title: A 15N study on dietary urea utility in young pigs fed with a low protein diet.
mesh_terms: D000818:Animals; D004032:Diet; D004044:Dietary Proteins / Q000008:administration & dosage*; D008297:Male; D009584:Nitrogen / Q000378:metabolism*; D013552:Swine / Q000378:metabolism*; D014508:Urea / Q000378:metabolism*
chemical_list: D004044:Dietary Proteins; D014508:Urea; D009584:Nitrogen