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Researchers pay much attention to productivity aspects of cows of various breeds and are looking for approaches to its growth. The milk productivity of lactating cows of black-motley breed is a very important economic indicator, which they are constantly trying to increase by selecting young animals for the breeding process and economic use. When evaluating the economically useful qualities of black-motley cows contained in standard conditions of Russian households, they have excellent reproductive qualities. They turned out to be characterized by high levels of milk yield, mass fraction of fat in milk and the amount of milk fat received. The examined cows showed correlation between the volume of milk yield for the first, second, third and highest lactation with the level of milk yield in the second, third and highest lactation, as well as with the mass fraction of fat and live weight of the animal. Considering the obtained data, it can be considered that selection of cows of black-motley breed should be carried out taking into account the volume of milk yield during the first lactation, which positively correlates with the size of milk yield for subsequent lactation, with the level of live weight and with the level of butterfat for the period of the second and third lactation.

The level of productive qualities of cows of black-motley breed contained in standard conditions of Russian farms