Dehorning is performed on cattle to reduce injury from horn-related aggression, but causes significant pain that can be substantially reduced through appropriate analgesia.
Cattle dehorning and disbudding cause documented pain at multiple levels - the acute pain of the procedure itself, and post-operative pain from tissue inflammation. Without analgesia, disbudding of calves shows clear behavioral and physiological pain indicators for hours after the procedure. Mature horn removal in older animals is significantly more painful, involving cutting through vascularized bone with substantially greater acute pain and longer recovery. The availability of effective analgesia protocols means that the continuation of dehorning without pain relief represents a preventable welfare harm. Polled genetics offer the most welfare-positive long-term solution by eliminating the need for dehorning entirely, though widespread adoption of polled genetics requires selective breeding programs that take years to implement.