Poisoning & Toxicity

Article

Horse Dies in Decomposing Seaweed; Toxic Gas Blamed

August 06, 2009

A horse died and its owner fell unconscious within seconds of falling into decomposing green seaweed along the northern coast of Brittany, France, last week, according to several sources.

Vincent Petit, DVM, PhD, said he was hand-leading... Read More

Article

Poisoned Saddlebred Horses on the Mend

August 05, 2009

An American Saddlebred show horse in critical condition after ingesting unknown quantities of oleander leaves is recovering and will be released from the hospital later this week, according to the veterinarian supervising its... Read More

Article

Poisoned Horses Update; One Still Critical

August 02, 2009

Debbie Tomin, co-owner with her husband, Bill, of Rockridge Farm in Rancho Santa Fe, Calif., told TheHorse.com late Sunday morning that "23 horses were fed the poisonous concoction (of apples, carrots, and oleander leaves).

"All the one... Read More

Article

California Show Horses Poisoned with Oleander

August 02, 2009

In California, a San Diego County ranch owner says 23 show horses have been poisoned by someone who fed them highly toxic oleander leaves.

Debbie Tomin, owner of Rockridge Farm in Rancho Santa Fe, Calif., says three horses are seriously... Read More

Article

Snakebite Woes

August 01, 2009

Have you noticed or had owners comment on the change in a horse's personality after a rattlesnake bite? My mar... Read More

Article

Hay Herbicides Not a Risk to Horses, Despite Manure-Fertilized Crop Loss

July 10, 2009

Recent reported crop losses in North Carolina and several other states are linked to certain broad leaf herbicides containing aminopyralid, clopyralid, and picloram, according to researchers. In North Carolina, people with gardens and organic... Read More

Article

Grazing Horses in Moderately Polluted Areas

June 27, 2009

Horses might serve as good management tools for pastures moderately polluted by trace elements, according to Spanish researchers. And provided the animals receive adequate, systematic monitoring through biological sampling, they can be kept on... Read More

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

Article

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

Article

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

Article

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