So I was thinking about how Jews or Kikes allegedly will try not to eat or drink animal blood and how the blood is drained out of animals with the animal alive prior to it being used for meat in food

I was wondering if the animal is kept alive because the blood might drain out faster when the animal is alive because the heart beats

I was wondering if historically they collected the animal blood to use in rituals to vampire like gods, when they slaughtered animals for food the way they did