Cross breeding method of Macrobrachium rosenbergu

A technology of Macrobrachium rosenbergii and hybrid breeding, which can be applied in medical science, climate change adaptation, animal delivery, etc., and can solve problems such as inconvenient implementation

Inactive Publication Date: 2006-04-26
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Cross breeding method of Macrobrachium rosenbergu
  • Cross breeding method of Macrobrachium rosenbergu
  • Cross breeding method of Macrobrachium rosenbergu

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Embodiment Construction

[0030] The specific embodiments of the present invention will be described in detail below in conjunction with the drawings.

[0031] The introduction of undeveloped germplasm with no degradation of the Macrobrachium rosenbergii population is a natural population. After careful cultivation, selection and conservation (such as Figure 7 (Shown), select 10,200 female broodstock and 2,000 male broodstock into the nursery greenhouse. The water temperature is controlled at 24-25°C.

[0032] Carry out Burmese species selfing A 1 , The Burmese species A is orthogonal to the native species B 1 + , Anticross B 1 - , Local self-breeding seedling test. Orthogonal B 1 + Breeding such as figure 1 As shown, reverse cross B 1 - Breeding such as figure 2 Shown.

[0033] See Table 1 for mating seed holding rates of the four mating combinations. It can be seen from Table 1 that the seed holding rate of each mating group is as follows: B 1 - >A 1 >Local species>B 1 + .

[0034] Mating ...

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Abstract

The invention relates to method of crossbreeding the exotic fresh water crayfish, especially to method of crossbreeding the Luo shi swamp shrimp. The invention introduces the distant Luo shi swamp shrimp sprout A, mating the female parent shrimp and male parent shrimp of the distant Luo shi swamp shrimp sprout A with that of native breed and getting the cross cut B1+ and negative cross B1-; mating the cross cut B1+ and negative cross B1- with the native breed and getting the backcross B2++ of B1+, negative back cross B2+- of B1+, negative back cross B2-- of B1- and back cross B2-+ of B1-; breeding the backcross B2++ of B1+, negative back cross B2+- of B1+, negative back cross B2-- of B1- and back cross B2-+ of B1-. The survival rate and seed-accumulating rate of the four kinks of sprout is all good, the composition of water, coarse ash content, coarse protein, coarse fat content, amino acid and aliphatic acid is higher than that of native obviously by applying the technique in this invention, especially the breed-accumulating rate of the cross B2-+ of B1- is increased to 67.25%, the rate of emergence to 94.56%.

Description

Technical field [0001] The invention relates to an introduced hybrid breeding technology for freshwater prawns, in particular to a hybrid breeding method for Macrobrachium rosenbergii. Background technique [0002] Macrobrachium rosenbergii (Macrobrachium rosenbergii), the English name Giant freshwater prawn, was successfully domesticated in Malaysia in 1961 by the Chinese United Nations official and biologist Dr. Lin Shaowen, and was subsequently promoted in many countries around the world. my country was introduced from Japan in 1976 and gradually developed large-scale breeding in the late 1980s and formed an industrial development in the mid to late 1990s. However, in the process of industrialization development, two major problems appeared, namely, germplasm degradation and the outbreak of muscle white turbidity. The white turbid muscle disease of Macrobrachium rosenbergii has been overcome by scientific and technical personnel of Zhejiang Freshwater ...

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Application Information

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IPC IPC(8): A61D19/00A01K61/00
CPCY02A40/81
Inventor 杨国梁张宇飞王军毅
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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