Device and method for collecting urechis unicinctus fry

Abstract

The invention belongs to the field of aquatic livestock breeding, and particularly relates to a device and method for collecting urechis unicinctus fry. According to the collecting device, one end of a water inlet pipe is connected with a hose through a valve, and the other end of the water inlet pipe is vertically communicated with the side wall of a main pipe; a transverse branch pipe is vertically communicated with one end of the main pipe, at least one transverse nozzle is vertically arranged on the side wall of the transverse branch pipe, at least one inclined branch pipe is arranged on the side wall of the main pipe, and the top of each inclined branch pipe is provided with an inclined nozzle. The fry are collected through the collecting device, and the method comprises the steps that 1, water is drained for the first time; 2, wand flushing is carried out, and water is drained for the second time; 3, flow speed is adjusted at the same time in the step 2; 4, the fry are collected. The sand flushing method is adopted, the urechis unicinctus fry inhabiting in a sand bed can be collected better and faster, the influence of blackening and smelliness of the sand bed on growth of the urechis unicinctus fry is reduced, the fry collecting speed is improved by two to three times, and the damage rate of the urechis unicinctus fry is reduced.

Description

technical field [0001] The invention belongs to the field of aquatic animal breeding, and in particular relates to a device and method for collecting seedlings of Echinococcus monoringensis. technical background [0002] Commonly known as "sea intestines", the single-ringed spinyweed is a common species in the benthic populations along the coasts of the Yellow Sea and the Bohai Sea. The single-ringed spiny spiny is fat and delicious, and its body wall muscle is rich in protein and a variety of essential amino acids. The coastal areas of China, Japan and South Korea are all regarded as famous and precious seafood with high economic value. Due to the excessive fishing intensity in recent years, the resources of E. monoringensis have declined sharply, and its artificial breeding and breeding work has begun to be paid attention to. [0003] Although through the technical research in recent years, the artificial seedling and breeding technology of the single-ringed weeter has ma...

AI Technical Summary

Problems solved by technology

[0003] Although through the technical research in recent years, the artificial seedling and breeding technology of the single-ringed weeter has made a breakthrough to a certain extent, but there are still other problems at the same time. Because the sand bed needs to be paved as the seedling habitat substrate in the production, and the sand bed After using for a period of time, it will turn black and smelly, and the growth of weed seedlings will be inhibited. At this time, the seedlings must be collected and transferred to a new pond to continue cultivation

However, it is difficult to collect seedlings, and the seedlings are seriously damaged, resulting in a decrease in survival rate, which restricts the large-scale development of seedling production and breeding production

At present, there are no reports at home and abroad to solve the problems of high labor intensity and serious damage to the seedlings caused by collecting seedlings when the single-ringed welt is cultivated indoors.

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