Source Tracking and Transmission Risk of Campylobacter Spp. On Mixed Produce Crop-livestock Farms Using Rotational Grazing

The goal of this study is to investigate the prevalence of Campylobacter spp, on farms integrating livestock and produce production by rotational grazing, and source track potential movement of strains between species (cattle-poultry; swine-poultry and small ruminants-poultry). The specific objectives are: 1) To determine the prevalence of Campylobacter spp. in livestock in mixed crop-livestock farms with rotational grazing of 2 different species (cattle-poultry; small-ruminants, swine-poultry); 2) To assess the inter-species transmission risk of Campylobacter genotypes in livestock sharing rotational grazing fields. 3) To assess the persistence of Campylobacter in the farm environment (compost, water troughs) and produce crops.