Wow that is an old thread to pop up.njust going to throw in some two cents as this got me going. The mare probably was having a false pregnancy or a hormone imbalance. I've had a proud cut gelding, the poor guy. Lol.
My friend had a proud cut gelding, they sent him and their mare ouut to the pasture for winter, brought her home in spring and a couple weeks later there was colt at her side! Then it died a couple months later:(