When demand is reduced before quitting cultivation and has developed new species by breeding strains with the dog for the group in the year. In 1903, the original, you can see that this species has a black dog, but only after there is a development of later species cause yellow followed, which, it is generally accepted and valid according to the breed standard, or even a shock are also popular colors currently this breed dog in the hunt, then. Also used to make narcotics, explosive search and help navigation blindness too.