Next I visited one of the largest pork producing plants in Ontario. Some 20,000 pigs a week enter its doors to be turned into bacon, ham, or chops. I thought the killing was slightly more humane than with the cattle. They were brought up unconscious, rolled out on the floor, strung up by one foot, and had their throats cut so as to bleed to death before regaining consciousness. However, I can't soon forget the screams and struggles of these pigs as they had to be driven up the final ramp to the gas chamber.
Pigs are very intelligent animals with highly sensitive noses.
It was clear they could smell the blood and could tell they were about to die. They too, were filled with terror at the end. The worst experience was a the third site, a packing plant for veal. This means their throats were sliced open while they were fully conscious. I know this method is permitted to Jews and Muslims for religious reasons and that it is argued that is just as humane an the other methods described.