Semi-enclosed circulating water system and method of producing large-sized juveniles of giant clams on large scale through same

Abstract

The invention discloses a semi-enclosed circulating water system and a method of producing large-sized juveniles of giant clams on large scale through the same. The semi-enclosed circulating water system comprises a water reservoir, a circulating pump, a temperature control device, an open glass jar track, a physical filter device and a protein separator, which are cyclically communicated througha circulating pipeline; the open glass jar track is a rectangular glass jar with a top opening. The semi-enclosed circulating water system and the method herein have the advantages of high feasibility, high practicality, good popularization convenience, significant timeliness and the like. The method herein allows intermediate cultivation survival rate of the juveniles of giant clams to reach 100%; the growth potential is 50% and above higher than that of a conventional method; intermediate cultivation period is shortened by 100% and above; the labor cost is reduced by 60% and above; large-sized juveniles of giant clams can be produced on large scale; reliable technical guarantee is provided for the fry supply of ornamental aquatics market and the recovery of germplasm resources of Nanhaigiant clams.

Description

Technical field: [0001] The invention belongs to the technical field of shellfish cultivation in marine agriculture, and in particular relates to a semi-closed circulating water system and a method for large-scale production of juvenile giant clams by using the semi-closed circulating water system. Background technique: [0002] For shellfish breeding and breeding, the level of intermediate breeding technology for juvenile shellfish directly determines the number of offspring, the breeding output and its benefits. In my country, most of the intermediate breeding techniques of shellfish seed are bred in sea areas, including hanging scallops, oysters, mussels, clams and razor clam seedlings in tidal flats. At present, intermediate breeding of seedlings in ecological shrimp ponds has also been developed, which can semi-manually control the water quality and bait of shrimp ponds, greatly improving the survival rate of seedlings of tidal flat shellfish such as scallops, oysters, ...

AI Technical Summary

Problems solved by technology

Although the team has conquered the breeding technology of giant clam seedlings, how to improve the efficiency of intermediate breeding is a problem worthy of research. Zhang Yuehuan and others disclosed an invention of a method for improving the efficiency of intermediate breeding of giant clam juveniles (application number: 201710174868.7) Patents can successfully breed a large number of giant clam juveniles, but how to further improve the survival rate, speed up the growth rate, and shorten the breeding cycle has become a bottleneck that restricts the development of the industry?

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