Deer are farmed in several countries for velvet antler, which is harvested while still growing and used in traditional medicine — a practice with significant welfare implications.
Velvet antler removal causes pain and fear even with analgesia — the restraint process itself is highly stressful for deer, which are prey animals sensitive to handling. In less regulated settings, procedures may be performed without pain relief. Deer kept in farm conditions may also suffer from inadequate space, social disruption, and chronic stress. The welfare case for the industry depends heavily on husbandry standards that are inconsistently applied.