Major ectoparasites of cattle in and around Mekelle, northern Ethiopia

Studies on the identification of major ectoparasites of cattle in and around Mekelle in northern Ethiopia were carried out from November 2006 to June 2007. Ectoparasite prevalence, infestation, and the possible risks associated with ectoparasites were investigated. Data collected were analyzed using the χ²-test. A total of 849 cattle were examined: 40.2% (341), 53.2% (452) and 5.9% (50) were infested with ticks, lice and Demodex, respectively. A positive correlation was observed between prevalence and production system and breed of cattle. The results also revealed widespread occurrence of ectoparasites that have affected the general health and productivity of cattle in the study area. Seven different species of ticks were found on the cattle, with some capable of transmitting pathogens harmful to both cattle and humans.