tailieunhanh - Báo cáo khoa học: "Dissemination and tracking of Salmonella spp. in integrated broiler operation"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Dissemination and tracking of Salmonella spp. in integrated broiler operation | J. Vet. Set. 2007 8 2 155-161 JOURNAL OF Veterinary Science Dissemination and tracking of Salmonella spp. in integrated broiler operation Aeran Kim1 Young Ju Lee2 Min Su Kang1 Sang Ick Kwag3 Jae Keun Cho4 1 National Veterinary Research and Quarantine Service Ministry of Agriculture Forestry Anyang 430-824 Korea 2College of Veterinary Medicine Kyungpook National University Daegu 702-701 Korea 3 College of Veterinary Medicine Chonnam National University Gwangju 500-757 Korea Daegu Metropolitan City Research Institute of Health Environment Daegu 706-732 Korea Controlling Salmonella in integrated broiler operation is complicated because there are numerous potential sources of Salmonella contamination including chicks feed rodents wild poultry operations and the processing plant. The objective of this study was to investigate the distribution of Salmonella through all phases of two integrated broiler operations and to determine the key areas related to the control of all known sources of infection. Two different Salmonella serotypes were observed at integrated broiler chicken company A. S enteritidis the predominant company A isolate was consistently found in the breeder farm hatcheries broiler farms and chicken slaughterhouse. At company B a total of six different serotypes s. heidelberg s. Senftenberg s. enteritidis s. blockley s. gallinarum and s. virchow were detected. Although s. heidelberg was not found in the broiler farms it was consistently found in the breeder farm hatcheries and chicken slaughterhouse. In addition s. enteritidis was found in the hatcheries broiler farm and chicken slaughterhouse. In order to obtain the genetic clonality 22 s. enteritidis isolates were digested with Xbal and analyzed by pulsed-field gel electrohporesis PFGE . A difference in the PFGE pattern was found to be related to the origin of the integrated broiler operation. These data support the critical need to control Salmonella in breeder farms and hatcheries and demonstrate .