DUNDURN, Sask. -- An international trade referee has sided with Canada in a long-running dispute over labelling beef and pork products produced in this country.

The World Trade Organization has ruled that U.S. rules that force country-of-origin labels on Canadian products violate trade agreements.

The decision is on an appeal of an original ruling from last fall that also went Canada's way.

Canadian meat exports to the United States have dropped sharply since that country first brought in country-of-origin labels.

Shipments of feeder cattle and slaughter hogs have dropped by about half since 2009.

Federal Agriculture Minister Gerry Ritz welcomed the trade organization's decision.