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Artificial fertilization and hatching method for collichthys lucidus

A technology of spiny plum and juvenile fish, applied in the field of mariculture, can solve the problems of limited number of broodstock, low fertilization rate, easy loss of mature eggs, etc.

Active Publication Date: 2021-09-14
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these methods are due to the limited number of broodstock of the spiny head plum boy, and the mature eggs of the broodstock are easy to lose, the amount of semen of the male fish is less, and the development of the male and female gonads is not synchronized, resulting in a low fertilization rate; and the spiny head The artificial hatching technology of plum boy fish is not perfect, it is only limited to the experimental stage, and it cannot be operated in large quantities

Method used

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  • Artificial fertilization and hatching method for collichthys lucidus
  • Artificial fertilization and hatching method for collichthys lucidus
  • Artificial fertilization and hatching method for collichthys lucidus

Examples

Experimental program
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Embodiment 1

[0023] Collection and screening of parents: the spiny head plum boy migrates to the Sanduao waters of Ningde, Fujian Province from mid-May to mid-June every year, where it spawns in clusters. During the spawning period, the surface temperature of the sea area is 22-25°C, and the salinity is 19-22; the tide is fast, generally at 0.8-1.3m / s. According to the characteristic of the obvious clustering during the spawning period of the spiny plum boy, from June 16, 2019 to June 20, 2019, that is, from May 14th to May 18th of the lunar calendar, nets were used in the spawning grounds. The fishing method can collect enough spiny head plum boy broodstock. After the fish is caught, the male and female are judged according to the degree of abdominal swelling. When they are sexually mature, the gonads (testis) of the male broodstock are plump and thick. When lightly pressed on the abdomen of the fish, thick milky white semen flows out, which is linear in the water and spreads out quickly....

Embodiment 2

[0035] A spiny head plum boy hatching device, comprising an incubator 1, the front of the incubator 1 is provided with a door 2, the inner lower side of the incubator 1 is provided with an incubation frame 3, and the upper side of the incubator 1 is provided with a stirring assembly 4 , the interior of the incubator 1 is provided with a temperature sensor 5 symmetrically front and rear, the left front side of the end of the incubator 1 is provided with a control panel 6, and the upper side of the back of the incubator 1 is provided with a thermal insulation assembly 7.

[0036] Examples, please refer to figure 1 , 2 And 3, stirring assembly 4 comprises stirring motor 401, driving rod 402 and stirring rod 403, and the driving end of stirring motor 401 is equipped with driving rod 402, and the other end of driving rod 402 is provided with stirring rod 403, and stirring motor 401 is positioned at incubator 1 The end is set, the stirring rod 403 is made of long feather material, ...

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Abstract

According to an artificial fertilization and hatching method for collichthys lucidus, a large number of high-quality parents are obtained by utilizing the genital migration characteristic of the collichthys lucidus, the male and female proportion of the artificial fertilization of the collichthys lucidus is 1.2: 1, a dry fertilization method is adopted, the fertilization rate reaches 95% or above, the fry hatching rate can reach 70.0-73.8%, and the requirement of economic production can be met.

Description

technical field [0001] The invention relates to an artificial insemination and hatching method of spiny-headed plum boy, and belongs to the technical field of marine culture. Background technique [0002] Collichthys lucidus is an important small benthic economic fish in my country, widely distributed in the Yellow Sea, East China Sea and South China Sea. It is one of the high-end aquatic products that coastal residents like to eat. However, the quantity of spiny-headed plum on the market is very limited and the price is high, which cannot meet the market demand at all. Chinese patent document CN 107114283A discloses a method of artificial breeding of spiny head plumeria, through the extraction and dilution concentration of spiny head plumeria semen, the ratio of sperm and egg mixing and insemination time, to improve the fertilization of spiny head plumeria rate, hatching rate and fry survival rate; Chinese patent document CN 111264423A discloses a method for raising seedli...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17A01K63/06
CPCA01K61/10A01K61/17A01K63/065Y02A40/81
Inventor 宋炜熊逸飞王鲁民
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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