I came across this older thread and was wondering if anyone gives Bone Meal to their girls? I have one hen that in the past few months has been laying thinner shells. She used to lay nice hard ones. She is a good layer of jumbo eggs nearly every day. She may skip one day a week. Lately he shells have gotten thinner and more brittle. I was wondering if there is any supplement I could give her to get her back on track and strengthen her shells. The other hens and pullets have nice hard shells. She used to too. I was thinking about more calcium. They currently have dishes of free choice oyster shells but maybe they/she could use some added source of calcium. While I was researching I came across using Bone Meal and did a search.
https://www.backyardchickens.com/forum/viewtopic.php?pid=122270#p122270
https://www.backyardchickens.com/forum/viewtopic.php?pid=122270#p122270
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