Object of study: the physiological state and productivity of young calves of the Ukrainian meat breed at the correction of ration scarce microelements (copper, by cobalt, manganese). Aim of researches: to find out the physiological state of young calves of the Ukrainian meat breed in ontogenesis at plugging in forage of ration of Cu, Co and Mn as inorganic salts in the zone of Steppe of Ukraine. Research Methods: physiological, biochemical, zootechnic, statistical. Scientific novelty: a complex study of the physiological state of young calves of the Ukrainian meat breed on the indexes of albuminous-nitrogen exchange, loud speakers of formation of foods of perexidation oxidization of lipids and activity of antioxidant enzymes in different periods of ontogenesis is First undertaken. It is set on the basis of morphological, physiological and zootechnic researches, that correction of rations of young calves of Ukraine meat breed positive influence on the indexes of blood of animals (the amount of red corpuscles and maintenance of haemoglobin increase), proteometabolism in the organism of animals (maintenance of general albumen, globulins increases) has inorganic salts of microelements (Cu, Co and Mn). It is set that the correction of forage of rations assists the increase of activity of enzymes of the antioxidant system (katalase, peroxidase and superjxidedismutase) the complex of salts of microelements, that in turn, results in lowering of level of primary and secondary foods of perexidation oxidization lipids. Is offered: On the basis of study of the physiological state of organism and increase of productive indexes of young calves of the Ukrainian meat breed it is suggested to correct the rations of feeding of young calves of the different age-related groups in obedience to next doses: in age 1,5 month of copper - 0,57, cobalt - 0,03, manganese are 2,45 mgs; in age 6 months of copper - 0,30, cobalt - 0,048, manganese are 3,22 mgs; in age 12 months of copper - 0,29, cobalt - 0,028, manganese are 1,93 mgs; there are 15 months of copper - 0,34; cobalt - 0,03, manganese are 1,85 mgs and in methodical recommendations "Application of microelements in the rations of fattening young calves of cattle of the Ukrainian meat breed". Introduced: the results of researches are inculcated in an experience enterprise experience economies " Polivanovka" of Institute of rural economies of steppe zone of НААН of Ukraine of Мagdaline of district of the Dnepropetrovsk area. For the improvement of the physiological state and productivity of young calves of the Ukrainian meat breed the use of microelements is recommended as inorganic salts in the offered doses. The got results of researches of can fathers drawn on in an educational process at reading of course of disciplines "Zoophysiology", "Biochemistry of animals" and "Feeding of agricultural animals" for the students of higher educational establishments of Ukraine of ІІІ and ІV level of accreditation.
