1,000 farms supply fast food chain KFC with 23 million chickens a year . Birds live in huge sheds for just 35 days before they are gassed to death . Documentary filmed One chickens in a shed with few windows . Activists say the conditions the chickens are kept in are 'oppressive ' around 34,000 farmer claims the birds have a short but 'very good life ' KFC said all their suppliers meet or exceed UK and EU welfare requirements .
1,000 farms supply fast food chain KFC with 23 million chickens a year . Birds live in huge sheds for just 35 days before they are gassed to death . Documentary filmed around 34,000 chickens in a shed with few windows . Activists say the conditions the chickens are kept in are 'oppressive ' One farmer claims the birds have a short but 'very good life ' KFC said all their suppliers meet or exceed UK and EU welfare requirements .