Excerpts from the report Preface: This report presents an economic analysis of the use of urea as a source of nitrogen for conversion to protein in feeds for ruminants, and the potential effect of its use on markets for farm-produced proteins. The report neither states nor implies, directly or indirectly, that urea use in ruminant feeds is recommended or should be recommended by the United States Department of Agriculture. This is an economic analysis of a very complex subject. Information to show how the future market for agricultural products may evolve is vital to current marketing and production decisions. Knowledge about competition between agricultural and nonagricultural products fills an essential need. This report is designed to fill a part of that need.