Study Regarding the Genetic Relationship between Broodmares from the Reproductive Nucleus of a Native Horse Breed

Abstract

Background: In this study we present a part of the genetic history of a native horse breed. Genetic analyzes are the basis of the development of strategies regarding the conservation of genetic resources and implicitly of inbreeding management plan. In this study we present another essential component of the inbreeding of a population, namely the inbreeding of broodmares themselves. Method: The method that we used in this study is based on A matrix coefficients. The research was carried out during 2012-2021, at Lucina National stud farm. The material was represented by a sample of 73 broodmares from the reproductive nucleus of the breed, from 5 bloodlines, analyzed on 5 generation of ascendants. The research was performed in the profile laboratories of the Faculty of Engineering and Management in Animal Production (Animal Sciences) from Bucharest. Results: The correlation between the breeding values of the reproductive active broodmares of Huþul from the Lucina stud, Suceava County, at the time of the analysis is 0.1875±0.0015. It was found the existence some differences between the values of the kinship coefficients of the mares born in different years, but the calculated value of the Fisher test (F= 1.3667NS) shows that the observed differences have no statistical significance.