Dont breed them if they are brother or sister
the kits will be deformed and you dont want that.
you could still take your hob to the vets.
Dont breed any ferrets if they are related in any way.
I catch them in a little stream a couple of miles from me
where i go for trout but when the trout arent biting i go for them
and i just use a bare hook caught loads of the little feckers.