Female epinephelus moara and male E. septemfasciatus crossbreeding method

A technology for moire grouper and male grouper, which is applied in fish farming, application, climate change adaptation and other directions, can solve the problem of not many references, and achieves improved fertilization rate, individual size, and growth rate. quick effect

Inactive Publication Date: 2014-07-02
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

[0003] At present, there is no report on the hybrid breeding of moire grouper (♀) and seven-banded grouper (♂) at home and abroad. Although there are successful cases of distant hybridization among other grouper fishes, they all belong to tropical or subtropical species. , s

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Embodiment Construction

[0024] The principle of the present invention is: carry out distant hybridization with grouper species parents having different biological characteristics and living in different sea areas, and the chromosome karyotypes are the same as 2n=48t, which has the cytological basis of hybridization. The crossbreeding of grouper (♀) and grouper seven-banded (♂) can be fertilized normally, and the larvae, juveniles, and juveniles can grow normally, which shows that grouper (♀) and grouper seven-banded (♂) can be fertilized normally. ♂) The two parents have better compatibility, so as to obtain a combination with excellent characteristics and traits, adopt the temperature control of broodstock breeding, and strengthen the nutrition of the broodstock, which is to ensure the offspring (fertilized eggs, juvenile fish) produced by their parents ) are hybrid offspring with healthy constitution, correct expression of their excellent characteristics, and even the excellent characteristics of th...

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Abstract

The invention discloses a female epinephelus moara and male E. septemfasciatus crossbreeding method, and belongs to the technical field of marine fish breeding. The female epinephelus moara and male E. septemfasciatus crossbreeding method comprises the steps that parent selection is carried out, wherein a four to five-year-old healthy mature female epinephelus moara is selected as a female parent, and a five to six-year-old healthy mature male E. septemfasciatus is selected as a male parent; parent breeding is carried out, the female parent and the male parent are bred respectively under the conditions that the temperature of water for breeding the female epinephelus moara parent ranges from 12 DEG C to 26 DEG C, the temperature of water for breeding the male E. septemfasciatus parent ranges from 8 DEG C to 26 DEG C, the salinity ranges from 2.8 % to 3.2 %, the pH value ranges from 7.8 to 8.2, and the content of dissolved oxygen is larger than or equal to 5 mg/L; artificial insemination is carried out; hatch is carried out. According to the female epinephelus moara and male E. septemfasciatus crossbreeding method, gonads of male and female parents of two varieties mature synchronously through the technical means such as temperature regulation and nutrition regulation; a filial generation is obtained through artificial insemination, and has the excellent characteristics of the high growth rate and resistance to low temperature.

Description

technical field [0001] The invention belongs to the technical field of seawater fish breeding, and in particular relates to a hybrid breeding technology of moire grouper female and seven-banded grouper male. Background technique [0002] Moire grouper (Epinephelus moara) and seven-banded grouper (E.septemfasciatus) belong to the order Perciformes, the family Serranidae, the subfamily Epinephelinae, and the genus Grouper. Moire grouper is a warm-temperate middle-lower fish, mainly distributed in the East China Sea and South China Sea, and is a large fish species with a relatively fast growth rate among groupers; seven-banded grouper is a cold-temperate reef fish, mainly distributed in On the coasts of the Yellow Sea and the East China Sea, it is the only cold-temperate rare fish in the north. It has the characteristics of large size, low temperature resistance, and high nutritional value. It is one of the excellent species for seawater farming. The female parent of moire gro...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈超李炎璐翟介明李波
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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