Feedstuffs for Horses: All About Beet Pulp. Fifty years ago, many knowledgeable horsemen would find it difficult to identify beet pulp or its potential value as a feedstuff for horses. Though its usefulness is now cemented among horse owners, beet pulp can still cause some confusion. Kathleen Crandell, Ph.D., a nutritionist for Kentucky Equine Research, answers eight questions about beet pulp and its role in equine nutrition.
In what types of feeds was beet pulp first used?
Sugar beet pulp first found a use in commercial horse feeds in the racehorse products as a low-dust feedstuff. It was mixed with lots of molasses and felt moist. This proved beneficial for the respiratory tract and was thought to be somehow beneficial in preventing bleeding. However, this notion was quickly abandoned.
Beet pulp was also integrated into senior feeds because of the need for a high-fiber feedstuff that could be ground and incorporated into a pellet. The new generation of high-fiber, low-starch feeds that emerged in the late 1990s was an obvious end-use for such an excellent fiber source. Now, beet pulp is prevalent in feeds designed for all classes of horses.
What are the differences between beet pulp and cereal grains as energy sources?
Horses derive the majority of the energy (calories) in cereal grains from the enzymatic digestion of starch that is absorbed in the bloodstream in the form of glucose. On the other hand, horses derive the majority of the energy in beet pulp from the microbial fermentation of the fiber content. It is absorbed as volatile fatty acids, also known as short-chain fatty acids.
What are the advantages of feeding beet pulp as part of a diet?
Compared to other fiber sources like hay, beet pulp has much more digestible fiber. For example, the digestible fiber in hay is around 40%. Meanwhile beet pulp has closer to 80% digestible fiber. The more digestible the fiber, the more calories that feedstuff provides the horse.
Further, beet pulp mixes well into a textured feed and can be pelleted easily. Plus, soaking beet pulp is a way to get more water into the horse.
How does beet pulp stack up to hay as a source of fiber?
The type of fiber found in beet pulp, considered “rapidly fermentable fiber,” is much more readily fermented by the microbes in the hindgut than the fiber in hay or typical forage sources. Hay consists mostly of cellulose, hemicellulose, and lignin. Lignin is completely indigestible. On the other hand, cellulose and hemicellulose vary in digestibility depending on the maturity of the plant.
Beet pulp provides energy, but does it add appreciable amounts of other nutrients?
Beet pulp has higher amounts of calcium than grains, about the level found in typical commercial concentrates. In addition, beet pulp is comparatively high in iron.
Should beet pulp be fed soaked or unsoaked when fed by itself or as part of home-mixed concentrate?
If feeding beet pulp shreds, they can be fed dry, especially if mixed with other feedstuffs. Free-choice water availability is important if feeding dry beet pulp. Pelleted beet pulp, however, should not be fed dry because it may increase the likelihood of choke. Horses prefer to consume beet pulp shreds soaked rather than dry shreds, probably because it softens their texture. My preference is to feed beet pulp soaked.
Further, one of the advantages of feeding soaked beet pulp is that it is a way to sneak a bit of water into the diet. This is especially useful in the winter when water consumption may be down. The Europeans have come up with a method of micronizing and then flaking the pulp so that it soaks quickly, in less than 10 minutes.
Are there any special uses for beet pulp?
Soaked beet pulp is a useful vehicle for holding larger amounts of oil, which is often recommended as a way to get more calories in the horse.
It was thought for a while that soaked beet pulp could help to push sand out of the digestive tract, but research found it ineffective in prevention of sand colic.
Is beet pulp use in the U.S. different than in other areas of the world?
Beet pulp has worked its way into quite a number of commercial feeds in the U.S. Many horse owners feed soaked beet pulp in addition their regular feed.
As the history of beet pulp would suggest, its use is more longstanding in areas such as England, Northern Europe, and Russia, where much sugar beet is cultivated. Because of the climate needed for sugar beet cultivation, South America had very limited sugar beet production. Likewise, this is the case in Australia and Africa. However, cultivation is expanding to newer areas. A variety can be grown in the warmer climates as a winter crop, instead of a summer crop as it is in more temperate climates. Where beet pulp is not grown, it may be imported and therefore rather expensive.
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Article brought to you by KER.
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Letting Horses Do the Work: In addition to being ridden or driven for pleasure, many horses still work for a living. Some of these equines have jobs that do not immediately come to mind when considering horse-powered chores. A number of relatively ingenious methods have been created to convert the considerable strength of horses to augment human exertion.
Feed Management Should Mimic Nature: By understanding the horse’s instinctive feeding behavior, today’s feeding strategies can be shaped to mimic natural tendencies. Certain feeding behaviors in horses are triggered by physiological changes and signals. Hormones, nerve signals, and homeostatic mechanisms lead to feelings of hunger. That hunger urges the horse to move around and look for something to eat. In a natural setting, the horse would wander about, lower its head, and graze while smelling and tasting various forages.
Restricting Forage Intake in Stubbornly Obese Horses: A medley of contributing factors can lead to obesity in horses. For example, overfeeding, sedentary lifestyle, genetics, and hormonal imbalances. Management of obesity involves evaluating every component of the diet and removing superfluous calories.
Feeding Horses Before Exercise: What to Feed and When? Three experiments were conducted to evaluate if feeding hay with and without grain affects glycemic response and hematological responses in Thoroughbred horses at rest and during a simulated competition exercise test on a high-speed treadmill. The first experiment evaluated how feeding forage along with grain influences plasma variables and water intake. The second experiment was conducted to determine whether these changes affect exercise performance. The third experiment was conducted to determine how forage alone affects exercise response.
Considerations When Moving Horses to a Different Climate: Do you travel a lot? Then you know that you need to pack shorts for a Florida vacation. Mayne throw in an extra jacket for a winter visit to those New England cousins? Of course, stock up on antacid before you spend a few weeks with your great-aunt, an enthusiastic chef in Europe. In today’s equestrian world horses routinely move south for the winter training months. They fly to Germany for a dressage lesson. O Or possible, shuttle to the opposite hemisphere for a second breeding season. Therefore, owners need to think about ways to minimize stress. Here are tips to help equines make a smooth transition to another climate, a modified diet, and a different exercise routine.
Long-Stem vs. Short-Stem Forages: Nutritionists recommend horses consume at least one to two pounds (0.5 to 1 kilograms) of long-stem forage each day. Long-stem forage is best defined as hay or pasture. This recommendation respects the natural desire of horses to graze. After all, they are hardwired to spend more than half of their day eating. Forage products that include extremely short pieces of fiber such as cubes, pellets, or chaff are often fed in lieu of long-stem forage. A spate of inquiries regarding the necessity of long-stem forage has landed in the electronic mailboxes of Kentucky Equine Research nutritionists. The overwhelming inquiry:
Dealing with Horses That Don’t Like What You’re Serving: Virtually all horses love to eat fresh green grass. Aside from that, each equine has its own dietary preferences. These vary from the chubby pony (happily gobbles anything and everything that’s offered) to the discerning older Thoroughbred mare who sniffs the expensive new nutritional supplement, turns away, and looks at you with a disdainful “this isn’t exactly what I had in mind” expression.
Cushing’s Disease in Horses and Importance of Diet: Pituitary pars intermedia dysfunction (PPID, equine Cushing’s disease) is an age-related endocrine disorder that occurs in about 20% of horses, ponies, and donkeys 15 years of age or older. PPID can occur in younger horses, but it is rare in those younger than 10 years of age. At this time, age is the only significant risk factor for PPID; no breed or sex predispositions have been determined.