Abstract: An unloading system for unloading at least one transport unit having at least one rack and at least one transport crate mounted for receiving poultry. The rack includes a transport restraint for each transport crate, which include a bottom and side walls. A cover arranged at a distance from the upper edge of the side wails. The system includes an unloading station for at least one transport unit, a pushing device for ejecting transport crates in an ejection position, and a receiving device for receiving and conveying ejected transport crates. In the ejection position, position of transport crate to the cover is vertically controllable during the entire ejection operation so a maximum distance between the upper edge of trailing side walls of the transport crates in the pushing direction and the cover are maintainable depending on the position of the transport crate within the rack during the ejection operation.

Abstract: A method and a system (2) for gas stunning of animals for slaughter is described, where the animals arrive at the slaughterhouse in transport crates (6), where gas stunning of the animals is effected while they are still in transport crates (6), and where the transport crates with the animals, a number of conveyors (12, 14, 18, 20), are conveyed successively through a stunning chamber (8), where the action of the gas for stunning of the animals is adjusted by shortening or prolonging the conveying time and/or the conveying route of the said transport crates (6) through the stunning chamber (8). It is possible to optimize stunning while at the same time considering all the parameters. If the stunning condition of the animals is not optimum, it is easy to prolong or shorten the conveying time and/or the conveying route through the stunning chamber.

Abstract: A method and a system (2) for gas stunning animals for slaughter is described, where the animals arrive at the poultry slaughterhouse in transport crates (6), where gas stunning of the animals is effected while they are still in transport crates (6), and where the transport crates with the animals, by means of a number of conveyors (12, 14, 18, 20), are conveyed successively through a stunning chamber (8), where the action of the gas for stunning of the animals is adjusted by shortening or prolonging the conveying time and/or the conveying route of the said transport crates (6) through the stunning chamber (8). It has surprisingly appeared that by means of such simple measures it is possible to optimize stunning while at the same time considering all the parameters. If the stunning condition of the animals is not optimum, it is easy to prolong or shorten the conveying time and/or the conveying route through the stunning chamber.