The purpose of the work was to increase the effectiveness of rearing of young animals and milk production by providing dairy cows with easily digestible sugars obtained from local grain raw materials. The research on the use of grain molasses produced from rye grain in a pilot unit in the Sharkansky RTP UZHK-1000 in feeding cattle of Kholmogorskaya breed under the environments of the Udmurt Republic has been carried out. The innovative small-sized treacle unit operating on the basis of the principle of cavitation technology is designed for the enzymatic cleavage of grain polysaccharides to a more accessible form of sugars for assimilation. It has been revealed that the feeding of grain molasses to young cattle in the amount of 3 kg/head/day had a positive effect on the increase in the average daily gain of live weight and the intensity of growth of animals. In the first-calf heifers in control group the age of achieving the first insemination was 14,7 months with the live weight of 374,6 kg, in the first-calf heifers in experimental group it was 13,8 months, while their live weight was 378,2 kg. The insemination index in the first-calfheifers of the control group was satisfactory and amounted to 2,0, and in the cows of the experimental group it was good – 1,6 (P ≥ 0,95). The maximum milk productivity of first-calf heifers for 305 days of lactation has been recorded in the cows of the experimental group, where grain molasses was used, and amounted to 7702,0 kg, which was more than in the control group by 157 kg or 2,1% (P ≥ 0,95). Milk from cows of the experimental group was the most suitable for the production of fermented milk products. The physical and chemical parameters of milk were also higher in the group in which grain molasses has been fed. The lowest consumption of milk for the production of 1 kg of cottage cheese was noted in the experimental group of cows 6,43 kg, the same trend has been observed in the production of cheese where the consumption was 8,7 kg.