Had a heifer born yesterday to a big cow, its her 4th. Appeared to be normal labor, about 1 hr. Calf is 85# so not too big. When she came out she was covered in meconium, I mean all over. So she was stressed at some time but wondering why? She is up and nursing, but wondering about her lungs or any other side effects to look for. I have never see that much on a calf before. Ideas welcome!