Relationship between milk productivity and live weight of red-and-white cows in JSC “Krasny Mayak”

In the Krasnoyarsk Territory, a genetically young red-motley breed of cattle has become widespread, which requires further improvement of the breed structure, creating diversity, increasing variability for the effective use of breeding and productive qualities. In the breeding factories of the region, specializing in raising this breed, milk yield per cow has been 5.8-6 thousand kg in recent years. However, the period of economic use of cows does not exceed 2.9 lactations. In the conditions of industrial milk production technology, characterized by a high level of mechanization and automation of labor-intensive processes, only animals with strong body composition are able to realize their high genetic potential in terms of productive qualities while maintaining good reproductive abilities and increasing productive longevity. Therefore, studies on the development of a type of cows with body conformation and composition which are most productive and well-adapted to the conditions of breeding are of particular importance and relevance.