LPNP (low power non-penetrative percussive): Low power percussive stunning using a non-penetrating humane killer (Cash magnum Knocker Concussion Stunner, 0.25 Calibre, 3 grain cartridge) followed by exsanguination using transverse incision of the neck as described above. This treatment was included, because there is a desire within industry to use low power non-penetrative stun in an attempt to maintain skull integrity as described in the Australian Quarantine and Inspection Service (AQIS) Malaysian Protocol