Symptoms of Botulism in Horses

Botulism in horses is very serious. According to the "Horse Owner's Veterinary Handbook," equine botulism is caused by bacterial poisoning, often in the form of rotten food or hay that has been contaminated by dead rodents accidentally getting mixed up in huge hay bales. Call the vet immediately if any horse exhibits these symptoms of equine botulism.
    • All horses can get botulism

    Time Frame

    • According to "The Complete Equine Veterinary Manual," symptoms of equine botulism can occur up to five days after eating the spoiled feed or drinking contaminated water.

    Early Symptoms

    • The horse will lose control of the muscles it needs to chew and swallow. It will drool not only from the mouth but also from the nostrils.

    Movement

    • The horse will seem weak all over and often move with a slow shuffle or stumble as he tries to walk.

    Later Symptoms

    • In advanced stages of botulism, the horse will collapse and begin jerking the legs as if he is trying to run while lying down. Death soon follows.

    Prevention

    • Vaccines for equine botulism are recommended for all horses in order to avoid death. Foals need their first dose at two to four weeks old.