Good question, how are you presenting them to her? I have tried all kinds of different ways and never had a problem except one week after a bigger then usual rat he didnt seem hungry the next week.
Anywho i have tried feeding in a seperate container and that worked no problem. I have also started keeping him in his viv and leaving him in his hide. The only thing i do differently to his environment is put a piece of shelf liner down over the aspen so i dont have to worry about him getting some ingested while he is swallowing it.
I thaw the rat out in really hot water so when i offer it to him it is nice and warm and as fresh as can be. Usually from the time i take it out of the freezer till the time i offer it its only been 45 minutes to an hour. Size of prey would differ the amount of time depending on defrost times.
So the rat is nice and firm still the outside temp of the rat is nice and warm. Then i take a pair of tongs and run it around in front of his hide a few times and whaam!! Done deal.
Only real picky thing i have noticed is that if i try to feed early evening no dice! He will check it out but no strike, ofcourse by that time the rat is all nasty and flimsy so i have to defrost anpother one. Err! The second rat is usually defrosted and offered around 11/1130pm and he strikes every time! He refused the first rat 2 times and after that i just waited till later at night and no problems since!
Sorry for the long post but hope it helps or stirrs some thoughts!
Good luck,
Mike
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Mike & Wendy 
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