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Artificial spawning induction method for Trochus pyramis born

A technology of artificial induced labor and horseshoe snails, applied in fish farming, application, climate change adaptation, etc., can solve the problems of reducing fertilization rate and achieve the effect of easy operation

Active Publication Date: 2017-11-24
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to: overcome the problems of significantly reducing the fertilization rate in the existing tower-shaped horseshoe snail artificial induced labor method, and provide a tower-shaped horseshoe snail that can not only improve the induced labor rate, but also ensure a high fertilization rate, and is easy to operate. Artificial induced labor method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Collect tower-shaped horseshoe snail broodstock, select individuals with a snail width of 5 cm and strong foot stretching ability, and promote maturation in a culture pond with benthic diatoms, and continuously inflate them. When the water temperature is 25°C, take out the broccoli, wash them clean, put them in a 20L plastic box, put 19 broccoli, add normal temperature seawater, and the height of the water body is 25cm. Move the plastic box to a sunny place to inflate and expose to the sun. The start time is 2:00 pm and the end time is 4:40 pm. The seawater temperature was measured at 30°C at the end of the treatment. Then the seawater is sucked out, the plastic box is moved into the room, and fresh normal temperature filtered seawater is added to inflate it. Ejaculation was observed half an hour later, and ovulation was observed subsequently, and the discharge individual was counted. Among the 19 broodstock, 17 were released, including 11 females and 6 males, and the ...

Embodiment 2

[0017] Collect tower-shaped horseshoe snail broodstock, select individuals with a snail width of 5 cm and strong foot stretching ability, and promote maturation in a culture pond with benthic diatoms, and continuously inflate them. The water temperature is 26°C, take out the broilers, put them in a 40L plastic basin, put 60 broilers, add normal temperature seawater, the height of the water body is 15cm. Move the plastic pot to a sunny place to inflate and expose to the sun. The start time is 1:30 pm and the end time is 4:30 pm. The seawater temperature was 32°C at the end of the treatment. Then the seawater is sucked out, the plastic box is moved into the room, and fresh normal temperature filtered seawater is added to inflate it. Ejaculation was observed around 5:00, followed by ovulation, and the discharge individuals were counted. Among the 60 broodstock, there were 18 females and 32 males, and the discharge rate reached 83%. Microscopic observation showed that the fertil...

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Abstract

The invention discloses an artificial spawning induction method for Trochus pyramis born. The method comprises the steps that (1) Trochus pyramis born parent cowries were put in a breeding pool with culture of benthic diatom for maturity acceleration breeding, the cowries are put into normal-temperature seawater when the water temperature in the breeding pool reaches 25 DEG C or above, and the water temperature is increased gradually through sun exposure and continuous air inflation; and (2) the seawater exposed to sunlight is discharged and replaced by fresh filtered seawater, the water temperature is recovered to the normal temperature, air is inflated indoors and spawning waiting is conducted. The method disclosed by the invention is characterized in that natural temperature differences are utilized; sunlight exposure takes the place of dedicated ultraviolet ray generators and temperature rise devices; an ultraviolet ray induction method and a temperature variation induction method are integrated to induce sperm egg discharge of Trochus pyramis born. The spawning induction method disclosed by the invention has the advantages that the spawning induction rate reaches up to 89%; and the fertility rate reaches up to 100%. The method disclosed by the invention has the advantages that no influences are brought to creatures and environments; and the method is safe, reliable, efficiency and easy in operations.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and more specifically, the invention relates to a method for artificially inducing birth of a tower-shaped horseshoe snail. Background technique [0002] Tectus pyramis belongs to the phylum Molluscs, Gastropoda, Probranchia, Primitive Gastropoda, Tectus family. It is mainly distributed in Guangdong, Guangxi and Hainan in China. And other coastal areas and southwest sandy sea areas, mainly live in shallow sea rocks or coral reefs from the subtidal zone in the warm water area to a water depth of about 10m, and feed on algae. The tower-shaped horseshoe snail has delicious meat and rich nutrition. The shell can be used as decoration, and the shell powder can be used as medicine or as a blend of spray paint. It has high economic value and is an important economic shellfish. At the same time, horseshoe snails can eat algae on the substrate, enhance the ability of corals to compete with algae for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/51
CPCA01K61/51Y02A40/81
Inventor 何毛贤欧泽奎刘文广
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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