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Pakpoom Tadee,Kittipong Kumpapong,Danai Sinthuya,Panuwat Yamsakul,Nipa Chokesajjawatee,Supachai Nuanualsuwan,Suchawan Pornsukarom,Bayleyegn Z. Molla,Wondwossen A. Gebreyes,Prapas Patchanee 대한수의학회 2014 Journal of Veterinary Science Vol.15 No.2
This study was conducted to analyze the prevalence andquantitative loads of Salmonella spp. on pig farms in ChiangMai, Lamphun, Thailand to assess loading levels beforeslaughtering. The serotype diversity, antimicrobial-resistancepattern and pulse-field type of Salmonella spp. were alsocharacterized to assess the dynamic propagation of thepathogen. The Salmonella-positive prevalence was 246/805(30.56%), and the quantitative loads varied from 1.48∼4.04Log10MPN/g, with a mean ± standard deviation of 2.11 ± 0.57. AMP/S/TE (ampicillin/streptomycin/tetracycline) was thehighest frequency antimicrobial resistance pattern found inthis study. In addition, Salmonella Rissen was the primaryserotype in this region. PFGE results indicated the occurrenceof infection by cross contamination among pig farms. Ourstudy showed that pork is easily contaminated with thispathogen. Farm control programs must be based on strictbiosecurity and hygienic measures, which could furtherreduce the contamination pressure at slaughterhouses orretail shops.