
Alfalfa for Horses – Is It a Wise Choice?
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What is Alfalfa?
Alfalfa, like clover, is not a grass hay. Instead, this is a legume – a member of the pea family. Like grass hays, it is grown in fields and then cut, dried, and baled for storage; however, that’s pretty much where the similarity ends.
Alfalfa Pros
Let’s start with the obvious: palatability. Whether it’s in the form of hay, chaff, or pellets, alfalfa is one of the sweetest treats you can offer your horse. They will consume vast amounts of this hay, which makes it ideal for picky eaters or sick horses. Many a poorly horse has been tempted into eating by a flake of alfalfa or, even better, a handful of soaked pellets. And its high nutritional value makes this a useful feed to carry a sick horse with a diminished appetite through its illness.
The protein so abundantly present in alfalfa is an essential nutrient and fairly digestible in this hay. Protein is essential for growth and healing; it’s the building blocks of the body, and many important components of your horse’s metabolism – including DNA and enzymes – consist of protein. Especially for growing, pregnant, high-performance, or lactating horses, alfalfa can provide plenty of this nutrient to allow the horse to grow, develop muscle tone, and repair tissues damaged by hard work.
Calcium is another important nutrient for bone development. If used to appropriately balance a diet, it can be useful in alfalfa.
Alfalfa Cons
The calcium:phosphorus (Ca:P) ratio is another major problem in the feeding of alfalfa. In fact, alfalfa contains so much calcium that it can actually hinder the horse’s ability to metabolize calcium. When the horse’s body is using a lot of calcium – such as during strenuous work, especially endurance riding – the body is capable of drawing calcium from the bones. When blood calcium is too high as a result of eating too much alfalfa, this mechanism is hindered, and the horse may actually become calcium deficient. The low phosphorus in alfalfa is also a major concern; calcium and phosphorus work together to develop the horse’s bones, and where phosphorus is inadequate, calcium can’t do its job.
Even the high protein levels of alfalfa can become problematic if poorly managed. Alfalfa is about 15% protein; to put that into perspective, the average adult horse in light to moderate work only needs 10% protein in its diet. A horse being fed a diet of alfalfa and a typical concentrate mix containing 12% protein is consuming way too much protein. While most horses simply expel excess protein in the urine as ammonia, horses with liver or kidney problems will not be able to metabolize all this protein. And even if they do, the high levels of ammonia in the urine can cause all sorts of problems – like eye and respiratory issues from standing in stables with urine-soaked bedding.
What's the Solution?
So should alfalfa never be fed to horses? No. This hay is still a good feed – it just has to be balanced accordingly.
Alfalfa should never be fed as the horse’s main source of roughage. Standlee Hay Company Timothy Bale should still make up the bulk of every horse’s
Standlee Hay Company Timothy Bale
However, adding a bit of alfalfa to the diet – a flake or so once or twice a day – can benefit your horse greatly. Especially where the grass hay is low in protein, alfalfa can help boost the protein content of your horse’s diet to an appropriate level. Horses being fed large quantities of plain grains such as Bluebonnet Feeds Race Horse Whole Oats or wheat bran will probably be consuming way too much phosphorus; the addition of alfalfa will balance out the Ca:P ratio to healthy proportions.
Bluebonnet Feeds Race Horse Whole Oats
Especially in its pelleted form like Standlee Hay Company Premium Alfalfa Pellet, alfalfa is an excellent food for tempting sick horses. Alfalfa pellets sometimes also contain a vitamin/mineral mix that balances out that pesky Ca:P, so consult the label on the feed bag to be sure.
Conclusion
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