What's left of the leg from the hock down will almost definitely auto-amputate.
The red line is the area where the flesh will likely separate off. The yellow line is what the stump will most likely look like once fully healed. She may end up keeping the space between the yellow and red lines...
Wet or dry doesn't really matter, but dry necrosis is arguably better since it separates more easily from healthy flesh (instead of being attached by fleshy "strings") and because dry necrosis typically doesn't give off much of a smell, so it's less likely to attract flies. Dry necrosis is what...
Sometimes they smell and sometimes they don't. Typically it only smells if there's pus involved, since that's the active "decay" and gives off that horrible smell. If it's dry necrosis (like this seems to be) there usually isn't that much of a smell, if any at all.
Don't beat yourself up over...
So, a few things. If you haven't already, stop feeding her bread. This can swell and mold in the crop and cause sour crop and bacterial infections, which would open up a whole other can of worms. She should be getting her normal feed and one scrambled egg per day with nothing added.
If you need...