Indicators of digestibility and metabolism of nutrients, productivity of sheep when feeding them unconventional feed additives in Yakutia

This article presents the results of studies to determine the effectiveness of non-traditional feed additives from local natural raw materials in feeding sheep in Yakutia. According to the scheme of the scientific experiment, sheep from the control group consumed the feed of the main diet, while animals from the II and III experimental groups received non-traditional feed additives together with the main diet. In the course of the research, the influence of feeding conditions on the change in live weight, as well as on the indices of the digestibility of nutrients, the exchange of nitrogen, calcium and phosphorus in the body of sheep, was determined. The inclusion of non-traditional feed additives in the daily ration of sheep contributed to an increase in live weight by 3.73% and 0.88%. The study of the indices of the digestibility of nutrients in experimental animals established the difference in the superiority of the experimental groups over the control group in dry matter by 6.15% and 4.19%, organic matter by 4.99% and 3.89%, crude protein by 7.67% and 5.5%, crude fat by 3.04% and 2.7%, crude fibre 2.43% and 1.46% and nitrogen-free extractives 6.47% and 5.51%. When comparing the indices of the digestibility of nutrients between the experimental groups, the difference in superiority in all parameters of animals in the III experimental group over the sheep in the II experimental group in dry matter 1.96%, organic matter 1.1%, crude protein 2.17%, crude fat 0.34%, crude fibre by 0.97% and nitrogen-free extractives by 0.96%. The data show the promise of using non-traditional feed additives from local raw materials in feeding sheep in Yakutia.