Payback feeds or Nutrena layer
I use payback layer and regular feed oats free choice. People rave about the taste of the eggs. The hen's seem to do very well and payback is a lot cheaper up here. If you have a local elevator that sells it check into seeing about a discount or membership which makes it cheaper yet. You can go online and compare the feeds as well.
I also always have a thing of oyster shell available I plan on staying with the payback
I start my chicks on nutrena because I can get it in crumbles and did use layer for the first year got to be cost prohibitive with over 100 hens and misc roosters. I think we are about 12.00 for a 50 lb bag of payback.
http://www.paybacknutrition.com/poultry.html http://www.nutrenaworld.com/products/poultry/index.jsp here are their main poultry feed websites.