By Richard Brzozowski Ph.D., University of Maine Cooperative Extension, Anne Lichtenwalner, DVM, Ph.D., University of Maine Cooperative Extension and James Weber DVM Ph.D., School of Food and Agriculture, University of Maine. For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at extension.umaine.edu/publications/. As a sheep or goat