More advice from the doc about fat chickens.
Well, just palpate the other birds, you can tell if they are “over-conditioned” by their bellies, they will be firm and poochy ( like beer bellies would be on a bird), that is the fat buildup inside. If they are flat and soft then they may indeed be ok. Dominant females can definitely eat the majority of the feed and get fat, so that may be the case with that bird. She was really beautiful though! too bad.. so if the others are not really fat, then you might be fine with what you are doing and it very well may have been a single bird issue. The others will eat a lot more now, so watch them for signs of egg binding and yolk peritonitis (lethargic and squatting like they are going to lay an egg for a long time and nothing happens). I will get you a final report tomorrow after I review the slides to be sure nothing else was going on.
Great information, thank you!!