コバタンにみられた「オウム類嘴-羽毛病」 [in Japanese] Outbreak of Psittacine Beak and Feather Disease in Cockatoos [in Japanese]
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全身性の羽毛異常を主訴として来院した3羽のコバタンについて, 臨床観察を行い, 異常羽毛を組織学的に検査した.羽毛の広範囲な形成不全, 変色, 黒色色素沈着, 脱落がみられ, ときに粉羽微粉末の減少, および嘴と爪の過長が認められた.組織学的には羽上皮の変性・壊死, 滲出性, 時に肉芽腫性の羽髄炎がみられた.羽上皮細胞には核内封入体, 羽上皮および羽髄内マクロファージには細胞質内封入体が認められ, 臨床症状とあわせて「オウム類嘴-羽毛病」と診断した.プロパゲルマニウム剤の経口投与により, 一時的に症状は緩和した.
Three lesser sulphur-crested cockatoos (<I>Cacatua sulphurea</I>) with systemic feather abnormality were examined for clinical signs and histopathology. The feathers were widely lost, discolored and dystrophied with deposition of black pigment. There were some decrease in quantity of fine feather powders as well as overgrowth of the beak and nails. Histopathologically, necrobiosis of the feather epithelium and exudative or occasionally granulomatous folliculitis were noticed. Intranuclear inclusions were formed within feather epithelial cells, and intracytoplasmic inclusions were within macrophages in the feather epithelium and the feather pulp. The cases were diagnosed as psittacine beak and feather disease. Oral administration of propagermanium was temporarily effective.
- Journal of the Japan Veterinary Medical Association
Journal of the Japan Veterinary Medical Association 49(8), 551-555, 1996-08-20
Japan Veterinary Medical Association