Levels of vitamin A supplementation of a steer fattening ration with high and low levels of roughage

Lebdosoekojo, R. Soekanto.2015-12-312015-12-311966http://hdl.handle.net/2097/26094Call number: LD2668 .T4 1966 L442Beef cattle--Feeding and feeds.Vitamin A in animal nutrition.Levels of vitamin A supplementation of a steer fattening ration with high and low levels of roughageTextMasters theses