Just in case you needed more proof, I looked up signs of protein deficiency in poultry. In chicks and poults (no reason to think keets are any different), feather abnormalities due to protein and/or amino acid deficiency include: "Uneven feather growth, abnormally long primary feathers, feathers not lying smoothly." Vitamin and mineral deficiencies (niacin) can cause "frizzled and rough feathers."
(Reference: Nutrient Requirements of Poultry, 9th ed, 1994. https://www.nap.edu/read/2114/chapter/9#49)
They should be on a turkey starter feed.
Good info!
