No data re: ferrets, but my cat, Cinnebar, used to *LOVE* Pounce treats of
all kinds...up until about 6-12 months ago when they changed the packaging.
He still looks interested when I rattle the bag or can, but once he gets a
sniff of them, he won't have anything to do with them.
 
Megan
[Posted in FML issue 2475]