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

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

CN100482184CInactive Publication Date: 2009-04-29ZHEJIANG INST OF FRESH WATER FISHERIES
2 Cites 0 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cross breeding method of Macrobrachium rosenbergu
  • Cross breeding method of Macrobrachium rosenbergu
  • Cross breeding method of Macrobrachium rosenbergu

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
29 Apr 2009
Publication
CN100482184C
IPC
A61D19/00; A01K61/00
CPC
Y02A40/81
Inventors
杨国梁; 张宇飞