The prevalence of Campylobacter spp. in broiler flocks and on broiler carcases, and the risks associated with highly contaminated carcases

A baseline survey on the prevalence of Campylobacter spp. in broiler flocks and Campylobacter spp. on broiler carcases in the UK was performed in 2008 in accordance with Commission Decision 2007/516/EC. Pooled caecal contents from each randomly selected slaughter batch, and neck and breast skin from a single carcase were examined for Campylobacter spp. The prevalence of Campylobacter in the caeca of broiler batches was 75.8% (303/400) compared to 87.3% (349/400) on broiler carcases. Overall, 27.3% of the carcases were found to be highly contaminated with Campylobacter (>= 1000 c.f.u./g). Slaughter in the summer months (June, July, August) [odds ratio (OR) 3.50], previous partial depopulation of the flock (OR 3.37), and an increased mortality at 14 days (>= 1.25% to <1.75%) (OR 2.54) were identified as significant risk factors for the most heavily Campylobacter-contaminated carcases. Four poultry companies and farm location were also found to be significantly associated with highly contaminated carcases.