I am hoping someone can help me. One of my favorite EE hen is laying extremely soft shelled eggs to the point where it's just squishy and has no shell to it at all. She is a little over 2 years old. Is she not getting enough calcium or something? What could I feed her? I always give them 16% dumor layer pellets and right now give them some cracked corn too. They don't like oyster shells either. Any help would be greatly appreciated!