title: In vivo measurement of nitrogen for small animals using nuclear techniques.
mesh_terms: D000818:Animals; D002417:Cattle; D002645:Chickens; D005260:Female; D008460:Meat / Q000032:analysis; D009584:Nitrogen / Q000032:analysis*; D009587:Nitrogen Isotopes; D011817:Rabbits; D014508:Urea / Q000032:analysis
chemical_list: D009587:Nitrogen Isotopes; D014508:Urea; D009584:Nitrogen