Why is there no cage culture for high-yield pond culture?

The high yield of fish culture in ponds without cages is due to the easy management of cages, such as sterilization, spraying and feeding, and the fish are easy to eat, so they grow well and have high yield.

The method of cage fish culture is as follows:

A method for producing fish by placing a net cage in a certain water area.

Cages are mostly set in lakes, rivers, reservoirs and other waters with certain water flow, fresh water quality and high dissolved oxygen, which can be used for high-density intensive culture. According to the area of cage bottom, the output per square meter can reach ten to dozens of kilograms.

Carp, non-crucian carp and rainbow trout are mainly cultivated, and silver carp, bighead carp, grass carp and bream are also cultivated in China.

The mesh is made of synthetic fiber or metal wire, and the box body is rectangular. The area of each cage is tens of square meters, and the height of the box is 2-4 meters. There are three installation methods: floating, fixed and sinking, and floating is more commonly used.