Abstract
The article deals with influence of pedigree of breeding bulls on indexes of economic and useful signs of red-and-white cattle breed. The degree of realization of the genetic potential for milk productivity in the descendants of red-and-white cattle breed bulls is almost 20% higher than in cows obtained from Holstein producers, with minimal differences in the indicators of average productivity of heifers. The duration of economic use of cows and the yield of milk for 1 day of life is significantly higher than that of cows obtained from Holstein bulls. In the total variance of traits, the breed of the breeding bulls affects the indicators of milk productivity by no more than 6.3%, and the reproduction quality by no more than 4.2%.
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