Never really thought about this before, but from my own experience, I would say not. Two of our banties regularly went broody, and proper broody (you would not dare put your hard anywhere near them!) every summer, even just before we lost them at 15 and 16 years old. This year, my elderley black rock has gone broody, and she is no longer a great egg layer - there again, she has probably seen all the other broodies in a line clucking, and decided to join them.