My friends loved cooked oatmeal when they were stressed out for some reason with and watermelon with all seeds picked out, which was good way to get extra water into them too when they are stressed or injured
I would consider hot wiring your fence, and putting a game cam up, if it got through once it will most likely be back to try again. I'd be the one sitting out in the dark with gun making sure they didn't try it again though lol
you only want to give electrolytes 1 day, most important thing is...