What the meat industry figured out is that you don't need healthy animals to make a profit. Sick animals are more profitable... Factory farms calculate how close to death they can keep animals without killing them. That's the business model. How quickly they can be made to grow, how tightly they can be packed, how much or how little can they eat, how sick they can get without dying...We live in a world in which it's conventional to treat an animal like a block of wood.