Abstract

CHACANA, P. et al. Immunogenicity of inactivated Salmonella sp vaccines used in the poultry industry in Argentina. Rev. vet. [online]. 2020, vol.31, n.1, pp.69-73. ISSN 1669-6840.  http://dx.doi.org/10.30972/vet.3114636.

Salmonellosis is one of the most widespread infectious diseases worldwide, affecting humans and several animal species, and it has been historically linked to poultry production. Salmonella sp is a food-borne microorganism with impact on public health and also on the global trade of poultry products and by-products. Vaccination is one of the main tools to the pathogen and its effectiveness requires quality controls to measure their immunogenicity. The objective of this work was to determine the immunogenicity of three commercial avian Salmonella sp vaccines used in Argentinean poultry production by immunizing groups of birds and determining specific serum titers. Groups of birds were vaccinated according to a standardized procedure that comprises two vaccinations. Diversity was observed in the agglutination titers against Salmonella enteritidis among the vaccines analyzed, although all of them generated seroconversion in the birds. The vaccine 1 presented the biggest title averages, as much in the first one as in the second vaccination, being continued by the vaccine 3 and the vaccine 2. The final goal of the control of vaccines is to stimulate continuous improvement of their quality to produce safer food for the population.

Keywords : poultry; Salmonella sp; inactivated vaccines; immunogenicity; quality control.

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