In the article are shown the materials of estimation of cows of Holstein breed on milk productivity for I-III finished lactations. It was found that the cows for the first lactation had a milk productivity at the level of 85% from the fullaged cows (at a rate of 70-75%), which amounted to an average of 8980.2 kg of milk with a fat content of 3.83%. Milk productivity of cows of III lactation averaged 10530.1 kg of milk. The parental index was at the level of 9720 kg by milk yield and 4.27% by fat content. Realization of genetic potential for milking of first-calves was 8980.2 kg, and cows for II-III lactation - 10081.8 and 10530 kg of milk, respectively. It was marked the cow nr. 5736, from which for 7 completed lactations (2135 days) was received 65274 kg of milk, the average daily milk yield for the whole period was 30.5 kg of milk.

In the article are shown the materials of estimation of cows of Holstein breed on milk productivity for I-III finished lactations. It was found that the cows for the first lactation had a milk productivity at the level of 85% from the fullaged cows (at a rate of 70-75%), which amounted to an average of 8980.2 kg of milk with a fat content of 3.83%. Milk productivity of cows of III lactation averaged 10530.1 kg of milk. The parental index was at the level of 9720 kg by milk yield and 4.27% by fat content. Realization of genetic potential for milking of first-calves was 8980.2 kg, and cows for II-III lactation - 10081.8 and 10530 kg of milk, respectively. It was marked the cow nr. 5736, from which for 7 completed lactations (2135 days) was received 65274 kg of milk, the average daily milk yield for the whole period was 30.5 kg of milk.