Our pullets have been laying for a few weeks now, they are 23 weeks old. I have been giving them their egg shells once they are dried out. It isn't a lot, so I asked my mom and my daughter to save theirs (from store bought eggs) but now I am worried about giving them those. Thinking that since they are commercial eggs and are NOT organic, maybe the shells aren't so good for our chickens. What do you think?? I also posted this on the Facebook page b/c I could not post here for a bit.