Baby mouse -- chance of survival?
So I thought I'd pick up a mouse from the pet store. I've had them in the past. When I got home and looked in the box, though, it was a little fuzzy-- one of the feeder ones. Its eyes were shut tight and it was shaking a lot.
I've been feeding it kitten formula milk out of an eyedropper with a small curved tip. It didn't really like this at first, but now it puts its paws on it and its mouth around the tip to drink the milk. I'm not sure exactly how much to feed it, but I've been doing so every two hours except when I'm asleep-- I'm always worried that it will need food during the night but I sleep very heavily and physically cannot wake up every two hours to feed it.
After I feed it I have been trying to rub its tummy with a cotton ball. It has pooped a few times, but usually rubbing its tummy seems to do nothing.
One thing that really worried me is that all its fur started falling out. Just little patches at first, and then all over so that it only had a few scarce little patches of hair left. It looks like it might be starting to regrow a little, but maybe not-- I could just be imagining it.
Its eyes are still usually shut, but sometimes they will open for a little while and then he will keep them shut again afterwards. He is still shaky when he walks most of the time.
I've read online that raising a baby mouse like this has about a 25% chance of survival? I'm on my third night with him now, and when I talked to the pet store lady she was very surprised that he was still alive, but said he will probably still die.
When I am awake and not at work I usually keep him in my hand. He curls up and rolls around and seems to like it in my hand. When I put him back in his box he has stuff to cover up with but usually doesn't use it-- he will usually just sit on top of it and shake. It is fairly warm in my bedroom, though, but when I take him out he usually feels a little cold.
I was just curious if anyone had any insight on what his chances of survival might be, and how long I'll need to have him before I can rest easy that he's "made it". I don't know how old he is but he is very small.