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216.73.217.86
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SCIE SCOPUS
홀스타인 젖소의 비유초기 유량에 대한 유전 모수 추정
Estimates of Genetic Parameters for Cumulative Milk Yield of Early Stage in Lactation of Holstein Dairy Cow
안병석 , 최유림 , 최성복 , 전병순 , 김준식 ( B . S . Ahn , Y . L . Choi , S . B . Choi , B . S . Jeon , J . S . Kim )
UCI I410-ECN-0102-2008-520-001472523
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A total of 957 lactation records from 571 Holstein dairy cows were tested every 10 days from 1989 to 1997 at the National Livestock Research Institute. The cows were milked twice a day. A peak milk yield was found at 60 days in milk, and heritability of peak milk yield was 0.31, and the genetic correlation of cumulative milk yield of early stage of cows with 305DIM were showed to be 0.35 to 0.65. From these results, selection of cows could be made earlier by using milk records at earlier stages.

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