Poultry Studies
2014, Vol 11, Num, 1 (Pages: 005-009)
The Comparison of Growth, Slaughter and Carcass Traits of Meat Chicken Genotype Produced by Back-Crossing with A Commercial Broiler Genotype
2 BÜ Tarım ve Doğa Bilimleri Fakültesi Zootekni Bölümü, YOZGAT - This study was conducted to determine the growth and some slaughter traits between commercial fast growing chickens and three-way cross M2 genotypes. 260 male female mixed chickens from each genotype was reared 10 replicate per genotype in the same house. Two different slaughtering ages were applied to commercial chickens and slaughtered at 6 and 7 weeks of age for comparing with cross genotypes. F chickens reached to slaughtering age at 42 days, whereas cross groups reached at 49 days. Genotypes consumed same amount of feed until slaughtering ages, but F genotype had better feed conversion ratio. The differences between dressing percentage and carcass parts ratios of genotypes were found significant, and F genotype had higher dressing percentage (P<0.05). Carcass parts of all genotypes were found in acceptable limits. Keywords : Crossing, broiler, feed efficiency, slaughter, carcass traits
