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Poult Sci 2007. 86:59-62
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IMMUNOLOGY, HEALTH, AND DISEASE: Research Note

Histopathology of Two Serotypes of Infectious Bronchitis Virus in Laying Hens Vaccinated in the Rearing Phase

K. K. Chousalkar*,1, J. R. Roberts* and R. Reece{dagger}

* Animal Science, School of Rural Science and Agriculture, University of New England, Armidale, New South Wales, 2351, Australia; and {dagger} Elizabeth MacArthur Agricultural Institute, Menangle, New South Wales, 2568, Australia

1 Corresponding author: kchousal{at}une.edu.au

The comparative histopathology of 2 different strains of infectious bronchitis virus (T and N1/ 88) in vaccinated hens was studied at 110 wk of age. The Harderian gland showed similar histopathology in T- and N1/88-infected hens. The trachea and kidney of challenged vaccinated hens were protected to a moderate extent, but the oviduct was protected to only a small extent. The severity and persistence of lesions were greater in tubular shell gland, shell gland pouch, and kidney of the T-infected hens, whereas, for the magnum, N1/88 had a greater effect.

Key Words: histopathology • infectious bronchitis virus • vaccinated hen




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K. K. Chousalkar and J. R. Roberts
Ultrastructural Observations on Effects of Infectious Bronchitis Virus in Eggshell-Forming Regions of the Oviduct of the Commercial Laying Hen
Poult. Sci., September 1, 2007; 86(9): 1915 - 1919.
[Abstract] [Full Text] [PDF]


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