How do they humanely kill cows?
The Humane Slaughter Act specifically requires that cows and pigs be "rendered insensible to pain by a single blow or gunshot or an electrical, chemical or other means that is rapid and effective, before being shackled, hoisted, thrown, cast, or cut." There's an exception for kosher and/or halal slaughter, and a big ...
How are cows killed in factory farms?
Sick cows may be killed on factory farms using a gun or a captive bolt. Cows whose bodies end up being eaten – which includes the bodies of dairy cows – will be killed at a slaughterhouse.