5-7 mice a WEEK!!!! I hope this isn't on a regular basis! If you read that you need to get your females on a heavier feeding schedule before she starts breeding, i doesn't mean that much! instead of one mouse per week, a heavier feeding schedule would be like 2 mice on monday, and 2 on thursday... And during the actual breeding season, you shouldn't be attempting to feed her that much. Most females won't even eat anyway, but you should only be offering small meals every couple of weeks during the breeding season, which they most likely wont accept anyway...