Oh my goodness, so much misinformation in this thread!
Valhalla, I really respect you for your good work with dogs but some of the info you have re slaughter is way, way out of date.
Pithing has been banned in animals destined for the human food chain since 1st July 2001 (because it was shown to cause emboli of CNS tissue to make their way into the bloodstream of the animal, and potentially into the meat - in the aftermath of BSE all central nervous system tissue from cattle and sheep is classed as SRM (specified risk material) and cannot enter the food chain). Unfortunately this has serious animal welfare implications - much as it sounds and appears unkind, if you stop and think about it there's no way you could be conscious and experiencing pain once your brain's been lacerated by a pithing rod. So eliminating pithing from the process has actually increased the likelihood that the animal will experience pain, in those cases where stunning is ineffective or where there is a delay in sticking.
Sticking is the technical term used to describe the cut made to sever the jugular veins and carotid arteries. It is the method by which all sheep and cattle are bled following stunning (or not, for Halal slaughter), not a method chosen by particularly sick and twisted slaughtermen
. A successful sticking by a trained slaughterman should result in an incredibly rapid drop in blood pressure with accompanied loss of consciousness. Blood may run to the head due to gravity but in practice the palpebral (blink) reflex is almost always absent at this point, confirming the absence of consciousness.
It is my understanding (and I am by no means particularly knowledgeable when it comes to the minutiae of various religious matters) that some religious groups have conceded to pre-slaughter stunning on the basis that the animal is crucially still alive when the cut is made, just not actually conscious. Another concession that has been made in some cases is that stunning has been allowed post-sticking.
And just for information, extremepie, animals are not allowed to move around during Halal slaughter - there are specific crates designed to keep them still to minimise the risk of failed sticking and subsequent suffering (not to mention human injury). See http://www.twfta.com/datas/products/8/d/3/8d3ec9b3c4debbc341ff67139df4b82b/products/photos/1276090191picupload.jpg.jpg here for a pic.
I've spent a lot of time in slaughterhouses, and I've seen things go wrong, but I have also seen how highly skilled and professional most of the workforce are. Of course there are rotten apples but in my experience it is a job taken seriously and the animals are treated with respect. And, vitally, suffering is minimised.