The article shows the effect of the use of phytoadditives based on sandy sainfoin in the diet on the digestibility coefficient, on the dynamics of live weight and the natural resistance of the body of calves during the milk growing period. The studies were carried out in the conditions of the Perm Territory. In the course of the studies carried out on three experimental groups of heifers, 10 heads each, it was found that feeding phytosupplements in the amount of 0.150 kg and 0.300 kg per head per day had a positive effect on the digestibility coefficients, live weight and natural resistance of experimental animals.
calves, herbal supplement, sandy sainfoin (Onobrychis arenaria), digestibility, live weight, natural resistance
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