GENETIC FEATURES OF PIGS OF DIFFERENT BREEDS SIBERIA

Abstract

In pig breeding, along with the assessment of breeding value by statistical methods, the use and search for genetic markers responsible for fertility, intramuscular fat content, stress, and other diseases is becoming increasingly important. In their studies carried out on pigs of different breeds of Siberia, such as Large White (LW), Kemerovo (K), Pietrain (P), Duroc (D), Landrace (L), Canadian Yorkshire (Y) and various hybrids, the authors identified certain relationships. The authors found such relationships between growth rate, fat thickness, stress resistance, fatty acid composition, palatability of meat and back fat on the one hand, and the frequency of occurrence of erythrocyte antigen (EA) genotypes - blood groups, erythrocyte enzymes (EsD, Gpi, 6 -pgd, Ada), genes of ryanodine (RYR-1), estrogen (ESR) receptors, genes of the fatty acid binding protein family (H-FABP), genes associated with the susceptibility of piglets to diarrhea (ECR F18/FUT1), markers of efficacy growth and obesity (LEP), meat productivity (MC4R) and others - on the other hand. The frequency of occurrence of genotypes of DNA markers in pigs with different stress sensitivity was studied. The change in the frequencies of some markers in the process of absorption crossing and subsequent selection over several generations was determined.

Keywords

• agriculture breeds
• blood groups
• erythrocyte enzymes
• genetic markers
• fatty acids
• growth rate
• породы
• группы крови
• эритроцитарные ферменты
• генетические маркеры
• жирные кислоты
• скороспелость
• плодовитость