I started doing something about a month ago and have had some really good results so I thought I would share.
When I wean the baby ASF's, I seperate them into two large tubs. Males in one, Females in the other. I do this each week adding new just weined babies in with the ones from the previous weeks.
Surprisingly, they do not fight AT ALL. I think the reason they don't fight is that the males have not had sex yet... And the females have not been pregnant yet. Right now there are asf's that were weined 6, 4, 3, 2 and 1 week ago in each of the 2 tubs. ASF's from the same and completely different blood lines... No fighting, and every single one that I put in the tubs is accounted for.
Is anybody else doing this? If not, give it a try, and report back with your results.