Nitrogen balance in energy-carbohydrate-fed cows

Abstract

Abstract Enriching the diet of cows with nutrients and energy is an urgent task facing livestock specialists. In this regard, we propose to use a new type of feed in the diet of cows. For this purpose, using the software package, a ration balance was made for cows of black and motley breed. The differences were that different doses of the new “Tanrem” energy-carbohydrate feed were administered to the cows of the experimental groups. When analyzing the structure of the diet, it was found that in the pasture period a significant proportion falls on succulent feed, and in the stall - on rough and concentrated. It should be noted that both in the grazing and stalling periods, cows show a decrease in the proportion of succulent feeds with the introduction of the studied additive. Calculation of nitrogen balance showed that in all animals participating in the experiment, it was positive. In this case, nitrogen was best used from the accepted and from the digested cow of the three experimental groups, worst of all - control animals. The maximum effect was shown by the supplement at a dose of 700 g per day per animal. Further research will focus on the study of milk productivity and the quality of dairy products of cows.