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Pseudosciaenapolyactis family establishment and superior family selection method

A technology of small yellow croaker and family line, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low economic return of farming, difficulty of breeding promotion, and no reports yet

Active Publication Date: 2017-04-26
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the individual small yellow croakers currently farmed are very small, and the average body weight until the end of the year is only about 50g. The economic benefits of farming are low, and it is difficult to promote breeding. It is one of the main means of breeding high-yielding fine varieties
But so far, there have been no reports on the establishment of small yellow croaker families, the standardized cultivation of seedlings, and the screening of excellent fast-growing families.

Method used

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  • Pseudosciaenapolyactis family establishment and superior family selection method
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  • Pseudosciaenapolyactis family establishment and superior family selection method

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Embodiment

[0024] A method for constructing a small yellow croaker family and selecting an excellent family includes the following steps: (1) Obtaining parent fish of small yellow croaker; (2) Construction of a small yellow croaker family; (3) Standardized cultivation of the family; (4) Fluorescent labeling of the small yellow croaker family; (5) Fast-growing family filter.

[0025] The specific steps are as follows:

[0026] (1) Acquisition and cultivation of broodstock of small yellow croaker

[0027] The F1 individuals bred from the wild small yellow croaker in 2015 were used as one of the parents, and were cultured in an indoor cement pond; the other wild small yellow croakers caught in 2015 were taken as the other parent, and they were temporarily raised in cages. At the end of November 2015, farmed F1 and wild small yellow croakers with normal shape and body color, healthy and non-injured were selected and placed in two cement ponds for intensive cultivation. The bait was live cla...

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Abstract

The invention discloses a pseudosciaenapolyactis family establishment and superior family selection method and belongs to a fish improved variety selection method in the field of aquaculture. The method comprises the following steps of 1) obtaining parent pseudosciaenapolyactis; 2) performing pseudosciaenapolyactis family establishment; 3) performing family standardized breeding; 4) performing pseudosciaenapolyactis family fluorescence labeling; and 5) performing quick-growth family screening. By adopting the method, fingerling breeding can be carried out by adopting a standardized method through pseudosciaenapolyactis family establishment; families are subjected to fluorescence labeling and mixed breeding in the later stage of the breeding; the two methods can effectively exclude the influence of different breeding environments on family growth; and body mass is measured during family labeling and serves as a co-variable to be substituted into a family screening analysis model, so that the influence of environment factors is further excluded and the quick-growth family can be accurately and efficiently screened out.

Description

technical field [0001] The invention belongs to a method for breeding improved fish species in the field of aquaculture, and in particular relates to a method for building a family of small yellow croakers and a method for selecting an excellent family. Background technique [0002] Small yellow croaker ( Pseudosciaena polyactis , Bleeker), also known as Xiaoxian, yellow croaker, etc., belongs to the class Osteichthyes, the family Sciaendae, and the genus Larimichthys. It is an important economic species in China's offshore fishery. ( Larimichthyscrocea ), cuttlefish ( Sepiella maindron ), hairtail ( Trichiurus japonicas ) and known as my country's "four seafood". In recent years, due to overfishing, water pollution, and deterioration of the ecological environment, the catch of small yellow croakers is declining sharply, and the caught small yellow croakers are becoming younger and smaller. It is urgent to take effective measures to protect the resources of small yel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/95
CPCA01K61/00Y02A40/81
Inventor 刘峰楼宝陈睿毅詹炜
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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