Article
Neglect of lactation stage leads to naive assessment of residual feed intake in dairy cattle.
Journal of dairy science - 1 Nov 2017
Li B, Berglund B, Fikse W F, Lassen J, Lidauer M H, Mäntysaari P, Løvendahl P
Abstract excerpt
Residual feed intake (RFI) is a candidate trait for feed efficiency in dairy cattle. We investigated the influence of lactation stage on the effect of energy sinks in defining RFI and the genetic parameters for RFI across lactation stages for primiparous dairy cattle. Our analysis included 747 primiparous Holstein cows, each with recordings on dry matter intake (DMI), milk yield, milk composition, and body weight...
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