Selemag effects on some indicators of carbohydrate metabolism in cows in the climate of the Southern Urals
The stress state of animals causes changes in metabolic processes, the indicators of carbohydrate metabolism being prior. Calving is very stressful, especially for first-calf cows. Thus, we studied experimentally the changes in the level of glucose and pyruvic acid in the blood of cows at different periods of drug administration relative to calving. The introduction of a drug containing selenium which has an anti-stress effect twice with food at the dose of 25 ml per head a month before calving and a month after it, or 2 months before calving and a month after it is proved to be the most reasonable