Prevalence of bovine dermatophilosis in a tropical highland region of Ethiopia.

A study was made of bovine dermatophilosis on 540 animals at a high altitude (2400-2500 m above sea level) in Ethiopia. Eighty-two (15.4%) of the animals were affected by the disease which was more prevalent in local animals than was previously assumed. There was a significant (p < 0.05) difference in the prevalence among different age groups. However, the difference in the prevalence of the disease between males and females was not significant (p > 0.05). Associated risk factors included the relatively high average annual rainfall and humidity, tick infestation (76%) and management, related to the mixed crop-livestock production system. The possible impact of the disease on Ethiopian agriculture is indicated.