A kind of breeding method of rough sea cucumber artificial seed

Abstract

The invention provides a method for breeding artificial seedlings of rough sea cucumber, which comprises the steps of cultivating parent ginseng, inducing oviposition, washing eggs and hatching, cultivating larvae, picking seedlings, cultivating immature ginseng, etc., wherein, spirulina powder, marine yeast , aquatic yeast and bacillus as bait, not only the source of bait is convenient, but also saves the input of single-cell culture facilities, and saves the manpower required for the culture of single-cell algae bait, which can greatly save the cost of sea cucumber seedlings, and is beneficial to rough sea cucumber seedlings promotion of breeding techniques. Using the substitute bait to replace the living single-cell algae can save about 25% of the investment in seedling raising facilities, and about 30% of the human investment in seedling raising, and the ratio of seedling raising input to output is 1:3. Among them, the induction of spawning is carried out within 2 days of the first day of the lunar calendar and the 15th day of the lunar calendar, and the good effect of collecting eggs twice a month is obtained. The success rate of spawning induction is 83.3%, which solves the difficulty of inducing spawning of sea cucumbers. technical problems.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for breeding rough sea cucumber artificial seedlings. Background technique [0002] Coarse sea cucumber, scientific name: Holothuria scabra, is an animal of the genus Holothuria in the family Holothuria. Nutritional value, economic value and health care function, it is a real ecological healthy food. Internationally, rough sea cucumber is also an important tropical sea cucumber cultured species and a high-grade aquatic product for export. Distributed in the west from Port Natal to the Red Sea, east to the Caroline Islands, Fiji Islands, north to Japan, south to Australia, and Guangxi, Guangdong, Hainan and other places in mainland China, generally living on the edge of coastal reefs and Sandy bottom with fast tide and seaweed. As an important part of sea cucumber breeding, sea cucumber seedling cultivation technology has been widely carried out in coastal areas ...

AI Technical Summary

Problems solved by technology

[0003] However, the current rough sea cucumber seed breeding mainly has the following two problems: 1. In the planktonic stage of the larvae, Chaetoceros mouvii, Isoflagellates, Phymophthora subcordiformis and Chlorella are used as bait. The water temperature in the southern region is relatively high, and the cultivation of the above-mentioned biological bait is easily polluted by protozoa, resulting in failure, which makes it difficult to guarantee the bait supply of sea cucumber larvae. induction method