Footage reveals chickens in 'horrifying conditions' at big UK producer

Secret filming at three Moy Park farms in Lincolnshire shows birds that are lame, struggling to breathe and surrounded by carcasses

One of the UK's biggest chicken producers has been keeping chickens in cramped conditions on three farms in Lincolnshire, including in enormous "double-decker" multi-storey buildings, where secretly filmed footage shows chickens that are lame, struggling to breathe and surrounded by dead birds.

From across their sites in Northern Ireland and England, Moy Park supplies 30% of the British poultry market, including Tesco, Ocado and Sainsbury's. The supermarkets have told the Guardian they they are now investigating their supply chains after the footage was sent to them.