method and apparatus for unloading poultry as disclosed . a chute is placed proximate the door of a coop . the door is opened and the poultry are urged out of the coop onto the chute . the poultry then slide down the chute onto a conveyor , which ultimately transfers the poultry to a gas stun vessel . the poultry are then transferred to a shackle line where they are shackled , without a full lift , and then proceed to an electrical stun and killer . the gas stun vessel includes a static mixer for effectively mixing the co 2 and air before delivery to the gas stun vessel .