title: Characterization of Salmonella spp. isolated from an integrated broiler chicken operation in Korea.
abstract: The purpose of this study was to investigate the biological and genetic characterization of persistent Salmonella isolates in an integrated broiler chicken operation, in an attempt to elucidate the source of contamination. From the breeder farm, the hatchery, the broiler farm and the chicken slaughter house of an integrated broiler chicken operation, a total of 6 serotypes were observed. Although S. Heidelberg was not detected in the broiler farm, it was consistently found in the breeder farm, the hatchery and the chicken slaughter house. Also, S. Enteritidis and S. Senftenberg were found in the hatchery and the chicken slaughter house, and the hatchery and the broiler farm, respectively. S. Gallinarum and S. Blockley were found only in the broiler farm, and S. Virchow was only recovered in the chicken slaughter house. Isolated S. Heidelberg, S. Enteritidis and S. Senftenberg strains were divided into 3, 5 and 7 types, respectively, on the basis of all properties. Especially, S. Senftenberg isolates, divided into four types by their antimicrobial resistance patterns, were all obviously the XbaI PFGE pattern. Also, four S. Enteritidis isolates resistant to nalidixic acid showed a difference in phage type and PFGE pattern. Such a different pattern was shown despite Salmonella isolates originating from an integrated broiler operation, suggesting that further epidemiological studies on many integrated chicken companies in Korea are needed.
authors.affiliation: College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea.
authors.forename: Young Ju
authors.initials: YJ
authors.lastname: Lee
authors.forename: Hyun Jung
authors.initials: HJ
authors.lastname: Kim
authors.forename: Cheong Kyu
authors.initials: CK
authors.lastname: Park
authors.forename: Ki Seuk
authors.initials: KS
authors.lastname: Kim
authors.forename: Dong Hwa
authors.initials: DH
authors.lastname: Bae
authors.forename: Min Su
authors.initials: MS
authors.lastname: Kang
authors.forename: Jae Keun
authors.initials: JK
authors.lastname: Cho
authors.forename: Ae Ran
authors.initials: AR
authors.lastname: Kim
authors.forename: Jong Wan
authors.initials: JW
authors.lastname: Kim
authors.forename: Byoung Han
authors.initials: BH
authors.lastname: Kim
mesh_terms: D000818:Animals; D001434:Bacteriophage Typing / Q000662:veterinary; D002645:Chickens; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D016521:Electrophoresis, Gel, Pulsed-Field / Q000662:veterinary; D005260:Female; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D011201:Poultry Diseases / Q000382:microbiology*; D012475:Salmonella / Q000235:genetics / Q000302:isolation & purification*; D012481:Salmonella Infections, Animal / Q000382:microbiology*; D012703:Serotyping / Q000662:veterinary
chemical_list: D004269:DNA, Bacterial