Polymorphisms in Several Porcine Genes are Associated with Growth Traits

The purpose of this study was to confirm the relation between polymorphism of POU1F1, GH, PRLR and MC4R genes and economically important traits of the Duroc pigs bred in Russia. Studies were carried out on purebred Duroc breed pigs (male n = 360). All pigs were kept under identical and standard conditions. The traits of analysis: The number of Days to 100-kg (Days to 100 kg), Average Daily Gain (ADG), Length of Body (LB) and Backfat Thickness (BF). The additive and dominance effects of genes were calculated. The signification effects were found for POU1F1 on LB (a = 0.75); GH on Days of 100 kg (a = 2.43), LB (d = 0.71); PRLR on Day of 100 kg (d = 1.11) and ADG (d = -29.73); MC4R on Days of 100 kg (a = 2.58; d = 2.49) and LD (d = -0.83). Our result showed the influence of POU1F1, GH, PRLR and MC4R on the growth trait and perceptivity of their use in breeding programs.