I have 14 wk old pullets that i have been mixing about 20 lbs of scratch grains which is 8% protein. to a 50 lb bag of grower feed and this is 19% protein. is this a good mix for them? they are really active and growing just fine, i just wonder if it will hurt their egg production because i have heard corn will hurt young pullets. i have been feeding them this since they were like 9 wks old. at 14 wks old now they are almost as big as my current layers of ISA-Browns and others. they are rhode island reds and barred rocks and buff orpingtons. and my neighbor above us fed his pullets just scratch grains, no chick starter/grower and his grew up real pretty and big and his lay eggs. is scratch really a no-no for pullets?