Farmer Kitty, please add bloat treatment to your list, and pepto bismal and a (large) rectal thermometer on a string. Helps when you talk on the phone to the vet to tell him/her the temp of the critter.
I just found an older Hoards Dairyman book on heifer raising which is WONDERFUL GOOD. I should scan the whole thing for its info, but...for emergencies:
Here is a recipe for homemade electrolyte solution. I recall using this very successfully in the '70s when the concept of using electrolytes was in its infancy.
1 teaspoon low-sodium salt
2 teaspoons baking soda
1 package jam & Jelly pectin
1 12 ounce can beef consumme soup
Mix ingredients with warm water to make 2 quarts electrolyte solution
Alternatives: I used potassium salt found in the dietary aisle of the grocery store. Also Knox gelatin envelopes can be used in place of the pectin, and Karo syrup in place of the beef consumme.