MADISON–A whitetail deer shot on a Portage County hunting preserve has tested positive for chronic wasting disease causing the suspected farm from which the animal originated to be placed under quarantine.

A male whitetail deer shot in October at the Buckhorn Flats Game Farm, Almond, tested positive for the fatal brain disease. The buck was tested because of the mandatory CWD testing rules for all farm-raised deer. The Wisconsin Department of Agriculture, Trade and Consumer Protection requires that all deer and elk that die in captivity and are 16 months of age or older be sampled and tested for CWD.

A preliminary record check indicates that the positive deer was likely purchased in February 2002 from JoAnn Whitetails, Shawano. That farm, owned by Joseph Borntreger has been placed under quarantine.

A quarantine means only that no live animals may move off the farm. It does not mean that chronic wasting disease has been found on the property, state agriculture officials emphasize. Animal health investigators will continue to check records to confirm the source herd of the positive deer.

There are currently 17 Wisconsin farms under quarantines related to CWD.