Mushi, E.Z.Binta, M.G.Chabo, R.G.Ndebele, R.T.Verwoerd, Daniel Wynand2012-10-082012-10-0820121999Mushi, EZ, Binta, MG, Chabo, RG & Ndebele, RT 1999, 'Seroprevalence of infectious bursal disease in non-vaccinated indigenous and exotic chickens on selected farms around Gaborone, Botswana’. Onderstepoort Journal of Veterinary Research, vol. 66, no. 2, pp. 135-137.0330-2465http://hdl.handle.net/2263/20078The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat v.9 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Sera from nine out of 30 (30,0 %) apparently healthy unvaccinated indigenous (Tswana) chickens had precipitating antibodies to infectious bursal disease (IBD) virus using the agar gel precipitation test. Similarly, sera from 11 out of 49 (22,4 %) chickens of exotic breeds with no history of vaccination against IBD were positive for antibodies against the virus.en© ARC-Onderstepoort (original). © University of Pretoria. Dept of Library Services (digital).Veterinary medicineAntibodiesIndigenousInfectious bursal diseaseExotic chickensVeterinary medicine -- South AfricaPoultry -- InfectionsChickens -- DiseasesArticle