Final answer:
Clippers should be set to the lowest speed setting when beginning to clip a horse's ear and adjusted carefully while observing the horse's comfort.
Step-by-step explanation:
When clipping a horse's ear, it's important to use the appropriate speed setting on the clippers to ensure comfort and safety for the horse. Clippers can have multiple speed settings, and while there isn't a one-size-fits-all answer, many groomers recommend using a lower speed for the ears than for the body because the ears are a more sensitive area. Furthermore, a quieter and cooler running clipper can help prevent startling the horse.
Before clipping, the horse's ears should be clean and the clipper blades should be sharp and well-oiled. Start with the clippers on the lowest setting, then adjust as needed while carefully watching the horse's reaction. If the horse seems comfortable and the hair is being effectively trimmed, you can continue. However, if the horse appears stressed or the clippers aren't effectively cutting the hair, you might need to adjust the speed slightly higher. It's always best to go slow, be patient, and use steady, gentle strokes.
Remember to take breaks if the clippers overheat or if the horse becomes agitated, and always prioritize the animal's well-being over the speed of grooming. Professional groomers or experienced individuals should only perform clipping, especially around such a delicate area as the ears. If unsure, seek the assistance of a professional to avoid any accidents or injuries.