Zibo Linzi chang pig cooperatives established in May 27, 2008, from the original six members, has now grown to 629 registered, members radiation surrounding five counties: Green Town, Wendeng City, Temple of the town, Zichuan Romanian villages, black Wang Zhen, Nam Dinh Town Zhangdian, Feng Township and the surrounding areas, the coverage radius of 50 kilometers, the development of the cooperative as the center of pig herds 500 above-scale breeding base over 80, is the city's first large-scale pig regional cooperatives. Black is the agency side of the river in recent years to explore the culture of the city's only local breeds, particularly strong disease resistance, resistance to crude feed, high nutritional value, delicious taste, good taste and beauty and famous. Black River side will make up its own brand of high-end consumer groups to demand for high quality pork, and open up a new pattern pig industry.