 Veteran
Posts: 253
    Location: EDGE OF INSANITY | we use them on 15-20 mares/year. They work, but a couple of things can be aggravating
1. they can be annoying to the mare, so if she decides to vigorously scratch her behind, they can rub off, or be falsely activated
2. we have had instances where the mare foaled ,but instead of the magnet popping out, the stitches holding it in ripped and it was never activated
3. they get covered in poop and well, its just kinda gross lol |