They breed, raise, sell Quarter horses and show horses on the American Quarter Horse Association (AQHA) circuit. If you like ...

On April 8, a 2-year-old Quarter Horse filly in Garvin County, Oklahoma, tested positive for equine infectious anemia (EIA).

Proponents of this unsubstantiated claim, including the American Association of Equine Practitioners (AAEP), the American Veterinary Medical Association (AVMA), and the American Quarter Horse ...