For riders, stress levels rise each time their horse is injured or hospitalized. However, the stress of equine injuries can take their toll on the patient, too.

Dressage competitor Debbie McDonald understands the stresses of competition after logging more than 40 years in the show ring, including two Olympic equestrian appearances as well as bronze and silver medals at the World Equestrian Games.

However, McDonald also understands the stresses of equine injuries, especially after her long-time mount, Brentina, had to undergo colic surgery in 2009.

McDonald said Brentina is now fully recuperated, but her recovery took time. While Brentina was recovering, she was required to stay in her stall and, initially, could only have a small amount of hay every few hours. McDonald says she knew the stresses of stall confinement and limited hay could easily lead to equine stomach ulcers–an added problem that Brentina certainly didn't need