Indicators of protein metabolism of heifers during pregnancy and under the influence of biotechnical treatments

Abstract

The problem of the reactivity of the organism and ways of its increase, the features and significance of immune reactions in all stages of reproduction, from gametogenesis to postnatal development, attracts great attention of scientific and practical workers in animal husbandry. In this regard, it is extremely important to know the state of a pregnant female in a particular period of her ontogenesis. Therefore, the study of biologically active substances (BAS), which can act on biological systems, regulating their vital activity, is of fundamental importance. In particular, it was important to find out whether under the influence of vitamin A and trivitamin (vitamin A, D3, E) a change in the antigenic structure of proteins already present in the blood serum of animals occurs. Blood serum proteins, as well as other biochemical and physiological constants, undergo various changes in the animal body depending on the action of external and internal factors; they are directly dependent on the function of the organs of reproduction. The nature and direction of metabolism, especially protein metabolism, change during pregnancy with the development of the embryo in the mother's body is investigated. As it is now known, along with the nervous and endocrine systems, the immune system also participates in all links of the reproductive potential, but its changes in this case and under the influence of biotechnical means of reproduction control have not been studied enough. In this regard, it is of theoretical and practical interest to provide the breeding stock with vitamins and increase the metabolism of the main substrate of life - protein, change its biological functions, as well as to study some issues of the relationship between the mother's organism and the nascent offspring when exposed to the body of pregnant animals with biologically active substances. The results obtained in our experiments indicate that the state of pregnancy has an impact on the nature of the protein metabolism of pregnant animals, in this case – in the direction of strengthening the processes of assimilation in the body of animals of the experimental groups, which, in our opinion, takes place especially in the first half of pregnancy (up to 6 months).