Efficiency of different forms of selection in breeding tatarstan type of dairy cattle

The paper presents the results of determining the effectiveness of different forms of selection in breeding Tatarstan type of dairy cattle. Studies have established that inbred cows were superior to outbred cows in terms of milk yield, milk fat and protein. The results suggest that inbred selection in dairy cattle breeding is not as dangerous a method as previously assumed. Inbred selection, especially in moderate and distant degrees, can be boldly and more widely used in breeding of Tatarstan type of dairy cattle.