lethargic 3 day old chick

[QBird]

yesterday my 3 year old Ayam Cemanis were zipping around, eating & active (I have 2)
Today one isn’t walking, weak & seems lethargic. I’ve hand fed it egg yolk & sugar water mix. He seems ok except physically won’t or can’t move. I have both chicks in a brooder but separated by partition so the active one can’t trample the weak one.
I don’t know what else to do to help it.

 

[Isaac 0]

How is your chick doing? Have a few pictures of her?

Especially when one orders from a hatchery, there tends to be one that is a "failure to thrive' or runt chick. There's not much you can do besides providing supportive care, which would include, keeping the chick warm, making sure the other chicks aren't bullying her, and offering the chick warm soupy feed, or scrambled eggs often. With these types of chicks, I tend to drip a drop of a poultry vitamin along their beak a few times a day being careful not to aspirate the chick.

 

[Wyorp Rock]

yesterday my 3 year old Ayam Cemanis were zipping around, eating & active (I have 2)
Today one isn’t walking, weak & seems lethargic. I’ve hand fed it egg yolk & sugar water mix. He seems ok except physically won’t or can’t move. I have both chicks in a brooder but separated by partition so the active one can’t trample the weak one.
I don’t know what else to do to help it.

Can you posts some photos of the chick and it's poop?
Do you notice any swelling of the legs, joints, etc.?
How warm is your brooder?