I realize this thread is a little old but I am still new and this is something I have been debating for a couple weeks. My chicks aren't even here yet but we bought just the regular chick growth/starting crumbles because that is what the feed store offers them and I was unsure if they could get tummy upset from a dramatic change in food (like dogs and cats can). But I was thinking of switching them to the organic layer formula when they were old enough. I have 5 chicks coming but I'm thinking that I will only have 3, since we are only allowed 3, but I ordered 5 incase we lost one or two. So I think spending an extra $10 on feed won't be too hard.
My question is if you feed the organic feed than technically don't you have to feed organic scraps to them too? Also do they eat less of the organic compared to regular feed? They really won't be getting much free range time, just time in their run, because of town laws they can't be allowed to free range. So the bulk of their diet will be pellets and whatever scraps I give.
Scraps don't have to be organic unless you were aiming to be certified organic. The only real issue with switching food that comes to mind is maybe a couple days where they refuse to eat much. But they are chickens, and they will eat when they get hungry. When I got my hens, and I got them from people who fed them regular pellets, I gave them Scratch and Peck mash grains. They did not object at all to the sudden change and much better rations.
One thing I do recommend is picking greens for them.... especially dandelions. They love dandelions!