If you can't get the calf to nurse...take that back, if you can't get mother cow to let it nurse, get more dried colostrum. Feed that baby the whole contents of the colostrum at least twice a day...even if that means break it up into 4, 5, 6 times a day...give that baby the equivalent of 2 bags a day no matter how many times a day the baby will take it. What the baby doesn't drink, put in the refrigerator and rewarm it and continue to serve it. However, if you can get the mother to let the baby nurse, that of course, is the best.
I'm sorry, I'm tired...been one long, long day...I hope I'm not confusing you. At least 2 bags of dried colostrum per day, no matter how many times you have to offer it to the calf. Do you know how to tube a calf? Dang ("be nice" avoidance again), I hope so.
Good luck.
Alice