Vinegar isn't just limited to cats, dogs, rabbits, and parrots. There are all kinds of uses for vinegar when it comes to barnyard animals. For instance, you might be surprised to learn that vinegar is a horse's best friend (it controls flies).
Use white or apple cider vinegar to clean a chicken's water container. Pour vinegar directly onto a rag and wipe the containers, then rinse with water.
Spruce up a horse's coat by adding 1/2 cup vinegar to 1 quart of water. Use this mixture in a spray bottle to apply to the horse's coat before showing.
Pour 1/4 cup of apple cider vinegar onto a horse's regular grain feed once a day to deter pesky flies. Dogs sometimes like to eat horse droppings in the barn. Some dog and horse owners claim that adding 1/2 cup of vinegar to the horse's feed twice a day will discourage dogs from doing this.
From dogs to horses, vinegar can come in handy. Maybe vinegar really is an animal's best friend.