Poisoning & Toxicity

Article

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

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

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

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

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

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

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

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

Amazing Minerals

October 04, 2001

Of all the ingredients of a horse's diet, minerals are unique. They contain no carbon, which makes them inorganic molecules. In fact, essentially, they’re rocks--and it can be difficult to imagine their being digested by a horse. But minerals are a... Read More

Article

Soil and Water Testing

October 02, 2001

As you push your shopping cart down the aisle at the supermarket, it's likely become routine for you to do a quick scan of the nutritional analysis printed on the side of every cereal box and container of yogurt you select. Instantly, you know how... Read More

Article

What's in Your Feed? (Contamination)

September 01, 2001

"Yuck!" you hear your friend exclaim from the feed room as you move down the barn aisle one evening, doling out flakes of hay.

"What is it?" you call over your shoulder.

"There are huge lumps of molasses in this bag of feed!" she... Read More

Article

Syndrome Survey Nearly Completed; Hemlock Poisoning Not Ruled Out

June 03, 2001

Researchers at the University of Kentucky looking into the cause of mare reproductive loss syndrome are in the process of completing a comprehensive survey involving more than 150 farms. The... Read More

Article

Latest Twist in Foal Loss Syndrome: Mycotoxins Out, Cyanide In

May 25, 2001

No longer does the mysterious Mare Reproductive Loss Syndrome appear to be the result of incredibly high mycotoxin levels in pasture grasses; now the most likely cause appears to be cyanide brought onto pastures from wild black cherry trees, carrie... Read More

Article

May 23 Update: Additional Evidence Ruling Out Mycotoxins

May 25, 2001

The University of Kentucky College of Agriculture on May 23 posted the following information on its web site at http://www.uky.edu/Agriculture/VetScience/mrls/briefings.htm... Read More

Article

Mother Nature's Toxic Spill: An Analysis of Mare Reproductive Loss Syndrome

May 24, 2001

A good mystery has many clues, some more obvious than others, and some more misleading. Researchers are scientific detectives, trying to piece together observations and facts that lead to a conclusion. But, while some cases are concluded with all... Read More

Article

Southern States' Triple Crown Feeds Contain Mycotoxin Binders

May 24, 2001

Southern States has included the patented mycotoxin binder MTB100 in its line of Triple Crown horse feeds since February of 2000, according to Bill Vandergrift, PhD, owner of Equivision nutrition company and a consulting nutritionist... Read More

Article

Where to Find the Mycotoxin Binder

May 24, 2001

Lexington, Ky., feed companies are busy filling orders for bags and buckets of mycotoxin binder from horse owners in 15 states throughout the East Coast.

Feeding the binder, which is an additive derived from yeast, has been recommended by... Read More

Article

Forage Testing Points to Molds and Mycotoxins

May 18, 2001

There is increasing evidence indicating that molds and mycotoxins are involved in the syndromes in Kentucky, Ohio, Pennsylvania, and West Virginia this spring. There have been some positive screens for the mycotoxin zearalenone in pasture and... Read More