Lambs receive their first antibodies via their mother's colostrum in the first few hours of life., they get the first vaccine at six months followed by subsequent boosters.
If farmers work with animal nutritionists and veterinarians sheep can be kept healthy. Lambs may be castrated and have their tails docked for easier shearing, cleanliness, and to help protect them from fly strike. Shearers or farmers need to remove wool from the hindquarters around the anus so that droppings do not adhere. In the southern hemisphere this is called dagging or crutching.