Respiratory Diseases: Vaccination and Immune Response
Published: November 18, 2013
Summary
Newcastle Disease Virus, Infectious bronchitis virus (IBV), Avian metapneumovirus and other respiratory agents are, in spite of vaccination(s), major causes of respiratory problems in broilers and of poor egg production in breeders and layers in many parts of the world. Many vaccines that are being used have shown under experimental conditions that they are able to provide a h...
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3 de diciembre de 2013
Can Breeder vaccinate against live Pneumovirus at age 22 wk during field challenge? How to control Pneumovirus in broiler breeder with vaccine?Pneumovirus involvement in peritonitis? Protection by live and killed vaccine in breeder is sufficient, suggest best time to vaccinate,is there any mutation or vaccine failure.
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