EVALUATION OF BULLS OF DIFFERENT LINES ON THE FERTILITY OF DAUGHTERS

The article shows the influence of genotype of bulls on the reproductive ability of their daughters. Studies have shown that between the groups of bulls daughters breed differences in indicators of reproductive ability. Found that all groups of heifers with the exception of daughters of a bull Dowry 311 were characterized by practically identical values of the duration of pregnancy (P < 0,95), which was the average for all groups of heifers 279 days. The daughters of a bull Dowry 311 this figure was the short and 277 days, on average 3 days shorter than the daughters of all other bulls.