Antibiotic Resistance in Salmonella Isolates from Imported Chicken Carcasses in Bhutan and from Pig Carcasses in Vietnam
Abstract:The antibiotic resistance in Salmonella isolates from 400 imported chicken carcasses in Bhutan and from 178 pig carcasses in Vietnam were analyzed on a random basis against 14 antimicrobial agents. Among the poultry samples tested, 13% were positive for Salmonella. Salmonella Enteritidis dominated with a prevalence of 80.7%, and 40 of the 42 isolates harbored two or more resistance determinants. For the 178 pigs investigated, 49.4% of the swabs and 34.8% of the lymph nodes were Salmonella positive. The most prevalent serotypes in lymph nodes were Salmonella Derby (50.0%) and Salmonella Typhimurium (27.4%). From the Salmonella isolates from pigs, only 6% were sensitive to the antimicrobial agents tested. The high resistance level of Salmonella isolates from pigs and chicken carcasses to different classes of antimicrobials should be emphasized and encourage a prudent use of these agents in animal farming, especially in pig production.
Document Type: Research Article
Affiliations: 1: Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, D-12277 Berlin, Germany 2: National Centre for Animal Health, P.O. Box 155, Serbithang, Thimphu, Bhutan 3: Department of Animal Health, Ministry of Agriculture and Rural Development, 15/78 Giai Phong Road, Hanoi, Viet Nam 4: Faculty of Agro Industry, Chiang Mai University (CMU), Chiang Mai, 50100 Thailand 5: Free University, Berlin, Department of Veterinary Medicine, International Animal Health, Königsweg 67, D-14163 Berlin, Germany
Publication date: February 1, 2010
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