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Distant hybrid breeding method of red-spotted grouper and saddle-banded grouper

A kind of technology of red spot grouper and saddle grouper

Active Publication Date: 2020-01-17
FISHERIES RES INST OF FUJIAN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Under the conditions of artificial breeding, the spawning time of the red-spotted grouper is from April to June every year, and the spawning time is concentrated and the cycle is short; the development time of the saddle grouper is June and October every year; And the development time is different, it is difficult to effectively hybridize

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  • Distant hybrid breeding method of red-spotted grouper and saddle-banded grouper
  • Distant hybrid breeding method of red-spotted grouper and saddle-banded grouper

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Embodiment Construction

[0034] The invention relates to a crossbreeding method of a red-spotted grouper female and a saddle-banded grouper male, which comprises parent selection before temperature control, parent cultivation, parent nutrition strengthening, parent artificial induction, artificial insemination and hatching.

[0035] 1. Parental selection before temperature control

[0036] This experiment was carried out from January to February 2015. The female red grouper was selected from 3-5 years old, weighing 0.5-1kg, normal body shape, strong vitality, and no nerve necrosis virus-carrying red grouper. The male of the saddle grouper is selected to be above 6 years old, with normal body shape, strong vitality, and no nerve necrosis virus-carrying grouper. Virus detection is to take blood through the tail artery, which is conducive to the detection of nerve necrosis virus by fluorescent quantitative PCR. The grouper with negative test results is selected as broodstock and raised separately.

[00...

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Abstract

The invention discloses an epinephelus akaara and epinephelus lanceolatus distant hybridization breeding method, wherein two kinds of epinephelus are respectively female fish of the epinephelus akaaraand male fish of the epinephelus lanceolatus. The method comprises parental selection before temperature control, parental development, parental nutrition enhancement, parental artificial induce spawning, artificial insemination, and hatching. The method enables the two kinds of distant related epinephelus to hybridize successfully, and a hybrid variety has a faster growth rate than the female parent, and has a temperature adaptation range exceeding that of the parents.

Description

technical field [0001] The invention relates to the field of aquaculture. Background technique [0002] Both the red-spotted grouper (Epinephelus akaara) and the saddle-banded grouper (E.lanceolatus) belong to the order Perciformes, the family Epinephelidae, and the genus Grouper. Red-spotted grouper, commonly known as red-spotted grouper, is a cold-water fish and an important seawater economic fish in Asia. The saddle grouper is mainly produced in the waters of Southeast Asia and Oceania. It is a large fish at the bottom of the warm-temperate ocean. It is the largest and fastest-growing individual among the groupers. Grouper is rich in nutrition and delicious in meat quality. It is one of the rare marine fishes with high nutritional value, and it is also an important mariculture species in the coastal areas of South China. With the rapid development of the grouper aquaculture industry, the cultured species in coastal areas tend to be single, so it is urgent to cultivate n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 郑乐云吴水清黄种持罗辉玉邱峰岩林克冰葛辉吴精灵林金波梁贵福陈新明
Owner FISHERIES RES INST OF FUJIAN
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