Article
Across-country test-day model evaluations for Holstein, Nordic Red Cattle, and Jersey.
Journal of dairy science - 1 Feb 2015
Lidauer Martin H, Pösö Jukka, Pedersen Jørn, Lassen Jan, Madsen Per, Mäntysaari Esa A, Nielsen Ulrik S, Eriksson Jan-Åke, Johansson Kjell, Pitkänen Timo, Strandén Ismo, Aamand Gert P
Abstract excerpt
Three random regression models were developed for routine genetic evaluation of Danish, Finnish, and Swedish dairy cattle. Data included over 169 million test-day records with milk, protein, and fat yield observations from over 8.7 million dairy cows of all breeds. Variance component analyses showed significant differences in estimates between Holstein, Nordic Red Cattle, and Jersey, but only small to moderate...
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