TISSUE PREPARATION USAGE FOR IMPROVED REPRODUCTIVE FUNCTION OF HEIFERS
The research of influence of new tissue drug "bio-tec" on physiological, immunobiochemistric indices, gematological indices, live weight gain and diseases of newborn calves. It was established, that under influence of tissue drug the bactericidal activity of serum (bas) increased up to 11,4%. In the test groups bas was bigger than in the control group by 5,4-12,9%. 21 day after drug injection animals of test groups had lysozyme activity of serum advantage by 8,9- 16,3% and phagocytic activity of neutrophils advantage by 5,6%. subcutaneous injection of tissue drug to calves in 4ml dose on 5-8 day promotes the increasing of phagocytic index up to 11,7% and phagocytic number by 6,4%. The phagocytic capacity of calves in test groups increased by 4,5-12,4% in 21 day period after the drug injection. The correction of natural resistance of calves by using the new tissue drug contributed the decrease of illnesses by 2-3 times and increased the safety and live weight gain.