Omega-3 Fatty Acids Benefit Foaling Mares Before Rebreeding: When compared to cows, ewes, and sows, mares experience a short interval between birth and their next heat cycle. After foaling, the uterus undergoes involution. Involution is a process that reduces uterine size, repairs uterine tissues, and restores the uterine environment to a nonpregnant state. Supporting uterine involution is critical. The 11-month gestation of the mare often makes it difficult to maintain every-year foaling. Commercial breeders prefer every-year foaling. In a recent study, researchers set out to determine the effects of feeding docosahexaenoic acid (DHA), an omega-3 fatty acid, on uterine involution in the weeks after foaling.

The Study:

Haynet Height: Consider Comfort of Horses. Horsemanship masters and mavens of yesteryear taught their students to hang haynets high and tight. Low-slung haynets invited injury, the experts cautioned.

A resurgence in the use of haynets has occurred recently. Most frequently, as an attempt to slow hay consumption among horses on calorie-restricted diets. A high-tied haynet, however, encourages horses to crane their necks and contort their backs over a long period of time.

Habitual, unnatural postures can cause discomfort, even unsoundness. As a result, Italian researchers set out to determine the physical effects of haynet height on neck and back shape.^*

Research:

“Horses and ponies seem to be quite specific in how they approach eating from a haynet,” said Catherine Whitehouse, M.S., a nutritionist with Kentucky Equine Research. “Some nibble from them, grasping pieces of hay carefully; some go in for large mouthfuls, aggressively yanking out hay. Others will headbutt the bag, leaving it swinging from its knot.”

Whatever their interaction with the haynet, Whitehouse said, changes in body position invariably occur and likely become a matter of routine.

In the study, researchers used geometric morphometrics to evaluate variations in neck and back shape relative to three specific hay-feeding positions.

Geometric morphometrics allows scientists to identify and analyze minute postural changes through the use of anatomical landmarks. Specifically, geometric morphometrics eliminates differences based on size and instead focuses on changes in shape of individuals. Hay was fed from three positions:

• Control position. The hay was fed from the ground.
• Low haynet position. The bottom of the haynet was level with the midpoint of the cannon bone.
• High haynet position. The bottom of the haynet was level with the elbow.

Researchers used slow-feed haynets made from high-density polyethylene twine. The haynet openings measured about 1.5 in (4 cm).  4.5 lb (2 kg) of the usual hay horses ate filled the haynets.

There were video recordings of six mature Warmbloods. Meanwhile, they ate hay from the three different feeding positions. While eating hay at each feeding position, horses were recorded for 15 minutes.. For example, using a cellphone placed on a tripod. Most importantly, this assured a consistent perspective.

Benefits:

Researchers found that feeding positions affected the shape of the neck and back postures during hay consumption.

Firstly, for individual horses, these changes in shape were well defined. With the low haynet position, the back posture more closely resembled that exhibited during the control position, indicating a more natural feeding position. However, the same was not true of neck posture. Both neck and back postures changed. Most considerably, hay offered in the high position. As a result, potentially leading to problems.

“Certain haynets and feeding devices designed to encourage slow consumption have refined the level of management that can be achieved when dealing with challenging horses. For example, the chronically overweight,” said Whitehouse.

“Even though the researchers identified some changes to neck and back shape, the long-term physical effects of feeding from haynets have not been studied. Right now, the benefits seem to outweigh the potential disadvantages.”

Horses on calorie-restricted diets require optimal nutrition, and this scenario calls for a well-formulated vitamin and mineral supplement, according to Whitehouse. “Because these horses are generally fed all-forage diets, they usually miss out on the vitamin and mineral fortification provided in concentrates. Therefore, an appropriate vitamin and mineral supplement can fill in the nutritional gaps left by forage.”

Safety First:

Most importantly, for safety’s sake: in the study described above, haynets were hung low under the watchful eye of professional scientists. In an everyday situation, whether it’s in a trailer or stall, haynets should be hung at a height safe for the individual horse. Lastly, the likelihood of a horse pawing and getting its hoof caught in the haynet decreases.

In conclusion, do you have a specific question about your horse’s health or hay diets? Contact J & J Hay Farms today at 770-887-0440!

Article Source: Kentucky Equine Research

^*Raspa, F., A. Roggero, C. Palestrini, M.M. Canavesio, D. Bergero, and E. Valle. 2021. Studying the shape variations of the back, the neck, and the mandibular angle of horses depending on specific feeding postures using geometric morphometrics. Animals 11:763:11030763.

How to Let Your Horse Down in the Off-Season: The final show of the year is over. You drive back to the barn, unload your horse, and hang up your championship ribbon. Now you’re planning to give your horse a well-earned rest.

You know he’ll enjoy a few months out of his stall. Likely rolling in the grass and taking afternoon naps with his pasture buddies. You realize that you’ll be modifying just about everything in your horse’s day-to-day routine. How can you keep your horse healthy as he makes this change? Follow these steps for a smooth transition.

Moving from stall to pasture:

Make the switch to pasture gradually. Do this especially if your horse has been kept in the barn all or most of the time while you were actively training and showing. Start with half an hour of grazing two or three times a day. Make sure to provide plenty of hay when the horse is in the stall. Increase pasture time in half-hour increments for several days. Add an hour or two to each grazing session until the horse is able to be out all the time.

Because of the way the horse’s digestive system works, any horse relocated abruptly from stall to full pasture is at high risk for colic or laminitis. At any time during the shift, if the hooves feel warm to the touch, or the horse shows signs of pain or reluctance to move, put the horse in the stall and contact your veterinarian immediately.

Some horses are so sensitive to the sugars in grass that they can never have unlimited access to pasture. These equines can still benefit from a few months of full or partial turnout if they are muzzled or placed in a drylot with an adequate supply of hay.

Feeding:

To stay in show condition and perform the work he has been asked to do, your horse has probably been given top-quality hay and one or more feedings of concentrate (pellets or sweet feed) daily. Without the demands of training, he will require the same basic nutrients but will need much less energy. Ideally you can take a week or two to taper his schedule. Slowly decrease both his work and his grain ration.

Gradually switching to a balancer pellet or a vitamin and mineral supplement will supply essential nutrients without the calories found in a concentrated feed. Kentucky Equine Research has developed several vitamin and mineral supplements, including Micro-Max, available in the U.S., and Gold Pellet, Nutrequin, or Perform in Australia. Continue to give your horse whatever dietary supplements he is accustomed to, such as hoof and joint products, but check ingredients to avoid over supplementation when feeding more than one product.

You should still provide hay whenever the horse spends time in the stall. Something to munch on will alleviate boredom, keep gastric ulcers at bay, and prevent gorging on grass at the next turn-out. Free-choice access to water and salt is essential at all times.

Pasture safety:

Before turning your horse out the first time, take a quick tour of the fenceline and field to check for debris, holes, loose boards or wire, and insecure gate latches. Correct any problems before using the field. Bell boots and galloping boots can help guard against injury as the horse gets used to his freedom.

Fly spray will give a few hours of relief from insects; consider using mesh fly sheets, face masks, and leg covers for longer-lasting comfort. Changing seasons may eliminate insect problems, but horses with white faces may need sun protection year-round. Sunscreen or fly masks with muzzle extensions can prevent painful sunburn.

Hoof care:

Many people feel it is advantageous for horses to go barefoot if they are going to be inactive for several months. Will your horse benefit from having his shoes pulled? Consider these things as you make this decision.

Horses that are newly barefoot will probably be somewhat tender for a week or so until the soles begin to toughen. If possible, turn out in a field with grass or dirt rather than a rocky area. Pasture the horse with amiable companions to avoid forcing him to run or kick to defend himself.
Hoof shape will change without the support of a shoe. Probable changes include spreading of the heel, flaring in the quarters, and chipping at the toe and sides of the hoof. These changes are normal, and unless they are excessive, are nothing to worry about.

Whether the horse is shod or barefoot, basic hoof care should not change when the horse is out of work. Hooves should be inspected and picked at least daily, and the schedule of farrier visits should be maintained. Toes tend to grow faster than quarters and heels. As a result, going more than about six weeks between trimmings can change the angle of the pastern, leading to unnecessary strain on the tendons and ligaments in the lower leg.

Horses that have therapeutic shoeing for navicular syndrome, laminitis, or other hoof problems may need to remain shod. Discuss with your farrier whether to leave the idle horse shod, to remove only the rear shoes, or to pull all the shoes until the horse returns to work.
Maintain horses on a high-quality hoof supplement, if necessary, such as Bio-Bloom PS (Bio-Bloom HF in Australia).

Other management:

Even though he is not working, your horse still needs daily attention. A light grooming gives you a chance to find and treat injuries or skin conditions like dew poisoning or rain rot. Face masks and grazing muzzles should be removed at least once a day to check for rubbed areas. A regular schedule of deworming, vaccinations, and dental care should be followed just as though the horse were still in training.

A period of leisure is restful to many equines. However, certain classes of horses probably are not good candidates for more than a brief time off work. Young horses just beginning their training may forget most of what they have learned if there is a prolonged lapse in regular work, and older horses sometimes lose so much condition that it is practically impossible to return them to previous levels of fitness. If these animals need a break, consider reducing their workload for a few weeks rather than giving them a long vacation.

With minimal attention, your horse can stay healthy and will benefit from a few months off work. He’ll probably come back into training with a fresh attitude. Above all, ready to rack up more ribbons after a relaxing break from his demanding performance schedule.

In conclusion, J & J Hay can help to answer horse-health and hay related questions.

Article Source: Kentucky Equine Research

Why is Feeding Frequency Important in Horse Management? According to historical accounts, when horses were used daily for transportation, work, and war, their caretakers would feed their charges no fewer than four times a day.

To maintain reliable performance day in and day out, caretakers knew that horses must eat frequently to sustain energy levels. Modern sport horses have entirely different demands placed on them. The work is not only less strenuous, but horses spend much less time actually engaging in the activity.

Feeding frequency affects various physiological parameters, particularly gastric and intestinal function, as well as behavior. But are these changes important to the health and welfare of the horse?

Forage Fraction

When it comes to the forage fraction of the diet, there is no question that horses should have forage available for as many hours as possible in a day. Allow access to adequate pasture. In addition, feeding hay several times throughout the day, or by offering hay free choice. Horses are offered free-choice hay. They will consume more than those offered limited amounts.  As horses consume more hay, they drink more water, so clean water should always be available when hay is offered.

Horses eat hay and concentrates at different speeds. Research has shown that it takes up to four times longer to consume the same weight of forage as it does concentrates.

In pasture situations, horses usually graze 12 to 20 hours a day. Fresh grass has an abundance of moisture (70-89% water). Therefore, more fresh forage must be eaten to achieve the same amount of dry matter intake as hay, which has much less moisture (10-15% water).

Stalled horses spend six to eight hours consuming hay when fed concentrate at more than 20% of the diet. When fed free-choice hay without concentrate, horses spent 12 to 16 hours eating hay. Specially designed feeders that slow intake of hay are useful for extending the hours that horses in stalls or drylots spend eating hay, mimicking approximately the time spent grazing. These feeders are especially useful for horses with low energy requirements like easy keepers.

Hay Availability

Is hay availability more important during the day or night? In a study on eating behavior conducted at the  University of Kentucky, horses spent more than 25% of daylight hours eating hay. Less than 15% of their nighttime hours were spent sleeping (more than 50%) between 12 a.m. and 7 a.m.

In the same study, the researchers found that frequency of feeding affected the amount of hay the horses ate.  When horses were fed eight concentrate meals per day with free-choice hay. They consumed more hay than when only fed two concentrate meals per day. If you need your horse to consume more forage, feed the concentrate in smaller, more frequent meals.

Concentrate Meals

When feeding concentrates, increasing the frequency and decreasing the quantity per meal have beneficial effects. One advantage stems from the moderation of the glycemic response to a meal, the consequences of which are currently a much-discussed topic.  Researchers at The Ohio State University fed the same quantity of a concentrate in one, two, or three meals over a 24-hour period.

Marked effects on the glycemic response to the feeding schedule were noted. The single meal produced a much higher glycemic response and consequential insulin release than the others. Interestingly enough, researchers also found that horses had a higher glycemic response to a meal in the morning. Even if horses were fed multiple meals throughout the day.  Therefore, in horses where glycemic response needs to be controlled, the smallest meal of the day should be in the morning.

The same researchers found an influence on glycemic response from the order in which the hay and grain were fed.  When hay was fed 15 minutes before the concentrate, the horses fed once per day had higher glycemic responses than when fed the concentrate 15 minutes before the hay.  This same consequence was not seen when the horses were fed two or three times per day.  Also, when concentrate was fed before the hay, horses engaged in wood-chewing more frequently.

Stereotypic Behaviors

Concentrate feeding correlated with cribbing and stereotypic behaviors.  Researchers at Auburn University have studied cribbing extensively.  They found time spent cribbing decreased with free-choice feeding of concentrate. Feed dividend into hourly meals actually increased over that of horses fed two meals a day.

Stereotypic behaviors like wood-chewing and cribbing are thought to be responses to boredom. They can also indicate of inflammation or abnormal acidity in the stomach.  Chronic cribbers have lower gastric pH than their noncribbing peers.

Antacids have a positive effect on reducing the amount of cribbing. Concentrates induce cribbing, so with cribbers it may be beneficial if fewer meals are offered in a day.  While providing adequate long-stem forage reduces occurrence, it may not eliminate the problem completely.

Number of Meals in a Day

Aside from the problems associated with elevated glycemic response, another problem with large concentrate meals centers around gastrointestinal capacity. Large meals can overwhelm the digestive capability of the small intestine. The result of which is too much grain in the hindgut to be fermented by the microbial population.

In general, when the total quantity of the concentrate is greater than 1 lb (0.5 kg) concentrate per 220 lb (100 kg) body weight (equivalent to 0.5% body weight), the concentrate should be divided into more than one meal.

Processing techniques have evolved over the last few decades that have improved digestibility of grains. Because of this, the maximum amount of concentrate recommended per feeding is more likely to be 0.65 lb (0.3 kg) per 100 kg body weight for feeds with 30-40% starch.

Meal size recommendations would be even lower for concentrates with starch contents higher than 40% or straight grains. Feeding meals with starch amounts greater than 1.1 g/kg body weight have been associated with an increased risk for the development of gastric ulcers.

Development of gastric ulcers is perhaps the worst consequence of infrequent feedings in a day.  Gastric pH as low as 2 were found for horses without access to feed for 12 hours. While the development of gastric lesions were imminent.

A drop in gastric pH often happens after feeding grain or concentrate meals. However, in a study comparing two meals per day with feeding every 90 minutes, there were no statistical differences in the pH drop from feeding.  In contrast, horses on 24-hour pasture access or fed free-choice hay were found to have more normal gastric pH of 4 to 6. As a result, once again, highlighting the advantages of constant access to forage.

Increased Feeding Frequency

Increased feeding frequency is crucial in horses with certain diseases like hyperkalemic periodic paralysis (HYPP or HPP).  Horses diagnosed with HYPP are unable to handle excessive amounts of potassium; so the smaller the meal, the less potassium absorbed at one time.

In addition to offering feed and forages with low levels of potassium, if the horse receives multiple, small meals it helps to keep from overwhelming the body at one time with potassium. This allows better controlling symptoms of the disorder.

Finding the right feeding frequency to control physiological, digestive, and behavioral issues depends on the amount of feed required to maintain the horse in good body condition.  Constant access to forage, whether it is hay or pasture, is integral to a well-rounded feeding program.  Limiting concentrate meal size controls spikes in glycemic response and avoids overpowering digestive capacities. Taken behavioral issues into consideration.

Frequent smaller meals recommended. More calories necessitate higher concentrate intake. Especially if a high starch feed is used.  Perhaps not every modern-day horse needs four meals a day like their hard-working predecessors. However, careful consideration of the factors that determine the need for more frequent meals will go a long way in optimizing the horse’s diet.

In conclusion, J & J Hay can help to answer horse-health and hay related questions.

Article Source: Kentucky Equine Research

Monitor Autumn Grazing to Prevent Laminitis in Horses: Horses are at increased risk for laminitis when grass begins to grow in the spring, providing abundant forage that is high in moisture and carbohydrates but low in fiber. Autumn is also a high-risk time for grazing horses for a somewhat different reason.

Pasture growth doesn’t look menacing to metabolic-challenged horses, with its browning color signaling the beginning of dormancy. However, this seasonal change triggers plants to produce and store carbohydrates. Waning daylight hours, cool night temperatures, overgrazing, mowing, or several dry days followed by rainfall. These examples can all lead to increased carbohydrate intake as horses graze. This overabundance of nonstructural carbohydrate (NSC) disrupts the chemistry of the horse’s digestive tract. Consequently leading to the release of endotoxins that can result in the onset of laminitis.

A second contributing factor is the rise in adrenocorticotropic hormone, or ACTH. This occurs in all horses as days get shorter and air temperatures drop. This natural change in hormone level may not be a problem for horses with normal metabolism. However, for those with a condition like Cushing’s disease or equine metabolic syndrome, higher ACTH levels can trigger increased insulin production. This rise translates into more risk for laminitis in susceptible equines.

Steps for Maintaining Health Throughout Fall Months

Kathleen Crandell, Ph.D., senior equine nutritionist at Kentucky Equine Research, suggests several steps to keep horses healthy throughout the fall months.

She recommends that horse owners should eliminate or limit fall grazing for insulin-resistant horses or those that have shown signs of laminitis in previous years. Offer low-NSC hay to provide fiber, soaking the hay if necessary to remove some of the water-soluble sugars. Has the grass reached full dormancy and the lower stems are no longer green? It’s probably safe to allow horses back into the pasture. At least until forage growth picks up in the spring.

Additionally, use a buffer such as EquiShure. It primes the hindgut for changes in diet that could lower the pH of the cecum and colon. By stabilizing the pH of the hindgut, there is a decrease in the risk of hindgut acidosis and associated disorders such as colic and laminitis.

J & J Hay can help to answer horse-health and hay related questions.

Source: Kentucky Equine Research

Stereotypic behaviors such as weaving, cribbing, and stall-walking occur commonly in high-performance horses as well as many companion horses. In addition to being unsightly, potentially damaging to the barn, and raising welfare concerns, stereotypic behaviors also result in important health issues. For example, dental disorders, temporohyoid joint damage, poor performance, weight loss, and colic.

Cribbing:

“Cribbing is the most troublesome of these compulsive behaviors. It involves grasping a fixed object with the incisor teeth. In addition to aspirating air with an audible grunt.” Kathleen Crandell, Ph.D., a nutritionist for Kentucky Equine Research explained.

The exact reason horses crib remains unknown. Some suggest that cribbing horses have unmet dietary or management needs. Others believe that altered biological functions are the culprits, such as decreased antioxidant levels or increased oxidative stress.

Trace elements such as selenium, zinc, manganese, and copper protect the body from oxidative stress. One research group* recently explored the hypothesis that oxidation status may contribute to cribbing. Researchers collected blood samples from horses during or immediately after an episode of cribbing. As well as when cribbers were resting to test this theory. Control horses with no known history of cribbing were also tested. The scientists then analyzed the samples for various markers of oxidation.

“The most important finding in this study was that serum selenium concentration was significantly lower in cribbing horses than in controls. The lowest levels measured while horses were actually cribbing,” Crandell said.

Based on these data, the researchers concluded “that alterations in serum selenium, an important component of the antioxidant system, may play a role in the pathophysiology of cribbing behavior in horses. Adding further evidence to the theory that cribbing may be related to increased oxidative stress and alterations in essential trace elements.”

“Management also plays an important part in minimizing stereotypic behaviors. Strategies such as providing environmental enrichment tools, offering free-choice hay or prolonged grazing, and allowing direct visual contact or prolonged turnout time in groups are thought to improve the welfare of affected horses,” Crandell mentioned.

J & J Hay can help to answer horse-health and hay related questions.

Source: Kentucky Equine Research

Preserving Horse Health in the Face of Low-Quality Forage: Horse owners often don’t have control over the hay given to their horses. Because of this, they regularly offer a concentrate or ration balancer. This provides the requisite nutrients low or missing in the forage. However, well-formulated products can fill this dietary void. Yet, researchers wondered if additional fortification would increase digestion and bolster muscle accretion over the topline.

In the 56-day study, stock-type horses were offered a base diet of low-quality hay. They supplemented with first a pelleted concentrate balanced to National Research Council requirements. Second, the same pellet that had been fortified with additional amino acids. In addition, chelated trace minerals, and fermentation metabolite additives. (Which are prebiotics that support the fermentative flora of the hindgut.)

“The goal of offering concentrates was to provide a layer of nutritional protection to maintain or improve the health and performance of mature horses in the face of poor-quality hay,” Kathleen Crandell, Ph.D., a Kentucky Equine Research nutritionist advised.

The Study:

At the end of the two-month study, all horses had similar estimates of body fat. Regardless of the concentrate offered to them. The primary difference between the diets involved greater muscle development along the topline of those horses fed supplemental amino acids.

“These results suggest that horses may benefit from extra amino acid. (The building blocks of protein.) To compensate for lack of quality protein in the nutrient-poor hay,” Crandell summarized.

Kentucky Equine Research works with a global network of feed manufacturers dedicated to producing high-quality feeds. These manufacturers offer a full range of fully fortified concentrate feeds to meet the needs of horses and ponies during any stage of life.

“A ration balancer contains protein, macrominerals, microminerals, and vitamins, an ideal combination for balancing out the protein and other nutrients that may be missing in a lower quality hay without adding a lot of calories,” Crandell said.

Ration balancers can be fed as the sole concentrate for horses that have no problem maintaining weight on a forage-only diet. Combine with a straight grain (such as oats) as well. In addition to a fortified concentrate fed below the recommended rate.

“Offer ration balancers at a rate of 1-2 lb (0.45-0.9 kg) per day. It’s a much higher volume than only 1-4 oz (25-110 g) per day of a regular vitamin and mineral supplement. A true ration balancer will contain protein. Which is required if horses only have access to protein-deficient, low-quality forage,” explained Crandell.

When Evaluating Hay:

When evaluating hay, do not confuse low-quality hay with moldy or extremely dusty hay. Never offer them to horses. Low-quality hay will have negligible protein. As well as high indigestible fiber, and marginal vitamin content, yet still be clean and free of weeds, excessive dust, and other undesirable material. Poor-quality hay, on the other hand, as these same attributes. They can also be contaminated with mold or mycotoxins.

J & J Hay can help to answer horse-health and hay related questions.

Source: Kentucky Equine Research

Forage for Endurance Horses: Forage is perhaps the single most important ingredient in an endurance horse’s diet. It a major source of energy and essential nutrients. It is also the presence of fiber in the digestive tract provides bulk to keep the tract functioning properly, keeps blood flowing to the tract even during exercise, stimulates thirst, and holds water and electrolytes in a reservoir.

Without the marvelous milieu of innumerable microbes populating the cecum and colon of the horse, forage would be indigestible. These microbes are not only responsible for breaking down the fiber in the forage but the end products of their fiber digestion are VFAs. They are sources of energy for the horse.

Energy:

The reason why the endurance horse is able to keep going for hours upon end has to do with the ability of these microbes to keep making VFAs. They’re absorbed. Next, it’s distributed either to the liver (for conversion to glucose) or directly to the muscle cells to be used for aerobic energy formation. This, combined with the breaking down of glycogen stores in the muscle cells and the triglycerides from muscle and adipose tissue, makes for steady energy generation in the endurance horse.

This type of energy generation is efficient for aerobic metabolism. It is not sufficient to fuel a horse that is going at high speeds in an anaerobic state for very long. Adequate forage intake and a healthy microbial population are essential for proper fiber digestion. As well as fuel production, and the successful performance of the endurance horse.

Most of the endurance horses in the United States have the advantage of 24-hour turnout on pasture. Even when forage is sparse, it has several advantages for the horse. First, free-choice access to nibble all day long is healthiest for horses. It is what their digestive tracts were designed to do. Greatly reducing the risk of nutritional disorders like colic and ulcers.

Second, the ability to move about freely is better for the joints. Particularly if horses are starting to get arthritic, and for the muscle tissue, reducing risk of muscle cramping or tying-up.

Third, grazing with the head down to the ground, milling around looking for tasty morsels, is relaxing to a horse. It’stherapeutic and soothing. Green grass is more nutritious than hay because some nutrients are lost during the drying and storing of hay. Fresh grass is higher in the fat-soluble vitamins like vitamin A (as carotenes) and vitamin E; has more sugars and digestible fiber; and because of its high water content, aids in keeping the horse hydrated.

Grass Quality:

Most of the pastures in the United States produce quality grass. It is more difficult in tropical countries where the grasses contain antifactors that jeopardize quality (such as oxalates, bitter taste, mycotoxins, etc.). For those horses, getting fresh grass may mean it comes in the form of green chop fed to them in a stall or small paddock.

In temperate regions of Australia, much of the pasture base contains tropical species. Including kikuyu, which can contain high levels of oxalates. Impacting on calcium absorption in the horse and often a supplement is required to avoid a deficiency of calcium in the diet. Alfalfa (lucerne) is a great source of calcium. Often used to counteract the effects of high oxalate pastures in these areas.

In many parts of the world, keeping an endurance horse out on pasture is not an option. In those cases, forage will primarily be in the form of hay. For others, hay may be fed in addition to the pasture, especially in dry or winter seasons. There have been lengthy discussions on the right type of hay to feed an endurance horse, but what it all boils down to is getting the best hay that is accessible. This will vary between regions and from country to country. In general, daily use of legume hays like alfalfa (lucerne), clover, peanut, and pea is less desirable than grass hays. Because of their high protein and calcium content.

Grass Types:

However, legume hays are very desirable. Especially on the day of the race for the same reasons as well as for their palatability. In the United States, grass hay seems to be the hay most commonly fed to endurance horses. A small percentage of riders feed some alfalfa. Feeding only legume hay to an endurance horse increases the risk of having metabolic problems. For example, thumps during a race because of the effect of chronic high calcium intake on parathyroid hormone mobilization. Feeding alfalfa, especially in California, increases the risk of developing enteroliths, stones that form in the intestinal tract.

Some endurance riders have no choice of what to feed because of the lack of availability of grass forages. They live with the risk. Many riders in traditionally alfalfa areas are paying significantly higher prices than those in grass-growing regions just to be able to get grass hay for their horses. Feeding mostly grass hay with some legume is still a very reasonable diet for an endurance horse. Especially if the horse has no access to pasture. By feeding less legume hay, owners remove the risk of high-calcium complications because the total amount of calcium ends up significantly less.

Common Practices:

A common practice around the world is to include some type of chaff in the horse’s daily diet. Chaff is forage. Usually, cut into fine (1-3 cm) pieces.  Made from alfalfa, grass hay, or straw. Chaff commonly has a bit of molasses and/or oil sprayed on it to increase palatability and decrease dustiness. Chaff can also be fed at vet checks as an easy-to-chew source of fiber.

It is common to mix the concentrate meal with some type of chaff. This serves two purposes: to get more fiber into the horse and to slow down the intake of the meal, which in turn will moderate the glycemic response. When chaff is not available, hay pellets (alfalfa or grass) serve the same purpose. Mixing with the grain or concentrate can improve intake. As well as slow grain consumption, and reduce the risk of choking on the hay pellets. Hay pellets can be fed whole. Also, softened in water and mixed with beet pulp or wheat bran.

The feed industry has contributed a couple of food byproducts that have become fibrous staples in the endurance horse’s diet. The most common of these are beet pulp and soy hulls. Sometimes called “super fibers.” They are higher in digestible fiber than hay and can supply a significant amount of calories by microbial fermentation. Soaked beet pulp is commonly fed alone or mixed with the concentrate portion of the diet. Beet pulp is also used in commercial horse feeds. In order to increase the fiber content. Soy hulls are usually found in high-fiber commercial horse feeds. They’re rarely used as a standalone ingredient in the diet.

Super fibers are very useful in getting more fiber into the diet when hay and/or grass is not adequate or giving the digestive tract a different type of fiber that may be broken down at a different speed than forage fibers. A combination of fiber types is important in developing a healthy microbial population that can contribute significantly to consistent energy generation.

J & J Hay can help to answer more hay related questions.

Article source: Kentucky Equine Research