Interior profile of young pigs of different genotypes and the use of its components for early prediction of quantitative characters

Abstract

The paper presents the research results of blood serum biochemical parameters, as well as fattening and meat qualities of Large White young pigs of different genotypes by melanocortin receptor gene 4 MC4R; the level of phenotypic consolidation of quantitative characters is calculated and their correlations are determined. It was found that the serum biochemical parameters of young pigs from the experimental groups correspond to the physiological norm of clinically healthy animals. Studies have shown that animals of the MC4RAG genotype exceed significantly their peers of the MC4RAA genotype in the age of achievement of live weight of 100 kg, in fatback thickness at the level of 6-7 thoracic vertebrae and in the length of the chilled carcass by 4.47% on average. The coefficients of phenotypic consolidation of fattening and meat qualities of young pigs from the experimental groups ranged from -0.101 to +0.370. The number of significant correlations between serum biochemical parameters, fattening and meat qualities of Large White young pigs of the MC4RAA genotype is 26.67%, of MC4RAG genotype is 33.34%. This indicates the possibility of using interior indicators for early prediction of fattening and meat qualities of Large White young pigs. The maximum increase in additional products was obtained from Large White young pigs of the MC4RAG genotype by the melanocortin receptor gene in amount of +2.02%.