Shell less Eggs and calcium deposits on eggs

[porokelle]

Hiya,
We've got a 3 year old lowest on the pecking order (looks like a runt at this point) Orpington hen. She's been laying multiple shell less eggs over night one night last week and last night. Other girls are laying correctly.

I understand there's a myriad of reasons for shell less eggs, but she also has weird eggs on normal days (image). The eggs are thin with huge amounts of calcium on the outside and powdery calcium on the inside.
Does this give us any idea of what could be causing the issue? We have other girls that have a tiny amount of this calcium buildup, but not much and not all of them.

She's coming in for a few days so we can baby her no matter the cause and give her additional calcium pills.

The only other thing to mention - is one of the other girls has been sick for about a year now - and by sick I mean has bubbles in her eyes. We've worked with a vet trying about 6 different meds, and nothing has worked. All other girls have had bubbles in their eyes from time to time - including this one with the shell less eggs. But it's maybe once a month for her.

 

[U_Stormcrow]

Someone may summon me to this post because I know a bit about chicken feeding and nutrition. I'm going to proactively answer "I don't know". Off the top of my head, there's no vitamin excess or deficiency that would cause that, and my limited (entirely anecdotal) experience is that a couple of my hens have produced very similar eggs, consistently - in spite of same grounds, same feed, same management practice as all my other (mutt) birds.

I choose to assume it specific to an individual bird's plumbing and the randomness of the genetic lottery.

But I may be publicly celebrating my ignorance with the above.

Good luck!!!!

 

[porokelle]

Someone may summon me to this post because I know a bit about chicken feeding and nutrition. I'm going to proactively answer "I don't know". Off the top of my head, there's no vitamin excess or deficiency that would cause that, and my limited (entirely anecdotal) experience is that a couple of my hens have produced very similar eggs, consistently - in spite of same grounds, same feed, same management practice as all my other (mutt) birds.

I choose to assume it specific to an individual bird's plumbing and the randomness of the genetic lottery.

But I may be publicly celebrating my ignorance with the above.

Good luck!!!!

Thanks. I understand it might just be here (we have another girl that lays multiple at the same time - just how she is), but thought I'd give it a post just in case anyone else has seen similar and found alternate solutions. She was def not feeling great until she laid it an hour after bed (we popped a webcam in there to check).

 

[Jenbirdee]

Hiya,
We've got a 3 year old lowest on the pecking order (looks like a runt at this point) Orpington hen. She's been laying multiple shell less eggs over night one night last week and last night. Other girls are laying correctly.

I understand there's a myriad of reasons for shell less eggs, but she also has weird eggs on normal days (image). The eggs are thin with huge amounts of calcium on the outside and powdery calcium on the inside.
Does this give us any idea of what could be causing the issue? We have other girls that have a tiny amount of this calcium buildup, but not much and not all of them.

She's coming in for a few days so we can baby her no matter the cause and give her additional calcium pills.

View attachment 3971401

The only other thing to mention - is one of the other girls has been sick for about a year now - and by sick I mean has bubbles in her eyes. We've worked with a vet trying about 6 different meds, and nothing has worked. All other girls have had bubbles in their eyes from time to time - including this one with the shell less eggs. But it's maybe once a month for her.

No bubbles in my ducks eyes, but I do have one duck that lays eggs like these the shell is actually thin and then the calcium deposits on the outside. I had given her a lot of calcium, and I also see her eating the oyster shells. I discovered that she may have a D3 deficiency so I started giving her some infant liquid D3 0.25 ML and the deposits started going away.
D3 is critical to calcium absorption in humans so I thought maybe Ducks too