Distribution:Qingping riverbank in Hubei province,such as Yuxi,Longque,Guangdang and Cihua,Distributing DangYang and other near counties.
Population size:Approximately 40,OOO brood sows in 1981.
Major characteristics:The breed has moderate body conformation and fine and strong constitution.The forehead is narrow,neat and trim.There are shallow longitudinal wrinkles in the forehead.The ears are medium-sized and drooping.The snout is long and straight,but some lightly upward.The back is flat and straight,the belly medium-sized,the rump neatly turned (but some drooping rump),the ham lack plumpness,the bones are trim,and the hind legs sleeping pasten1.The coat color of the breed is black.The replacement piglets grow quickly after the age of 6-1Omonths.The males weight on average 131.3kg and females 103.2kg.The pregnancy duration is on average 110days.The litter size is 9.4piglets in the first litter,and 12.1piglets in third and up-third parity.The daily gain in the fattening period is about 500g.The average dressing percentage is 69.7%.The eye muscle area is 17.1cm2.the lean meat percentage and fat of carcass is 41%and 41.7% respectively.