Procambrus clarkii indoor artificial propagation method

A technology of Procambarus clarkii and artificial propagation, which is applied in fish farming, application, climate change adaptation, etc., and can solve problems such as poor operability, unstable quantity, and inability to form high-quality seedling production capacity.

Active Publication Date: 2010-10-13
ZHEJIANG INST OF FRESH WATER FISHERIES
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Problems solved by technology

At present, the production of Procambarus clarkii seed is basically in the state of natural reproduction and earthen pond cultivation, and there are shortcomings su

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] 1. Selection and matching of broodstock

[0026] According to the natural breeding time of Procambarus clarkii, broodstock are selected from June to August of that year, mainly through dissection and external observation, requiring complete limbs, no disease or injury, strong mobility, and the size is 30-50 grams. / Tail, the male of sexually mature Procambarus clarkii is obviously larger than the female, with thick chelicerae, a bright red molluscum on the outside of both ends, and the opening of the male genital opening at the base of the fifth pair of gaiters. The female is relatively small, with a swollen abdomen, and the female genital opening is at the base of the third pair of walking legs. According to the method of natural spawning and natural fertilization, male and female broodstock are matched at a ratio of 1 to 2:1.

[0027] 2. Temporary rearing of broodstock shrimp

[0028] The selected broodstock shrimps are temporarily raised in indoor cement pools acc...

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Abstract

The invention provides a procambrus clarkii indoor artificial propagation method, belonging to the freshwater shrimp breeding technical field. The method includes the following steps: 1) sorting and group matching of parent procambrus clarkii; 2) temporary culture of the parent procambrus clarkii; 3) induction concentrated synchronous oviposition; 4) artificial incubation and sorting of spawning procambrus clarkii; 5) cultivation of young procambrus clarkii. The procambrus clarkii indoor artificial propagation method ensures that procambrus clarkii can be successfully propagated indoors by artificially regulating the propagation condition of procambrus clarkii. The method is simple and has strong feasibility, the spawning rate thereof reaches 84%, fertility rate reaches 90%, hatching rate reaches 86%, survival rate reaches more than 80%, the situation that procambrus clarkii postlarvae can be obtained only by natural propagation under the existing condition is changed, the problem that procambrus clarkii postlarvae is scare is solved, and stable and batch postlarvae production capacity is formed. Meanwhile female procambrus clarkiis synchronously lay eggs in a relative concentrated way while natural propagation is in droves and postlarvae can not be quantitatively obtained in time; postlarvae stocking can be carried out ahead of time; and postlarvae specification is relatively uniform.

Description

technical field [0001] The invention belongs to the technical field of freshwater shrimp breeding, and in particular relates to an indoor artificial breeding method of Procambarus clarkii. Background technique [0002] Procam barus clarkii (Procam barus clarkii), also known as freshwater lobster, crayfish clarkii, local name soil lobster, crayfish, belongs to Arthropoda, Crustacea, Decapod, Insectidae, Crayfish subfamily, Procamera Shrimp. Originated in North America, it was introduced into Japan from the United States in 1918, and it entered the vicinity of Nanjing in my country from Japan in 1929. Procambarus clarkii has wide adaptability, strong fecundity, and rapid natural population development. It has become a species in freshwater water bodies in my country. It is now mainly distributed in the middle and lower reaches of the Yangtze River in Jiangsu, Anhui, Hubei, and Jiangxi. The shrimp has the characteristics of miscellaneous food, delicious taste and rich nutriti...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 黄鲜明顾志敏朱俊杰贾永义杨元杰沈勤松
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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