Article
Effects of genotype by environment interactions on milk yield, energy balance, and protein balance.
Journal of dairy science - 1 Jan 2007
Beerda B, Ouweltjes W, Sebek L B J, Windig J J, Veerkamp R F
Abstract excerpt
Increases in genetic merit for milk yield are associated with increases in mobilization of body reserves. This study assessed the effects of genotype by environment (GxE) interactions on milk yield and energy and protein balances. Heifers (n = 100) with high or low genetic merit for milk yield were milked 2 or 3 times a day and received rations of low or high caloric density. The management factors were selected...
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