A dynamics of live weight of cows of ukrainian black-and-white dairy breed is in a period of their growing

I. V. Novak, V. V. Fedorovych, E. I. Fedorovych, M. I. Kuziv

Live weight, multipleness of its increase, average daily gains, relative growth speed, and also changeability of above-mentioned indexes, was studied for the cows of different genotypes of the Ukrainian black-and white dairy breed in the period of growing. It was established that with the increase of conditional part of blood of golshtyn breed live weight of animals was increased. this This index was most in all investigated age-old periods is marked for heifers with blood after golshtyn breed 75 % and anymore. Most changeability of live weight and multipleness of its increase observed in 6-monthly age experimental animals.

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