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    Carry-over of thermophilic Campylobacter spp. between sequential and adjacent poultry flocks (2011)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Alter, Thomas (WE 8)
    Weber, Rita Margarete
    Hamedy, Ahmad
    Glünder, Gerhard
    Forschungsprojekt
    FBI - ZOO: Untersuchungen zur Tenazität ausgewählter Campylobacter jejuni/coli- und Yersinia enterocolitica-Stämme in Lebensmittelmatrizen (TP 08)
    Quelle
    Veterinary Microbiology; 147(1-2) — S. 90–95
    ISSN: 0378-1135
    Sprache
    Englisch
    Verweise
    DOI: 10.1016/j.vetmic.2010.06.005
    Pubmed: 20619560
    Kontakt
    Institut für Lebensmittelsicherheit und -hygiene

    Königsweg 69
    14163 Berlin
    +49 30 838 62550
    lebensmittelhygiene@vetmed.fu-berlin.de

    Abstract / Zusammenfassung

    Nineteen flocks of four poultry species were monitored at a veterinary field station to investigate the distribution and spread of Campylobacter genotypes between sequential and adjacent flocks. Caecal and liver samples were obtained at frequent intervals from birds of all flocks and examined for Campylobacter. Amplified fragment length polymorphism (AFLP) analysis was performed to genotype Campylobacter isolates. Of the 1643 caecal and liver samples investigated, 452 (27.5%) caecal samples and 11 (0.7%) liver samples contained Campylobacter. Of the caecal isolates 76.3% were identified as Campylobacter jejuni and 23.7% were identified as Campylobacter coli. Poultry flocks were largely colonized by more than one AFLP type and an intense exchange of Campylobacter genotypes between different poultry flocks occurred. These findings indicate that multiple genotypes can constitute the Campylobacter population within single poultry flocks, hinting to different sources of exposure and/or genetic drifts within the Campylobacter population. Nevertheless, in most flocks single Campylobacter genotypes predominated. Some strains superseded others resulting in colonization by successive Campylobacter genotypes during the observation period. In conclusion, the data demonstrate that the large genetic diversity of Campylobacter must be considered in epidemiological evaluations and microbial risk assessments of Campylobacter in poultry.