INFLUENCE OF THE FIRST FRUITFUL INSEMINATION AGE ON PRODUCTIVE LONGEVITY OF BLACK-AND-MOTLEY HOLSTEINISED COWS
Journal: Science and world (Vol.1, No. 38)Publication Date: 2016-10-20
Authors : Kopaneva Yu.V.; Babaylova G.P.;
Page : 72-73
Keywords : dairy cattle breeding; first fruitful insemination; productive longevity;
Abstract
In this article the influence of the first fruitful insemination age on productive longevity of black-and-motley holsteinised cows is considered.
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