Demus N. 3. The age dependence of the morphological status of heifers, their heart and arteries of the type of autonomous regulation of cardiac rhythm.

3. Object of search - heifers morphological status, their hearts and arteries depending on the animal age and the type of autonomic regulation of heart rhythm. Purpose of work - to define the age dependence of heifers morphological status, their hearts and arteries from the type of autonomic regulation of heart rhythm. Methods of search - clinical, method of variation pulsometria by R.M. Bajevskyj (1984), anatomical, histological, morph metrical, statistic. For the first time, it was done the complex morphological investigation of heifers hearts and arteries of Black-Spotted breed, their morphological status, depending on the type of heart rhythm autonomic regulation. It was found out the peculiarities of morphological heart structure, morphological indices of its different chambers and the characteristics of microscopic structure and morphological indices of myocardium of heart chamber depending on the type of heart rhythm regulation. To settle the type of heifers heart rhythm autonomic regulation of Black-Spotted breed at the age from 2 to 8 months, for the first time it was used the methods of variation pulsometria. Got results of the research due to the connection between the type of Autonomic regulation of heart rhythm and the indices of economical and useful features (body mass and animal exterior), and also the heart structure and vessels characteristics give the possibility to form herds of high productivity of heifers - norm tonic and parasympathycotonic during the selective and breeding work. We should use the results of the research in scientific investigation during the formation of control and experimental groups taking into account the morpho-functiional peculiarities of their organism, depending on the type of heart rhythm autonomic regulation. Introduction - the results of the scientific search are used in the scientific process and scientific and research work of 13 structural departments of Institutes and Research Institutes of Ukraine, Belarus Republic . Sphere (branch) of using: Veterinary Medicine