My 6 week old today keets have graduated from the tractor to the coop and run. I have 3/4ths a bag of 20% Purina left but need to plan early for getting my next bag. Plus the 21 birds are going through feed faster and faster. One source told me to reduce them (specifically Jumbo guineas, which they are) to 16% at 8 weeks. This seems a hair fast to me. I know too much protien is bad, but what do other sources suggest for meat guineas??