what is chickens used for
Chickens Used for Meat. Chickens used for egg production are among the most abused of all farm animals. In order to meet the consumer demand for eggs, 280 million hens laid 77.3 billion eggs in 2007. In the past 50 years, the amount a chicken used for meat grows each day has increased by more than 300%. 2  Chickens in the meat industry typically spend their lives confined to warehouse-like buildings, each packed with as many as 20,000 chickens.