title: Nitrogen metabolism and metabolic fecal nitrogen as related to caloric intake and digestibility.
mesh_terms: D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle / Q000378:metabolism*; D004044:Dietary Proteins / Q000378:metabolism; D005243:Feces / Q000032:analysis*; D008297:Male; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism* / Q000652:urine; D011095:Polyethylenes
chemical_list: D004044:Dietary Proteins; D011095:Polyethylenes; D009584:Nitrogen