EVALUATION OF THE EFFECT OF A TYPE OF output SYSTEM OF DEPLOYMENT AND FOLDING OF THE WALL OF THE RUGOSITY PART OF THE MILK CISTERN ON THE EVOLUTION OF HYPERCEROTIS IN HIGH-PRODUCTIVE COWS
The article discusses the features of the morphological structure of the excretory system of the udder and the folding of the wall of the teat part of the milk tank using ultrasound scanning to determine the effect of these parameters on the state of the teat of the udder. The distribution of various types of the structure of the outlet system among the cows of the Middle Urals, the distribution of branching types in quarters of the udder has been determined. The data obtained in the course of the study showed that the main type of branching of the milk passages is recorded mainly in the anterior lobes of the gland, the mixed type is represented almost identically in the anterior and posterior quarters - 31.8 and 45.4 %, respectively, and the loose type is most often visualized in the posterior lobes udder With different types of branching, there is a different degree of folding of the wall of the teat part of the milk cistern - with the trunk type of branching moderate folding is predominantly recorded, with a mixed type - the number of teat with pronounced folding increases, with a loose type of nipples with no folding accounted for 50 % respectively. The relationship of the types of branching of the milk passages and the degree of folding of the teat part of the milk tank with the development of hyperkeratosis of the udder nipples has been established. At the same time, there is a high risk of hyperkeratosis in the teat udder with cows with a loose type of branching of the excretory milk ducts and with an increased folding of the teat part of the milk cistern/