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High-density hatching device for viscous roes

A high-density, fish-egg technology, which is applied in fish farming, climate change adaptation, application, etc., can solve the problems that fish eggs cannot obtain dissolved oxygen, high deformity rate of larvae, and low hatching rate, so as to improve the utilization rate of water body space , the overall cost is low, and the effect of avoiding hypoxic death

Inactive Publication Date: 2021-01-19
韦立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the hatching process of fertilized fish eggs, sinking fish eggs accumulate at the bottom of the water due to their large specific gravity, and they are squeezed against each other, which is very easy to cause damage. Low, high deformity rate of larvae and other problems

Method used

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  • High-density hatching device for viscous roes

Examples

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Effect test

Embodiment 1

[0021] A high-density hatching device for viscous fish eggs, which includes a square floating water frame 2, the square floating water frame 2 is assembled from PVC pipes, which need to be sealed and connected during assembly, and the inside of the PVC pipes cannot be water-permeable. The bottom of the square floating water frame 2 is hung with a submerged counterweight 1 that can pull the square floating water frame 2 into the water. The inner side of the square floating water frame 2 is vertically fixed with multiple strings of plastic strings 3. The plastic strings The two ends of 3 are respectively fixed on the upper and lower ends of the square floating water frame 2, and the upper end of the square floating water frame 2 is equipped with a hook 4 for hanging the square floating water frame 2.

[0022] The plastic thread string 3 includes a plastic thread fixing cable 5 and a plastic thread 6, and a plurality of plastic threads 6 are fixed on the plastic thread fixing cabl...

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Abstract

The invention discloses a high-density hatching device for viscous roes. The device comprises a square floating water frame, a submerged balancing weight capable of pulling the square floating water frame into water is hung at the bottom of the square floating water frame, a plurality of plastic filament strings are vertically fixed to the inner side of the square floating water frame, and the twoends of each plastic filament string are fixed to the upper end and the lower end of the square floating water frame respectively. A hook for hanging the square floating water frame is mounted at theupper end of the square floating water frame. The high-density hatching device for the viscous roes can efficiently utilize the incubation water body of the roes and improve and stabilize the incubation rate of the roes, so that the production cost of fries is reduced, and continuous large-scale production of the fries is ensured.

Description

technical field [0001] The invention relates to the technical field of fish artificial reproduction devices, in particular to a high-density hatching device for viscous fish eggs. Background technique [0002] At present, the traditional hatching method generally adopts that broodstock are aphrodisiac and spawn naturally on palm leaves. The palm leaves are used as hatching nests for fish eggs, and the hatching nests for fish eggs are part of natural plants. First, it is inconvenient. Large-scale concentrated application of industrialization, the bigger disadvantage is that the palm leaves are only suitable for fish to lay eggs naturally. The density of fish eggs naturally spawned on palm leaves is low, and the yield of fry in a single pond is small. During the hatching process of fertilized fish eggs, sinking fish eggs accumulate at the bottom of the water due to their large specific gravity, and they are squeezed against each other, which is very easy to cause damage. Low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/17
CPCA01K61/17Y02A40/81
Inventor 韦立
Owner 韦立
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