The current stage of development of cattle breeding is characterized by increasing demands for a quantitative increase in production, improvement of its quality and cost reduction. The Amur region belongs to the biogeochemical region with a deficiency in the agrosphere of all standardized microelements. In this regard, the problem of providing adequate nutrition for animals, including cattle, should be addressed through the production of balancing feed additives. In the conditions of theregion, it is possible to use feed additives made from natural feed resources in animal feeding as a source of biologically active substances. These can be red anfeltia alginates and dihydroquercetin. In order to study this issue, scientific, economic and physiological experiments were carried out in the conditions of LLC “Priamurye”. To achieve the set goals and objectives, three groups of clinically healthy replacement heifers of the red-and-white breed at the age of 10 months, 10 heads each, were formed according to the principle of analogues. Higher rates of average daily gain were obtained in the second experimental group, where heifers received red ahnfeltia alginates together with dihydroquercetin instead of premix P 62-1. When analyzing the exterior, the replacement heifers of the control group were inferior to their herdmates by the main measurements of height at the withers and rump, depth and width of the chest, girth of the chest behind the shoulder blades, oblique length of the body, width in makloks and girth of the metacarpus. It has been established that the inclusion of experimental additives in the diet, which contain normalized microelements in organic form, contributed to an increase in the digestibility of dietary nutrients in animals of the experimental groups. The use of normalized microelements in organic form as part of non-traditional feed resources in diets for cattle contributes to a significant increase in growth, the development of replacement young animals, and the intensity of metabolic processes.

Tuaeva Evgeniya V., Sogorin Sergei A., Gerasimovich Aleksandr I., Perepelkina Lyubov I., Kalinina Tatiana I.

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