AUTHOR(S) / АУТОР(И): Veselin Petričević, Miloš Lukić, Zdenka Škrbić, Vladimir Dosković, Simeon Rakonjac, Maja Petričević, Danijel Milenković
E-MAIL: veselin5@live.com
DOI: 10.46793/SBT29.24VP
ABSTRACT / САЖЕТАК:
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.
KEYWORDS / КЉУЧНЕ РЕЧИ:
broiler hybrids, production performance, slaughter parameters
REFERENCES / ЛИТЕРАТУРА:
- Abdullah Y. A., Al-Beitawi A. N., Rjoup M. S., Qudsieh I. R., Ishmais A. A. (2010). Growth performance, carcass and meat quality characteristics of different commercial crosses of broiler strains of chicken. The Journal of Poultry Science, 47 (1), 13-21.
- Aviagen Ross 308/Ross 308 FF Broiler Performance Objectives. (2022). Available online: https://en.aviagen.com/brands/ross/products/ross-308.
- Bjedov S., Ljubojević D., Milošević N., Stanaćev V., Đukić-Stojčić M., Milić D. (2011). Production performance of meat type hybrids. Biotechnology in Animal Husbandry, 27 (4), 1689-1696.
- Cobb-Vantress. Cobb 500. Broiler Performance and Nutrition Supplement. (2022). Available online: https://www.cobb-vantress.com/products/cobb500.
- Hristakieva P., Mincheva N., Oblakova M., Lalev M., Ivanova I. (2014). Effect of genotype on production traits in broiler chickens. Slovak Journal of Animal Science, 47 (1), 19-24.
- Lukić M., Petričević V., Škrbić Z., Delić N., Tolimir N., Dosković V., Rakonjac S. (2020). Genotype and breeder flock age impact on broiler performance in suboptimal conditions. Biotechnology in Animal Husbandry 36, 447–462.
- 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. Agriculture 12, 843. https://doi.org/10.3390/agriculture12060843.
- Marcos A. T., Fausto S. S. (2016). Impact of genetics and breeding on broiler production performance: a look into the past, present, and future of the industry, Animal Frontiers, 6 (4), 37–41. https://doi.org/10.2527/af.2016-0042
- Nikolova N., Pavlovski Z. (2009). Major carcass parts of broiler chicken from different genotype, sex, age and nutrition system. Biotechnology in Animal Husbandry, 25 (5-6), 1045-1054.
- Pascalau S., Cadar M., Raducu C., Marchis Z. (2017). Evaluation of productive performances in Ross 308 and Cobb 500 hybrids. ABAH Bioflux, 9 (1), 22-27.
- Pavlovski Z.. Lukić M,. Cmiljanić R., Škrbić Z. (2006). Conformation measures on carcass of chichens. Biotechnology in Animal Husbandry, 22 (3-4), 83-96.
- Pavlovski Z., Škrbić Z., Lukić M., Petričević V., Trenkovski S. (2009). The effect of genotype and housing system on production results of fattening chickens. Biotechnology in Animal Husbandry, 25 (3-4), 221-229.
- Petričević V., Pavlovski Z., Škrbić Z., Lukić M. (2011): The effect of genotype on production and slaughter properties of broiler chickens. Biotechnology in Animal Husbandry, 27 (2), 171-181.
- Razuki, W. M., Mukhlis, S. A., Jasmin, F. H., Hamad, R. F. (2011). Productive performance of four commercial broiler genotypes reared under high ambient temperatures. International Journal of Poultry Science, 10 (2), 87-92.
- Sterling K. G., Pesti G. M., Bakalli R.I. (2006). Performance of different broiler genotypes fed diets with varying levels of dietary crude protein and lysine. Poultry Science 85, 1045–1054.
- Tudorache M. Custura I., Gheorghe A., Habeanu M., Lefter N. A., Pogurschi E. N., Popa D. C. (2022). Effects of genotype and diet on performance, carcass traits, and blood profiles of slow-growing chicks obtained by crosses of local breed with commercial genotype. Agriculture 12, 1906. https://doi.org/10.3390/agriculture12111906.