Specialists at pig farms in the Republic of Belarus often purchase breeding animals of foreign selection to increase the livestock. Meanwhile, Belarusian pig breeds have obvious competitive advantages over their foreign counterparts, and this factor shall be considered. The perfect parameters of performance of pigs of maternal breeds used in pedigree pig breeding based on selection and genetic techniques and methods are determined. It was established that decrease in reproductive traits with increase in fattening performance is typical of animals of domestic maternal breeds. Criteria for selection of breeding animals of maternal breeds have been developed taking into account their polymorphism according to gene markers of reproductive, fattening and meat traits. The preferred B allele of the ESR gene and the recessive Q allele of the IGF-2 gene should prevail in the maternal line genome. In the paternal lineage genome, the proportion of the preferred Q allele of the IGF-2 gene should be increased in order to improve the fattening and meat traits.