Some problems concerning errors in the nitrogen and lysine balance studies on animals.
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D005243:Feces / Q000032:analysis; D008239:Lysine / Q000378:metabolism* / Q000652:urine; D009584:Nitrogen / Q000378:metabolism* / Q000652:urine; D013552:Swine
D008239:Lysine; D009584:Nitrogen