Q.How do I repair eaten off Cedar Tree bark?
We have a herd of Barbado (goat/sheep cross) that recently were starving for minerals and starting eating the bark off our cedar trees. The trees that were first stripped of their bark have started dying. Started using Prune Seal which works but with over 200 trees left to be repaired the cost of this Prune Seal spray is outrageous. Is there any other way we can repair the bark lose on these trees?

How much of the bark was chewed off? Were your trees completed girdled (damaged around 100% of the tree)? In this case you could try repair grafting or bridge grafting, which is explained in detail via the following link:
https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-fix-girdled-trees.htm
For more information on repairing bark damage, please visit the following link:
https://www.gardeningknowhow.com/ornamental/trees/tgen/repairing-tree-bark-damage.htm