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Nutrition Hay
Are alfalfa hay and cubes safe for horses? I recently read that sometimes alfalfa hay will cause hair loss in light colored horses. Finding hay is getting harder and more expensive. Someone mentioned that people are feeding alfalfa cubes when hay is short. I would love to but I'm not sure it is safe for my horse, a 13 year old Paint. If you have any advice on the matter I would love to hear it!
I checked with our other nutritionist on faculty, Dr. Sarah Ralston, and we both agree that there is absolutely no evidence for this claim. Alfalfa hay or cubes are safe as long as they are introduced slowly and the horse has normal kidney function. The cubes can be used as a forage substitute but should be fed in multiple feedings to reduce boredom and wood chewing.
For a 13 year old Paint I would recommend Timothy/Alfalfa mix cubes because the straight alfalfa might be a little too high in nutrients and energy for his needs. I would not feed them free choice, as most horses will tend to overeat and gain weight. Also if your horse has problems chewing them, add just enough water to soak the cubes through to help soften and break them up a bit. Otherwise hay cubes are a great hay substitute!
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
Can an alfalfa allergy cause shortness of breath?
My horse is a fat 4-year-old paint gelding. He had laminitis last year after spending 24 hours in an alfalfa paddock. He had a funny episode when he was being ridden by my daughter: he suddenly had problems breathing; he stopped and had his head hanging down; he appeared out of breath. My daughter had to get off and unsaddle him. It passed and she re-saddled him, got back on, and walked him back; he has been fine since. He is not in heavy work and is stabled at night. I have been told that the shortness of breath is a symptom of being allergic to alfalfa. Is this true?
Alfalfa can cause laminitis if the horse is not accustomed to eating it and is given sudden, prolonged access to it. Fat horses are especially sensitive to sudden "overloads" like that. It was not clear from your question as to when the horse had the "breathing" problem relative to his alfalfa exposure and laminitis. I hope she was not riding him while he was in the acute phase of the laminitis - the pain associated with that could cause him to stop and hyperventilate. I am not aware of alfalfa allergies causing an acute episode such as you described. Horses can become "allergic" to dusts and molds that are common in alfalfa hays that can trigger asthma-like attacks in horses (known as chronic obstructive respiratory disease [COPD] or "heaves") but it really does not sound as if that would be the case with your gelding. I'd suggest having your veterinarian examine the horse to make sure he does not have COPD. If he does, it usually can be fairly easily managed by avoiding exposure to the allergens that trigger it.
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
How do the nutrients in barley hay compare to those in alfalfa?
I have a question regarding the nutritional value of Lucerne (alfalfa) and barley hay. My horse is housed in a paddock and receives a flake of hay in the morning as a supplemental feed to grazing on grass in the paddock during the day. Currently my horse is being fed one barley hay flake in the morning. Previous to this it was fed Lucerne (alfalfa) hay. When I asked about the suspected lower nutritional value of barley hay, I was told that the two are comparable. Some research on the web points to the fact that Lucerne (alfalfa) has twice the protein levels compared to barley. Do you have any information that compares the nutritional value of Lucerne (alfalfa) and barley hay?
Compared to barley, alfalfa is definitely the superior hay in terms of nutritional content for a couple of reasons. Its protein level is the main reason; alfalfa usually has an average of about 20% protein whereas barley hay, if sun-cured, only has about 8 - 9%. The energy content of barley hay is slightly lower as well. However, fiber content of the two hays is similar. This is usually the case for most hays, but will vary depending on how mature the hay was when cut (which is also the case for protein levels. The more mature they hay is when cut, the more fiber and less protein it has, and vice versa). Minerals to be concerned about are calcium and phosphorus. They are needed in a ratio of 1:1 to 2:1. Barley hay has low levels overall in a ratio of close to 1:1. However, alfalfa has much higher levels of calcium in a ratio of around 6:1.
As a general recommendation, if a horse is a harder keeper or needs a bit of a supplement, alfalfa would be the better choice. If barley hay is being fed alone with no grass or cereal grain supplement, a vitamin and mineral multi-supplement may be a wise choice to add to the diet.
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
What kind of hay is good for a laminitis-prone horse?
For horses with a history of laminitis, what particular type of grass hay would be best for their long-term maintenance diet?
If a horse has a history of chronic laminitis my first concern would be to address the metabolic issues contributing to the problem. Usually, these are obesity and/or pituitary dysfunction, both of which are treatable. If the horse is truly insulin resistant or glucose intolerant, there is no one type of grass hay guaranteed not to trigger a bout of laminitis. It depends more on the harvest conditions, not the species of grass, as to whether a batch of hay contains sufficient non-structural carbohydrate (NSC) to cause a problem. NSCs include starches, water-soluble sugars and fructans. Most horses tolerate over 20% NSC without adverse effects, and most grass hays, especially from the eastern states; contain only 7-18% NSC, with an average of 12%. Even legume hays, on average, contain less than 15% NSC. Oat hay, on the other hand, averages 22% NSC. (Values are based on 5 years of data from Equi-Analytical laboratories).
Grasses accumulate NSC throughout the day, with highest concentrations achieved late in the day if the sun is shining. If temperatures are above freezing and adequate water is present, NSC is converted to cellulose and other structural carbohydrates overnight, resulting in very low sugar concentrations by daybreak. If this process is disrupted by drought or freezing temperatures overnight, NSC concentrations can increase significantly. The grasses continue to "respire" after cutting until the hay is baled and "cured". The longer the hay is dried in the field, the lower the NSC will be. Also, sugars and fructans are water soluble - if the hay is rained on, or soaked in water, the overall NSC will also be reduced. "Warm season" grasses such as coastal Bermuda and crabgrass tend to accumulate lesser amounts of sugars than the "cool season" grasses like fescue, orchard grass and timothy under adverse conditions, but some accumulation will still occur if the conditions are right. Be aware that most horses are not adversely affected by this variability; either in pasture grasses or hays.
If a horse really is sensitive to NSC content, the "safest" hay would be coastal Bermuda or timothy cut early in the day after a warm night and recent rainfall, and dried in the field for at least a day or two - even rained on a bit! (I.e. hay from the first or second cutting, depending on the year, from the eastern states). Western hay producers tend to cut their hay later in the day to prevent excessive drying, and also can get it baled more quickly than is possible in the humid east - all of which tends to preserve the NSC present.
Answer provided by Dr. Sarah Ralston, VMD, Ph.D., dACVN, Rutgers Cooperative Extension.
Does the nutrient value of hay decrease over
time?
If hay is cut, dried, baled, and stored properly, does it lose its nutritional content over time (a few months, a year, two years, three years)? By “stored properly,” I mean in an enclosed structure that keeps off the sun and rain but is not climate controlled. Does the answer change depending on whether the hay is made from alfalfa, timothy, orchard grass, or rye? Does the answer change if we consider round bales or square bales?
I will try to answer your question as accurately as possible; however, it really depends on a number of things. First, yes: hay does lose its nutrient content over time, especially vitamins! Vitamins are one of the most unstable components in hay, so even if it is stored properly over the course of months to years you will lose some vitamin and mineral content. Most of the other nutrients are more stable, so the protein, fat and carbohydrates should be maintained. If hay is left in the sun, the vitamin content will go to zero in a matter of weeks. The longer hay is sun-cured/sufficiently dried, the lower its vitamin content will be even if freshly baled.
I have not seen any research done as to whether hay’s vitamin and mineral content changes with round or square bales, however, I assume it would be similar. The only concern here is if the round bales aren’t cared for they can mold much more rapidly.
The amount of nutrients in the hay will vary between different types of hay, not necessarily due to storing methods. So if you are storing alfalfa and timothy hay the same way, I really don’t think one would lose nutrients faster than the other. However, alfalfa has the highest nutrient content, especially in terms of vitamins -- so after a year of storage, alfalfa would still have a higher level of nutrients compared to grass hay, even if both are stored the same way.
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
Is it okay to feed horses round bales?
Is it okay to feed horses round bales?
While feeding horses round bales is not ideal, as long as the horses are vaccinated against botulism and the bales are under cover where they will not mold as quickly it should be okay. The main concerns when feeding round bales are mold and botulism. The amount of “pecking order” behavior and fighting you may see will depend on how the bales are placed and how many horses will be eating from each round bale.
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
How much hay should be fed to stalled horses?
I board horses. I average 1 horse for every 2 acres of pasture, and I practice rotational grazing. During winter months, I provide round bales of mixed grass hay in the pasture. The horses are out for approximately 50% of the day (12 hours in pasture/12 hours in stall). They are all healthy and carry a good weight.
I feed between 6 and 10 pounds of hay when they are stalled. I hear from some boarders that I do not feed enough hay. The reason, I am told, is that horses need to be eating constantly. I would like to know if horses need more hay than what I provide, or if they need any hay at all when stalled, and why.
It is best for horses to have free choice access to hay, particularly when they are in stalls. This can prevent vices which occur due to boredom. Horse stomachs, unlike those of humans, constantly produce acid. This can contribute to gastric ulcers if the acid is not buffered by the constant intake of forage.
It sounds like you are feeding more hay than most places I see. A 1000-lb horse should eat about 20 lbs daily, or 2% of their body weight. By providing the round bale outside, the horses have free choice for ½ of the day, and feeding 10 lbs inside gives them approximately the other 50% of their daily intake.
That said, I would monitor each horse for their leftover or wasted hay in the morning. If some horses are cleaning up every last morsel of hay, I would consider feeding them another pound or two. However, if others are leaving some scraps behind, they are getting an adequate amount and feeding them more would be wasteful.
Also, look at the body condition of these horses. Some overweight horses can consume up to 3 to 3.5% of their body weight, and if doing so they need to have their food intake restricted. However, some hard-to-keep horses will not eat all the hay they should, so finding other sources of hay that they will consume might be necessary. Feeds such as alfalfa cubes or beet pulp might help in this case.
The bottom line is to check your horses. It sounds like some of them might be getting enough hay, but others might not.
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
Do timothy hay and beet pulp meet nutritional
requirements?
Is timothy hay alone enough to meet a horse’s nutritional requirements? Also, is beet pulp a good nutritional supplement?
It depends on the quality of the hay and the horse. An “easy keeper” adult horse with light to no exercise should be able to do just fine on free choice good quality grass hay, water and a salt block. If the hay was over mature at harvest (you will see lots of seed heads in the bale of hay if so), has been sitting around for a long period of time, or has a lot of weeds, a "complete" vitamin/mineral supplement might be in order. Soaked beet pulp is one suggestion for a "carrier" for the supplement, since horses often will not eat supplements alone. Beet pulp has moderate calcium and phosphorus in a good ratio, good fiber content, some protein and some calories, but minimal vitamins and trace minerals.
Answer provided by Dr. Sarah Ralston, VMD, Ph.D., dACVN, Rutgers Cooperative Extension.
I would like to know if feeding horses common vetch for hay is safe. I know some of the varieties are poisonous but this one is not. I believe this is a mixture of Kentucky Blue Grass and timothy hay. I feed round bales so I have free choice of hay in the winter months only. During the summer, my horses are on pasture.
There is very limited information on feeding Vetch to horses. There have been some trials wherein it was fed to donkeys with good results. It seems to be used commonly in Australia and Mexico. It is a high protein legume and indeed it should be fed in limited amounts to reduce risk of obesity. I could not find a complete nutrient analysis (ie: calcium and phosphorus content) for it. Most of the studies I could find used a mix of common vetch and oat hay, which would probably be comparable to your bluegrass/timothy mix. The grass/oat hays would dilute the protein and energy content somewhat so that free choice feeding would not be as great a concern.
I strongly suggest that you get a complete nutrient analysis run on your bales, especially if you are feeding broodmares and foals. Your local extension agent should have a hay corer for taking representative samples. Go to http://www.equi-analytical.com/ for details on sampling and submission of forages for analysis.
That being said, I usually do not recommend feeding round bales to horses unless the bales are in a covered area and in feeders kept off the ground. There is a significantly increased risk of botulism otherwise. I recommend that you vaccinate your horses against botulism if you are using round bales. Also, make sure the bales do not become moldy if left outside too long. It is best if you can go through the round bales quickly without letting them sit for weeks at a time.
Answer provided by Dr. Sarah Ralston, VMD, Ph.D., dACVN, Rutgers Cooperative Extension.
Is wheat hay okay to feed to horses?
Because of the recent drought and resulting hay shortage, some people are feeding wheat hay to their horses. They say their horses love it, but it looks like straw to me. What's the nutritional story on wheat hay?
Out west, cereal grain hays are commonly fed to horses. These include oat and wheat hay (beardless wheat is more common for horses). They are perfectly fine hays, but it might take a little while for your horses to get used to them. Start your horses off gradually, over the course of 3 weeks or so, and they might not reject it too much. I teach a 3-day nutrition course in California and have done some consults where all folks feed is beardless wheat. Horses do well on it, and like it.
I think the biggest thing you will have to contend with is getting your horses completely switched over. They should be able to consume as much wheat hay as they would grass hay. The nutrient content is similar: the average protein content is 10 %. Wheat is fairly low in calcium though; be careful if you are feeding it to lactating mares or growing foals. They might need additional legume hay or a mineral supplement. The sugar and energy content of wheat hay is low to moderate, so that should not be a concern. Wheat hay is fairly high in fiber, which will keep horses from chewing fences, etc.
Answer provided by Carey Williams, Ph.D., Rutgers Cooperative Extension.
The material provided on this site is for educational purposes only and is not intended to diagnose, prevent, or treat any illness. Any recommendations are not intended to replace the advice of your veterinarian. Any products mentioned are not intended to diagnose, treat, cure, or prevent disease. Mention or display of a trademark, proprietary product, or firm in text or figures does not constitute an endorsement by the Equine Science Center or Rutgers University and does not imply approval to the exclusion of other suitable products or firms. |
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