Stunning is the process of rendering animals immobile or unconscious, with or without killing the animal, when or immediately prior to slaughtering them for food.
Medieval stunning using a mallet
Blueprint for a slaughterhouse designed by Benjamin Ward Richardson, published 1908.
Sheep at Maidstone cattle market, Kent, 1944
Modern captive bolt device
A captive bolt pistol is a device designed for stunning animals prior to slaughter.
A captive bolt pistol
A captive bolt pistol in use on a cow