We recently bought four Dexter cows. These are a smaller dual purpose breed, good for both meat and milk. They have horns which is useful if they are trained to be oxen. They are heifers. A bull ran with them for 6-8 months, so hopefully they are all bred.
One of my favorite views are cows laying down chewing their cud. It is a sign of being contented and adequately fed; in my book, a happy cow!