PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS

Infectious bronchitis (IB) is one of the most common viral diseases of poultry. The objective of this study was to estimate the distribution of avian infectious bronchitis virus isolate in experimentally infected chicken. Twenty-one-day-old commercial broilers were divided randomly into two groups (...

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Main Author: M.H. Mohammed
Format: Article
Language:English
Published: College of Veterinary Medicine, University of Basrah, Iraq 2012-06-01
Series:Basrah Journal of Veterinary Research
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Online Access:https://bjvr.uobasrah.edu.iq/article_54844_21d01f6d3b2d1dfb0fc3e72a05486a0b.pdf
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author M.H. Mohammed
author_facet M.H. Mohammed
author_sort M.H. Mohammed
collection DOAJ
description Infectious bronchitis (IB) is one of the most common viral diseases of poultry. The objective of this study was to estimate the distribution of avian infectious bronchitis virus isolate in experimentally infected chicken. Twenty-one-day-old commercial broilers were divided randomly into two groups (fifty in the experimental and twenty in the control group). Chicks in the experimental group were inoculated intranasal with 106 ELD50/0.1 mL of the virus. The samples from different tissues were collected at day 0, 3, 5, 7, 10, 15 and 20 postinoculation. Chickens showed mild respiratory signs and depression. Viral RNA was detected in the kidney, lung and tracheas. The most important clinical signs and virus finding appeared on day 1 pi. Data showed that the number of infected chickens and viral RNA detection from tissues was reduced with increasing antibody titer on day 20 pi. The results demonstrated that the IB virus has wide tissue distribution for respiratory, urogenital, and digestive systems.
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spelling doaj-art-40f8a1fe85c5447fb37c3be75c556e882025-08-20T03:09:55ZengCollege of Veterinary Medicine, University of Basrah, IraqBasrah Journal of Veterinary Research1813-84972410-84562012-06-0111118018810.33762/bvetr.2012.5484454844PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENSM.H. MohammedInfectious bronchitis (IB) is one of the most common viral diseases of poultry. The objective of this study was to estimate the distribution of avian infectious bronchitis virus isolate in experimentally infected chicken. Twenty-one-day-old commercial broilers were divided randomly into two groups (fifty in the experimental and twenty in the control group). Chicks in the experimental group were inoculated intranasal with 106 ELD50/0.1 mL of the virus. The samples from different tissues were collected at day 0, 3, 5, 7, 10, 15 and 20 postinoculation. Chickens showed mild respiratory signs and depression. Viral RNA was detected in the kidney, lung and tracheas. The most important clinical signs and virus finding appeared on day 1 pi. Data showed that the number of infected chickens and viral RNA detection from tissues was reduced with increasing antibody titer on day 20 pi. The results demonstrated that the IB virus has wide tissue distribution for respiratory, urogenital, and digestive systems.https://bjvr.uobasrah.edu.iq/article_54844_21d01f6d3b2d1dfb0fc3e72a05486a0b.pdfinfectious bronchitiseldkidney
spellingShingle M.H. Mohammed
PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS
Basrah Journal of Veterinary Research
infectious bronchitis
eld
kidney
title PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS
title_full PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS
title_fullStr PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS
title_full_unstemmed PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS
title_short PATHOGENESIS OF INFECTIOUS BRONCHITIS VIRUS IN INFECTED BROILER CHICKENS
title_sort pathogenesis of infectious bronchitis virus in infected broiler chickens
topic infectious bronchitis
eld
kidney
url https://bjvr.uobasrah.edu.iq/article_54844_21d01f6d3b2d1dfb0fc3e72a05486a0b.pdf
work_keys_str_mv AT mhmohammed pathogenesisofinfectiousbronchitisvirusininfectedbroilerchickens