Article
Genetic parameters derived from using a biological model of lactation on records of commercial dairy cows.
Journal of dairy science - 1 Sept 2008
Albarrán-Portillo B, Pollott G E
Abstract excerpt
The object of this study was to investigate the genetics of lactation curve parameters derived from a biological model of lactation and the relationships among them. This biological model fitted 2 logistic curves to mimic the initial increase in milk secretory cell numbers in early lactation and the progression of apoptosis in late lactation. Records from 82,255 Holstein-Friesian heifers from commercial dairy...
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