I don't see much difference between killing chicks after them being born, or stopping them from being born in the first place. The only difference is in the efficiency of business operations.
If my values are that each deserves a chance at a life--whatever life it may be, I can advocate for searching for a better solution. I did not prescribe an alternative, don't pretend that I have.
EDIT: Damn, the hostile responses (Ad hominem, bad faith arguments, etc) to such a simple philosophical discussion I've been getting are unbelievable. I don't think there is much value in participating anymore. Thank you everyone for your responses.