Equipment and method for collecting industrially cultivated pelagic eggs

Abstract

The invention relates to equipment and a method for collecting industrially cultivated pelagic eggs. The equipment comprises a water inlet tube, a drainage tube, an anti-flow drainage tube, a glass fiber reinforced plastic groove and a pelagic egg collecting net cage. The use method of the equipment comprises the following steps that water for cultivation flows into a cultivation pool through the water inlet tube to form a gentle water surface circumfluence; and the pelagic eggs are driven to be discharged into the pelagic egg collecting net cage outside the pool through the drainage tube. The mesh of the pelagic egg collecting net cage is bolting-silk of 260-300 meshes and is located in the glass fiber reinforced plastic groove. The pelagic eggs are blocked by the mesh and collected in the net cage while water is discharged through the drainage tube of the glass fiber reinforced plastic groove. In order to prevent overflow of water in the cultivation pool, an anti-flow drainage tube is arranged close to the drainage tube in the cultivation pool. The tube orifice in the pool is higher than the water level of the pool but lower than the maximum height of the pool wall. The tube orifice outside the pool is located in the pelagic egg collecting net cage. Shown by practices, the invention can rapidly and effectively collect the pelagic eggs in the collecting pool and has the advantages of small mechanical damage to eggs in the collecting process and high collecting efficiency which reaches above 95% and low facility improvement cost and easy popularization.

Description

Technical field: [0001] The invention belongs to the production technology of factory breeding seedlings, and is a collection facility and collection method for floating eggs in a breeding pond under factory breeding conditions. Background technique: [0002] Factory farming is the main way and way for the aquaculture industry to develop towards industrialization. my country's factory farming started relatively late compared with western developed countries, and entered the stage of industrialization in the early 1990s. In recent years, with the improvement of the national economy and technological level, factory farming has also developed into one of the mainstream models of mariculture in my country, occupying an extremely important position in the mariculture industry in China. [0003] Cultivating parents with excellent traits, obtaining high-quality eggs, and breeding healthy and lively commercial seedlings is the foundation for the stable and sustainable development of the e...

AI Technical Summary

Problems solved by technology

Before the present invention was formed, there was no detailed report similar to the present invention on the method of collecting floating eggs in industrialized culture both at home and abroad.

Images