Let’s take the example of the machine slaughtered chickens if you will. Before mechanical slaughter, the chickens are immersed in a huge electrified water tank or electrified water is poured over them. This electrical current may cause death before they get slaughter.
The electric current is very high because the chickens need to be very calm and steady to be slaughtered by the machinery. If they are not stunned, it would be unhygienic and inhumane particularly if the chickens were to move during the process. As a result of this practice, there is, once again, a high risk of the chickens dying before slaughter.