Clinical and physiological state and growth dynamics of calves against the background of immunocorrection of the body of mother cows

Immunocorrection of the body of mother cows is promising and requires research, in order to ensure the health and high productivity of calves obtained from them. The aim of the study was to evaluate the effect of immunocorrection of the body of dry cows with Prevention-N-E and Prevention-V preparations on the clinical and physiological state and growth dynamics of calves obtained from them. According to the principle of analogues, 3 groups of cows with 15 heads each were formed (control, 1st and 2nd experimental). The cows of the 1st experimental group were injected intramuscularly with the immunotropic drug Prevention-N-E at a dose of 10.0 ml per head three times 60, 50 and 40 days before calving. The cows of the 2nd experimental group were injected with the drug Prevention-V according to the same scheme. Immunotropic drugs were not used in cows of the control group. The calves obtained from cows of the experimental groups were monitored up to 180 days of age, the indicators of clinical and physiological condition, morbidity and effectiveness of therapy were taken into account, and growth dynamics were evaluated. It was found that the immunotropic drugs Prevention-N-E and Prevention-V, with intramuscular triple injection to dry cows, contribute to obtaining healthier offspring and further reducing the incidence of calves and significantly reducing their recovery time. By reducing the risk of diseases, including repeated ones, both the number of diagnosed cases of pathologies of non-infectious etiologies and the number of sick calves decreased in the experimental groups. The young of the experimental groups at all times of the study surpassed their control peers in terms of body weight and the value of its average daily gains.