Wow, is this thread really from 2008? I had a mare who was never around a male horse at all and she produced milk and was not preggers. I was 12 at the time, so tried to milk her to get rid of it, which of course made more come in. It was really weird because I would milk her and leave it for the dogs to drink and the mare would drink her own milk. I eventually quite milking her and she dried up, lol.