Influence of liquid feed additive «Active Mix» VM 10/20 on morphological and biochemical indicators of blood of calls

The new liquid vitamin and mineral feed additive «Active Mix» VM 10/20 was used when raising Holsteinized Kholmogory bull calves up to 15 months of age. The study was carried out on 20 animals, which were divided into experimental and control groups of 10 animals each. The bulls of the experimental group, starting from one month of age, were given a feed additive according to the recommended schedule. In animals of this group, within a month it was possible to stop the manifestations of a lack of vitamins and microelements. A biochemical blood test revealed a significant decrease in ALT and AST activity compared to the control, and an increase in total protein. Hematological examination revealed an increase in hematocrit and the content of hemoglobin and erythrocytes, a decrease in the total content of leukocytes and their populations.