Method for breeding tridentiger trigonocephalus by artificial induced spawning and insemination

A technology for artificially induced spawning of gobies, applied in fish farming, medical science, climate change adaptation, etc., to achieve the effect of increasing the ripening rate

Inactive Publication Date: 2010-02-17
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to aim at the problems existing in the artificial reproduction and seedling raising techniques of the gobies, and to provide a seed breeding method for artificially induced insemination of the gobies

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  • Method for breeding tridentiger trigonocephalus by artificial induced spawning and insemination
  • Method for breeding tridentiger trigonocephalus by artificial induced spawning and insemination
  • Method for breeding tridentiger trigonocephalus by artificial induced spawning and insemination

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Embodiment Construction

[0009] The operation of the present invention is carried out in the following order:

[0010] 1. Screening of broodstock: The gobie broodstock caught in natural waters will be oxygenated and transported back to the breeding ground. First of all, male and female identification is carried out. The broad and flat head and prominent cheek muscles are the characteristics of male fish, and the triangular head is the characteristic of female fish. In terms of external shape, the sex of the parent fish can be directly distinguished by observing the shape of the head of the parent fish, which provides a basis for the selection of male and female fish. Fast identification method. In addition, there are extremely significant differences between male and female broodstock body length / body height, body length / head length, head length / eye diameter and head length / eye distance, and there are significant differences in head length / nose length. Length / eye diameter and head length / nose length ...

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Abstract

The invention provides a method for breeding tridentiger trigonocephalus by artificial induced spawning and insemination, which relates to the artificial propagation of gobies. The method required tobe provided for artificially breeding the tridentiger trigonocephalus comprises the steps of ripe fish screening, maturity acceleration, insemination, incubation and larval fish culture, wherein the maturity acceleration of ripe fishes uses luteotropin to release hormone analogues, domperidone maleate and chorionic gonadotropin, and is characterized in that the three hormones are used twice for the maturity acceleration; in the maturity acceleration, the water temperature of culture is between 18 and 21 DEG C, the salinity is between 2 and 6, the dissolved oxygen is between 3.5 and 6.5mg/L, and the pH is between 7.5 and 9.0; and after the second time of the maturity acceleration, in 8 to 10 hours, mature ova and mature sperms are selected for artificial insemination which comprises the following steps that: the activated sperms are poured on the ova for sufficient contact so as to obtain fertilized ova; the fertilized ova are placed in a hatchery pond for incubation; and the hatched larval fish is placed in a culture pond for incubation, and chlorella and yolk powder of eggs are placed in water from the third day after the larval fish is hatched to feed food for the larval fish. The method is used for the artificial breeding of the tridentiger trigonocephalus.

Description

Technical field: [0001] The invention relates to an artificial propagation method of goby fish. Background technique [0002] There are three main methods of fish artificial reproduction: ①Injection to induce labor: Artificial injection of ripening and oxytocin agents, artificial insemination after mature sperm and eggs; ② Direct artificial insemination: After screening the caught broodstock, the sperm and eggs are directly taken out Carry out artificial insemination; ③Ecological reproduction method: put broodstock in a breeding box artificially regulating ecological factors to make them mature, estrus, spawn, fertilize and hatch naturally. The method of artificially breeding fish fry is to inject specific exogenous hormones regularly to promote fish maturation and spawning. After reaching the effect period, a specific artificial insemination method is adopted to mix sperm and eggs to obtain fertilized eggs, and the fertilized eggs develop Embryos, in a specific hatching en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A61D19/02
CPCY02A40/81
Inventor 冯广朋庄平章龙珍刘鉴毅
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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