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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2006;19(3): 319-323.
https://doi.org/10.5713/ajas.2006.319    Published online February 1, 2006.
Estimation of Genetic Parameters for Economic Traits in Korean Native Chickens
Byung Don Sang, Hong Sik Kong, Hak Kyu Kim, Chul Hwan Choi, Si Dong Kim, Yong Min Cho, Byung Chan Sang, Jun Heon Lee, Gwang Joo Jeon, Hak Kyo Lee
Heritabilities and genetic correlations of economic traits were estimated with a multiple-trait animal model on 5 different strains of Korea Native Chickens (KNC): Red Brown (RB), Yellow Brown (YB), Gray Brown (GB), Black (B) and White (W). The data used for this study were collected from the Daejeon branch of the National Livestock Research Institute and included 11,233 performance records and 12,729 individual animals. DFREML and SAS BASE/STAT packages were used to estimate genetic parameters and descriptive statistics. The estimated heritabilities for strain RB, YB, GB, B and W, respectively, for age at 1st egg were 0.24, 0.27, 0.12, 0.32 and 0.18; for body weight at first egg were 0.39, 0.43, 0.38, 0.52 and 0.57; for body weight at age of 270 days were 0.43, 0.51, 0.30, 0.52 and 0.67; for egg weight at first egg were 0.08, 0.13, 0.07, 0.06 and 0.07; for egg weight at age of 270 days were 0.37, 0.43, 0.22, 0.34 and 0.41; and for number of eggs laid by age of 270 days were 0.24, 0.25, 0.37, 0.36 and 0.30. The genetic and phenotypic correlations were also estimated.
Keywords: Korean Native Chickens; Genetic Parameters; DFREML

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