title: Nephritis and uric acid diathesis in captive willow ptarmigan (Lagopus l. lagopus). Effect of feed protein concentration and grass meal admixture.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000378:metabolism / Q000401:mortality*; D001717:Birds; D004032:Diet; D004044:Dietary Proteins / Q000008:administration & dosage*; D004198:Disease Susceptibility; D005260:Female; D008297:Male; D009393:Nephritis / Q000378:metabolism / Q000401:mortality / Q000662:veterinary*; D006109:Poaceae; D012621:Seasons; D014527:Uric Acid / Q000378:metabolism*
chemical_list: D004044:Dietary Proteins; D014527:Uric Acid