Is Jed off of White Fang a dog?

In the movie, the dog who played White Fang (there were actually 2 dogs that played White Fang) but the main dog they used, Jed, was actually a mid-content wolfdog (to be exact, around 35-49%).

The other dog they used was a low-content wolfdog, which meant he ranged anywhere from 34% wolf and down.