EFFECT OF OXIDATIVE STRESS ON IMMUNE DEFENSE OF THE CATTLE
The animals begin to experience the effects of stress factors, which cause tension of adaptation processes. This article discusses the issues related to the diagnosis of oxidative stress in imported cattle imported from the west Europe. Explains the needs for a comprehensive study of animals. When studying the adaptation processes, it was found that cattle with intensive milk production technology were influenced by stress factors. In the studied animals, there was a significant decrease in segmented lymphocytes by 25%, and an increase increase in MDA by 2.3 times compared with the norm. Increased activity of oxidative processes was investigated based on the analysis of the concentration of malondialdehyde (MDA) and antioxidant activity of blood plasma. Changes in the above indicators indicate a decrease in the stress response in the body of animals.