We have been dealing with this with our Buf Orp since early April It seems that she has some disruption in her cycle that causes her to form the yoke white and internal membrane every 8-12 hours but not having enough time to form a shell. We boosted her calcium and added vitamins to the water and now about every 2nd egg she lays has a very delicate shell.If this doesn't stop in 1-1 1/2 months, she may have a disorder.
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