The eighth case of BSE, found on August 9 on a commercial beef cow on a farm
in northern Alberta, Canada was most likely caused by feed ingredients,
according to investigation of the Canadian Food Inspection Agency
Dr. George Luterbach, a CFIA official, said "Worldwide, the most common route of the
BSE agent is believed to be orally, or through the consumption of contaminated
feed. Although the CFIA cannot determine where the cow has been born, and
therefore can not speak about the feed, the most common assumption is that the
animal in question was exposed to the BSE agent before the feed ban was
introduced or during the implementation of the feed ban in Canada."
Luterbach said animals are the most susceptible to the BSE agent during
their first year of life, and because the cow in question was approximately
eight to 10 years of age, it was likely exposed to the BSE agent through feed
before the ban.
discovery of the BSE infected cow, the CFIA immediately initiated an
epidemiological investigation based on the most recent World Organization for
Animal Health (OIE) recommended BSE guidelines. No part of the carcass entered
the human food sup ply or animal feed chain, a separate CFIA release said.
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