Footage from the Innovis farm near Great Yarmouth, Norfolk, appears to show male pigs being hit with forks and pipes and forced to walk on concrete covered in faeces despite injuries and lameness.

The Neixiang Muyuan Meat Industry Complex, a smart pig farm owned by Henan-based pig farming giant Muyuan Group, comprises 21 six-story buildings, each with the capacity to produce 100,000 pigs ...