Low-temperature breeding device for large yellow croakers

The invention discloses a low-temperature breeding device for large yellow croakers. The low-temperature breeding device comprises a breeding pond, wherein a pollution discharge assembly is arranged at the bottom end of the breeding pond; a water return assembly is arranged on the side wall of the breeding pool; a temperature sensor and an oxygen sensor are arranged in the breeding pond; the walking channel is detachably connected to the top end of the breeding pond, a driving assembly is arranged on the walking channel, and the output end of the driving assembly extends into the breeding pond and is in threaded connection with the intercepting net; the driving assembly is rotationally connected with an oxygen supply assembly; and the water circulation mechanism comprises a filtering assembly communicated with the pollution discharge assembly, an outlet of the filtering assembly is communicated with the temperature adjusting device, and an outlet of the temperature adjusting device is communicated with the wa