The purpose of the research was to study the influence of the intensity of rearing of replacement heifers on the formation of milk productivity of cows of Red-and-White. Data on the rearing of replacement heifers at different feeding levels have been given. Heifers of all experimental groups significantly exceeded their herdmates from the control group in terms of live weight at all age periods. For example, in the 1st experimental group at the age of 3 months the superiority was 18,3 kg, at 6 months it was 41,7 kg, at 9 months it was 55,0 kg, at 12 months it was 69,3 kg, at 15 months it was 80,3 kg and at 18 months it was 74,5 kg (P ≥ 0,999). In the 2nd experimental group the difference with the control was 8,8; 24,4 (P ≥ 0,99); 38,7; 48,9; 62,9; 56,2 kg (P ≥ 0,999), respectively, in the same age periods. In the 3rd experimental group the superiority was 5,7; 10,3; 22,5 (P ≥ 0,95); 27,6 (P ≥ 0,99); 42,9; 39,2 kg (P ≥ 0,999) and the 4th experimental group outperformed herdmates from the control group by 2,1; 4,3; 12,9; 10,4; 21,0; 21,7 kg (P ≥ 0,95), respectively, according to the age periods of the studies. Intensive rearing of heifers contributes to the formation of large cows, which affects their productivity. The highest milk yield rates for 305 days of the first lactation was obtained from cows of the 1st experimental group of 7559 kg, they exceeded analogues from other experimental groups by 375, 528 and 576 kg, respectively, and cows of the control group by 951 kg (P ≥ 0,99). Differences between the groups in the content of the mass fraction of fat and protein although they took place, but in general were statistically insignificant. It was found according to the results of the experiment that for cows with a milk yield of more than 8000 kg per lactation, the dry period should be at the level of 60–65 days, it is possible to adjust its value by the organizing one-day beginning of the dry period. The results obtained indicate the expediency of early introduction of replacement heifers into the milking herd for the rapid increase in milk production.