Investigators from the Farm Transparency Project have bravely captured shocking footage of this routine pre-slaughter practice used in Australia today – and what it looks like for the pigs forced to endure group gassing. Airing in a special report onABC’s 7:30 Program, the final, painful moments of sensitive pigs revealed the true cost of pork, bacon and ham products.
This is how it works: a small group of pigs is herded into a steel cage (called a gondola). The cage is then lowered into a deep chamber filled with carbon dioxide. As their nostrils, throats and lungs begin to burn from the high intensity of gas, the pigs become distressed. Many scream and struggle for up to thirty seconds until they eventually collapse unconscious. Finally, they are tipped out onto a bench, hung from shackles, and their throats are slit.
Whether factory farmed or free-range, this is how most pigs in Australia are killed.
It was in 2014 that the highly distressing routine gassing of pigs was first exposed inside Australia’s biggest pig abattoir. Although group gassing is claimed to be the most ‘humane’ method of rendering pigs unconscious before slaughter, what was revealed through this investigation however was that the Australian meat industry standard requires a carbon dioxide concentration at least four times higher than what is scientifically known to avoid distress. A Co2 concentration above 30% is extremely painful for the pigs; in Australia, the industry standard is between 80 and 90%, to have the kill line move as quickly as possible.
Incredibly, despite industry promises of reform, little has changed since these shocking practices were exposed almost a decade ago. What this means is that while Australian laws require animals to be rendered unconscious prior to slaughter to at least reduce suffering – the routine process of rendering pigs unconscious is one that causes abject pain and, for some pigs, terror.
Some small abattoirs use electrical stunning for younger pigs, placing a device on either side of the pig’s head to send a charge across the brain to induce unconsciousness. Breeding sows and boars who are normally slaughtered at a few years old when their ‘productiveness’ wanes, will usually be subjected to electrical or captive bolt ‘stunning’, before their throats are cut.