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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: 2009-04-29
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method is inconvenient to implement

Method used

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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 implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] The population of Macrobrachium rosenbergii, which has not been degraded in the introduction of undeveloped germplasm, is a natural population, and has been carefully cultivated for selection and conservation (such as Figure 7 Shown), select 10,200 female broodstocks and 2,000 male broodstocks to enter the nursery greenhouse, and the water temperature is controlled at 24-25°C.

[0032] Burmese species inbred A 1 , Orthogonality B between Burmese species A and native species 1 + , Reversed B 1 - , self-breeding seedling experiment of native species. Quadrature B 1 + Breeding such as figure 1 Shown, reverse cross B 1 - Breeding such as figure 2 shown.

[0033] See Table 1 for the mating seed germination rates of the four mating combinations. It can be seen from Table 1 that the order of seed sporulation rate o...

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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 a cross-breeding technique for introduced freshwater prawns, in particular to a method for cross-breeding Macrobrachium rosenbergii. Background technique [0002] Macrobrachium rosenbergii (Macrobrachium rosenbergii), English name Giant freshwater prawn, was successfully domesticated in Malaysia in 1961 by Dr. Lin Shaowen, a Chinese UN official and biologist, and has since been promoted in many countries around the world. my country introduced it from Japan in 1976, gradually carried out large-scale breeding in the late 1980s and formed industrialized development in the middle and late 1990s. However, in the process of industrialization, two major problems have emerged, namely germplasm degeneration and the outbreak of muscle leukosis. Macrobrachium rosenbergii muscle white turbidity has been conquered by scientific and technological personnel of Zhejiang Freshwater Fisheries Research Institute and other units in recent years,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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