Longyou Black Pig

Longyou Black Pig

The Longyou Black Pig is a geographical indication certification trademark.

　　The Longyou Black Pig is primarily produced in Longyou and Zhangshutan areas in the eastern part of Quzhou City, Zhejiang Province. The eight communes of Zhanjia, Anren, Gaojia, Lianhua, Lantang, Mohuan, Longyou, and Sihou serve as key breeding centers, among which the pigs from areas such as Longxingdian, Zhanjia, Fangcun, Shigeng, Qianyou, and Xujia in Zhanjia commune are of the highest quality. The production area is situated at the western end of the Jinqi Basin in western Zhejiang, with the Qu River flowing through it and an altitude of 66.1 meters. The average annual temperature is 17.3°C, the frost-free period lasts 257 days, and the annual precipitation is 1786.5 mm. Due to the mild and rainy climate and superior natural conditions, agricultural production is relatively developed. Coupled with the long-standing tradition of growing green manure, there is a year-round abundance of pig feed. In spring, there are alfalfa, June beans, and barley, while in autumn, there are corn, sweet potatoes, and ground beans, along with abundant wild feed resources. Farmers have traditionally raised sows to accumulate more manure.

　　Geographic Distribution: The Longyou Black Pig is currently distributed in cities and counties such as Quzhou City, Jinhua City, Lanxi County, and Suichang County.

　　Breed Characteristics: The Longyou Black Pig is of medium to small size. There are two types of head shapes: lion head and mouse head. Lion Head Type: Short head with a wide forehead, slightly concave face, short and slightly upturned snout, many deep wrinkles on the forehead, large ears that droop almost covering the entire face, short neck with full flesh, relatively wide and deep chest, back and waist slightly long, wide, and slightly concave. Mouse Head Type: Long and pointed snout, relatively flat and straight face, fewer and shallower wrinkles on the forehead, slightly higher limbs, flatter and straighter back and waist, smaller ears. Common features include moderately sized belly, slightly tilted hips, short tail, short and slender limbs, and solid hooves. The whole body is covered with black, sparse, fine, and short hair, with underdeveloped mane hair. The number of teats is mostly 7–8 pairs.

　　Breed Performance: Adult male Longyou Black Pigs weigh 79.44±1.31 kg, with a body length of 112.18±0.65 cm, chest circumference of 102.45±0.67 cm, and body height of 59.25±0.33 cm; adult females have corresponding measurements of 97.60±12.25 kg, 126.77±6.43 cm, 107.00±3.67 cm, and 71.25±3.27 cm. First-time sows give birth to 8–9 piglets, while sows with three or more litters give birth to 12–13 piglets. The daily weight gain during the fattening period is about 454 grams. For pigs weighing 72 kg, the slaughter rate is 73.2%, backfat thickness is 4.5 cm, loin eye area is 18.6 square cm, and lean meat rate is 43%. The breed is characterized by early sexual maturity, high fat ratio, and high fat content in muscles. The Longyou Black Pig is one of the excellent local pig breeds in Zhejiang Province, known for early weaning of piglets and early fat deposition. However, individuals are not large, growth is relatively slow, and feed utilization efficiency is low.

　　Longyou Black Pig

　　Longyou County Longyou Black Pig Industry Association

　　8317712

　　Live Pigs