Abstract
Agriculture is considered an important industry for Kazakhstan. Consumer demand for livestock products (beef and dairy cattle) is very high. Protein-vitamin feed additives are of great importance in the breeding of meat and dairy animals. Feed additives not only increase live weight gain, but also strengthen the immunity of animals and increase resistance to adverse environmental factors. The article discusses the results of experimental studies on the influence of a feed additive of a new composition on the physiological condition of horses on the yield and quality of meat products. As an obyect, horses of the Kazakh breed aged 1.5-2.0 years were selected, that located in the stall. Based on the study of blood composition, an increase in the values of erythrocytes, hemoglobin, leukocytes and platelets was revealed in the experimental groups of horses taking the feed additives, compared with the animals of the control group. This indicates the activation of immunity and the improvement of protein-carbohydrate metabolism in horses of the experimental groups. The purpose of the research work is to study the effect of a protein vitamin mineral feed additive on the meat and productivity of horses. This feed additive allows you to expand the range of feed additives that increase the live weight gain of farm animals.