Oh dear!
Do you have ferrets mate????. You go on about breeding your "wild euro poley" bloodline down to exactley 12 %(no more ,no less !)
So I have to assume you`re a bit of an expert on Mustelidae , So I would expect you to know why Hob ferrets get Neutered.
But if not I`1l repeat it again, It is so that more than one Hob can be kept together without them trying to kill each other or kicking the crap out of each other. THAT is what the point is. It has no effect on them working and makes safe animal husbandry easier for folk that do not have the facillities to split them up
Why