Recent News for Nutrition-Related Problems

Article

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

Article

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

Article

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

Article

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

Article

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

Article

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

Article

FDA Orders Recall of Mercury-Containing Drug

June 03, 2002

The government has ordered a nationwide recall of a horse drug sold over the Internet called Miracle Leg Paint, because it contains mercury that is poisonous both to horses and to people, according to an Associated Press report. 

Horse... Read More

Article

Bute Toxicity in Neonates

May 01, 2002

Q: My wife and I were told that giving Bute (phenylbutazone) to a mare in foal can cause heart defects in the foal, similar to aspirin taken by women in early pregnancy. Is there any connection? A: Signs of phenylbutazone toxicity in foals whose...... Read More

Article

Mycotoxin Binders Not Labeled Legally

April 12, 2002

The Food and Drug Administration (FDA) says the claims made by some feed products that they contain mycotoxin binders is illegal. In Kentucky last year, many feeds and supplements were touted as having mycotoxin binders in the face of mare... Read More

Article

Mesquite Tree Beans Toxic?

April 01, 2002

My horse recently had a horrible colic episode due to mesquite tree beans. Every summer these trees produce large bean pods, which evidently taste like candy to horses. According to my vet, they also slow down gut motility--hence the colic. ... Read More

Article

Which Trees are Toxic?

April 01, 2002

It's hard to imagine that a natural part of our environment could possibly be harmful to our horses. However, many plants are not only poisonous, but potentially deadly to horses. Many plants and trees have strong medicinal qualities; early... Read More

Article

Water Contamination

December 01, 2001

Any treatise you've ever read on caring for horses probably includes the line, "Provide access to plenty of fresh, clean water." Although we all understand that this is good advice--all living things need this simple, essential liquid--we don't... Read More

Article

Non-Toxic Linseed

November 01, 2001

Horse owners wanting to take advantage of flaxseed's omega-3 content can rest easy. Flaxseed, or linseed, has a reputation as a toxic substance to horses when fed uncooked--earned because the seeds contain a small amount of cyanogenetic... Read More

Article

When Your Horse Thinks He's a Termite...

November 01, 2001

Q: Is chewing pressure-treated wood (the green-tinged wood) dangerous for horses?

Catherine

Q: Our horses have started eating our fences and tree bark quite frequently this year.... Read More

Article

How Does Your Horse Score?

November 01, 2001

Keeping a close eye on your horse's body condition and weight is perhaps the best way to gauge the effectiveness of a feeding program. We all want our horses to be in tip-top shape, well-muscled, and neither too fat nor too thin. The problem?... Read More

Article

New MRLS Theory Suggested

October 12, 2001

The examination of mycotoxins, wild cherry trees, molds, cyanide, odd climatic conditions, and unusually heavy caterpillar infestation has led to one more possible theory to how mare reproductive loss syndrome was triggered this... Read More

Article

Exertional Rhabdomyolysis

October 10, 2001

Tying-up is a problem that has troubled horses and their owners for many years, and it has been known by many names. The old-timers who battled the syndrome in their draft horses following a Sunday away from the fields called it Monday morning... Read More

Article

HYPP: Hyperkalemic Periodic Paralysis

October 10, 2001

They gave the muscular Quarter Horse colt an ambitious name: Impressive. He lived up to the name in such dramatic fashion that it became a household word in Quarter Horse circles - especially among breeders and exhibitors involved in showing... Read More

Article

Fescue Toxicosis

October 09, 2001

Mares grazing on tall fescue pastures infected with a toxin have increased gestation lengths, mare and foal deaths, agalactia (absent milk secretion after birth), retained placentas, premature separation of the placenta at birth, and... Read More

Article

Studies on Vitamin E

October 09, 2001

Researchers at Oregon State University and elsewhere are continuing to examine the role of vitamin E in horse health, including disease prevention and therapy. In particular, vitamin E deficiencies and/or supplementation could be important... Read More

Article

Medical Messengers--British Equine Veterinary Association

October 08, 2001

The annual meeting of the British Equine Veterinary Association provided a wealth of information on topics ranging from tendons and ligaments to muscle diseases, from disorders of the back to conformation. Sue Dyson, MA, VetMB, PhD, DEO, FRCVS,... Read More