i noticed something like this when i would give them to much cracked corn ..i started mixing a little feed pellets to the grain and they tend to lay 4 eggs every day after that ..my 4 girls are pretty productive and i get 3 to 4 eggs everyday since they started laying ..only when theres something stressing them like a preditor around at nite would they stop laying but even then i would still get a couple eggs ..so you are prolly right ,to many carbs maybe the ticket..i now only give them scratch treats when i get my 4 eggs ..its kind of turned into a game with them ..i get 4 eggs they get scratch with feed pellets and grit tossed around for them..i also noticed i only get 3 eggs on the day after that i give them lots of salad left overs..i think the feed keeps them laying regular..i am getting ready to start letting my girls out in the new trackter i built and it will be intresting to see if all the new bugs and grass they eat will effect their laying..A cautionary tale for those who are tempted to love their chickens a wee bit too much and/or are having problems with egg production:
Every Friday a client gives me all the bread from her "meals on wheels"....she doesn't eat bread being diabetic. Every Friday the chickens greet me at the car door looking for bread, which I happily throw out on the lawn for them to peck at til their lil' hearts are content. Every Friday I collect 6 - 8 eggs.
Every Saturday I collect 2.
Every Sunday I collect 4.
Every Monday - Friday I collect 6 - 8.
Ya think maybe, just maybe, the breeds of chickens I have are put off laying when they have too many carbs?