Just some additional info.So, I added a side dish of calcium to the grower feed.
I give ALL the egg shells back to the chickens. Some peeps dry, and bake , and grind. I just drop on ground in run and crush with my shoe. Have done it this way for over 20 years. (that is how long I started to keep pet chickens) Mom, back on our homestead did same way 60 years ago.