Sero-Prevalence and Risk Factors for Infectious Bursal Disease in Local Chicken on Backyard Production System in Selected Districts of Ilubabor Zone, South Western Ethiopia
DOI:
https://doi.org/10.17140/VMOJ-7-165Keywords:
Cross-sectional; Ethiopia; Backyard chickens; IBDV; Risk factors; SeroprevalenceAbstract
Introduction
Gumboro is an acute, highly contagious, and immunosuppressive viral disease of young chickens less than 17-weeks. However, in
local chicken flocks of Ilubabor, there is no known sero-status of the disease.
Methods
To address this information gap, a cross-sectional study was conducted in local backyard chicken flocks of three districts of
Ilubabor Zone where chick mortality and morbidity were a big problem. The objectives of the study were to estimate the seroprevalence of infectious bursal disease virus (IBDV) and to assess its risk factors.
Result
Out of 418 serum samples tested, 180 were positive and the overall chicken level seroprevalence of the IBDV antibody in the
study area was found to be 43.10% (95% CI: 38.40-47.85) and flock-level seroprevalence was 45.63% (73/160) (95%CI: 37.91-
53.34) with almost all test positive flock chickens were seropositive. Multivariable analysis at chicken level showed that the odds
of IBDV seroprevalence was significantly high in Metu and Bilo Nopa districts, in purchased, in female and adult chickens. Also,
it was high at flock level in chickens mixed with exotic breeds, in flocks having greater than 5 chickens.
Conclusion
This study shows that IBDV is circulating in the chicken population of Ilubabor at a high prevalence level. Therefore, further
studies on serotypes and strains of IBDV identification should be carried out to design suitable control and prevention measures.
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