To the best of my knowledge...Its different because, when animals are slaughtered in Islamic way..they let the blood out completely(blood isn't Halal) that otherwise back circulates or stay inside the body/burns.
Perhaps this is the reason why animals that drink blood are declared Haram.
Yes he is correct. I'll just add a little more though. The ides is to cut the two jugular veins and not disturbing the spinal cord (no decapitation) in the process. Animal dies due to the loss of the blood not due to the death of the brain (as in the case of so called non-halal ways). So during the whole process, as much blood leaves the body because the brain and the heart are functioning until the very end.
In addition to this, some Ulema (actually majority of them) also argue that the animal is not considered halal until he is sacrificed while facing him towards the Mekkah and saying Allah's name (Allah O' Akbar) during the process of cutting the jugular veins. In my opinion though, not every animal is for sacrifice, hence this rule may not be applicable to the non-sacrificing animal (for everyday consumption). For instance, there are rules on the quality of the animal that is going to be sacrificed, such as it should have both the horns intact, both they eyes functioning, no limp or other visible disability etc. But for animals for regular consumption, there are no such requirements. Hence, I think (Allah knows better) that it is not important to sacrifice the animal for everyday consumption like we sacrifice the Sacrificial animals. Just cutting the two jugular veins and letting as much blood flow out of the body should be sufficient.
Another thing is there is a big difference between Halal and Zabiha. A goat is Halal no matter how it was killed, but a dog is haram even if it was killed by cutting the jugular veins. So buying meat just by looking at the label ‘halal’ doesn’t mean the meat actually came from ‘Zabiha’ animal. But we can only go so far, and Allah knows and forgives. This is not a big problem (still is though) in Islamic countries, but in non-Islamic countries, we can only make all the efforts possible and let rest on the mercy of Allah.
Maybe brother Al-Zakir put some more light on this.
can i ask a question?
why is the Islamic way of killing(chicken) different from the other non-islamic ways?
like the use of poison gases and electricity..?
I usually avoid bringing Science into theology. But just to clear it for you, methods such as poisoning and gassing and even de-capitation make the animals traumatized (stress-induced analgesia). In trauma, brain instructs the body to release a number of compounds for trauma management such as cannabinoids, also known as 2-AG. These compounds in excess may be harmful for the human consumption. The reason behind using a very sharp object for cutting the jugular veins is also for the same purpose to minimize the trauma for the animal. Even if some compounds were released during the process, they leave the body with the blood.