摘要:In a study of faeces from 475 slaughter-age cattle and sheep from 19 herds or flocks,Campylobacter species (C. jejuni and C. coli) were cultured from all production systems studiedand from 73.7 per cent (14/19) of herds or flocks.Within individual properties there was a higherprevalence in cattle than in sheep, with Campylobacter being most commonly isolated fromfeedlot cattle. The median prevalences and ranges were: for dairy cattle, six per cent (0–24%),feedlot beef cattle, 58 per cent (12–92%) pasture beef cattle, two per cent (0–52%), mutton sheep,0 per cent (0–4%) and prime lambs eight per cent. Listeria ivanovii was cultured from one dairycow but Yersinia enterocolitica was not cultured from any animal. Campylobacter is the leadingbacterial causative agent of acute diarrhoea in humans in many industrialised countries. Whilethe role of cattle and sheep in producing human campylobacteriosis either directly or viacontaminated food, remains to be epidemiologically clarified, this study suggests that theproduction system,particularly for cattle, may be an important consideration