Abstract
A cross-sectional study was conducted in selected sites of Southern Nation, Nationalities and People Regional State (SNNPRS) of Konta, Ethiopia. The purposes of study were to determine the apparent density of tsetse flies and prevalence of bovine trypanosomosis. Ngu traps for entomological survey were deployed at grazing and watering points of animals in the village of Dolba (Kerara Peasants Association, PAS) and near Gojeb River. Assessment of tsetse indicated the presence of Glossina pallidipes with the apparent density 8.45% flies/trap/day. Other biting flies (tabanids) were also caught along with tsetse that transmits trypanosomes mechanically. For parasitological study, a total of 400 blood samples were collected from randomly selected animals and examined for the presence of trypanosomes and indicate overall prevalence of trypanosomosis in study cattle as 12%. The dominant trypanosome species were found Trypanosoma conglonse 29 (60.4%) followed by Trypanosoma vivax 14 (29.2%), Trypanosoma bruci 3 (6.25%) and mixed infection (T. congolonse and T. vivax) of 2 (4.2%). Based on these results it is concluded that trypanosomosis is a major constraint of livestock production in the study area. Key words: Konta, Southern Nation, Nationalities and People Regional State (SNNPRS), Tsetse, Trypanosomosis, trypanosome, prevalence.
Highlights
Trypanosomosis is serious constraints to livestock production and agricultural development in Ethiopia
Tsetse flies found during the survey were only G. pallidipes
G. pallidipes were abundant at high gallery forest and valley flanks along the drainage lines of the river which is 59.3% whereas 43.7% flies were caught at Kerara peasant association (PAs) which tsetse are more suspected habitat were the vegetation dominated by thorny bush, short grass and dispersed acacia species (Table 1)
Summary
Trypanosomosis is serious constraints to livestock production and agricultural development in Ethiopia. Trypanosomosis is a wide spread and economically important disease in human and animals (Sumbria and Singla, 2016). It is caused by protozoan parasites belonging to the family trypanosomatidae genus Trypanosoma, which inhibits the blood plasma, various bodies’ fluids and tissue of the host (Singh and Singla, 2012). The species of Trypanosoma known to exist in Ethiopia, which are pathogenic to cattle and small ruminants, are: Trypanosoma vivax, Trypanosoma congolense and Trypanosoma bruci. They are distributed mainly in tsetse belt of the country (south west and southern parts) between 33 ̊and 38 ̊E and 5 ̊ to 12 ̊N. T. vivax, found in area outside of the belt, where it can possibly
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