Last night when I went out to feed Jody her bottle, I saw she had diarrhea (scours). I came back to the house, dumped the milk replacer down the sink, and filled the bottle with electrolyte solution... that's like Pedialite for calves. She showed no other signs of being sick, and took the bottle eagerly. I also gave her a scours pill. Calves can go down fast when they have diarrhea; these precautions were probably unnecessary, but I like to be on the safe side.
I have an ongoing battle with sparrows. They descend on the calf's feeder and eat like crazy, pooping and contaminating as they eat. So for now, I've been covering the feed unless the calf is actually in eating mode, or unless I'm nearby. Have I mentioned that I hate sparrows?
The more grain a calf eats, the less likely she is to get scours.
Jody is doing very well with eating grain, for her age... under two weeks old.