What part of the sycamore tree is poisonous to horses?

The seeds and seedlings of the sycamore tree contain the toxic agent hypoglycin A, which causes severe muscle damage. If a horse ingests the seeds or seedlings of a sycamore tree he will develop atypical myopathy.

Can horses eat sycamore leaves?

Atypical myopathy (“Sycamore poisoning”) is a potentially fatal disease of horses in the UK and Northern Europe caused by eating Sycamore seeds (“helicopters”) or possibly leaves. … Even with intensive veterinary treatment, severely affected horses often die.

What is sycamore poisoning in horses?

Sycamore poisoning is a toxin derived disease which affects the muscle metabolism in horses producing a disease which can be rapidly fatal. The mortality for sycamore poisoning can be as high as 75-90% and early, intensive veterinary intervention is key for increasing survival rates.

Do horses like sycamore trees?

Horses do not appear to be naturally drawn to eat the sycamore leaves if other food is available and cases appear to be more common in fields with little grazing.

Are horses allergic to Sycamore?

Atypical myopathy or “Sycamore poisoning” can be fatal for horses. It is known as seasonal as it is thought that the helicopter seeds in autumn, and the saplings in spring, contain Hypoglycin-A that causes atypical myopathy in horses.

Is Sycamore poisonous to humans?

Atypical Myopathy is another name for this and obviously is related to grazing in the region of sycamore trees. The helicopter seeds and the leaves are poisonous, containing the poison Hypoglycin A (HGA) which causes muscle damage.

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Is sycamore wood poisonous?

Allergies/Toxicity: Besides the standard health risks associated with any type of wood dust, no further health reactions have been associated with Sycamore. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.

Is Sycamore poisonous to dogs?

According to the ASPCA poison plant list, the UC Davis poison plant list and my other sources, no part of the sycamore tree is toxic to dogs. This is not the case, however, for horses who have developed a myopathy (muscle disease) after ingesting the hypoglycin A present in those seeds.