A kind of breeding method of pure white imitation sea cucumber

Abstract

The invention provides a pure white imitation sea cucumber breeding method, which is characterized in that: collect pure wild sea cucumber individuals with white back and abdomen, and move them to a breeding pond for separate isolation and temporary storage; Select and breed the basic population, carry out artificial induction, hatching and breeding; when 30% of the planktonic larvae develop into salivary larvae, put a white corrugated board frame as the attachment base; change the water regularly, put in the feed, and record the body color and growth and development, and screen and eliminate poor individuals. According to the color-mimetic principle of sea cucumber body color change, the whole process of cultivation is carried out in white culture ponds; the F1 generation white sea cucumbers selected as parents are self-crossed and preserved respectively. The basic population is crossed to form F2 progeny, and the breeding technology and breeding conditions of F2 progeny are the same as those of F1 generation. After 3 times of high-intensity standardized breeding, a new F3 generation pure white sea cucumber strain was obtained, with a retention rate of more than 90%, and the growth rate and stress resistance traits were not significantly different from those of the original sea cucumber.

Description

technical field [0001] The invention relates to seawater culture technology, in particular to a method for breeding pure white imitation sea cucumbers. Background technique [0002] Since 2003, with the continuous increase of consumer demand, the scale of sea cucumber farming in my country has expanded rapidly, forming the "fifth" wave of marine aquaculture industry after algae, shellfish, shrimp, and fish, and has now become a single species in my country. Mariculture is the leading industry with the highest aquaculture output value. The existing sea cucumber aquaculture area in the country is about 214,945 hectares, with an annual output of 193,705 tons and an annual output value of more than 35 billion yuan. [0003] Imitation sea cucumber is also called gray sea cucumber, gray ginseng, sea rat, that is, sea cucumber in common sayings. Its body color changes with the growth environment. It is mostly yellow, brown, cyan, and the whole body of white sea cucumber is commonly ...

AI Technical Summary

Problems solved by technology

[0004] At present, in terms of genetics and breeding of sea cucumbers, only my country has carried out research in the world by combining selective breeding and molecular biology. The target traits of selection are mainly rapid growth, low-salt tolerance, high temperature resistance, and disease resistance. For quantitative traits related to growth, there has been no breakthrough in breeding for qualitative traits such as appearance and body color

In 2009 and 2010, Orient Ocean Science and Technology Co., Ltd. and the Institute of Oceanology, Chinese Academy of Sciences jointly carried out artificial breeding with white japonicus ginseng, and obtained more than 20 million juvenile white japonicus japonicus, but the body color was yellowish or warty. There are many individuals of Huang, which cannot reach the top quality of the whole body milky white and crystal clear

[0005] my country is the first country in the world to consume imitation sea cucumbers the most. Its unique health care and immune-enhancing effects have been favored by people since ancient times. It is known as the first of the "Eight Treasures of Seafood". The high-end famous dishes imitating japonicus as the main ingredients, the dishes are delicious and tender, which fully embodies the five elements of "fragrance, meaning, form and nourishment" in Chinese food culture, but in terms of the "color" element of dish evaluation, it is not due to The body color of Apostichopus japonicus is different and there has been no ideal judgment