speaking from the perspective of someone who has worked extensively with purpose bred animals--in a vivarium with mice bred for making transgenics, as well as a few years with zebra fish and fruit flies, with the deaths of many hundreds of innocent mouse babies whose necks I broke on a daily basis and had to drown them with CO2 as that is the federally mandated "humane" way to sac a mouse--I must say that you are full of shit.
When we raise animals for research purposes--cancer, disease, whatever, we are extremely careful to ensure at every level that these animals are not tortured and receive as much respect as they can get when being used to sacrifice themselves for what we consider a noble purpose.
When it comes to our animals purpose bred for food, I see no reason to bring them into a tortured life, let alone crowd them into terrible conditions for the sole purpose of making the process more efficient in cheap--especially when you consider that cheaper and cheaper meat is not necessarily a "good thing" diet-wise.
