Stunning

Pigs

• 86% of pigs in the US are stunned using CO₂ gas chambers.[S]

• The largest pork producer in Canada uses CO₂ gas chambers in 4/5 plants, the second-largest & sixth-largest (the latter is also the second-largest in Ontario) stun all pigs like this. No data is available on the rest of producers.[S][S][S]

• 85% of pigs in Australia are stunned using CO₂ gas chambers.[S]

• 2 of the largest pork producers in Brazil use CO₂ gas chambers (one exclusively, and one for 65% of pigs). No data is available on the rest of producers.[S][S]

Europe

• "Nearly" 100% of pigs in Sweden are stunned using carbon dioxide (CO2) gas chambers.[S]

• 98% of pigs in Denmark are stunned using CO2 gas chambers.[S]

• 90% of pigs in Finland are stunned using CO2 gas chambers.[S]

• 90% of pigs in the UK are stunned using CO2 gas chambers.[S]

• 87% of pigs in Belgium are stunned using CO2 gas chambers.[S]

• 75% of pigs in Germany are stunned using CO2 gas chambers.[S]

• 75% of pigs in Poland are stunned using CO2 gas chambers.[S]

• 75% of pigs in The Netherlands are stunned using CO2 gas chambers.[S]

• 75% of pigs in Spain are stunned using CO2 gas chambers.[S]

• 50% of pigs in Austria are stunned using CO2 gas chambers.[S]

• 50% of pigs in Italy are stunned using CO2 gas chambers.[S]

• 31% of pigs in France are stunned using CO2 gas chambers.[S]

Cattle

• A study including hundreds of cattle found that 16.7% of bulls are inadequately stunned, still displaying clear signs of consciousness after being shot.[S]