EVALUATION OF SWINE PERFORMANCE BASED ON SELECTION AND GENETIC TECHNIQUES AND METHODS

Abstract

There have been determined the optimal performance parameters for swine of maternal breeds used in pedigree swine breeding, based on selection and genetic techniques and methods. Analysis of the association of polymorphic variants of marker genes with reproductive, fattening and meat traits of sows has shown that the RYR1NN, ESRBB and ESRАВ, H-FABPHH and H-FABPdd genotypes have beneficial effects in the context of stress resistance, prolificacy, litter weight at weaning, average daily gain, feed expenditures per unit of gain, backfat thickness over the 6-7th thoracic vertebrae, the weight of backgammon. Molecular genetic testing of sows for these genes will make it possible to improve reproductive (by 13.3-21.0%), fattening and meat traits (by 2.7-10.8%).