File photo of a Canadian cow in a field near Teulon

 
File photo of a Canadian cow in a field near Teulon
A Canadian cow is pictured in a field near Teulon, Manitoba, in this July 28, 2006 file photo. The Canadian Food Inspection Agency said August 23, 2006 that tests have confirmed Canada's eighth case of mad cow disease in a mature beef cow from Alberta. REUTERS/Shaun Best/Files (CANADA)