Poisoning & Toxicity

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Investigating Horse Poisoning

When an owner suspects that a horse might have eaten something poisonous, the veterinarian is generally the first person he or she calls. In addition to treating any health problems, that veterinarian is uniquely suited to investigate the cause

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Was Phar Lap Poisoned?

The great Australian Thoroughbred racehorse Phar Lap came to the United States to challenge all comers. He died of mysterious causes on April 5, 1932. Last year a group of scientists tested a section of Phar Lap’s hide that was preserved and on

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Four Horses Die after Feed Mixing Error

A horse and three ponies have died, and several other equids have been temporarily paralyzed, following the ingestion of contaminated feed in French Guiana (a department of France located on the northern edge of South America), according to the

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Imported Hay Could Hold Hidden Health Dangers

As if hay scarcity and high prices aren?t enough, experts are warning horse owners that imported hay could also hide horse health dangers including seriously low amounts of essential vitamins such as A and E, excessive amounts of selenium, and

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Unacceptably High Fungal Levels Identified in Horse Feeds

High levels of fungal species and mycotoxins (the toxins produced by some fungi) have been identified in equine feeds. This contamination can result in nutrient losses from the food, and it can negatively impact the health and productivity of

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Toxicity of Equisetum to Horses

Present and persistent since the Paleozoic era (250 to 540 million years ago), the plants of the genus Equisetum, commonly known as horsetail, are considered to be living fossils. These widespread, perennial, fern-like plants are found in most temperate areas of the world. They can have detrimental effects on horses if consumed in large quantities (e.g., four to five pounds

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Horse Riders Charged With Intoxication

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

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Blister Beetles in Hay: Shop Smart to Reduce the Risk

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

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