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Artificial maturing method for exopalaemon carinicauda in anestrous seasons

A non-reproductive technology for white prawns, which is applied in the field of artificial maturation in non-breeding seasons of white prawns, can solve problems such as difficulties in obtaining experimental materials, and achieve the effects of good controllability, strong planning, and promotion of gonad development

Inactive Publication Date: 2013-06-05
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the breeding behavior of white prawn ends with the gradual drop of water temperature in autumn and winter under natural conditions, the production of seedlings of white prawn and the acquisition of experimental materials in the early stage of white prawn in the laboratory will be very difficult, and the development A method is proposed to realize the gonad development and spawning reproduction of white prawns in the non-breeding season by simulating the characteristics of spring water temperature gradually rising and photoperiod prolonging under natural conditions, so as to achieve the annual reproduction of white prawns. The annual breeding in the laboratory and the off-season seed breeding in the production unit provided technical support

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0020] Example: Ripening promotion and seedling cultivation experiments in indoor cement ponds and plastic water tanks for white prawns

[0021] This example is carried out according to the following steps: (1) Preparation: the low-salt seawater (15±1‰) sterilized by strong chlorine essence is neutralized by sodium thiosulfate and fully aerated, and then pumped into the seawater sterilized by potassium permanganate. 3 indoor cement pools (3.0×1.8×1.2m, effective water body 5m 3 ) for standby; (2) Broodstock entering the pond (or entering the tank): On November 20, 2012, select the white shrimp with smooth and complete body surface, no injury, body length greater than 4cm, and average weight of about 1.5g to breed in ponds Put it into two of the above indoor cement pools (3Kg / pool, density 200 tails / m 2 ), another 60 broodstock (female to male ratio 2:1) were evenly distributed to 2 plastic water tanks (70×55×45cm) for 7 days, during which the natural temperature was maintaine...

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Abstract

The invention relates to an artificial maturing method for exopalaemon carinicauda in anestrous seasons, in particular to an artificial reproduction method for exopalaemon carinicauda in autumns and winters by means of regulating and controlling the temperature and the illumination cycle and enriching nutrients for the exopalaemon carinicauda. The artificial maturing method mainly includes controlling the temperature of water; regulating and controlling the illumination cycle; and enriching nutrients for the exopalaemon carinicauda. Temperature control equipment simulates a procedure that the temperature of water in springs rises gradually so as to control the temperature of the water; fluorescent lamps and a timer simulate a procedure that the illumination cycle is gradually prolonged in the springs so as to regulate and control the illumination cycle; and fresh baits such as nereid are fed to the exopalaemon carinicauda to enrich nutrient supplied for the exopalaemon carinicauda in a gonad development procedure. The exopalaemon carinicauda can smoothly reproduce by laying eggs after being bred for 2-3 weeks under the condition. The artificial maturing method has the advantages that characteristics that the temperature of the water gradually rises in the springs and the illumination cycle is gradually prolonged under natural conditions are simulated, so that gonads of the exopalaemon carinicauda are developed in the anestrous seasons, the exopalaemon carinicauda reproduces by laying the eggs in the anestrous seasons, and the purpose of controlling reproduction of the exopalaemon carinicauda throughout the year is achieved.

Description

technical field [0001] The invention relates to a method for artificially promoting ripening of white prawns in non-breeding seasons, in particular to a method for realizing egg-laying and breeding of white prawns in autumn and winter by means of temperature and light cycle regulation and supplementary nutrition enhancement, which belongs to aquaculture technology field. This technology can be used to realize the annual breeding of white shrimp under laboratory conditions and the off-season seed breeding of production units. Background technique [0002] The white prawn is a bottom-dwelling shrimp in the temperate tropical sea area, with the highest yield in the Yellow Sea and the Bohai Sea. It is one of the three unique economic shrimps in China, and its output is second only to the Chinese prawn and the Chinese hairy shrimp. White prawns have strong environmental adaptability, fast growth, good meat quality, high economic value, and considerable economic benefits from far...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张成松相建海李富花于奎杰
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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