A cross-sectional study of Salmonella in pre-slaughter pigs in a production compartment of northern Thailand

Preventive Veterinary Medicine
S Dorn-InK-H Zessin

Abstract

A cross-sectional study was conducted to determine the prevalence of Salmonella and to associate management factors in fattening pigs in a production compartment of northern Thailand. A total of 194 fecal samples and 166 environmental samples were collected from 22 fattening pig herds for isolation and identification of Salmonella. An additional 427 serum samples were collected from the same herds to determine Salmonella antibodies using ELISA. A questionnaire was used to collect management factors likely to be associated with Salmonella identification. Prevalence of Salmonella in each sample and its confidence interval was adjusted for clustering by herds using linearization technique. A generalized estimating equation was used to determine the odds ratio and significance level for each management factor in a logistic regression model. Salmonella was found in all 22 study pig herds with a fecal sample prevalence of 63% (95%CI: 56-69%) and a serum sample prevalence of 72%. However, isolation results were not significantly different from ELISA results. The most isolated serotype was Salmonella Rissen (49%) followed by Salmonella Typhimurium (19%), Salmonella Stanley (12%) and Salmonella Weltevreden (4%) being significantly diffe...Continue Reading

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Citations

Sep 9, 2009·Foodborne Pathogens and Disease·Rene S HendriksenFrank M Aarestrup
May 21, 2010·Foodborne Pathogens and Disease·Arsooth SanguankiatReinhard Fries
Dec 30, 2011·Journal of Clinical Microbiology·Rene S HendriksenFrank M Aarestrup
Mar 1, 2012·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Nuvee PrapasarakulPadet Tummaruk

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