CALGARY, Alberta, Feb. 8 Canada's ninth case of mad cow disease has been confirmed in a mature bull from Alberta.The Canadian Food Inspection Agency says preliminary information indicates the age falls within the range of previous cases, the Calgary Herald said.The agency said an epidemiological investigation is under way to examine what the animal was fed early in its life and to identify its herdmates.No part of the animal entered the human food or animal feed systems, investigators said.Copyright 2007 by UPI
