Relationships between productivity signs in dairy cattle

The purpose of the study is to determine the limits of variation in the relationship between the productive qualities of the population of black-and-white and red steppe cattle in the Omsk Region. The research period is 2018-2020. The object of observation was the population of Black-and-White (n = 710 heads) and Red Steppe (n = 1978 heads) breeds. A weak negative relationship was established between the main indicators of milk productivity. Regardless of the breed, the level of productivity of animals and the technological features of enterprises, there is a low negative direction of the correlation of milk yield with the mass fraction of milk fat (-0.28 at P