An Outbreak of Avibacterium paragallinarum serovar B in a Thai Layer Farm

Authors

Kridda Chukiatsiri
Suwit Chotinun
Niwat Chansiripornchai

Abstract

Avibacterium paragallinarum serovar B was diagnosed and revealed in a layer farm. The infected chickens showed mucous nasal discharge, facial edema and conjunctivitis. Egg production also decreased dramatically. Necropsy findings showed lesions of conjunctivitis and edematous tissue around the eyes. The infraorbital sinuses were filled with a caseopurulent mass and tracheitis. Bacterial isolation and identification was performed and confirmed by PCR technic. A hemagglutination inhibition test using specific antibodies against serovar B revealed the Avibacterium paragallinarum serovar B infection. A pathogenicity test done in 10 layer chickens, showed clinical signs of nasal discharge, facial edema and conjunctivitis. This is the first report of an outbreak of infectious coryza caused by A. paragallinarum serovars B in Thailand.

DOI

10.56808/2985-1130.2264

First Page

441

Last Page

444

Recommended Citation

Chukiatsiri, Kridda; Chotinun, Suwit; and Chansiripornchai, Niwat (2010) "An Outbreak of Avibacterium paragallinarum serovar B in a Thai Layer Farm," The Thai Journal of Veterinary Medicine: Vol. 40: Iss. 4, Article 13.
DOI: https://doi.org/10.56808/2985-1130.2264
Available at: https://digital.car.chula.ac.th/tjvm/vol40/iss4/13