Most of the eggs that are consumed are infertile. However would eating eggs from certain farms would increase kills (brutally slaughtered because of their little value) of the male chickens (cockerels)? Does it happens on free-range also?

If so, how do I know, and how to avoid that? Is there any extra label information which provides such information?

I'm interested mainly how it's in EU countries (however situation in U.S. can be also included).