HEMATOLOGICAL PARAMETERS OF KAZAKH WHITE-HEAD HEIFERS FED THE "BIODARIN" FEED SUPPLEMENT
The effectiveness of the protein-vitamin-mineral probiotic BioDarin added in the doses of 0.5, 1.0 and 1.5 kg per 100 kg of grain mixture on the hematological indices of Kazakh White-Head heifers has been considered in the article. As result of studies conducted it was found that the content of erythrocytes, hemoglobin and leucocytes in animals’ blood was increased in the spring period. There was also observed increased content of total protein in blood serum of heifers in spring as compared with the autumn period. The analysis of intergroup difference in the total protein content in blood serum showed the comparative advantage of heifers having been fed the BioDarin supplement. The results of studies are indicative of a higher level of productivity in experimental groups fed diets including the feed additive.