Your Horse: Avoid Being Felled by Fall Founder: If you’ve been involved with horses for any length of time, you’re no stranger to the anguish caused by laminitis. You may be aware of common causes of founder. For example: grain overload, endocrine disturbances, and overloading of supporting limbs, there’s one you may overlook: fall grazing.

Spring pastures contain high levels of sugar that can induce a bout of laminitis. However, a feeding frenzy in the fall could have the same effect.

Fall Founder:

“Some rain and a late-summer heatwave, especially after a long, dry summer, can cause pastures to have a growth spurt similar to what happens in the spring. These pastures can have high water-soluble carbohydrate levels, including both sugar and fructan, that may induce laminitis,” explained Catherine Whitehouse, M.S., a Kentucky Equine Research nutrition advisor. “Fall founder can also occur following the first frost.”

Cool-season forages such as tall fescue continue to grow late in the year, posing a risk for any horse or pony predisposed to developing laminitis. Further, cool-season grasses often experience a dramatic increase in sugar content after a frost.

“Grazing muzzles must be used for at-risk horses even in the fall to avoid pasture-associated laminitis,” Whitehouse said.

Management:

Using a research-proven buffer such as EquiShure will help minimize changes in hindgut pH, thereby stabilizing the intestinal microbiome.

Laminitis remains one of the most common reasons for euthanasia of horses. Above all, direct efforts at hoof health regardless of the season. One study* reports reasons related to euthanasia were attributed to disease stage, severity, and progression. For example, persistent lameness following a recent bout of laminitis commonly prompted owners to elect humane euthanasia.  A horse had a slow recovery from a laminitic episode. Some owners perceived their horses were at risk for future episodes and chose to euthanize.

“Owners were also more likely to elect humane euthanasia if slow recovery necessitated prolonged periods of time in a stall. Owners believed extended stall rest would negatively affect their horse’s psychological well-being and quality of life,” added Whitehouse.

Horses that have recovered from laminitis may benefit from a well-rounded hoof supplement. “Kentucky Equine Research offers high-quality products that include nutrients necessary for growth of strong, resilient hooves, such as biotin, zinc, methionine, and iodine,” shared Whitehouse.

In conclusion, do you have a specific question about your horse’s  health or diet? Visit Kissimmee Valley Feed today to check out our horse feed, hay and supplies!

Article Source: Kentucky Equine Research

*Pollard, D., C.E. Wylie, J.R. Newton, and K.L.P. Verheyen. 2020. Factors associated with euthanasia in horses and ponies enrolled in a laminitis cohort study in Great Britain. Preventative Veterinary Medicine 174:104833.

Seasonal Diet Changes for Horses: Pasture quality fluctuates with every season, but the shift in quality from summer to fall is significant.

During the fall, there are often warm, sunny days and cool nights. Pasture plants manufacture sugars in the presence of water, carbon dioxide and sunshine. They then use those sugars to fuel growth during the night. However, when nighttime temperatures drop in the autumn, it becomes too chilly for plants to grow and the sugars are stored for later use.  This leads to a concentration of stored sugars in the plants. In turn, it may increase the risk of digestive upset or laminitis in some horses.

Horses at most risk are those that are significantly overweight or those that have trouble managing normal blood sugar levels and are sensitive to sugar content in the diet.

Changing seasons also mean drastic swings in weather conditions and temperatures.  This, combined with a major diet adjustment of moving from pasture to hay, can increase the chance of digestive disturbances.

While not scientifically proven, many horse owners and veterinarians have experienced what appears to be an association between changes in barometric pressure and the incidence of colic episodes in horses. A dramatic drop in temperature often causes horses to drink less water. At the same time, horse owners will often increase the amount of hay fed to help horses stay warm.  More hay and less water consumption together may lead to impaction colic.

Hay:

As we move into fall and winter, hay becomes the major forage source for many horses.  Switching from pasture to hay or getting a new supply of hay represents as big a change to the horse as a change in grain. These significant dietary adjustments should ideally be made gradually to decrease the risk of digestive upset.

Horses should be fed good-quality hay to maximize nutrition and minimize potential digestive problems. Good-quality hay, of any variety, will be clean and have a high leaf-to-stem ratio, small-diameter stems. In addition, few seed heads or blooms, a fresh smell and appearance, and a bright color (faded, yellow or brown color may indicate aged hay or poor storage conditions). The maturity of the plant at harvest determines the hay quality more than any other factor. Young, leafy, immature plants contain more protein, energy, and minerals than older plants with thicker stems.  Also, as a plant matures, it contains more indigestible fiber (lignin). This reduces nutrient availability. Lower-quality hay must be supplemented with higher-quality feed to maintain horses’ good condition and health.

Fall is a season of transition and an important time to evaluate the quality of forage available for your horse and whether the grain ration is appropriate and adequate to meet your horse’s nutrient requirements. When winter arrives, horses must be in good condition to be able to withstand colder temperatures. Adjusting grain rations in the early fall will prevent weight loss due to lower-quality forage and, if horses need to gain weight, there is still time for a thinner horse to gain some before the cold weather really sets in.

For help dealing with Seasonal Diet Changes for Horses, visit Kissimmee Valley Feed!