In addition to being common in rural areas, some facilities similar to pig troughs will also appear in modern cities, such as underground parking lots and garbage stations. These places also have the characteristics similar to pig troughs, that is, the space is small, the smell is mixed and the environment is rough. But the main purpose of these places is not to feed pigs, but to solve some problems in urban management. So the "pig trough" in the city is very different from the "pig trough" in the countryside.
Cultural customs often mention pig troughs. For example, on the festival of the elderly, people should set up a pig trough at home to let the pigs crush the field. This custom is intended to pray for a bumper harvest and family happiness, and it is also a manifestation of concern and protection for domestic animals such as pigs. It can be seen that pig trough has certain traditional value and cultural connotation in rural life.