Prevalence of Bovine Trypanosomosis and its Associated Risk Factors in Bambasi woreda, Western Ethiopia

Abstract

A cross-sectional study was conducted in Bambasi woreda from November 2014 to May 2015 to determine the prevalence rate of trypanosomosis and its associated risks. Blood samples were collected from a total of 400 randomly selected cattle. The samples were examined by using Buffy coat technique and hematological procedures. The overall prevalence rate of trypanosomosis was 21.5% (n=85). The species specific trypanosomosis prevalence rate was; Trypanosome congolense 51.76% (n=44), Trypanosome vivax 28.23% (n=24), Trypanosome brucei 11.76% (n=10) and mixed 8.23% (n=7). There was statistically significant difference between trypanosome species (P <0.05). During the study period the prevalence of bovine trypanosomosis was assessed between sexes and age groups of animals. However, the prevalence of trypanosomosis with regard to study areas and body conditions were significantly different. The Mean packed cell volume (PCV) value of infected animals was lower (21.6% ± 3.20) than uninfected animals (24.32% +2.22). The only tsetse fly which was caught during the study period was Glossina morsitans sub morsitans and its mean apparent density was 4.95fly/trap/day. But mechanical vectors of trypanosomosis such as tabanus (1.83f/t/d), stomoxys (1.29 f/t/d) and haematopota (0.41f/t/d) were also found. The overall result of this research shows that the disease is severely affecting the agricultural productivity of the area so attention should be given to control trypanosomosis and its vectors.

Untitled

“…This may be due to both sexes and age groups are equally susceptible to the disease. This finding agreed with Adale & Yasine 18 in Wolaita Zone Kindo Koish District of Ethiopia and Bedada et al 26 in Addisamba and Amarit District of West Gojjam Zone.…”