Join Date: Oct 2009
Location: Just south of sanity
They sound like warbles, which are a type of bot fly larvae.
Your horse needs aggressive treatment, not just dewormer, especially if this is the second year that warbles are appearing.
The larvae live under the skin until they're ready to mutate into adults. Bot flies lay their eggs on a horse's legs or chest; basically anywhere that the horse will rub with his face. The tiny larvae burrow into the horse's lips and migrate to other areas of the body until they've reached the stage where they emerge to turn into adults.
Disgusting, vile creatures. I not only deworm regularly, I have a bot knife that I use to cut off any eggs while the bot flies are in season.
Cattle, sheep, rodents, horses and even people are all subject to bot larvae if not treated promptly.
If your horse is eating his own feces, he's not getting something nutritionally that he needs. Horses generally stop their coprophagia when their correct dietary/mineral needs are being met.
As far as not calling the vet because you're at a boarding barn, that's ludicrous. I always had my OWN vet when I boarded. I never let the BO make any decisions concerning my animal's health care.
Last edited by Speed Racer; 06-28-2010 at 11:29 AM.