They probably did know, that is why I reccomended a protein boost eggs have tons.
New layers that for whatever reason aren't consuming enough will reclaim the egg like crazy.
Just any price freindly meat, cooked of course. You can used canned stuff like chicken, tuna, etc.
To boost them into their new laying bodies i'd give them a small amount at least every other day.
Give it a week or two and see if they're still as ravenous.:)
Looks like a first'ish egg for sure.
They sound like they need more protein, when they hit POL it takes a lot to keep them going.
They're using much more than when they were simply growing.
Give those ladies some meat. :)