Article
Short communication: Genetic parameters of production traits in Chinese Holsteins using a random regression test-day model.
Journal of dairy science - 1 Sept 2009
Miglior F, Gong W, Wang Y, Kistemaker G J, Sewalem A, Jamrozik J
Abstract excerpt
The objective of this study was to estimate genetic parameters of production traits in the first 3 parities in Chinese Holsteins. Data were a random sample of complete herds (109,005 test-day records of 9,706 cows from 54 herds) extracted from the original data set, which included 362,304 test-day records of 30,942 Holstein cows from 105 herds. A test-day animal model with multiple-trait random regression and the...
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