What a great idea! I know this question will show my lack of knowledge, but I am learning since our chicks are only 3 weeks old. If I plant wheatberries, millet, etc. under screens like this, what portion of their feed does this represent? Would the wheat seedlings represent wheat/carbs? If they are not growing long enough to go to seed, then are they getting much nutrition from just the green, leafy growth? Can you replace a large percentage of feed by doing this?