Baby Lamb problem?

My ewe had a lamb yesterday afternoon, and apparently while I was out. My donkey had scared off the momma ewe and when I got home, the ewe had acted like nothing happened, but the donkey was super interested in the baby. I moved Momma and baby into a pen by themselves, but Mom still doesn’t seem interested in baby and I don’t hit I baby has nursed yet. Will she accept this baby? It isn’t her first and she has raised babies before. Any suggestions?