Selection and culture method of excellent breed large-tooth flounder featuring fast growth and high survival rate

A technology of survival rate and flounder, which is applied to the breeding of new flounder lines with high survival rate, selects and cultivates the field with fast growth rate, can solve the problems of slow growth rate and low survival rate of flounder seedlings, and achieves the improvement of efficiency and improvement. The effect of homozygous velocity

Inactive Publication Date: 2011-10-12
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

[0003] The purpose of the present invention is to aim at the problems of slow growth and low survival rate of flounder seedlings under the artificial breeding environment, and cultivate a new strain of flounder with fast growth rate and high survival rate, thereby improving the economic benefits of flounder cultivation

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  • Selection and culture method of excellent breed large-tooth flounder featuring fast growth and high survival rate
  • Selection and culture method of excellent breed large-tooth flounder featuring fast growth and high survival rate
  • Selection and culture method of excellent breed large-tooth flounder featuring fast growth and high survival rate

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Embodiment Construction

[0024] The scientific principle on which the technical solution of the present invention is based: the combination of modern biotechnology and traditional selective breeding technology to cultivate new varieties. Selective breeding (selective breeding) is based on breeding objectives, among the natural variation types that appear in existing varieties or breeding materials, after comparative identification, through a variety of selection methods, select the best and eliminate the bad, select excellent mutant individuals, and breed new breeds. Variety of methods. Family selection is one of the methods of selective breeding. Through the establishment, propagation, and comparison of families, bad families are eliminated, and families that meet the standards are selected to improve the genetic homozygosity of varieties from generation to generation. New varieties with stable and excellent traits can be bred. Variety. The technology of the invention organically combines modern bio...

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Abstract

The invention relates to a selection and culture method of excellent breed large-tooth flounder featuring fast growth and high survival rate. The technical method comprises: culture and reproduction regulation and control of large-tooth flounder breeding group, establishment of family by sperm freezing technology, culture and standardization of the family, determination and analysis of number andproperties, estimation of genetic parameters, screening of excellent family, and establishment of excellent breed by inducing thelykaryon of large-tooth flounder to develop by using heterologous frozen sperms. The invention can select and culture new breed of cultured large-tooth flounder featuring fast growth and high survival rate, screen out four excellent large-tooth flounder families featuring fast growth and high survival rate (0703, 0719, 0750 and 0751), and establish seven excellent breeds of large-tooth flounder developed from thelykaryon (0920, 0921, 0927, 0938, 0939, 0946 and 0947). The technical method can be applied to new variety culture of large-tooth flounder cultivation, solve the problems of culturing large-tooth flounder fish in sea water such as slow growth and low survival rate, and enhances economic benefit of large-tooth flounder cultivation.

Description

Technical field: [0001] The technology belongs to the field of marine biological technology, and is a breeding method for selecting and breeding new strains of flounder with fast growth and high survival rate. Background technique: [0002] Flounder (Paralichthys olivaceus) is the main economic fish distributed along the coast of my country. It is the main object of natural fishing, industrialization, pond and cage culture, and occupies a large proportion of fishery output. However, with the increasing fishing intensity of natural fish resources, the germplasm resources of flounder have declined. In addition, in the artificial breeding environment, my country has not paid enough attention to the selection and breeding of fine species of flounder for a long time. low, which has seriously affected the large-scale aquaculture promotion and industrialization of flounder seedlings. Therefore, using different geographical groups of flounder and artificially screened disease-resis...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 田永胜陈松林邓寒徐田军王磊
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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