Grains for Horses and Their Characteristics (2024)

Today grain makes up a significant portion of horses’ diets. The most commonly fed grains are oats, barley, and corn. This article discusses each of these.

The concentrate portion of the ration contains grains that are higher in energy and lower in fiber than roughages. Many grains are fed to horses. The most common are oats, barley, and corn. Wheat and milo are other grains fed to horses.

Oats

Oats are the most popular and safest grain to feed to horses. What makes oats a safe feed is the fiber content–about 13 percent. This means oats have more bulk per nutrient content, and horses have to eat more to satisfy their nutrient requirements. Bulk makes it more difficult for the horse to overeat and get colic or founder.

Kernels should be plump, heavy, and clean and have a bright color, clean smell, and a low ratio of husks to kernels. The heavier the oats, the more nutrient contained per unit of weight. U.S. No. 1 oats weigh 36 lb (16.3 kg) per bushel, whereas U.S. No. 4 oats weigh about 27 lb (12.2 kg) per bushel. Oats should be bought according to the least cost per unit of energy, provided they are clean and stored properly. Clean oats are important. Oats should be cleaned to remove dirt, weeds, other seeds, and broken kernels. Dust in oats indicates that the oats are old and may be of lesser quality. You can check to see if your oats are dusty by pouring them into a can and back into the sack. A musty smell indicates that the oats have been stored with too much moisture and will spoil. Oats should not have a sour or bitter taste.

Oats can be fed whole or processed. Processing includes crimping, rolling, or crushing the kernel. Whole oats are easily eaten and digested by the horse. If oats are processed, a slight crimp is sufficient. When the kernel coat is broken by processing, less chewing is required, and digestive juices have better access to the kernel.

Barley

Barley is very similar to oats as a feed except for some characteristics that affect how it is used. Barley is lower in fiber than oats and is classified as a “heavy” feed. Barley is more energy dense and weighs more per unit of volume (48 pounds per bushel, or 22 kg) than oats. The barley kernel is harder than the oat kernel, so it is usually rolled before feeding. If the barley kernel is crushed or ground, it is too heavy and can cause colic unless mixed with a bulkier feed such as wheat bran.

Corn

Corn is one of the most energy-dense feeds and contains a high content of carbohydrate. Corn has a high energy content per unit of weight and a high weight per unit volume. Therefore, a given volume of corn contains approximately three times the amount of energy as an equal volume of oats. Corn’s high energy content has led to it becoming known as “too hot” a feed for horses. However, if the horse is fed to meet its energy requirement, corn is an excellent feed.

Corn quality is judged by the moisture content and percentage of well-formed kernels. Very few damaged kernels should be present. In addition, kernels should be plump, firm, and separated. There should be no insect or mold damage. Moisture content should be less than 14 percent. The kernel is high in starch and readily fermentable; therefore, it can become toxic.

Corn can be fed in the following forms:

On the cob – This form can be used as a management tool for horses that bolt (eat too fast) their grain. However, older horses or horses with bad teeth have difficulty eating whole corn. Whole corn will keep longer than shelled corn, but it is more costly to store.

Shelled whole corn – Some whole-corn kernels will pass through the digestive tract without being digested. Therefore, it is advisable to process the kernels in some way to increase digestion.
Cracked corn – Cracking the corn kernel may be preferred because it allows digestive juices to enter the corn and increase digestibility.
Steamed rolled corn – Steam rolling further processes the corn kernel, creating more surface area for digestive juices and increasing digestibility.
Ground or crushed corn – This type of processing makes the corn kernel too small. If the corn passes through the small intestines too rapidly, it can lead to fermentation in the hind gut. This may lead to colic if the horse is being feed a high-concentrate diet. Whole-ear ground corn can be fed to horses because the cob is high in fiber and low in energy.

Wheat

Most wheat is used for human consumption, with little fed to horses. Wheat is fed to horses more in the Southwest and Northwest than other parts of the country. By-products of the milling process, such as wheat bran, are most commonly fed to horses. Wheat bran is the hard outer coating of the kernel. One popular way of feeding wheat bran is in the form of a mash. It is highly palatable and is frequently used to add bulk to a diet. It is also fed to increase phosphorus content. Wheat bran is 12 percent digestible protein. Wheat middlings are fine particles of the wheat kernel obtained during the milling process. If wheat middlings are fed to horses, they must be mixed with a bulky feed.

Wheat Bran and Wheat Middlings

Milo (Grain Sorghum)

Milo is a high-energy grain fed to horses primarily in the southwestern United States. It is a very heavy feed and should be mixed with a bulky feed to prevent digestive disturbances. It needs to be cracked to make it easier for horses to chew and digest. It may not be very palatable to some horses.

Molasses (Dried or Liquid)

Molasses is a popular component of mixed concentrate rations. It is a by-product of the sugar refining industry. Horses like the flavor. It is a cheap source of energy, and it reduces dust in the feed. Generally molasses should not exceed 10 to 12 percent of ration. Five percent is the most common amount added to a ration. Excessive amounts of molasses make the feed sticky and difficult to handle and can cause the feed to turn rancid.

Beet Pulp

Beet pulp can be dehydrated and used as a source of fiber and energy. It is relatively high in energy and calcium but low in protein, phosphorus, and B vitamins. It contains no carotene or vitamin D. Beet pulp is included in many high-performance diets to help ensure adequate fiber intake while meeting energy needs.

Soybeans or Soybean Meal

Soybeans

Whole, roasted soybeans and soybean meal are both used as a protein supplement to increase the protein content of a concentrate mix. Whole, roasted soybeans are not as commonly fed to horses as soybean meal. The two common types of soybean meal are differentiated based on their protein content (44 percent or 48 percent). The 48 percent protein soybean meal is prepared by removing the hulls, which makes a product relatively richer in protein content. The hulls contain mostly fiber and very little protein. Other types of protein supplements can be used in horse rations, but soybean meal is by far the most popular.

Additional Resources

  • Nutrients and Common Feed Sources for Horses
  • Grain Feeding for Horses

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Grains for Horses and Their Characteristics (15)

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Grains for Horses and Their Characteristics (2024)

FAQs

What grains are good for horses? ›

The most common are oats, corn, and barley. Milo (sorghum) and wheat are other grains that are fed to horses as well. Grains such as oats, barley, and corn can be fed whole, though many are typically processed to increase digestibility.

How do you choose grain for a horse? ›

When searching for the right feed, consider the age of your horse, what is physiological stage or use of the horse, are there any relevant medical issues, what is the current physical condition of the horse, and what type of forage do you have available.

What is the best grain for performance horses? ›

The main source of starch in a performance horse diet is cereal grain (oats, corn or barley).

What grains give horses energy? ›

Energy in the diet is provided by four components—starch, fat, fiber, and protein: Starch, a carbohydrate, is the primary component of cereal grains (oats, corn, and barley). Oats are about 50% starch, while corn and barley have more than 60% starch. Starch is the dietary energy source of choice for glycogen synthesis.

What is the best grain for horses in the winter? ›

For horses housed and fed outside in the more severe winter climates, it is strongly recommended that forages be offered in feeders located under a three-sided shelter. Horses kept outdoors will have higher energy requirements and the higher energy forages such as alfalfa or clover hay mixed with grass hay can be used.

What grains are high in protein for horses? ›

Therefore, the supplemental source of protein used in horse feeds should be high quality. Alfalfa, milk proteins, and soybean meal are all good sources of quality protein for growing horses. Protein supplements which are deficient in lysine include linseed meal, cottonseed meal, and peanut meal.

What is the best horse food for horses? ›

Horses are naturally grazers, they eat little and often. Their natural diet is mainly grass, which has high roughage content. Horses should be provided with a predominantly fibre-based diet, either grass, hay, haylage or a hay replacement in order to mimic their natural feeding pattern as closely as possible.

What is the best horse feed to feed a horse? ›

Roughage/Forage Roughage, found in hay or grass, is the bulk of the horse's food. Grass or alfalfa hay, or a combination of the two, are good sources of roughage. Grass hay is generally higher in fiber and dry matter than alfalfa, but alfalfa may be higher in protein, energy, vitamins and calcium.

Is all grain good for horses? ›

Diets high in grains can lead to digestive issues — to prevent stomach ulcers and colic, a horse's ration should be less than 25% grain.

How many times a day should a horse have grain? ›

If you feed your horse grain, give it in multiple smaller meals rather than one large one. Most horses are given grain twice a day for the convenience of their human caretakers. If for some reason you must give your horse a large quantity of grain, consider an additional lunchtime feeding.

What horse grain has the most fat? ›

The fat content in the diet can be increased by selecting feedstuffs in the concentrate part of the diet with a high fat content or by adding fats or oils. Feedstuffs high in fat include vegetable oils (100%), rice bran (15-18%), flax seeds (30-40%), and heat-treated soybeans (15-22%).

What horse feed is best for energy? ›

Starch. Starch is a carbohydrate found in cereal grains such as barley, maize and oats and provides a good source of fast release energy, particularly useful for horses working hard for short periods.

What grain has the highest energy? ›

Corn contains a greater energy density than other cereal grains and is usually the standard to which other cereal grains are compared.

What grains provide the most energy? ›

The calories in food come from carbohydrates, proteins, and fats:
  • A gram of carbohydrate has 4 calories.
  • A gram of protein has 4 calories.
  • A gram of fat has 9 calories — more than twice as much as the other two.

What grain makes horses hot? ›

Feed ingredients such as oats, corn, barley, alfalfa and molasses have been identified by horse owners as causing “hyper”, “fizzy” or “hot” horses. Grains contain starch and sugar that may result in large fluctuations in blood sugar and result in mood or behavior changes.

What is the best winter feed for older horses? ›

Hay is the best way to produce heat. The process of breaking down hay takes a long time and creates more heat over a longer period. Feeding as much hay as a horse will consume without waste is the best way to help keep him warm. Most horses will consume 2% of their body weight in hay a day.

How much grain should a horse have in winter? ›

Horses can also be less feed-efficient when temperatures drop below their comfort zone. In general, feeding an additional one-quarter pound of grain per 100 pounds of body weight daily to non-working horses can provide adequate calories during cold, windy and wet weather.

What is sweet grain for horses? ›

"Sweet feed is primarily composed of grains (usually oats, barley, or corn), a supplemental protein, minerals, and vitamins, with relatively high levels of molasses." The grain is whole or coarsely crushed and is plainly visible and discernible in the mix; the supplement is usually in pelleted form.

Which grain has the highest protein quality? ›

Whole-grain spelt is highly nutritious as it contains essential amino acids, vitamins and minerals. The USDA claims that spelt is an ancient grain with the highest protein level of any grain.

What grain has most fiber and protein? ›

Hulled barley, also known as pearl barley, is one of the highest fiber-containing high-protein grains; 1/4-cup serving provides 32% of your daily value of fiber, and while barley is not wheat, it does contain gluten.

What are 4 types of horse feed? ›

Types of Horse Feed
  • Sugar Beet Horse Feed.
  • Straight Horse Feeds.
  • Conditioning Horse Feed.
  • Balancer Horse Feed.

What is the highest protein horse feed? ›

High quality protein includes legumes, young grass pastures, soybean meal, canola meal, and linseed meal. Soybean meal is rated the highest quality due to the amino acid profile being superior to most other plant products. Moderate to low quality protein include cereal grains.

What is the best grain to feed horses with ulcers? ›

Include alfalfa in the feed for horses with ulcers. Research has shown that alfalfa is a better buffer to acidity than other fibre sources due to its protein and calcium content.

What is the best feed for older horses? ›

A typical ration for a 1000 lb horse might consist of free access to top quality hay, preferably a straight grass or grass/alfalfa mix or pasture, plus 2 to 8 lbs of a feed designed for old horses, plus free choice water and salt. Avoid straight alfalfa.

What is the most common horse feed? ›

Hay is the most popular and one of the least expensive forms of fiber. Hay may be processed as round bales, square bales, cubes, or pellets. There are three major types of hays: legumes, grasses, and cereal. The major legume hay fed to horses in the United States is alfalfa.

What do you feed weak horses? ›

Allowing 24/7 access to pasture or hay (or as much forage as possible). If increased amounts of hay aren't enough, try offering a higher quality hay such as alfalfa or an immature grass hay. Alfalfa tends to be higher in energy and protein and lower in sugar. Alfalfa can be fed as hay or as cubes/pellets.

Is rye grain good for horses? ›

Rye grain is similar in energy, fiber, and feeding value to corn, but is higher in protein. Rye can be fed to horses but should be mixed with other grain and not over one-third of the grain mix should be rye because of its low palatability. Rye should be closely inspected for ergot that is highly toxic to horses.

What grains can horses not eat? ›

Then remove all grain from the diet of the horse (no weaning is necessary – just stop all at once). This includes corn, oats, barley, wheat, wheat middlings, sugar beet pulp, rice and wheat bran, oat hulls, etc.

What happens when a horse gets too much grain? ›

Consumption of large quantities of high starch grain can have drastic consequences to a horse's intestinal health, causing digestive upset, abdominal pain (colic), and diarrhea. The most notable consequence of this occurrence is the development of laminitis (founder), which might only become evident days later.

How much grain should a 1000 pound horse eat a day? ›

For example, if you have a 1,000 pound horse who is in light work, a good diet might consist of 17 pounds of hay or hay cubes and 3 pounds of grain per day. The same 1,000 pound horse in a heavy work program may need 10 pounds of hay and 10 pounds of grain, since the grain is higher in energy.

Can horses go a day without grain? ›

Horses on high quality pasture for most of the day will not need extra grain. Good grass will provide most, if not all, the nutrients and calories they need. Horses evolved to be roughage eaters, so their bodies are naturally designed to subsist off of quality grasses.

How much grain should I feed my 1200 pound horse? ›

1200 lb horse, in light exercise. In this example, this horse would need to eat between 4.8 and 7.2 lbs per day of this feed to receive the nutrition he needs. Some horses that are easier keepers can fall to the lower end of the range, while harder keepers may need to push the upper limit.

What does apple cider vinegar do for horses? ›

Improve digestion and balance PH levels: Apple Cider Vinegar works to acidify the horse's stomach for better digestion, cleansing the digestic tract. It can also aid in the absorption of minerals and helps balance the acid/alkaline ratio which is important for good health.

What oil is best for old horses? ›

Linseed oil is the best option to use as it contains high levels of Omega 3, has good palatability, isn't too pricey and is suitable for a large range of horses and ponies.

What is the best vegetable oil to feed horses? ›

For boosting calories and keeping omega balance in check, canola or soybean oil would be a far better choice than corn oil,” explained Whitehouse. Fish oil has superior fatty acid content, with an omega-3 to omega-6 ratio of 6:1, but it is generally not fed to increase energy consumption.

What is the best grain for high energy horses? ›

Corn is one of the most energy-dense feeds and contains a high content of carbohydrate. Corn has a high energy content per unit of weight and a high weight per unit volume. Therefore, a given volume of corn contains approximately three times the amount of energy as an equal volume of oats.

What is the best feed for a lazy horse? ›

Fibre and oil provide slow release energy whereas sugars and starch provide quick release energy. For lazy horses where more sparkle is required, cereal grains are usually fed as they provide lots of starch and therefore quick release energy.

Should I feed grain to my horse? ›

Many pleasure and trail horses don't need grain: good-quality hay or pasture is sufficient. If hay isn't enough, grain can be added, but the bulk of a horse's calories should always come from roughage. Horses are meant to eat roughage, and their digestive system is designed to use the nutrition in grassy stalks.

What is the healthiest food for horses? ›

Their natural diet is mainly grass, which has high roughage content. Horses should be provided with a predominantly fibre-based diet, either grass, hay, haylage or a hay replacement in order to mimic their natural feeding pattern as closely as possible.

Are oats better than corn for horses? ›

Oat starch is more digestible in the small intestine than corn starch, and this feature makes oats the safer feed choice when large amounts of cereal grain must be fed. Oat starch reduces the risk of hindgut acidosis, which is caused by starch entering the hindgut and undergoing rapid fermentation.

What are 3 things horses should not eat? ›

Here are eight foods you should never feed your horse:
  • Chocolate. ©russellstreet/Flickr CC. ...
  • Persimmons. ...
  • Avocado. ...
  • Lawn clippings. ...
  • Pitted fruits. ...
  • Bread. ...
  • Potatoes and other nightshades. ...
  • Yogurt or other milk products.
Sep 26, 2017

What happens when horses eat too much grain? ›

Possible consequences of this grain overload are diarrhea, colic, colitis, endotoxemia, metabolic acidosis and laminitis (founder). There are several factors that will influence the progression of events after such an overeating incident.

What is the best grain for horses to gain weight? ›

Alfalfa is higher in calories and protein than grass hays, which makes it an excellent choice to help to add weight to a thin horse. If your horse tends to be wasteful with his hay, he may eat more when offered alfalfa hay cubes or pellets.

Do horses need grain in the winter? ›

Horses can also be less feed-efficient when temperatures drop below their comfort zone. In general, feeding an additional one-quarter pound of grain per 100 pounds of body weight daily to non-working horses can provide adequate calories during cold, windy and wet weather.

How much grain does a horse need daily? ›

Horses are able to consume about 1.5 to 2% of their body weight in dry feed (feed that is 90% dry matter) each day. As a rule of thumb, allow 1.5 to 2 kg of feed per 100 kg of the horse's body weight.

Do retired horses need grain? ›

Aged horses that are healthy with a BCS of 5 to 7 require 1.5-2.0% of their BW DM/day of good quality grass or legume mix hay. Typically, no grain is required but if desired or needed, choose one with restricted starch/sugar and contains added fat (4-7%).

What is the most important nutrient for horses? ›

Water is the MOST IMPORTANT nutrient; horses can't live long without it! Always make sure there is an adequate, clean supply of water. Horses generally drink about 2 quarts of water for every pound of hay they consume.

What are the 6 essential nutrients for horses? ›

When feeding horses, it is important to recognize that there are six basic nutrient categories that must be met: carbohydrate, protein, fat, vitamins, minerals and water. Often, feed companies will balance the first five nutrients for us; however, it is critical not to forget about water.

What food calms horses? ›

Fibrous feeds that are fermented in the hindgut to release energy are the most natural and also the 'coolest' sources of energy for horses. Using forages like pasture, hay, and chaff to provide the majority of the energy in your horse's diet will help to keep your horse calm and responsive.

What type of horse should not be fed oats? ›

Even though oats are the grain lowest in sugar and starch, at around 45 to 50% starch they are still far too high in starch for horses on a low sugar and starch diet, eg insulin resistant horses, horses prone to laminitis, those with disorders like Cushings or PSSM etc, as well as many horses who are prone to ulcers, ...

What are the disadvantages of feeding oats to horses? ›

Finally, oats do not have a good amino acid profile, which means they are not a sufficient source of protein for horses in hard work or breeding.”

Is sweet feed OK for horses? ›

A chief advantage of sweet feed (also known as textured feed) is its excellent palatability. Most horses accept it readily, so it is a good choice for equines that tend to back off other feeds.

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