http://www.smartgroups.com/message/readmessage.cfm?
gid=1423922&messageid=14498&startid=14501
 
Probiotics such as lactobacillus are safe, but they may not have any
benefits in a ferret.  The other questions is will the lactobacillus
survive the ferrets very acidic stomach.  Probably not.  Again it
will not hurt the ferret, but it may not help the ferret either.
 
Hope that helps,
Jerry Murray, DVM
[Posted in FML issue 4920]