Here at http://alargobohemia.com, we share all we know on Dobbermann. You will find this website highly informative.
The Doberman, or Dobe or Dobie, is a ‘young’ breed of dog, having been developed in the middle of the 19th Century by tax collector Karl Louis Dobermann. Travel at that time was restricted to going on foot or going on horseback, and some of the areas Dobermann went through as he collected money were subject to attack by highwaymen. Dobermann needed a strong, alert, and obedient guard dog to protect him, and set about developing a new breed of dog. By combining various shepherding dogs with a dash of Greyhound, Terrier, and Rottweiler, he ended up with the dog we know today as the Doberman.
Dobermans are medium-large, muscular dogs with very fast reflexes. They are also highly trainable, which has proven important in their work with the military, police, and in home protection. Dobes are also used as search and rescue dogs thanks to their finely honed senses.