Reproductive qualities of sows depending on their breed
The combination of different breeds makes it possible to improve the breeding and productive performance of pigs. The leading place is occupied by large white pigs, whose share in the industry is about 90 %. The Landrace breed is widely used to breed new lines and improve the meat qualities of Siberian pig breeds. The purpose of the study is to study the reproductive qualities of sows depending on their breed. For research, four groups of animals were formed, taking into account age, live weight, genotype: purebred sows of the Large White breed and crossbred ones obtained from crossing dams with Landrace boars. It was established that the crossing of Large White dams with Landrace boars had a positive effect on reproductive performance. Crossbreeds surpassed purebred animals in terms of multiple pregnancies, live weight and body length. The live weight of piglets at weaning from crossbred sows was higher by 4.36 and 1.61%, respectively.