Prevalence of Campylobacter spp. from skin, crop, and intestine of commercial broiler chicken carcasses at processing

This study describes the prevalence of positive Campylobacter cultures from the skin, crop, and intestine of postscald broiler chicken carcasses at pr ocessing. Six to 12 carcasses from 22 flocks were sampled. Skin was culture d by direct plating of a cotton swab, whereas crop and intestine were cultu red from tissue that was aseptically harvested and stomached in PBS before plating. Cultures were not enriched prior to plating. The methods used in t his report are compared to those used by others. In this study, skin sample s were 78% positive; crops were 48% positive, and intestines were 94% posit ive (n = 202). Based on our results, if the intestine was positive for Camp ylobacter, the odds of finding a positive crop culture was 8.6 times greate r, and the odds of finding a positive skin culture was 35 times greater tha n if the intestinal culture was negative for Campylobacter. These data sugg est that the intestine was the most likely organ of those tested to be posi tive in postscald broiler carcasses from positive flocks. Further, if only one organ can be sampled, intestinal samples are most likely to reflect the prevalence of Campylobacter in a flock.