Justagalwithchicks
Songster
Thank you for suggesting this- I also will be doing this in addition to my regimen.I have an idea. Perhaps this little gal is having an issue with absorption. Vitamin D is important for absorption and so is magnesium, but magnesium isn't very often added to feed. If you're feeding layer feed, look on the sew tag and see how much D3 and magnesium is in it.
If it's lower than 36mg magnesium, try giving her about that much each day as a supplement. Same with the D3, pop a 25mcg D3 oil cap into her each day for the next month and see what happens.
Then make sure she has easy access to oyster shell. If the additional D3 and magnesium doesn't improve her shells, then probably nothing will.