Study of the main body dimensions that are used in the selection process, in the reproductive nucleus of the Nonius horse from Izvin studfarm

Regarding to a population, the average of phenotypic value is equal with average of genotypic value and that minds that the study of average performances in a population have a huge importance. So, the studies of the average values of characters offer us an idea about the population genetic level. This study have the principal purpose to analyse main body dimensions who are used in selection process: withers height, thoracyc perimether and cannon bone perimether, through the integration of individs in an evaluation class, in accordance with selection methodology. The biological material is represented by 35 Nonius horses, 4 males and 31 females, at different ages, owned by Izvin stood farm, representing the entire reproductive nucleus. The average performances of characters are presented in the paper. We can observe a small grade of variability with some differences between sexes. The average performances of the characters are between characteristic limits of the breed