Cat food has alot of protein, you can give them alittle bit of that every other day. Avoid the fish flavored ones though....they might make the eggs taste funny! mealworms and crickets are a good protein too. They will love you forever if you drop a few of those in the coop! But as far as protein goes, you can't do anything better than chicken! I know it seems wrong but the love it, and its good for them. Of course feed all the things in moderation.
I was dealing with a feather picking/eating situation a few weeks ago. I added manna pro conditioning feed to their layer pellets, it has 26% protein, I think.....even with that our barred rock was still eating the others raw. I went out one morning and she was actually eating their skin right off their backs...gross...soooo.....sadly, she herself got eaten...by us though lol
I was dealing with a feather picking/eating situation a few weeks ago. I added manna pro conditioning feed to their layer pellets, it has 26% protein, I think.....even with that our barred rock was still eating the others raw. I went out one morning and she was actually eating their skin right off their backs...gross...soooo.....sadly, she herself got eaten...by us though lol