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|Title:||Comparative histopathology of two serotypes of infectious bronchitis virus (T and N1/88) in laying hens and cockerels|
|Citation:||Poultry Science, 2007; 86(1):50-58|
|Publisher:||Poultry Science Assoc Inc|
|K. K. Chousalkar, J. R. Roberts and R. Reece|
|Abstract:||The comparative and sequential histopathology of different tissues of unvaccinated laying hens and cockerels were studied in chickens exposed to T and N1/88 strain of infectious bronchitis virus (IBV). The Harderian gland and trachea of hens and cockerels in both T- and N1/88-infected groups were damaged to a similar extent. The cecum was unaffected for both strains of IBV in both hens and cockerels. The sequential histopathological changes in hens revealed that IBV multiplies initially in the Harderian gland, then in the tracheal mucosa and simultaneously in the kidney and regions of the oviduct such as the magnum, tubular shell gland, and shell gland pouch. In cockerels, IBV multiplies first in the Harderian gland, then simultaneously in the trachea and kidney. Overall, the severity and persistence of lesions were greater in the kidneys of T-infected hens as compared with N1/88-infected hens. However, pathological changes in the kidney were mild in T- and N1/88-infected cockerels.|
|Keywords:||histopathology; infectious bronchitis virus; laying hen; cockerel|
|Rights:||© 2007 Poultry Science Association Inc.|
|Appears in Collections:||Animal and Veterinary Sciences publications|
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