Article
Genetic profile of total body energy content of Holstein cows in the first three lactations.
Journal of dairy science - 1 Jul 2005
Banos G, Brotherstone S, Coffey M P
Abstract excerpt
Weekly total body energy content (TBEC) was calculated for 444 Holstein cows in their first 3 lactations. These calculations were based on body lipid and protein changes predicted from weekly changes in body condition score and live weight of each cow. In first lactation, cows lost TBEC during the initial 8 wk, regained it by wk 22, and continued to build up their reserves until wk 37. Cows started lactations 2...
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