Frequently Asked Questions

My horse suffers from HYPP. What should I feed to help her cope with this disorder?

HYPP, or hyperkalemic periodic paralysis, is a genetic disorder in Quarter Horses and other breeds that cross with Quarter Horses. HYPP causes an error in the sodium pump in the muscles. The disorder can be traced to a stallion named Impressive. Genetic tests are available to identify and confirm the problem. HYPP-positive horses develop paralysis when exercised. The episode is brought on by an elevated blood potassium level, and blood potassium is diagnostic. To help the horse cope with the problem, you must keep potassium intake low and consistent. The biggest enemy to the horse is a high potassium meal. If you can support the horse’s energy needs with oats, a mineral supplement and grass hay, you will minimize the potassium intake. Avoid alfalfa hay, molasses and feeds with added potassium. Pasture seems to be the forage of choice when it is available because intake is spread over the entire day and is less likely to cause a potassium peak. HYPP-positive horses fed the proper diet and receiving appropriate medication can be useful animals for many years. Ask your veterinarian help you with this problem.

Ultra Dynamix is a good choice for horses with HYPP. Ultra Dynamix is a pelleted ration with a potassium level lower than most other horse feeds.