Recent News for Nutrition-Related Problems

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Folic Acid Supplementation

November 01, 2003

Sulphadiazine and pyrimethamine are used in combination to treat equine protozoal myeloencephalitis (EPM). These drugs interfere with folic acid (folate) metabolism, a vitamin essential for survival of the causative protozoon Sarcocystis... Read More

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Twelve Belgians Dead from Bad Feed

November 01, 2003

Feed contaminated with a cattle weight gain medication (monensin) killed 12 Belgians in Wisconsin and sickened several others, said a Wisconsin Ag Connection report. The horses, owned by Wayne Huston of Cottage Grove, were treated at the... Read More

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Problems for Horse Owners Caused by This Summer's Wet Weather

October 14, 2003

From Penn State University's Dairy & Animal Science News

The wet weather this summer has not only increased the price of quality hay, but creates the right conditions for increased mold, fungi and mycotoxins in hay and... Read More

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Blister Beetle Poisoning in Florida

September 01, 2003

At press time, three horses had died of blister beetle poisoning in Clay County, Fla., and two others returned home following treatment at the University of Florida after eating alfalfa hay contaminated with blister beetles. The hay was delivere... Read More

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Blister Beetles Kill Horses

August 05, 2003

Three horses recently died of blister beetle poisoning in Clay County, Fla., and two have returned after treatment at the University of Florida following ingestion of alfalfa hay contaminated with blister beetles. The hay was delivered from a... Read More

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The Mycotoxin Problem

June 25, 2003

There can be a number of reasons why a horse might have performance problems. A diagnosis can be frustrating, but one reason that might be overlooked is mycotoxicosis. It wasn’t until recently that the significance of mycotoxins was realized,... Read More

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Dietary Clues to Tying-Up

June 20, 2003

Recurrent exertional rhabdomyolysis (RER, a type of tying-up) is an inherited disorder in Thoroughbreds. Research suggests that RER involves an abnormality in the regulation of calcium in muscle cells. High-grain diets have been implicated as... Read More

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Alltech Symposium Serves International Audience

June 03, 2003

Attended by delegates from more than 60 countries, Alltech’s International Feed Industry Symposium provided an abundance of information for those involved with horses, poultry, pigs, dairy and beef cattle, agronomy, aquaculture, and companion... Read More

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Obesity is Dangerous, Warns UK Researcher

May 07, 2003

Laminitis specialist Robert Eustace, BVSc, Cert EO, Cert. EP, MRCVS, director of The Laminitis Clinic in Wiltshire, England, wants horse obesity to be declared a welfare concern. In a campaign launched at the annual meeting of the International... Read More

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Pasture Management and MRLS

April 07, 2003

In the spring of 2001, hundreds of mares in Central Kentucky lost their pregnancies in peculiar abortions attributed to mare reproductive loss syndrome (MRLS). Since then, horse farm managers have gone back to square one in reviewing their... Read More

Article

Speed Limit

March 05, 2003

The racing Thoroughbred is trapped between a rock and a hard place. The rock is speed, which evolved slowly by natural selection for 50 million years, then rapidly by human hand the last 500. The hard place is where we find our ward today, beset... Read More

Article

When Your Horse's Muscles Ache

March 01, 2003

Equine muscle injuries are often elusive, leading to frustration for the rider and a challenging diagnosis. ... Read More

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Diagnosis and Treatment of Rhabdomyolysis in Foals

February 13, 2003

We hear a lot about a horse experiencing rhabdomyolysis (tying-up) during or after exercise. However, foals are also susceptible to muscle damage. Stephanie Valberg, DVM, PhD, of the University of Minnesota, presented "A Review of the Diagnosis... Read More

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AAEP 2002: Recent Developments in Equine Nutrition

February 04, 2003

A lot has happened in the field of equine research in the last five years. Ginger Rich, PhD, of Rich Equine Nutritional Consulting in Eads, Tenn.; and Leslie Breuer, PhD, of LH Breuer and Associates, updated veterinarians and others who attended... Read More

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AAEP 2002: Possible Environmental Sources of Drug Positives

January 07, 2003

As post-performance drug testing methods become more sensitive, racehorse and show horse owners, veterinarians, handlers, and trainers have become more aware that positive drug tests could be the result of inadvertent contamination of the horse... Read More

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Guinea Grass Toxicity

November 01, 2002

I have a 12-year-old gelding that can't eat guinea grass (Panicum maximum), not even for three days, because it causes the hair around his face, neck, and belly to fall out in patches. As soon as he stops eating it, his hair grows back withi... Read More

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Cardiovascular Changes With Moldy Corn Poisoning

October 01, 2002

Fumonisins are toxic byproducts of the fungus Fusarium verticilloides, which often grows on corn. These mycotoxins can cause leukoencephalomalacia (moldy corn poisoning) in horses, and are undetectable to the naked eye. Horses exposed to... Read More

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Malicious Mycotoxins

August 01, 2002

Leave your saddle sitting in a corner of your tack room after you and your horse are caught in a rainstorm, and you'll get an eye-opening look into the world of fungi and molds. Within days, your leather tack will have sprouted a patchy coat of... Read More

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Locked Into Place

August 01, 2002

Much has been learned about exertional rhabdomyolysis (tying-up) in recent years, but unfortunately some of that knowledge has been troubling. For example, at least one newly recognized cause of tying-up in foals has, in identified cases, always... Read More

Article

Skunk Cabbage Toxic to Horses?

August 01, 2002

Recently our horses have begun eating skunk cabbage that grows on the property. They have not done so before. They have plenty of grass plus hay and grain, all of which they also eat. One veterinarian says it is harmful to them; another says... Read More

Article

Polysaccharide Storage Myopathy and Back Pain

August 01, 2002

As many as 40% of all cases of equine back pain are the result of soft tissue injury. The primary causes include chronic and recurrent exertional rhabdomyolysis (CER and RER, respectively), and an inherited enzyme deficiency called polysaccharid... Read More

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Poison Control: Spraying Insecticides on Pastures

August 01, 2002

During the optimal Eastern tent caterpillar (ETC) eradication period (when larvae are still in trees), Lee Townsend, PhD, extension entomologist at the University of Kentucky (UK), recommended a list of insecticides for horse owners and farm... Read More

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Tying-Up in Horses

July 01, 2002

Tying-up is the most common muscle problem in horses. This syndrome is also called azoturia, set fast, paralytic myoglobinuria, and chronic exertional rhabdomyolysis (ER). HYPP (hyperkalemic periodic paralysis) in Quarter Horses is a different... Read More

Article

Copper Sulfate and Ergot

June 21, 2002

Making sure that copper requirements are met in the overall diet of horses is prudent. However, there is no real need to test soils for copper, and certainly no evidence that fertilizing with copper sulfate will minimize the occurrence of the ergot... Read More

Article

Poison Control: Spraying Pastures with Insecticides

June 19, 2002

No definite cause of mare reproductive loss syndrome (MRLS) has been identified, but a recent discovery that Eastern tent caterpillars (ETC) can cause early fetal losses (and likely contributed to MRLS) has scientists at the University of... Read More