title: Standardization of nitrogen-balance experiments with rats. 3. Evaluation of casein + 5 percent methionine as a standard reference protein in nitrogen-balance experiments with rats.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D000821:Animal Feed; D000818:Animals; D002364:Caseins / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism*; D008297:Male; D008715:Methionine / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000596:Amino Acids; D002364:Caseins; D004044:Dietary Proteins; D008715:Methionine; D009584:Nitrogen