She may have suffered heat stroke, that's quite hot temps to be traveling and going through the stress of a show.
I'd continue to work on hydration, alternate between giving plain fresh cool water and electrolytes.
I would still get the vitamins and Calcium into her as well. Hopefully she...
When was her last egg?
Where are you located in the world - has it been hot?
What do you feed?
I'd be inclined to get extra Calcium into her for week. You can find Calcium Citrate with D3 in the vitamin aisle of stores like Walmart, CVS, etc. Give 1 tablet daily, just pull down on her wattles...