Ok so i have an 09 normal female. for the past two weeks she has been doing some weird things when being fed. hope someone can help me out. So last week i went to my local pet store for a rat fuzzy but they were out so i got a mouse and dropped it in. She struck and killed it however when it came time to eat it, it took her like 5 minutes to start eating. second issue is she started from the butt end of the mouse. she eventually figured out it wasnt going to work so she let go and seemed uninterested anymore. I left the dead mouse in her enclosure for about an hour to see if she would eat it but no go. So i tossed it and figured id try again this week. So today i went to the same pet store and got a mouse(out of rats again) and the exact same thing happened!! The breeder i got her from said she was started off on and fed rats all her life so do you guys think this weird behaviour is just because she prefers rats instead of mice and just strikes and kills the mice out of aggression?? any help would be greatly appreciated.

Mike