Thanks so muchOyster shell keeps forever. Just keep it clean and dry. Your girls will go through about 35-40 lbs a year if they chow down on it like my big Orps do. Their eggs are very thick, and hard to break, but chicks don't seem to have a problem getting out. Hens seem to go through times when they don't eat much of it, and then chow down when they need it.
![Smile :) :)](/styles/byc-smilies/smile.png)