[1]Department of Animal Genetics Breeding and Reproduction College of Animal Science South China Agricultural University Guangzhou 510642 Guangdong China.;
[2]Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Laboratory of Chicken Genetics Breeding and Reproduction Ministry of Agriculture Guangzhou 510642 Guangdong China;
[3]Wen’s Nanfang Poultry Breeding Co. Ltd Yunfu 527400 Guangdong China.;
CCKAR; Chicken; FCR; RFI; SNP;