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Artificial breeding method for Trochus niloticus

A horseshoe snail, artificial technology, applied in the field of artificial breeding of marine organisms, can solve the problems of embryo development and larvae cultivation, such as the inability to consult detailed information, and achieve the effect of ensuring the success rate of seedling breeding, reducing the number of ponds, and being easy to operate.

Active Publication Date: 2018-06-29
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

Although there are many reports about the giant horseshoe snail abroad, there is still no detailed information about its embryonic development and larval cultivation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] On August 31, 2017, in the open-air cement pool (seedling pond) with a width of 2.3m × length 3.0m × depth 1.2m, the attachment base was put in a plastic film of 1m × 1m, and the stone was wrapped with a rubber band in the middle. Place them evenly on the bottom of the nursery pond with an interval of 25-30cm. Inject filtered seawater, the water depth is 1m, and fertilize according to the formula of benthic diatom nutrient salt (that is, add 30g of sodium nitrate, 30g of urea, 5g of potassium dihydrogen phosphate, 5g of iron citrate, 200mg of vitamin B1, and 200μg of vitamin B2 into each ton of seawater. and sodium silicate 20g), that is, first weigh each reagent and dissolve them in about 1L of seawater. Ferric citrate needs to be heated and dissolved. Mix the dissolving reagents and stir evenly. Cloth with sunscreen, 90% shading rate. On September 6, 2017, the plastic film had turned yellow, indicating that benthic diatoms had attached to it. Drain all seawater in t...

Embodiment 2

[0023] On September 20, 2017, in the open-air cement pond (seedling pond) with a width of 3.0m x a length of 6.0m x a depth of 2.0m, the attachment base was put in a plastic film of 1m x 1m, with rubber bands wrapped in stones in the middle. Place them evenly on the bottom of the nursery pond with an interval of 25-30cm. Inject filtered seawater, the water depth is 1m, and fertilize according to the formula of benthic diatom nutrient salt (that is, add 30g of sodium nitrate, 30g of urea, 5g of potassium dihydrogen phosphate, 5g of iron citrate, 200mg of vitamin B1, and 200μg of vitamin B2 into each ton of seawater. and sodium silicate 20g), the top of the nursery pond is equipped with a sunscreen net, and the shading rate is 90%. On September 29, it was observed that the plastic film had turned yellow, indicating that benthic diatoms had attached to it.

[0024] On September 29, 2017, discharge all the seawater in the nursery pond, and then inject fresh filtered seawater with...

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Abstract

The invention discloses an artificial breeding method for Trochus niloticus. According to the artificial breeding method, a large number of Trochus niloticus larvae are bred by the steps of preparation of an attachment medium growing with benthic diatom, collection and incubation of fertilized ova and breeding management. A spawning incubation pond and a breeding pond are integrated into a whole,so that the injury to ova and larvae in the collection process is reduced, and the incubation is promoted. Meanwhile, by taking an outdoor pond as the breeding pond, the illumination requirements of diatom in the pond can be guaranteed, the continuous growth of bait in the breeding pond is promoted, and the natural feeding of the bait is increased, so that the pond transfer number of times is reduced. The method can be applied to the large-scale artificial breeding of Trochus niloticus, the breeding success rate can be guaranteed, and the operation is simple and convenient.

Description

Technical field: [0001] The invention belongs to the technical field of artificial breeding of marine organisms, and in particular relates to an artificial seedling raising method of large horseshoe snails. Background technique: [0002] Large horseshoe snail Trochus niloticus, also known as horseshoe bell snail, male snail, gastropoda, horseshoe family, horseshoe snail. The shell is large and thick, about 120mm long, conical, with a large helix. Shell surface is off-white, with purple or dark red flame-like longitudinal patterns. The upper part of each helical layer has 3-4 spiral ribs connected by granular protrusions, and above the suture line, the lower part of the helical layer has a row of thick tumor-like protrusions. The bottom of the shell is flat, the mouth is oblique, the outer lip is simple, the inner lip is thick, twisted into an S shape, and horny. Lives on coral reef rocks from low tide line to shallow water. Southern Hainan, Southwestern Taiwan (Hengchun ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/51A01K61/53A01K61/17
CPCA01K61/17A01K61/51A01K61/53Y02A40/81
Inventor 何毛贤胡建兴刘文广欧泽奎
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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