Instructions
Introduce the dog and horse to each other when they are young. If the two animals grow up together, it is less likely that issues will arise between the two animals.
Keep the dog or puppy on a leash or harness when it first interacts with the horse, for at least the first three to four weeks, which will allow you to have more control over the dog until it learns the proper behavior that it should exhibit around the horse. Leashing the dog will also teach it the boundaries as to where it is allowed to go, such as in the horse̵7;s stable, for example.
Train the dog, using firm commands such as ̶0;No̶1; or ̶0;Stay,̶1; when the dog is getting too close to the horse or not respecting the established boundaries.
Do not allow your dog to bark when interacting with the horse as barking will frighten the horse. Use the firm commands with the dog to stop the barking such as, ̶0;No bark.̶1;
Take the dog away from the horse until the next day if the dog gets too rowdy, tries to bark or tries to chase the horse. Training the dog and the horse to cohabitate is a process of getting the animals used to each other, and it can take several weeks, if not months.
Continue repeating the strategies until the dog no longer feels the need to chase the horse.
How to Make Your Dog Stop Chasing the Horse
At times, different types of animals can get along very well and have no issues being around each other. At other times, animals may behave badly around other animals that they do not know or with whom they feel uncomfortable. Dogs are typically uncomfortable with horses, and they often attempt to chase them, which can cause the horse to become frightened. You can train dogs to be comfortable around horses and to understand their boundaries so they do not chase the horse in the first place.