Palatability and Digestion of Feedlot Waste in Ruminant Rations

Abstract

Animal manures have been used as a source of livestock feed for many years. Hogs have been used in the feedlot to salvage undigested feed that passed through cattle. In fact, growth responses, beyond that to be expected from the grain present, have been noted in both chickens and hogs feeding on cattle manure. One of these previously "unidentified growth factors" has since been identified as Vitamin B-12. This vitamin at one time was commonly referred to as the "cow manure factor."