Tasty Treat: Are Sweet Potatoes Better Than Carrots?

Question: A friend suggested feeding my horses raw sweet potatoes as treats because they have less sugar than carrots. I hadn't given much thought to this. Is she onto something here?

Kentucky Equine Research responds:  Both sweet potatoes and carrots can be offered to your horses as treats. Carrots contain about 88 percent water, while sweet potatoes have about 77 percent, making sweet potatoes slightly more nutrient-dense. Both are relatively poor sources of protein because of the high water content (carrot, 0.9 percent; sweet potato, 1.6 percent; as fed).

The primary nutrient difference lies in the carbohydrate content of the two root vegetables. Although the fiber content (carrot, 2.8 percent; sweet potato, 3 percent; as fed) and the simple sugar content (carrot, 4.7 percent; sweet potato, 4.2 percent; as fed) are similar, sweet potatoes are much higher than carrots in starch (12.9 percent and 2.1 percent; as fed, respectively). Looking more closely at the type of starch in the sweet potatoes, 80 percent is rapidly digestible (enzymatic digestion), while only 11 percent is resistant starch only fermentable by microbes). Sweet potatoes provide over twice the calories that carrots do (86 and 41 calories, respectively, per 100 g), mostly because of the difference in starch content. In this context, “as fed” refers to raw vegetables and “dry matter” to dehydrated vegetables.

While dehydrated sweet potatoes have less sugar than dehydrated carrots (18 percent and 40 percent, respectively), they have similar levels when fed raw (4.2 percent and 4.7 percent, respectively), as noted previously.

Both are rich sources of beta-carotene, which is the precursor to vitamin A.

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Despite their names, sweet potatoes and Irish potatoes are not closely related from a botanical standpoint. Sweet potatoes and yams are vines in the morning glory family, whereas Irish potatoes are in the nightshade family. Sweet potatoes do not contain the nutritional anti-factors that make raw Irish potatoes unsafe for horses to consume.

Sweet potatoes can be a tasty treat for horses either raw or cooked. Due to their relatively high starch and sugar content, they should be fed in only small amounts. Feeding large amounts carries some risk, especially when given to starch-sensitive horses. In addition to beta-carotene, sweet potatoes are a good source of vitamin C and potassium.

Read more here.

Reprinted courtesy of Kentucky Equine Research. Visit ker.com for the latest in equine nutrition and management, and subscribe to Equinews to receive these articles directly.

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‘Tis The Season: Top Five Winter Hoof Care Tips

The American Farriers Journal has released a checklist of winter hoof care tips that can help horse owners keep their horses' hooves healthy during the difficult cold season.

First, the AFJ recommends maintaining a regular shoeing or trimming interval.

“Even though hooves grow more slowly during fall and winter, regular farrier care is important,” states the AFJ. “If shoes are pulled for the winter, hooves may need to be trimmed more frequently.”

A second tip is to keep stalls and run-in sheds clean and dry with regular maintenance, including manure/soiled bedding removal.

Another part of the horse owner's daily winter routine should be checking and cleaning out each hoof. Regular visual exams can help detect early changes that could signify the beginning of larger problems, and regular cleaning will help prevent a dangerous buildup of snow/ice.

Fourth on the list is to maintain anti-thrush measures.

“In milder winter climates, mud can create as big a problem as snow and ice,” the AFJ warns.

Finally, consider your horse's changing nutritional needs during the winter months. Vitamins A and E are mainly provided by hay, but those levels can drop to less than 20 percent of normal by winter's end. Additional supplementation may be necessary, but as always, consult your veterinarian and farrier for specific advice.

Check out the full checklist at the American Farriers Journal.

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