A kind of clam purification propagation cultivation method

Abstract

The invention discloses a cyclinasinensis purification reproduction and culture method. The method includes the processes of temporary culture of parent clams, spawning of the parent clams, trochophore hatching, D-larvae and post-larvae culture and juvenile clam culture. Microbial preparations are thrown in during the process of temporary culture of the parent clams, a chitosan decontamination agent is thrown in during the process of spawning of the parent clams, the microbial preparations are thrown in during the course of trochophore hatching, microalgae preparations are thrown in during the course of D-larvae and post-larvae culture, and juvenile clams are fed with tetraselmis in the period of juvenile clam culture till grown-up cyclinasinensis is harvested. Purification substances are thrown in the whole period from temporary culture of the parent clams to larvae culture and juvenile clam culture for purifying meat, pollution of contaminants is avoided from the source, healthiness, greenness and non-pollution in the culture process are guaranteed, the contaminants such as heavy metal, petroleum and nitrofuran derivatives in bodies of the grown-up cyclinasinensis are reduced significantly, and good effect on removal of escherichia coli, sphingomonaspaucimobilis, vibrio, aeromonassalmonicida and the like is achieved, and the grown-up cyclinasinensis completely conforming to food security can be cultured.

Description

technical field [0001] The invention relates to a method for breeding and cultivating shellfish, in particular to a method for purifying and breeding clams. Background technique [0002] Green clams belong to the branchial valve class, clam order, and clam family, commonly known as black clams, iron clams, clams, round clams, stone snails, etc. They are warm-water species and are distributed in the north and south coasts of my country. Its meat is delicious and nutritious, and belongs to high-protein food. Since the 1980s, the research on artificial seedlings of green clams has been carried out, and satisfactory results have been obtained in researches on cultivation of earthen ponds and industrial seedlings of green clams. [0003] However, in recent years, with the rapid development of my country's industry and agriculture, the pollution of pollutants to the environment, especially water bodies, has become more and more serious. These pollutants are mainly divided into th...

AI Technical Summary

Problems solved by technology

This method has high cost, long purification time and unsatisfactory purification effect; the second is the soluble disinfectant purification technology, that is, the use of chlorine and chlorine-containing compounds for purification, chloride has strong bactericidal ability, and low-concentration chloride inhibits shellfish Filter-feeding, effective control of pathogens

However, chloride is a chemical reagent, which is prone to produce toxic chloramines, thereby affecting the quality of shellfish; the third is physical methods, that is, ultraviolet or ozone purification, which is currently the most commonly used purification method

Ultraviolet and ozone purification methods are affected by seawater turbidity, color, and soluble iron salt content, and have relatively large limitations

[0005] The above method is usually to carry out a certain purification treatment on the finished clams that need to be marketed, in order to meet the requirements of removing pollutants. There is no purification and reproduction method that starts from the seedling cultivation stage, and does not prevent the invasion of pollutants from the root.

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