With Halal there is No Mention in the #Koran of Barbaric Slaughter. The Prohibited Foods and Meat are detailed in 2:173, 5:3, 6:145 and 16:115. From these verses we have a clear account of what is halal (lawful) and what is #haram (prohibited).
It has to be remembered this is with regards the Act of Eating, not Slaughtering.