TY  - CONF
AU  - Petričević, Veselin
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Dosković, Vladimir
AU  - Rakonjac, Simeon
AU  - Petričević, Maja
AU  - Milenković, Danijel
PY  - 2024-03
UR  - http://r.istocar.bg.ac.rs/handle/123456789/989
AB  - This study aimed to explore how hybrid varieties impact broiler
chickens' production and slaughter performance. We applied standard rearing
techniques over a 42-day period. The trial involved a total of 420 broiler chickens
of the following hybrids: Cobb 500 and Ross 308. Weekly performance tests were
conducted, assessing average daily gain, feed consumption, feed conversion rate,
mortality, and European Poultry Efficiency Factor. After controlling for final
body weights on the 42nd day, a random sample of 12 broilers per genotype, with
an equal gender distribution, was selected for slaughter parameter analysis.
Following slaughter traits were determined: pre-slaughter weight of chickens,
slaughter yield, share of abdominal fat, chicken thigh circumference, and chest
angle. The results revealed no significant difference in food consumption between
the examined hybrids. Chickens of the Cobb 500 genotype exhibited significantly
higher (p<0.01) gain and a more favorable feed conversion rate. Due to its better
vitality, feed conversion rate, and gain, Cobb 500 chickens demonstrated
significantly higher (p<0.01) European Poultry Efficiency Factor values. In
contrast, Ross 308 chickens displayed statistically significantly lower (p<0.05)
slaughter yield and chest angle values. At the same time, the proportion of
abdominal fat and chicken thigh circumference showed no significant difference
between the tested hybrids.
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  - Comparative analysis of production and slaughter parameters of fast-growing broiler hybrids
SP  - 183
EP  - 192
DO  - 10.46793/SBT29.24VP
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_989
ER  - 

@conference{
author = "Petričević, Veselin and Lukić, Miloš and Škrbić, Zdenka and Dosković, Vladimir and Rakonjac, Simeon and Petričević, Maja and Milenković, Danijel",
year = "2024-03",
abstract = "This study aimed to explore how hybrid varieties impact broiler
chickens' production and slaughter performance. We applied standard rearing
techniques over a 42-day period. The trial involved a total of 420 broiler chickens
of the following hybrids: Cobb 500 and Ross 308. Weekly performance tests were
conducted, assessing average daily gain, feed consumption, feed conversion rate,
mortality, and European Poultry Efficiency Factor. After controlling for final
body weights on the 42nd day, a random sample of 12 broilers per genotype, with
an equal gender distribution, was selected for slaughter parameter analysis.
Following slaughter traits were determined: pre-slaughter weight of chickens,
slaughter yield, share of abdominal fat, chicken thigh circumference, and chest
angle. The results revealed no significant difference in food consumption between
the examined hybrids. Chickens of the Cobb 500 genotype exhibited significantly
higher (p<0.01) gain and a more favorable feed conversion rate. Due to its better
vitality, feed conversion rate, and gain, Cobb 500 chickens demonstrated
significantly higher (p<0.01) European Poultry Efficiency Factor values. In
contrast, Ross 308 chickens displayed statistically significantly lower (p<0.05)
slaughter yield and chest angle values. At the same time, the proportion of
abdominal fat and chicken thigh circumference showed no significant difference
between the tested hybrids.",
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 = "Comparative analysis of production and slaughter parameters of fast-growing broiler hybrids",
pages = "183-192",
doi = "10.46793/SBT29.24VP",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_989"
}

Petričević, V., Lukić, M., Škrbić, Z., Dosković, V., Rakonjac, S., Petričević, M.,& Milenković, D.. (2024-03). Comparative analysis of production and slaughter parameters of fast-growing broiler hybrids. in Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem
University of Kragujevac, Serbia., 183-192.
https://doi.org/10.46793/SBT29.24VP
https://hdl.handle.net/21.15107/rcub_ristocar_989

Petričević V, Lukić M, Škrbić Z, Dosković V, Rakonjac S, Petričević M, Milenković D. Comparative analysis of production and slaughter parameters of fast-growing broiler hybrids. in Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem. 2024;:183-192.
doi:10.46793/SBT29.24VP
https://hdl.handle.net/21.15107/rcub_ristocar_989 .

Petričević, Veselin, Lukić, Miloš, Škrbić, Zdenka, Dosković, Vladimir, Rakonjac, Simeon, Petričević, Maja, Milenković, Danijel, "Comparative analysis of production and slaughter parameters of fast-growing broiler hybrids" in Proceedings of the 2nd International Symposium On Biotechnology, XXIX Savetovanje o biotehnologiji sa međunarodnim učešćem (2024-03):183-192,
https://doi.org/10.46793/SBT29.24VP .,
https://hdl.handle.net/21.15107/rcub_ristocar_989 .

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  - Petričević, Veselin
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Petričević, Maja
AU  - Tolimir, Nataša
PY  - 2023-12-18
UR  - http://r.istocar.bg.ac.rs/handle/123456789/972
AB  - The aim of this research was to examine the influence of the year (production cycle) and laying age on the quality of eggs for consumption. Examination of certain properties of egg and shell quality was carried out over a period of three years continuously and in four evenly spaced time intervals (24, 35, 46, and 57 weeks of age). Determining the external quality of eggs included determining the weight and shape index. Examination of the internal quality of eggs included the determination of albumen height and Haugh units. At the same time, the quality of the eggshell involved the determination of the following properties: (weight, thickness, deformation, breaking force, and color of the shell). The obtained results showed that during three production cycles, the genetic progress of this hybrid was confirmed, which is primarily reflected in a statistically significantly higher (p<0.05) value of egg weight, egg white height, and Haugh's units in the third year compared to the first year examinations. Also, under the influence of this factor, statistically significantly higher values of weight and shell thickness and a darker shell color were determined in the third compared to the first year of research. No statistically significant differences were found for other examined parameters under the influence of this factor. In the presence of statistically significant influence (p<0.05), various laying ages were systematically examined for internal and external egg quality attributes alongside shell quality properties, excluding shell deformation. Egg weight increased significantly with increasing laying age, while shape index values, contrary to egg weight, decreased. The parameters of internal egg quality were worse with increasing laying age. Regarding the shell quality properties, it was found that the shell weight and thickness, similar to the egg weight, increased with the age of the layers, while the breaking force was found to be the lowest in the oldest layers. The interaction of both tested factors did not cause a statistically significant effect on tested egg quality traits.
PB  - Institute for Animal Husbandry, Belgrade-Zemun
T2  - Biotechnology in Animal Husbandry
T1  - Assessment of egg and eggshell quality: Insights from a three-year study on Isa Brown hybrid layers
VL  - 39
IS  - 2
SP  - 131
EP  - 140
DO  - 10.2298/BAH2302131P
ER  - 

@article{
author = "Petričević, Veselin and Škrbić, Zdenka and Lukić, Miloš and Rakonjac, Simeon and Dosković, Vladimir and Petričević, Maja and Tolimir, Nataša",
year = "2023-12-18",
abstract = "The aim of this research was to examine the influence of the year (production cycle) and laying age on the quality of eggs for consumption. Examination of certain properties of egg and shell quality was carried out over a period of three years continuously and in four evenly spaced time intervals (24, 35, 46, and 57 weeks of age). Determining the external quality of eggs included determining the weight and shape index. Examination of the internal quality of eggs included the determination of albumen height and Haugh units. At the same time, the quality of the eggshell involved the determination of the following properties: (weight, thickness, deformation, breaking force, and color of the shell). The obtained results showed that during three production cycles, the genetic progress of this hybrid was confirmed, which is primarily reflected in a statistically significantly higher (p<0.05) value of egg weight, egg white height, and Haugh's units in the third year compared to the first year examinations. Also, under the influence of this factor, statistically significantly higher values of weight and shell thickness and a darker shell color were determined in the third compared to the first year of research. No statistically significant differences were found for other examined parameters under the influence of this factor. In the presence of statistically significant influence (p<0.05), various laying ages were systematically examined for internal and external egg quality attributes alongside shell quality properties, excluding shell deformation. Egg weight increased significantly with increasing laying age, while shape index values, contrary to egg weight, decreased. The parameters of internal egg quality were worse with increasing laying age. Regarding the shell quality properties, it was found that the shell weight and thickness, similar to the egg weight, increased with the age of the layers, while the breaking force was found to be the lowest in the oldest layers. The interaction of both tested factors did not cause a statistically significant effect on tested egg quality traits.",
publisher = "Institute for Animal Husbandry, Belgrade-Zemun",
journal = "Biotechnology in Animal Husbandry",
title = "Assessment of egg and eggshell quality: Insights from a three-year study on Isa Brown hybrid layers",
volume = "39",
number = "2",
pages = "131-140",
doi = "10.2298/BAH2302131P"
}

Petričević, V., Škrbić, Z., Lukić, M., Rakonjac, S., Dosković, V., Petričević, M.,& Tolimir, N.. (2023-12-18). Assessment of egg and eggshell quality: Insights from a three-year study on Isa Brown hybrid layers. in Biotechnology in Animal Husbandry
Institute for Animal Husbandry, Belgrade-Zemun., 39(2), 131-140.
https://doi.org/10.2298/BAH2302131P

Petričević V, Škrbić Z, Lukić M, Rakonjac S, Dosković V, Petričević M, Tolimir N. Assessment of egg and eggshell quality: Insights from a three-year study on Isa Brown hybrid layers. in Biotechnology in Animal Husbandry. 2023;39(2):131-140.
doi:10.2298/BAH2302131P .

Petričević, Veselin, Škrbić, Zdenka, Lukić, Miloš, Rakonjac, Simeon, Dosković, Vladimir, Petričević, Maja, Tolimir, Nataša, "Assessment of egg and eggshell quality: Insights from a three-year study on Isa Brown hybrid layers" in Biotechnology in Animal Husbandry, 39, no. 2 (2023-12-18):131-140,
https://doi.org/10.2298/BAH2302131P . .

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  - Petričević, Veselin
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Petričević, Maja
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Milenković, Danijel
PY  - 2023-10
UR  - http://r.istocar.bg.ac.rs/handle/123456789/893
AB  - The goal of the research was to examine the effect of adding different concentrations of pollen to
broiler feed mixtures on the share of tissue in major carcass parts and the chemical composition of dark and
white meat. The research was carried out in the Institute for Animal Husbandry using Cobb 500 hybrid
chickens up to the age of 42 days. A total of 1200 day-old chicks of both sexes were divided into 5 groups.
There were 6 repetitions for each group. During the test, broilers were fed with two mixtures (starter and
finisher), food and water were ad libitum during the test, and the composition of the mixtures differed in the
amount of added pollen. No pollen was added to the control group (C). Chickens of the (I) group consumed
mixtures with the addition of 0.25% pollen, in (II) group 0.5% was added, in group (III) 0.75% was added,
while in group (IV) 1.0% pollen was added. At the end of the experiment, one bird was taken from each
treatment and of both sexes from each repetition using the random sample method, a total of 60 chickens,
from which after slaughter and dissection, the thighs and breast were taken, to determine the share of muscle,
fat and bone tissue and skin. After that, samples of thigh muscle tissue and breast were taken with the aim of
determining the chemical composition of dark and white meat. By processing the obtained data, significant
differences (p<0.05) were determined for the proportion of fat tissue in the thighs. Chickens of group III had
significantly lower (p<0.05) share of fat tissue in thighs compared to chickens of group I. The share of
muscle and bone tissue and skin did not differ under the influence of the examined factor. By processing the
obtained data for the chemical composition of dark and white meat of broiler chickens of both sexes, no
significant differences (p>0.05) were found in the content of water, fat, ash and protein under the influence
of different diets. The use of mixtures with different levels of pollen addition in the diet of broiler chickens
did not have a negative effect on the quality of chicken meat.
PB  - Institute for Animal Husbandry, Belgrade-Zemun
C3  - Book of abstracts of the 14th International Symposium „Modern trends in livestock production“
T1  - The influence of pollen in the chicken diet on the share of tissue in major carcass parts and on the chemical composition of dark and white meat
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_893
ER  - 

@conference{
author = "Petričević, Veselin and Lukić, Miloš and Škrbić, Zdenka and Petričević, Maja and Rakonjac, Simeon and Dosković, Vladimir and Milenković, Danijel",
year = "2023-10",
abstract = "The goal of the research was to examine the effect of adding different concentrations of pollen to
broiler feed mixtures on the share of tissue in major carcass parts and the chemical composition of dark and
white meat. The research was carried out in the Institute for Animal Husbandry using Cobb 500 hybrid
chickens up to the age of 42 days. A total of 1200 day-old chicks of both sexes were divided into 5 groups.
There were 6 repetitions for each group. During the test, broilers were fed with two mixtures (starter and
finisher), food and water were ad libitum during the test, and the composition of the mixtures differed in the
amount of added pollen. No pollen was added to the control group (C). Chickens of the (I) group consumed
mixtures with the addition of 0.25% pollen, in (II) group 0.5% was added, in group (III) 0.75% was added,
while in group (IV) 1.0% pollen was added. At the end of the experiment, one bird was taken from each
treatment and of both sexes from each repetition using the random sample method, a total of 60 chickens,
from which after slaughter and dissection, the thighs and breast were taken, to determine the share of muscle,
fat and bone tissue and skin. After that, samples of thigh muscle tissue and breast were taken with the aim of
determining the chemical composition of dark and white meat. By processing the obtained data, significant
differences (p<0.05) were determined for the proportion of fat tissue in the thighs. Chickens of group III had
significantly lower (p<0.05) share of fat tissue in thighs compared to chickens of group I. The share of
muscle and bone tissue and skin did not differ under the influence of the examined factor. By processing the
obtained data for the chemical composition of dark and white meat of broiler chickens of both sexes, no
significant differences (p>0.05) were found in the content of water, fat, ash and protein under the influence
of different diets. The use of mixtures with different levels of pollen addition in the diet of broiler chickens
did not have a negative effect on the quality of chicken meat.",
publisher = "Institute for Animal Husbandry, Belgrade-Zemun",
journal = "Book of abstracts of the 14th International Symposium „Modern trends in livestock production“",
title = "The influence of pollen in the chicken diet on the share of tissue in major carcass parts and on the chemical composition of dark and white meat",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_893"
}

Petričević, V., Lukić, M., Škrbić, Z., Petričević, M., Rakonjac, S., Dosković, V.,& Milenković, D.. (2023-10). The influence of pollen in the chicken diet on the share of tissue in major carcass parts and on the chemical composition of dark and white meat. in Book of abstracts of the 14th International Symposium „Modern trends in livestock production“
Institute for Animal Husbandry, Belgrade-Zemun., 67-67.
https://hdl.handle.net/21.15107/rcub_ristocar_893

Petričević V, Lukić M, Škrbić Z, Petričević M, Rakonjac S, Dosković V, Milenković D. The influence of pollen in the chicken diet on the share of tissue in major carcass parts and on the chemical composition of dark and white meat. in Book of abstracts of the 14th International Symposium „Modern trends in livestock production“. 2023;:67-67.
https://hdl.handle.net/21.15107/rcub_ristocar_893 .

Petričević, Veselin, Lukić, Miloš, Škrbić, Zdenka, Petričević, Maja, Rakonjac, Simeon, Dosković, Vladimir, Milenković, Danijel, "The influence of pollen in the chicken diet on the share of tissue in major carcass parts and on the chemical composition of dark and white meat" in Book of abstracts of the 14th International Symposium „Modern trends in livestock production“ (2023-10):67-67,
https://hdl.handle.net/21.15107/rcub_ristocar_893 .

TY  - JOUR
AU  - Stanišić, Nikola
AU  - Škrbić, Zdenka
AU  - Petričević, Veselin
AU  - Milenković, Danijel
AU  - Petričević, Maja
AU  - Gogić, Marija
AU  - Lukić, Miloš
PY  - 2023-03-30
UR  - http://r.istocar.bg.ac.rs/handle/123456789/862
AB  - The objective of the present trial was to evaluate the effects of nettle leaves (Urtica dioica) supplementation, broiler gender and muscle portion on meat fatty acid and mineral profiles. Prior to the trial, a total of 600 one-day-old Cobb 500 broiler chickens of both genders, equally, were randomly divided into three groups: a basal diet (control group) and a basal diet supplemented in the last two weeks of fattening with fresh nettle leaves (30 g/kg diet) or with oven dry nettle leaves (5 g/kg diet). After reaching 42 days of age, twenty birds per diet group were randomly selected (four birds per box, both genders equally) and slaughtered, and breasts and drumsticks were collected for analysis. The dry nettle supplementation increased the MUFA and lowered the PUFA, n-6 and n-6/n-3 ratio, mainly in female broilers (p < 0.05). Drumsticks had higher MUFA and PUFA and lower SFA and n-6/n-3 ratio compared to breast meat (p < 0.05). The addition of nettle to broiler diet increased Fe, Zn and Se and decreased Ca levels, mainly in drumsticks (p < 0.05). Furthermore, drumstick meat had more elements with proven health benefits, such as Fe, Zn, Ca and Mn, than breast meat. This study suggests that feeding Cobb 500 broilers with the addition of nettle leaves can significantly change meat fatty acid and mineral composition, but this effect differed between gender and portion.
PB  - MDPI
T2  - Agriculture
T1  - The Fatty Acid and Mineral Composition of Cobb 500 Broiler Meat Influenced by the Nettle (Urtica dioica) Dietary Supplementation, Broiler Gender and Muscle Portion
VL  - 13
IS  - 4
SP  - 799
DO  - 10.3390/agriculture13040799
ER  - 

@article{
author = "Stanišić, Nikola and Škrbić, Zdenka and Petričević, Veselin and Milenković, Danijel and Petričević, Maja and Gogić, Marija and Lukić, Miloš",
year = "2023-03-30",
abstract = "The objective of the present trial was to evaluate the effects of nettle leaves (Urtica dioica) supplementation, broiler gender and muscle portion on meat fatty acid and mineral profiles. Prior to the trial, a total of 600 one-day-old Cobb 500 broiler chickens of both genders, equally, were randomly divided into three groups: a basal diet (control group) and a basal diet supplemented in the last two weeks of fattening with fresh nettle leaves (30 g/kg diet) or with oven dry nettle leaves (5 g/kg diet). After reaching 42 days of age, twenty birds per diet group were randomly selected (four birds per box, both genders equally) and slaughtered, and breasts and drumsticks were collected for analysis. The dry nettle supplementation increased the MUFA and lowered the PUFA, n-6 and n-6/n-3 ratio, mainly in female broilers (p < 0.05). Drumsticks had higher MUFA and PUFA and lower SFA and n-6/n-3 ratio compared to breast meat (p < 0.05). The addition of nettle to broiler diet increased Fe, Zn and Se and decreased Ca levels, mainly in drumsticks (p < 0.05). Furthermore, drumstick meat had more elements with proven health benefits, such as Fe, Zn, Ca and Mn, than breast meat. This study suggests that feeding Cobb 500 broilers with the addition of nettle leaves can significantly change meat fatty acid and mineral composition, but this effect differed between gender and portion.",
publisher = "MDPI",
journal = "Agriculture",
title = "The Fatty Acid and Mineral Composition of Cobb 500 Broiler Meat Influenced by the Nettle (Urtica dioica) Dietary Supplementation, Broiler Gender and Muscle Portion",
volume = "13",
number = "4",
pages = "799",
doi = "10.3390/agriculture13040799"
}

Stanišić, N., Škrbić, Z., Petričević, V., Milenković, D., Petričević, M., Gogić, M.,& Lukić, M.. (2023-03-30). The Fatty Acid and Mineral Composition of Cobb 500 Broiler Meat Influenced by the Nettle (Urtica dioica) Dietary Supplementation, Broiler Gender and Muscle Portion. in Agriculture
MDPI., 13(4), 799.
https://doi.org/10.3390/agriculture13040799

Stanišić N, Škrbić Z, Petričević V, Milenković D, Petričević M, Gogić M, Lukić M. The Fatty Acid and Mineral Composition of Cobb 500 Broiler Meat Influenced by the Nettle (Urtica dioica) Dietary Supplementation, Broiler Gender and Muscle Portion. in Agriculture. 2023;13(4):799.
doi:10.3390/agriculture13040799 .

Stanišić, Nikola, Škrbić, Zdenka, Petričević, Veselin, Milenković, Danijel, Petričević, Maja, Gogić, Marija, Lukić, Miloš, "The Fatty Acid and Mineral Composition of Cobb 500 Broiler Meat Influenced by the Nettle (Urtica dioica) Dietary Supplementation, Broiler Gender and Muscle Portion" in Agriculture, 13, no. 4 (2023-03-30):799,
https://doi.org/10.3390/agriculture13040799 . .

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 . .

Tolimir, N., Milić, D., Škrbić, Z., Lukić, M., Perić, L., Petričević, V.,& Simić, D.. (2023). Novi tehnološki postupak produženja reproduktivnog ciklusa brojlerskih roditelja uz uvažavanje dobrobiti. in Institute for animal husbandry
Institute for Science Application in Agriculture..
https://hdl.handle.net/21.15107/rcub_ristocar_987

Tolimir N, Milić D, Škrbić Z, Lukić M, Perić L, Petričević V, Simić D. Novi tehnološki postupak produženja reproduktivnog ciklusa brojlerskih roditelja uz uvažavanje dobrobiti. in Institute for animal husbandry. 2023;.
https://hdl.handle.net/21.15107/rcub_ristocar_987 .

Tolimir, Nataša, Milić, Dragan, Škrbić, Zdenka, Lukić, Miloš, Perić, Lidija, Petričević, Veselin, Simić, Divna, "Novi tehnološki postupak produženja reproduktivnog ciklusa brojlerskih roditelja uz uvažavanje dobrobiti" in Institute for animal husbandry (2023),
https://hdl.handle.net/21.15107/rcub_ristocar_987 .

TY  - CONF
AU  - Tolimir, Nataša
AU  - Maslovarić, Marijana
AU  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Nedeljković-Trailović, Jelena
PY  - 2023
UR  - http://r.istocar.bg.ac.rs/handle/123456789/913
AB  - In the year when the already extended deadline for egg producers in Serbia to shift from cage
farming to hen housing systems expires, the aim of the study was to analyse the egg market in Belgrade, as the largest market in Serbia. The representation of eggs from different housing systems and production programs in 11 supermarkets, covering the majority of retail chains in Serbia, was examined. In addition, the survey of 247 consumers was conducted in order to determine their views on the housing system and the price of eggs. Results showed the presence of 9 egg producers on Belgrade market, 8 of which provided eggs from the cage system, 5 from the floor system, while 4 offered free-range eggs. Cage eggs were represented in all supermarkets (11), floor eggs in 9 supermarkets, free-range eggs in 6, eggs from the functional food program (ꞷ-3 enriched) in 7, and organic eggs in one supermarket. The analysis of the prices of eggs in
different supermarkets, showed that the price per egg from the cage system, for a package of 10 eggs, varied between 0.13 and 0.21 EUR for Grade M, and between 0.14 and 0.25 EUR for Grade L eggs. The price for floor eggs (Grade M) ranged between 0.17 and 0.25, free-range eggs 0.20 and 0.28, ꞷ-3 eggs 0.26 and 0.32 EUR, while it was 0.55 EUR for organic eggs. By comparing the average price of Grade M cage eggs (0.18 EUR), with eggs from other housing systems and production programs, it was found that the price of floor eggs was 25% higher, free-range eggs 41% higher, ꞷ-3 eggs 56% higher and eggs from organic production 206% higher, respectively. Housing system and the price of eggs, as factors affecting decision when purchasing eggs, were not important for 35.19%, and 34.07% of respondents in the survey, respectively. It can be concluded that eggs from the cage system are still the most represented in Belgrade supermarket, but, compared to the similar research from 2017, the supply of eggs from the floor and free-range housing systems has increased. This indicates that the changes in the regulation influenced the transition of egg producers to permitted housing systems. Supply of ꞷ-3 eggs is satisfactory, while other types of designer eggs are lacking. The supply of organic eggs in supermarkets is insufficient.
PB  - Institut za stočarstvo
C3  - 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts
T1  - Eggs from different housing systems and production programs on the market of the city of Belgrade
SP  - 69
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_913
ER  - 

@conference{
author = "Tolimir, Nataša and Maslovarić, Marijana and Škrbić, Zdenka and Lukić, Miloš and Nedeljković-Trailović, Jelena",
year = "2023",
abstract = "In the year when the already extended deadline for egg producers in Serbia to shift from cage
farming to hen housing systems expires, the aim of the study was to analyse the egg market in Belgrade, as the largest market in Serbia. The representation of eggs from different housing systems and production programs in 11 supermarkets, covering the majority of retail chains in Serbia, was examined. In addition, the survey of 247 consumers was conducted in order to determine their views on the housing system and the price of eggs. Results showed the presence of 9 egg producers on Belgrade market, 8 of which provided eggs from the cage system, 5 from the floor system, while 4 offered free-range eggs. Cage eggs were represented in all supermarkets (11), floor eggs in 9 supermarkets, free-range eggs in 6, eggs from the functional food program (ꞷ-3 enriched) in 7, and organic eggs in one supermarket. The analysis of the prices of eggs in
different supermarkets, showed that the price per egg from the cage system, for a package of 10 eggs, varied between 0.13 and 0.21 EUR for Grade M, and between 0.14 and 0.25 EUR for Grade L eggs. The price for floor eggs (Grade M) ranged between 0.17 and 0.25, free-range eggs 0.20 and 0.28, ꞷ-3 eggs 0.26 and 0.32 EUR, while it was 0.55 EUR for organic eggs. By comparing the average price of Grade M cage eggs (0.18 EUR), with eggs from other housing systems and production programs, it was found that the price of floor eggs was 25% higher, free-range eggs 41% higher, ꞷ-3 eggs 56% higher and eggs from organic production 206% higher, respectively. Housing system and the price of eggs, as factors affecting decision when purchasing eggs, were not important for 35.19%, and 34.07% of respondents in the survey, respectively. It can be concluded that eggs from the cage system are still the most represented in Belgrade supermarket, but, compared to the similar research from 2017, the supply of eggs from the floor and free-range housing systems has increased. This indicates that the changes in the regulation influenced the transition of egg producers to permitted housing systems. Supply of ꞷ-3 eggs is satisfactory, while other types of designer eggs are lacking. The supply of organic eggs in supermarkets is insufficient.",
publisher = "Institut za stočarstvo",
journal = "14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts",
title = "Eggs from different housing systems and production programs on the market of the city of Belgrade",
pages = "69-69",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_913"
}

Tolimir, N., Maslovarić, M., Škrbić, Z., Lukić, M.,& Nedeljković-Trailović, J.. (2023). Eggs from different housing systems and production programs on the market of the city of Belgrade. in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts
Institut za stočarstvo., 69-69.
https://hdl.handle.net/21.15107/rcub_ristocar_913

Tolimir N, Maslovarić M, Škrbić Z, Lukić M, Nedeljković-Trailović J. Eggs from different housing systems and production programs on the market of the city of Belgrade. in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts. 2023;:69-69.
https://hdl.handle.net/21.15107/rcub_ristocar_913 .

Tolimir, Nataša, Maslovarić, Marijana, Škrbić, Zdenka, Lukić, Miloš, Nedeljković-Trailović, Jelena, "Eggs from different housing systems and production programs on the market of the city of Belgrade" in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts (2023):69-69,
https://hdl.handle.net/21.15107/rcub_ristocar_913 .

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  - Škrbić, Zdenka
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Rakonjac, Simeon
AU  - Dosković, Vladimir
AU  - Tolimir, Nataša
AU  - Milenković, Danijel
PY  - 2023
UR  - http://r.istocar.bg.ac.rs/handle/123456789/911
AB  - The genotype of the hens, as well as the production system and the diet of the hens, determine the quality of the eggs that are best at the moment of oviposition. In addition to the initial quality of the eggs, the duration and conditions of storage are factors that determine the quality of the eggs that reach the consumer. The aim of the work was to determine the sustainability of the egg quality of the native Banat Naked Neck (BNN) hens and to compare it with the eggs of the ISA Brown (ISA) hybrid laying hens under the same conditions of production and storage. The eggs were stored in a refrigerator at a temperature of 8℃ for 2 or 4 weeks, and in accordance with the Rulebook on Egg Quality (2019). Eggs were sampled in 3 repetitions, and two groups were formed: storage time 2 weeks (ST2) and storage time 4 weeks (ST4) each with 90 eggs, i.e.
45 eggs per genotype and duration of storage. The analysis of the initial quality of BNN and ISA eggs showed differences (p<0.01) in the ratio of egg structural parts, that is, yolk and white, which were maintained throughout the entire storage period. The eggs of BNN had a higher share of egg yolk and a lower share of albumen compared to the eggs of ISA layers. Egg weight of BNN and ISA layers did not initially differ and was 62.06 g and 62.78 g, respectively. However, egg weight loss during the storage period was lower (p<0.01) in BNN (1.20% after 2 weeks and 2.66% after 4 weeks) compared to ISA eggs (1.98% after 2 weeks and 4.24% after 4 weeks). Albumen height and Haugh Units (HU) showed higher values initially and after two weeks of storage (p<0.01) in ISA laying eggs. After four weeks of storage, there were no significant (p>0.05) differences between eggs of BNN and ISA layers in terms of albumen height and HU. In accordance with the mentioned parameters of egg freshness, the pH value of the albumen was higher (p<0.01) in BNN hens after two weeks of egg storage. After four weeks of storage, these processes were more moderate and the determined differences between the eggs of BNN and ISA layers were at a lower
level of significance (p<0.05). In conclusion, BNN eggs during the storage period have more moderate processes of loss of freshness and egg weight compared to eggs of ISA layers, which after four weeks of storage brings them into an equal relationship in terms of quality, although the initial quality of eggs of ISA layers was better.
PB  - Institut za stočarstvo
C3  - 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts
T1  - Quality of eggs from Banat naked neck and ISA brown layers during storage
SP  - 70
EP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_911
ER  - 

@conference{
author = "Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Rakonjac, Simeon and Dosković, Vladimir and Tolimir, Nataša and Milenković, Danijel",
year = "2023",
abstract = "The genotype of the hens, as well as the production system and the diet of the hens, determine the quality of the eggs that are best at the moment of oviposition. In addition to the initial quality of the eggs, the duration and conditions of storage are factors that determine the quality of the eggs that reach the consumer. The aim of the work was to determine the sustainability of the egg quality of the native Banat Naked Neck (BNN) hens and to compare it with the eggs of the ISA Brown (ISA) hybrid laying hens under the same conditions of production and storage. The eggs were stored in a refrigerator at a temperature of 8℃ for 2 or 4 weeks, and in accordance with the Rulebook on Egg Quality (2019). Eggs were sampled in 3 repetitions, and two groups were formed: storage time 2 weeks (ST2) and storage time 4 weeks (ST4) each with 90 eggs, i.e.
45 eggs per genotype and duration of storage. The analysis of the initial quality of BNN and ISA eggs showed differences (p<0.01) in the ratio of egg structural parts, that is, yolk and white, which were maintained throughout the entire storage period. The eggs of BNN had a higher share of egg yolk and a lower share of albumen compared to the eggs of ISA layers. Egg weight of BNN and ISA layers did not initially differ and was 62.06 g and 62.78 g, respectively. However, egg weight loss during the storage period was lower (p<0.01) in BNN (1.20% after 2 weeks and 2.66% after 4 weeks) compared to ISA eggs (1.98% after 2 weeks and 4.24% after 4 weeks). Albumen height and Haugh Units (HU) showed higher values initially and after two weeks of storage (p<0.01) in ISA laying eggs. After four weeks of storage, there were no significant (p>0.05) differences between eggs of BNN and ISA layers in terms of albumen height and HU. In accordance with the mentioned parameters of egg freshness, the pH value of the albumen was higher (p<0.01) in BNN hens after two weeks of egg storage. After four weeks of storage, these processes were more moderate and the determined differences between the eggs of BNN and ISA layers were at a lower
level of significance (p<0.05). In conclusion, BNN eggs during the storage period have more moderate processes of loss of freshness and egg weight compared to eggs of ISA layers, which after four weeks of storage brings them into an equal relationship in terms of quality, although the initial quality of eggs of ISA layers was better.",
publisher = "Institut za stočarstvo",
journal = "14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts",
title = "Quality of eggs from Banat naked neck and ISA brown layers during storage",
pages = "70-70",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_911"
}

Škrbić, Z., Lukić, M., Petričević, V., Rakonjac, S., Dosković, V., Tolimir, N.,& Milenković, D.. (2023). Quality of eggs from Banat naked neck and ISA brown layers during storage. in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts
Institut za stočarstvo., 70-70.
https://hdl.handle.net/21.15107/rcub_ristocar_911

Škrbić Z, Lukić M, Petričević V, Rakonjac S, Dosković V, Tolimir N, Milenković D. Quality of eggs from Banat naked neck and ISA brown layers during storage. in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts. 2023;:70-70.
https://hdl.handle.net/21.15107/rcub_ristocar_911 .

Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Rakonjac, Simeon, Dosković, Vladimir, Tolimir, Nataša, Milenković, Danijel, "Quality of eggs from Banat naked neck and ISA brown layers during storage" in 14th International symposium “Modern trends in livestock production”, 4-6 October, Belgrade, Serbia, Book of abstracts (2023):70-70,
https://hdl.handle.net/21.15107/rcub_ristocar_911 .

TY  - JOUR
AU  - Vitorović, Duško
AU  - Božičković, Ivana
AU  - Lukić, Miloš
AU  - Relić, Renata
AU  - Škrbić, Zdenka
AU  - Petričević, Veselin
AU  - Lazarević Macanović, Mirjana
AU  - Krstić, Nikola
PY  - 2023
UR  - http://r.istocar.bg.ac.rs/handle/123456789/872
AB  - The first few weeks after broilers hatch are the period of most intense bone growthand development, and the time when they are most susceptible to the in fluence ofvarious external and internal factors. Research in the recent decades has focused on theinvolvement of melatonin in bone development during early life in chickens. Melatoninrelease from the pineal gland has a circadian rhythm, with the highest levels circulatingduring the night and decreasing during the light phase of the day. Various types oflighting are used in intensive broiler production. In this study, the effects of melatoninon the tibial structure and growth of broilers were investigated. During the first twoweeks of life, two groups of chickens were kept under continuous light and fed thesame diet, with the experimental group receiving melatonin in the amount of 0.03 g/kg of feed. The results obtained showed that the addition of melatonin in the diet hadpositive effects on the development and growth of the tibia, which was expressed ina signi ficantly greater thickness of the diaphysis and cortical bone of the diaphysis,higher breaking force and higher values of alkaline phosphatase activity. The corticalbone mineral density of the tibia did not differ signi ficantly between the groups ofchicken.
PB  - University of Belgrade - Faculty of Veterinary Medicine
T2  - Acta Veterinaria-Beograd
T1  - Tibia growth and development in broiler chicks reared under continuous light and melatonin dietary supplementation during the first two weeks of life
VL  - 73
IS  - 2
SP  - 262
EP  - 270
DO  - 10.2478/acve-2023-0020
ER  - 

@article{
author = "Vitorović, Duško and Božičković, Ivana and Lukić, Miloš and Relić, Renata and Škrbić, Zdenka and Petričević, Veselin and Lazarević Macanović, Mirjana and Krstić, Nikola",
year = "2023",
abstract = "The first few weeks after broilers hatch are the period of most intense bone growthand development, and the time when they are most susceptible to the in fluence ofvarious external and internal factors. Research in the recent decades has focused on theinvolvement of melatonin in bone development during early life in chickens. Melatoninrelease from the pineal gland has a circadian rhythm, with the highest levels circulatingduring the night and decreasing during the light phase of the day. Various types oflighting are used in intensive broiler production. In this study, the effects of melatoninon the tibial structure and growth of broilers were investigated. During the first twoweeks of life, two groups of chickens were kept under continuous light and fed thesame diet, with the experimental group receiving melatonin in the amount of 0.03 g/kg of feed. The results obtained showed that the addition of melatonin in the diet hadpositive effects on the development and growth of the tibia, which was expressed ina signi ficantly greater thickness of the diaphysis and cortical bone of the diaphysis,higher breaking force and higher values of alkaline phosphatase activity. The corticalbone mineral density of the tibia did not differ signi ficantly between the groups ofchicken.",
publisher = "University of Belgrade - Faculty of Veterinary Medicine",
journal = "Acta Veterinaria-Beograd",
title = "Tibia growth and development in broiler chicks reared under continuous light and melatonin dietary supplementation during the first two weeks of life",
volume = "73",
number = "2",
pages = "262-270",
doi = "10.2478/acve-2023-0020"
}

Vitorović, D., Božičković, I., Lukić, M., Relić, R., Škrbić, Z., Petričević, V., Lazarević Macanović, M.,& Krstić, N.. (2023). Tibia growth and development in broiler chicks reared under continuous light and melatonin dietary supplementation during the first two weeks of life. in Acta Veterinaria-Beograd
University of Belgrade - Faculty of Veterinary Medicine., 73(2), 262-270.
https://doi.org/10.2478/acve-2023-0020

Vitorović D, Božičković I, Lukić M, Relić R, Škrbić Z, Petričević V, Lazarević Macanović M, Krstić N. Tibia growth and development in broiler chicks reared under continuous light and melatonin dietary supplementation during the first two weeks of life. in Acta Veterinaria-Beograd. 2023;73(2):262-270.
doi:10.2478/acve-2023-0020 .

Vitorović, Duško, Božičković, Ivana, Lukić, Miloš, Relić, Renata, Škrbić, Zdenka, Petričević, Veselin, Lazarević Macanović, Mirjana, Krstić, Nikola, "Tibia growth and development in broiler chicks reared under continuous light and melatonin dietary supplementation during the first two weeks of life" in Acta Veterinaria-Beograd, 73, no. 2 (2023):262-270,
https://doi.org/10.2478/acve-2023-0020 . .

TY  - CONF
AU  - Lukić, Miloš
AU  - Stanišić, Nikola
AU  - Škrbić, Zdenka
AU  - Petričević, Veselin
AU  - Tolimir, Nataša
AU  - Dosković, Vladimir
AU  - Stamenić, Tamara
PY  - 2022-08
UR  - http://r.istocar.bg.ac.rs/handle/123456789/943
AB  - This experiment aimed to evaluate the effects of adding fresh or dry nettle (Urtica dioica L.) to broiler diets during the last week of fattening on proximate composition, fatty acid and mineral content of meat. The trial was performed on a total of 600 ROSS-308 unsexed day-old chickens, divided into 3 groups (C - Control group; FN - Fresh Nettle group; DN - Dry Nettle group). All broilers were bred and fed equally, with standard diets from age 1-42 days, except for the last seven days of fattening when in FN group was added daily to the feeders (on top) 20g/chicken freshly collected, blanched and chopped nettle, or in case of DN group of broilers, 10g/kg finely ground dry nettle mixed into a finisher. On day 42, random sample of 6 male and 6 female birds were taken from each group and slaughtered. Meat samples (breasts and drumsticks) were collected and the proximate composition analysis was conducted on each portion of each chicken (total of 72 samples). The fatty acid composition (Shimadzu GC-2014 with FID detector) and mineral analysis (Na, Mg, K, Ca, Mn, Fe, Cu, Zn and Se content measured by iCap Q) was conducted on each portion (breast and drumstick) of 6 chicken per group (3 male and 3 female). An analysis of variance and t-test (IBM SPSS Statistics 20 software) was performed. Meat fat content was significantly lower (P=0.028) in broilers fed with the addition of dry nettle compared with other two groups, which could have an impact on quality characteristics of meat, such as flavor and tenderness. The addition of fresh or dry nettle influenced meat ash content as well, which was significantly larger compared with C group (P<0.001). Total MUFA was highest in DN group (31.20%), while there were no significant differences between other two groups (P<0.001), mainly due to higher share of palmitoleic and oleic acid found in meat from DN group. The lowest amount of total PUFA (35.08%) and n-6 fatty acids (32.19%) was found in DN group (P<0.001), specifically significantly lower content of linoleic acid. Also, DN group have better n-6/n-3 ratio (11.83) compared to control (13.46, P=0.036), while there was no effect when fresh nettle was used. Analysis of minerals in meat showed significantly higher level of Na and Se in DN group, and Fe and Zn in FN group. Generally, research shows that extra addition of 1% dry nettle in broiler feed during the last seven days of fattening can result in different chemical, fatty acid and mineral composition of meat.
PB  - French Branch of the World’s Poultry Science Association
C3  - 26th World’s Poultry Congress, Book of abstracts
T1  - CAN ONE WEEK’S USE OF NETTLE IN BROILER FEED AFFECT THE CHEMICAL QUALITY OF MEAT?
SP  - 465
EP  - 465
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_943
ER  - 

@conference{
author = "Lukić, Miloš and Stanišić, Nikola and Škrbić, Zdenka and Petričević, Veselin and Tolimir, Nataša and Dosković, Vladimir and Stamenić, Tamara",
year = "2022-08",
abstract = "This experiment aimed to evaluate the effects of adding fresh or dry nettle (Urtica dioica L.) to broiler diets during the last week of fattening on proximate composition, fatty acid and mineral content of meat. The trial was performed on a total of 600 ROSS-308 unsexed day-old chickens, divided into 3 groups (C - Control group; FN - Fresh Nettle group; DN - Dry Nettle group). All broilers were bred and fed equally, with standard diets from age 1-42 days, except for the last seven days of fattening when in FN group was added daily to the feeders (on top) 20g/chicken freshly collected, blanched and chopped nettle, or in case of DN group of broilers, 10g/kg finely ground dry nettle mixed into a finisher. On day 42, random sample of 6 male and 6 female birds were taken from each group and slaughtered. Meat samples (breasts and drumsticks) were collected and the proximate composition analysis was conducted on each portion of each chicken (total of 72 samples). The fatty acid composition (Shimadzu GC-2014 with FID detector) and mineral analysis (Na, Mg, K, Ca, Mn, Fe, Cu, Zn and Se content measured by iCap Q) was conducted on each portion (breast and drumstick) of 6 chicken per group (3 male and 3 female). An analysis of variance and t-test (IBM SPSS Statistics 20 software) was performed. Meat fat content was significantly lower (P=0.028) in broilers fed with the addition of dry nettle compared with other two groups, which could have an impact on quality characteristics of meat, such as flavor and tenderness. The addition of fresh or dry nettle influenced meat ash content as well, which was significantly larger compared with C group (P<0.001). Total MUFA was highest in DN group (31.20%), while there were no significant differences between other two groups (P<0.001), mainly due to higher share of palmitoleic and oleic acid found in meat from DN group. The lowest amount of total PUFA (35.08%) and n-6 fatty acids (32.19%) was found in DN group (P<0.001), specifically significantly lower content of linoleic acid. Also, DN group have better n-6/n-3 ratio (11.83) compared to control (13.46, P=0.036), while there was no effect when fresh nettle was used. Analysis of minerals in meat showed significantly higher level of Na and Se in DN group, and Fe and Zn in FN group. Generally, research shows that extra addition of 1% dry nettle in broiler feed during the last seven days of fattening can result in different chemical, fatty acid and mineral composition of meat.",
publisher = "French Branch of the World’s Poultry Science Association",
journal = "26th World’s Poultry Congress, Book of abstracts",
title = "CAN ONE WEEK’S USE OF NETTLE IN BROILER FEED AFFECT THE CHEMICAL QUALITY OF MEAT?",
pages = "465-465",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_943"
}

Lukić, M., Stanišić, N., Škrbić, Z., Petričević, V., Tolimir, N., Dosković, V.,& Stamenić, T.. (2022-08). CAN ONE WEEK’S USE OF NETTLE IN BROILER FEED AFFECT THE CHEMICAL QUALITY OF MEAT?. in 26th World’s Poultry Congress, Book of abstracts
French Branch of the World’s Poultry Science Association., 465-465.
https://hdl.handle.net/21.15107/rcub_ristocar_943

Lukić M, Stanišić N, Škrbić Z, Petričević V, Tolimir N, Dosković V, Stamenić T. CAN ONE WEEK’S USE OF NETTLE IN BROILER FEED AFFECT THE CHEMICAL QUALITY OF MEAT?. in 26th World’s Poultry Congress, Book of abstracts. 2022;:465-465.
https://hdl.handle.net/21.15107/rcub_ristocar_943 .

Lukić, Miloš, Stanišić, Nikola, Škrbić, Zdenka, Petričević, Veselin, Tolimir, Nataša, Dosković, Vladimir, Stamenić, Tamara, "CAN ONE WEEK’S USE OF NETTLE IN BROILER FEED AFFECT THE CHEMICAL QUALITY OF MEAT?" in 26th World’s Poultry Congress, Book of abstracts (2022-08):465-465,
https://hdl.handle.net/21.15107/rcub_ristocar_943 .

TY  - GEN
AU  - Tolimir, Nataša
AU  - Perić, Lidija
AU  - Škrbić, Zdenka
AU  - Jovanović, Rade
AU  - Maslovarić, Marijana
AU  - Lukić, Miloš
AU  - Milić, Dragan
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/864
AB  - Ishrana brojlera je jedan od najznačajnijih uslova za ispoljavnje genetskog potencijala savremenih hibrida, a u ukupnim troškovima proizvodnje čini oko 70 %. U proizvodnim uslovima, kod nas i u svetu, najčešće primenjivan koncept ishrane brojlera je sa tri do pet potpunih krmnih smeša. NCR 1994 (National Research Council, USA) za ishranu brojlera definiše potrebe za tri fiksna perioda: starter (1-3 nedelje), grover (3-6 nedelja) i finišer (6-8 nedelja). Rezultati istraživanja ukazuju da pri ishrani sa tri ili četiri smeše, potrebe brojlera u pojedinim fazama tova nisu usaglašene sa nutritivnim sastavom smeša. Posledice pothranjenosti/prehranjenosti brojlera istovremeno predstavljaju ekonomski i ekološki problem u proizvodnji pilećeg mesa. Nedostatak proteina u starter periodu rezultira izostankom osnove za optimalan rast, dok višak proteina u finišer periodu dovodi, sa jedne strane do povećanja troškova proizvodnje usled ishrane smešama višeg nivoa proteina, koje imaju višu cenu, pri čemu za njima nema realne potrebe, a sa druge strane, do ekološkog problema usled povećanja ekskrecije azota u fecesu, koji potiče iz viška proteina u hrani. U rešavanju problema neprecizne ishrane primenjuju se različiti programi multifazne ishrane, pri čemu su jedni sa fokusom na ekonomičnost, pojedini na očuvanju životne sredine, dok pojedini programi imaju za cilj jedno i drugo i zasnivaju se na konceptu sniženog sadržaja proteina do nivoa kojim se ne ugrožavaju proizvodne performanse brojlera, a ostvaruje se smanjenje ekskrecije azota.
Inovacija novog modela multifazne ishrane brojlera zasniva se na definisanom programu ishrane za provenijencu Ross 308, za tov pilića po polovima, sa ukupno devet smeša, uključujući i tehnološki postupak njihovog dobijanja.
T2  - Tehničko rešenje
T1  - Model multifaznog starter perioda u ishrani brojlera - sa tehnološkim postupkom dobijanja smeša (tehničko rešenje)
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_864
ER  - 

@misc{
author = "Tolimir, Nataša and Perić, Lidija and Škrbić, Zdenka and Jovanović, Rade and Maslovarić, Marijana and Lukić, Miloš and Milić, Dragan",
year = "2022",
abstract = "Ishrana brojlera je jedan od najznačajnijih uslova za ispoljavnje genetskog potencijala savremenih hibrida, a u ukupnim troškovima proizvodnje čini oko 70 %. U proizvodnim uslovima, kod nas i u svetu, najčešće primenjivan koncept ishrane brojlera je sa tri do pet potpunih krmnih smeša. NCR 1994 (National Research Council, USA) za ishranu brojlera definiše potrebe za tri fiksna perioda: starter (1-3 nedelje), grover (3-6 nedelja) i finišer (6-8 nedelja). Rezultati istraživanja ukazuju da pri ishrani sa tri ili četiri smeše, potrebe brojlera u pojedinim fazama tova nisu usaglašene sa nutritivnim sastavom smeša. Posledice pothranjenosti/prehranjenosti brojlera istovremeno predstavljaju ekonomski i ekološki problem u proizvodnji pilećeg mesa. Nedostatak proteina u starter periodu rezultira izostankom osnove za optimalan rast, dok višak proteina u finišer periodu dovodi, sa jedne strane do povećanja troškova proizvodnje usled ishrane smešama višeg nivoa proteina, koje imaju višu cenu, pri čemu za njima nema realne potrebe, a sa druge strane, do ekološkog problema usled povećanja ekskrecije azota u fecesu, koji potiče iz viška proteina u hrani. U rešavanju problema neprecizne ishrane primenjuju se različiti programi multifazne ishrane, pri čemu su jedni sa fokusom na ekonomičnost, pojedini na očuvanju životne sredine, dok pojedini programi imaju za cilj jedno i drugo i zasnivaju se na konceptu sniženog sadržaja proteina do nivoa kojim se ne ugrožavaju proizvodne performanse brojlera, a ostvaruje se smanjenje ekskrecije azota.
Inovacija novog modela multifazne ishrane brojlera zasniva se na definisanom programu ishrane za provenijencu Ross 308, za tov pilića po polovima, sa ukupno devet smeša, uključujući i tehnološki postupak njihovog dobijanja.",
journal = "Tehničko rešenje",
title = "Model multifaznog starter perioda u ishrani brojlera - sa tehnološkim postupkom dobijanja smeša (tehničko rešenje)",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_864"
}

Tolimir, N., Perić, L., Škrbić, Z., Jovanović, R., Maslovarić, M., Lukić, M.,& Milić, D.. (2022). Model multifaznog starter perioda u ishrani brojlera - sa tehnološkim postupkom dobijanja smeša (tehničko rešenje). in Tehničko rešenje.
https://hdl.handle.net/21.15107/rcub_ristocar_864

Tolimir N, Perić L, Škrbić Z, Jovanović R, Maslovarić M, Lukić M, Milić D. Model multifaznog starter perioda u ishrani brojlera - sa tehnološkim postupkom dobijanja smeša (tehničko rešenje). in Tehničko rešenje. 2022;.
https://hdl.handle.net/21.15107/rcub_ristocar_864 .

Tolimir, Nataša, Perić, Lidija, Škrbić, Zdenka, Jovanović, Rade, Maslovarić, Marijana, Lukić, Miloš, Milić, Dragan, "Model multifaznog starter perioda u ishrani brojlera - sa tehnološkim postupkom dobijanja smeša (tehničko rešenje)" in Tehničko rešenje (2022),
https://hdl.handle.net/21.15107/rcub_ristocar_864 .

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  - Relić, Renata
AU  - Škrbić, Zdenka
AU  - Božičković, Ivana
AU  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Delić, Nikola
AU  - Bondžić, Aleksandra
AU  - Vitorović, Duško
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/805
AB  - Intensive broiler chicken production involves different lighting regimes, which affects a natural cycle of secretion of
melatonin, a hormone included in multiple physiological processes in a bird's body. This research aimed to determine the effects of
dietary melatonin supplementation during the first two weeks of broiler chickens' life, bred under constant 24 h lighting, on their health
and some hematological, biochemical, and production parameters. The study lasted 6 weeks. Three hundred and twenty 1-day chickens
were divided into two groups (control - C and experimental - M), with four replications and 40 chickens in each replica. In the first
two weeks (the first phase of the study), a continuous lighting mode 24L: 0D was applied. Group M was receiving a diet supplemented
with 30 mg/kg synthetic melatonin only during the first phase. Group C had a diet without melatonin supplementation throughout the
whole study. Melatonin addition had a statistically significant effect (P<0.01) on the mean values of body weight and daily weight gain
at the end of the 1st, 2nd, 3rd, 4th, 5th, and 6th week. The chickens of the experimental group have had a significantly higher value of the
European Production Efficiency Factor (EPEF) (P<0.05). The results presented in this paper indicate a direct benefit in stress relief in
broilers and a value of the organism's antioxidant system promotion, manifested by improved production performance and fattening
efficiency.
PB  - Ankara University
T2  - Ankara Universitesi Veteriner Fakultesi Dergisi
T1  - Effects of dietary melatonin on broiler chicken exposed to continuous lighting during the first two weeks of life
VL  - 69
IS  - 4
SP  - 361
EP  - 366
DO  - 10.33988/auvfd.866702
ER  - 

@article{
author = "Relić, Renata and Škrbić, Zdenka and Božičković, Ivana and Lukić, Miloš and Petričević, Veselin and Delić, Nikola and Bondžić, Aleksandra and Vitorović, Duško",
year = "2022",
abstract = "Intensive broiler chicken production involves different lighting regimes, which affects a natural cycle of secretion of
melatonin, a hormone included in multiple physiological processes in a bird's body. This research aimed to determine the effects of
dietary melatonin supplementation during the first two weeks of broiler chickens' life, bred under constant 24 h lighting, on their health
and some hematological, biochemical, and production parameters. The study lasted 6 weeks. Three hundred and twenty 1-day chickens
were divided into two groups (control - C and experimental - M), with four replications and 40 chickens in each replica. In the first
two weeks (the first phase of the study), a continuous lighting mode 24L: 0D was applied. Group M was receiving a diet supplemented
with 30 mg/kg synthetic melatonin only during the first phase. Group C had a diet without melatonin supplementation throughout the
whole study. Melatonin addition had a statistically significant effect (P<0.01) on the mean values of body weight and daily weight gain
at the end of the 1st, 2nd, 3rd, 4th, 5th, and 6th week. The chickens of the experimental group have had a significantly higher value of the
European Production Efficiency Factor (EPEF) (P<0.05). The results presented in this paper indicate a direct benefit in stress relief in
broilers and a value of the organism's antioxidant system promotion, manifested by improved production performance and fattening
efficiency.",
publisher = "Ankara University",
journal = "Ankara Universitesi Veteriner Fakultesi Dergisi",
title = "Effects of dietary melatonin on broiler chicken exposed to continuous lighting during the first two weeks of life",
volume = "69",
number = "4",
pages = "361-366",
doi = "10.33988/auvfd.866702"
}

Relić, R., Škrbić, Z., Božičković, I., Lukić, M., Petričević, V., Delić, N., Bondžić, A.,& Vitorović, D.. (2022). Effects of dietary melatonin on broiler chicken exposed to continuous lighting during the first two weeks of life. in Ankara Universitesi Veteriner Fakultesi Dergisi
Ankara University., 69(4), 361-366.
https://doi.org/10.33988/auvfd.866702

Relić R, Škrbić Z, Božičković I, Lukić M, Petričević V, Delić N, Bondžić A, Vitorović D. Effects of dietary melatonin on broiler chicken exposed to continuous lighting during the first two weeks of life. in Ankara Universitesi Veteriner Fakultesi Dergisi. 2022;69(4):361-366.
doi:10.33988/auvfd.866702 .

Relić, Renata, Škrbić, Zdenka, Božičković, Ivana, Lukić, Miloš, Petričević, Veselin, Delić, Nikola, Bondžić, Aleksandra, Vitorović, Duško, "Effects of dietary melatonin on broiler chicken exposed to continuous lighting during the first two weeks of life" in Ankara Universitesi Veteriner Fakultesi Dergisi, 69, no. 4 (2022):361-366,
https://doi.org/10.33988/auvfd.866702 . .

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  - Lukić, Miloš
AU  - Petričević, Veselin
AU  - Delić, Nikola
AU  - Tolimir, Nataša
AU  - Dosković, Vladimir
AU  - Rakonjac, Simeon
AU  - Škrbić, Zdenka
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/791
AB  - Key questions for a local broiler farm are: which broiler hybrid to rear and which industrial
feed to use? To show how farmers can manage them, a combination of biological tests and feed
characterizations of the most commonly used hybrids and broiler feeds in the local (Serbian) market was designed and performed. The hybrids Cobb 500 and Ross 308 were used, as well as feed of the same quality category from three established domestic producers (A, B, and C) available in the market. A factorial trial (2   3) was performed on a total of 1800 unsexed day-old chicks divided into six experimental treatments, with six repetitions per treatment and 50 chickens in each repetition.
Prior to and after the biological trial, the feed was characterized. The results confirm the equally
high production potential of the two tested fast-growing hybrids, the different quality of the three
industrial feeds, and that for the expression of genetic potential, each feeding and fattening period
was equally valuable. A complete picture of the tested feeds was obtained within a suitable posttest feed characterization with a farm economy included in the analysis, and the results differed in different production and market scenarios, which allows for finding the optimal feed for the local farm.
PB  - MDPI
T2  - Agriculture
T1  - How Does the Choice of Genotype and Feed in the Local Market Affect Broiler Performance and the Farm Economy? A Case Study in Serbia
VL  - 12
IS  - 6
SP  - 1
EP  - 15
DO  - 10.3390/agriculture12060843
ER  - 

@article{
author = "Lukić, Miloš and Petričević, Veselin and Delić, Nikola and Tolimir, Nataša and Dosković, Vladimir and Rakonjac, Simeon and Škrbić, Zdenka",
year = "2022",
abstract = "Key questions for a local broiler farm are: which broiler hybrid to rear and which industrial
feed to use? To show how farmers can manage them, a combination of biological tests and feed
characterizations of the most commonly used hybrids and broiler feeds in the local (Serbian) market was designed and performed. The hybrids Cobb 500 and Ross 308 were used, as well as feed of the same quality category from three established domestic producers (A, B, and C) available in the market. A factorial trial (2   3) was performed on a total of 1800 unsexed day-old chicks divided into six experimental treatments, with six repetitions per treatment and 50 chickens in each repetition.
Prior to and after the biological trial, the feed was characterized. The results confirm the equally
high production potential of the two tested fast-growing hybrids, the different quality of the three
industrial feeds, and that for the expression of genetic potential, each feeding and fattening period
was equally valuable. A complete picture of the tested feeds was obtained within a suitable posttest feed characterization with a farm economy included in the analysis, and the results differed in different production and market scenarios, which allows for finding the optimal feed for the local farm.",
publisher = "MDPI",
journal = "Agriculture",
title = "How Does the Choice of Genotype and Feed in the Local Market Affect Broiler Performance and the Farm Economy? A Case Study in Serbia",
volume = "12",
number = "6",
pages = "1-15",
doi = "10.3390/agriculture12060843"
}

Lukić, M., Petričević, V., Delić, N., Tolimir, N., Dosković, V., Rakonjac, S.,& Škrbić, Z.. (2022). How Does the Choice of Genotype and Feed in the Local Market Affect Broiler Performance and the Farm Economy? A Case Study in Serbia. in Agriculture
MDPI., 12(6), 1-15.
https://doi.org/10.3390/agriculture12060843

Lukić M, Petričević V, Delić N, Tolimir N, Dosković V, Rakonjac S, Škrbić Z. How Does the Choice of Genotype and Feed in the Local Market Affect Broiler Performance and the Farm Economy? A Case Study in Serbia. in Agriculture. 2022;12(6):1-15.
doi:10.3390/agriculture12060843 .

Lukić, Miloš, Petričević, Veselin, Delić, Nikola, Tolimir, Nataša, Dosković, Vladimir, Rakonjac, Simeon, Škrbić, Zdenka, "How Does the Choice of Genotype and Feed in the Local Market Affect Broiler Performance and the Farm Economy? A Case Study in Serbia" in Agriculture, 12, no. 6 (2022):1-15,
https://doi.org/10.3390/agriculture12060843 . .

TY  - JOUR
AU  - Petričević, Veselin
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Rakonjac, Simeon
AU  - Stanojković, Aleksandar
AU  - Nikšić, Dragan
AU  - Živković, Vladimir
PY  - 2022
UR  - http://r.istocar.bg.ac.rs/handle/123456789/788
AB  - The focus of the research was to examine the effects of the addition of different concentrations
of bee pollen to broiler feed on production performance, microbiological composition
of caecum and carcass quality. The study was performed on 1200 chickens divided
into 5 groups with 6 replicates per group. During the test, the broilers were fed with
two complete feed mixtures (starter and finisher) each differed only in the amount of
pollen added: no pollen in control group (C); 0.25% pollen in feed consumed by P0.25
group; 0.5% in P0.5 group; 0.75% for group P0.75; and 1.0% of pollen in feed for P1.0
group. Body weight of the chickens was measured during the change of the mixture, on
the 21st day and at the end of the research (day 42). Average feed consumption, average
daily gain, feed conversion rate, mortality and European Production Efficiency Factor
(EPEF) were determined. At the end of the experiment, 12 chickens of both sexes were
sacrificed from each group, in order to determine the microbiological composition of the
intestines and slaughter performance.
The results showed positive effects of pollen use on production parameters. Chickens
of P0.75 group had significantly higher (p < 0.05) average daily gains and better feed
conversion, also the value of EPEF was significantly higher (p < 0.01) in P0.75 group
compared to groups with lower pollen addition. A significantly higher (p < 0.01) number
of Enterobacteriaceae was found in the cecum content of chickens of C and P0.25 groups
compared to P0.75 and P1.0 groups. No significant differences in slaughter performance
were found. It was concluded that the addition of 0.75% pollen can have a positive effect
on the production performance and the microbiological composition of the intestine.
PB  - Verlag Eugen Ulmer, Stuttgart
T2  - Züchtungskunde
T1  - Production Parameters, microbiological Composition of Intestines and Slaughter Performance of Broilers fed with Bee Pollen
VL  - 94
IS  - 1
SP  - 36
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_788
ER  - 

@article{
author = "Petričević, Veselin and Lukić, Miloš and Škrbić, Zdenka and Rakonjac, Simeon and Stanojković, Aleksandar and Nikšić, Dragan and Živković, Vladimir",
year = "2022",
abstract = "The focus of the research was to examine the effects of the addition of different concentrations
of bee pollen to broiler feed on production performance, microbiological composition
of caecum and carcass quality. The study was performed on 1200 chickens divided
into 5 groups with 6 replicates per group. During the test, the broilers were fed with
two complete feed mixtures (starter and finisher) each differed only in the amount of
pollen added: no pollen in control group (C); 0.25% pollen in feed consumed by P0.25
group; 0.5% in P0.5 group; 0.75% for group P0.75; and 1.0% of pollen in feed for P1.0
group. Body weight of the chickens was measured during the change of the mixture, on
the 21st day and at the end of the research (day 42). Average feed consumption, average
daily gain, feed conversion rate, mortality and European Production Efficiency Factor
(EPEF) were determined. At the end of the experiment, 12 chickens of both sexes were
sacrificed from each group, in order to determine the microbiological composition of the
intestines and slaughter performance.
The results showed positive effects of pollen use on production parameters. Chickens
of P0.75 group had significantly higher (p < 0.05) average daily gains and better feed
conversion, also the value of EPEF was significantly higher (p < 0.01) in P0.75 group
compared to groups with lower pollen addition. A significantly higher (p < 0.01) number
of Enterobacteriaceae was found in the cecum content of chickens of C and P0.25 groups
compared to P0.75 and P1.0 groups. No significant differences in slaughter performance
were found. It was concluded that the addition of 0.75% pollen can have a positive effect
on the production performance and the microbiological composition of the intestine.",
publisher = "Verlag Eugen Ulmer, Stuttgart",
journal = "Züchtungskunde",
title = "Production Parameters, microbiological Composition of Intestines and Slaughter Performance of Broilers fed with Bee Pollen",
volume = "94",
number = "1",
pages = "36-46",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_788"
}

Petričević, V., Lukić, M., Škrbić, Z., Rakonjac, S., Stanojković, A., Nikšić, D.,& Živković, V.. (2022). Production Parameters, microbiological Composition of Intestines and Slaughter Performance of Broilers fed with Bee Pollen. in Züchtungskunde
Verlag Eugen Ulmer, Stuttgart., 94(1), 36-46.
https://hdl.handle.net/21.15107/rcub_ristocar_788

Petričević V, Lukić M, Škrbić Z, Rakonjac S, Stanojković A, Nikšić D, Živković V. Production Parameters, microbiological Composition of Intestines and Slaughter Performance of Broilers fed with Bee Pollen. in Züchtungskunde. 2022;94(1):36-46.
https://hdl.handle.net/21.15107/rcub_ristocar_788 .

Petričević, Veselin, Lukić, Miloš, Škrbić, Zdenka, Rakonjac, Simeon, Stanojković, Aleksandar, Nikšić, Dragan, Živković, Vladimir, "Production Parameters, microbiological Composition of Intestines and Slaughter Performance of Broilers fed with Bee Pollen" in Züchtungskunde, 94, no. 1 (2022):36-46,
https://hdl.handle.net/21.15107/rcub_ristocar_788 .

TY  - CONF
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Petričević, Veselin
AU  - Stamenić, Tamara
PY  - 2021-11-08
UR  - http://r.istocar.bg.ac.rs/handle/123456789/773
AB  - Poultry production practices can be very diverse: from different conventional ways (intensive
productions) and extensive types (i.e. Label Rouge or other labeled productions)
to organic production. Differences begin with different growth periods and rigor in production
protocols, continue in the use of different hybrids or breeds of chicken, differences in
feed and feeding programs, and inevitably end with different product prices.Out of product
price, the main question for costumers, and especially for nutritionists, is a difference in
meat and egg quality from different production practices. Quality today meens that they
must know not only intrinsic (sensory, nutritive and technological value) but also extrinsic
(environmental impact, animal welfare) quality parameters of produced meat and eggs, and
that safety of food must be secured (if not safe, not food). Meat and eggs from intensive, extensive,
and organic poultry production show relatively small differences in internal quality
(in some sensory, nutritive and technological parameters), and relatively medium (environmental
impact) to large (animal welfare) differences in external (extrinsic) quality and price.
However, for some consumers impact of the intensive production on animals and nature
can also cause the “bitter” taste of the products obtained in this way.The research group
from the Institute for Animal Husbandry has dealt with every aspect of poultry production
for many years. Annual tests of the genetic potential of the most popular broiler hybrids
shows continuous improvements (in 2020: 2.65kg on 42 days with 1.63 kg feed/kg gain; in
2021: 2.87kg with 1.66 kg /kg). These birds for intensive production also have the best meat
yield, especially breast meat, but lately we often observe a decrease in technological value
of breast meat (pale-soft-exudative meat, wooden breast, white sriping, spaghetty meat),
otherwise very rare in meat from extensive or organic production. The nutritional value of
produced meat and eggs mainly depends on the poultry diet used, not directly on the type
of production. We can relatively easily modulate several vitamins (A,E,D), minerals (Se, J,
F), skin/yolk color (carotenoids) and fatty acid profile in meat and eggs to some extent, with
modulation in poultry nutrition and use of synthetic (or natural) feed additives. In products
from extensive/organic production with good pasture, we often noticed a slightly higher
content of these nutrients, especially in eggs.
PB  - Serbian Nutrition Society
C3  - Book of Abstracts of XIV International Congress on Nutrition: A place where science meets practice
T1  - Diversity of poultry production practices and impact on quality of meat and eggs
SP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_773
ER  - 

@conference{
author = "Lukić, Miloš and Škrbić, Zdenka and Petričević, Veselin and Stamenić, Tamara",
year = "2021-11-08",
abstract = "Poultry production practices can be very diverse: from different conventional ways (intensive
productions) and extensive types (i.e. Label Rouge or other labeled productions)
to organic production. Differences begin with different growth periods and rigor in production
protocols, continue in the use of different hybrids or breeds of chicken, differences in
feed and feeding programs, and inevitably end with different product prices.Out of product
price, the main question for costumers, and especially for nutritionists, is a difference in
meat and egg quality from different production practices. Quality today meens that they
must know not only intrinsic (sensory, nutritive and technological value) but also extrinsic
(environmental impact, animal welfare) quality parameters of produced meat and eggs, and
that safety of food must be secured (if not safe, not food). Meat and eggs from intensive, extensive,
and organic poultry production show relatively small differences in internal quality
(in some sensory, nutritive and technological parameters), and relatively medium (environmental
impact) to large (animal welfare) differences in external (extrinsic) quality and price.
However, for some consumers impact of the intensive production on animals and nature
can also cause the “bitter” taste of the products obtained in this way.The research group
from the Institute for Animal Husbandry has dealt with every aspect of poultry production
for many years. Annual tests of the genetic potential of the most popular broiler hybrids
shows continuous improvements (in 2020: 2.65kg on 42 days with 1.63 kg feed/kg gain; in
2021: 2.87kg with 1.66 kg /kg). These birds for intensive production also have the best meat
yield, especially breast meat, but lately we often observe a decrease in technological value
of breast meat (pale-soft-exudative meat, wooden breast, white sriping, spaghetty meat),
otherwise very rare in meat from extensive or organic production. The nutritional value of
produced meat and eggs mainly depends on the poultry diet used, not directly on the type
of production. We can relatively easily modulate several vitamins (A,E,D), minerals (Se, J,
F), skin/yolk color (carotenoids) and fatty acid profile in meat and eggs to some extent, with
modulation in poultry nutrition and use of synthetic (or natural) feed additives. In products
from extensive/organic production with good pasture, we often noticed a slightly higher
content of these nutrients, especially in eggs.",
publisher = "Serbian Nutrition Society",
journal = "Book of Abstracts of XIV International Congress on Nutrition: A place where science meets practice",
title = "Diversity of poultry production practices and impact on quality of meat and eggs",
pages = "67",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_773"
}

Lukić, M., Škrbić, Z., Petričević, V.,& Stamenić, T.. (2021-11-08). Diversity of poultry production practices and impact on quality of meat and eggs. in Book of Abstracts of XIV International Congress on Nutrition: A place where science meets practice
Serbian Nutrition Society., 67.
https://hdl.handle.net/21.15107/rcub_ristocar_773

Lukić M, Škrbić Z, Petričević V, Stamenić T. Diversity of poultry production practices and impact on quality of meat and eggs. in Book of Abstracts of XIV International Congress on Nutrition: A place where science meets practice. 2021;:67.
https://hdl.handle.net/21.15107/rcub_ristocar_773 .

Lukić, Miloš, Škrbić, Zdenka, Petričević, Veselin, Stamenić, Tamara, "Diversity of poultry production practices and impact on quality of meat and eggs" in Book of Abstracts of XIV International Congress on Nutrition: A place where science meets practice (2021-11-08):67,
https://hdl.handle.net/21.15107/rcub_ristocar_773 .

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  - Petričević, Veselin
AU  - Dosković, Vladimir
AU  - Lukić, Miloš
AU  - Škrbić, Zdenka
AU  - Rakonjac, Simeon
AU  - Petričević, Maja
AU  - Stanojković, Aleksandar
PY  - 2021-04-12
UR  - http://r.istocar.bg.ac.rs/handle/123456789/736
AB  - This study was conducted to evaluate the productive performance, carcass quality and cecal microbial composition of broiler
chickens fed diets supplemented with different concentrations of peppermint powder. Peppermint (Mentha piperita L.) is characterized
by strongly scented leaves. It is used as a remedy in herbal medicine, and consists of up to 4% essential oil (with 35-
45% menthol). The study included 960 one-day mixed-sex Ross 308 broilers. The chickens were assigned to 4 treatments and
were housed in 24 boxes, with 6 replicates per treatment. Broilers received three diets (starter, grower and finisher) differing in
the amount of supplemental peppermint powder, and were fed ad libitum. The diets contained different levels of supplemental
peppermint powder: control group (C) - without peppermint, 02P - 0.2% peppermint, 04P - 0.4% peppermint, and 06P - 0.6%
peppermint.
The body weight of chickens was measured when changing their feed (days 10 and 24) and at the end of the experiment (day
42). Average feed intake, average daily gain, mortality, feed conversion, and the European Production Efficiency Factor (EPEF)
were determined. At the end of the trial, 12 broilers of both sexes were randomly selected from each group and slaughtered to
measure their carcass traits. Positive effects of peppermint supplementation were identified. The 04P chickens had significantly
higher (p<0.01) values of average daily gain, feed conversion and EPEF compared with the C broilers. There were no significant
differences in slaughter results (dressing percentages, the proportions of breast, drumsticks, thighs, wings, abdominal fat,
heart, liver and stomach). The total numbers of aerobic bacteria and Lactobacilli were not affected by the peppermint supplementation
into broiler diet. The Escherichia coli count in the 04P and 06P birds was lower than that in the C broilers (p<0.05).
The results showed that the supplementation of 0.6% peppermint powder to broiler diet had positive effects on weight gain, feed
conversion and cecal microbial composition.
T2  - Large Animal Review
T1  - Effect of peppermint (Mentha piperita L.) in broiler chicken diet on production parameters, slaughter characteristics and gut microbial composition
VL  - 27
SP  - 103
EP  - 107
UR  - https://hdl.handle.net/21.15107/rcub_ristocar_736
ER  - 

@article{
author = "Petričević, Veselin and Dosković, Vladimir and Lukić, Miloš and Škrbić, Zdenka and Rakonjac, Simeon and Petričević, Maja and Stanojković, Aleksandar",
year = "2021-04-12",
abstract = "This study was conducted to evaluate the productive performance, carcass quality and cecal microbial composition of broiler
chickens fed diets supplemented with different concentrations of peppermint powder. Peppermint (Mentha piperita L.) is characterized
by strongly scented leaves. It is used as a remedy in herbal medicine, and consists of up to 4% essential oil (with 35-
45% menthol). The study included 960 one-day mixed-sex Ross 308 broilers. The chickens were assigned to 4 treatments and
were housed in 24 boxes, with 6 replicates per treatment. Broilers received three diets (starter, grower and finisher) differing in
the amount of supplemental peppermint powder, and were fed ad libitum. The diets contained different levels of supplemental
peppermint powder: control group (C) - without peppermint, 02P - 0.2% peppermint, 04P - 0.4% peppermint, and 06P - 0.6%
peppermint.
The body weight of chickens was measured when changing their feed (days 10 and 24) and at the end of the experiment (day
42). Average feed intake, average daily gain, mortality, feed conversion, and the European Production Efficiency Factor (EPEF)
were determined. At the end of the trial, 12 broilers of both sexes were randomly selected from each group and slaughtered to
measure their carcass traits. Positive effects of peppermint supplementation were identified. The 04P chickens had significantly
higher (p<0.01) values of average daily gain, feed conversion and EPEF compared with the C broilers. There were no significant
differences in slaughter results (dressing percentages, the proportions of breast, drumsticks, thighs, wings, abdominal fat,
heart, liver and stomach). The total numbers of aerobic bacteria and Lactobacilli were not affected by the peppermint supplementation
into broiler diet. The Escherichia coli count in the 04P and 06P birds was lower than that in the C broilers (p<0.05).
The results showed that the supplementation of 0.6% peppermint powder to broiler diet had positive effects on weight gain, feed
conversion and cecal microbial composition.",
journal = "Large Animal Review",
title = "Effect of peppermint (Mentha piperita L.) in broiler chicken diet on production parameters, slaughter characteristics and gut microbial composition",
volume = "27",
pages = "103-107",
url = "https://hdl.handle.net/21.15107/rcub_ristocar_736"
}

Petričević, V., Dosković, V., Lukić, M., Škrbić, Z., Rakonjac, S., Petričević, M.,& Stanojković, A.. (2021-04-12). Effect of peppermint (Mentha piperita L.) in broiler chicken diet on production parameters, slaughter characteristics and gut microbial composition. in Large Animal Review, 27, 103-107.
https://hdl.handle.net/21.15107/rcub_ristocar_736

Petričević V, Dosković V, Lukić M, Škrbić Z, Rakonjac S, Petričević M, Stanojković A. Effect of peppermint (Mentha piperita L.) in broiler chicken diet on production parameters, slaughter characteristics and gut microbial composition. in Large Animal Review. 2021;27:103-107.
https://hdl.handle.net/21.15107/rcub_ristocar_736 .

Petričević, Veselin, Dosković, Vladimir, Lukić, Miloš, Škrbić, Zdenka, Rakonjac, Simeon, Petričević, Maja, Stanojković, Aleksandar, "Effect of peppermint (Mentha piperita L.) in broiler chicken diet on production parameters, slaughter characteristics and gut microbial composition" in Large Animal Review, 27 (2021-04-12):103-107,
https://hdl.handle.net/21.15107/rcub_ristocar_736 .