There are some Muslim imams who allow stunning before slaughter - I believe kosher does not allow such an exception at all, according to reports.
This is true. The basic reasoning is that as much blood must leave the animal before storing as possible. And then the imams work with variable interpretations, mostly based on what culture they are from. But that is the basic idea. It comes from this in the case of muslims and "halal":
Say, "I do not find in the revelations given to me any food that is prohibited for any eater except:
(1) carrion, (2) running blood, (3) the meat of pigs, for it is contaminated, and (4) the meat of animals blasphemously dedicated to other than GOD." If one is forced (to eat these), without being deliberate or malicious, then your Lord is Forgiver, Most Merciful. (Quran 6:145)
The difference of bleeding between an animal knocked out and one that is not is minimal, since these bodily functions are entirely disconnected to contiousness. The large majority of sane imams refuse to make an issue of it. As long as the basic premise is kept. 1.bleed as much as possible 2.dedicate to God by uttering "Bismillah"(in the name of God) when you take its life.
The only ones who insist on it being done without the use of cashknocker bolt pistols are the scumbags who abuse religion for their own political ends. They are easy to spot. They always make a lot of fuzz about looking the right way, with the funny hat and whole thief of baghdad theme going on there, but as soon as they open their filthy bearded gobs you realise that they do not posses an iota of spirituality and I am hardpressed to point out what humanity is left in them.
I understand why companies are doing what they doing. What I dont understand is why they dont just Kosher slaughter the whole thing since kosher is allowed for muslims as well. For as long as our treatment of animals while they are alive are as asbysmall as it is. I find it incredible hipocrate to mourn the last 10 seconds of the animals life. (not pointed at anyone here mind you)