Stielau, Werner Johannes.Van Ryssen, Jannes Bernardus Jansen.2015-04-102015-04-1019791979http://hdl.handle.net/10413/11982Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1979.No abstract available.en-ZASheep--Feeding and feeds.Sheep--Physiology.Feeds--Composition.Minerals in animal nutrition.Waste products as feed.Copper--Toxicology.Theses--Animal and poultry science.Aspects of the copper-molybdenum-sulphur interactions in sheep.Thesis