Biotechnology in Animal Husbandry 2011 Volume 27, Issue 2, Pages: 171-181
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The effect of genotype on production and slaughter properties of broiler chickens
Petričević V., Pavlovski Z., Škrbić Z., Lukić M.
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.
Keywords: broiler chickens, genotype, production results and slaughter properties
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