Most easy way to check the temperature inside,,, is with a people thermometer.
Maybe your reading is incorrect?? :idunno
I'm not familiar with the incubator you have.
Can you insert a small light bulb, like a 40watt incandescent type to raise the temperature inside??
Such a light bulb can be...
The chickens' leg can be sprain from a possible fall from roost.
Not sure how your coop, and roosts are situated.
A common mistake peeps make, with placement of roost,,, They place roost way too high for the floor space below,, to allow for a gentle glide down. Result,,,,, is a vertical...
Chickens just like humans, can be at different stages of health,,,, and there is not much to be able to correct that. (in chickens).
Of course in us humans, we try every effort to heal our conditions.:old
From what you describe,, you are doing things correctly.:thumbsup
WISHING YOU...
I just answered another person with a similar chicken leg issue.
Here is link, to my response. Easier than writing the complete story again.
https://www.backyardchickens.com/threads/broken-leg.1687012/post-29098937
WISHINGY YOU BEST,,,,,,,,,,,,,,,,,,,,, :hugs
I do not have a definite answer,, but do have an idea worth considering. Get a Chicken Sling, (or make one) and figure out a way to keep hen in there for much of the time. Can eat, and drink while in there.
You may be able to suspend her but need to get creative with what it would take.
I...
I run across interesting information on a regular basis.
BTW,, this was before my time. I recall ice cream used to be served between 2 wafers. I think it is still common that way.