The dogo is an extremely rare breed. Dobermans and Shepherds are commonly found. This means they have more chances of inner-breeding. That is very bad for temperment and other health defects. They both tend to turn.
All dogs act the way their owner teaches though.
If you raise your dog to be gentle they more likely will, excluding any health factors. I wish you luck and hope some of this has helped. Dogos are very loving, protective and mannered dogs if trained properly. I may need to do more training myself but have seen many dogos at shows that prove this to be correct.