"Pigs must be kept clean."

The new changes in pig-raising villages are actually the common goal of nearly 500 pig-raising counties in China. It is an urgent task for pig-raising counties to control the pollution of pig-raising in rural areas.
Jieguan Village, Aoshan Town, Shanggao County, Jiangxi Province, is a well-known professional pig farming village. However, as more and more pig farms in the village emerge, new worries emerge and new changes in professional villages emerge.
Shanggao County is a large county where live pigs are transferred from all over the country, and nearly one million live pigs are produced annually. In Jiguancun, reporters found that almost every family is a professional pig farmer. In the late 1990s, Jiguancun built a pig farm and developed large-scale pig farming. More than 95% of the farmers in the village raised pigs, with an average of 38 pigs per capita. Nie Zigen, the village leader who led us to raise pigs, was also rated as a national model worker.
However, the piggery village was not proud last year: in the village where piggery experts came out in succession, the survival rate of each sow was only 89, which was only 60% of the average level in Jiangxi province. Shanggao County is no longer concerned about the new expansion of several pig pens in Jiguan Village. They are more worried about the high breeding density and the irregular discharge of pollutants from past pig farms, which make the environment worse, the high incidence of pig epidemics and the decline of breeding efficiency. Nie Zigen said, "Ten meters deep groundwater has been polluted. If this goes on, Jiguancun will become Jiguicun.
By simply expanding the scale of pig farming to become rich, pollution problems have arisen. Jiguancun and the whole county and even other provinces in the country pigs out of big counties, reflecting on the current thing to do. In the second half of 2011, Shanggao County began to tackle the pollution of farming industry and explore a sustainable way to raise pigs. Shanggao divides the county into 481 prohibited areas, 1041 restricted areas and 2752 conservable areas. The existing pig farms in restricted areas and conservable areas are gradually equipped with pollution control facilities. New pig farms need to pass the environmental protection department's "environmental assessment" like factories.
The pig farming village is busy again. This time, however, it is no longer a big pig farm, but a large filter pond, a methane tank and a sedimentation tank. At the beginning of August, the reporter saw in Jiguancun that it was difficult to find the scenario of foul water crossflow in the past. Small-scale farms were relocated to the planned area. New pig houses were built to separate rain and sewage. After multi-stage precipitation and plant purification, the waste was finally discharged up to the standard. According to reports, nearly 90% of pig farms in Shanggaoquan County have built or completed corresponding pollution control facilities, and the rate of meeting the standards of three types of water quality has increased to more than 88%.
"Now the reservoir can swim again!" Li Jingyang, a big pig farmer in Shanggao County, sighed, "Only by adhering to the sustainable development of pig industry can we finally protect our interests." To raise pigs and raise clean pigs ", the new changes in pig breeding villages are actually the common goal of nearly 500 large pig farms in China. According to the estimation of the Animal Husbandry Bureau of Jiangxi Agricultural Department, the average daily sewage production per pig is 15 kg and dry manure production is 2 kg. At present, it is an urgent task to control the pollution of pig farming in the countryside.