Haskins, B R Effects of adding low levels of roughages or roughage substitutes to high energy rations for fattening steers. [electronic resource] - Journal of animal science Aug 1969 - 345-53 p. digital Publication Type: Journal Article ISSN: 0021-8812 Standard No.: 10.2527/jas1969.292345x doi Subjects--Topical Terms: Animal FeedAnimalsCattleCattle Diseases--etiologyFatty Acids--analysisHydrogen-Ion ConcentrationKeratosis--etiologyLactates--analysisRumen--analysis