vector identification and prevalence of bovine trypanosomosis in etang special district, gambela region, ethiopia

Author Name: negesa tola, kumisa mideksa, mohammed kedir

Abstract: bovine trypanosomosis causes serious economic losses from anemia, loss of body condition and emaciation. a cross sectional study was conducted in etang special district four selected peasant association (pas) from november 2016 to april 2017 to determine prevalence of bovine trypanosomosis and apparent density of its vectors. from 457 cattle blood sample collected by simple random sampling and examined 16 (3.5%) were positive. the trypanosome species identified were t. vivax 13(81.25%) and t. congolense 3 (18.75 %). the prevalence in age category of young 4(2.58%) and adult 12 (3.39%) with no statistical significant (p=0.443). the prevalence recorded between body condition score in poor 12(6.12%), in medium 4(1.66%) and in good 0(0%) with statically significant (p=0.028). the mean pcv value recorded between parasitaemic (20.1) and aparasitemic (28.58) has statistically significant (p=0.002). the entomological survey was conducted by trap deployed for collection of vectors used 44 different traps in four pas (basil, achewa, ebago and eliya). glossina fly were not found but numerous biting fly collected were 1756 tabanus and 52 stomoxy. the overall apparent density of glossina flies zero (0) and biting fly (20.54) fly/trap/day recorded. this study confirmed trypanosomosome and abundant mechanical vectors are still challenge and loss of cattle production in study area. therefore, strategic control and prevention mechanism of trypanosomosis and its vectors should be emphasized.

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