A professional who stuns animals, such as cattle, hogs, sheep, or goats, preparatory to slaughtering. Respnsibilities include:

• Opens gate to allow animal to enter knocking pen or chute.
• Moves levers to close squeezing mechanism that immobilizes animal.
• Stuns animal by striking it on forehead with sledgehammer, pneumatic hammer, or cartridge-firing stunning device; by shooting it in head; or by placing electric shocking device against head of animal.
• Pulls levers to tilt floor of pen and slide animal onto killing floor, or onto conveyors leading to sticking and shackling tables.
• May stick, shackle, and suspend animals from overhead conveyors or rails.
• May assist in driving animals into knocking pen or chute.