Sipunculus nudus family establishing and excellent variety breeding method

A kind of technology of scorpion and pedigree, applied in the direction of animal husbandry and other directions, can solve the problems of lack of breeding method of scorpion, technology disclosure, etc., and achieve the effect of solving the problem of excellent population, strong operability and obvious effect.

Inactive Publication Date: 2016-01-20
广西海洋研究所有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, by searching relevant literature, there is no relevant tec

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1. Parent selection and family formation:

[0016] From the 85kg adult square star worms, select the ones with no damage on the body surface, strong vitality, good color and luster, and the body weight is greater than

[0017] The parent body of 18g, the selection intensity is 20%, as the alternative parent body. Then select male and female individuals with mature eggs and sperm, the selection intensity is 30%, and finally 220 female individuals and 55 male individuals are selected as candidate parents. The female-to-male ratio is 5:1, and the parental combinations with poor vigor are eliminated during the temporary raising and induced labor stages, and 32 half-sib families are initially established. Mark the families separately, and select the best and eliminate the bad in the stages of seedling cultivation, medium cultivation and breeding.

[0018] 2. Carrying out the three key stages of metamorphic attachment, medium-cultured seedlings and sexual maturation

[001...

Embodiment 2

[0025] 1. Parent selection and family formation:

[0026] From the 130kg adult square starworm, select the one with no damage on the body surface, strong vitality, good color and luster, and large weight.

[0027] In the parent body of 18g, the selection intensity is 20%, as an alternative parent body. Then select male and female individuals with mature eggs and sperm, the selection intensity is 30%, and finally 400 female individuals and 120 male individuals are selected as candidate parents. The female-to-male ratio is 5:1, and the parental combinations with poor vigor are eliminated during the stage of temporary rearing and induced labor, and 60 half-sib families are initially established. Mark the families separately, and select the best and eliminate the bad in the stages of seedling cultivation, medium cultivation and breeding.

[0028] 2. Carrying out the three key stages of metamorphic attachment, medium-cultured seedlings and sexual maturation

[0029] Row preferen...

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Abstract

The invention discloses a sipunculus nudus family establishing and excellent variety breeding method. As variety degeneration occurs due to an extensive breeding way of sipunculus nudus, the invention adopts the following technical measures: 1, parent conditions and selection: parents are selected to establish half-sib families; 2, optimal selection during a pelagospheric larvae metamorphosis settlement stage: the families of pelagospheric larvae with the metamorphosis survival rate reaching 40% or above are selected as primary selection families; 3, optimal selection during a middle larva breeding stage: 60% of the families with the high growth speed and high survival rate are selected as alternative families; 4, optimal selection during a sexual maturity stage: optimal selection is carried out on the alternative families, and 40% of the families with the high growth speed, high survival rate and relatively high whole sexual maturity are selected as parents; 5, elimination of inferior families: copulation between sibs and half sibs is avoided in the alternative families; 6, family continuous generation breeding: a reciprocal hybridization method among families is adopted and an excellent sipunculus nudus variety with the high growth speed is bred. By adopting the method disclosed by the invention, the problem about healthy and scientific breeding of the good variety population of sipunculus nudus is solved.

Description

technical field [0001] The invention relates to the selection and breeding of fine varieties of the aquaterna, in particular to a method for establishing a family of the acanthus and breeding of improved varieties, and belongs to the technical field of breeding and breeding of aquatic products. Background technique [0002] Checkered Starworm ( Sipunculus nudus ), commonly known as "sand worms", mainly burrow in intertidal tidal flats with sandy or sandy muddy bottoms along the coast, and mainly feed on organic debris, microorganisms, and benthic diatoms in muddy sandy bottoms. Sandworm has high nutritional value and is known as "natural monosodium glutamate". The dried sandworm tastes delicious but is expensive. At present, the cultivation method of the square starworm is basically mature, and the ecological breeding is implemented. The cost only includes seedlings and excavation costs. It has the advantages of small cost and high profit, stable production, and convenient ...

Claims

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Application Information

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IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 彭银辉蒋艳黄国强蔡德建刘旭佳
Owner 广西海洋研究所有限责任公司
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