Poisoning & Toxicity

Article

Poisonous Hemlock: A Growing Problem

June 13, 2009

The association of poison hemlock with the death of Socrates in ancient Greece in 399 B.C. provides a glimpse of the toxic history of this plant. Two decades ago an aggressive search was required before a specimen could be found in Arkansas, but no... Read More

Article

TheHorse.com en Español: La Muerte de Caballos Poleros Emprende una Investigación

May 14, 2009

This is one of a series of articles translated as part of our partnership with A Caballo, an equine publication based in Mexico, and Jorge Murga, DVM. Kee... Read More

Article

University of Florida Vet Faculty Work to Solve Polo Pony Mystery

May 05, 2009

Postmortem testing conducted by University of Florida College of Veterinary Medicine pathologists and toxicologists on a group of prized polo horses that collapsed and died April 19 in Wellington, Fla., drew international attention, with riveted... Read More

Article

Pharmacy Releases Statement on Polo Pony Test Results

April 29, 2009

The pharmacy involved in the investigation into the recent death of 21 polo ponies in Wellington, Fla., has released a statement verifying that selenium was the excess ingredient in the medication prepared for the ponies.

Florida State... Read More

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State Vet: Selenium Overdose Likely Cause of Polo Pony Deaths

April 28, 2009

Florida State Veterinarian Thomas J. Holt, DVM, reported today that an overdose of selenium was the probable cause of death of the 21 polo horses that collapsed prior to a... Read More

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Polo Ponies: Pharmacy Says it Erred in Medication Prep

April 23, 2009

An official at a Florida pharmacy said Thursday the business incorrectly prepared a supplement given to 21 polo horses that died over the weekend while preparing to play in a championship match.

Jennifer Beckett of Franck's Pharmacy in Ocala,... Read More

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Pharmacy Releases Statement on Polo Pony Deaths

April 23, 2009

Franck's Pharmacy Chief Operations Officer Jennifer Beckett released the following statement April 23:

"On an order from a veterinarian, Franck's Pharmacy prepared medication that was used to treat the 21 horses on the Lechuza Polo... Read More

Article

No Clues from Preliminary Results of Pony Necropsies

April 22, 2009

Very preliminary results of necropsies done on horses that collapsed and died at a Palm Beach polo tournament on Sunday have not identified a diagnosis, said Florida Agricultur... Read More

Article

Florida Agriculture Officials Investigate Polo Pony Deaths

April 21, 2009

Florida Agriculture and Consumer Services Commissioner Charles Bronson has launched an investigation into the deaths of 21 horses that collapsed after arriving in Wellington,... Read More

Article

Lechuza Polo Team Releases Statement on Pony Deaths

April 21, 2009

The Lechuza Polo Team released the following statement April 20:

"This is tragic news. We are deeply concerned about the death of our ponies. For the last three decades, Lechuza Polo has participated in Polo Championships and... Read More

Article

Vet: Tests on Polo Ponies Could Take Weeks

April 21, 2009

It could be weeks before the results of toxicology tests on the 21 polo ponies that died in Wellington, Fla., on Sunday just prior to competing at the U.S. Open Championship ar... Read More

Article

Vets Investigate Wellington Polo Pony Deaths

April 20, 2009

The sudden death of 21 polo horses in Florida may have been caused by a toxin that has yet to be identified by tests and could have been in the animals' feed, vitamins, or supplements, veterinarians said Monday.

The horses from the... Read More

Article

Polo Association Releases Statement on Pony Deaths

April 20, 2009

The United States Polo Association has released the following statement:

"The United States Polo Association is participating in an investigation to determine the cause of death of over 20 polo ponies that died prior to a polo matc... Read More

Article

Michigan Extension Offers New Toxic Plant Bulletins

April 15, 2009

Horse owners do what they can to make sure their charges get healthy feed. But how do they know that the plants growing in their pastures are safe for equine consumption, and how do they grow good forage? Find out which plants can threaten horse... Read More

Article

Toxin Test Might Identify Horses with Diarrhea that Could be Debilitating

April 14, 2009

Early identification of a toxin produced by the diarrhea-causing bacterium Clostridium difficile, in the feces of horses with diarrhea might help identify which horses are at risk for developing serious disease, report... Read More

Article

Aluminum Phosphide Poisoning

March 06, 2009

Aluminum phosphide is an indoor fumigant used to kill insects in most, if not all, of the stored grains we and our horses are exposed to. Like most pesticides, it can cause major problems in unintended species when used incorrectly.... Read More

Article

Ivermectin Toxicosis

February 27, 2009

Ivermectin has become one of the most widely used deworming medications worldwide since its introduction 25 years ago. It's usually considered to have a large margin of safety, but it can be highly toxic in rare circumstances... Read More

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AAEP 2007 Convention Complete Coverage

February 12, 2009

A complete wrap-up of the 2007 American Association of Equine Practitioners Convention held in Orlando, Fla.... Read More

Article

Fifth North Carolina Horse Dies of Unknown Toxin

January 05, 2009

A mystery toxin killed a fifth horse in western North Carolina in November. Veterinarians now suspect this case might be due to the same substance that caused the death of four other horses earlier that month.

The fifth horse was... Read More

Article

Stable Air Quality a Breath of Fresh ... Endotoxin?

December 06, 2008

If you think you are pampering and protecting your horse in his cushy, comfortable stall instead of turning him out on pasture, think again. Michigan State University researchers have found that stabled horses are exposed to eight... Read More

Article

North Carolina Horse Toxicity Investigation Continues

November 17, 2008

Veterinarians are still searching for what caused the deaths of four horses in Fairview, N.C., earlier this month.

An analysis of the animals' feed failed to reveal the presenc... Read More

Article

Beyond the Feed Tag: Horse Feed Ingredients, Quality and Safety Issues

November 16, 2008

The tag on every animal feed product is labeled with information required by the FDA, with ingredients listed in descending order of predominance--from most to least inclusion. "However, this is not always enforced and there is no guarantee that list... Read More

Article

Toxin Suspected in North Carolina Horse Deaths

November 13, 2008

Veterinarians are trying to determine the cause of an illness that has killed four horses in Fairview, N.C., since last Thursday.

Affected horses show a rapid deterioration in muscle condition. Other clinical signs include lethargy, shaking,... Read More

Article

100 Horses Dead at Embryo Transfer Farm; Botulism Suspected

October 10, 2008

Around 100 horses have died at EquiTransfer, a Marion County, Fla., embryo transfer farm. Veterinary officials say that botulism from haylage might be to blame.

EquiTransfer is owned by veterinarians Jose Dávila, DVM, and his wife, Francis... Read More

Article

Poisonous Plant Risk Increases as Pasture Grass Goes Dormant

October 10, 2008

As autumn rolls around, pastures become depleted as grass and plant growth slows prior to going dormant for winter. So, it's not surprising that this time of year can also bring an increase in reports of horses becoming ill from... Read More