The effect of genotype on production and slaughter properties of broiler chickens
2011
Petričević, V., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Pavlovski, Z., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Škrbić, Z., Institute for Animal Husbandry, Belgrade-Zemun (Serbia) | Lukić, M., Institute for Animal Husbandry, Belgrade-Zemun (Serbia)
Objective of the research was to investigate the effect of genotype on production and slaughter properties of broiler chickens. The usual technology of broiler production was implemented, therefore fattening lasted 42 days. Trial included total of 2070 broiler chickens of following hybrids: Cobb 500, Ross 308 and Hubbard Classic. Chickens of genotypes Cobb 500 and Ross 308 realized significantly higher average body masses compared to Hubbard chickens. The highest mortality rate in the trial was recorded in Hubbard genotype. Chickens Cobb 500 and Ross 308 had the same feed conversion and statistically insignificant differences in production indices, whereas the values of these parameters in Hubbard chickens were significantly less favourable. The breast depth as carcass conformation measure showed no statistically significant differences between genotypes. Significantly higher values of breast angle were established in chickens of Cobb 500 compared to other two genotypes, whereas the highest values of thigh girth and the metatarsus length were established in Ross 308 chickens. Better slaughter results were obtained in carcasses of Cobb 500 genotype, chickens of both genders. Share of abdominal fat in percentage was similar in all genotypes, so the genotype had no significant effect on variation of this trait.
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