At present, there are really not many pig farms with biogas digesters in rural areas. There are many reasons for this, mainly the following: First, the villagers have limited acceptance of this new thing. Compared with traditional aquaculture, it is unacceptable for villagers to suddenly build biogas digesters. Second, the construction of biogas digesters requires a large sum of money. If the state does not subsidize the funds and let the villagers pay for them themselves, the villagers are very reluctant, and no one is willing to do such a thing. Third, in traditional aquaculture, most of the manure treatment is sold as organic fertilizer. In rural areas, there are still many people who are used to buying animal manure as fertilizer for land crops, so there is no shortage of farmed manure.

It is actually a good measure to build biogas digesters next to breeding pig farms and chicken farms. In this way, animal feces, weeds and straws can be better treated, which is of great help to control rural pollution. I believe that people living in rural areas will have this deep feeling. The pollution next to farms is very serious, with pungent smell and sewage everywhere. This situation needs to be changed.

At present, our country subsidizes the construction of biogas digesters. Most biogas digesters are repaired by the state, but there is a premise that the biogas digesters repaired by the state must apply for and have a certain construction scale. The state does not need money in this process, and at the same time, it will provide some cooking utensils and subsidies. In the end, it is basically built at no cost, so it is still very attractive.

The construction of biogas in pig farms also reduces the environmental pollution. At the same time, pig manure contains a lot of organic matter. After high-temperature fermentation, it can kill the health of pathogenic microorganisms in wastewater, improve the living environment, and also reduce the occurrence of animal and human diseases. The construction of biogas pig farms not only ensures people's health, but also contributes to the sustainable development of animal husbandry, so this process is of great benefit to farmers and the country, and is a good measure.