I don't notice mine more jumpy per-se, but they know that it's feeding day, for sure. I just drop the mouse on the opposite end of the enclosure that they are in, and the mouse is normally dispatched of in under 2 minutes (for my tub kids). Kashmire takes up to 20 minutes to snatch his prey. In that time, the mouse isn't really concerned with Kash, it's normally exploring the its new surroundings, grooming, etc.

Since I'm don't really have the space for breeding, I still purchase mice each week. I keep them in Kritter Keepers and I just bought a $20 mousie "condo" contraption from PetSmart that I keep about 10 mice in until feeding day. I buy mice the day after feeding day so that I can feed and water them for the week before feeding them. I also feel that gives them a chance to de-stress from the petstore experience where there can be up to 30 mice in a tank.