I've seen a video of such a hen and it was disturbing. We've changed nature so much that people think things like this are meant to be. And to be honest, until reading about what you mentioned, I thought so too. This just changed my perspective about these things. To think that we've manufactured animals so that they can grow fat so that we can eat them. Development in civilization? Yes. Should we be proud of it? No. I'm starting to understand veganism a lot more now. Thank you FellatiousD for the information. (I'm not being sarcastic, seriously).