Study of the influence of origin on productive and reproductive qualities of high-productive cows

The article describes the reproductive performance of high-performance cows. It has been established that for the most indicators of reproductive ability (age of first insemination, body weight, reproductive capacity, etc.), high-yielding cows show high fitness for loose clothing. It is established that the reproducible ability is largely determined by the duration of the dry period. Thus, in this article the problem of the reproductive ability of high-productivity cows is discussed, several calculations and tables are given that give answers to the questions posed.