Cattle water troughs as reservoirs of Escherichia coli O157

Article Abstract:

Escherichia coli O157 can survive in water trough sediments on cattle ranches for over six months and can still infect calves. This shows that water trough sediments contaminated with feces can be a source of infection. This strain of E. coli can cause serious disease in humans.

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Increasing prevalence of Campylobacter jejuni in feedlot cattle through the feeding period

Article Abstract:

The prevalence of Campylobacter jejuni in commercial feedlot cattle is monitored throughout the feeding period by repeated bacteriologic culture of feces. Results reveal apparent transmission of Campylobacter jejuni among feedlot cattle during the feeding period, unaffected by water chlorination, resulting in a high prevalence of Campylobacter jejuni excretion by cattle approaching slaughter.

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Comparison of cultures from rectoanal-junction mucosal swabs and feces for detection of Escherichia coli O157 in diary heifers

Article Abstract:

The fecal culture for Escherichia coli O157:H7 is compared to rectoanal mucosal swab (RAMS) culture in diary heifers. RAMS enrichment culture is as sensitive as fecal culture using immunomagnetic separation (IMS), is cheaper than fecal IMS culture and can yield quantitative data.

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