Method for constructing tongue sole families and breeding superior families

A technology of tongue sole and family line, which is applied in the field of family construction and breeding, can solve the problems of germplasm degradation and frequent disease occurrence of tongue sole, and achieve obvious effects, high breeding efficiency, and strong pertinence

Active Publication Date: 2010-11-17
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to solve the problems of germplasm degradation and frequent disease occurrence in tongue sole with these technologies, and family selection is one of the main means of breeding dise...

Method used

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  • Method for constructing tongue sole families and breeding superior families
  • Method for constructing tongue sole families and breeding superior families

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Experimental program
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Embodiment Construction

[0021] The technical content of the present invention will be described in detail below through the construction of the semi-smooth tongue sole family and the screening of rapid growth and disease-resistant families:

[0022] The technical contents of the present invention are as follows: including: 1. Semi-smooth tongue sole population selection; 2. Semi-smooth tongue sole family construction; 3. Semi-smooth tongue sole family construction; 3. Semi-smooth tongue sole family selection for disease-resistant and fast-growing families.

[0023] 1. Semi-smooth tongue sole group breeding: including: semi-smooth tongue sole group breeding and artificial breeding.

[0024] Breeding of wild population: it is to collect half-smooth tongue sole fry or fingerlings caught from the Bohai Bay. Choose healthy and vigorous fry or fingerlings with no scars on the body as the wild population, stock them in cement ponds for breeding, and when the fry grow to 12 At -18 cm, after the sex of the fry is id...

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Abstract

The invention relates to a method for constructing tongue sole families and breeding good families, which comprises the technical content of breeding a tongue sole group, constructing the tongue sole families and screening a disease-resistant family and a fast growing family of tongue sole. The method comprises the following steps of: constructing the families through the group breeding and intraspecific hybridization technology; then, screening out the family resisting vibrio anguillarum disease from a large amount of family by an artificial infection approach, and screening out the fast growing family by growth comparison. The fries in the good families can be directly popularized and applied, or used for breeding a high-yield and disease-resistant good strain of tongue sole. The invention has the characteristics of strong pertinence, high breeding efficiency, obvious effect and the like. The established method for screening good tongue sole families provides a new technical approach for breeding the high-yield and disease-resistant good strain of tongue sole. The method is suitably popularized and applied to other cultured fishes, and has important significance and application value for breeding high-yield and disease-resistant strains of the cultured fishes.

Description

Technical field: [0001] The invention belongs to a breeding method for fine fish species in the field of aquaculture, and is a family construction and breeding method that can be applied in the breeding of fine lines of semi-smooth tongue sole. Background technique: [0002] Semi-smooth tongue sole (Cynoglossus semiliaevis) is a kind of precious economic marine fish unique to my country. It belongs to offshore warm-water demersal fish. It is distributed along the coast of my country, mostly in the Yellow Sea and Bohai Sea. Semi-smooth tongue sole is very popular among consumers due to its delicious taste, tender meat and rich nutrition. Its market value is extremely high and its breeding prospect is very broad. Semi-smooth tongue sole is currently one of the main species of marine fish farming. Its aquaculture output is currently nearly 10,000 tons, and the price is expensive. The market price reaches about 200 yuan / 1000 g. The current annual output value of the semi-smooth tongu...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈松林杜民杨景峰胡乔木徐营
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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