Its sort of like a chestnut, it grows on the back of the fetlock joint. Some horses have them short, most feathered horse might have them a little longer, you can pull them off like you can a chestnut.
Ergot
Ergot. It is very similar to the chestnuts on a horses leg, and they have no nerve endings. they can be cut off and the horse will not feel it.
ergot
It depends on wich part you are talking about. there are three. The feltlock, the pastern, and the ergot.
All horses have a ergot on the rear of their fetlock.I include this link as you don't state where on the fetlock. (see link)
Yes, much like chestnut on the inner legs, ergots can and will grow back over time.
I think the explanation is: Ergot is a fungus the grows on grains, so maybe if you ate spoiled grain it could have had ergot on it?
head, ear, eyes, tail, chestnuts (ergot's), hoof, skeleton, coat, voice, reproduction, intelligence, longevity
Ergot is the name of a toxic fungus that affects the rye plant.
Ergot is a kind of fungus that can infect cereal grains.
Ergot is the common name of a fungus in the genus Claviceps that is parasitic on certain grains and grasses.
www.ergot.org