RECURRENT OUTBREAK OF GUMBORO DISEASE

Three decades after the outbreak of infectious bursal disease (IBD) in vaccinated chicken was firstreported in Nigeria incidence of the disease has been encountered in vaccinated chicken in commercialpoultry farms at Ekpoma. The chickens purchased from a reputable hatchery, were vaccinated withimported IBD vaccines at 14 and 28 days respectively. Exhibition of clinical signs of IBD were manifested5 days after the last vaccination. These included weakness and anorexia, watery whitish diarrhea, ruffledfeathers, trembling, prostration and...
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