The designation makes the breed eligible to compete for many best in show trophies, and it likely augurs more widespread interest in the small, sprightly dogs. The prospect both gladdens and concerns their biggest fans. ... Called the farmdog or DSF for short, the breed goes back centuries in parts of what are now Denmark, southern Sweden and some other European countries, according to the Danish-Swedish Farmdog Club of America. ... In their original homelands, the dogs’ main job was rodent patrol, but they also would herd a bit, act as watchdogs and play with farmers’ children. Some even performed...