http://www.smartgroups.com/message/readmessage.cfm?gid=1423922&messageid=583 >I have been informed today that canned tuna in oil, contains botulism >and can easily kill a ferret. Misinformed is the proper term. Properly canned foods don't have botulism in them. Not to worry. Your little bit of tuna steak won't harm your ferrets. I don't recommend an all-fish diet, but a little here or there won't hurt at all, and they may even benefit from those good fish-origin omega 3 fatty acids. With kindest regards, Bruce Williams, DVM [Posted in FML issue 3861]