Fish fry breeding and water-draining system and water changing method thereof

Abstract

The invention discloses a fish fry breeding and water-draining system. The fish fry breeding and water-draining system comprises a breeding pond, a supporting rack, a supporting column, a filter screen, a first pollution discharge tube, a water pump, a water outlet tube, a water inlet tube and a rack; the breeding pond is positioned below the rack; a pollution discharge port is formed in the bottom of the breeding pond; the supporting rack is arranged in the breeding pond, and is positioned on the lower portion of the breeding pond; the supporting column is arranged on the bottom of the supporting rack; the lower end of the supporting column is arranged on the bottom of the breeding pond; the filter screen is arranged on the upper surface of the supporting rack; the water pump is arrangedon the rack; the water inlet tube and the water outlet tube communicate with the water pump; the water outlet tube is positioned over the breeding pond, and is provided with a plurality of water sprayers; and the water spraying direction of the water sprayers faces the breeding pond. The invention further discloses a water changing method using the fish fry breeding and water-draining system. On the premise of not affecting growth of the fish fries, the breeding pond is cleaned, metabolic wastes in the breeding pond are discharged, a growth environment for the fish fries is improved, and the growth quality of the fish fries is also improved.

Description

technical field [0001] The invention relates to the technical field of fry cultivation, in particular to a drainage system for fry cultivation and a water changing method thereof. Background technique [0002] Aquaculture is a high-efficiency production model that uses industrial methods for fish farming. It uses water circulation technology and aeration technology to efficiently breed fish. [0003] At present, in the process of fry breeding, the metabolites of fry are directly discharged into the breeding pond to form sediments. The operator often cleans the sediment inside the breeding pond regularly. However, the breeding pond still contains certain toxins, which are not conducive to When the fish fry grows for a long time, the internal toxins will increase, which will have adverse side effects on the healthy growth of the fish fry. [0004] Generally, the water change process of the culture pond is to discharge part of the water inside the culture pond, and then inject...

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of fry breeding, the metabolites of fry are directly discharged into the breeding pond to form sediments. The operator often cleans the sediment inside the breeding pond regularly. However, the breeding pond still contains certain toxins, which are not conducive to The substance used for fry growth, when the breeding pond is in a state for a long time, its internal toxins will become more and more, which will have bad side effects on the healthy growth of fry

Images