Interbreeding as a method for increasing cows` milk productivity

Research has been carried out as a production experience to study the milk productivity of cattle depending on a method of breeding under the conditions of the Omsk Region. It has been found that the first-generation crossbreeds resulting from interbreeding of Holstein black-and-white cows with Jersey bulls surpass their black-and-white peers in the mass fraction of milk fat by 0.75%, in the mass fraction of milk protein by 1.04% for the first 100 days of lactation. The highest values of milk fat and protein yield have been noted in half-blooded cows of the Jersey breed, and these indicators are more due to fat and protein-milk content than to the milk yield level.