Pond multifunctional duckweed cultivation net cage

Abstract

The invention discloses a multifunctional lemna minor culturing net cage for a pond, which comprises a net cage, a floating body check block and an outer edge net, wherein the upper end face of the net cage is an open face; the net cage is provided with sinkers; the floating body check block is arranged at the upper end of the net cage in a manner of surrounding the edge of the upper edge of the net cage; the outer edge net is a netty sheet body, is connected with the floating body check block, is laid around the upper end of the net cage in a surrounding manner and is provided with floats so as to float on the water surface; the net cage is suspended in the water under the combined action of buoyancies of the floating body check block and the floats and sinking forces of the sinkers; the floating body check block floats on the water surface in a manner that the top half part of the floating body check block is exposed out of the water surface; the floating body check block is provided with at least one foodstuff opening. The multifunctional lemna minor culturing net cage for the pond has good lemna minor culturing and preservation functions and not only can continuously provide edible lemna minor for fishes, but also takes an effect of purifying water quality of the pond. Moreover, the multifunctional lemna minor culturing net cage for the pond can also be used for culturing and breeding fancy fishes such as goldfishes and the like and can also be used as a temporary rearing net cage of fishes in necessity.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a multifunctional duckweed cultivation cage in ponds. Background technique [0002] Duckweed refers to aquatic floating plants belonging to the Duckweed family, such as turnips, small duckweeds, and purple-backed duckweeds. Duckweed has high crude protein and vitamin content, rich nutrition, good palatability, and fast reproduction speed. It is a high-quality bait for herbivorous and omnivorous fish, and it also has certain medicinal value. Using duckweed to raise fish can not only cultivate large and neat fish species, but also has important significance in the cultivation of adult fish. It is an effective way to reduce feed costs and improve economic benefits. In addition, cultivating duckweed in ponds can also purify and regulate water quality. [0003] Duckweed mainly grows on the surface of water bodies, and the suitable growth water temperature is 20-30°C. Duckweed ca...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical defect that duckweed cannot be continuously cultivated in existing ponds for fish farming, the present invention invents a pond multifunctional duckweed cultivation net cage, which can ensure simultaneous cultivation of fish and duckweed in the pond, and can also It is used as a temporary cage for ordinary fish or ornamental fish, with simple structure and convenient use

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