Castration of male livestock is practiced for behavioral management and meat quality, but the procedure causes significant pain that can be substantially reduced with appropriate analgesics.
Livestock castration without pain management is one of the most prevalent welfare harms in animal agriculture, affecting hundreds of millions of animals annually. The pain involved is significant and measurable, and the availability of effective analgesics that eliminate or greatly reduce this pain makes continued practice without pain relief difficult to justify on grounds other than cost and habit. The cost of providing lidocaine local anesthesia and NSAID follow-up is modest relative to animal value. Building pain management for castration into routine farm practice requires regulatory requirements, veterinary training, and a farming culture that treats pain relief as an obligation rather than an option.