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The Canadian Food Inspection Agency confirmed that a Manitoba
cow infected with bovine spongiform encephalopathy was born
"well before" 1997, when Canada introduced a ban on cattle
feed containing protein from cattle and other ruminants.
CFIA indicated the animal was purchased by its owner in
1992, meaning it was at least 15 years of age. Meanwhile,
the agency is tracing a calf that was born to the affected
cow in 2004.
Officials also are attempting to locate herdmates from the
animal's birth farm, though CFIA noted the investigation
may be hampered by few surviving animals and sources of
information.
CFIA said earlier that no parts of the animal's carcass
entered the human or animal food chains. The findings marked
Canada's sixth case of BSE since 2003.
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