Teaching a baby who only nurses to take a bottle???

I have a baby that is 2 and a half months old, I nurse her and feed her a bottle about 1x a week, she recently has refused to take it, I finally got 3 ounces down her this morning after 4 hours of screaming on and off, I've tried 3 different types of bottle , avent, the normal and playtex, she was taking advent fine... how can I get her to take both, it is pumped milk so it has nothing to do with formula... she just tastes the bottle and starts screaming. Have also tried having husband feed her bottle. Any suggestions?