The efficiency of genomic evaluation of the breeding value of Holstein sires in comparison with the evaluation by daughters

Genomic analysis is actively introduced into the practice of animal breeding in developed countries of the world, but in Russia this method is used only in some cases, and the breeders adhere to the classical method of evaluating sires by daughters. For this reason, the aim of the research in this scientific work was to compare the breeding value of the Holstein sires from the German population, which were genomically evaluated and evaluated by daughters. The scientific article presents the effect of genomic analysis of breeding value of Вlack-and-White and Red-and-White Holstein sires in comparison with the evaluation by daughters. Comparison of the values of the RZG, RZM, RZE, RZS, RZN, RZD, RZKd, RZR, RZFit and RZRobot indices in performing genomic evaluation and evaluation by daughters was made, and standard deviations and coefficients of variation of indices were analyzed. It was determined that the Вlack-and-White Holstein sires had all the indices studied for genomic evaluation (n=432) higher than those for the evaluation by daughters (n=467) - from 2.5 (RZD) to 14.7 (RZFit) and 15.9 (RZG). In this case, all differences were significant at p