Anyone that thinks modern agriculture is some non-technical or backward technology is showing their profound ignorance.
Captive Bolt Pistol: is a device used for stunning animals prior to slaughter. Proper stunning is essential to prevent the pain and suffering of the animal during the bleeding (exsanguination) process (which is itself necessary to prevent meat spoilage) during butchering. The principle behind captive bolt stunning is a forceful strike on the forehead using a bolt to induce unconsciousness. The bolt may or may not destroy part of the brain.
The bolt itself is a heavy rod made of non-rusting alloys, such as stainless steel. It is held in position inside the barrel of the stunner by means of rubber washers. The bolt is usually not visible in a stunner in good condition. The bolt is actuated by a trigger pull and is propelled forward by compressed air or by the discharge of a blank round ignited by a firing pin. After striking a shallow but forceful blow on (or through) the forehead of the animal, spring tension causes the bolt to recoil back into the barrel. Wikipedia
A short commercial message regarding the very efficient Jarvis USSS-1…
The modern application of animal psychology and process design.