Abstract
Objective: To assess Equine Sarcoid: Epidemiology and its clinical impact in working donkeys in selected districts of central Ethiopia. Methods: A Cross sectional study was conducted between November, 2009 to April 2010 to assess the epidemiology and clinical impact of equine sarcoids in working donkeys. A structured questionnaire survey was also designed to collect data on current status of sarcoid on donkeys. A random sampling technique was used to select a total of 394 working donkeys in this study. Selected donkeys were clinically examined properly for visible skin lesion. Results: Among a total of donkeys observed during study period, 31 (7.9%) were diagnosed sarcoid positive. A Chi square analysis was used to determine degree of association between risk factors and prevalence of sarcoid infection. The analysis revealed that sarcoid in working donkeys were significantly higher (P<0.05) than that of nonworking donkeys. About 83.9% of sarcoid were increasing in size, while 16.1% sarcoid were static in nature. The invasive nature of sarcoid and its complication resulted in apparent blindness, difficulties in locomotion, urination, grazing, mastication and deification. Conclusion: The result of present work suggest that the prevalence impact of equine sarcoid on health and welfare of working donkeys was considerable and deserves attention.
Highlights
Sarcoid is one of dermatological problems, most commonly detected skin tumor in donkeys
The economic repercussion can be great: besides the cosmetic aspect, the normal use of donkeys can be hindered, especially when tumor is located at the level of girth and bridle, distal limbs, corner of the mouth, eyelids [3]
Study area The study was conducted in two different Districts, namely Ada’a and Akaki of central Ethiopia
Summary
Sarcoid is one of dermatological problems, most commonly detected skin tumor in donkeys It can be defined as a unique local invasive, benign neoplastic like tumor of the skin with available epidermal component which has a high propensity for recurrence [1,2] and can occur as single or multiple lesions in difference forms ranging from small wart-like lesions to large ulcerated fibers growths. The economic repercussion can be great: besides the cosmetic aspect, the normal use of donkeys can be hindered, especially when tumor is located at the level of girth and bridle, distal limbs, corner of the mouth, eyelids [3]. It is recognized as having six different clinical forms which are occult, veracious, nodular, fibroblastic, mixed and malevolent sarcoid [4]. In spite of their aggressive appearance they do not metastasized but can spread locally in the dermis by local invasion or extension [5]
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