Donating Your Horse If you are considering Topfield Equestrian Center as a new home for your horse, please contact the office for more information. The equine assisted therapy program is a mentally and physically challenging job for a horse. Good therapy horses are sound at the walk, trot and canter, with three rhythmic and balanced gaits. We are looking for horses which consistently obey voice as well as leg signals. They should be quiet and well-mannered on the ground and willing to accept medical devices and equipment. The horse must work easily in hand and tolerate one or two people walking and trotting beside it. We prefer horses who are 18 years old or younger and under 16.2 hands tall.