Analysis of A.YA. Kaplan HRV Parametres of Jersey Breed Cows With Different Vegetative Status

Abstract

The article reveals the possibilities of cardiointervalometry using the modern complex electrophysiological laboratory “CONAN - 4.5”. In modern economic conditions, the intensification of animal breeding requires deep and all-sided knowledge of many sciences, especially biology and physiology. The body of an animal consistently undergoes interrelated morphological, biochemical and functional changes that provide functional reserves such as energy, metabolic and informational resources. The adaptation mechanisms and cattle economic use duration in modern conditions of industrial production of livestock products depend on the nature and severity of these reserves. The estimation of slow and fast-wave components of variability of the cardiointervals is carried out - the numerical values of A. Kaplan’s parametres of heart rate variability (respiratory modulation index (RMD), sympathoadrenal tonus index (SATI), slow wave arrhythmia index (SWAI)) of Jersey cows, which reflect the activity of the sympathetic and parasympathetic vegetative nerve system. Mathematical processing of heart rate variability with application of R.M. Baevsky’s method was used in the study. The test group of Jersey cows was divided into subgroups based on the tension index, and initial vegetative statuses were established on its basis. The distribution of the studied group of Jersey cows based on the tension index of regulatory systems was confirmed by statistical processing using the classification matrix, which was 91.26% and with the square degree of Mahalonobis distance D2 between the groups. The obtained statistically processed data in the course of the scientific research have true meaning. In this work, the analysis of the obtained numerical values of of A.Ya. Kaplan’s parametres was carried out and the relationship between the initial vegetative tonus of Jersey cows and the obtained values was considered.