The effect of soy molasses and probiotic additives on the productivity of dairy cows and the use of metabolic energy

The article presents experimental data on feeding dairy cows with a feed mixture containing molasses and a probiotic additive (with a daily feed mixture content of 216.0 - 216.5 MJ) and the effect of these additives on productivity, some indicators of milk quality and the use of metabolic energy in the body of cows. The feed mixture included feed grown on the farm, and additives were purchased from various companies. Feeding as part of a feed mixture for dairy cows with the addition of soy molasses in the amount of 500 g per day per head made it possible to increase the daily milk yield during the experimental period by 5.1%, and when included in the same composition of the feed mixture as in the control and second experimental groups, the probiotic additive in the amount of 60 g per day per head is 7.74% more than that of control analogues. As a result of an increase in milk yield in the experimental groups, the amount of fat and protein in milk was recorded to be 2.2% higher in the third group. Thus, the amount of milk fat in the second experimental group was higher by 2.2% and in the third experimental group by 4.5%, and the amount of protein was respectively higher by 2.0 and 2.9% compared to the control group. Having studied the distribution of metabolic energy in the body of dairy cows when fed soy molasses and the probiotic additive “Bacell - M”, it became obvious that feed additives had a positive effect on the economical consumption of metabolic energy for heat production, and improved the energy value of milk. As a result of feeding lactating cows with soybean molasses and a probiotic additive as part of the feed mixture, it was possible to obtain 1.6% more monetary revenue from the sale of the resulting products in the second experimental group and 3.2% more in the third experimental group.