Still Weak Eggs!! Help!

[nstratman]

I have fed oyster shells, spinach and egg shells. The eggs are still weak from my 2 year old Barred Rock.
I have actually padded the bottom of the nesting box since I heard she may be standing up to lay her eggs. Regardless, the eggs are thin and cracked every day. She lays 5 times a week and they are all thin.
She does free range and I do give her garden and table scraps. She is on 16% feeder pellets.
My younger hens have started laying really hard shelled eggs.
I've tried it all. I'm frustrated. Help!

 

[Yay Chicks!]

Here's an article on thin shelled eggs that might give you some idea of why this is happening. Hope it helps. If I get a cracked egg occasionally, I usually just hard cook it and feed it back to them.

http://www.thepoultrysite.com/publi...ndbook/16/thinshelled-eggs-and-shellless-eggs

 

[nstratman]

unfortunately I think my hen has a deficiency.