These hens are also debeaked, but since they live longer than broilers they undergo the process twice. Laying hens are cramped into cages stacked on top of each other to maximize the number of birds living in a shed at once. The cages have sloping wire floors for efficiency since any eggs will roll forward, and excrement will drop downwards for easy removal. The slope of the floor makes it uncomfortable for the hens to stand, and the wire floor often cuts the hens' feet. Since there is very little room for movement, the skin on the hens' feet often grows back around the metal wiring.
Pigs are intelligent, aware creatures, with and intellect comparable to that of dogs.
However, in factory farms pigs spend their lives in intensive confinement. Instead of feather-pecking and cannibalism, pigs resort to biting each other's tails. As you can probably guess, farmers respond to this behavior by cutting off the pigs' tails. Their offspring are taken from their mothers at three weeks of age and confined until slaughter.