I'm going to chime in here too.
First thing in the morning I give the girls laying pellets which I try to make available all day. A couple of hours later I deliver a mix of chopped apples and bananas with their scratch. On cold days (a subjective term as those of you up North have a different idea of what cold is than us Southerners), I add in some mash and warm water. In return the girls regularly give me nice large, hard shelled, beautiful eggs with nice orange yolks.
All year they get whatever fruit and vegetables are seasonal. In the summer they will knock you down to get the watermellon from you and I do give them citrus. Not a lot, but if it's laying around and the kids don't eat it first it's fair game. I also have put grapefruit halves on nails for them to peck at.
Heck, even the wild birds eat citrus, we've been putting it out for years. And, no I don't steal their eggs so I don't know if I have slowed down their laying but, we have no shortage of blue jays, hummers, and cardinals.
I wouldn't just feed the girls fruit by any means but, as a treat I think it's fine and if I do say so myself I have some gorgeous birds.
Deb