Smith, K.F.Richardson, D.Loeppke, D.W.Boren, Fred W.2011-04-282011-04-282011-04-28http://hdl.handle.net/2097/8497The trace minerals, cobalt, iodine, copper, and zinc, were added to a prairie hay-limited sorghum grain ration in an effort to improve utilization of prairie hay. Since increased quantities of urea are being successfully used in high-energy rations, its value as a protein extender in a primarily prairie hay ration was tested.BeefPrairie hayUreaTrace mineralsConference paper