Shellfish fry cultivation device in upward flow sand bed and using method of shellfish fry cultivation device

Abstract

The invention discloses a shellfish fry cultivation device in an upward flow sand bed. The shellfish fry cultivation device in the upward flow sand bed comprises a fry cultivation pool, a water inletpipe I, a water outlet pipe, a main water pipe and a plurality of branch water pipes, wherein the main water pipe is laid at the bottom of the fry cultivation pool; the tail end of the main water pipeis closed, the front end of the main water pipe is communicated with the water inlet pipe I, the branch water pipes are positioned on the left side and the right side of the main water pipe, the tailend of each branch water pipe is closed, the front end of each branch water pipe is communicated with the main water pipe, and a water outlet hole is formed in each branch water pipe; a sand layer islaid on the bottom of the fry cultivation pool, and a coarse sand layer, a fine sand layer and a silt layer are sequentially arranged above the sand layer; a drainage hole is formed in the middle ofthe bottom of the pool, the bottom end of the water outlet pipe is communicated with the drainage hole, and the top end of the water outlet pipe is exposed out of the silt layer. According to the invention, the upward flow sand bed device is adopted in fry cultivation, so that a substrate environment can be better improved, the fry attaching density is increased, the cultivation density can be tentimes to dozens of times the cultivation density in a conventional mode, and all the fries can normally develop.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a device for cultivating shellfish seedlings on an ascending quicksand bed and a method for using the same. Background technique [0002] my country has a huge marine shellfish aquaculture industry, and shellfish aquaculture is an important member of the marine aquaculture industry, and its output accounts for 80% of the total output of marine aquaculture in my country. Common bivalve molluscs such as clams, oysters and scallops are delicious, nutritious and have important economic value. With the continuous development of artificial breeding technology, more attention has been paid to high-efficiency factory breeding methods, and shellfish breeding has become an important part of the mariculture industry. In the process of industrial breeding of bivalve molluscs, the intermediate cultivation of juvenile shellfish is a key technology. Studies have shown that the...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention solves the technical problem that the water quality is easily damaged during the large-scale and batch-by-batch continuous cultivation of the seedlings by providing a device for cultivating shellfish seedlings on an ascending quicksand bed

Images