Telegenesis and oosperm hatching technique for whitebait

A technology for fertilized eggs and whitebait, applied in fish farming, climate change adaptation, application, etc., can solve the problems of low fry yield and poor quality, and achieve the effect of improving fry yield and quality

Active Publication Date: 2008-07-16
江苏太滆水产科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new method for artificial insemination of whitebait and hatching of fertilized eggs, which overcomes the defects of low fry yield and poor quality of the existing method for artificial insemination of whitebait and hatching of fertilized eggs

Method used

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Embodiment Construction

[0029] The present invention will be further described below by specific embodiment:

[0030] A whitebait artificial insemination and fertilized egg hatching process has 1) artificial insemination process, 2) fertilized egg hatching process, specifically:

[0031] 1) Artificial insemination process:

[0032] a preparation process, catching whitebait: catch whitebait during the breeding season of whitebait, select male and female whitebait with better maturity for later use, catch whitebait with gillnets of appropriate specifications, in order to ensure the freshness of whitebait, every 1 Take the net once an hour. After the whitebait is caught on the boat, select the whitebait with better maturity in time. The ratio of male to female is 2:1, and it can also be 1:1 according to the situation. Dry it with a clean dry towel The water content of the fish body is reserved. Judgment of maturity: Pick up the female fish, and the eggs can be seen to flow, which means the maturity is...

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Abstract

The invention relates to the technical field of fish propagating, in particular to a technique of artificial insemination and hatching zygote for whitebait and is provided with 1. artificial insemination process: extruding semen and an egg granule in a container, adding normal saline of 0.004 to 0.008 percent, stirring and standing for 2 to 3 minutes; 2. fertilized egg hatching process and prophase hatching: the fertilized eggs are arranged in a hatching chamber and is poured into a hatching tray after sterilized by the normal saline of 0.004 to 0.008 percent and hatched by adding purifying water; the temperature of the hatching chamber is 16 to 20 DEG C, avoiding air, lighting and avoiding from being directly irradiated by sunshine and changing water as well as controlling the water temperature; anaphase management: after the fertilized eggs begin to emerge, stopping changing water and sterilizing, adding purifying water and arranging the fries beginning to swim flatly into a culture pool after 48 to 72 hours. The technique of the invention adopts a reasonable and scientific method and has the processes of sterilizing, water quality control, temperature control, appliance control and environment control, etc., which greatly improves the yield and quality of the fries.

Description

technical field [0001] The invention relates to the technical field of fish reproduction, in particular to a technique for artificial insemination of whitebait and hatching of fertilized eggs. Background technique [0002] Whitebait, commonly known as noodle fish, or rolling stick fish, is a few inches long and slightly round. The whole fish is white, transparent, soft, and scaleless except for two black spots on the eyes. The production period is concentrated in mid-May every year. From mid to late June, this is the peak season for fishing. The poem written by Wang Shucheng, a poet of the Ming Dynasty, is a tribute to the whitebait, which is written by Zhang Xian in the Song Dynasty. The verse of "Xia perch" puts silverfish and perch together, and lists them as treasures among fish. Whitebait is rich in nutrition. Every 100 grams of whitebait contains 8.2 grams of protein, 0.3 grams of fat, 1.4 grams of carbohydrates, 258 mg of calcium, 102 mg of phosphorus, 0.5 mg of iro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 杨欣单金根沈小平陈曹华
Owner 江苏太滆水产科技有限公司
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