Showing 2 of 2 results for "IBV"


  • Vaccination and infectious bronchitis virus (IBV) challenge in mature laying hens

    IMG 6984All pullets currently reared in Australia for egg production are vaccinated with live attenuated strains of infectious bronchitis virus (IBV). However, questions have been raised about possible negative effects of attenuated vaccines in adult layer birds. This study was carried to evaluate the effects of both pathogenic wild/field strains and vaccine strains of IBV on the oviduct and also to assess the protectivity of current vaccine strains.

  • Development of real-time PCR test to quantify infections bronchitis virus in tissues of chickens

    UNE85This study was conducted to develop and evaluate the use of reverse transcriptase real time polymerase chain reaction (RT-PCR) to detect and quantify the viral copy number of infectious bronchitis virus (IBV) from infected tissues of vaccinated and unvaccinated laying hens. The real-time PCR test designed during this project is highly sensitive and can detect as low as 10 viral copy numbers. Along with virulent ‘T’ and vaccine strains A3 and Vic S, the test will also be able to detect at least seven other Australian IBV strains.

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