TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
AU  - Beuković, Dejan
PY  - 2024-03
UR  - http://r.istocar.bg.ac.rs/handle/123456789/990
AB  - The aim of the study was to evaluate the effect of three protein
levels (with or without protease enzymes) on the weight and percentage yield of
each meat class in two genotypes of broiler chickens (fast-growing hybrid Cobb
500 and medium-growing hybrid Master Gris). Each genotype was divided into a
control group (C group) fed with a commercial feed mixture and an experimental
group fed with a low protein diet of 4% (E-I group) or 6% (E-II group) in relation
to the control group, with the addition of 200 mg/kg Ronozyme ProAct (E-I
group) or 300mg/kg Ronozyme ProAct (E-II group).
Weight and percentage yield of the meat classes were influenced by the
genotype. The fast-growing hybrid Cobb 500 had higher masses of all meat
classes and a higher percentage of class I meat, while the percentage of class II
and III meat was lower than in the medium-growing hybrid Master Gris (P<0.05).
Feeding had no effect on the weight and percentage yield of the individual meat
classes in either hybrid (P>0.05).
PB  - University of Kragujevac, Serbia
PB  - Faculty of Agronomy in Čačak
C3  - Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem
T1  - The effect of protease enzyme on the meat classes of two broiler chicken hybrids
SP  - 225
EP  - 231
DO  - 10.46793/SBT29.29VD
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Rakonjac, Simeon and Petričević, Veselin and Beuković, Dejan",
year = "2024-03",
abstract = "The aim of the study was to evaluate the effect of three protein
levels (with or without protease enzymes) on the weight and percentage yield of
each meat class in two genotypes of broiler chickens (fast-growing hybrid Cobb
500 and medium-growing hybrid Master Gris). Each genotype was divided into a
control group (C group) fed with a commercial feed mixture and an experimental
group fed with a low protein diet of 4% (E-I group) or 6% (E-II group) in relation
to the control group, with the addition of 200 mg/kg Ronozyme ProAct (E-I
group) or 300mg/kg Ronozyme ProAct (E-II group).
Weight and percentage yield of the meat classes were influenced by the
genotype. The fast-growing hybrid Cobb 500 had higher masses of all meat
classes and a higher percentage of class I meat, while the percentage of class II
and III meat was lower than in the medium-growing hybrid Master Gris (P<0.05).
Feeding had no effect on the weight and percentage yield of the individual meat
classes in either hybrid (P>0.05).",
publisher = "University of Kragujevac, Serbia, Faculty of Agronomy in Čačak",
journal = "Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem",
title = "The effect of protease enzyme on the meat classes of two broiler chicken hybrids",
pages = "225-231",
doi = "10.46793/SBT29.29VD"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Rakonjac, S., Petričević, V.,& Beuković, D.. (2024-03). The effect of protease enzyme on the meat classes of two broiler chicken hybrids. in Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem
University of Kragujevac, Serbia., 225-231.
https://doi.org/10.46793/SBT29.29VD

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Rakonjac S, Petričević V, Beuković D. The effect of protease enzyme on the meat classes of two broiler chicken hybrids. in Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem. 2024;:225-231.
doi:10.46793/SBT29.29VD .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Rakonjac, Simeon, Petričević, Veselin, Beuković, Dejan, "The effect of protease enzyme on the meat classes of two broiler chicken hybrids" in Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem (2024-03):225-231,
https://doi.org/10.46793/SBT29.29VD . .

TY  - JOUR
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Milošević, Božidar
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
AU  - Bjedov, Siniša
PY  - 2023-12
UR  - http://r.istocar.bg.ac.rs/handle/123456789/977
AB  - This study aimed to assess the effects of different dietary levels of the protease enzyme
and sex on skin, bone and muscle yields and percentages of breast, drumsticks and thighs
as the most valuable carcass parts of broilers. A total of 300 one-day-old, mixed-sex
broiler chickens (Cobb 500) were randomly divided into 3 dietary treatments with
different levels of protease supplementation (group C: a standard diet without Ronozyme
ProAct; group E-I: a diet with 200 mg/kg Ronozyme ProAct and a 4% crude protein
reduction compared to the standard diet; and group E-II: a diet with 300mg/kg Ronozyme
ProAct and a 6% crude protein reduction compared to the standard diet). All diets were
maize- and soybean meal-based. Feed and water were provided ad libitum throughout the
49-day feeding trial. The results obtained indicate that the dietary treatments had no
significant effect on skin, bone and muscle yields and percentages of the drumsticks,
thighs and breast (P > 0.05), except for the breast muscle weight in the female chickens
(especially between the E-I and E-II groups), and the drumstick bone percentage in the
males between the C and E-2 groups (P < 0.05). In all three groups, the male chickens
exhibited higher weights of skin, muscle and bone in breast, drumsticks and thighs than
the female chickens, and the differences were not significant only in the skin weight of
drumsticks and thighs (P > 0.05). The females had a higher yield of muscle tissue in
breast and drumsticks, a higher percentage of skin in drumsticks and thighs, and a lower
percentage of bone in drumsticks and thighs than the males (P < 0.05). Major differences
resulted from the effect of broiler sex, whereas the dietary treatments containing 3 levels
of protease supplementation had a very small effect on the yields and percentages of skin,
bone and muscle in breast, drumsticks and thighs.
PB  - University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia
T2  - Contemporary Agriculture
T1  - Effects of protease and sex on skin, bone and muscle yields and percentages of major primal cuts in broilers
VL  - 72
IS  - 4
SP  - 165
EP  - 169
DO  - 10.2478/contagri-2023-0021
ER  - 

@article{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Milošević, Božidar and Rakonjac, Simeon and Petričević, Veselin and Bjedov, Siniša",
year = "2023-12",
abstract = "This study aimed to assess the effects of different dietary levels of the protease enzyme
and sex on skin, bone and muscle yields and percentages of breast, drumsticks and thighs
as the most valuable carcass parts of broilers. A total of 300 one-day-old, mixed-sex
broiler chickens (Cobb 500) were randomly divided into 3 dietary treatments with
different levels of protease supplementation (group C: a standard diet without Ronozyme
ProAct; group E-I: a diet with 200 mg/kg Ronozyme ProAct and a 4% crude protein
reduction compared to the standard diet; and group E-II: a diet with 300mg/kg Ronozyme
ProAct and a 6% crude protein reduction compared to the standard diet). All diets were
maize- and soybean meal-based. Feed and water were provided ad libitum throughout the
49-day feeding trial. The results obtained indicate that the dietary treatments had no
significant effect on skin, bone and muscle yields and percentages of the drumsticks,
thighs and breast (P > 0.05), except for the breast muscle weight in the female chickens
(especially between the E-I and E-II groups), and the drumstick bone percentage in the
males between the C and E-2 groups (P < 0.05). In all three groups, the male chickens
exhibited higher weights of skin, muscle and bone in breast, drumsticks and thighs than
the female chickens, and the differences were not significant only in the skin weight of
drumsticks and thighs (P > 0.05). The females had a higher yield of muscle tissue in
breast and drumsticks, a higher percentage of skin in drumsticks and thighs, and a lower
percentage of bone in drumsticks and thighs than the males (P < 0.05). Major differences
resulted from the effect of broiler sex, whereas the dietary treatments containing 3 levels
of protease supplementation had a very small effect on the yields and percentages of skin,
bone and muscle in breast, drumsticks and thighs.",
publisher = "University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia",
journal = "Contemporary Agriculture",
title = "Effects of protease and sex on skin, bone and muscle yields and percentages of major primal cuts in broilers",
volume = "72",
number = "4",
pages = "165-169",
doi = "10.2478/contagri-2023-0021"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Milošević, B., Rakonjac, S., Petričević, V.,& Bjedov, S.. (2023-12). Effects of protease and sex on skin, bone and muscle yields and percentages of major primal cuts in broilers. in Contemporary Agriculture
University of Novi Sad, Faculty of Agriculture, Novi Sad, Serbia., 72(4), 165-169.
https://doi.org/10.2478/contagri-2023-0021

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Milošević B, Rakonjac S, Petričević V, Bjedov S. Effects of protease and sex on skin, bone and muscle yields and percentages of major primal cuts in broilers. in Contemporary Agriculture. 2023;72(4):165-169.
doi:10.2478/contagri-2023-0021 .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Milošević, Božidar, Rakonjac, Simeon, Petričević, Veselin, Bjedov, Siniša, "Effects of protease and sex on skin, bone and muscle yields and percentages of major primal cuts in broilers" in Contemporary Agriculture, 72, no. 4 (2023-12):165-169,
https://doi.org/10.2478/contagri-2023-0021 . .

TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Milošević, Božidar
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2023-03
UR  - http://r.istocar.bg.ac.rs/handle/123456789/874
AB  - The effects of feeding low dietary crude protein with
supplemental protease and sex on the weight and percent yields of individual
meat classes in broiler chickens of hybrid Cobb 500 were investigated. A total of
300 day-old broiler chicks were fed with one of the following three
experimental diets: control group (C), the experimental group I (E-I) contained
4% less crude protein than the control (C) and were supplemented with protease
(Ronozyme Pro Act) at a concentration of 200mg/kg feed and the experimental
group II (E-II) contained 6% less crude protein and were supplemented with
protease (Ronozyme Pro Act) at a concentration of 300mg/kg feed.
Supplementation of protease to diets had no significant effects on weights
of individual meat classes (P>0.05), as well as the percentage of meat classes,
and the only differences were manifested between E-I and E-II (P<0.05, female
broilers from the E-I group were had a higher percentage of class I meat and a
lower percentage of class III meat compared to females from the E-II group).
The effect of sex was manifested in the weights of all meat classes and the
percentage of class I meat and class III meat (P<0.05).
PB  - Faculty of Agronomy in Čačak
C3  - Proceedings of the 1st International symposium on biotechnology
T1  - Effect of protease added in food and sex on chicken meat clasess
DO  - 10.46793/SBT28.223D
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Milošević, Božidar and Lukić, Miloš and Rakonjac, Simeon and Petričević, Veselin",
year = "2023-03",
abstract = "The effects of feeding low dietary crude protein with
supplemental protease and sex on the weight and percent yields of individual
meat classes in broiler chickens of hybrid Cobb 500 were investigated. A total of
300 day-old broiler chicks were fed with one of the following three
experimental diets: control group (C), the experimental group I (E-I) contained
4% less crude protein than the control (C) and were supplemented with protease
(Ronozyme Pro Act) at a concentration of 200mg/kg feed and the experimental
group II (E-II) contained 6% less crude protein and were supplemented with
protease (Ronozyme Pro Act) at a concentration of 300mg/kg feed.
Supplementation of protease to diets had no significant effects on weights
of individual meat classes (P>0.05), as well as the percentage of meat classes,
and the only differences were manifested between E-I and E-II (P<0.05, female
broilers from the E-I group were had a higher percentage of class I meat and a
lower percentage of class III meat compared to females from the E-II group).
The effect of sex was manifested in the weights of all meat classes and the
percentage of class I meat and class III meat (P<0.05).",
publisher = "Faculty of Agronomy in Čačak",
journal = "Proceedings of the 1st International symposium on biotechnology",
title = "Effect of protease added in food and sex on chicken meat clasess",
doi = "10.46793/SBT28.223D"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Milošević, B., Lukić, M., Rakonjac, S.,& Petričević, V.. (2023-03). Effect of protease added in food and sex on chicken meat clasess. in Proceedings of the 1st International symposium on biotechnology
Faculty of Agronomy in Čačak..
https://doi.org/10.46793/SBT28.223D

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Milošević B, Lukić M, Rakonjac S, Petričević V. Effect of protease added in food and sex on chicken meat clasess. in Proceedings of the 1st International symposium on biotechnology. 2023;.
doi:10.46793/SBT28.223D .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Milošević, Božidar, Lukić, Miloš, Rakonjac, Simeon, Petričević, Veselin, "Effect of protease added in food and sex on chicken meat clasess" in Proceedings of the 1st International symposium on biotechnology (2023-03),
https://doi.org/10.46793/SBT28.223D . .

TY  - CONF
AU  - Rakonjac, Simeon
AU  - Bogosavljević-Bošković, Snežana
AU  - Dosković, Vladimir
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Petričević, Veselin
AU  - Petrović D., Milun
PY  - 2023-03
UR  - http://r.istocar.bg.ac.rs/handle/123456789/873
AB  - This paper aimed to determine the effect of the rearing system and
genotype of laying hens on the fatty acid composition of eggs. Seven times
during the one-year production cycle, 15 eggs from all four experimental groups
were taken, and fatty acid composition was determined on pooled samples. Based
on the obtained results, it can be concluded that the highest content of SFA had
organic New Hampshire eggs, MUFA organic Isa Brown eggs and PUFA floorproduced
eggs. Regarding the ratio of n-6:n-3 PUFA, it can be noted that the
organic eggs had a lower ratio compared to the floor eggs, as well as the New
Hampshire breed compared to the Isa Brown hybrid.
PB  - Faculty of Agronomy in Čačak
C3  - Proceedings of the 1st International symposium on biotechnology
T1  - The effect of the rearing system and genotype of laying hens on fatty acid composition of eggs
SP  - 189
EP  - 194
DO  - 10.46793/SBT28.189R
ER  - 

@conference{
author = "Rakonjac, Simeon and Bogosavljević-Bošković, Snežana and Dosković, Vladimir and Lukić, Miloš and Škrbić, Zdenka and Petričević, Veselin and Petrović D., Milun",
year = "2023-03",
abstract = "This paper aimed to determine the effect of the rearing system and
genotype of laying hens on the fatty acid composition of eggs. Seven times
during the one-year production cycle, 15 eggs from all four experimental groups
were taken, and fatty acid composition was determined on pooled samples. Based
on the obtained results, it can be concluded that the highest content of SFA had
organic New Hampshire eggs, MUFA organic Isa Brown eggs and PUFA floorproduced
eggs. Regarding the ratio of n-6:n-3 PUFA, it can be noted that the
organic eggs had a lower ratio compared to the floor eggs, as well as the New
Hampshire breed compared to the Isa Brown hybrid.",
publisher = "Faculty of Agronomy in Čačak",
journal = "Proceedings of the 1st International symposium on biotechnology",
title = "The effect of the rearing system and genotype of laying hens on fatty acid composition of eggs",
pages = "189-194",
doi = "10.46793/SBT28.189R"
}

Rakonjac, S., Bogosavljević-Bošković, S., Dosković, V., Lukić, M., Škrbić, Z., Petričević, V.,& Petrović D., M.. (2023-03). The effect of the rearing system and genotype of laying hens on fatty acid composition of eggs. in Proceedings of the 1st International symposium on biotechnology
Faculty of Agronomy in Čačak., 189-194.
https://doi.org/10.46793/SBT28.189R

Rakonjac S, Bogosavljević-Bošković S, Dosković V, Lukić M, Škrbić Z, Petričević V, Petrović D. M. The effect of the rearing system and genotype of laying hens on fatty acid composition of eggs. in Proceedings of the 1st International symposium on biotechnology. 2023;:189-194.
doi:10.46793/SBT28.189R .

Rakonjac, Simeon, Bogosavljević-Bošković, Snežana, Dosković, Vladimir, Lukić, Miloš, Škrbić, Zdenka, Petričević, Veselin, Petrović D., Milun, "The effect of the rearing system and genotype of laying hens on fatty acid composition of eggs" in Proceedings of the 1st International symposium on biotechnology (2023-03):189-194,
https://doi.org/10.46793/SBT28.189R . .

TY  - CONF
AU  - Rakonjac, Simeon
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Dosković, Vladimir
AU  - Petričević, Veselin
AU  - Petrović, Milun
PY  - 2023
UR  - http://r.istocar.bg.ac.rs/handle/123456789/912
AB  - Organic poultry production has a continuous growth trend that is expected to continue in the following period. Today's consumers expect this method of production to ensure the quality of life and a high level of welfare for the reared animals, which will contribute to the quality of the products produced in this way. Since this is a relatively young and still insufficiently researched rearing system, there are a lot of unknowns and unresolved issues that slow down its faster
development. A genotype that would provide optimal production results in this production system has not yet been selected, so either hybrids from conventional production or breeds with poor production characteristics are often used. In addition to the undoubted benefit that the use of the outlet brings, which is reflected in the better quality of the organic products and the greater degree of welfare and vitality of the reared poultry, the negative impact of extreme weather conditions still exists, as well as the increased risk of transmitting various diseases and parasites as well as predator attacks.
PB  - Institut za stočarstvo
C3  - 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Proceedings
T1  - Organic poultry production: genotype choice and welfare
SP  - 182
EP  - 192
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_912
ER  - 

@conference{
author = "Rakonjac, Simeon and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Dosković, Vladimir and Petričević, Veselin and Petrović, Milun",
year = "2023",
abstract = "Organic poultry production has a continuous growth trend that is expected to continue in the following period. Today's consumers expect this method of production to ensure the quality of life and a high level of welfare for the reared animals, which will contribute to the quality of the products produced in this way. Since this is a relatively young and still insufficiently researched rearing system, there are a lot of unknowns and unresolved issues that slow down its faster
development. A genotype that would provide optimal production results in this production system has not yet been selected, so either hybrids from conventional production or breeds with poor production characteristics are often used. In addition to the undoubted benefit that the use of the outlet brings, which is reflected in the better quality of the organic products and the greater degree of welfare and vitality of the reared poultry, the negative impact of extreme weather conditions still exists, as well as the increased risk of transmitting various diseases and parasites as well as predator attacks.",
publisher = "Institut za stočarstvo",
journal = "14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Proceedings",
title = "Organic poultry production: genotype choice and welfare",
pages = "182-192",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_912"
}

Rakonjac, S., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Dosković, V., Petričević, V.,& Petrović, M.. (2023). Organic poultry production: genotype choice and welfare. in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Proceedings
Institut za stočarstvo., 182-192.
https://hdl.handle.net/21.15107/rcub_ristocar_912

Rakonjac S, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Dosković V, Petričević V, Petrović M. Organic poultry production: genotype choice and welfare. in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Proceedings. 2023;:182-192.
https://hdl.handle.net/21.15107/rcub_ristocar_912 .

Rakonjac, Simeon, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Dosković, Vladimir, Petričević, Veselin, Petrović, Milun, "Organic poultry production: genotype choice and welfare" in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Proceedings (2023):182-192,
https://hdl.handle.net/21.15107/rcub_ristocar_912 .

TY  - CONF
AU  - Rakonjac, Simeon
AU  - Bogosavljević-Bošković, Snežana
AU  - Dosković, Vladimir
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Petričević, Veselin
AU  - Petrović, Milun D.
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/811
AB  - Cilj ovog rada je bio da se utvrdi uticaj sistema gajenja (podnog i
organskog) i genotipa kokoši nosilja (Isa Brown hibrid i New Hampshire rasa) na
sadržaj holesterola u jajima. U sedam navrata tokom jednogodišnjeg proizvodnog
ciklusa (24, 32, 40, 48, 56, 64 i 72. nedelja starosti nosilja) uzeto je po 15 jaja iz sve
četiri ogledne grupe, i na zbirnim uzorcima je utvrđen sadržaj holesterola. Na
osnovu dobijenih rezultata, može se zaključiti da su jedinke iz podnog sistema
gajenja imale manji sadržaj holesterola u jajima u odnosu na organski gajene
kokoši nosilje, dok se uticaj genotipa na ovu osobinu ne može sa sigurnošću
definistati.
AB  - The aim of this study was to determine the effect of the rearing system (floor
and organic) and the genotype of laying hens (Isa Brown hybrid and New
Hampshire breed) on the cholesterol content in eggs. On seven occasions during
the one-year production cycle (24, 32, 40, 48, 56, 64 and 72 weeks hen's age), 15
eggs from all four experimental groups were taken, and cholesterol content was
determined on pooled samples. Based on the obtained results, it can be concluded
that laying hens from the floor rearing system had lower cholesterol content in
eggs compared to organic, while the effect of genotype on this trait cannot be
defined with certainty.
C3  - Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022.
T1  - UTICAJ SISTEMA GAJENJA I GENOTIPA KOKOŠI NOSILJA NA SADRŽAJ HOLESTEROLA U JAJIMA
T1  - EFFECT OF REARING SYSTEMS AND LAYER HENS GENOTYPES ON CHOLESTEROL CONTENT IN EGGS
SP  - 213
EP  - 218
DO  - 10.46793/SBT27.213R
ER  - 

@conference{
author = "Rakonjac, Simeon and Bogosavljević-Bošković, Snežana and Dosković, Vladimir and Lukić, Miloš and Škrbić, Zdenka and Petričević, Veselin and Petrović, Milun D.",
year = "2022",
abstract = "Cilj ovog rada je bio da se utvrdi uticaj sistema gajenja (podnog i
organskog) i genotipa kokoši nosilja (Isa Brown hibrid i New Hampshire rasa) na
sadržaj holesterola u jajima. U sedam navrata tokom jednogodišnjeg proizvodnog
ciklusa (24, 32, 40, 48, 56, 64 i 72. nedelja starosti nosilja) uzeto je po 15 jaja iz sve
četiri ogledne grupe, i na zbirnim uzorcima je utvrđen sadržaj holesterola. Na
osnovu dobijenih rezultata, može se zaključiti da su jedinke iz podnog sistema
gajenja imale manji sadržaj holesterola u jajima u odnosu na organski gajene
kokoši nosilje, dok se uticaj genotipa na ovu osobinu ne može sa sigurnošću
definistati., The aim of this study was to determine the effect of the rearing system (floor
and organic) and the genotype of laying hens (Isa Brown hybrid and New
Hampshire breed) on the cholesterol content in eggs. On seven occasions during
the one-year production cycle (24, 32, 40, 48, 56, 64 and 72 weeks hen's age), 15
eggs from all four experimental groups were taken, and cholesterol content was
determined on pooled samples. Based on the obtained results, it can be concluded
that laying hens from the floor rearing system had lower cholesterol content in
eggs compared to organic, while the effect of genotype on this trait cannot be
defined with certainty.",
journal = "Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022.",
title = "UTICAJ SISTEMA GAJENJA I GENOTIPA KOKOŠI NOSILJA NA SADRŽAJ HOLESTEROLA U JAJIMA, EFFECT OF REARING SYSTEMS AND LAYER HENS GENOTYPES ON CHOLESTEROL CONTENT IN EGGS",
pages = "213-218",
doi = "10.46793/SBT27.213R"
}

Rakonjac, S., Bogosavljević-Bošković, S., Dosković, V., Lukić, M., Škrbić, Z., Petričević, V.,& Petrović, M. D.. (2022). UTICAJ SISTEMA GAJENJA I GENOTIPA KOKOŠI NOSILJA NA SADRŽAJ HOLESTEROLA U JAJIMA. in Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022., 213-218.
https://doi.org/10.46793/SBT27.213R

Rakonjac S, Bogosavljević-Bošković S, Dosković V, Lukić M, Škrbić Z, Petričević V, Petrović MD. UTICAJ SISTEMA GAJENJA I GENOTIPA KOKOŠI NOSILJA NA SADRŽAJ HOLESTEROLA U JAJIMA. in Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022.. 2022;:213-218.
doi:10.46793/SBT27.213R .

Rakonjac, Simeon, Bogosavljević-Bošković, Snežana, Dosković, Vladimir, Lukić, Miloš, Škrbić, Zdenka, Petričević, Veselin, Petrović, Milun D., "UTICAJ SISTEMA GAJENJA I GENOTIPA KOKOŠI NOSILJA NA SADRŽAJ HOLESTEROLA U JAJIMA" in Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022. (2022):213-218,
https://doi.org/10.46793/SBT27.213R . .

TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Milošević, Božidar
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/810
AB  - U radu su prikazani najvažniji aspekti delovanja egzogenih enzima
(amilaze, ksilanaze, glukanaze, celulaze, hemicelulaze, pektinaze, fitaze i proteaze)
dodatih u hranu za brojlere. Dodatak enzima hrani za brojlere ima nutritivno,
zdravstveno, ekonomsko i ekološko opravdanje. Korišćenje kompleksa egzogenih
enzima kao dodataka potpunim smešama za ishranu brojlerskih pilića u različitim
fazama tova, značajno utiče na povećanje dostupnosti rezervnih polisaharida,
masti, proteina i nekih mineralnih materija, bolju iskoristivost energije iz hrane,
bolje zdravstveno stanje pilića, bolji kvalitet trupova i pilećeg mesa, smanjenje
troškova ishrane u tovu pilića (a time i na ukupne troškove proizvodnje), kao i na
smanjenje zagađenosti životne sredine i jedna je od najlakše izvodljivih alternativa
za poboljšanje profitabilnosti proizvodnje u živinarstvu.
C3  - Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022.
T1  - Enzimi u ishrani brojlera
SP  - 229
EP  - 236
DO  - 10.46793/SBT27.229D
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Milošević, Božidar and Lukić, Miloš and Rakonjac, Simeon and Petričević, Veselin",
year = "2022",
abstract = "U radu su prikazani najvažniji aspekti delovanja egzogenih enzima
(amilaze, ksilanaze, glukanaze, celulaze, hemicelulaze, pektinaze, fitaze i proteaze)
dodatih u hranu za brojlere. Dodatak enzima hrani za brojlere ima nutritivno,
zdravstveno, ekonomsko i ekološko opravdanje. Korišćenje kompleksa egzogenih
enzima kao dodataka potpunim smešama za ishranu brojlerskih pilića u različitim
fazama tova, značajno utiče na povećanje dostupnosti rezervnih polisaharida,
masti, proteina i nekih mineralnih materija, bolju iskoristivost energije iz hrane,
bolje zdravstveno stanje pilića, bolji kvalitet trupova i pilećeg mesa, smanjenje
troškova ishrane u tovu pilića (a time i na ukupne troškove proizvodnje), kao i na
smanjenje zagađenosti životne sredine i jedna je od najlakše izvodljivih alternativa
za poboljšanje profitabilnosti proizvodnje u živinarstvu.",
journal = "Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022.",
title = "Enzimi u ishrani brojlera",
pages = "229-236",
doi = "10.46793/SBT27.229D"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Milošević, B., Lukić, M., Rakonjac, S.,& Petričević, V.. (2022). Enzimi u ishrani brojlera. in Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022., 229-236.
https://doi.org/10.46793/SBT27.229D

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Milošević B, Lukić M, Rakonjac S, Petričević V. Enzimi u ishrani brojlera. in Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022.. 2022;:229-236.
doi:10.46793/SBT27.229D .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Milošević, Božidar, Lukić, Miloš, Rakonjac, Simeon, Petričević, Veselin, "Enzimi u ishrani brojlera" in Zbornik radova XXVII Savetovanje o biotehnologiji sa međunarodnim učešćem, Čačak, 25-26. mart 2022. (2022):229-236,
https://doi.org/10.46793/SBT27.229D . .

TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Milošević, Božidar
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/809
AB  - This study analyses the effect of different protein levels in broiler feeds (supplemented with
protease), different lengths of fattening period and sex on body conformation in fast-growing
Cobb 500 broilers. Complete feeds for broilers in experimental groups E-I and E-II contained 4
and 6% less crude protein than the control (C) and were supplemented with protease (Ronozyme
Pro Act) at a concentration of 200mg/kg feed and 300mg/kg feed respectively. At 49 and 63 days
of age, 10 male and 10 female broilers were randomly selected from each experimental group and
slaughtered. Body conformation measurement included absolute carcass conformation measures
(metatarsus length, keel length, breast depth, breast angle, thigh girth) and relative body
conformation measures - conformation indices (body weight/metatarsus length, body weight/keel
length, body weight/breast depth, body weight/thigh girth). The results showed that dietary
treatment did not affect conformation measures, as well as that the time of slaughter and sex of
chickens had a significant effect on the examined carcass quality parameters. Namely, the length
of the fattening period affected all conformation indices, as well as some absolute measures of
carcass conformation - metatarsus length, keel length and thigh girth, while sex had a significant
effect on the values of the all absolute values of carcass conformation (except for breast angle)
and indices body weight/keel length and body weight/breast depth.
C3  - Book of Proceedings of the XIII International Scientific Agricultural Symposium „Agrosym 2022“, Jahorina, October 6-9, 2022, Bosnia and Herzegovina
T1  - EFFECTS OF PROTEASE, DURATION OF FATTENING PERIOD AND SEX OF BROILERS ON CARCASS CONFORMATION MEASURES
SP  - 1050
EP  - 1056
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_809
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Milošević, Božidar and Lukić, Miloš and Rakonjac, Simeon and Petričević, Veselin",
year = "2022",
abstract = "This study analyses the effect of different protein levels in broiler feeds (supplemented with
protease), different lengths of fattening period and sex on body conformation in fast-growing
Cobb 500 broilers. Complete feeds for broilers in experimental groups E-I and E-II contained 4
and 6% less crude protein than the control (C) and were supplemented with protease (Ronozyme
Pro Act) at a concentration of 200mg/kg feed and 300mg/kg feed respectively. At 49 and 63 days
of age, 10 male and 10 female broilers were randomly selected from each experimental group and
slaughtered. Body conformation measurement included absolute carcass conformation measures
(metatarsus length, keel length, breast depth, breast angle, thigh girth) and relative body
conformation measures - conformation indices (body weight/metatarsus length, body weight/keel
length, body weight/breast depth, body weight/thigh girth). The results showed that dietary
treatment did not affect conformation measures, as well as that the time of slaughter and sex of
chickens had a significant effect on the examined carcass quality parameters. Namely, the length
of the fattening period affected all conformation indices, as well as some absolute measures of
carcass conformation - metatarsus length, keel length and thigh girth, while sex had a significant
effect on the values of the all absolute values of carcass conformation (except for breast angle)
and indices body weight/keel length and body weight/breast depth.",
journal = "Book of Proceedings of the XIII International Scientific Agricultural Symposium „Agrosym 2022“, Jahorina, October 6-9, 2022, Bosnia and Herzegovina",
title = "EFFECTS OF PROTEASE, DURATION OF FATTENING PERIOD AND SEX OF BROILERS ON CARCASS CONFORMATION MEASURES",
pages = "1050-1056",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_809"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Milošević, B., Lukić, M., Rakonjac, S.,& Petričević, V.. (2022). EFFECTS OF PROTEASE, DURATION OF FATTENING PERIOD AND SEX OF BROILERS ON CARCASS CONFORMATION MEASURES. in Book of Proceedings of the XIII International Scientific Agricultural Symposium „Agrosym 2022“, Jahorina, October 6-9, 2022, Bosnia and Herzegovina, 1050-1056.
https://hdl.handle.net/21.15107/rcub_ristocar_809

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Milošević B, Lukić M, Rakonjac S, Petričević V. EFFECTS OF PROTEASE, DURATION OF FATTENING PERIOD AND SEX OF BROILERS ON CARCASS CONFORMATION MEASURES. in Book of Proceedings of the XIII International Scientific Agricultural Symposium „Agrosym 2022“, Jahorina, October 6-9, 2022, Bosnia and Herzegovina. 2022;:1050-1056.
https://hdl.handle.net/21.15107/rcub_ristocar_809 .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Milošević, Božidar, Lukić, Miloš, Rakonjac, Simeon, Petričević, Veselin, "EFFECTS OF PROTEASE, DURATION OF FATTENING PERIOD AND SEX OF BROILERS ON CARCASS CONFORMATION MEASURES" in Book of Proceedings of the XIII International Scientific Agricultural Symposium „Agrosym 2022“, Jahorina, October 6-9, 2022, Bosnia and Herzegovina (2022):1050-1056,
https://hdl.handle.net/21.15107/rcub_ristocar_809 .

TY  - JOUR
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Tolimir, Nataša
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/804
AB  - The egg production sector is in a transitional period with regard to the permitted housing systems, i.e. rearing in conventional cages under certain conditions to the complete ban of any form of cage system. The changes were caused by concern for the layer wellfare but with the expected effects on productivity as well. The aim of the research was to determine the effects of the floor space allowance in cage and non-cage housing systems on the feather score and egg production of laying hens of three ages, from the aspect of the regulated minimum and optimal space in the cage system (C) and the space provided in the extensive rearing system with hens in smaller groups in the facility (extensive indoor -EI). In order to determine the feather score, the body weight of the laying hens and the weight of the eggs, three groups of laying hens were formed: C4 (564 cm2 per hen, cage system), C3 (751 cm2 per hen, cage system) and EI ( 3000 cm2 per hen, extensive indoor). The feather score and body weight of laying hens were determined in three ages of hens (30, 40, 50 weeks), by individual assessment and measurement of all hens in the experiment. The hen-day egg production and egg weight were determined in the same weeks of laying age. In addition to the expected decrease in feather score with the age of hens, results indicated a significant interaction between age and space allowance per hen. Observed by individual body parts, as well as based on the overall feather score, the space allowance per hen exhibited a full, cumulative effect at 50 weeks of age. Based on the space allowance, it was possible to rank the overall feather score, with the laying hens with the most space having the best feather score. The effect of the space allowance on the body weight of the laying hens was manifested through the space available on the feeder, which resulted in the lowest (p<0.01) body weight values recorded in laying hens of the C4 group. Egg production was not significantly influenced by the space allowance per hen (p=0.069), but a connection between egg production and the housing system can be concluded. The average egg weight, in addition to the known effect of layer age, was the lowest (p<0.01) in the group with the least space allowance per hen.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - The effect of space allowance in the cage and floor systems on feather condition and egg production
VL  - 38
IS  - 2
SP  - 125
EP  - 137
DO  - 10.2298/ BAH2202125S
ER  - 

@article{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Dosković, Vladimir and Tolimir, Nataša",
year = "2022",
abstract = "The egg production sector is in a transitional period with regard to the permitted housing systems, i.e. rearing in conventional cages under certain conditions to the complete ban of any form of cage system. The changes were caused by concern for the layer wellfare but with the expected effects on productivity as well. The aim of the research was to determine the effects of the floor space allowance in cage and non-cage housing systems on the feather score and egg production of laying hens of three ages, from the aspect of the regulated minimum and optimal space in the cage system (C) and the space provided in the extensive rearing system with hens in smaller groups in the facility (extensive indoor -EI). In order to determine the feather score, the body weight of the laying hens and the weight of the eggs, three groups of laying hens were formed: C4 (564 cm2 per hen, cage system), C3 (751 cm2 per hen, cage system) and EI ( 3000 cm2 per hen, extensive indoor). The feather score and body weight of laying hens were determined in three ages of hens (30, 40, 50 weeks), by individual assessment and measurement of all hens in the experiment. The hen-day egg production and egg weight were determined in the same weeks of laying age. In addition to the expected decrease in feather score with the age of hens, results indicated a significant interaction between age and space allowance per hen. Observed by individual body parts, as well as based on the overall feather score, the space allowance per hen exhibited a full, cumulative effect at 50 weeks of age. Based on the space allowance, it was possible to rank the overall feather score, with the laying hens with the most space having the best feather score. The effect of the space allowance on the body weight of the laying hens was manifested through the space available on the feeder, which resulted in the lowest (p<0.01) body weight values recorded in laying hens of the C4 group. Egg production was not significantly influenced by the space allowance per hen (p=0.069), but a connection between egg production and the housing system can be concluded. The average egg weight, in addition to the known effect of layer age, was the lowest (p<0.01) in the group with the least space allowance per hen.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "The effect of space allowance in the cage and floor systems on feather condition and egg production",
volume = "38",
number = "2",
pages = "125-137",
doi = "10.2298/ BAH2202125S"
}

Škrbić, Z., Lukić, M., Petričević, V., Bogosavljević-Bošković, S., Rakonjac, S., Dosković, V.,& Tolimir, N.. (2022). The effect of space allowance in the cage and floor systems on feather condition and egg production. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 38(2), 125-137.
https://doi.org/10.2298/ BAH2202125S

Škrbić Z, Lukić M, Petričević V, Bogosavljević-Bošković S, Rakonjac S, Dosković V, Tolimir N. The effect of space allowance in the cage and floor systems on feather condition and egg production. in Biotechnology in Animal Husbandry. 2022;38(2):125-137.
doi:10.2298/ BAH2202125S .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Dosković, Vladimir, Tolimir, Nataša, "The effect of space allowance in the cage and floor systems on feather condition and egg production" in Biotechnology in Animal Husbandry, 38, no. 2 (2022):125-137,
https://doi.org/10.2298/ BAH2202125S . .

TY  - JOUR
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Tolimir, Nataša
PY  - 2021-06
UR  - http://r.istocar.bg.ac.rs/handle/123456789/755
AB  - In less intensive production systems, native poultry breeds can be used in order to diversify the products and achieve self-sustainability of these breeds through production. Given the missing data on the sustainability of quality of eggs obtained from indigenous, native hens, during storage, the aim of the study was to determine the most important parameters of egg quality of indigenous breed of Banat Naked Neck hens during a four-week period in different storage conditions. The design of the experiment was two-factorial with 4 levels of storage time factors (fresh eggs - 0, 1, 2, 3 and 4 weeks of storage) and 2 levels of temperature storage condition factors (room temperature and refrigerator). The room temperature was on average 21.3°C and the refrigerator temperature 8°C. Quality analysis was performed on a total of 200 eggs, and it included following parameters: egg weight, egg weight loss, weight and proportion of structural components: shell, yolk and albumen, albumen height, yolk colour, Haugh Units and albumen pH. The storage time had a significant effect on all properties of egg quality, except for the yolk colour, which was under the impact of the interaction of storage time and temperature. Storage temperature influenced egg weight loss (<0.001), shell weight (<0.05), albumen height (<0.0001), Haugh Units (<0.0001) and albumen pH (<0.0001). By storing in the refrigerator, changes in internal quality were significantly slowed down. After 28 days of storage in the refrigerator, the values of albumen and Haugh Units were higher than the same parameters of eggs stored for only 7 days at room temperature.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Egg quality of Banat naked neck hens during storage
VL  - 37
IS  - 2
SP  - 87
EP  - 97
DO  - 10.2298/BAH2102087S
ER  - 

@article{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Dosković, Vladimir and Tolimir, Nataša",
year = "2021-06",
abstract = "In less intensive production systems, native poultry breeds can be used in order to diversify the products and achieve self-sustainability of these breeds through production. Given the missing data on the sustainability of quality of eggs obtained from indigenous, native hens, during storage, the aim of the study was to determine the most important parameters of egg quality of indigenous breed of Banat Naked Neck hens during a four-week period in different storage conditions. The design of the experiment was two-factorial with 4 levels of storage time factors (fresh eggs - 0, 1, 2, 3 and 4 weeks of storage) and 2 levels of temperature storage condition factors (room temperature and refrigerator). The room temperature was on average 21.3°C and the refrigerator temperature 8°C. Quality analysis was performed on a total of 200 eggs, and it included following parameters: egg weight, egg weight loss, weight and proportion of structural components: shell, yolk and albumen, albumen height, yolk colour, Haugh Units and albumen pH. The storage time had a significant effect on all properties of egg quality, except for the yolk colour, which was under the impact of the interaction of storage time and temperature. Storage temperature influenced egg weight loss (<0.001), shell weight (<0.05), albumen height (<0.0001), Haugh Units (<0.0001) and albumen pH (<0.0001). By storing in the refrigerator, changes in internal quality were significantly slowed down. After 28 days of storage in the refrigerator, the values of albumen and Haugh Units were higher than the same parameters of eggs stored for only 7 days at room temperature.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Egg quality of Banat naked neck hens during storage",
volume = "37",
number = "2",
pages = "87-97",
doi = "10.2298/BAH2102087S"
}

Škrbić, Z., Lukić, M., Petričević, V., Bogosavljević-Bošković, S., Rakonjac, S., Dosković, V.,& Tolimir, N.. (2021-06). Egg quality of Banat naked neck hens during storage. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 37(2), 87-97.
https://doi.org/10.2298/BAH2102087S

Škrbić Z, Lukić M, Petričević V, Bogosavljević-Bošković S, Rakonjac S, Dosković V, Tolimir N. Egg quality of Banat naked neck hens during storage. in Biotechnology in Animal Husbandry. 2021;37(2):87-97.
doi:10.2298/BAH2102087S .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Dosković, Vladimir, Tolimir, Nataša, "Egg quality of Banat naked neck hens during storage" in Biotechnology in Animal Husbandry, 37, no. 2 (2021-06):87-97,
https://doi.org/10.2298/BAH2102087S . .

TY  - JOUR
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Petrović, Milun D.
PY  - 2021
UR  - http://r.istocar.bg.ac.rs/handle/123456789/758
AB  - The aim of this study was to evaluate the effect of rearing systems
and genotypes on production performance and egg quality. Isa Brown
and New Hampshire genotypes were used in this study. These two
genotypes were housed in floor and organic rearing systems. During the
experimental period, which lasted one year (52 weeks), the following
production performance parameters were recorded: egg production,
daily egg mass, feed consumption, feed conversion efficiency, and
mortality. Fifteen eggs per group were collected for analysis at 64 weeks
of hen age. These samples were evaluated for external parameters
(egg weight and egg shape index), internal parameters (albumen
height, Haugh unit, and the proportions of albumen, yolk and shell),
eggshell quality parameters (shell thickness, shell deformation and
shell breaking strength), and eggs’ chemical composition (dry matter,
minerals, protein and lipids). Generally, Isa Brown hens had better
production performance than New Hampshire hens. At the same time,
organic New Hampshire layers performed better than floor-reared ones.
Genotype had a significant effect on all ten egg quality parameters
(external, internal and eggshell quality), rearing system independently
affected only egg weight, and the interaction of the observed factors
significantly influenced seven parameters. Genotype had a significant
effect on three of the four chemical composition parameters, while no
significant effect of the rearing system was established on the chemical
composition of eggs. The rearing system x genotype interaction
significantly affected the eggs’ protein content.
PB  - Fundação APINCO de Ciência e Tecnologia Avícolas
T2  - Brazilian Journal of Poultry Science
T1  - Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System
VL  - 23
IS  - 02
SP  - 001
EP  - 008
DO  - 10.1590/1806-9061-2019-1045
ER  - 

@article{
author = "Rakonjac, Simeon and Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Petrović, Milun D.",
year = "2021",
abstract = "The aim of this study was to evaluate the effect of rearing systems
and genotypes on production performance and egg quality. Isa Brown
and New Hampshire genotypes were used in this study. These two
genotypes were housed in floor and organic rearing systems. During the
experimental period, which lasted one year (52 weeks), the following
production performance parameters were recorded: egg production,
daily egg mass, feed consumption, feed conversion efficiency, and
mortality. Fifteen eggs per group were collected for analysis at 64 weeks
of hen age. These samples were evaluated for external parameters
(egg weight and egg shape index), internal parameters (albumen
height, Haugh unit, and the proportions of albumen, yolk and shell),
eggshell quality parameters (shell thickness, shell deformation and
shell breaking strength), and eggs’ chemical composition (dry matter,
minerals, protein and lipids). Generally, Isa Brown hens had better
production performance than New Hampshire hens. At the same time,
organic New Hampshire layers performed better than floor-reared ones.
Genotype had a significant effect on all ten egg quality parameters
(external, internal and eggshell quality), rearing system independently
affected only egg weight, and the interaction of the observed factors
significantly influenced seven parameters. Genotype had a significant
effect on three of the four chemical composition parameters, while no
significant effect of the rearing system was established on the chemical
composition of eggs. The rearing system x genotype interaction
significantly affected the eggs’ protein content.",
publisher = "Fundação APINCO de Ciência e Tecnologia Avícolas",
journal = "Brazilian Journal of Poultry Science",
title = "Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System",
volume = "23",
number = "02",
pages = "001-008",
doi = "10.1590/1806-9061-2019-1045"
}

Rakonjac, S., Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Petričević, V.,& Petrović, M. D.. (2021). Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System. in Brazilian Journal of Poultry Science
Fundação APINCO de Ciência e Tecnologia Avícolas., 23(02), 001-008.
https://doi.org/10.1590/1806-9061-2019-1045

Rakonjac S, Dosković V, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Petričević V, Petrović MD. Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System. in Brazilian Journal of Poultry Science. 2021;23(02):001-008.
doi:10.1590/1806-9061-2019-1045 .

Rakonjac, Simeon, Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Petrović, Milun D., "Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System" in Brazilian Journal of Poultry Science, 23, no. 02 (2021):001-008,
https://doi.org/10.1590/1806-9061-2019-1045 . .

TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Milošević, Božidar
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2021
UR  - http://r.istocar.bg.ac.rs/handle/123456789/757
AB  - This study compared weight and percent yields of primal
carcass cuts of commercial fast-growing broiler - Cobb 500 and medium-growing
broiler genotype - Master Gris. Three hundred Cobb 500 chickens and three
hundred Master Gris chickens were used for the experiment. Feed and water were
provided ad-libitum. Treatments were: T1 - corn-soybean meal based control diet;
T2: T1 − 4.0% crude protein than in the control diet + 0.2% protease and T3: T1 −
6.0% crude protein than in the control diet + 0.3% protease. Chickens were
slaughtered at 49 days of age. Medium-growing hybrid Master Gris had a lower
weight of all primal carcass cuts and breast yield (as a percentage of ready-to-grill
carcass weight), as well as higher thighs, drumsticks, wings and pelvis yields in
comparison with the Cobb 500 broilers (P<0.05), except back yield (P>0.05). Also,
the addition of protease to broiler feed had no significant effect on the weight and
percent yields of primal carcass cuts (P>0.05).
C3  - Proceedings of the 13th International Symposium Modern Trends in Livestock Production, October 6 – 8, 2021, Belgrade, Serbia
T1  - Effects of genotype and protease enzyme supplementation on the primal carcass cuts of chickens
SP  - 516
EP  - 523
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_757
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Milošević, Božidar and Škrbić, Zdenka and Lukić, Miloš and Rakonjac, Simeon and Petričević, Veselin",
year = "2021",
abstract = "This study compared weight and percent yields of primal
carcass cuts of commercial fast-growing broiler - Cobb 500 and medium-growing
broiler genotype - Master Gris. Three hundred Cobb 500 chickens and three
hundred Master Gris chickens were used for the experiment. Feed and water were
provided ad-libitum. Treatments were: T1 - corn-soybean meal based control diet;
T2: T1 − 4.0% crude protein than in the control diet + 0.2% protease and T3: T1 −
6.0% crude protein than in the control diet + 0.3% protease. Chickens were
slaughtered at 49 days of age. Medium-growing hybrid Master Gris had a lower
weight of all primal carcass cuts and breast yield (as a percentage of ready-to-grill
carcass weight), as well as higher thighs, drumsticks, wings and pelvis yields in
comparison with the Cobb 500 broilers (P<0.05), except back yield (P>0.05). Also,
the addition of protease to broiler feed had no significant effect on the weight and
percent yields of primal carcass cuts (P>0.05).",
journal = "Proceedings of the 13th International Symposium Modern Trends in Livestock Production, October 6 – 8, 2021, Belgrade, Serbia",
title = "Effects of genotype and protease enzyme supplementation on the primal carcass cuts of chickens",
pages = "516-523",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_757"
}

Dosković, V., Bogosavljević-Bošković, S., Milošević, B., Škrbić, Z., Lukić, M., Rakonjac, S.,& Petričević, V.. (2021). Effects of genotype and protease enzyme supplementation on the primal carcass cuts of chickens. in Proceedings of the 13th International Symposium Modern Trends in Livestock Production, October 6 – 8, 2021, Belgrade, Serbia, 516-523.
https://hdl.handle.net/21.15107/rcub_ristocar_757

Dosković V, Bogosavljević-Bošković S, Milošević B, Škrbić Z, Lukić M, Rakonjac S, Petričević V. Effects of genotype and protease enzyme supplementation on the primal carcass cuts of chickens. in Proceedings of the 13th International Symposium Modern Trends in Livestock Production, October 6 – 8, 2021, Belgrade, Serbia. 2021;:516-523.
https://hdl.handle.net/21.15107/rcub_ristocar_757 .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Milošević, Božidar, Škrbić, Zdenka, Lukić, Miloš, Rakonjac, Simeon, Petričević, Veselin, "Effects of genotype and protease enzyme supplementation on the primal carcass cuts of chickens" in Proceedings of the 13th International Symposium Modern Trends in Livestock Production, October 6 – 8, 2021, Belgrade, Serbia (2021):516-523,
https://hdl.handle.net/21.15107/rcub_ristocar_757 .

TY  - JOUR
AU  - Petričević, Veselin
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Petričević, Maja
AU  - Bogosavljević-Bošković, Snežana
AU  - Dosković, Vladimir
AU  - Rakonjac, Simeon
PY  - 2020
UR  - http://r.istocar.bg.ac.rs/handle/123456789/726
AB  - The study objective was to examine the effect of the addition of different concentrations of a mixture of three plants (garlic, mint
and rosemary) in the diet of broiler chickens on production and slaughter results. The mixture was formed by grinding plants
after drying and mixing them in a ratio of 1: 1: 1. The experiment was performed on 600 chickens divided into 4 groups with 3
replicates per group. The chickens were fed at will and the composition of the diet differed only in the amount of added mixture.
No mixture was added in control group (C). Group MIX-I chickens consumed a diet supplemented with 0.25% of the mixture,
group MIX-II diet contained 0.5% of the mixture supplement, while group MIX-III broilers received 0.75% of the mixture in their
diet. At the end of the experimental period, at the age of 42 days, the body weight of the chickens was measured. Mortality, feed
conversion and EPEF were determined. At the end of the experiment, 12 chickens (6 males and 6 females) were sacrificed by
random sampling from each group in order to determine slaughter results. The obtained results showed that the use of the
mixture of three plants had a positive effect on the production parameters. MIX-II group chickens had significantly higher
(p<0.01) body weights, better feed conversion and significantly higher (p<0.01) EPEF values compared with C group. No
significant differences in slaughter performances were found.
PB  - Faculty of Agronomy Čačak
T2  - Acta Agriculturae Serbica
T1  - The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens
VL  - 25
IS  - 50
SP  - 149
EP  - 152
DO  - 10.5937/AASer2050149P
ER  - 

@article{
author = "Petričević, Veselin and Lukić, Miloš and Škrbić, Zdenka and Petričević, Maja and Bogosavljević-Bošković, Snežana and Dosković, Vladimir and Rakonjac, Simeon",
year = "2020",
abstract = "The study objective was to examine the effect of the addition of different concentrations of a mixture of three plants (garlic, mint
and rosemary) in the diet of broiler chickens on production and slaughter results. The mixture was formed by grinding plants
after drying and mixing them in a ratio of 1: 1: 1. The experiment was performed on 600 chickens divided into 4 groups with 3
replicates per group. The chickens were fed at will and the composition of the diet differed only in the amount of added mixture.
No mixture was added in control group (C). Group MIX-I chickens consumed a diet supplemented with 0.25% of the mixture,
group MIX-II diet contained 0.5% of the mixture supplement, while group MIX-III broilers received 0.75% of the mixture in their
diet. At the end of the experimental period, at the age of 42 days, the body weight of the chickens was measured. Mortality, feed
conversion and EPEF were determined. At the end of the experiment, 12 chickens (6 males and 6 females) were sacrificed by
random sampling from each group in order to determine slaughter results. The obtained results showed that the use of the
mixture of three plants had a positive effect on the production parameters. MIX-II group chickens had significantly higher
(p<0.01) body weights, better feed conversion and significantly higher (p<0.01) EPEF values compared with C group. No
significant differences in slaughter performances were found.",
publisher = "Faculty of Agronomy Čačak",
journal = "Acta Agriculturae Serbica",
title = "The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens",
volume = "25",
number = "50",
pages = "149-152",
doi = "10.5937/AASer2050149P"
}

Petričević, V., Lukić, M., Škrbić, Z., Petričević, M., Bogosavljević-Bošković, S., Dosković, V.,& Rakonjac, S.. (2020). The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens. in Acta Agriculturae Serbica
Faculty of Agronomy Čačak., 25(50), 149-152.
https://doi.org/10.5937/AASer2050149P

Petričević V, Lukić M, Škrbić Z, Petričević M, Bogosavljević-Bošković S, Dosković V, Rakonjac S. The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens. in Acta Agriculturae Serbica. 2020;25(50):149-152.
doi:10.5937/AASer2050149P .

Petričević, Veselin, Lukić, Miloš, Škrbić, Zdenka, Petričević, Maja, Bogosavljević-Bošković, Snežana, Dosković, Vladimir, Rakonjac, Simeon, "The effect of a plant mixture (garlic, mint and rosemary) on production and slaughter indicators in broiler chickens" in Acta Agriculturae Serbica, 25, no. 50 (2020):149-152,
https://doi.org/10.5937/AASer2050149P . .

TY  - JOUR
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Tolimir, Nataša
PY  - 2020
UR  - http://r.istocar.bg.ac.rs/handle/123456789/711
AB  - The comparison of physical quality properties of table eggs of commercial hybrid Tetra SL and two native indigenous breeds of hens, Banat Naked Neck and Svrljig hen, was performed in conditions of alternative production in the pasture system in portable cages without the floor. The experiment was conducted during the vegetation period, at the age of hens of 53-57 weeks. In order to produce good quality eggs, the diet was designed with a complete mixture based on maize and soybean. In addition, constant availability of pastures was ensured. Egg sampling was performed in the morning and the initial egg quality was examined based on egg weight, shape index, egg white, egg yolk and shell quality parameters. Layer hens of the commercial hybrid Tetra SL had significantly higher egg weight and better internal egg quality (p<0.01) compared to hens of Banat Naked Neck and Svrljig hens, except for the colour of the yolk, which was more intense in the same feeding and breeding conditions and the age of laying hens, in eggs of native breeds (p<0.01). Native breeds in relation to the commercial hybrid had lighter shell colour (p<0.01). Deformation and egg shell thickness differed (p<0.01) between all three genotypes. The determined rank of layer hen genotypes for shell thickness was: Tetra SL, Banat Naked Neck, Svrljig hen. However, the breaking force was without statistically confirmed difference between hen genotypes.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Quality of eggs from pasture rearing layers of different genotypes
VL  - 36
IS  - 2
SP  - 181
EP  - 190
DO  - 10.2298/BAH2002181S
ER  - 

@article{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Dosković, Vladimir and Tolimir, Nataša",
year = "2020",
abstract = "The comparison of physical quality properties of table eggs of commercial hybrid Tetra SL and two native indigenous breeds of hens, Banat Naked Neck and Svrljig hen, was performed in conditions of alternative production in the pasture system in portable cages without the floor. The experiment was conducted during the vegetation period, at the age of hens of 53-57 weeks. In order to produce good quality eggs, the diet was designed with a complete mixture based on maize and soybean. In addition, constant availability of pastures was ensured. Egg sampling was performed in the morning and the initial egg quality was examined based on egg weight, shape index, egg white, egg yolk and shell quality parameters. Layer hens of the commercial hybrid Tetra SL had significantly higher egg weight and better internal egg quality (p<0.01) compared to hens of Banat Naked Neck and Svrljig hens, except for the colour of the yolk, which was more intense in the same feeding and breeding conditions and the age of laying hens, in eggs of native breeds (p<0.01). Native breeds in relation to the commercial hybrid had lighter shell colour (p<0.01). Deformation and egg shell thickness differed (p<0.01) between all three genotypes. The determined rank of layer hen genotypes for shell thickness was: Tetra SL, Banat Naked Neck, Svrljig hen. However, the breaking force was without statistically confirmed difference between hen genotypes.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Quality of eggs from pasture rearing layers of different genotypes",
volume = "36",
number = "2",
pages = "181-190",
doi = "10.2298/BAH2002181S"
}

Škrbić, Z., Lukić, M., Petričević, V., Bogosavljević-Bošković, S., Rakonjac, S., Dosković, V.,& Tolimir, N.. (2020). Quality of eggs from pasture rearing layers of different genotypes. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 36(2), 181-190.
https://doi.org/10.2298/BAH2002181S

Škrbić Z, Lukić M, Petričević V, Bogosavljević-Bošković S, Rakonjac S, Dosković V, Tolimir N. Quality of eggs from pasture rearing layers of different genotypes. in Biotechnology in Animal Husbandry. 2020;36(2):181-190.
doi:10.2298/BAH2002181S .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Dosković, Vladimir, Tolimir, Nataša, "Quality of eggs from pasture rearing layers of different genotypes" in Biotechnology in Animal Husbandry, 36, no. 2 (2020):181-190,
https://doi.org/10.2298/BAH2002181S . .

TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2020
UR  - http://r.istocar.bg.ac.rs/handle/123456789/715
AB  - This study evaluates the effect of protease-supplemented diets containing different crude
protein levels and sex on the weight and percent yields of individual meat classes (class I
meat: breast, drumsticks and thighs; class II meat: wings, and class III meat back and
pelvis) in Master Gris broilers (medium-growing strains). Chickens were fed maize-andsoybean-
based diets. The fattening period lasted 49 days. Broilers were allocated to 3 dietary
treatment groups: group C (standard diet, 0% protease), group E-I (0.2% protease, crude
protein level reduced by 4% compared to C) and group E-II (0.3% protease, 6% reduction in
crude protein compared to C). Results showed that no significant differences were observed in
the weight of class I and class II meat between dietary treatments (P>0.05). Reduction of
crude protein by 4% in diets supplemented with 0.2% protease affected the weight class III
meat in male chickens (P<0.05). The feeding treatments did not influence the percentage of
class I and class III (P>0.05), while significant differences were observed in percentage of
class II meat (between male broilers in C and E-I groups, P<0.05). The effect of sex was
significant on both weight and percentage of all three meat categories (P<0.05).
PB  - University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia
PB  - University of Belgrade, Serbia
PB  - Institute of Agricultural Economics, Serbia
PB  - University of Belgrade, Faculty of Agriculture, Serbia
PB  - Mediterranean Agronomic Institute of Bari (CIHEAM - IAMB) Italy
PB  - Institute for Animal Science, Ss. Cyril and Methodius University in Skopje, Macedonia
PB  - Academy of Engineering Sciences of Serbia, Serbia
PB  - Balkan Scientific Association of Agricultural Economics
C3  - Proceedings of the XI International Scientific Agricultural Symposium "Agrosym 2020"
T1  - Effect of protease added in food on chicken carcase quality
SP  - 829
EP  - 834
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_715
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Rakonjac, Simeon and Petričević, Veselin",
year = "2020",
abstract = "This study evaluates the effect of protease-supplemented diets containing different crude
protein levels and sex on the weight and percent yields of individual meat classes (class I
meat: breast, drumsticks and thighs; class II meat: wings, and class III meat back and
pelvis) in Master Gris broilers (medium-growing strains). Chickens were fed maize-andsoybean-
based diets. The fattening period lasted 49 days. Broilers were allocated to 3 dietary
treatment groups: group C (standard diet, 0% protease), group E-I (0.2% protease, crude
protein level reduced by 4% compared to C) and group E-II (0.3% protease, 6% reduction in
crude protein compared to C). Results showed that no significant differences were observed in
the weight of class I and class II meat between dietary treatments (P>0.05). Reduction of
crude protein by 4% in diets supplemented with 0.2% protease affected the weight class III
meat in male chickens (P<0.05). The feeding treatments did not influence the percentage of
class I and class III (P>0.05), while significant differences were observed in percentage of
class II meat (between male broilers in C and E-I groups, P<0.05). The effect of sex was
significant on both weight and percentage of all three meat categories (P<0.05).",
publisher = "University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia, University of Belgrade, Serbia, Institute of Agricultural Economics, Serbia, University of Belgrade, Faculty of Agriculture, Serbia, Mediterranean Agronomic Institute of Bari (CIHEAM - IAMB) Italy, Institute for Animal Science, Ss. Cyril and Methodius University in Skopje, Macedonia, Academy of Engineering Sciences of Serbia, Serbia, Balkan Scientific Association of Agricultural Economics",
journal = "Proceedings of the XI International Scientific Agricultural Symposium "Agrosym 2020"",
title = "Effect of protease added in food on chicken carcase quality",
pages = "829-834",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_715"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Rakonjac, S.,& Petričević, V.. (2020). Effect of protease added in food on chicken carcase quality. in Proceedings of the XI International Scientific Agricultural Symposium "Agrosym 2020"
University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia., 829-834.
https://hdl.handle.net/21.15107/rcub_ristocar_715

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Rakonjac S, Petričević V. Effect of protease added in food on chicken carcase quality. in Proceedings of the XI International Scientific Agricultural Symposium "Agrosym 2020". 2020;:829-834.
https://hdl.handle.net/21.15107/rcub_ristocar_715 .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Rakonjac, Simeon, Petričević, Veselin, "Effect of protease added in food on chicken carcase quality" in Proceedings of the XI International Scientific Agricultural Symposium "Agrosym 2020" (2020):829-834,
https://hdl.handle.net/21.15107/rcub_ristocar_715 .

TY  - JOUR
AU  - Rakonjac, Simeon
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Dosković, Vladimir
AU  - Petrović, Milun D.
AU  - Petričević, Veselin
PY  - 2019
UR  - http://r.istocar.bg.ac.rs/handle/123456789/672
AB  - The aim of this study was to compare the effect of two alternative rearing systems (floor and organic) on egg quality traits of New Hampshire laying hens in three different phases of the productive cycle (32, 48 and 72 weeks of age). Egg samples (15 eggs per group) were analysed for quality (egg weight, egg shape index, albumen height, Haugh unit, yolk colour) and chemical composition (dry matter, minerals, proteins and lipids). Egg weight, dry matter and protein content increased, while albumen height, Haugh unit and lipid content decreased with hen age (p≤0.05). Eggs from the floor rearing system had a higher shape index and lipid content compared to organic eggs (p≤0.05). Both factors and their interactions had a significant effect on yolk colour (p≤0.05).
PB  - University of Kragujevac Faculty of Agronomy in Čačak
T2  - Acta Agriculturae Serbica
T1  - Egg characteristics of New Hampshire laying hens from floor and organic rearing systems
VL  - XXIV
IS  - 48
SP  - 87
EP  - 95
DO  - 10.5937/AASer1948087R
ER  - 

@article{
author = "Rakonjac, Simeon and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Dosković, Vladimir and Petrović, Milun D. and Petričević, Veselin",
year = "2019",
abstract = "The aim of this study was to compare the effect of two alternative rearing systems (floor and organic) on egg quality traits of New Hampshire laying hens in three different phases of the productive cycle (32, 48 and 72 weeks of age). Egg samples (15 eggs per group) were analysed for quality (egg weight, egg shape index, albumen height, Haugh unit, yolk colour) and chemical composition (dry matter, minerals, proteins and lipids). Egg weight, dry matter and protein content increased, while albumen height, Haugh unit and lipid content decreased with hen age (p≤0.05). Eggs from the floor rearing system had a higher shape index and lipid content compared to organic eggs (p≤0.05). Both factors and their interactions had a significant effect on yolk colour (p≤0.05).",
publisher = "University of Kragujevac Faculty of Agronomy in Čačak",
journal = "Acta Agriculturae Serbica",
title = "Egg characteristics of New Hampshire laying hens from floor and organic rearing systems",
volume = "XXIV",
number = "48",
pages = "87-95",
doi = "10.5937/AASer1948087R"
}

Rakonjac, S., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Dosković, V., Petrović, M. D.,& Petričević, V.. (2019). Egg characteristics of New Hampshire laying hens from floor and organic rearing systems. in Acta Agriculturae Serbica
University of Kragujevac Faculty of Agronomy in Čačak., XXIV(48), 87-95.
https://doi.org/10.5937/AASer1948087R

Rakonjac S, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Dosković V, Petrović MD, Petričević V. Egg characteristics of New Hampshire laying hens from floor and organic rearing systems. in Acta Agriculturae Serbica. 2019;XXIV(48):87-95.
doi:10.5937/AASer1948087R .

Rakonjac, Simeon, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Dosković, Vladimir, Petrović, Milun D., Petričević, Veselin, "Egg characteristics of New Hampshire laying hens from floor and organic rearing systems" in Acta Agriculturae Serbica, XXIV, no. 48 (2019):87-95,
https://doi.org/10.5937/AASer1948087R . .

TY  - JOUR
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Milošević, Božidar
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2019
UR  - http://r.istocar.bg.ac.rs/handle/123456789/669
AB  - Pulmonary hypertension syndrome or ascites is a complex problem in poultry production. This disease has multiple causes, including genetic factors (genotype, sex) and non-genetic factors (altitude, improper egg incubation, ambient conditions in the poultry house, diet, etc.). Results from numerous studies have shown that improper diet and its interaction with other factors are among major reasons for the incidence of ascites symptoms. The objective of this study was to highlight major nutritional aspects related to pulmonary hypertension syndrome in broiler chickens. Therefore, particular attention should be paid to the dietary levels of antioxidant compounds, some minerals, energy and protein, feed forms, type of diet, and feed supplementation with ingredients which reduce the incidence of ascites.
PB  - University of Kragujevac Faculty of Agronomy in Čačak
T2  - Acta Agriculturae Serbica
T1  - Nutrition-related aspects of ascites in poultry
VL  - XXIV
IS  - 48
SP  - 119
EP  - 133
DO  - 10.5937/AASer1948119D
ER  - 

@article{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Milošević, Božidar and Rakonjac, Simeon and Petričević, Veselin",
year = "2019",
abstract = "Pulmonary hypertension syndrome or ascites is a complex problem in poultry production. This disease has multiple causes, including genetic factors (genotype, sex) and non-genetic factors (altitude, improper egg incubation, ambient conditions in the poultry house, diet, etc.). Results from numerous studies have shown that improper diet and its interaction with other factors are among major reasons for the incidence of ascites symptoms. The objective of this study was to highlight major nutritional aspects related to pulmonary hypertension syndrome in broiler chickens. Therefore, particular attention should be paid to the dietary levels of antioxidant compounds, some minerals, energy and protein, feed forms, type of diet, and feed supplementation with ingredients which reduce the incidence of ascites.",
publisher = "University of Kragujevac Faculty of Agronomy in Čačak",
journal = "Acta Agriculturae Serbica",
title = "Nutrition-related aspects of ascites in poultry",
volume = "XXIV",
number = "48",
pages = "119-133",
doi = "10.5937/AASer1948119D"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Milošević, B., Rakonjac, S.,& Petričević, V.. (2019). Nutrition-related aspects of ascites in poultry. in Acta Agriculturae Serbica
University of Kragujevac Faculty of Agronomy in Čačak., XXIV(48), 119-133.
https://doi.org/10.5937/AASer1948119D

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Milošević B, Rakonjac S, Petričević V. Nutrition-related aspects of ascites in poultry. in Acta Agriculturae Serbica. 2019;XXIV(48):119-133.
doi:10.5937/AASer1948119D .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Milošević, Božidar, Rakonjac, Simeon, Petričević, Veselin, "Nutrition-related aspects of ascites in poultry" in Acta Agriculturae Serbica, XXIV, no. 48 (2019):119-133,
https://doi.org/10.5937/AASer1948119D . .

TY  - CONF
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Tolimir, Nataša
PY  - 2019
UR  - http://r.istocar.bg.ac.rs/handle/123456789/633
AB  - Egg quality parameters of hybrid layers were analyzed by comparative testing of conventional cage and alternative housing systems: floor pen and mobile cages on the pasture. The analysis of the quality of eggs from the conventional cage and floor pen housing system was carried out at the age of 42 to 44 weeks, and from the conventional cage and the mobile cage on pasture, in the period from 51 to 53 weeks of age. Each trial was organized in 3 repetitions in the 3 seven-day periods and 30 eggs per repetition, i.e. 90 per housing system were analyzed. The quality of 360 eggs in total was analyzed. The initial egg quality was studied based on the properties of the external and internal quality of eggs and eggshell quality. In the conditions of the same genetic of laying hens, the parameters of the egg quality that were significantly affected by the housing system are the egg weight, certain properties of eggshell quality (cleanliness, colour and weight), the ratio of the albumen and yolk, and the yolk colour. Significantly higher egg weight and a lower albumen to egg yolk ratio were recorded in eggs from alternative housing systems compared to the conventional cage system. Eggs from the floor system had a darker and dirtier egg shell compared to the conventional cage system. The eggshell weight and the yolk colour were significantly higher in eggs from mobile cages.
PB  - Institut za stočarstvo, Beograd
C3  - Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia
T1  - Egg quality of commercial layer hybrid kept in different housing systems
SP  - 625
EP  - 632
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_633
ER  - 

@conference{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Dosković, Vladimir and Tolimir, Nataša",
year = "2019",
abstract = "Egg quality parameters of hybrid layers were analyzed by comparative testing of conventional cage and alternative housing systems: floor pen and mobile cages on the pasture. The analysis of the quality of eggs from the conventional cage and floor pen housing system was carried out at the age of 42 to 44 weeks, and from the conventional cage and the mobile cage on pasture, in the period from 51 to 53 weeks of age. Each trial was organized in 3 repetitions in the 3 seven-day periods and 30 eggs per repetition, i.e. 90 per housing system were analyzed. The quality of 360 eggs in total was analyzed. The initial egg quality was studied based on the properties of the external and internal quality of eggs and eggshell quality. In the conditions of the same genetic of laying hens, the parameters of the egg quality that were significantly affected by the housing system are the egg weight, certain properties of eggshell quality (cleanliness, colour and weight), the ratio of the albumen and yolk, and the yolk colour. Significantly higher egg weight and a lower albumen to egg yolk ratio were recorded in eggs from alternative housing systems compared to the conventional cage system. Eggs from the floor system had a darker and dirtier egg shell compared to the conventional cage system. The eggshell weight and the yolk colour were significantly higher in eggs from mobile cages.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia",
title = "Egg quality of commercial layer hybrid kept in different housing systems",
pages = "625-632",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_633"
}

Škrbić, Z., Lukić, M., Petričević, V., Bogosavljević-Bošković, S., Rakonjac, S., Dosković, V.,& Tolimir, N.. (2019). Egg quality of commercial layer hybrid kept in different housing systems. in Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia
Institut za stočarstvo, Beograd., 625-632.
https://hdl.handle.net/21.15107/rcub_ristocar_633

Škrbić Z, Lukić M, Petričević V, Bogosavljević-Bošković S, Rakonjac S, Dosković V, Tolimir N. Egg quality of commercial layer hybrid kept in different housing systems. in Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia. 2019;:625-632.
https://hdl.handle.net/21.15107/rcub_ristocar_633 .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Dosković, Vladimir, Tolimir, Nataša, "Egg quality of commercial layer hybrid kept in different housing systems" in Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia (2019):625-632,
https://hdl.handle.net/21.15107/rcub_ristocar_633 .

TY  - CONF
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Perić, Lidija
AU  - Škrbić, Zdenka
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2019
UR  - http://r.istocar.bg.ac.rs/handle/123456789/637
AB  - This study evaluates the effect of protease-supplemented diets containing different crude protein levels, sex and length of the fattening period on the weight and percentage yield of primal cuts in Cobb 500 broilers. Chickens were fed maize-and-soybean-based diets. Fattening periods lasted 49 and 63 days. The results showed that the recommended crude protein reduction by 4% in diets
supplemented with 0.2% protease had no effect on the weight and percentage yield of primal cuts (P>0.05), while the effect of broiler sex and slaughter age on the studied carcass quality parameters was significant (P<0.05).
PB  - Institute for Animal Husbandry, Belgrade
C3  - Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia
T1  - Meat quality of broilers in an extended fattening period
SP  - 618
EP  - 624
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_637
ER  - 

@conference{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Perić, Lidija and Škrbić, Zdenka and Rakonjac, Simeon and Petričević, Veselin",
year = "2019",
abstract = "This study evaluates the effect of protease-supplemented diets containing different crude protein levels, sex and length of the fattening period on the weight and percentage yield of primal cuts in Cobb 500 broilers. Chickens were fed maize-and-soybean-based diets. Fattening periods lasted 49 and 63 days. The results showed that the recommended crude protein reduction by 4% in diets
supplemented with 0.2% protease had no effect on the weight and percentage yield of primal cuts (P>0.05), while the effect of broiler sex and slaughter age on the studied carcass quality parameters was significant (P<0.05).",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia",
title = "Meat quality of broilers in an extended fattening period",
pages = "618-624",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_637"
}

Dosković, V., Bogosavljević-Bošković, S., Perić, L., Škrbić, Z., Rakonjac, S.,& Petričević, V.. (2019). Meat quality of broilers in an extended fattening period. in Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia
Institute for Animal Husbandry, Belgrade., 618-624.
https://hdl.handle.net/21.15107/rcub_ristocar_637

Dosković V, Bogosavljević-Bošković S, Perić L, Škrbić Z, Rakonjac S, Petričević V. Meat quality of broilers in an extended fattening period. in Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia. 2019;:618-624.
https://hdl.handle.net/21.15107/rcub_ristocar_637 .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Perić, Lidija, Škrbić, Zdenka, Rakonjac, Simeon, Petričević, Veselin, "Meat quality of broilers in an extended fattening period" in Proceedings of the 12th International Symposium „Modern Trends in Livestock Production“, October 9-11, 2019, Belgrade, Serbia (2019):618-624,
https://hdl.handle.net/21.15107/rcub_ristocar_637 .

TY  - JOUR
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Bogosavljević-Bošković, Snežana
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Tolimir, Nataša
PY  - 2019
UR  - http://r.istocar.bg.ac.rs/handle/123456789/627
AB  - Abstract: The possibility for use of high light intensity in broiler production management to improve the health of broilers’ legs was examined in a study aiming to determine the effect of two levels of light intensity in different stocking densities of broiler chickens. The study was carried out on 1200 Ross 308 broilers according to a random block system with 6 treatments (2 x 3 factorial design) and 4 replicates per treatment. The examined light intensity levels of 150 lx (high light intensity-HLI) and 20 lx (low light intensity-LLI) were applied to 3 stocking densities of broilers: 10, 13 and 15 birds/m2 . Scoring of foot pad (FP) and hock burns (HB) was carried out on the 42nd day, on a sample of 240 broilers. Osteometric and biomechanical measurements on tibia were performed after slaughtering and primary processing, on a sample of 72 broilers. The high level intensity of light exerted no significant effect on the development and firmness of the tibia of broilers grown in the densities of 10, 13 and 15 birds/m2 . There are indications that in the highest studied stocking density the increased light intensity can improve the individual properties of tibia. The differences in the average assessment of hock burns were concluded to be the result of the stocking density that was observed only in conditions of the increased intensity of light. The average score of foot pad lesions was under the significant main effect of both investigated factors. The differences in the average FP estimation between the light intensity treatments were confirmed in the stocking density of 13 birds/m2.

Rezime:Mogućnost upotrebe svetlosti jačeg intenziteta u menadžmentu brojlerske proizvodnje za poboljšanje zdravlja nogu brojlera, ispitana je u ogledu sa ciljem utvrđivanja efekta dva nivoa intenziteta svetlosti u različitim gustinama naseljenosti brojlerskih pilića. Istraživanje je sprovedeno na 1200 Ross 308 brojlera po slučajnom blok sistemu sa 6 tretmana (2 x 3 faktorijalni ogled) i 4 ponavljanja. Ispitivani nivoi intenziteta svetlosti 150 lx (HLI) i 20 lx (LLI) su primenjeni u 3 gustine naseljenosti brojlera: 10, 13 i 15 birds/m2 . Procena lezija na tabanskom jastučiću (FP) i skočnom zglobu (HB) je izvršena 42. dana, na uzorku od 240 brojlera. Osteometrijska i biomehanička merenja na tibiji su izvršena nakon klanja i obrade, na uzorku od 72 brojlera. Svetlost jačeg intenziteta nije uslovila signifikantan efekat na razvoj i čvrstoću tibije brojlera gajenih u gustinama naseljenosti 10, 13 i 15 grla/m2 . Postoje indicije da u najvećoj ispitivanoj gustini naseljenosti, svetlost jačeg intenziteta može poboljšati pojedine osobine tibije. Razlike u prosečnoj oceni HB utvrđene su kao rezultat efekta gustine naseljenosti koji je ispoljen samo u uslovima jačeg intenziteta svetlosti. Prosečna ocena FP lezija je bila pod značajnim glavnim (main) efektom oba ispitivana faktora. Razlike u prosečnoj oceni FP između tretmana intenziteta svetlosti potvrđene su u gustini naseljenosti 13 grla/m2 .
T2  - Biotechnology in Animal Husbandry
T1  - Effects of light intensity in different stocking densities on tibial measurements and incidence of lesions in broilers
VL  - 35
IS  - 3
SP  - 243
EP  - 252
DO  - 10.2298/BAH1903243S
ER  - 

@article{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Bogosavljević-Bošković, Snežana and Rakonjac, Simeon and Dosković, Vladimir and Tolimir, Nataša",
year = "2019",
abstract = "Abstract: The possibility for use of high light intensity in broiler production management to improve the health of broilers’ legs was examined in a study aiming to determine the effect of two levels of light intensity in different stocking densities of broiler chickens. The study was carried out on 1200 Ross 308 broilers according to a random block system with 6 treatments (2 x 3 factorial design) and 4 replicates per treatment. The examined light intensity levels of 150 lx (high light intensity-HLI) and 20 lx (low light intensity-LLI) were applied to 3 stocking densities of broilers: 10, 13 and 15 birds/m2 . Scoring of foot pad (FP) and hock burns (HB) was carried out on the 42nd day, on a sample of 240 broilers. Osteometric and biomechanical measurements on tibia were performed after slaughtering and primary processing, on a sample of 72 broilers. The high level intensity of light exerted no significant effect on the development and firmness of the tibia of broilers grown in the densities of 10, 13 and 15 birds/m2 . There are indications that in the highest studied stocking density the increased light intensity can improve the individual properties of tibia. The differences in the average assessment of hock burns were concluded to be the result of the stocking density that was observed only in conditions of the increased intensity of light. The average score of foot pad lesions was under the significant main effect of both investigated factors. The differences in the average FP estimation between the light intensity treatments were confirmed in the stocking density of 13 birds/m2.

Rezime:Mogućnost upotrebe svetlosti jačeg intenziteta u menadžmentu brojlerske proizvodnje za poboljšanje zdravlja nogu brojlera, ispitana je u ogledu sa ciljem utvrđivanja efekta dva nivoa intenziteta svetlosti u različitim gustinama naseljenosti brojlerskih pilića. Istraživanje je sprovedeno na 1200 Ross 308 brojlera po slučajnom blok sistemu sa 6 tretmana (2 x 3 faktorijalni ogled) i 4 ponavljanja. Ispitivani nivoi intenziteta svetlosti 150 lx (HLI) i 20 lx (LLI) su primenjeni u 3 gustine naseljenosti brojlera: 10, 13 i 15 birds/m2 . Procena lezija na tabanskom jastučiću (FP) i skočnom zglobu (HB) je izvršena 42. dana, na uzorku od 240 brojlera. Osteometrijska i biomehanička merenja na tibiji su izvršena nakon klanja i obrade, na uzorku od 72 brojlera. Svetlost jačeg intenziteta nije uslovila signifikantan efekat na razvoj i čvrstoću tibije brojlera gajenih u gustinama naseljenosti 10, 13 i 15 grla/m2 . Postoje indicije da u najvećoj ispitivanoj gustini naseljenosti, svetlost jačeg intenziteta može poboljšati pojedine osobine tibije. Razlike u prosečnoj oceni HB utvrđene su kao rezultat efekta gustine naseljenosti koji je ispoljen samo u uslovima jačeg intenziteta svetlosti. Prosečna ocena FP lezija je bila pod značajnim glavnim (main) efektom oba ispitivana faktora. Razlike u prosečnoj oceni FP između tretmana intenziteta svetlosti potvrđene su u gustini naseljenosti 13 grla/m2 .",
journal = "Biotechnology in Animal Husbandry",
title = "Effects of light intensity in different stocking densities on tibial measurements and incidence of lesions in broilers",
volume = "35",
number = "3",
pages = "243-252",
doi = "10.2298/BAH1903243S"
}

Škrbić, Z., Lukić, M., Petričević, V., Bogosavljević-Bošković, S., Rakonjac, S., Dosković, V.,& Tolimir, N.. (2019). Effects of light intensity in different stocking densities on tibial measurements and incidence of lesions in broilers. in Biotechnology in Animal Husbandry, 35(3), 243-252.
https://doi.org/10.2298/BAH1903243S

Škrbić Z, Lukić M, Petričević V, Bogosavljević-Bošković S, Rakonjac S, Dosković V, Tolimir N. Effects of light intensity in different stocking densities on tibial measurements and incidence of lesions in broilers. in Biotechnology in Animal Husbandry. 2019;35(3):243-252.
doi:10.2298/BAH1903243S .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Bogosavljević-Bošković, Snežana, Rakonjac, Simeon, Dosković, Vladimir, Tolimir, Nataša, "Effects of light intensity in different stocking densities on tibial measurements and incidence of lesions in broilers" in Biotechnology in Animal Husbandry, 35, no. 3 (2019):243-252,
https://doi.org/10.2298/BAH1903243S . .

TY  - JOUR
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Bogosavljević-Bošković, Snežana
AU  - Tolimir, Nataša
AU  - Dosković, Vladimir
AU  - Rakonjac, Simeon
PY  - 2018
UR  - http://r.istocar.bg.ac.rs/handle/123456789/564
AB  - In order to determine the effect of intensity of light and stocking density, as well as the interaction of light intensity x stocking density on body weight and individual carcass traits, an experiment was performed on 1200 broilers of the Ross 308 genotype. The investigated factors were the intensity of light (LI): 20 lx (K) ; 150 lx (O) and stocking density (SD): 10 broilers/m2 (A); 13 broilers/m2 (B); 15 broilers/m2 (C), in 4 repetitions. The light source was incandescent bulbs of adequate intensity and a light program 16L: 4D: 2L: 2D was applied. Broiler body weight was controlled on 11th, 21st, 35th and 42nd day, by individual measurement of all chickens in the trial. The average sample containing 12 chickens per treatment with equal gender representation (total of 72 broilers) was used to study the slaughter quality of carcasses based on the parameters of absolute and relative yield of more valuable carcass parts (breast, thighs and drumsticks) and meat in the more valuable parts of the carcass. The effect of light with different intensity on the body weight differed depending on the broiler rearing phase. The interaction effect of the intensity of light and stocking density on the body weight of broilers was confirmed in all stages of growing up to the age of 42 days. A higher intensity of light (150 lx) showed the potential to alleviate the negative effects of higher stocking density (15 broilers/m2 ) on the final body weight of the broiler. The carcass traits were not significantly affected by the intensity of the light, while the stocking density, as well as the intensity of the light x stocking density did influence the yield of whole breast and the yield of breast meat.
AB  - U cilju utvrđivanja efekta intenziteta svetlosti i gustine naseljenosti, kao i interakcije intenzitet svetlosti x gustina naseljenosti na telesnu masu i pojedine karakteristike trupa, sproveden je ogled na 1200 brojlera genotipa Ross 308. Ispitivani faktori su intenzitet svetlosti (LI): 20 lx (K); 150 lx (O) i gustina naseljenosti (SD): 10 grlo/m2 (A); 13 grlo/m2 (B); 15 grlo/m2 (C), u 4 ponavljanja. Izvor svetlosti su bile incandescent bulbs odgovarajućeg intenziteta i primenjen je svetlosni program 16L:4D:2L:2D. Telesna masa pilića je kontrolisana 11., 21., 35. i 42. dana, pojedinačnim merenjem svih pilića u ogledu. Na prosečnom uzorku od 12 pilića po tretmanu sa podjednakom zastupljenošću polova (ukupno 72 brojlera) izvršeno je ispitivanje klaničnog kvaliteta trupa na osnovu parametara apsolutnog i relativnog prinosa vrednijih delova trupa (grudi, bataci i karabataci) i mesa u vrednijim delovima trupa. Efekat svetlosti različitog intenziteta na telesnu masu se razlikovao u zavisnosti od faze gajenja brojlera. Interakcijski efekat intenziteta svetlosti i gustine naseljenosti na telesnu masu brojlera je potvrđen u svim fazama gajenja do starosti 42 dana. Veći intenzitet svetla (150 lx) je pokazao potencijal da ublaži negativne efekte većih gustina naseljenosti (15 grlo/m2 ) na završnu telesnu masu brojlera. Karakteristike trupa nisu bile pod značajnim glavnim efektom intenziteta svetlosti dok je gustina naseljenosti, kao i interakcija intenzitet svetlosti x gustina naseljenosti, uticala na prinos celih grudi i prinos mesa grudi.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Effects of intensity of light and stocking density on broiler body weight and yield of valuable carcass parts
T1  - Efekti intenziteta svetlosti i gustine naseljenosti na telesnu masu i prinose vrednijih delova trupa brojlera
VL  - 34
IS  - 1
SP  - 83
EP  - 93
DO  - 10.2298/bah1801083S
ER  - 

@article{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Bogosavljević-Bošković, Snežana and Tolimir, Nataša and Dosković, Vladimir and Rakonjac, Simeon",
year = "2018",
abstract = "In order to determine the effect of intensity of light and stocking density, as well as the interaction of light intensity x stocking density on body weight and individual carcass traits, an experiment was performed on 1200 broilers of the Ross 308 genotype. The investigated factors were the intensity of light (LI): 20 lx (K) ; 150 lx (O) and stocking density (SD): 10 broilers/m2 (A); 13 broilers/m2 (B); 15 broilers/m2 (C), in 4 repetitions. The light source was incandescent bulbs of adequate intensity and a light program 16L: 4D: 2L: 2D was applied. Broiler body weight was controlled on 11th, 21st, 35th and 42nd day, by individual measurement of all chickens in the trial. The average sample containing 12 chickens per treatment with equal gender representation (total of 72 broilers) was used to study the slaughter quality of carcasses based on the parameters of absolute and relative yield of more valuable carcass parts (breast, thighs and drumsticks) and meat in the more valuable parts of the carcass. The effect of light with different intensity on the body weight differed depending on the broiler rearing phase. The interaction effect of the intensity of light and stocking density on the body weight of broilers was confirmed in all stages of growing up to the age of 42 days. A higher intensity of light (150 lx) showed the potential to alleviate the negative effects of higher stocking density (15 broilers/m2 ) on the final body weight of the broiler. The carcass traits were not significantly affected by the intensity of the light, while the stocking density, as well as the intensity of the light x stocking density did influence the yield of whole breast and the yield of breast meat., U cilju utvrđivanja efekta intenziteta svetlosti i gustine naseljenosti, kao i interakcije intenzitet svetlosti x gustina naseljenosti na telesnu masu i pojedine karakteristike trupa, sproveden je ogled na 1200 brojlera genotipa Ross 308. Ispitivani faktori su intenzitet svetlosti (LI): 20 lx (K); 150 lx (O) i gustina naseljenosti (SD): 10 grlo/m2 (A); 13 grlo/m2 (B); 15 grlo/m2 (C), u 4 ponavljanja. Izvor svetlosti su bile incandescent bulbs odgovarajućeg intenziteta i primenjen je svetlosni program 16L:4D:2L:2D. Telesna masa pilića je kontrolisana 11., 21., 35. i 42. dana, pojedinačnim merenjem svih pilića u ogledu. Na prosečnom uzorku od 12 pilića po tretmanu sa podjednakom zastupljenošću polova (ukupno 72 brojlera) izvršeno je ispitivanje klaničnog kvaliteta trupa na osnovu parametara apsolutnog i relativnog prinosa vrednijih delova trupa (grudi, bataci i karabataci) i mesa u vrednijim delovima trupa. Efekat svetlosti različitog intenziteta na telesnu masu se razlikovao u zavisnosti od faze gajenja brojlera. Interakcijski efekat intenziteta svetlosti i gustine naseljenosti na telesnu masu brojlera je potvrđen u svim fazama gajenja do starosti 42 dana. Veći intenzitet svetla (150 lx) je pokazao potencijal da ublaži negativne efekte većih gustina naseljenosti (15 grlo/m2 ) na završnu telesnu masu brojlera. Karakteristike trupa nisu bile pod značajnim glavnim efektom intenziteta svetlosti dok je gustina naseljenosti, kao i interakcija intenzitet svetlosti x gustina naseljenosti, uticala na prinos celih grudi i prinos mesa grudi.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Effects of intensity of light and stocking density on broiler body weight and yield of valuable carcass parts, Efekti intenziteta svetlosti i gustine naseljenosti na telesnu masu i prinose vrednijih delova trupa brojlera",
volume = "34",
number = "1",
pages = "83-93",
doi = "10.2298/bah1801083S"
}

Škrbić, Z., Lukić, M., Petričević, V., Bogosavljević-Bošković, S., Tolimir, N., Dosković, V.,& Rakonjac, S.. (2018). Effects of intensity of light and stocking density on broiler body weight and yield of valuable carcass parts. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 34(1), 83-93.
https://doi.org/10.2298/bah1801083S

Škrbić Z, Lukić M, Petričević V, Bogosavljević-Bošković S, Tolimir N, Dosković V, Rakonjac S. Effects of intensity of light and stocking density on broiler body weight and yield of valuable carcass parts. in Biotechnology in Animal Husbandry. 2018;34(1):83-93.
doi:10.2298/bah1801083S .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Bogosavljević-Bošković, Snežana, Tolimir, Nataša, Dosković, Vladimir, Rakonjac, Simeon, "Effects of intensity of light and stocking density on broiler body weight and yield of valuable carcass parts" in Biotechnology in Animal Husbandry, 34, no. 1 (2018):83-93,
https://doi.org/10.2298/bah1801083S . .

TY  - JOUR
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Đoković, Radojica
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2017
UR  - http://r.istocar.bg.ac.rs/handle/123456789/512
AB  - This study analyses the effect of different protein levels in broiler feeds (supplemented with protease) and different lengths of fattening period on some parameters related to dressed carcass quality. Medium-growing Master Gris broiler chickens were used in a fattening trial lasting 63 days. At slaughter, dressing percentages and abdominal fat percentages were determined based on traditionally dressed carcass weights and abdominal fat weights of broilers at 49 and 63 days, and conformation indices were calculated based on absolute conformation measurements. Results showed that dietary treatment had an effect only on one relative conformation measurement - body weight/shank length in chickens at 49 days, as control broilers had higher values of this index compared to chickens receiving feeds containing reduced levels of crude protein and protease supplementation (0.2% or 0.3%). Length of fattening period affected almost all studied parameters, except breast angle, dressing percentage of traditionally dressed carcass and abdominal fat percentage.
AB  - U radu je analiziran uticaj različitog nivoa proteina u hrani za tov pilića (uz dodatak enzima proteaze) i dužine trajanja tova na neke parametre kvaliteta obrađenih trupova. U ogledu je korišćen medium-growing linijski hibrid Master Gris, a ogled je trajao 63 dana. Na liniji klanja, na osnovu mase klasično obrađenog trupa i mase abdominalne masti pilića uzrasta 49. i 63.dana tova utvrđen je randman klasimično obrađenog trupa i udeo abdominalne masti, a na osnovu apsolutnih mera konformacije izračunati su indeksi mera konformacije. Rezultati ogleda su pokazali da je uticaj ispitivanih obroka ispoljio efekat samo na jednu relativnu meru konformacije trupova - telesna masa/dužina piska kod pilića starosti 49.dana, jer su pilići iz kontrolne grupe imali veću vrednost ovog indeksa u odnosu na piliće koji su hranjeni smešama sa nižim nivoima sirovih proteina, uz dodatak enzima proteaze (0,2% ili 0,3%). Različita dužina trajanja tova uticala je na skoro sve ispitivane parametre, izuzev na veličinu grudnog ugla, randman klasično obrađenog trupa i udeo abdominalne masti.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Effect of dietary protein level and length of fattening period on dressing percentage and carcass conformation in broiler chickens
T1  - Uticaj nivoa proteina u hrani i dužine trajanja tova na randman i mere konformacije trupova pilića
VL  - 33
IS  - 2
SP  - 211
EP  - 219
DO  - 10.2298/BAH1702211D
ER  - 

@article{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Đoković, Radojica and Rakonjac, Simeon and Petričević, Veselin",
year = "2017",
abstract = "This study analyses the effect of different protein levels in broiler feeds (supplemented with protease) and different lengths of fattening period on some parameters related to dressed carcass quality. Medium-growing Master Gris broiler chickens were used in a fattening trial lasting 63 days. At slaughter, dressing percentages and abdominal fat percentages were determined based on traditionally dressed carcass weights and abdominal fat weights of broilers at 49 and 63 days, and conformation indices were calculated based on absolute conformation measurements. Results showed that dietary treatment had an effect only on one relative conformation measurement - body weight/shank length in chickens at 49 days, as control broilers had higher values of this index compared to chickens receiving feeds containing reduced levels of crude protein and protease supplementation (0.2% or 0.3%). Length of fattening period affected almost all studied parameters, except breast angle, dressing percentage of traditionally dressed carcass and abdominal fat percentage., U radu je analiziran uticaj različitog nivoa proteina u hrani za tov pilića (uz dodatak enzima proteaze) i dužine trajanja tova na neke parametre kvaliteta obrađenih trupova. U ogledu je korišćen medium-growing linijski hibrid Master Gris, a ogled je trajao 63 dana. Na liniji klanja, na osnovu mase klasično obrađenog trupa i mase abdominalne masti pilića uzrasta 49. i 63.dana tova utvrđen je randman klasimično obrađenog trupa i udeo abdominalne masti, a na osnovu apsolutnih mera konformacije izračunati su indeksi mera konformacije. Rezultati ogleda su pokazali da je uticaj ispitivanih obroka ispoljio efekat samo na jednu relativnu meru konformacije trupova - telesna masa/dužina piska kod pilića starosti 49.dana, jer su pilići iz kontrolne grupe imali veću vrednost ovog indeksa u odnosu na piliće koji su hranjeni smešama sa nižim nivoima sirovih proteina, uz dodatak enzima proteaze (0,2% ili 0,3%). Različita dužina trajanja tova uticala je na skoro sve ispitivane parametre, izuzev na veličinu grudnog ugla, randman klasično obrađenog trupa i udeo abdominalne masti.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Effect of dietary protein level and length of fattening period on dressing percentage and carcass conformation in broiler chickens, Uticaj nivoa proteina u hrani i dužine trajanja tova na randman i mere konformacije trupova pilića",
volume = "33",
number = "2",
pages = "211-219",
doi = "10.2298/BAH1702211D"
}

Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Đoković, R., Rakonjac, S.,& Petričević, V.. (2017). Effect of dietary protein level and length of fattening period on dressing percentage and carcass conformation in broiler chickens. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 33(2), 211-219.
https://doi.org/10.2298/BAH1702211D

Dosković V, Bogosavljević-Bošković S, Škrbić Z, Đoković R, Rakonjac S, Petričević V. Effect of dietary protein level and length of fattening period on dressing percentage and carcass conformation in broiler chickens. in Biotechnology in Animal Husbandry. 2017;33(2):211-219.
doi:10.2298/BAH1702211D .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Đoković, Radojica, Rakonjac, Simeon, Petričević, Veselin, "Effect of dietary protein level and length of fattening period on dressing percentage and carcass conformation in broiler chickens" in Biotechnology in Animal Husbandry, 33, no. 2 (2017):211-219,
https://doi.org/10.2298/BAH1702211D . .

TY  - JOUR
AU  - Rakonjac, Simeon
AU  - Bogosavljević-Bošković, Snežana
AU  - Škrbić, Zdenka
AU  - Perić, Lidija
AU  - Dosković, Vladimir
AU  - Petrović, Milun D.
AU  - Petričević, Veselin
PY  - 2017
UR  - http://r.istocar.bg.ac.rs/handle/123456789/544
AB  - The aim of this study was to evaluate the effect of rearing system, genotype and hens age on egg weight and eggs components share. The tested rearing systems were the floor and organic, and tested genotypes were Isa Brown hybrid and New Hampshire breed. Eggs were collected for analyses three times in production cycle (32 weeks hens age, 48 weeks hens age, and 72 weeks hens age). In these samples (fifteen eggs per group, eggs were one day old) were investigated: egg weight, albumen share, yolk share and shell share. Egg weight was increased with hens age. Also, the interaction between the genotype and hens age was found, so the New Hampshire eggs in 32 weeks had less weight then Isa Brown eggs (p≤0.05), while in the 48 and 72 weeks this difference was lost (p≥0.05). The share of egg albumen and yolk was significantly affected by the rearing system, genotype and hens age (p≤0.05). Floor produced eggs had a lower proportion of albumen and a higher proportion of yolk compared to organic eggs. New Hampshire eggs had a higher content of yolk and the smaller content of albumen compared to Isa Brown eggs (p≤0.05). With hens age, the share of yolk was increased and albumen share was decreased. Interaction of all three studied factors - rearing system x genotype x hens age had the most important effect on the shell share.
AB  - Cilj ovog rada je bio da ispita uticaj sistema gajenja, genotipa i starosti kokoši nosilja na masu i udeo glavnih delova jaja. Ispitivani sistemi gajenja su bili podni i organski, a ispitivani genotipovi Isa Brown hibrid i New Hampshire rasa. Jaja su sakupljana za analizu tri puta za vreme proizvodnog ciklusa (kod 32-nedeljnih nosilja, 48-nedeljnih i 72-nedeljnih). Na ovim uzorcima (15 jaja po grupi, jaja stara jedan dan) su ispitivani: masa jaja, udeo belanca, udeo žumanca i udeo ljuske jaja. Masa jaja se povećavala sa starenjem nosilja. Takođe, interakcija genotip x starost nosilja je bila značajna, pa su New hampshire kokoši u 32. nedelji nosile jaja manje mase od Isa Brown hibrida (p≤0.05), dok tih razlika u 48. i 72. nedelji nije bilo (p≥0.05). Udeo belanca i žumanca je bio od značajnim uticajem sistema gajenja, genotipa i starosti nosilja (p≤0.05). Podno gajenje kokoši su nosile jaja koja su imala manji udeo belanca a veći udeo žumanca u poređenju sa organskim kokošima (p≥0.05). Jaja New Hampshire rase su imala manji udeo belanca a veći udeo žumanca u poređenju sa Isa Brown genotipom (p≥0.05). Sa starenjem kokoši, udeo žumanca se povećavao a udeo belanca smanjivao. Interakcija sva tri ispitivana faktora - sistema gajenja, genotipa i starosti nosilja je imala najznačajniji uticaj na udeo ljuske jaja.
PB  - Agronomski fakultet, Čačak
T2  - Acta agriculturae Serbica
T1  - The effect of the rearing system, genotype and laying hens age on the egg weight and share of main parts of eggs
T1  - Uticaj sistema gajenja, genotipa i starosti kokoši nosilja na masu jaja i udeo glavnih delova jaja
VL  - 22
IS  - 44
SP  - 185
EP  - 192
DO  - 10.5937/AASer1744185R
ER  - 

@article{
author = "Rakonjac, Simeon and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Perić, Lidija and Dosković, Vladimir and Petrović, Milun D. and Petričević, Veselin",
year = "2017",
abstract = "The aim of this study was to evaluate the effect of rearing system, genotype and hens age on egg weight and eggs components share. The tested rearing systems were the floor and organic, and tested genotypes were Isa Brown hybrid and New Hampshire breed. Eggs were collected for analyses three times in production cycle (32 weeks hens age, 48 weeks hens age, and 72 weeks hens age). In these samples (fifteen eggs per group, eggs were one day old) were investigated: egg weight, albumen share, yolk share and shell share. Egg weight was increased with hens age. Also, the interaction between the genotype and hens age was found, so the New Hampshire eggs in 32 weeks had less weight then Isa Brown eggs (p≤0.05), while in the 48 and 72 weeks this difference was lost (p≥0.05). The share of egg albumen and yolk was significantly affected by the rearing system, genotype and hens age (p≤0.05). Floor produced eggs had a lower proportion of albumen and a higher proportion of yolk compared to organic eggs. New Hampshire eggs had a higher content of yolk and the smaller content of albumen compared to Isa Brown eggs (p≤0.05). With hens age, the share of yolk was increased and albumen share was decreased. Interaction of all three studied factors - rearing system x genotype x hens age had the most important effect on the shell share., Cilj ovog rada je bio da ispita uticaj sistema gajenja, genotipa i starosti kokoši nosilja na masu i udeo glavnih delova jaja. Ispitivani sistemi gajenja su bili podni i organski, a ispitivani genotipovi Isa Brown hibrid i New Hampshire rasa. Jaja su sakupljana za analizu tri puta za vreme proizvodnog ciklusa (kod 32-nedeljnih nosilja, 48-nedeljnih i 72-nedeljnih). Na ovim uzorcima (15 jaja po grupi, jaja stara jedan dan) su ispitivani: masa jaja, udeo belanca, udeo žumanca i udeo ljuske jaja. Masa jaja se povećavala sa starenjem nosilja. Takođe, interakcija genotip x starost nosilja je bila značajna, pa su New hampshire kokoši u 32. nedelji nosile jaja manje mase od Isa Brown hibrida (p≤0.05), dok tih razlika u 48. i 72. nedelji nije bilo (p≥0.05). Udeo belanca i žumanca je bio od značajnim uticajem sistema gajenja, genotipa i starosti nosilja (p≤0.05). Podno gajenje kokoši su nosile jaja koja su imala manji udeo belanca a veći udeo žumanca u poređenju sa organskim kokošima (p≥0.05). Jaja New Hampshire rase su imala manji udeo belanca a veći udeo žumanca u poređenju sa Isa Brown genotipom (p≥0.05). Sa starenjem kokoši, udeo žumanca se povećavao a udeo belanca smanjivao. Interakcija sva tri ispitivana faktora - sistema gajenja, genotipa i starosti nosilja je imala najznačajniji uticaj na udeo ljuske jaja.",
publisher = "Agronomski fakultet, Čačak",
journal = "Acta agriculturae Serbica",
title = "The effect of the rearing system, genotype and laying hens age on the egg weight and share of main parts of eggs, Uticaj sistema gajenja, genotipa i starosti kokoši nosilja na masu jaja i udeo glavnih delova jaja",
volume = "22",
number = "44",
pages = "185-192",
doi = "10.5937/AASer1744185R"
}

Rakonjac, S., Bogosavljević-Bošković, S., Škrbić, Z., Perić, L., Dosković, V., Petrović, M. D.,& Petričević, V.. (2017). The effect of the rearing system, genotype and laying hens age on the egg weight and share of main parts of eggs. in Acta agriculturae Serbica
Agronomski fakultet, Čačak., 22(44), 185-192.
https://doi.org/10.5937/AASer1744185R

Rakonjac S, Bogosavljević-Bošković S, Škrbić Z, Perić L, Dosković V, Petrović MD, Petričević V. The effect of the rearing system, genotype and laying hens age on the egg weight and share of main parts of eggs. in Acta agriculturae Serbica. 2017;22(44):185-192.
doi:10.5937/AASer1744185R .

Rakonjac, Simeon, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Perić, Lidija, Dosković, Vladimir, Petrović, Milun D., Petričević, Veselin, "The effect of the rearing system, genotype and laying hens age on the egg weight and share of main parts of eggs" in Acta agriculturae Serbica, 22, no. 44 (2017):185-192,
https://doi.org/10.5937/AASer1744185R . .

TY  - JOUR
AU  - Petričević, Veselin
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Bogosavljević-Bošković, Snežana
AU  - Dosković, Vladimir
AU  - Rakonjac, Simeon
AU  - Petričević, Maja
PY  - 2016
UR  - http://r.istocar.bg.ac.rs/handle/123456789/495
AB  - The experiment of the supstitution of soybean meal with raw soybean in the final diet was carried out on Hubbard F15 chickens at the age of 35-42 days. The effect of different levels and varieties of raw soybeans in diets on carcass conformation and share of major carcass parts was determined in a two factorial experiment 2 x 5 (2 soybean varieties x 5 levels of raw grains in the mixture), ie a total of 10 dietery treatments. At the end of the trial, by a random sample method, 12 chickens (6 males and 6 females) from each group were sacrificed and examined. The results showed that the index of drumstick girth and share of drumstick were under significant (p (lt) 0.05) influence of the soybean varieties. The level of raw soybeans in diets had significant effect (p  (lt) 0.05) on the index of drumstick girth and on the absolute value of the breast depth and breast angle. Shares of breast and thighs of broiler chickens of both sexes were not significantly influenced by the studied factors. It was concluded that the share of raw soybean of 10, 15 and 20% in the final mixtures for broilers hinders the utilization of protein in the ration, resulting in poorer quality of chicken carcasses.
AB  - Ogled je izveden na pilićima hibrida Hubbard F15 u uzrastu od 35-42. dana. Efekat upotrebe različitog nivoa sirove soje u smešama na konformaciju trupa i udeo vrednijih delova trupa utvrđen je dvofaktorijalnim eksperimentom 2 x 5 (2 sorte soje x 5 nivoa učešća sirovog zrna u smeši) sa 10 tretmana ishrane. Na kraju ogleda metodom slučajnog uzorka iz svake grupe žrtvovano je po 12 pilića (6 muških i 6 ženskih) u cilju utvrđivanja mera konformacije i udela vrednijih delova trupa. Dobijeni rezultati su pokazali da je indeks obima bataka bio pod značajnim (p (lt) 0,05) uticajem sorte soje. Nivo sirove soje u smešama imao je značajnog uticaja (p (lt) 0,05) na indeks obima bataka kao i na apsolutnu vrednost dubine grudi i grudnog ugla. Udeo bataka je bio pod značajnim (p (lt) 0,05) uticajem sorte soje. Udeli grudi i karabataka brojlerskih pilića oba pola nisu bili pod značajnim uticajem ispitivanih faktora. Zaključeno je da učešće sirove soje od 10, 15 i 20% u završnim smešama za ishranu brojlerskih pilića otežava iskorišćavanje proteinskog dela obroka. što rezultira slabijim kvalitetom pilećih trupova.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - The effect of raw soybean in the final mixtures for broilers on the conformation measures and share of major carcass parts
T1  - Efekat upotrebe sirove soje u završnim smešama za ishranu brojlerskih pilića na mere konformacije i udele vrednijih delova trupa
VL  - 32
IS  - 1
SP  - 37
EP  - 44
DO  - 10.2298/BAH1601037P
ER  - 

@article{
author = "Petričević, Veselin and Lukić, Miloš and Škrbić, Zdenka and Bogosavljević-Bošković, Snežana and Dosković, Vladimir and Rakonjac, Simeon and Petričević, Maja",
year = "2016",
abstract = "The experiment of the supstitution of soybean meal with raw soybean in the final diet was carried out on Hubbard F15 chickens at the age of 35-42 days. The effect of different levels and varieties of raw soybeans in diets on carcass conformation and share of major carcass parts was determined in a two factorial experiment 2 x 5 (2 soybean varieties x 5 levels of raw grains in the mixture), ie a total of 10 dietery treatments. At the end of the trial, by a random sample method, 12 chickens (6 males and 6 females) from each group were sacrificed and examined. The results showed that the index of drumstick girth and share of drumstick were under significant (p (lt) 0.05) influence of the soybean varieties. The level of raw soybeans in diets had significant effect (p  (lt) 0.05) on the index of drumstick girth and on the absolute value of the breast depth and breast angle. Shares of breast and thighs of broiler chickens of both sexes were not significantly influenced by the studied factors. It was concluded that the share of raw soybean of 10, 15 and 20% in the final mixtures for broilers hinders the utilization of protein in the ration, resulting in poorer quality of chicken carcasses., Ogled je izveden na pilićima hibrida Hubbard F15 u uzrastu od 35-42. dana. Efekat upotrebe različitog nivoa sirove soje u smešama na konformaciju trupa i udeo vrednijih delova trupa utvrđen je dvofaktorijalnim eksperimentom 2 x 5 (2 sorte soje x 5 nivoa učešća sirovog zrna u smeši) sa 10 tretmana ishrane. Na kraju ogleda metodom slučajnog uzorka iz svake grupe žrtvovano je po 12 pilića (6 muških i 6 ženskih) u cilju utvrđivanja mera konformacije i udela vrednijih delova trupa. Dobijeni rezultati su pokazali da je indeks obima bataka bio pod značajnim (p (lt) 0,05) uticajem sorte soje. Nivo sirove soje u smešama imao je značajnog uticaja (p (lt) 0,05) na indeks obima bataka kao i na apsolutnu vrednost dubine grudi i grudnog ugla. Udeo bataka je bio pod značajnim (p (lt) 0,05) uticajem sorte soje. Udeli grudi i karabataka brojlerskih pilića oba pola nisu bili pod značajnim uticajem ispitivanih faktora. Zaključeno je da učešće sirove soje od 10, 15 i 20% u završnim smešama za ishranu brojlerskih pilića otežava iskorišćavanje proteinskog dela obroka. što rezultira slabijim kvalitetom pilećih trupova.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "The effect of raw soybean in the final mixtures for broilers on the conformation measures and share of major carcass parts, Efekat upotrebe sirove soje u završnim smešama za ishranu brojlerskih pilića na mere konformacije i udele vrednijih delova trupa",
volume = "32",
number = "1",
pages = "37-44",
doi = "10.2298/BAH1601037P"
}

Petričević, V., Lukić, M., Škrbić, Z., Bogosavljević-Bošković, S., Dosković, V., Rakonjac, S.,& Petričević, M.. (2016). The effect of raw soybean in the final mixtures for broilers on the conformation measures and share of major carcass parts. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 32(1), 37-44.
https://doi.org/10.2298/BAH1601037P

Petričević V, Lukić M, Škrbić Z, Bogosavljević-Bošković S, Dosković V, Rakonjac S, Petričević M. The effect of raw soybean in the final mixtures for broilers on the conformation measures and share of major carcass parts. in Biotechnology in Animal Husbandry. 2016;32(1):37-44.
doi:10.2298/BAH1601037P .

Petričević, Veselin, Lukić, Miloš, Škrbić, Zdenka, Bogosavljević-Bošković, Snežana, Dosković, Vladimir, Rakonjac, Simeon, Petričević, Maja, "The effect of raw soybean in the final mixtures for broilers on the conformation measures and share of major carcass parts" in Biotechnology in Animal Husbandry, 32, no. 1 (2016):37-44,
https://doi.org/10.2298/BAH1601037P . .

TY  - JOUR
AU  - Dosković, Vladimir
AU  - Bogosavljević-Bošković, Snežana
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Rakonjac, Simeon
AU  - Petričević, Veselin
PY  - 2016
UR  - http://r.istocar.bg.ac.rs/handle/123456789/492
AB  - This paper presents research results on the effect of protease on the dressing percentage of conventionally dressed carcass and body conformation in broiler chickens. Broiler diet was supplemented with 0.2% protease (group E-I) and 0.3% protease (group E-II), and protein content in the feed was reduced by 4% (E-I) and 6% (E-II) through a decrease in soybean meal content. Fast-growing Cobb 500 broilers were used for a 63-day fattening trial. Body conformation measurement included absolute carcass conformation measures (metatarsus length, keel length, breast depth, breast angle, thigh girth) and relative body conformation measures - conformation indices (body weight/metatarsus length, body weight/keel length, body weight/breast depth, body weight/thigh girth). Results showed a significant effect of sex on the dressing percentage of conventionally dressed carcass and all body conformation measures, whereas diet had a significant effect on the dressing percentage of conventionally dressed carcass and breast angle values.
AB  - U radu su prikazani rezultati ispitivanja enzima proteaze na randman klasično obrađenog trupa i konformaciju trupova pilića u tovu. Enzim proteaza dodat je u hranu za piliće u tovu u koncentraciji 0,2% (O-I grupa), odnosno 0,3% (0-II grupa), uz istovremeno smanjivanje sadržaja ukupnih proteina u smešama za 4% (OI grupa), odnosno 6% (O-II grupa), preko smanjenog učešća sojine sačme. U ogledu je korišćen brzorastući hibrid Cobb 500, a tov pilića trajao je 63 dana. Za ocenu konformacije trupova utvrđene su apsolutne mere konformacije trupa (dužina piska, dužina kobilice, dubina grudi, grudni ugao, obim bataka) i relativne mere konformacije trupova - indeksi mera konformacije (telesna masa/dužina piska, telesna masa/dužina kobilice, telesna masa/dubina grudi, telesna masa/obim bataka). Rezultati istraživanja su pokazali da je pol pilića imao značajan uticaj na randman klasično obrađenog trupa i na sve mere konformacije trupova, a da je ishrana pilića različitim formulacijama obroka imala signifikantan efekat na randman klasično obrađenog trupa i vrednost grudnog ugla pilića.
PB  - Institute for Animal Husbandry, Belgrade
T2  - Biotechnology in Animal Husbandry
T1  - Effect of dietary protease supplementation and sex on dressing percentage and body conformation in broilers
T1  - Uticaj proteaze dodate u hranu i pola na randman i konformaciju trupova tovnih pilića
VL  - 32
IS  - 2
SP  - 185
EP  - 193
DO  - 10.2298/BAH1602185D
ER  - 

@article{
author = "Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Lukić, Miloš and Škrbić, Zdenka and Rakonjac, Simeon and Petričević, Veselin",
year = "2016",
abstract = "This paper presents research results on the effect of protease on the dressing percentage of conventionally dressed carcass and body conformation in broiler chickens. Broiler diet was supplemented with 0.2% protease (group E-I) and 0.3% protease (group E-II), and protein content in the feed was reduced by 4% (E-I) and 6% (E-II) through a decrease in soybean meal content. Fast-growing Cobb 500 broilers were used for a 63-day fattening trial. Body conformation measurement included absolute carcass conformation measures (metatarsus length, keel length, breast depth, breast angle, thigh girth) and relative body conformation measures - conformation indices (body weight/metatarsus length, body weight/keel length, body weight/breast depth, body weight/thigh girth). Results showed a significant effect of sex on the dressing percentage of conventionally dressed carcass and all body conformation measures, whereas diet had a significant effect on the dressing percentage of conventionally dressed carcass and breast angle values., U radu su prikazani rezultati ispitivanja enzima proteaze na randman klasično obrađenog trupa i konformaciju trupova pilića u tovu. Enzim proteaza dodat je u hranu za piliće u tovu u koncentraciji 0,2% (O-I grupa), odnosno 0,3% (0-II grupa), uz istovremeno smanjivanje sadržaja ukupnih proteina u smešama za 4% (OI grupa), odnosno 6% (O-II grupa), preko smanjenog učešća sojine sačme. U ogledu je korišćen brzorastući hibrid Cobb 500, a tov pilića trajao je 63 dana. Za ocenu konformacije trupova utvrđene su apsolutne mere konformacije trupa (dužina piska, dužina kobilice, dubina grudi, grudni ugao, obim bataka) i relativne mere konformacije trupova - indeksi mera konformacije (telesna masa/dužina piska, telesna masa/dužina kobilice, telesna masa/dubina grudi, telesna masa/obim bataka). Rezultati istraživanja su pokazali da je pol pilića imao značajan uticaj na randman klasično obrađenog trupa i na sve mere konformacije trupova, a da je ishrana pilića različitim formulacijama obroka imala signifikantan efekat na randman klasično obrađenog trupa i vrednost grudnog ugla pilića.",
publisher = "Institute for Animal Husbandry, Belgrade",
journal = "Biotechnology in Animal Husbandry",
title = "Effect of dietary protease supplementation and sex on dressing percentage and body conformation in broilers, Uticaj proteaze dodate u hranu i pola na randman i konformaciju trupova tovnih pilića",
volume = "32",
number = "2",
pages = "185-193",
doi = "10.2298/BAH1602185D"
}

Dosković, V., Bogosavljević-Bošković, S., Lukić, M., Škrbić, Z., Rakonjac, S.,& Petričević, V.. (2016). Effect of dietary protease supplementation and sex on dressing percentage and body conformation in broilers. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade., 32(2), 185-193.
https://doi.org/10.2298/BAH1602185D

Dosković V, Bogosavljević-Bošković S, Lukić M, Škrbić Z, Rakonjac S, Petričević V. Effect of dietary protease supplementation and sex on dressing percentage and body conformation in broilers. in Biotechnology in Animal Husbandry. 2016;32(2):185-193.
doi:10.2298/BAH1602185D .

Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Lukić, Miloš, Škrbić, Zdenka, Rakonjac, Simeon, Petričević, Veselin, "Effect of dietary protease supplementation and sex on dressing percentage and body conformation in broilers" in Biotechnology in Animal Husbandry, 32, no. 2 (2016):185-193,
https://doi.org/10.2298/BAH1602185D . .