TAILIEUCHUNG - Báo cáo khoa học: "Feed-borne Outbreak of Salmonella Cubana in Swedish Pig Farms: Risk Factors and Factors Affecting the Restriction Period in Infected Farms"

Tuyển tập các báo cáo nghiên cứu về bệnh thú y được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Feed-borne Outbreak of Salmonella Cubana in Swedish Pig Farms: Risk Factors and Factors Affecting the Restriction Period in Infected Farms. | Acta vet. scand. 2006 47 13-22. Feed-borne Outbreak of Salmonella Cubana in Swedish Pig Farms Risk Factors and Factors Affecting the Restriction Period in Infected Farms By J. Osterberg I. Vẵgsholm S. Boqvist S. Sternberg Lewerin Department of Disease Control National Veterinary Institute SE 751 89 Uppsala Sweden Feed-borne Outbreak of Salmonella Cubana in Swedish Pig Farms Risk factors and Factors affecting the restriction period in infected farms. Acta vet. scand. 2006 47 13-22. - In 2003 a feed-borne outbreak of Salmonella Cubana occurred in Sweden as a result of contamination in a feed plant. Salmonella Cubana was detected in 49 out of 77 pig farms having received possibly contaminated feed. In this study potential risk factors for farms being salmonella positive were examined and a survival analysis was performed to investigate risk factors affecting the restriction period for salmonella positive farms. The median restriction time for all 49 farms was 17 weeks. An increased risk for farms being salmonella infected positive in feed and or faeces was seen for fattening farms and farms feeding soy. The survival analysis showed that herds with a low level of infection and farms with a high hygiene level had shorter restriction times. This study is unique as it investigates a real outbreak of feed-borne salmonella where the source of infection was reliably identified the period of exposure could be defined and data were collected from all exposed farms. Feed-borne pigs swine riskfactor outbreak soy meal restriction period salmonella Salmonella Cubana Introduction In Sweden only a few cases of salmonella in food-producing animals are reported each year Thorberg and Engvall 2001 National Veterinary Institute 2001 Boqvist et al. 2003 National Veterinary Institute 2004 . This situation can be attributed to the organised Swedish salmonella control that started in 1961 to ensure safe animal products for human consumption. All findings of Salmonella spp. in feed animals .

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