Artificial hybridization breeding method for groupers high in growth speed

An artificial hybridization, grouper technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of differences in sexual maturity time, difficulty in hybrid breeding of groupers, and different geographical distribution, and achieve fast growth rate. , The effect of excellent appearance and large individual
CN110521641AActive Publication Date: 2019-12-03YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
Publication Date
2019-12-03

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Abstract

The invention relates to an artificial hybridization breeding method for groupers high in growth speed, and belongs to the technical field of aquaculture. The method comprises the steps of parent selection, cage culture of parent red-spotted groupers, industrial culture of parent epinephelus tukula, sexual transformation of the epinephelus tukula, freeze preservation of seminal fluid of the epinephelus tukula, spawning induction of the parent red-spotted groupers, artificial insemination and hatching of fertilized eggs. By using the sperm freeze preservation technology, an epinephelus tukula sperm bank is built, reproductive isolation between the two kinds of groupers is broken through, and a new excellent hybrid variety which is high in growth speed is obtained. The problem is solved thatmale parent epinephelus tukula produces fewer sperms, and consequently, production is hindered, the productivity is greatly improved, and grouper breeding work is facilitated.
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Description

technical field

[0001] The invention relates to the technical field of aquaculture, in particular to an artificial cross-breeding method for fast-growing grouper. Background technique

[0002] Grouper is an important marine economic fish in my country. In recent years, the marine aquaculture industry has developed rapidly, and the grouper aquaculture industry has also flourished, covering the northern and southern coastal areas of China. However, there are some difficulties in grouper culture, such as seed cultivation, high deformity rate, many diseases and degradation of germplasm resources. In order to promote the healthy and sustainable development of grouper aquaculture, cross-breeding as a new breed cultivation method has been applied by domestic and foreign scholars and aquaculture enterprises.

[0003] The red-spotted grouper (Epinephelus akaara) and the blue-bodied large grouper (Epinephelus tukula) belong to the order Perciformes, the family Serranidae, the subfam...

Claims

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