Docking improves the health and welfare of sheep and lambs. It prevents fecal matter from accumulating on the tail and hindquarters of the animal. Research has shown that tail docking greatly reduces fly strike (wool maggots), while having no ill effect on lamb mortality or production.
The easiest and most common method of tail docking is to apply a rubber ring (or band) to the tail using an elastrator tool. Banding is a bloodless method of tail docking. The band cuts off the blood supply to the tail, causing the tail to fall off in 7 to 10 days.