A long piece of wire is attached to two handles, then moved back and forth rapidly to saw through the horn base plus a ½-inch circle of skin.
Advantages: Can be used to remove horns in older cattle.
Disadvantages: Greater risk of exposed sinus, infection and blood loss; painful; may lead to set-backs in overall health and performance, including weight loss; requires follow-up care; poses risk of injury to the animal and handler.
Watch a video of cattle being dehorned with obstetrical wire. Caution: Graphic content.