Shechita - Kosher Ritual Slaughter
Dr. Temple Grandin, a world recognised expert in animal welfare has inspected over 30 kosher beef plants in the U.S., Canada and other countries. She has personally tested and observed Kosher ritual slaughter, Shechita, and states that she was amazed that the cattle appeared to be unaware they were being slaughtered. They displayed no spasms nor even a flinch as is visible when the beasts have their ears punched tor placing tags.
Shechita is performed by making a single swift incision with a blade that is sharper and smoother than a razor or even a scalpel. The blade must be long enough to ensure one movement can complete the incision.
Additionally, the blade must be absolutely smooth. It is honed to perfection; in fact the entire blade displays a flawless mirror finish. The cutting edge is constantly tested by running both the flesh and nail of a finger both up and down, along every edge of the blade.
It is postulated that just as a "paper cut" is often not noticed until some time after the cut has occurred, so too the incision made by a faultless blade does not traumatise the nerves and does not trigger the pain receptors.
Dr Temple Grandin