The genus Campylobacter is a gram-negtaive, non-spore forming rod with several species. Campylobacter infections are present in the intestine of many animal species and has been isolated, for instance, from cattle, sheep and pigs, respectively. In the majority of cases the isolation of Campylobacter merely indicates an a-symptomatic presence in the gut, although it also can be associated with enteritis. The aim of this study is to check the possibility using serological antibody detection for the estimation of the herd prevalence of Campylobacter infections.