Selection against abdominal fat percentage may increase intramuscular fat content in broilers
作者单位：Key Laboratory of Chicken Genetics and BreedingMinistry of Agriculture
会议名称：《第七届中国畜牧科技论坛》
会议日期：2016年
关 键 词：abdominal fat content intramuscular fat content liver fat content chicken
摘 要：Excessive abdominal fat content(AFC) has negative impacts on feed efficiency and carcass *** AFC,intramuscular fat content(IMFC) could be a favorable trait,which has a positive impact on meat *** meet consumers’ needs,a long-term goal of broiler breeders is to decrease AFC and improve the IMFC *** current study was designed to investigate the relationship between AFC and IMFC and to compare IMFC,including the pectoral major muscle fat content(PIMFC) and intramuscular fat content of leg muscle(LIMFC),between two broiler lines divergently selected for abdominal fat percentage over 17 *** results showed that there was a significant difference in PIMFC and LIMFC between the two lines in all five generation populations *** birds in the lean line had significantly lower AFC but higher PIMFC and LIMFC than the birds in the fat *** also detected differences in the liver fat content(LFC) between the two lines and the results showed that birds in the fat line had significant higher LFC than birds in the lean *** results indicated that a desirable broiler line with higher IMFC but lower AFC could be obtained by genetic selection.