Effect of genotype, age, sex and composition of feed on content of abdominal fat in carcass of broiler chickens
2009
Nikolova, N. | Eftimova, E. | Pacinovski, N., Institute of Animal Science, Skopje (The Former Yugoslav Republic of Macedonia) | Pavlovski, Z., Institute for Animal Husbandry, Belgrade - Zemun (Serbia) | Milosevic, N. | Peric, L., Faculty of Agriculture, Novi Sad (Serbia)
In this paper mass and share of abdominal fat in broiler chickens of Cobb 500 and Hubbard Classic genotype, at the age of 5, 6 and 7 week, fed different feed mixtures were investigated. Also, the effect of interaction genotype x nutrition on mass of abdominal fat was analyzed. Mixture 1 had higher energy value and higher energy: protein ratio, whereas mixture 2 had higher protein value and lower energy: protein ratio. By analysis of results it was concluded that Hubbard chickens had significantly higher share of abdominal fat in carcass than Cobb chickens. Mass and share of abdominal fat in carcass had significantly the highest value in chickens at age of 7 week. Male chickens had statistically significant lower abdominal fat in carcass in comparison with female chickens. Differences in share of abdominal fat were statistically significant in chickens fed different mixtures. Namely, chickens fed with mixture 2 had less abdominal fat in percentage compared to chickens fed mixture 1. Analysis of interaction genotype x nutrition showed that the mass of abdominal fat in carcass of broiler chickens at age 5 and 6 week had significantly the highest value in chickens of Hubbard genotype which consumed mixture 1 and this occured also with Cobb chickens, but with smaller differences in obtained values.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Matica Srpska Library