1.  Exhaust for Birds Hanging Working Station

Each work station should be set exhaust outlet, to ensure staff healty.

2.   Poultry Stunning

WSPA requires stunning takes place after birds hung on the overhead conveyor line for 12s and stop flapping their wings. And the time is not more than 1min, from the first hanging position to the electrical stunning position. But RSPCA requires that, after Jan. 1th 2010, the time is not more than 30s, when chicken hung upside down before stunning. It seems that high suspension line from hanging to stunning use direct form is the the developing trend. Stunning is a critical point to the regulation requirement, where high frequency waterbath stunning method is an effective way. Stunning time reference as follows: chicken below 8s, ducks about10s, goose about 12s. Bloodletting process after stunning within 10s.

3.   Killing

3.1 Mechanical Slaughtering.