Thyrogenous Dwarfism in Poultry

I believe I have a chick with this type of dwarfism in my flock. I thought this article was really helpful. Can you estimate how young of an age they usually pass? Mine is 19 weeks old and I have separated her from the flock as she has been badly bullied due to her having a chick peep and not sounding like a grown hen. Any tips on how to care for her? She seems to be doing fine other than some bully wounds. She definitely has all the features you’ve explain but still seems very healthy otherwise.

I found this article to be quite interesting. I know that dwarfism shows up on various animals for some reason or other, but had not heard of it in chickens.
I have a question on it though. If dwarfism needs 1 gene from each parent to be a dwarf, how can one that carries 2 genes make all off spring dwarf? shouldn't the off spring be getting a gene from both parents to do that? If one parent is a non-carrier, shouldn't it pass on a good gene? that part I find interesting. Shouldn't the dwarfism carrier with the 2 genes only pass on one of those genes?
Crazy I know. and weird that if the parent is carrying 2 genes, why wasn't it a dwarf? The more we find out the more questions we have.
Still a very informative article, and I appreciate you putting it out there.

I never knew there was such a thing though I suspect I've encountered it before.

Extremely well written & very informative on an interesting topic. Excellent read!

I believe I learn something new about poultry every day, And this is a great example of something sad, but definitely good to know about. Very well written and informative article.
(Now I have to do more research on this and the other dwarfisms)

I have no interest in breeding but this was a fascinating read. It's amazing to see how genetics work, and how certain combinations of genes can produce harmful results without ever affecting the parent animal.

This is very good information to keep in mind for the future. While I don't keep the specific breeds mentioned, I've no doubt that this is a condition that could crop up in any breed, with the right genetics involved. Looking at the photos actually immediately reminded me of my Seramas - I'd noticed how apple-shaped their heads are compared to my other birds previously, and know that some lines are prone to extremely short legs. However, the other markers don't match, much to my relief.

I enjoyed reading this article. It was informative and well written.