Ornithobacterium rhinotracheale infection in commercial laying-type chickens

Stephanie J. Sprenger, David A. Halvorson, K. V. Nagaraja, Radivoje Spasojevic, Richard S. Dutton, Daniel P. Shaw

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Ornithobacterium rhinotracheale is a gram-negative, rod-shaped, pleomorphic bacterium that has been isolated from flocks of turkeys and broilers from around the world. Infections cause respiratory disease, mortality, and growth suppression, or clinical signs of infection may be absent. In layers, there have been few reports of disease caused by O. rhinotracheale. This is the first report of O. rhinotracheale infection in United States layer flocks.

Original languageEnglish (US)
Pages (from-to)725-729
Number of pages5
JournalAvian diseases
Issue number3
StatePublished - 2000


  • Chickens
  • Ornithobacterium rhinotracheale


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