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The Role of Avian Influenza, Newcastle Disease and Infectious Bronchitis Viruses During the Respiratory Disease Outbreak in Commercial Broiler Farms of Iran

並列摘要


Avian influenza, newcastle disease and infectious bronchitis viruses are pathogens with economical importance in poultry industry. To determine the role of three mentioned viruses in respiratory diseases outbreak in Iranian broiler farms, 160 serum samples from 8 broiler flocks with respiratory disease symptoms were examined by Hemagglutination Inhibition (HI) and ELISA tests. None of these flocks received any of influenza A, newcastle disease and infectious bronchitis viruses vaccines. The overall antibody titres and seroprevalence of AIV H9 subtype, newcastle disease and infectious bronchitis viruses in this study were 7.6, 5.34 log_2, 1123.12 log_10 and 31.2, 18.47, 82.43%, respectively. The results revealed the important role of infectious bronchitis virus in respiratory disease outbreak in commercial broiler farms of Iran. Therefore, for preventing the IBV infection in the broiler farms, serotype of the new IBV isolates must regularly be determined.

並列關鍵字

Broilers Iran respiratory disease seroprevalence

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