Bedaso Kebede Kassaye
A cross-sectional study was carried out from January up to March 2013 to determine the prevalence of bovine Trypanosomosis and apparent density of the tsetse flies and other biting flies in Sayonole district. The methods employed during the study were deploying trap for the collection of tsetse flies and buffy coat technique for parasitological study. About 43 traps were deployed for 48 hr for collection of tsetse fly. Among five species of tsetse flies commonly found in Ethiopia four of them G.m.submorsitans, G.pallidepes, G.f.fuscipes and G.tachinoides were captured in the study area. The overall apparent density of tsetse flies trapped was 13.01 flies/trap/day and female tsetse flies were foremost in number. Other biting flies caught were Stomoxys and Tabanus. Blood samples collected randomly from 599 cattles were assessed for trypanosoma species by buffy coat techniques. Trypanosoma species faced in the study area were Trypanosoma congolense 80(79.2%), Trypanosoma vivax 11(10.9%), mixed infection (Trypanosoma congolense and Trypanosoma vivax) 10(9.9%) with the overall Trypanosomosis prevalence of 16.9%. Aneamic cattles whichPacked Cell Volume less than 25% were mainly endangered of Trypanosomosis and significantly different P<0.05. Poor body condition, 4-5 years of cattle age, Male cattle were the most susceptible for Trypanosomosis and insignificantly associated P>0.05. Mean of Overall, Aparasitic and Parasitic Packed Cell Volume were 22.38 ± 5.022, 22.68 ± 4.966 and 20.86 ± 5.044 respectively and significantly different P<0.05.Generally, the study concludes that tsetse flies were an important vector for the epidemiology of bovine Trypanosomosis in sayonole district. Therefore, Vector and disease control and prevention methods and further studies should be undertaken to improve livestock production and productivity in the study area.
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