Poisoning & Toxicity


Horse Riders Charged With Intoxication

June 01, 2007

Two people police say were hoping to avoid drinking and driving chose instead to head home on horseback, and ended up under arrest anyway.

Culpeper, Va., police officers Lonnie Myers and Tim Chilton heard a disturbance last Thursday aroun... Read More


Manna Pro: Milk Replacer Recall Not Linked to Melamine Contamination

May 07, 2007

The recall of a batch of milk replacer commonly used for foals is not related to the widespread pet food recalls, according to a report released by the company.

A batch of Unimilk milk replacer was withdrawn after customers reported that th... Read More


Blister Beetles in Hay: Shop Smart to Reduce the Risk

April 12, 2007

Alfalfa hay is an excellent, high quality forage for horses, but it has the potential to attract blister beetles--toxic insects that can kill horses if ingested.

Blister beetles cause inflammation and blistering of the skin within hours... Read More


BHS Supporting Efforts to Eliminate Toxic Weed

March 23, 2007

The BHS is launching the first part of their 2007 Ragwort Awareness Campaign, urging all concerned parties to get pulling to prevent the spread of Ragwort.

They will once again be holding two Ragwort Awareness Weeks; April 2-8 and... Read More


Toxic Chemical Identified as Cause of Maine Horse Deaths

March 16, 2007

According to Maine State Veterinarian Don Hoenig, VMD, an antibacterial additive used in cattle feed has been identified as the cause of death for seven Searsport horses, the Read More


Seasonal Tying-Up: Toxins or Deficiency?

December 02, 2006

In Minnesota, cases of pasture myopathy (muslce disease caused by pasture) associated with severe non-exercise-induced rhabdomyolysis (also know as tying-up) are often attributed to the toxins found in white snakeroot. However, researchers at th... Read More


Mycotoxins and Horse Health Covered in Forum

December 01, 2006

The Fourth World Mycotoxin Forum was held in Cincinnati, Ohio, Nov. 6-8. Scientists, regulatory authorities, and industry personnel from over 30 countries met to review the current knowledge related to mycotoxins and discuss strategies for the... Read More


University of Wisconsin Vying to Host Animal Disease Lab

November 29, 2006

The University of Wisconsin-Madison hopes to land a new high-security federal lab where scientists would help lead the nation's research on deadly animal diseases.

The lab would be operated by the U.S. Department of Agriculture and the U.S.... Read More


FDA Warns Horse Owners About Fumonisins in Horse Feed

November 29, 2006

Each year, a number of horses die from eating corn or corn byproducts containing fumonisins. Fumonisins are a group of toxins produced by an endophytic mold found within the corn kernel. Typically, fumonisins are produced while the corn plant is... Read More


FDA Warns Horse Owners and Veterinarians About Deaths Due to Unapproved Clenbuterol

November 27, 2006

The FDA has become aware of the deaths of several horses in the State of Louisiana associated with the use of a product labeled as "Clenbuterol HCL." Horse owners and veterinarians should be aware that there are no generic clenbuterol-containing... Read More


Madonna Receives New Horse for Birthday

November 26, 2006

Singer/actress Madonna received a purebred Welsh gelding for her 47th birthday from her husband, Guy Ritchie, according to an icwales.co.uk article by Steve Dube of the Western Mail on Nov. 25. The gray gelding, Ystrad Dewi Briton (barn name... Read More


Concentrated Counterfeit Clenbuterol Having Deadly Effect

November 22, 2006

Veterinarians at Louisiana State University have confirmed that two horses being treated at their veterinary teaching hospital died after ingesting concentrated clenbuterol. Tests on the drug have revealed that the solution contains 70 times the... Read More


New Claim: Arsenic Poisoning Killed Phar Lap

October 23, 2006

Arsenic killed Australasia's greatest racehorse Phar Lap near San Francisco 74 years ago, a new scientific study alleges. The story in the Rupert-Murdoch-owned (Melbourne) Sun-Herald suggests that the finding 'reveals' that Phar Lap was... Read More


Owner of Texas Boarding Stable Suspects Intentional Poisoning of 27 Horses

September 21, 2006

The owner of Carousel Acres, the College Station, Texas, boarding facility where 27 horses died the week of July 16, says he now believes the horses were poisoned intentionally, according to The Eagle Land and Livestock Post.

The... Read More


Damage From Within

September 01, 2006

Mycotoxins can form in plants within hours and they can reach maximum concentration within one to two weeks. ... Read More


Accidental Poisoning Kills 27 Horses at Texas Boarding Barn

September 01, 2006

Twenty-seven horses died the week of July 16 from apparent accidental poisoning at a boarding farm in College Station, Texas.

Researchers at nearby Texas A&M University (TAMU) suspect a pesticide fumigant used in a feed silo nearby was... Read More


Purina Releases Statement Regarding Texan Toxicity Incident

August 17, 2006

Press release from Land O'Lakes Purina Feed LLC:

The Texas A&M College of Veterinary Medicine has advised Land O'Lakes Purina Feed LLC that it has completed its investigation of the Brazos County, Texas, horse mortality... Read More


Texas Department of Agriculture Investigating Toxicity Deaths

July 25, 2006

The Texas Department of Agriculture is investigating the manner of pesticide application that led to the deaths of 27 horses at a boarding facility in Read More


Texas A&M: Horse Mortality Incident Traced to Pesticide

July 21, 2006

Testing at the Texas A&M University College of Veterinary Medicine and Biomedical Sciences and the Texas Veterinary Medical Diagnostic Laboratory has yielded evidence that the toxic principal responsible for the recent deaths of more... Read More


Exact Cause of Toxicity Deaths Still Unknown

July 21, 2006

Researchers at Texas A&M University (TAMU) in College Station, Texas, say they strongly suspect that the pesticide used on feed at nearby Carousel Acres was directly involved in the death of 27 horses. However, the reason for the extreme... Read More


Veterinarians Investigate Toxicity Deaths

July 20, 2006

Twenty-seven horses have died in what appears to be an accidental poisoning at a Brazos County, Texas boarding barn, reports The Bryan-College Station Eagle, a local newspaper.

Preliminary reports suggest that the horses' feed... Read More


Australian Toxic Feed Case Decided

July 06, 2006

An Australian court awarded $71,000 in damages after a Sydney area family’s Thoroughbred mare died and three other show horses were permanently retired due to heart conditions resulting from contaminated feed, the Sydney Morning... Read More


Dealing with Old Injuries

June 01, 2006

I have a 20-year-old Quarter Horse that is in top working condition, worked daily in basic dressage, and he is always happy to jump whatever I ask him to. However, before I purchased him, he had a deep wound in his offside flank. It’s long been... Read More


Nightshade and Ivermectin: A Deadly Mixture

May 01, 2006

Editor's note: When researching the unknown illness story on this page, the following study on ivermectin's interaction with a noxious weed was discovered. Nightshade and other poisonous plants should be eliminated from pastures.... Read More


Four Horses Dead, One Ill; Dewormer Questioned

May 01, 2006

Four horses on a South Texas farm died from unknown causes in February; one horse is recovering. The horses' owner suspects the problems might have been caused by a dewormer; she has necropsy and other test results, but she has not released them... Read More