I work at my University's dairy farm and we have a first calf Holstein heifer that has been having some trouble calving. She is a decent sized heifer, not overweight, healthy. She has been in a labor for about two days. Vet went in and the calf is in normal position, and not partway out or anything, just hanging out inside still and still alive. Calf is of normal size as well. Today she really wasn't doing well, laying right out on her side, head and legs straight out. But tonight we got her up and took her a couple of (slow) laps around the barn and got her nibbling and drinking. She's only two days overdue. Her twin calved two days ago, no problem. At home I've never had any calve this long and hard, and I was just interested in hearing about everyone's experiences, how it turned out and why this might be happening.