Marel offers two methods for stunning poultry both of which comply fully with strict European regulations; high-frequency electrical water bath stunning and multi-phase controlled atmosphere stunning (CAS). The use of carbon dioxide in two phases as practiced in the multiphase CAS system is specifically mentioned in the list of stunning methods accepted without any additional requirements being necessary.

The modular multi-phase CAS controlled atmosphere stunning system connects perfectly to the GP and ATLAS live bird handling systems and is especially suitable for today's highest processing speeds.

Both methods ensure an effective stun, an important pre-condition for an automatic kill cut.