Chengling Heishan pig is Anqing white willow pig. Formerly known as Taihu White Willow Pig, commonly known as Liuhua Pig. The main producing areas and producing areas are in Taihu County, Anqing City. Named for its black body and white forehead, tail and lower limbs. It is a variety of livestock and poultry genetic resources protected by the state. According to historical records, as early as 2000 years ago in the Western Han Dynasty, this pig breed was raised in Taihu Lake area.

Anqing white willow pig has the characteristics of strong disease resistance and green feed tolerance. The modern breeding pig farm in Wangjiang County, Anqing is the only state-level breeding farm of pig breeds in Anhui Province, which belongs to rare and protected pig breeds.

Variety source:

According to the investigation, white willow pigs are produced at the intersection of North China pigs and Central China pigs. The sources of pig breeds are complex, including black pigs from Hunchun and Yingshan in Hubei in the north, plum pigs from Huangmei in Hubei in the west, and Pengze and Poyang pigs from Jiangxi in the south.

Historically, there was a habit of crossing northern black pigs with Poyang flower pigs. After long-term careful breeding management and strict breeding by working people, it has bred excellent local pig breeds with six white characteristics, which are resistant to green roughage and strong disease resistance. With the intensification of industrialization, there are basically no captive pigs in rural areas, which led to the endangered situation more than ten years ago. However, in recent years, with the vigorous protection and expansion of species, the number has gradually increased.