Answer:
(Fatwa: 559/H=363/H)
If you are sure that in slaughter houses the shock given to the animal causes not only unconsciousness but the animal succumbs to the intensity of the shock, then the meat of such slaughter houses will not be allowed to consume. Also, slaughtering animals in this way is against Islamic slaughtering. Mufti Taqi Usmani Sahib (Karachi) has visited many slaughter houses of several countries and has observed the slaughter process personally, later based on his observations he wrote the Sharai rulings concerning such slaughtering in his book ?Fiqhi Maqalaat? (Vol. 4) in detail. This book is available in market. It is recommended that you study the book.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
