Onchocerciasis - Donkey
Onchocerca cervicalis affects the skin indirectly when either the microfilaria or the larvae are deposited in the skin capillaries. In the latter case the effects are limited and most obvious following administration of an avermectin wormer.
The classical signs include ulcerating skin nodules in the withers region (fistulous withers involving the withers bursa) or the skin overlying tendons of the limbs.
Onchocerca can be difficult to diagnose.
Treatment is limited to the use of avermectins administered orally. Donkeys that receive regular avermectin wormers are usually not affected and so this history is useful to establish.
Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).
Onchocerciasis in donkeys related publications
- Knottenbelt, D. (2008) Skin disorders In Svendsen, E.D., Duncan, J. and Hadrill, D. (2008) The Professional Handbook of the Donkey, 4th edition, Whittet Books, Chapter 8