NON-SPECIFIC RESISTАNCE AND ADAPTIVE CAPABILITIES OF NEW-BORN CALVES, BORN BY COWS BREED AT DIFFERENT TECHNOLOGICAL REGIMES

The dynamics of ACTH, cortisol, protein fractions and lysozyme activity of blood were studied from calves during the first 30 days of their postnatal life, their adaptability and natural resistance are determined by the functional state of the mother's organism during pregnancy and lactation in connection with the technologies of management. It was found, that the hormonal status, natural resistance and adaptability of the new-born calves is different related to the technological regime with the cows during pregnancy period.