ChickyCh00k
Will Work For Chickens
I have 8 chickens and it *seems* like they don't touch the oyster shell - it lasts for a VERY long time, and I rarely see them eating it. But they DO eat it, and from what I understand, each hen will take what they need. You might still get a rubber egg here and there. Issues other than calcium deficiency, can cause it (like heat stress, new layers, other stressors, etc.). If you used flaked shell before, try crushed - or vice versa...Ok. Will stop adding grit then. Will start tryin oyster shell on side again

P.S. If your girls truly will not eat oyster shell, Scratch & Peck has a Limestone supplement as an alternative (but I've read calcium from limestone isn't as easily absorbed as from oyster shell).