This is what really goes on behind closed doors for chickens used for meat and egg production:

​

• 51.4 billion chickens are artificially hatched, fattened up and slaughtered as 42-day-old babies every year globally. A chicken’s normal lifespan is 10–15 years. 

• Chickens bred for meat are genetically manipulated to grow 65 times faster than their bodies normally would.

• Female chicks commonly have a portion of their beaks removed (a painful process), either severed with a hot blade or burned off to minimize the loss of value that would result from excessive feather-pecking.

• Over 200 million male chicks are killed each year by the egg industry. Because they can't lay eggs, they are killed by being ground up alive and fully conscious or suffocated in plastic trash bags. 

• Laying hens are commonly housed in battery cages, in close confinement, standing on wire-cage floors. They suffer severe feather loss, and their bodies become covered with bruises and abrasions.

• Naturally chickens will live between 5 and 8 years. Commercial egg-laying chickens are slaughtered after a couple of years.

• At the slaughterhouse, chickens are shackled and dragged upside down, fully conscious, through electrified water that paralyzes their muscles so that their feathers will come off more easily. Millions of chickens and turkeys are scalded alive after their throats are cut.

• Chickens grown commercially for meat typically spend their lives confined to warehouse-like buildings, each packed with as many as 20,000 chickens. Crowding can result in scratches and sores from the birds being forced to walk over each other.
   

Learn more: https://www.farmsanctuary.org/chickens/