Effectiveness of the Combined Use of Microelements and Tetravit in Calves of the Dairy Period

Use of biologically active additives in feeding young animals is the most important element resource-saving technologies. The aim study was to effectiveness use vitamin and mineral nutrition on growth development animals. 3 groups calves were formed at age 10 days. Animals control group received basic diet (OR), II-experimental OR + salts microelements III-experimental tetratwit doses from 1 months – 1.5 mg, 5 2.0 mg 6 3.0 mg. Tetravit injected once every 2 weeks throughout study. It found that (copper, zinc, cobalt, manganese, iodine) during dairy period contributes their more intensive meat productivity, both combination with tetravite without it. separately, a multivitamin preparation (tetravit) significant increase studied hematological parameters animals, relative analogues.