Brownish yellow poop - without knowing exactly what you're seeing, that comes out of each of my calves on day two so I wouldn't worry. If anything, all the tubing might give her milk scours - it will look a little like runny sour milk.
I don't think the electrolytes would be necessary as long as you're tubing her with milk replacer as directed and she's not scouring too bad.
I don't think the electrolytes would be necessary as long as you're tubing her with milk replacer as directed and she's not scouring too bad.