Baker J R
Department of Veterinary Pathology, University of Liverpool.
Vet Rec. 1996 Dec 14;139(24):590-4.
Breeders of exhibition budgerigars have commented for some years on an increasing prevalence of feather diseases in their birds. A survey of these diseases identified 37 different conditions, but three-quarters of the cases were due to only four conditions: psittacine beak and feather disease, pulpitis, feather mites and feather cysts.
多年来，虎皮鹦鹉展览饲养者一直在评论其鸟类中羽毛疾病的患病率不断上升。一项针对这些疾病的调查确定了37种不同病症，但四分之三的病例仅由四种病症引起：鹦鹉喙羽病、牙髓炎、羽螨和羽毛囊肿。
