My gilt is ~4 months old and lives with a barrow same age. This morning for nearly half an hour she tried repeatedly to mount him. Poor little guy was trying to spin away when he wasn't being mashed into the ground! LOL I assume this means she's in heat or almost? Isn't that kind of young? She's always been a bit aggressive. Is that likely to get worse? Little Puerco is Mr Sweetiepie mellow boy. If he weren't castrated would he be that charming? He really is a doll, I'm sorry their personalities aren't reversed. Despite all my fencing problems, if she were like him I'd keep and breed her. I'm still considering it, but if she were alone would she go nuts from boredom and loneliness? Get destructive and other problems?