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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 fields with fast growth rate, can solve the problems of low survival rate and slow growth rate of flounder seedlings, etc., and achieves the improvement of homozygous speed. , the effect of improving efficiency

Inactive Publication Date: 2010-05-05
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 scheme of the present invention is based: Combining modern biotechnology with traditional selective breeding technology to cultivate new varieties. Selective breeding (selective breding) is based on the breeding goal, among the natural mutation types that appear in the existing varieties or breeding materials, after comparison and identification, through a variety of selection methods, the advantages and disadvantages are selected, the excellent mutant individuals are selected, and the new ones are cultivated. Variety of methods. Family selection is one of the methods of selection breeding. Through family establishment, reproduction, and comparison, we can eliminate bad families, select families that meet the standards, and increase the genetic homozygosity of the variety from generation to generation, and select new breeds with stable and excellent traits. Variety. The technology of the present invention organically combi...

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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 and properties, 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 biotechnology, and is a breeding method for selecting and cultivating a new line of flounder with fast growth and high survival rate. Background technique: [0002] Paralichthys olivaceus (Paralichthys olivaceus) is a major economic fish distributed along the coast of my country. It is the main target of natural fishing, industrialization, pond and cage culture, and accounts for a large proportion of fishery output. However, with the increase in fishing intensity of natural fish resources, the decline of Paralichthys olivaceus germplasm resources has appeared. In addition, in the artificial breeding environment, my country has not paid enough attention to the breeding of fine varieties of Paralichthys olivaceus for a long time. Inbreeding and breeding, intensive breeding, etc. have led to the degradation of the breeding of Paralichthys olivaceus, the growth rate reduction, the long breeding cycle, and the breed...

Claims

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Application Information

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Patent Type & Authority Applications(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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