All of Purina's gamebird food bags say..."chow" on them. There should be a tag on the bottom of the bag. If it doesn't, you can still use it. The Purina brands range from 22% to 30%. Next time you purchase a bag, get one with a tag on the bottom of the bag.
I stand corrected...the Maintenance feed is only 12.5 % protein and the Layena is a 20%.
The Startena is 30% and the flight conditioner is 20%.