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Artificial breeding method for improving fertilization rate and hatching rate of grass goldfish

A technology of artificial cultivation and fertilization rate, applied in fish farming, climate change adaptation, application, etc., can solve problems such as insufficient physical fitness, low fertilization rate of fish eggs, low seedling emergence rate, etc., to improve survival rate and improve cultivation rate, the effect of increasing the fertilization rate

Inactive Publication Date: 2017-12-15
天津市金水族水产养殖有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to improper breeding methods, there are often disadvantages in the breeding process of golden carp, such as low fertilization rate of fish eggs and unreasonable hatching conditions of fish eggs, which lead to low seedling emergence rate, resulting in low breeding rate of golden carp and insufficient color of fish fry. Gorgeous, not strong enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of artificial breeding method that embodiment 1 improves grass goldfish fertilization rate and hatchability, comprises the following steps:

[0018] (1) Pond preparation: first soak and rinse the built cement pool with water. After cleaning, the pH value of the water in the cement pool should be stable above 8.5, and then use 20g / m 3 Scrub the wall and bottom of the pool with potassium permanganate solution, soak for 12 hours, then rinse with clean water and inject water;

[0019] (2) Screening and grouping of broodstock: select broodstock individuals with healthy physique, bright colors, no injuries and mature gonads, wherein the ratio of selected female broodstock to male broodstock is 1:2;

[0020] (3) Breeding of broodstock: using micro-flow water at a temperature of 18°C, the selected broodstock are subdivided into ponds to strengthen cultivation, and the amount of feed fed every day is 1% of the fish body weight, and the oxytocin dioconone and oxytocin are ...

Embodiment 2

[0028] Embodiment 2 A kind of artificial breeding method that improves grass goldfish fertilization rate and hatchability, comprises the following steps:

[0029] (1) Pond preparation: first soak and rinse the built cement pool with water. After cleaning, the pH value of the water in the cement pool should be stable above 8.5, and then use 20g / m 3 Scrub the wall and bottom of the pool with potassium permanganate solution, soak for 12 hours, then rinse with clean water and inject water;

[0030] (2) Screening and grouping of broodstock: select broodstock individuals with healthy physique, bright colors, no injuries and mature gonads, wherein the ratio of selected female broodstock to male broodstock is 1:3;

[0031] (3) Breeding of broodstock: using micro-flow water at a temperature of 22°C, the selected broodstock are subdivided into ponds to strengthen cultivation, the amount of feed fed every day is 3% of the fish body weight, and the oxytocin dioconone and oxytocin are inje...

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Abstract

The invention provides an artificial breeding method for improving the fertilization rate and the hatching rate of grass goldfish. The artificial breeding method comprises the following steps of pond preparation, parent fish screening and group matching, parent fish feeding, antenatal preparation and spawning of parent fish, hatching of fertilized ova and fry rearing and fry management. According to the method, a spawning agent is injected into selected parent fish, artificial sperm and egg extrusion is performed after waterflow stimulation, and artificial fertilization is performed. Compared with a traditional method for stimulating parent fish to rut purely through waterflow and performing natural fertilization, the fertilization rate, spawning rate and sperm-egg binding rate can be improved. A growth environment is reasonably arranged for fertilized ova, the survival rate of the fertilized ova is greatly improved, and accordingly the breeding rate of grass goldfish is improved. Net dragging exercises are performed during fry growth, are conductive to health growth of fish bodies and facilitate screening of higher-quality grass goldfish.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an artificial cultivation method for improving the fertilization rate and hatching rate of golden carp. Background technique [0002] Grass goldfish, also known as golden crucian carp, has a history of more than 2,000 years in my country. Now, grass goldfish has been found all over the world. It is loved by people all over the world for its bright colors, dignified body and elegant swimming style. However, due to improper breeding methods, there are often disadvantages in the breeding process of golden carp, such as low fertilization rate of fish eggs and unreasonable hatching conditions of fish eggs, which lead to low seedling emergence rate, resulting in low breeding rate of golden carp and insufficient color of fish fry. Gorgeous, not strong enough. The present invention aims at inventing a method for artificially cultivating golden carp with high fertilization rate and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/17
CPCA01K61/17Y02A40/81
Inventor 王云祥曲木赵子续张宝龙翟胜利
Owner 天津市金水族水产养殖有限公司
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