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Acta tropica v.167, 2017년, pp.79 - 85   SCI SCIE
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Bovine trypanosomosis and vector density in Omo-Ghibe tsetse belt, South Ethiopia

Abebe, Rahmeto (Corresponding author. ); Gute, Solomon ( ); Simon, Ijigu ( );
  • 초록  

    Abstract African animal trypanosomosis (AAT) is a parasitic disease that causes serious economic losses in livestock from anemia, loss of condition, emaciation and death in untreated cases. It is one of the major constraints to improved livestock production and productivity in Ethiopia. Entomological and parasitological surveys were conducted in the Omo-Ghibe tsetse belt of south Ethiopia to estimate the prevalence of bovine trypanosomosis and the apparent tsetse density (AD), and identify the potential risk factors. For the parasitological study, blood samples were collected from 1508 cattle sampled from 11 districts and assayed using the buffy coat technique and Giemsa-stained thin smears. For the entomological survey, a total of 216 biconical and NGU traps were deployed in all districts. The overall animal-level prevalence of trypanosomosis was 7.8% (95% CI: 6.5, 9.3). The trypanosome species identified were Trypanosoma congolense (75.4%), T. vivax (20.3%), T. brucei brucei (1.7%) and mixed T. congolense/T. vivax (2.6%). Regarding the entomological survey result, a total of 2243 tsetse flies were captured which identified to be Glossina pallidipes (85.1%) and G. f. fuscipes (14.9%). Besides, other biting flies of the genus Stomoxys (n=146) and Tabanus (n=17) were also trapped. The AD noted in the present study was 3.5 flies/trap/day. Both the prevalence of trypanosomosis and AD of tsetse flies were significantly ( p p T. congolense and transmission is predominantly by tsetse flies, particularly G. pallidipes . The study warrants the need for strengthening the vector and parasite control interventions in the area. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Bovine .   Omo-Ghibe .   Prevalence .   Risk factors .   Trypanosomosis .   Vector density.  

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