The influence of the level of milk productivity on the electrocardiographic indicators of jersey cows with different vegetative status

Heart research is important in veterinary practice due to insufficient attention to heart disease in cattle at the present stage of development of veterinary medicine. Analysis of heart rate variability (HRV) is a widely used method in medical practice to assess autonomic regulation and the state of the heart. Mathematical analysis of heart rate rhythms to determine the state of the autonomic nervous system is important for the pathogenetic treatment of many diseases. At the present stage of development of society, an important place is occupied by the issue of meeting the needs of the population in dairy products. For this reason, the livestock industry is developing rapidly. However, when improving dairy cattle breeding, it is necessary to take into account the physiological capabilities and characteristics of animals at all stages of Otheir ontogenesis. The study of the cardiovascular system is of great importance in veterinary medical and preventive work.