Nutrition balance techniques and their limitations. Nitrogen balances.
D000368:Aged; D000821:Animal Feed; D000818:Animals; D002417:Cattle; D004044:Dietary Proteins; D006041:Goats; D006801:Humans; D008297:Male; D008892:Milk / Q000032:analysis; D009584:Nitrogen / Q000032:analysis*; D009747:Nutritional Physiological Phenomena
D004044:Dietary Proteins; D009584:Nitrogen