I am wondering if there is work being done on changing the brains of farm animals to increase their welfare levels without changing their environments. From what I know about the state of gene editing, it is possible to create smarter mice and flies that like cocaine, so it doesn't seem like that much of a stretch to make a happier chicken or silkworm. If you have any relevant information, please share!
I couldn't agree more. And yet... if the billions of farm animals could be engineered to have ridiculously high welfare levels, could that not overcome those very real concerns you point out? Has someone researched the welfare effects of the ancillary activities attached to farm animals?