National surveillance of Campylobacter in broilers at slaughter in Denmark in 1998

A. Wedderkopp, Erik Rattenborg, Mogens Madsen

    Research output: Contribution to journalJournal articleResearchpeer-review


    A surveillance study for thermophilic Campylobacter spp. in broiler flocks was carried out fur the year 1998 in Denmark. The study included examinations of 4286 broiler flocks comprising samples from 57,000 birds. Overall, a hock prevalence of 46.0% was recorded. The species distribution was Campylobacter jejuni 86%, Campylobacter coli 11%, Campylobacter lari 1%, other not further diagnosed species 2%. The prevalence was significantly higher in the period from June to October (3.2 <odds ratio [OR] <1.8, P <0.0002) and was significantly associated with abattoir (OR <2.8, P <0.0001) and the length of the period the broiler houses were left empty between flocks (download period; 6 days or more) (OR = 1.6, P <0.0198). No association between Campylobacter colonization and the age at slaughter was found. Separating the flocks into batches for slaughter elevated the dock prevalence from 0.41 after the first hatch had been slaughtered to 0.46 after all batches had been slaughtered.
    Original languageEnglish
    JournalAvian Diseases
    Issue number4
    Pages (from-to)993-999
    Publication statusPublished - 2000


    • seasonal variation
    • surveillance
    • prevalence
    • C. lari
    • broilers
    • Campylobacter colonization
    • C. coli
    • C. jejuni


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