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Artificial breeding method for large-scale offspring seeds of mesona blume

A technology for artificial breeding and fairy clams, which is applied in the application, fish farming, animal husbandry and other directions, and can solve problems such as artificial breeding methods of Chinese fairy clams that have not been seen in China.

Active Publication Date: 2022-07-05
世倍(厦门)海洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the physical comprehensive stimulation method of drying in the shade, irradiating with iodine tungsten lamp to increase the body temperature of parent shellfish, and stimulating with running water has been adopted in China to induce the production of Chinese fairy clams and cultivate small-sized juvenile clams. Bei, there is no report on the artificial breeding method of large-scale seedlings of Chinese fairy clams

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Early-stage juvenile acquisition: ①On May 18, 2020, 150 catties of Chinese fairy clams were purchased, and the weight of 69 g and the shell height of 51 mm were used as the selection indicators of the parent scallops. 30 acres of outdoor earth ponds for intensive cultivation. Regular sampling to observe the plumpness of the parent shellfish, and microscopic examination of the sperm and egg development. ②Clean the Chinese fairy clams with full gonads after being accelerated in the earthen pond, and place them in a cool place to dry for 8 hours. When the surface temperature of the shells rises by 9°C, move the mussels into 30m 2 The sperm and eggs are discharged in the nursery pond (water depth 1m). At this time, the water temperature of the nursery pond is 9°C lower than the shell surface temperature. At the same time, the excrement of the parent shellfish in the water body of the nursery pond was removed, and the hatching density was controlled to be 8 / mL. Under th...

Embodiment 2

[0055] (1) Early-stage juvenile acquisition: ①On June 5, 2020, 200 catties of Chinese fairy clams were purchased, and the weight of 34g and the shell height of 40mm were used as the selection indicators of the parent shells. 20 acres of outdoor earth ponds for intensive cultivation. Regular sampling to observe the plumpness of the parent shellfish, and microscopic examination of the development of sperm and eggs. After 1 month of intensive cultivation, the parent shellfish can be artificially raised when the gonads are full. ②Clean the Chinese fairy clams with full gonads after being accelerated in the earthen pond, and place them in a cool place to dry for 10 hours. When the surface temperature of the shells rises by 5°C, move the mussels into 30m 2 The sperm and eggs are discharged in the nursery pond (water depth 1m). At this time, the water temperature of the nursery pond is 5°C lower than the shell surface temperature. At the same time, the excrement of the parent shellf...

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PUM

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Abstract

The invention provides an artificial breeding method for large-size young clams, which belongs to the technical field of shellfish breeding and comprises the steps of juvenile clam breeding and middle-sized clam breeding. By adopting the method provided by the invention, large-scale breeding of the clams can be realized, the induced spawning discharge rate of the parent clams of the clams is 60%, the fertilization rate is 85%, the hatching rate is 90%, and the larva metamorphosis rate is 50% or above; the survival rate reaches 30% or above, and when shells of the clams grow to 2-3 cm, the clams can be moved to a natural sea area to be cultured.

Description

technical field [0001] The invention belongs to the technical field of shellfish breeding, and in particular relates to an artificial breeding method for large-sized seedlings of clams. Background technique [0002] The fairy clams belong to the phylum Molluscs, the class of vallebranchs, the order Curtain, and the family Curculidae. China is mainly distributed in the waters of Zhejiang, Fujian, Guangdong, Guangxi and Taiwan, and foreign countries are mainly distributed in Japan and the Western Pacific Ocean. The Chinese fairy clams have the most soft bottoms containing shells, and mainly inhabit the sandy bottoms from the lower part of the intertidal zone to the shallow sea, where they live in burial. As one of the seawater economic shellfish with great development prospects, the Chinese fairy clams have been predatory harvested in natural sea areas in recent years, and the wild resources are increasingly depleted. The current market price is as high as 80-120 yuan / kg. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 江泽贵朱李贤
Owner 世倍(厦门)海洋科技有限公司
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