what age do you start feeding chickens
1 Chick crumbs â Fed from hatch to 5 weeks old. Typically 19% Protein. 2  Growers mash or pellets â Fed from 6 weeks to 18 weeks. Typically 15 to 16% Protein.  Layers mash or pellets â Fed from 18 weeks as a pullet comes into lay. Typically 15 to 17% Protein.