According to Canadian media outlets, the Canadian Food Inspection Agency (CFIA) says a small amount of residual contaminated feed was the most plausible cause of a case of bovine spongiform encephalopathy (BSE) discovered last February on a farm near Edmonton, Alb.

In a detailed Nov. 30 report, CFIA said no significant events could be linked to this BSE case — the 19th in Canada — which prompted a few countries to place temporary restrictions on Canadian beef imports.

"No significant events could be linked with this case but the potential for the carry-over of a small amount of residual contaminated feed could not be discounted," the CFIA report says.

The report is available online at http://www.inspection.gc.ca/animals/terrestrial-animals/diseases/reportable/bse/investigations/report-case-19/eng/1448461331857/1448461332731.

Read more about the story at http://www.ctvnews.ca/canada/small-amount-of-feed-likely-cause-of-alberta-mad-cow-disease-case-cfia-1.2680468.