Horse toxin ingestion
Read our curated health and wellness articles about pets to help keep your loved ones healthy!
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Symptom
Horse

Colic simply refers to pain in the abdomen, and does not provide any specific details regarding what organ system is affected or what underlying condition is occurring.

Oct 26, 2022 · 5 min read
Symptom
Horse

Lack of coordination, or ataxia, results from damage to the brain or spinal cord causing erratic and unstable movements.

Oct 26, 2022 · 3 min read
Condition
Horse

Eating dry or wilted red maple leaves is poisonous for horses, leading to life threatening toxicosis. Storms, high winds, and autumn all result in more leaves on the ground, and it is important to not allow a horse to graze in any place where red maple leaves may fall

Nov 4, 2022 · 4 min read
Condition
Horse

Oak trees are common in North America, and their leaves and acorns are toxic to horses when ingested in large amounts.

Nov 4, 2022 · 4 min read
Symptom
Horse

Jaundice, also known as icterus, is yellowing of the skin, gums and whites of the eyes. Horses showing jaundice require prompt veterinary assessment, as causes range from not eating to liver dysfunction or excessive breakdown of red blood cells

Nov 11, 2022 · 2 min read
Condition
Horse

Tall fescue (Festuca arundinacea) toxicosis occurs when horses ingest large amounts of fescue grass contaminated with the fungus Acremonium coenophialum. Pregnant and breeding age mares are the most affected by this toxicosis.

Jan 6, 2023 · 4 min read
Condition
Horse

Slaframine toxicosis occurs when horses ingest high levels of slaframine toxin. Slaframine is a fungal toxin produced by the Rhizoctonia leguminicola fungus, commonly found on the red clover plant, alfalfa, and legumes. Slaframine toxicosis is not life threatening.

Jan 6, 2023 · 2 min read
Condition
Horse

Monensin poisoning occurs when horses ingest a toxic dose of monensin, an antibiotic commonly used as a feed additive to promote cattle and poultry growth. Monensin is highly toxic to horses and commonly fatal.

Jan 24, 2023 · 5 min read
Condition
Horse

Yellow star thistle poisoning, also called nigropallidal encephalomalacia or “chewing disease”, occurs when a horse eats a toxic amount of the yellow star thistle plant. Yellow star thistle is an annual weed commonly found in western North America, the Mediterranean, Argentina, and Australia. 

Jan 24, 2023 · 4 min read
Condition
Horse

Botulism is poisoning due to botulinum toxin, produced by the bacterium Clostridium botulinum. In most equine cases, the toxin enters the body through spoiled food (generally hay or silage).

Jan 24, 2023 · 5 min read
Condition
Horse

Cardiotoxic plant ingestion occurs when horses ingest plants containing cardiotoxins: toxins that damage the heart muscle. Cardiotoxic plants can cause various symptoms, including abdominal pain, excessive sweating, seizures, collapse, and sudden death.

Jan 24, 2023 · 4 min read
Condition
Horse

Aflatoxins are a group of fungal toxins produced by *Aspergillus* fungi, which grows on a number of feed crops, such as corn, peanuts, and soybeans. 

Jan 24, 2023 · 3 min read
Condition
Horse

Pyrrolizidine Alkaloid (PA) toxicosis occurs when horses ingest a toxic dose of pyrrolizidine alkaloids, a group of organic compounds produced by a wide variety of plants as a natural insecticide.

Jan 24, 2023 · 6 min read
Condition
Horse

Selenium (Se) is a micronutrient mineral that, in small doses, plays an essential role in a healthy diet in horses. Selenium poisoning is a potentially life-threatening condition that occurs when an excessive amount of selenium is ingested.

Jan 24, 2023 · 4 min read
Condition
Horse

Blister beetle poisoning, or cantharidin toxicosis, occurs when horses ingest a toxic dose of cantharidin, a toxin produced by blister beetles. Blister beetles most commonly infest alfalfa hay, causing toxicosis in horses when they ingest the feed. 

Jan 26, 2023 · 5 min read
Condition
Horse

Alsike clover toxicosis is a potentially life-threatening condition caused in horses by the ingestion of the Alsike clover (Trifolium hybridum). Ingestion of Trifolium hybridum can cause two syndromes: liver failure and dew poisoning (Photosensitivity)

Jan 26, 2023 · 5 min read
Condition
Horse

Moldy sweet clover toxicosis is a potentially life-threatening condition caused by the ingestion of moldy sweet clover plants.  Moldy sweet clover plants produce the natural anticoagulant dicoumarol.

Jan 26, 2023 · 4 min read
Condition
Horse

Day-blooming jessamine poisoning is a life-threatening condition caused by the ingestion of day blooming jessamine (Cestrum diurnum), a plant high in calcitriol. Ingestion of a toxic dose of C. diurnum causes a condition in horses called enzootic calcinosis, where soft tissues become hardened due to build up of calcium

Jan 26, 2023 · 4 min read
Condition
Horse

Hemlock poisoning is a potentially life-threatening condition in horses caused by the ingestion of a toxic dose of the Conium maculatum plant, also known as hemlock or poison hemlock. 

Jan 27, 2023 · 4 min read
Condition
Horse

Black locust poisoning is a potentially life-threatening condition in horses, resulting from the ingestion of the seeds, leaves, or inner bark of the black locust tree. Symptoms of black locust toxicosis generally present within two hours of ingestion and include abdominal pain, diarrhea, blood in feces, and dilated pupils.

Jan 27, 2023 · 4 min read
Condition
Horse

Blue-green algae poisoning occurs when horses ingest a toxic dose of cyanobacteria. Cyanobacteria, commonly referred to as blue-green algae, are a group of bacteria that live in aquatic ecosystems (e.g., ponds, lakes, and creeks). 

Jan 27, 2023 · 4 min read
Condition
Horse

Lantana poisoning is a condition that occurs when horses ingest large amounts of the lantana plant, also known as yellow or red sage.

Jan 27, 2023 · 3 min read
Condition
Horse

Nightshade poisoning is a rare and potentially life-threatening condition in horses caused by the ingestion of plants in the nightshade family (Solanaceae spp.), including potatoes. Symptoms of nightshade poisoning include abdominal pain, diarrhea, incoordination, and seizures.

Jan 30, 2023 · 4 min read
Condition
Horse

Heavy metal poisoning is a potentially life-threatening condition that occurs when horses ingest toxic levels of heavy metals such as lead, arsenic, or mercury. Common symptoms include weight loss, diarrhea, and abdominal pain.

Jan 30, 2023 · 4 min read
Condition
Horse

Jimsonweed toxicosis is a rare and potentially life-threatening condition in horses that occurs from ingestion of jimsonweed (Datura stramonium). Jimsonweed plants contain a wide array of toxins that cause abdominal pain, dilated pupils, difficulty breathing, reduced appetite, and collapse.

Jan 30, 2023 · 4 min read
Condition
Horse

Nitrate or nitrite poisoning, also referred to as brown blood disease, is a rare and potentially life-threatening condition in horses caused by excessive consumption of nitrate-containing forages, contaminated waters, and some kinds of fertilizers.

Jan 30, 2023 · 5 min read
Condition
Horse

Fumonisin toxicosis is a life-threatening condition that occurs when horses ingest fumonisin, a fungal toxin produced by Fusarium verticillioides or F. proliferatum fungi which grow on sweet corn. 

Jan 30, 2023 · 3 min read
Condition
Horse

Ryegrass staggers occurs when horses ingest a toxic dose of ryegrass contaminated by fungal or bacterial toxins. Lolium, or ryegrass, is a type of grass found worldwide, commonly used in pastures, lawns, and for soil erosion control. 

Jan 30, 2023 · 4 min read
Condition
Horse

Cyanide toxicosis, also known as sorghum poisoning, is an uncommon condition that occurs when horses ingest toxic levels of plants that contain cyanogenic glycosides. The most common cause of cyanide toxicosis in horses is ingestion of sorghum plants. 

Feb 1, 2023 · 4 min read
Condition
Horse

Oxalate toxicosis occurs when horses ingest a toxic dose of oxalates, which are naturally occurring acid compounds that can be found in a number of plant species. Once ingested, the oxalate acids bind to calcium in food sources, preventing absorption of calcium by the body. 

Feb 1, 2023 · 4 min read

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