Feed bag looks like 'scratch grains', low protein and nutrition,
and not meant to be the main diet.
Amprolium is a coccidiostat, not a wormer.
Won't hurt them and has more nutrition but you'll have to supply some kind of calcium, like oyster shells, for the active layers.
Many of us feed a 'starter' or 'all flock' type feed(18-20% protein, 1-2% calcium) to our flocks with a separate feeder of oyster shell.