Natural Bob Tail (NBT)

    The Natural Bob Tail gene is another gene occurring in the Pyrenean Shepherd breed. DNA TESTING NBT – UC Davis (Listed for Pyrenean Shepherds) RESEARCH & ARTICLES Ancestral T-Box Mutation Is Present in Many, but Not All, Short-Tailed Dog Breeds (Multiple Authors) Intro – Congenitally short-tailed dogs are present in many breeds; … We investigated here the presence of the T gene mutation in 23 other breeds (360 dogs, including 156 natural short tailed) in which natural bobtailed dogs exist. (NOTE: The Pyrenean Shepherd is referenced in this article.)