What to do if mother cow steps on baby calf?

This happens occasionally, unfortunately. Keep a very close eye on the calf and see if it has any damage like broken bones or deep bruises. Sometimes, although the mother's hoof made contact with the calf, she can pull her weight back and not hurt the calf. If there is trauma, you will need to keep the calf and mother alone until the vet can get there to see what can be done for the calf. If the injuries are severe, the best option may be to put the calf down.