Abstract
The article presents the material of scientific and economic experience on dairy cows. The conducted experience has shown that the use of waste from the fat and oil industry in the diet of dairy cows allows to increase their productivity. And also expands the feed base and provides alternative feed for farm animals, which in turn allows you to increase the protein content in animal diets, solves the problem of waste disposal of the fat and oil industry. The inclusion of feed concentrate from vegetable raw materials "Sarepta" in the diets of lactating cows improves the ability to digest and assimilate feed nutrients. The use of the nitrogenous part of diets and mineral elements (calcium, phosphorus, magnesium) increases.
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