[Meat productivity of black-motley young cows and Hereford hybrids]
2008
Linnik, L.M. | Zayats, O.V. | Slavetskij, V.B., Vitebsk State Academy of Veterinary Medicine (Belarus)
The article examines questions of increasing the level of meat productivity and improving the quality of produced beef depending on the content of energy in rations of Hereford black-and-motley bulls while creating a beef cattle herd. It was that crossing of black-and-motley breed with Hereford one helps to increase natural resistibility of organism in crossbred animals. Crossbred Hereford black-and-motley bulls should be intensively grown with size of daily average gain 1000 g and more at maintenance of a diet by exchange energy on 100 kg of live weight 19,5 MJ and above, that promotes increase in level of meat efficiency. Black-motley bulls of the same age had more low a daily average gain on 9,8%, weight of the carcass - on 24,3%, an output of the carcass - on 2,9% , an meat index - on 22 1% under identical conditions of growing with Hereford black-and-motley bulls
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