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The pictures show our snazzy booth and great crew that made the week fun and productive.
I received several requests this week for help with horses suffering from gastric ulcers. Unfortunately, performance horses are especially prone to developing ulcers because of the way they are fed and managed. Even exercise itself can contribute to ulcer formation. We know from previous research that horses maintained on full-time pasture have almost no incidence of gastric ulcers. If a horse has been diagnosed with ulcers, they must be treated with medication such as ranitidine or omeprazole in order to allow the gastric mucosa to heal. There are also several feeding and management practices that can help prevent ulcers from returning or occurring in the first place. Below is an excerpt from an email I sent to a horse owner looking for help with a horse suffering from ulcers.
For a horse with gastric ulcers, one of the best things you can do is to allow constant access to forage. Not only does this keep some quantity of feed in the stomach at all times, but also the act of chewing produces saliva which can buffer the stomach contents. Allowing 24/7 access to pasture is the optimal scenario, but if this is not possible, then the use of hay nets that slow down the rate of intake to more closely mimic natural grazing behavior can help. One such hay net that I like and recommend is the “Nibble Net”. The type of forage is also important, and including alfalfa hay in the ration has been shown to decrease ulcer incidence. Some horses can tolerate 100% alfalfa hay with no problem while others may do better with a 50:50 grass/alfalfa mix. I would recommend slowly replacing some of the timothy hay with alfalfa. Depending on how he tolerates the alfalfa (maintains normal fecal consistency, no undesirable changes in attitude under saddle), you may even replace all of the timothy and consider replacing some of the chopped forage with alfalfa. This would increase the amount of “chew time” he has, as horses usually consume chopped forages fairly quickly. I do not expect him to have trouble with alfalfa hay, as long as it is introduced slowly.
For the concentrate portion of the diet, a high fat/high fiber feed is recommended. We have had very good luck with Purina Ultium in ulcer-prone horses, especially those which are in regular work. Ultium is also very calorie dense and will help with weight gain. The fiber level in Ultium is actually higher than most Senior feeds, and because this horse can also consume some forage, a senior feed is not necessarily required.
I would NOT recommend that this horse receive oral paste electrolyte preparations, as these can exacerbate ulcers.
Minimizing stress in the horse’s environment is also something that should not be overlooked; this may include increasing turnout time, insuring the horse is not isolated from other horses, and/or preventing “overtraining” (strenuous exercise on a regular basis without adequate rest periods).
As far as dietary supplements go, most of them are untested and unproven in the horse to improve gastric ulcers.
Following some of these suggestions can really make a positive difference for those horses that suffer from ulcers.
Last week, I traveled to the Mid-Atlantic Nutrition Conference in Timonium, MD. It was great to see a lot of my colleagues in the horse nutrition world and they had a wonderful line-up of speakers.
The joke of the day was that many talks seemingly revolved around trying to "kill" horses! The topics were as follows:
Laminitis- presented by Dr. Teresa Burns from The Ohio State University Vet School
Ionophore Toxicity in Horses- by Dr. Ken Marcella
Mycotoxins in Horses - by Dr. Lon Whitlow from North Carolina State University
Fescue Toxicity in Horses- by Dr. Rhonda Hoffman of Middle Tennessee State University
Toxic Plants- by Dr. Anthony Knight- Colorado State University
Young Horse Nutrition and Overfeeding- by Dr. Josie Coverdale from Texas A&M
Nutrient Management Update- by Ann Swinker from Penn State University
So, as you can see, a lot of discussion about what is bad for horses, complications of feeding horses wrong or bad things and what to do about it. The most fascinating talk for me was the Toxic Plants talk by Dr. Anthony Knight. We also ate lunch together and it was great to be able to ask him questions about poisonous plants and which ones pose more of a risk than others. His take home message was two-fold: 1) Dose Matters! There can be a big difference in a horse eating a little bit of a toxic plant versus a whole pasture full of something poisonous 2) Water hemlock is THE MOST POISONOUS plant to horses. It only takes 6-8 oz of the root to kill a 1000 lb horse. Scary.... I had read Dr. Knight's books on poisonous plants, but it was wonderful to see his talk in person and get a refresher course. We specifically chatted about creeping indigo, as it is native to south Florida and I've seen my horse grab mouthfuls of this toxic plant at horse shows before I could steer him away. Good to know this is one of the lesser toxic legumes and my horse isn't about to go into convulsions!
If I were to give you one take-home message from each of the other talks, it would be this:
1) Laminitis- Remains devastating to the horse community, but cryotherapy (ice therapy) is very helpful in the acute stages for decreasing the inflammatory response. Its not always easy to implement, but get those hooves on ice as soon as possible and keep it up as your vet recommends.
2) Ionophore toxicity in horses- make sure your feed is manufactured in an ionophore free manufacturing system/plant such as our Feed Guard Model follows. To us at Purina, it is not worth the risk to our horses to make feed in a plant that has ionophores. Also, don't feed cattle feed to horses, as this is a common way horses get poisoned with ionophores.
3) Mycotoxins- again, you need to be informed on what you are feeding your horses and make sure the feed ingredients are tested for mycotoxins. Mycotoxins are naturally occurring molds that can be tested for. Every load of corn that goes into a Purina plant is tested for mycotoxins- if its not clean, it gets rejected. Again, Feed Guard helps to protect your horse from mycotoxin exposure.
4) Fescue Toxicity- this is not a new topic to horse owners, but important as a reminder all the same. Broodmares should not be maintained on endophyte positive fescue pasture, and if its unavoidable, the dopamine inhibitor Domperidone given during the last 20 days of gestation can help. If possible, only use endophyte free fescue in horse pastures.
5) Young Horse Nutrition/Overfeeding- rapid growth does not appear to increase the risk of OCD; it is the overall plane of nutrition and other factors of genetics and management that play contributory roles. Resist the temptation to rapidly decrease nutrient planes on young horses with OCD problems- they still require a BALANCED ration for growth.
6) Equine nutrient management- For those of you in the mid-atlantic states of MD, PA, NJ, etc. the regulations on manure management for large and small farms are in place and need to be learned about. Best management practices (BMPs) to minimize nutrient and sediment will need to be employed and it can be confusing figuring out where your farm fits in and what you need to do. Work closely with your ag-extension agent in your area for help.
Overall, it was a very educational day and good to spend time with colleagues and friends. If you would like more information and/or a copy of the proceedings from this conference, please visit: http://www.manc.umd.edu/ Have a great day!!