title: Urea recycling and metabolism of ponies.
mesh_terms: D000818:Animals; D002250:Carbon Radioisotopes; D004032:Diet; D005243:Feces / Q000032:analysis; D005260:Female; D006736:Horses / Q000378:metabolism*; D014508:Urea / Q000097:blood / Q000378:metabolism* / Q000652:urine
chemical_list: D002250:Carbon Radioisotopes; D014508:Urea