鹦鹉喙羽症

鹦鹉喙羽症（英語：Psittacine beak and Feather Disease，簡稱PBFD），是一种由DNA病毒引起的鹦鹉传染疾病。病毒藉由病鸟的排泄物和羽屑进行传染，患病的鹦鹉会出现脱羽、羽毛变形及鸟喙变形等症状，并可能因沒有羽毛保溫以致鸚鵡失溫而死。

延伸閱讀

• Pass, D. A. and R. A. Perry. (1984). The pathology of psittacine beak and feather disease.（页面存档备份，存于互联网档案馆） Aust Vet J 61, 69–74.
• Pass, D. A. and R. A. Perry. (1985). Psittacine beak and feather disease: An update. Aust Vet Practit 15, 55–60.
• Raidal, S. R., et al. (2005). Development of Recombinant Proteins as a Candidate Vaccine for Psittacine Beak and Feather Disease.（页面存档备份，存于互联网档案馆） Final Report for the Australian Government Department of the Environment and Heritage. Murdoch University, Perth, Western Australia.