Well, in the spirit of the Circle of Life - mom gave me a call around midnight to let me know one of our other females delivered 2 healthy happy babies a few hours earlier. A pink white and standard male. These are the same parents that produced my PW male that took Champion White at nationals this year!
This is such a relief - having two bad litters to start off the year had us thinking there may be a problem with our feed, but now we can chalk it up to an awful coincidence.