VIVA: Of the 10.7 million pigs killed in the UK each year, almost 90 per cent are stunned via gassing before being slaughtered. Pigs are lowered into a chamber containing a minimum concentration of 80 per cent carbon dioxide (CO2). The pigs are kept in the chamber until they are completely unconscious which can take … Continue reading LOOK AND LISTEN: The screams and scratches of pigs struggling to escape slaughterhouse gas chambers