Histomoniasis in the bursa of Fabricius of chickens

Portia L. Cortes, Richard P Chin, Mark C. Bland, Rocio Crespo, H L Shivaprasad

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Histomoniasis was diagnosed in a flock of 6-wk-old commercial chickens. Clinical signs included depression, stilted gait, inappetence, and a slight increase in mortality. At necropsy, there were pale-yellow to dark-gray circular and depressed necrotic lesions in the liver. The ceca were enlarged and impacted with caseous cores. Cecal worms were not observed either at necropsy or on histopathology. Histomonads were demonstrated microscopically within the bursa of Fabricius in addition to the liver, ceca, and spleen. This is the first report of the presence of histomonads in the bursa of Fabricius in commercial chickens.

Original languageEnglish (US)
Pages (from-to)711-715
Number of pages5
JournalAvian Diseases
Issue number3
StatePublished - Sep 2004


  • Blackhead
  • Bursa of Fabricius
  • Chicken
  • Heterakis
  • Histomoniasis

ASJC Scopus subject areas

  • Immunology
  • Cancer Research
  • veterinary(all)


Dive into the research topics of 'Histomoniasis in the bursa of Fabricius of chickens'. Together they form a unique fingerprint.

Cite this