Stichopus japonicus seedling large-scale ecological culture method utilizing outdoor net cages

Abstract

The invention discloses a stichopus japonicus seedling large-scale ecological culture method utilizing outdoor net cages. The method comprises the following steps that 1, the parent cucumber egg taking is adopted for incubation in a seedling raising workshop, and the breeding collection is carried out when seedlings grow to the early ear larva stage; 2, net cages are arranged in an offshore haven bay or a sea cucumber pond, and 200-to-300-mesh bolting-silk nettings are selected in the net cages; 3, collected early ear larvae are uniformly fed into the net cages; 4, the manual supplementary feeding of rhodotorula benthica is adopted; 5, when the early ear larvae grow to the big ear larva stage, substrata are hung in the net cages, and in addition, the manual supplementary feeding of rhodotorula benthica stops; and 6, the cucumber is raised to the young cucumber stage, the bolting-silk nettings are replaced into 60-80-mesh polyethylene nettings, and the cucumber is continuously raised. The method has the advantages that the offshore or pond net cage culture is carried out from the stichopus japonicus larva culture, so the goals of reducing the cost, improving the survival rate, improving the economic benefit and the like are reached.

Description

technical field [0001] The invention relates to the field of sea cucumber cultivation, more specifically, to a method for large-scale ecological cultivation of sea cucumbers. Background technique [0002] Sea cucumber is the collective name of Echinodermata and Holothuroidea. There are about 1,200 species of sea cucumbers in the world, all of which are marine species, and more than 40 species are edible. There are more than 140 species of sea cucumbers distributed in my country's sea areas, and more than 20 species are edible. There is only one edible sea cucumber in the northern coast of my country, that is, sea cucumber (Apostichopus japonicas Selenka). [0003] Existing technology Four Chinese patents related to the production technology of japonicus japonicus net cage seedlings are: "Scale-scale ecological seedling cultivation method of japonicus japonicus in natural sea area" (public number CN101692796A), "a japonicus japonicus sea seedling cage and method for raising s...

AI Technical Summary

Problems solved by technology

The present invention greatly improves the survival rate of the larvae put in the net cage by rationally selecting the larvae, the net cages to be put in, and the conditions such as the temperature of the sea water or transportation, and at the same time solves the uneven development of the larvae caused by the inconsistency of oviposition of the parent ginseng , and low hatching efficiency, greatly improving the production efficiency of the parent ginseng, increasing the output of sea cucumber seedlings, and improving economic benefits

Images