I don't know if this is of any help, its from the Vet Q&A page in the Telegraph (
http://www.telegraph.co.uk/lifestyle/pets/10815779/Pet-subjects-how-long-do-snakes-survive.html )
BVA launches petition to end non-stun slaughter
The British Veterinary Association (BVA), with the support of the RSPCA, has launched a government e-petition to end non-stun slaughter (bit.ly/stunB4slaughter). Current animal welfare legislation requires all animals to be stunned before slaughter with exceptions for certain religious communities: Dhabihah slaughter for Halal food and Shechita slaughter for Kosher food. The BVA hopes to get 100,000 signatures to the e-petition, aiming for a debate in the House of Commons.