Leave them as the stable colony they are. ASF's communally raise their young. All nursing females will nurse all young in turn and even dad and the bigger babies will take a turn keeping the young ones warm and doing butt washing duties.

I've been told that removing adults out of their social group can cause major problems later when you try to return them. They may be then perceived as a stranger and attacked.

Here's a picture of an adult female on a young litter with two older littermates helping to mind the little ones. These aren't even her babies, their actual mother was off eating so "auntie and the big kids" took their turn minding the litter.



Btw, mind the adult male. The females can be quite protective of the young but he can be absolutely protective and isn't afraid of anything.