I purchased a dogo female 2 years ago for breading purposes have never got a pup out of her. been breed to 4 different males no pups. Have decided to use her for a catcher so far no problems.straight ear no regrip no dog aggression. She's about 80lbs very athletic. I've got two more from a friend they have 1/16 american the rest dogo they are 10months old the male weighs around 100 lbs . Female isn't as big both are hog crazy. Very smart dogs. Don't see them being very good in heavy brush to big. As far as catching and holding a hog I can't see were a bulldog has the advantage.
Buddy of mine had the same problem with his female. Hooked her up to my males a few different times & she never took. So he took her the vet and had the vet out the stuff in her & she took.