Milk productivity and reproductive capacity in Holstein cows of Moscow region

Abstract

The article presents the reproductive quality indicators of the Holstein herd of APA (C) “Kuzminsky” (Moscow region) with different milk productivity levels. Some patterns have been identified for the herd, reflecting associations between reproductive and productive traits. The coefficient of the reproductive capacity ranges in the herd from 0.976 to 0.986, and the highest average rate was noted among cows with the highest milk yields in the herd. It’s noteworthy that the largest group (n=100) with an average level of milk yield per herd was characterized by the lowest coefficient. The average calving interval is 372 days, which can be explained by an extended service period; the dry period duration in cows with high milk yields is the maximum among the studied livestock.