[danofsteel32]

Egg laying chickens (layers) are very different from meat chickens (broilers). Layers have been bred to be lean and put their calorie surplus into producing eggs. Broilers have been bred to pack on weight as quickly and efficiently as possible. No one eats layer chickens they are usually turned into compost or pet food.

Source: My wife manages +100K birds on one of the largest egg farms in the US