Passive Immunity of Progeny from Broiler Breeders Vaccinated...

Passive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidis A. Y. Inoue,AC A. Berchieri Jr. ,B A....

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Passive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidis A. Y. Inoue,AC A. Berchieri Jr. ,B A. Bernardino,A J. B. Paiva,B and E. V. SterzoB A Fort Dodge Animal Health, Rua Luiz Fernando Rodriguez, 1701, CEP 13064-798, Campinas, Sa˜o Paulo, Brazil B Department of... Plus

Passive Immunity of Progeny from Broiler Breeders Vaccinated with Oil-Emulsion Bacterin Against Salmonella Enteritidis A. Y. Inoue,AC A. Berchieri Jr. ,B A. Bernardino,A J. B. Paiva,B and E. V. SterzoB A Fort Dodge Animal Health, Rua Luiz Fernando Rodriguez, 1701, CEP 13064-798, Campinas, Sa˜o Paulo, Brazil B Department of Veterinary Pathology, Avian Pathology Laboratory, Sa˜o Paulo State University, Jaboticabal, Sa˜o Paulo, Brazil Received 4 March 2008; Accepted and published ahead of print 6 June 2008 SUMMARY. Young poultry are very susceptible to Salmonella Enteritidis (SE) infections because of the absence of complete intestinal flora colonization and an immature immune system. This study evaluated the role of passive immunity on the resistance of young birds against early infections caused by SE. The progeny of broiler breeders vaccinated with an oil-emulsion bacterin was compared to the progeny of unvaccinated birds. Efficacy was determined by challenging birds at 1 a Moins

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