You have a guardian hunting breed who is approaching maturity. Issues with strangers are not surprising.
Are you sure he is a Dogo? Edit to add: i ask that because its common to see people think their large white bully breed mix is a Dogo and in typical behavior traits of a pit/bully type are different than a purebred dogo. What might be guarding behavior in one could easily be fear aggression in another. Or, I presume a Dogo that doesn't have the desired temperament for the breed could also be showing fear aggression.
What training methods have you used?
Do you know his parents and grandparents temperament?
What does your behaviorist suggest?
Keeping people safe is the first priority while you work to figre out what managment and training may be beneficial to you. A properly fitted muzzle, worn under supervision, is a good start. Assess your fencing, your door opening habits, etc for any risk of a stranger encountering your dog unsupervisor.
Are you sure he is a Dogo? Edit to add: i ask that because its common to see people think their large white bully breed mix is a Dogo and in typical behavior traits of a pit/bully type are different than a purebred dogo. What might be guarding behavior in one could easily be fear aggression in another. Or, I presume a Dogo that doesn't have the desired temperament for the breed could also be showing fear aggression.
What training methods have you used?
Do you know his parents and grandparents temperament?
What does your behaviorist suggest?
Keeping people safe is the first priority while you work to figre out what managment and training may be beneficial to you. A properly fitted muzzle, worn under supervision, is a good start. Assess your fencing, your door opening habits, etc for any risk of a stranger encountering your dog unsupervisor.
