Abstract: A crossectional study was conducted in backyard local chickens in three woredas of south west and west shoa from November 2009 to March 2010. The objective of the study was to determine sero-prevalence of Infectious Bursal Disease by using I-ELISA. A total of 351 serum samples were collected randomly from Waliso (186), Ambo (116) and Welemera (49) weredas. The overall seroprevalence of IBD was 76.64% (269/351). The study revealed prevalence of 89.78% in Waliso that had significant difference with seroprevalence in Ambo (70.69%) and Welemera (40.81%) (p<0.05). The seroprevalence based on different age groups were: 87.26% in 3-12 weeks, 74.4% in 13-24 weeks and 55.38% in 25-36 weeks old (p<0.05). The seroposetivity of birds kept in poor hygienic (83.33%) condition was very high as compared to those kept in good hygienic condition (p<0.05). A significantly higher seroprevalence was also found in chickens sharing the same house with the owners than those kept in separate shed. The result of this study indicates that IBD is widespread in backyard local chickens of the study areas that call for detail epidemiological investigation of the disease.
Hailu Degefu, Melese Balcha, Moti Yohannes and Mekedes Getachew, 2010. Seroprevalence of Infectious Bursal Disease in Backyard Chickens of Oromia Regional State, Ethiopia. Veterinary Research, 3: 89-93.