Humane laws for the transportation/treatment of food animals is in the process of being updated...I hope the standards will be massively improved as thousands of animals die in transport every year. And as for what we are giving food animals to eat, as recorded by Marion Nestle in her book "Pet Food Politics", contaminated melamine pet food got into the human food supply once it could not be used by the pet food companies. Pigs and chickens were given it to eat and nothing was done.