Digestability and use of nutrients by fattern cares with the inclusion of the feed additive “Korrum” into the diet

On the basis of production tests, when studying the optimal rate of feeding the carbohydratemineral- protein concentrate “Korrum” on fattening bulls at the Agricultural Production Complex Breeding Plant named after Lenin, Atninsky District of the Republic of Tatarstan, a physiological experiment was carried out to study the digestibility and use of dietary nutrients. Animals of the experimental groups received a feed additive at the rate of first - 60 g, second - 90 and third - 120 g of the drug per 100 kg of live weight. The studied drug had a positive effect on the digestibility and utilization of dietary nutrients. The best results were obtained in the second experimental group. Daily feeding of the supplement to fattening bulls of this group contributed to an increase in the digestibility coefficient of nutrients: dry matter - by 5.47 %, organic matter - by 6.19 %, crude protein - by 6.47 %, crude fat - by 8.32 % , crude fiber - by 7.17% and nitrogen-free extractive substances - by 5.88 % and enhanced metabolic processes in the body of animals, increasing the absorption of nitrogen - by 16.2 % (Р ≤ 0.001), the use of calcium - by 10.6 % (Р ≤ 0.05) and phosphorus - by 6.4 % compared to animals in the control group.