The use of methods of intrapopulation selection and correlation analysis in assessing the reproductive qualities of pigs of production lines in the Belarusian breed type of Yorkshire breed

UDC 636.424.1.082: 575.17 (476)
DOI: 10.26155/vet.zoo.bio.202002009

Authors

A. A. Bal'nikov
Candidate of Agricultural Sciences, Leading Researcher at the Laboratory for Breeding and Breeding Pigs, Scientific and Practical Center of the National Academy of Sciences of Belarus for Livestock,
E. S. Gridyushko
Candidate of Agricultural Sciences, Leading Researcher at the Laboratory for Breeding and Breeding Pigs, Scientific and Practical Center of the National Academy of Sciences of Belarus for Livestock,
I. F. Gridyushko
Candidate of Agricultural Sciences, Leading Researcher of the Laboratory for Breeding and Breeding Pigs, Scientific and Practical Center of the National Academy of Sciences of Belarus for Livestock

Abstract

Breeding and breeding work in pig breeding is based on the determination of a large number of productive qualities of animals, as well as on the establishment of a connection between characters. A wide range of relationships is determined by the application of methods of correlation analysis, which helps to identify factors that most significantly affect the productive trait and the establishment of unknown cause-effect relationships between the studied traits.
The article presents the results of studying the indicators of variability and determining the degree of correlation of various traits of sows' productive qualities, as well as assessing the selection and genetic parameters of heritability of the main traits of the productivity of repair young stock of new factory lines in the Belarusian breeding type of Yorkshire pigs.

Keywords

Yorkshire breed, Belarusian factory type, reproductive qualities of sows, breeding, breeding, variability, correlation, heritability, regression analysis.