breed reported in geographic location Chengkou Mountain chicken, China (Chicken) https://www.fao.org/dad-is VBO:0006665 The concept of “breed reported in geographic location by FAO National Coordinators” is unique to DAD-IS (https://www.fao.org/dad-is/en/). This VBO term should therefore be used specifically for the breed conforming to this concept. Chengkou Mountain chicken According to Chengkou County annals, Chengkou Mountain chicken had been raised as early as in the Daoguang period (AD 1844) of Qing dynasty in Chengkou region where the traffic was blocked. This breed is formed after a long-term selection and development by local farmers. domestic breed Chicken breed Sabrina Toro