Sounds like a good partial solution for now, keep an eye on them, all very good comments, good learning time...yes meat and eggs great protein for them...I am giving mine some leftover turkey meat from Christmas and black oil sunflower seeds (meal worms may help too) and mine just started laying again. Every day I give them something or other to keep them busy, and make sure they are out and about even in the snow. Scratch, hay, straw, something to forage for...greens, treats, sprouts, flock block. etc.
Honey mixed with blue food dye may help...