Influence of genital Mycoplasmosis in cows on indicators of cellular immunity of their offspring

Abstract

Obtaining healthy offspring with good productive qualities is an urgent task in the conditions of modern animal husbandry. Any diseases of pregnant animals affect the fetus to varying degrees. In this regard, of particular interest is the study of the state of cellular immunity of calves in the presence of genital mycoplasmosis in their mothers. Studies were carried out on 7–9-day old calves obtained from cows with genital mycoplasmosis and healthy cows. The presence of genital mycoplasmosis was confirmed by a PCR test for Mycoplasma spp., followed by serological identification of M. bovigenitalium. In calves, the absolute content of lymphocytes, the relative and absolute content of T- and B-lymphocytes were determined. The results of the study show that genital mycoplasmosis in mother cows leads to a deficiency of cellular immunity in their calves, which is manifested by a significant decrease in both the absolute and relative content of lymphocytes, as well as an imbalance in their subpopulations.