Breeding method for pure white apostichopus japonicus

Abstract

The invention provides a breeding method for pure white apostichopus japonicas.The method is characterized by comprising the steps that pure wild apostichopus japonicas bodies with the white backs and abdomens are collected and transferred into an aquaculture pond for independent isolation temporary rearing and storage; breeding base populations are screened out starting from the last ten days of April, artificial spawning, incubation and breeding are performed; when 30% of plankton larvae are developed to doliolaria, a white corrugated plate frame is put in to be used as an adhering substrate; regular water changing and feed putting are performed, the apostichopus japonicas larva color and growth development situations are recorded, poor larvae are screened out and eliminated, and the overall breeding process is performed in the white culture pond on the basis of the apostichopus japonicas color changing apatetic principle; the bred generation F1 white apostichopus japonicas is used as parents to be subjected to selfing and hybridization with stored basic populations to form a filial generation F2, and the filial generation F2 and the generation F1 are the same in breeding technological process and breeding conditions.High-strength standardized breeding is performed three times, the pure white apostichopus japonicas novel line of the generation F3 is obtained, the selecting and remaining rate is 90% or above, and the growth speed and adverse resistance characters are not significantly different from those of protospecies apostichopus japonicas.

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