Thanks for the advice.
I recently graduated her to regular mice. She was hatched in September 2013, so she is not really a baby anymore. I like to put her in a 5 gallon bucket to feed her. I play a little tug of war and then leave her alone for 10 minutes. She usually eats it or drops it by then. Her enclosure temps and humidity are within nominal ranges.

I will try again in another day or two and make her eating area dark after she kills. I will let you guys know if she takes or refuses again.