Parameters of reproduction and dairy efficiency of cows of Black-motley breed with a different share of blood on Goldstein breed

Babaylova G.P., Usmanova E.N., Yamshchikova T.A.

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Influence of a different bloody ratio on Goldstein at cows of black-motley breed on parameters of reproduction and dairy efficiency is investigated. The greatest dairy efficiency is established at cows with bloody ratio of 75%. With increase in a bloody ratio on Goldstein a yield of milk and the period between calving is raised.

Keywords: black-motley breed, bloody ratio on Goldstein, dairy efficiency