Pullet not preening? Feather health tips?

[aart]

No, but I do believe it’s nutritionally complete. There are more than 15 ingredients (including mineral sources) plus they get varied treats and scraps. I cannot use most commercial animal feed products because I have wheat allergy anaphylaxis and can’t come in contact with anything that has been in contact with wheat. The other chickens seem to be doing quite well on this diet so far. But if there is a specific set of nutrients that help with preening I’d love to know! I feed blueberries to help my turtles shed but I don’t think it works the same in birds.

I do not know, I doubt it...
....but @ChickenCanoe knows quite a bit about the micro-nutrients.