Apple seeds, as well as the leaves and stems of the apple tree, contain amygdalin. When amygdalin is digested, it releases cyanide, which is a deadly toxin. Horses are particularly sensitive to cyanide poisoning, and even small amounts can be fatal.
Symptoms of cyanide poisoning
Symptoms of cyanide poisoning in horses can include:
* Difficulty breathing
* Rapid breathing
* Increased heart rate
* Dilated pupils
* Bright red or blue mucous membranes
* Seizures
* Coma
* Death
Treatment for cyanide poisoning
There is no specific antidote for cyanide poisoning, but treatment can focus on supportive care and removing the source of the cyanide. Treatment may include:
* Administering oxygen therapy
* Administering fluids
* Inducing vomiting
* Administering activated charcoal
Preventing cyanide poisoning
The best way to prevent cyanide poisoning in horses is to keep them away from apple seeds, leaves, and stems. If you have apple trees on your property, make sure to clean up any fallen apples and leaves. You should also keep horses away from compost piles that may contain apple scraps.
If you think your horse may have been poisoned, contact your veterinarian immediately.