Hypoxia is a condition that occurs when the blood doesn’t carry enough oxygen to the tissues.
Despite hypoxia being deemed as an acceptable depletion and depopulation method for pigs and poultry worldwide using inert gases like nitrogen and argon, it has not been used for whole-house gassing.
This is due to the lack of ability to seal a house or shed and adequately eliminate the oxygen.
The NFDS has been designed to resolve this issue. Using nitrogen, the NFDS delivers high expansion gas-filled foam that entirely surrounds the animal.
This method effectively eliminates the oxygen, allowing groups of animals to be rapidly exposed to anoxia without the need to seal the house or shed.
Due to the speed at which the animal breathes in the nitrogen, they very quickly lose consciousness allowing a stress, harm and pain free way of culling.