Czech J. Food Sci., 2011, 29(10):S102-S108 | DOI: 10.17221/311/2011-CJFS

Serological and bacteriological evaluation of Salmonella status in swine herds

František Šišák1, Hana Havlíčková1, Ján Matiašovic1, Renata Karpíšková2
1 Veterinary Research Institute, Brno, Czech Republic
2 National Institute of Public Health Prague, Brno, Czech Republic

The sera from 690 slaughtered fattening pigs from 15 farrow-to-finish swine herds (12 herds of unknown Salmonella status, 3 herds known as latently infected) in the Czech Republic were examined for Salmonella antibodies in a cross sectional study using an ELISA test. Salmonella seroprevalence ranging from 0% to 20% was found in 14 herds. Seroprevalence of 73.9 was found in 1 herd with previously unknown Salmonella status. A longitudinal study of the three previously identified latently infected herds found seroprevalence ranging from 23.9% to 83.4% in sows after farrowing. Salmonella findings from faeces in the farrowing sections ranged between 1.8 and 24.5, and in the environmental samples between 0 and 25. In weaned piglets, Salmonella findings from faeces ranged from 6.3 to 48.0, and in environmental samples from 0 to 90%. The most prevalent serotypes were S. Derby (56.8) and S. Typhimurium, phage type DT104 (18.5). The seroprevalence comparison in sows and slaughtered fattening pigs revealed variations in the course of Salmonella infection in swine herds.

Keywords: Salmonella seroprevalence; latent infection; swine herds; food safety

Published: December 31, 2011  Show citation

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Šišák F, Havlíčková H, Matiašovic J, Karpíšková R. Serological and bacteriological evaluation of Salmonella status in swine herds. Czech J. Food Sci. 2011;29(Special Issue):S102-108. doi: 10.17221/311/2011-CJFS.
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