EN
In three experiments, executed on calfs it was examined the influence of increasing participation of bruised rye grain (from 0 to 30%), antibiotics (zincbacitracine, saltmycine, monesine and avoparcine) and different levels of soya been and rape bruised grain in substantial mixtures on productive and physiological coefficients. Together with increasing level of rye (0, 10, 20, 30%) in the mixture, it decreased the quantity of received fodder about 3.8, 6.8 and 10.9% in comparison to checking group. The best increments of live-stock obtained with monesine addition, whereas the maximum consumption of feeding stuff noted down in saltmycine application. It noticed the substantial influence of antibiotic serving on seeming digestibility and adoption of Ca, P and Mg. The saltmycine and avoparcine accompaniment reduced the level of Ca assimilation, but raised the P. Monesine and avoparcine reduced the seeming digestibility of Mg.