"The method of nitrogen foam uses a barrel, filled up with a layer of high expansion foam (big bubbles) completely filled with pure nitrogen. The animal will be placed into the foam and covered with a layer of foam of at least 60 centimetres. The animal will breathe 98 per cent nitrogen. Blood oxygen diminishes very quickly and the animal will very soon become unconscious. Because of the extreme oxygen deficiency (anoxia) the animal dies within 1.5-2 minutes. The animal will not regain consciousness and won’t notice that it dies. The animal will be unaware that it breathes in pure nitrogen. It will not be harmful or painful for the animal because the normal air an animal breathes consists already of 80 per cent nitrogen. Inhalation of nitrogen is therefore not stressful, whereas for example with high concentrations of carbon dioxide the animal will try not to breathe."
FYI this can be done easily without foam inside a pet carrier placed into a plastic bag. Cheaper and more humane than a vet probably...
Other suggestions and / or discussion welcome.
https://www.scientificamerican.com/...outed-as-more-humane-but-evidence-is-lacking/
FYI this can be done easily without foam inside a pet carrier placed into a plastic bag. Cheaper and more humane than a vet probably...
Other suggestions and / or discussion welcome.
https://www.scientificamerican.com/...outed-as-more-humane-but-evidence-is-lacking/
Last edited: