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A method for artificial reproduction of money fish indoor cement pond

A technology for artificial reproduction and money fish, applied in fish farming, application, climate change adaptation, etc., can solve the problem of low relative controllability, and achieve the effect of high degree of artificial regulation, reduced use, and reduced loss

Active Publication Date: 2019-08-02
SHANGHAI FISHERIES RES INST
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  • Summary
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  • Description
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Problems solved by technology

[0003] At present, there are mainly two kinds of artificial reproduction techniques. One is to artificially induce natural spawning and fertilization in the environment of sea cages. This technology is greatly affected by environmental factors. The relative controllability of the wild parent is relatively low; the second is to realize the simultaneous release of male and female gametes through domestication of wild parents and intensive nutrition cultivation, as well as high-efficiency oxytocic agents and artificial oxytocin techniques

Method used

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Embodiment Construction

[0008] Production technique of the present invention comprises the steps:

[0009] 1. Intensive breeding of parents: From late November of last year to February of that year, put 3-year-old + money fish as a backup parent into an indoor cement pond for intensive winter cultivation. The area of ​​the cement breeding pond is 18-20m 2 , the water depth is 1.0m; the breeding density is 3-6 fish / m 2 , feed seawater puffed pellet feed and fresh live snails every day, feed seawater puffed pellet feed once in the morning and afternoon, feed 100±10g / pond each time, and feed fresh live snails once in the afternoon, a single pellet of snails should be less than The caliber of the money fish is suitable for swallowing the whole money fish. The snails are scalded twice in hot water at 70°C, rinsed in room temperature water and picked up with a needle with a needle. The complete snails contain muscles and gonads. Each feeding is 250-300g / Pool, absorb sewage once a day, change water once a...

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Abstract

An indoor cement pit artificial propagation method for scatophagus arguses includes the steps of scatophagus argus parent strengthening rearing, parent gonad synchronization control, expectant parentselection, artificial insemination and fertilized ovum sectional hatching. The method is characterized in that 3-month old scatophagus arguses are placed into an indoor cement pit and subjected to over-wintering strengthening rearing from the last ten-day period of November in a last year to February in a current year, scatophagus argus reserve male and female parents are separately stocked in different tanks in middle ten days of March, temperature and salt are increased step by step from the last ten-day period of November in the last year to April in the current year until water temperaturereaches 28-29 DEG C and salinity reaches 24-28, the scatophagus arguses are kept under water environment conditions for one month, the selected parents are subjected to artificial insemination to obtain fertilized ova, and the fertilized ova are hatched in a hatching cylinder in a sectional manner and then transferred into a fry rearing tank for hatching to obtain newly-hatched fries.

Description

technical field [0001] The invention relates to the artificial reproduction technology of fish belonging to the genus Dicaridaceae, in particular to the artificial reproduction technology of the indoor cement pond of the Dicariidae. Background technique [0002] Money fish (Scatophagus argus), commonly known as golden drum fish, belongs to Perciformes, Perciformes, Scatophagus family, and Scatophagus genus. The money fish is a euryalline fish, which is mainly distributed in the Indo-Pacific region, and is common in the brackish and fresh water of the river estuaries in the East my country Sea and South China Sea. Money fish is a traditional economic fish cultured in coastal ponds and cages in southern my country. It can be cultured in seawater, brackish water, and fresh water. Its seed source is mainly wild sea catch. The amount of resources has declined, and the seedlings obtained by sea fishing can no longer meet the seed supply demand of the goldenfish breeding market. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/17
CPCY02A40/81
Inventor 徐嘉波施永海张根玉谢永德陆根海邓平平税春张海明刘永士蒋飞
Owner SHANGHAI FISHERIES RES INST
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