Нoncharuk V. The usage of the biologically active supplement Probio-active in the ration of young bulls

In the thesis the materials of investigation on studying the influence of the new biologically active supplement Probio-active on productivity, digestion of forage nutrients, beef quality, haematological indicators, the state of digesting and endocrine systems of young bulls in case of their breeding and fattening up for meat are presented. It is determined that feeding young bulls with Probio-active in the dose of 0,3 g/kg of concentrated fodder promotes the average daily weight increase of young bulls by 139gr. (18,7%) at the age of 1-6 months, by 122gr. (16%) at the age of 7-10 months, and by 133 gr. (13,81%) at the age of 11-17 months under the reduce in the forage expenses for each kg. of weight increase by 15.17, 17.76 and 12,7% accordingly. It also stimulates the increase in the digestion coefficient of most nutrients in the ration. Probio-active has no negative affect on the meat quality, haematological indicators, and the structure of different stomach chambers; stimulates the development of some structures of pancreatic islets, thyroid glands, bunch, reticulate zones of cerebral cortex, as well as adrenal cerebral matter. It is proved to have great efficiency - 4,03 hr. of profit for 1 hr. put into it.