André Ford designed a sort of matrix for chickens:
As long as their brain stem is intact, the homeostatic functions of the chicken will continue to operate. By removing the cerebral cortex of the chicken, its sensory perceptions are removed. It can be produced in a denser condition while remaining alive, and oblivious. … Food, water and air are delivered via an arterial network and excreta is removed in the same manner. Around 1000 chickens will be packed into each ‘leaf’, which forms part of a moving, productive system.
The philosophy behind the proposal:
I think it is time we stopped using the term ‘animal’ when referring to the precursor of the meat that ends up on our plates. Animals are things we keep in our homes and watch on David Attenborough programs. ‘Animals’ bred for consumption are crops and agricultural products like any other. We do not, and cannot, provide adequate welfare for these agricultural products and therefore welfare should be removed entirely.