Yesterday I found my female albino breeder to be passed away, sadly fully pregnant looking like a golfball.
Guess she must have been a little bit older, because she was quite big when I bought her (from the feeder cage), but there have been no signs of any disease or weakness or anything.
Will miss her a bit cause she gave some goodsized litters over the past months, though her babies always turned out to have a little defect in hair growth, the babies of my other mouse always have been normal, so I guess it is no related to the way I keep them. Maybe because the Dad is some kind of half satin mouse (longer hair than normal) genetics went crazy in their litters.