One day my dairyman boss told me the following: The average cow's pelvis is not equally wide and deep, and many hip-locked calves will slip out easily if their bodies can be turned 90 degrees.
ILLUSTRATION: MOTHER EARTH NEWS STAFF
The first stage of bovine labor (dilation of the cervix) generally takes up to six hours or more, while the second stage (expulsive) occupies up to another six hours. The time span from the moment the feet appear at the vulva to the emergence of the tongue and subsequently the nose will seem interminable if you don't know that it's quite normal. Give the cow a chance to deliver her own baby.
MOTHER EARTH NEWS STAFF