Prevalence of Bovine Trypanosomosis and Its Associated Risk Factors in Nano and Gudeya Bila Districts of Oromia Regional State, Ethiopia

Abstract

The prevalence of bovine trypanosomosis, the influence of associated risk factors and relative abundance of tsetse fly was investigated using 891 randomly selected cattle in Nano and Gudeya Bila districts of Oromia regional state, Ethiopia. Blood samples were collected from ear vein and examined by using Buffy coat technique and hematological procedures. The overall prevalence of trypanosomosis was found to be 2.69%, 95%CI. The relative prevalence based on Trypanosome species was 1.79% and 0.90% for T. congolense and T. vivax, respectively. The analysis for the associated risk factors revealed significant difference (P<0.05) in the occurrence of trypanosomosis among different districts, anemic status and body condition of examined animals. However, no significant difference was observed in trypanosomosis prevalence between age and sex groups (P>0.05).The mean PCV values of trypanosomosis positive (21.92%) were significantly lower to that of negative animals (27.44%).The apparent density of tsetse fly was 1.08 fly/trap/day. Three species of Glossina including G. Fuscipes (70.0%), G. Palidipes (19.23%) and G. morsistans (10.77%) were captured from the 120 odor baited traps. Therefore, more attention should be given to lessen the pervasiveness of this vector and impact of the disease in the study districts.

Keywords: Glossina, PCV, Risk Factors, T. Congolense, Trypanosomosis, Tsetse Fly

DOI: 10.7176/JBAH/10-15-05

Publication date:August 31^st 2020