Journal
PREVENTIVE VETERINARY MEDICINE
Volume 44, Issue 1-2, Pages 9-20Publisher
ELSEVIER
DOI: 10.1016/S0167-5877(00)00100-8
Keywords
chicken-microbiological disease; Salmonella sp.; persistence; logistic regression
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A prospective survey was carried out in 86 broiler houses in western France to identify risk factors for Salmonella persistence in French broiler houses. The Salmonella status of the house after cleansing and disinfection, was assessed from gauze-swab samples taken from the walls, feeders, ventilation system and bedding (analysed with classical bacteriological methods). Thirty three (38%) houses had at least one contaminated sample and were classified as Salmonella-contaminated houses in the logistic regression. The absence of a terminal disinfection and a disinfection procedure performed by the farm staff rather than a contractor were positively related to the Salmonella contamination of the house after cleansing and disinfection. The risk for Salmonella persistence after decontamination was increased if rodents were observed by the farmer, if a large part of the access area to the house was accessible to trucks, and if a disease leading to a treatment occurred in the previous flock. (C) 2000 Elsevier Science B.V. All rights reserved.
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