title: Significance of the endogenous nitrogen excretion in protein evaluation studies with rats.
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001835:Body Weight; D004044:Dietary Proteins / Q000378:metabolism*; D005243:Feces / Q000032:analysis; D008297:Male; D008715:Methionine / Q000494:pharmacology; D009584:Nitrogen / Q000652:urine*; D051381:Rats; D014508:Urea / Q000652:urine
chemical_list: D004044:Dietary Proteins; D014508:Urea; D008715:Methionine; D009584:Nitrogen