Interesting. George, are you referring to the twin bull calf, or the sire of the twins? I know there has been research on twins at that place in NE which was under fire from HSUS and others of that stripe for the "abuse" of those poor cows having to have twins and such nonsense.
For us, twins are a mixed blessing, as the less we have to care for, pen up, or otherwise handle new calves, the better. That is the job of the cow! We do watch over the March calving heifers more intensively, but the cows really should do it on their own, unless severe weather interferes, which it shouldn't, but can do, in our May calving preference for cows. Personally, I'd like it to be June, but fear the extremely hot weather we can get then.
mrj