In ovo vaccination of broilers against Campylobacter jejuni using a bacterin and subunit vaccine.

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2019
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Abstract
Campylobacter jejuni and Campylobacter coli originating from poultry meat have been the most important causes of foodborne bacterial gastroenteritis in the European Union since 2005. In-feed application of maternal antibodies from vaccinated hens was shown to confer protection of broilers against Campylobacter infection. Here, it was investigated if these vaccines can be used to protect broilers against Campylobacter infection after in ovo vaccination. Embryos were immunized in ovo at day 18 with a bacterin or a subunit vaccine and at 19 D post hatch, these birds were inoculated with C. jejuni according to a seeder model. Quantification of C. jejuni in the broilers cecal content showed that the in ovo vaccinated birds were not protected against C. jejuni infection. Quantification of blood anti-Campylobacter antibody titers did not show any induction of Campylobacter-specific serological response in the vaccinated birds, which may explain the lack of protection in the vaccinated chicks.
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vandeputte2019in Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Vandeputte, Jasmien;Martel, An;Van Rysselberghe, Nathalie;Antonissen, Gunther;Verlinden, Marc;De Zutter, Lieven;Heyndrickx, Marc;Haesebrouck, Freddy;Pasmans, Frank;Garmyn, An;
Journal Poultry science
Year 2019
DOI
pez402
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