Another question if you will allow me please.
At what age should I offer mixed grit to my chicks? They are 9 weeks old ( Wyandottes and Cream Legbars : LF) but quite big for their age, now living out in a grass run, locked in the hen-house at night. They are healthy and very active but there is no natural grit in their run.
Is it time to offer mixed grit and oyster shell?