Pelykh V. Theoretical substantiation and practical realization of perfected selection methods in pig breeding

Research area: regularities of selection process aimed at an increase in the genetic productivity potential of the promising gene pool of pigs. Research objective: improvement of techniques of using the gene pool of pigs, theoretical substantiation of expediency of introducing new signs into selection programs. Methods: methods of zooengineering research, computer modeling, DNA-tests.Results: a scientific concept of using the promising gene pool of pigs has been theoretically substantiated, developed and utilized through the improvement of methods of determining the pedigree value of animals and effective variants of breed - linen hybridization. Novelty: lies in the fact that additional selection criteria are proposed for each selection cycle: litter uniformity, sex ratio in it, level of sex dimorphism at the weaning time. Regularities of formation and realization of the genetic productivity potential of pigs under different breeding methods were revealed. Methods of the genotype evaluation of animalstaking into account the type of sign heritability were perfected. Introduction extent: an all-Ukraine selection and technological project to raise the productive properties of pigs has been developed and introduced. It was considered and approved by the committee of livestock and poultry production and processing of the scientific and technical council of the Ministry of agrarian policy of Ukraine. Application sphere: regional programs of purebred breeding and breed-linen hybridization in pig rearing, pedigree farms.