I know she had mentioned a theoretical way to get rid of them at one point, and maybe now that we're cutting back on producing them we'll actually get to try it. From my understanding, the virus that causes these is NOT passed on during the first few weeks of their lives. So if you were to take a new born litter, and successfully foster it with mice or rats and completely cull the rest of your colony, you should end up with a group of ASF's that won't end up with tumors. I'm not sure if this has been done successfully or not, dealing with all the rodent stuff is Connie's department around here -- I just feed them to the snakes. If I remember, I'll ask her about it tomorrow or maybe even get her to hop on here and get a little more specific.
thats wierd when i had them i never got that! and i know of others who have/had them and they didnt have this either