My chickens is laying eggs with very thin shells. I suspect this is a dietary thing but I have never encountered it before. Advice, please?
Yeah, Whitney hit it on the head, oyster shell. Make sure you're feeding layer pellets as well. Since it's nearing molt, you can feed them the 22% protein to help with feather growth until they're done, then switch back to 15%.
I think bugs are the best, in the non-frozen months our shells are SO hard and I give it up to the exoskeletons! Also I feed back crushed eggs shells (so they don't look like eggs anymore)..and free range oyster shell crushed.