Effects of age and feeding regimen on protein and carbohydrate self-selection.
D000375:Aging; D000818:Animals; D001835:Body Weight; D004040:Dietary Carbohydrates / Q000008:administration & dosage*; D004044:Dietary Proteins / Q000008:administration & dosage*; D005508:Food Deprivation; D005518:Food Preferences; D008297:Male; D051381:Rats
D004040:Dietary Carbohydrates; D004044:Dietary Proteins