Metapenaeus ensis fast-growing strain group breeding method

A technology for the selection and breeding of new prawns with a knife forehead, which is applied in fish farming, application, climate change adaptation, etc. The effect of high genetic diversity and fast growth rate

Active Publication Date: 2019-09-06
ZHEJIANG MARICULTURE RES INST
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Problems solved by technology

[0002] When breeding and raising seedlings of Penaeus lanceolata, the parents are obtained from fishing in the sea area, propagated and cultivated to obtain shrimp seedlings, but the parents often carry pathogens (including white spot syndrome, enterococcus, parahaemolysis, iridescent virus, Taura virus, contagious hypodermis, etc.), the cultured shrimp seedlings are prone to acute death and increased mortality within one month during the breeding process, which will bring serious consequences to the farmers.
Moreover, directly breeding and cultivating the parents obtained from fishing in the sea area to obtain shrimp seedlings has slow growth rate, uneven size and shape, and abnormal shape. Not only the appearance of the adult shrimp is not good, but also the cost of feeding is increased.

Method used

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  • Metapenaeus ensis fast-growing strain group breeding method

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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Refer as follows figure 1 The present invention is described:

[0026] A method for population selection of New Penaeus lanceolata fast-growing strains, comprising the steps of:

[0027] Obtaining parents: Collect natural populations in coastal areas, and select several Neopenaeus prawns with large individual size and gonad development at about the third stage from this population as parents.

[0028] Transportation of parents: Transport the parents to the...

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Abstract

The invention provides a metapenaeus ensis fast-growing strain group breeding method which includes the steps: (1) parent acquisition; (2) parent transportation; (3) marking and pathogen detection; (4) parent spawning; (5) first-generation offspring pathogen detection; (6) standardization; (7) screening; (8) nutrient enrichment; (9) mating and spawning. Compared with the prior art, metapenaeus ensis offspring groups bred by the metapenaeus ensis fast-growing strain group breeding method have the advantages that pathogens are not carried, growth speed is high, and metapenaeus ensis individualsare uniform in size specification, good in condition and high in genetic diversity.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a group breeding method for fast-growing strains of Neopenaeus prawns. Background technique [0002] When breeding and raising seedlings of Penaeus lanceolata, the parents are obtained from fishing in the sea area, propagated and cultivated to obtain shrimp seedlings, but the parents often carry pathogens (including white spot syndrome, enterococcus, parahaemolysis, iridescent virus, Taura virus, contagious hypodermis, etc.), the cultured shrimp seedlings are prone to acute death and increased mortality within one month during the breeding process, which will bring serious consequences to the farmers. Moreover, directly breeding and cultivating shrimp seedlings from the parents caught in the sea area has slow growth rate, uneven size and abnormal shape, not only the appearance of the adult shrimp is not good, but also increases the cost of feeding. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 张敏冀德伟闫茂仓陈相峰罗奎
Owner ZHEJIANG MARICULTURE RES INST
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