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  - 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  - 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 .