Disease outbreaks requiring mass culling of poultry create acute welfare challenges. Rapid, humane killing of large flocks requires planning, training and equipment that is often inadequate when crises occur.
Mass culling welfare presents a genuine ethical dilemma: speed of killing reduces suffering from disease progression; welfare of the killing process requires time and care that may conflict with speed. The optimal approach requires pre-planning that identifies humane killing methods appropriate to flock size, ensures equipment is available and operatives are trained before crises occur, and sets welfare standards that apply even in emergency contexts. The psychological welfare of operatives involved in mass culling is also a genuine concern - workers who witness large-scale animal death repeatedly without adequate support suffer occupational trauma that has been documented in multiple culling operations.