Some of you really make a science project out of keeping chickens for fun and "free" eggs ...
I have been raising chickens (no rooster because of local law) for about 6 years now, and never changed the way I feed them after they are outside in their run and coop.
I feed them "Layer Crumble, 18%" and water, year long. Once and a while I sprinkle oyster shell in the run and the hens go find it by scratch feeding. They also get our food left-overs, such as the vegetable scraps humans do not want to eat, leftover rice, watermelon ends and fruits in season.
The Layer crumble is made by IFA a local manufacturer here in Utah.
The hens lay like there is no tomorrow and around the cold season after they moult, they slow down to a halt and then start up again in early spring.
I have 6 chickens (regulated by local law, can not have anymore!!) and I have enough eggs every week when they do lay to supply all our 5 kids and their family.
To be frank, I do not know which kind of chickens (they look like plain old brown chickens) I have but I do know they have dark brown feathers and all the eggs have brown shells. They "live" in a coop and run created to house 9 chickens, so they have plenty of ground to roam around in! (We did have one white chicken but she was so mean, we had to do away with her)
So ..., what makes it so complicated to feed chickens?