Some ferret treats are not good for them at all.  If they contain any
dried fruit, it can clog a ferret real quick.  Some ferret treats have
lots of banana chips in them.  Just because it says it's for ferrets,
doesn't mean it's good for them.  Hartz Mountain feeds are often
dangerous to a number of animals (lack nutrition).  I've heard of birds
starving to death while "eating" their bird seed (because so many of
the seeds were empty).
 
Don't let the fact that it has "ferret" in the name fool you.
 
Gary
[Posted in FML issue 4326]