I keep reading that layers should have 16% protien, and that higher levels of protien (like in starter) are not good for them. Why? My girls free range, and eat TONS of protien...I just watched them playing chicken football with a glass lizard (poor little guy)...and they LOVE grubs and other bugs. They all look super healthy and nice and shiny and fluffy. I also hear that salt is super bad for them, but then I am reading that some people add it to their feed mixes. Can someone please set me straight?