I think they forgot to mention this at most of the dystocia seminars.
http://beefmagazine.com/calving/calving-checklist-everything-you-need-know-have-calving?page=1
http://beefmagazine.com/calving/calving-checklist-everything-you-need-know-have-calving?page=1
In assisting a dystocia, good lubricant is a must. Callan explains there are two kinds. One is carboxy methylcellulose, an OB lube that comes in a 1-gal. container and costs about $15. He says it works best if a half-gallon of hot water is added to the gallon of lube.
"You can use a stomach pump and stomach tube to put it directly into the vaginal canal and uterus. Diluting the carboxy methylcellulose with hot water makes it easier to pump in, and warms it to body temperature," Callan says.
The other type of lube (polyethylene polymer), J-Lube, is inexpensive, comes as a powder, and is convenient — you just add warm water. "One of the lesser-known things about J-Lube is that it can be fatal if it gets into the cow's abdomen. If there's any chance the cow will need a C-section, don't use J-Lube," Callan says.