Vet Med - Czech, 2005, 50(10):446-450 | DOI: 10.17221/5648-VETMED

An outbreak of avian tuberculosis in peafowl (Pavo cristatus) and pheasants (Phasianus colchicus) in a zoological aviary inTurkey

O. Kul1, R. Tunca2, R. Haziroglu3, K.S. Diker4, S. Karahan5
1 Department of Pathology, 5Department of Basic Sciences, Faculty of Veterinary Medicine, Kirikkale University, Yahsihan, Kirikkale, Turkey
2 Department of Pathology, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey
3 Department of Pathology,
4 Department of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey

Avian tuberculosis was diagnosed histopathologically and microbiologically in two pheasants (Phasianus colchicus) and two peafowl (Pavo cristatus) kept in the same aviary. The incidence of avian tuberculosis in the aviary was 6%. Non-mineralized caseogranulomas were present in the liver (3 cases), spleen (3 cases), intestine (2 cases), lung (2 cases), and cloaca (1 case). Granulomas in the lung were present only in peafowl. The presence of granulomas in the lung of both infected peafowl suggests that peafowl were exposed to the agent via the respiratory route rather than the alimentary route. Histopathologic findings were typical of avian tuberculosis, including acid fast bacilli and centrally located caseo-necrosis surrounded by epitheloid macrophages, lymphocytes, and multinucleated giant cells. Mycobacterium avium subsp. avium was isolated from tissue samples of all infected birds.

Keywords: avian tuberculosis; pathology; peafowl; pheasant; zoonosis

Published: October 31, 2005  Show citation

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Kul O, Tunca R, Haziroglu R, Diker KS, Karahan S. An outbreak of avian tuberculosis in peafowl (Pavo cristatus) and pheasants (Phasianus colchicus) in a zoological aviary inTurkey. Vet Med - Czech. 2005;50(10):446-450. doi: 10.17221/5648-VETMED.
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