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Method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells

A technology of artificial induced spawning and American shad, applied in climate change adaptation, fish farming, application, etc., can solve the problems of low fish fry yield and poor quality, and achieve the goal of solving large-scale production problems, reducing damage, and improving fertilization rate Effect

Inactive Publication Date: 2010-02-10
江阴市申港三鲜养殖有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method that can overcome the defects of low fry yield and poor quality in the existing American shad artificial induced labor, fertilization and hatching of fertilized eggs; through special treatment of artificial induced labor, the scales of American shad are avoided from falling off, and the artificial fertilization step is optimized. , improve the fertilization rate, not only can reduce the labor intensity, but also can significantly increase the hatching rate of American shad artificial induction, insemination and fertilized egg hatching method

Method used

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  • Method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells
  • Method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells
  • Method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells

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Effect test

Embodiment 1

[0027] Embodiment 1: a kind of American shad artificial oxytocin, insemination and hatching method of fertilized eggs of the present invention adopt the following hatching steps:

[0028] Location: Base of Yangtze River Rare Fish Conservation Research Center

[0029] 1. Artificial induced labor process

[0030] ①Preparation process Catch and select American shad with good maturity in 8-acre breeding ponds, and transport them to an area of ​​20m2 through deep well water with a salinity of 5‰ 2 , temporarily raised in a cement pool with a water depth of 0.8m; and equipped with an oxytocin needle and a thin towel of 0.4×0.2m.

[0031] ② Artificial induction of labor using luteinizing hormone-releasing hormone analogues (LRH-A 2 ) and fish oxytocin auxiliaries (Ningbo Hormone Products Co., Ltd.) are compatible to oxytocin broodstock. Two injections at the base of the dorsal fin: the first time, the female shad injection dose: 60μg LRH-A 2 +10mg fish oxytocin adjuvant / Kg, no in...

Embodiment 2

[0040] Embodiment 2: a kind of American shad artificial induced labor, insemination and hatching method of fertilized eggs of the present invention adopt the following hatching steps:

[0041] Location: Jiangyin Shengang Sanxian Breeding Co., Ltd.

[0042] 1. Artificial induced labor process

[0043] ① During the preparation process, American shad with good maturity was caught and selected in 8-acre breeding ponds, and transported to an area of ​​20m2 by deep well water with a salinity of 5‰ 2 , temporarily raised in a cement pool with a water depth of 0.9m; and equipped with an oxytocin needle and a thin towel of 0.4×0.2m.

[0044] ② Artificial induced labor using luteinizing hormone-releasing hormone analogs (LRH-A 2 ) and fish oxytocin auxiliaries (Ningbo Hormone Products Co., Ltd.) are compatible to oxytocin broodstock. Two injections at the base of the dorsal fin: the first time, the female shad injection dose: 60μg LRH-A 2 +10mg fish oxytocin adjuvant / Kg, no injectio...

Embodiment 3

[0054] Embodiment 3: a kind of American shad artificial induced labor, insemination and hatching method of fertilized eggs of the present invention adopt the following hatching steps:

[0055] Location: Jiangyin Fisheries Guidance Station Base

[0056] 1. Artificial induced labor process

[0057] ①Preparation process Catch and select American shad with good maturity in 8-acre breeding ponds, and transport them to an area of ​​20m2 through deep well water with a salinity of 5‰ 2 , temporarily raised in a cement pool with a water depth of 1.0m; and equipped with an oxytocin needle and a thin towel of 0.4×0.2m.

[0058] ② Artificial induction of labor using luteinizing hormone-releasing hormone analogues (LRH-A 2 ) and fish oxytocin auxiliaries (Ningbo Hormone Products Co., Ltd.) are compatible to oxytocin broodstock. Two injections at the base of the dorsal fin: the first time, the female shad injection dose: 60μg LRH-A 2 +10mg fish oxytocin aid / Kg, no injection for male fis...

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Abstract

The invention relates to a method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells, belonging to the technical field of fish reproduction. The method comprises the following hatching steps: preparation process of transporting ripe fishes, feeding momentarily, and the like and an artificial parturition hastening process of injecting hormone twice; completing an artificial insemination process by two persons in a matching mode; adopting a hatching process of a running water hatching device without dead angles at hatching water temperature below 16-22 DEG C; and opening in time for feeding after fries are hatched for 2-3 days. The method is reasonable and scientific, optimizes an artificial insemination technology, manufactures the runningwater hatching device without dead angles, has convenient and reliable operation, and can ensure the stable production of fries and better solve the problem of scale production of American reeves shadfries; and the hatching rate of the germ cells reaches above 80 percent.

Description

technical field [0001] The invention relates to a method for artificially inducing labor, insemination and hatching of fertilized eggs of American shad, and belongs to the technical field of fish reproduction. Background technique [0002] American shad, scientific name Alosa sapidissima, English name American shad, also known as American shad, belongs to the genus Sprataceae of the herring family. Like the endangered Chinese shad (Tenualosa reevesii), it is fresh, fat and beautiful, and is an anadromous fish with high economic value. [0003] Due to the extremely high market prospect of American shad in our country, a climax of hatching and breeding of fertilized eggs of American shad was launched in my country in 2003. At present, it has been carried out in more than ten provinces and cities such as Guangdong, Zhejiang, Jiangsu, Shanghai, Hubei, and Hunan. American shad is cultivated on a large scale; however, due to the increasing difficulty of introducing fertilized eggs...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 郑金良顾若波张呈祥徐钢春徐跑张宪中
Owner 江阴市申港三鲜养殖有限公司
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