Showing 2 of 2 results for "IBV"
All 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.
This 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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