American Humane protects farm animals by working with producers through the American Humane Certified™ farm animal program (formerly known as the Free Farmed program). American Humane Certified™ guarantees consumers that the  products they select are from animals that were raised and treated humanely. For example, the American Humane Certified™ seal certifies that milk comes from cows which receive ample space, gentle handling, and no artificial growth hormones. They live on farms that meet American Humane Association (AHA) livestock-care standards, which include a healthy diet, a comfortable environment and care that limits stress, promotes health, prevents injury and disease, and allows the animal to express normal behaviors.

Source:  www.americanhumane.org