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10 Tips for Choosing the Best Hay for Your Horse
High-quality hay can be an important source of essential nutrients in your horse’s diet. A horse’s
protein and energy requirements depend on age, stage of development, metabolism and workload.
A mature horse will eat 2 to 2.5% of its body weight a day, and for optimum health, nutritionists
recommend that at least half of this should be roughage such as hay. For a 1000-pound horse, that
means at least 10 pounds of roughage each day.
Hay generally falls into one of two categories – grasses or legumes. Legume hay is higher
in protein, energy, calcium and vitamin A than grass hays. While hay alone may not meet the total
dietary requirements of young, growing horses or those used for high levels of performance, highquality
hay may supply ample nutrition for less active adult horses.
Once you’ve determined the best category of hay for your horse, most people select hay
based on how it looks, smells and feels. Use the following tips from the American Association of
Equine Practitioners to select the best hay for your horse:
1. It’s what’s inside that counts. Ask that one or several bales are opened so you can evaluate the
hay inside the bales. Do not worry about slight discoloration on the outside, especially in
stacked hay.
2. Choose hay that is as fine-stemmed, green and leafy as possible, and is soft to the touch.
3. Avoid hay that is overcured, excessively sun-bleached, or smells moldy, musty, dusty or
fermented.
4. Select hay that has been harvested when the plants are in early bloom for legume hay or before
seed heads have formed in grasses. Examine the leaves, stems and flowers or seed pods to
determine the level of maturity.
5. Avoid hay that contains significant amounts of weeds, dirt, trash or debris.
6. Examine hay for signs of insect infestation or disease. Be especially careful to check for
blister beetles in alfalfa. Ask the grower about any potential problems in the region.
7. Reject bales that seem excessively heavy for their size of feel warm to the touch, as they could
contain excess moisture that could cause mold, or worse, spontaneous combustion.
8. When possible, purchase and feed hay within a year of harvest to preserve its nutritional value.
9. Store hay in a dry, sheltered area out of the rain, snow and sun, or cover in the stack to protect
it from the elements.
10. When buying in quantity, have the hay analyzed by a certified forage laboratory to determine
its actual nutrient content.
Remember that horses at different ages and stages of growth, development and activity
have different dietary requirements. Consult your veterinarian or a qualified equine nutritionist
when formulating your horse’s ration. He or she can help you put together a balanced diet that is
safe, nutritious and cost-effective.
For more information about choosing hay, ask your equine veterinarian for the “Hay
Quality and Horse Nutrition” brochure, provided by the AAEP in partnership with Educational
Partners Bayer Animal Health and Purina Mills, Inc. More information about nutrition also can be
found online on the AAEP’s website, www.aaep.org/horseowner.
Reprinted with permission from the American Association of Equine Practitioners.