had a heifer calve ok on her own out in the field, thats the good bit then she just abandoned it didnt want to know? Got mother and calf into yard and mother into crush calf sucks all right, but mother still dosnt really want to mother it? Ive had it a few times over the years, most happens when you have a slight difficult calving with the heifer and have to help, but not when all happens naturally with no interference, whats others experiences its like trying to graft another calf on to it?