INCREASE OF DISTILLER’S GRAINS EFFICIENCY FOR INTENSIVE BEEF PRODUCTION

Abstract

The paper in question presents the recipe of a mineral and vitamin additive taking into account the deficit of macro and micro elements and vitamins in the diets with distiller’s grains and their content in rock salt, dolomite powder, sapropel, phosphogypsum. Studied is the efficiency of using feed energy when the additive is included in the diets of calves. It is determined that feeding young cattle on the mineral and vitamin additive promotes a better supply of animals with minerals that brings about the increase of enzymatic process activity in the rumen. As a result the concentration of volatile fatty acids rises by 5.3 %, absorption of ammonia improves, and the content of total and protein nitrogen increases by 4.2–7.2 %. The degree of conversion of nutrients and feed energy into meat increases by 9.6 %, the average daily weight gain increases from 850 to 927 g, and feed costs are reduced by 8 %, including concentrates – by 12.