DIGESTIBILITY OF THE MAIN NUTRIENTS CONTAINED IN RATIONS SUPPLEMENTED WITH THE BIODARIN PROBITIC AND FED TO BLACK-SPOTTED COWS
The article deals with data obtained as result of assessment the effectiveness of using the optimal dose of the protein-vitamin-mineral probiotic supplement BioDarin and its effect on the digestibility of nutrients by Black-Spotted cows. The scientific-economic experiment was conducted on the basis of the agricultural production co-operative (APC) - collective farm «Geroi» of the Republic of Bashkortostan. In addition to the main diet the animals of the experimental group were fed the basic ration supplemented with the probiotic preparation BioDarin in the doses of 3.5, 7.0 and 10 g per 1 kg of concentrated feed. It is shown that feeding of the complex additive has stimulated the intake of more nutrients by the cows, including dry matter, organic matter, crude protein, raw fat, crude fiber and nitrogen-free extractives. The cows fed diets containing the above feed additive in the dose of 7.0 g per 1 kg of concentrates were in the lead by the consumption and digestibility of nutrients.