Black pigs have been domesticated in China for nearly 5000 years. Longyan site in Jiuchongtian, which is located in the southern mountainous area of Jinan, and Tuhai River Basin in Jiyang today are both important inheritance places of ancient animal husbandry. In the Compendium of Materia Medica written by Li Shizhen in the 6th century/kloc, there is a special "Zombie Family", which records the different medicinal values of different parts of black pig, which is very precious.

The Iberian black pig in Spain, which lives with the Tuhe black pig on the earth civilization line of 36 degrees north latitude, is one of the top ten delicacies in the world today.

However, due to the slow growth cycle and low weight, the annual black pig is only 65,438+0.50 kg, so the western white pig almost became extinct after it entered China on a large scale at the end of last century. Tuhe black pig is a rare protected population in contemporary times.