chickens not laying
I would take out the corn or add more protein(game bird feed, meat bird feed, feather fixer, soybean meal) because the corn drags down the protein level in your feed more to 14% or lower, why did you beak your birds, not judging just want to know why(I know the purpose but want to know why you made the decision to have it done)? they could have stopped for a variety of things but stress is usually one, as is too low of protein, did you have a predator come around because scaring them can also halt their laying.
that makes since, I don't believe in beaking birds, but if it did get bad enough I might resort to beaking. They could have been attacking each other because of space issues, what kind of coop and run do you have( like dimensions)