Deineko R. Digestibility of feed, metabolism and productive qualities of youngster ducks at difference levels zinc and manganese of in mixed fodder.

Object of study - young duck meat productivity directly cross "Star 53 HY". Purpose is to establish optimal levels of zinc and manganese in feed for calves and ducks justification efficient use of different forms of these minerals. Research methods - zootechnical , physiological , biochemical and statistics . Scientific novelty : the first set optimal levels of zinc and manganese in the compound feed for young duck meat productivity directly cross "Star 53 HY". Efficiency of use of different sources of micronutrients in diets of ducklings . New data on the impact of different levels of zinc and manganese in diets of young ducks modern cross on digestibility of nutrients, balance of macro- and micronutrients, their concentration in muscle, liver, tibia, morphological and biochemical composition of the blood. Experimentally proved the best way of balancing the use of trace element nutrition organic sources of zinc and manganese in modern meat feeding ducks cross . Degree of implementation : This study implemented in JV " Poultry-plant Korobivskyi" Zolotoniyskiy in Cherkasy region and uviyshy the " Scientific and practical advice on determining the energy value of feeds for poultry ." Scope: agriculture.