Need help diagnosing mass embryo death

[CarpCharacin]

I wonder, could it be a Vitamin D deficiency?

https://www.ncbi.nlm.nih.gov/m/pubmed/3105832/

Are you reading scientific papers now?

 

[Cyprus]

Can't hurt, the eggs I used were super small so I was grasping at straws to at least have a few hatch. Were you serious, nobody has any Japanese bantams for sale?
Swear earlier this year everybody had them, a lot of them wern't very pretty though but they were around.

I haven't found anyone selling mottled Japanese bantams of decent quality.

 

[Cyprus]

Are you reading scientific papers now?

Not the ones you share with me

 

[CarpCharacin]

Not the ones you share with me

But I share the good ones!

 

[Cyprus]

But I share the good ones!

That's debatable.

 

[Kiki]

Two good links:
https://anrcatalog.ucanr.edu/pdf/8127.pdf


https://ufdc.ufl.edu/UF00008570/00001/1j


Your necropsied bird...wasn't it something like Marek's but you thought maybe Leukosis?

If that is in your flock that can be the cause of the deaths too.

 

[CarpCharacin]

That's debatable.

For a paper to get published in a peer-reviewed journal, it has to be at least somewhat "good". Meta-analyses are usually better than papers that only contain a single study, as a meta-analysis has data that's taken from multiple independent studies, and then is statistically combined.

 

[ShannonR]

My vote is for a genetic glitch somewhere. I have had this happen with inbred birds, not saying this is your issue at all but there are many genetic factors that could cause this hatch problem from a single hen.

 

[Cyprus]

My vote is for a genetic glitch somewhere. I have had this happen with inbred birds, not saying this is your issue at all but there are many genetic factors that could cause this hatch problem from a single hen.

I vote inbreeding. No history of disease in my birds for a while.

My pair is pretty much guaranteed half-siblings, possibly full siblings.
Still doesn't explain how I had an initial high hatch rate.

 

[ShannonR]

I can't explain the initial high hatch rate either. Maybe the youngsters are just more fertile?