Selenium-containing drug together with the feed additive Benut in the rations of steers

Abstract

Currently, there is great interest in the use of selenium drugs in animal husbandry. Chickpea is high-containing in selenium and protein. The feed additive Benut, made on the basis of chickpea, has a high content of selenium. At the same time, its active interaction with proteins was revealed. The purpose of the work was to increase the meat productivity and quality of beef of steers when using the selenium-containing drug DAFS-25 in rations together with the feed additive Benut. In order to conduct the experiment, according to the principle of analogues 3 groups of Aberdeen-Angus steers were formed at the age of 9 months for 15 heads in each group. The duration of the experiment was 172 days including the main period 150 days. In the main period, the steers of the 1st control group received the main ration (MR), the 2nd experimental group received MR + DAFS-25 (1,6 mg/kg of concentrates) and the 3rd experimental group received MR + 0,5 kg/head/day of the feed additive Benut (instead of an equivalent amount of concentrates) + DAFS-25 to ensure the content of selenium as in the ration of animals of the 2nd experimental group. The beef productivity of fattened steers of Aberdeen-Angus breed was studied and also indicators of blood composition, digestibility and assimilation of feed nutrients, beef quality and efficiency of its production, when used in rations of the drug DAFS-25 separately and in combination with the feed additive Benut. Profit from the sale of beef in the 2nd experimental group was received by 84,4 rubles more and in the 3rd experimental group by 574,8 rubles more than in the 1st control group. In the 2nd and 3rd experimental groups the profitability level was 1,2 and 13,2 % higher than in the 1st control group (27,3 %).