As USDA traces the origins of the cow identified in the United States as having bovine spongiform encephalopathy, some signs do point to Canada. If the animal originated there, some industry watchers think it could lessen the economic impact on the U.S. beef industry. Although the findings are not yet confirmed, the cow may have come from Alberta, Canada. That's the same province where Canadian officials discovered a BSE-positive cow last May. There are some discrepencies in the U.S. and Canadian data on the U.S. cow, including the animal's age. DNA tests will be conducted to help determine whether the cow in question has connections to Canada. The ability to trace the animal and get a detailed account of its origin and potential mode of BSE exposure is important because it could help the U.S. beef market– and export sales– recover more quickly. The United States has banned animal products in cattle feed– the most likely exposure vehicle for BSE– since 1997. The animal is believed, but not confirmed, to have been born before that. It can take up to five years for an animal to express symptons of BSE. Also, if no additional animals test positive for BSE, that will encourage a quicker market recovery.