Controlled Atmosphere Killing

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This article is about the method of slaughtering farm animals. For the proposed method of capital punishment, see nitrogen asphyxiation.

Controlled Atmosphere Killing (CAK) is a method for slaughtering animals such as chickens by placing the animals in a container in which the atmosphere lacks oxygen and is made up of argon and/or nitrogen and/or CO2, causing the animals to lose consciousness with little to no pain, and for this reason many consider it more humane than other methods of killing. Argon and nitrogen are important components of a painless gassing process as only using CO2 seems to cause distress.[1][2]

Portable units are available. Controlled atmosphere stunning has been used both within processing plants and on-farm for euthanizing poultry. One portable unit type that costs $2500 can be pushed down the aisles of a barn, with 200 - 250 hens per load being placed inside a CO2 enriched chamber. Hens are unconscious within 20 seconds of being in the chamber.[2]

[edit] See also

[edit] Sources and notes

  1. ^ PETA's Animal Times, UK, Autumn 2005.
  2. ^ a b The Animal Welfare Foundation of Canada article The Disposal of Spent Laying Hens by Jacqueline Wepruk

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