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The productivity and physiological state of young cattle in the post-dairy period were studied. The use of whole milk substitute in feeding calves contributed to the strengthening of metabolic processes in the animal body in the post-dairy period, as evidenced by an increase in the amount of volatile fatty acids in the scar fluid by 6.8%, total nitrogen - by 6.9% with a decrease in ammonia, as well as an increase in the number of red blood cells in the blood by 3.9%, hemoglobin - by 5.4%, glucose - by 5.1%, with an increase in the activity of ALT and AST enzymes by 5.6 and 6.2%. Feeding whole milk substitute and feed to young animals with a duration of the dairy period of 90 days contributes to an increase in average daily gains in the post-dairy period by 5.4%, while reducing the cost of growth by 4.4%, which allowed for an additional profit of 6.64 rubles (2.6 US dollars) per head during the research period.

Producing of ecologically safe food raw materials based on new system of calf rearing