Is this a reproductive disorder!

[aart]

I only offer her the tums mix. The crushed oyster is in a feeder and a fence hung container.

Is she isolated from the other birds? Does she have regular feed available at all times?
I'd not go too far with the supplemental calcium. In general they can draw enough calcium from bones to make shells for a good while. Toss some OS onto the ground, and/or sprinkle a few bits on top of feed, sometimes pullets don't 'get' consuming OS right off the bat.

but confused about why it would go from soft shell to shelless? Wouldn't it kinda go the other way around!

Depends on what you mean by 'softshell' and 'shelless'.
To me those are the same...no calcium deposited on membrane.

I'd not panic about this, it likely can't fixed pronto anyway by adding a bunch of stuff to her diet, just be patient. Have had many pullets lay a number of softies in the first month or so.

 

[Mybackyardpeepers]

Is she isolated from the other birds? Does she have regular feed available at all times?
I'd not go too far with the supplemental calcium. In general they can draw enough calcium from bones to make shells for a good while. Toss some OS onto the ground, and/or sprinkle a few bits on top of feed, sometimes pullets don't 'get' consuming OS right off the bat.


Depends on what you mean by 'softshell' and 'shelless'.
To me those are the same...no calcium deposited on membrane.

I'd not panic about this, it likely can't fixed pronto anyway by adding a bunch of stuff to her diet, just be patient. Have had many pullets lay a number of softies in the first month or so.

No she is not isolated, I personally sit there and let her eat it. They have two huge feeders of all flock crumble throughout the day. No they are literally soft shell and just the membrane, yolk and whites. What is the dots on the yolk mean by chance?

 

[aart]

What is the dots on the yolk mean by chance?

There is 'dot'(blasto disc) on all yolks.
They are usually small, these look larger but not necessarily fertile.
I am not conversant enough to fully explain, but @Ridgerunner is.

 

[Ridgerunner]

There is 'dot'(blasto disc) on all yolks.
They are usually small, these look larger but not necessarily fertile.
I am not conversant enough to fully explain, but @Ridgerunner is.

@aart you give me too much credit. I certainly cannot fully explain but I'll try a bit. I could be wrong on part of this.

That spot on a yolk is the ovum (female sex cell with DNA) and enough nutrition to support the fertilized embryo until it can get hooked up right to absorb nutrition from the yolk and white. All eggs should have that. It takes a while for a fertilized embryo to send out blood vessels to start getting nutrition and do what it needs to to survive. So call it start-up kit in case the ovum is fertilized.

If the ovum gets fertilized by the sperm the egg still has about a day to go through the hen's internal egg making factory and it is around incubation temperature (technically a bit above). So the embryo is developing at a normal pace after fertilization but before it is laid and cools off. That ring around the blastoderm that makes it look like a bull's eye is the by-product of the use of nutrition while it is developing.

Probably more info than a lot of people need. I personally find it fascinating.

 

[Mybackyardpeepers]

There is 'dot'(blasto disc) on all yolks.
They are usually small, these look larger but not necessarily fertile.
I am not conversant enough to fully explain, but @Ridgerunner is.

Ok great thanks. I have no roosters with them.

 

[Mybackyardpeepers]

@aart you give me too much credit. I certainly cannot fully explain but I'll try a bit. I could be wrong on part of this.

That spot on a yolk is the ovum (female sex cell with DNA) and enough nutrition to support the fertilized embryo until it can get hooked up right to absorb nutrition from the yolk and white. All eggs should have that. It takes a while for a fertilized embryo to send out blood vessels to start getting nutrition and do what it needs to to survive. So call it start-up kit in case the ovum is fertilized.

If the ovum gets fertilized by the sperm the egg still has about a day to go through the hen's internal egg making factory and it is around incubation temperature (technically a bit above). So the embryo is developing at a normal pace after fertilization but before it is laid and cools off. That ring around the blastoderm that makes it look like a bull's eye is the by-product of the use of nutrition while it is developing.

Probably more info than a lot of people need. I personally find it fascinating.

Thank you, actually it is fascinating! So even though there is no rooster that dot will still be there, what was that cord hanging off the last shelless egg she laid?

 

[Ridgerunner]

That is the chalaza. It's basically a spring that keeps the yolk centered in the egg instead of letting it sink to touch the inside of the egg shell. Since the egg shell is porous, the yolk might stick to it and dry out if it touches.

 

[Mybackyardpeepers]

That is the chalaza. It's basically a spring that keeps the yolk centered in the egg instead of letting it sink to touch the inside of the egg shell. Since the egg shell is porous, the yolk might stick to it and dry out if it touches.

Sorry for the ignorance, why was it on the outside of the egg then? I have seen these on other egg problem posts but never in real life.

 

[Ridgerunner]

Sorry for the ignorance, why was it on the outside of the egg then? I have seen these on other egg problem posts but never in real life.

I don't think the pullet has worked the kinks out of her internal egg making factory yet. Give her another couple of weeks.

Too me it is amazing how many actually get it right to start with, it's a petty complicated process.

 

[aart]

@aart you give me too much credit. I certainly cannot fully explain but I'll try a bit. I could be wrong on part of this.

I remember you explaining/discussing the larger blastodisc in the absence of a cock/erel.