title: Prevalence and antimicrobial susceptibility of Salmonella isolates in Pekin ducks from South Korea.
abstract: An investigation was carried out to determine the prevalence and antibiotic resistance of Salmonella serotypes at South Korean duck farms. A total of 7119 samples collected from 72 duck farms in five provinces were examined from 2011 to 2012. The overall prevalence of Salmonella serotypes was 43.4% (69/159) in duck flocks from 65.2% (47/72) of the duck farms. Eighty-five strains were isolated from 69 duck flocks. Three serotypes of Salmonella enterica were identified such as S. Typhimurium (39/85), S. Enteritidis (44/85), and S. London (2/85). The prevalence of Salmonella infection decreased significantly in 3-week-old ducks compared to that in 1-week-old ducks (P<0.05). All isolates except one were resistant to at least one antimicrobial and 27% of the isolates were resistant to 5-16 antimicrobials. Our findings provide baseline information on the degree of Salmonella infection and distribution of Salmonella serotypes in ducks and indicate that ducks should be considered an important source of foodborne pathogens.
authors.affiliation: Department of Infectious Diseases & Avian Diseases, College of Veterinary Medicine and Korea Zoonosis Research Institute, Chonbuk National University, Chonbuk, South Korea.
authors.forename: Se-Yeoun
authors.initials: SY
authors.lastname: Cha
authors.forename: Min
authors.initials: M
authors.lastname: Kang
authors.forename: Ran-Hee
authors.initials: RH
authors.lastname: Yoon
authors.forename: Choi-Kyu
authors.initials: CK
authors.lastname: Park
authors.forename: Oun-Kyoung
authors.initials: OK
authors.lastname: Moon
authors.forename: Hyung-Kwan
authors.initials: HK
authors.lastname: Jang
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001426:Bacterial Proteins / Q000235:genetics; D019757:Carbon-Oxygen Lyases / Q000235:genetics; D024901:Drug Resistance, Multiple, Bacterial / Q000235:genetics; D004372:Ducks; D008826:Microbial Sensitivity Tests; D011201:Poultry Diseases / Q000453:epidemiology* / Q000382:microbiology; D015995:Prevalence; D056910:Republic of Korea / Q000453:epidemiology; D012481:Salmonella Infections, Animal / Q000188:drug therapy / Q000453:epidemiology*; D019779:Salmonella enterica / Q000187:drug effects* / Q000302:isolation & purification* / Q000472:pathogenicity; D012703:Serotyping
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; C075518:invA protein, Bacteria; D019757:Carbon-Oxygen Lyases; C527194:phosphothreonine lyase, Salmonella enterica
keywords: Antimicrobial resistance; Ducks; Prevalence; Salmonella serotype