The prevalence of infectious bursal disease in chickens in Ethiopia: A systematic review and meta-analysis

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationSekota Dryland Agricultural Research Center, Ethiopia
cg.contributor.affiliationBahir Dar University
cg.contributor.affiliationInternational Livestock Research Institute
cg.contributor.affiliationUniversity of Gondar
cg.coverage.countryEthiopia
cg.coverage.iso3166-alpha2ET
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierAyalew Assefa: 0000-0002-6287-5318
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1016/j.japr.2025.100617
cg.isijournalISI Journal
cg.issn1056-6171
cg.issue4
cg.journalJournal of Applied Poultry Research
cg.number100617
cg.reviewStatusPeer Review
cg.subject.ilriANIMAL DISEASES
cg.subject.ilriCHICKENS
cg.subject.ilriPOULTRY
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hunger
cg.volume34
dc.contributor.authorTibebu, A.
dc.contributor.authorBahiru, A.
dc.contributor.authorYitbarek, T.
dc.contributor.authorTeshome, Y.
dc.contributor.authorTamrat, H.
dc.contributor.authorFerede, Y.
dc.contributor.authorAssefa, Ayalew
dc.contributor.authorMekonnen, S.A.
dc.date.accessioned2025-10-11T16:48:18Z
dc.date.available2025-10-11T16:48:18Z
dc.identifier.urihttps://hdl.handle.net/10568/177017
dc.titleThe prevalence of infectious bursal disease in chickens in Ethiopia: A systematic review and meta-analysisen
dcterms.abstractInfectious bursal disease (IBD) is a contagious viral disease in young chickens that weakens immunity and causes significant economic losses. This review updates IBD prevalence in Ethiopian chickens from 2000 to 2023. The review follows PRISMA and uses a random-effects model with the DerSimonian-Laird estimator. Of 245 retrieved studies, 22 (31 reports) were included in the meta-analysis. The pooled IBD prevalence was 67% (95% CI 56–75%; I² = 98.8%). Prevalence ranged from 85% in Addis Ababa (95% CI 81–89%) to 56% in southern NNP (95% CI 29–80%). Pooled prevalence was higher in serological studies (71%; 95% CI 60–80%) than in molecular (54%; 95% CI 20–85%) or postmortem studies (31%; 95% CI 29–33%). Pooled prevalence was higher in exotic chickens (65%; 95% CI 50–77%) than in indigenous chickens (61%; 95% CI 46–74%) and higher in adults (70%; 95% CI 60–78%) than in younger birds (65%; 95% CI 51–76%). Female chickens had a higher pooled prevalence (68%; 95% CI 55–79%) than males (62%; 95% CI 48–74%). Both classical virulent (cvIBDV) and very virulent (vvIBDV) serotype I genotypes have been identified in Ethiopia. The review underscores the urgent need for ongoing surveillance and national interventions to reduce IBD prevalence, which threatens poultry production and reproductive performance.en
dcterms.accessRightsOpen Access
dcterms.audienceAcademics
dcterms.audienceScientists
dcterms.available2025-10-10
dcterms.bibliographicCitationTibebu, A., Bahiru, A., Yitbarek, T., Teshome, Y., Tamrat, H., Ferede, Y., Assefa, A. and Mekonnen, S.A. 2025. The prevalence of infectious bursal disease in chickens in Ethiopia: A systematic review and meta-analysis. Journal of Applied Poultry Research 34(4): 100617.
dcterms.issued2025-12
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherElsevier
dcterms.subjectanimal diseases
dcterms.subjectchickens
dcterms.subjectgumboro disease
dcterms.subjectpoultry
dcterms.typeJournal Article

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