Nitrogen metabolism in nonruminant herbivores. I. The influence of nonprotein nitrogen and protein quality on the nitrogen retention of adult mares.
D000821:Animal Feed / Q000032:analysis; D000818:Animals; D004044:Dietary Proteins / Q000032:analysis / Q000378:metabolism*; D004063:Digestion; D005260:Female; D006736:Horses / Q000378:metabolism*; D008962:Models, Theoretical; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism*; D009751:Nutritional Requirements; D014508:Urea / Q000097:blood / Q000378:metabolism*
D004044:Dietary Proteins; D014508:Urea; D009584:Nitrogen