Holstein 종의 경제형질에 대한 유전모수 추정에 관한 고찰 = Review on Estimates for Genetic Parameters of Economic Traits in Holstein : Review

다국어 초록 (Multilingual Abstract)

The genetic improvement of dairy cattle can be efficiently achieved through various factors including selection model and genetic parameters. Especially the use of accurate parameter estimates in genetic evaluation models is essential. The average of estimated hetitabilities for milk yield, milk fat, and milk protein were 0.322, 0.324, and 0.281, respectively, for foreign studies and 0.261, 0.241, and 0.251, respectively, for domestic studies. For milk contents(%), the heritability estimates of fat percent and protein percent were 0.586 and 0.583 from foreign studies and 0.410 and 0.417 from domestic studies, respectively. The genetic correlation coefficients of milk yield with fat yield, protein yield, fat percent, and protein percent were 0.668, 0.843, -0.444, and -0.468, respectively, from foreign studies and were 0.61, 0.838, -0.533, and -0.292, respectively, from domestic studies.