Influence of significant factors on the fertility of cows, justification of measures for its optimization

The economic efficiency of dairy cattle breeding depends on a variety of production factors. Together with increasing the genetic potential of productivity, strengthening the food supply and other conditions for increasing milk production, the prevention of cow infertility is one of the main problem tasks. The level of productivity of dairy cows and gross milk production are largely dependent on the implementation of reproductive capacity — the ability of animals to reproduce. It has been proved by science and practice that the milk productivity of an average annual cow of a cow is equivalent to 0.5 of a milking (non-mallow) productivity. Every 3% barley of cows in a herd reduces gross milk production by about 1% at least. The aim of the research is to determine the degree of influence of particularly significant factors affecting the state of animal fertility, ensuring an increase in the productive longevity of cows, the amount of milk production and loss reduction, to substantiate methods and techniques for optimizing the technological parameters of the factors under study at minimum production costs. The results of processing the materials of the performed experiment indicate that the “maintenance” factor takes the second place, after the “feeding” factor, in terms of the degree of influence on the optimization parameter “fertility”. The results of the study were used to substantiate and develop recommendations for reducing the level of the barking of the dairy herd. In production, functional forms in the form of so-called production functions are used to establish and analyze dependencies. A very convenient and most common is an analytical form, is a mathematical model of a multifactor process, in the form of an equation establishes a relationship between the studied characteristics, which allows calculating the expected value of the result of production depending on the existing factors