Method for cold preservation of mytilus coruscus D-shape larvas

A technology of thick-shelled mussels and a preservation method, which is applied in fish farming, application, climate change adaptation, etc., can solve problems such as insufficient large-scale artificial propagation technology of thick-shelled mussels, short supply of seedlings, and unstable number of seedlings.

Active Publication Date: 2012-12-19
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the above problems, and overcome the problems that the large-scale artificial propagation technology of thick-shelled mussels is unqualified, the number of seedlings is unstable, and the supply of seedlings is in short supply.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The method for refrigerated storage of D-shaped larvae of thick-shelled mussels is characterized in that it comprises the following steps:

[0028] (1) Screening of D-shaped larvae:

[0029] Newly hatched mussel D-shaped larvae (also called D-shaped larvae) are screened, and the D-shaped larvae of the thick-shelled mussel are D-shaped larvae with regular shape.

[0030] (2) Cold storage of D-shaped larvae:

[0031] Select the newly hatched D-shaped larvae of the thick-shelled mussel, put them into a 2L beaker filled with seawater at 18°C, and the density of the larvae in the beaker is 5 / ml; then, put the beaker into a refrigerator at 4°C for preservation. And throw bait.

[0032] During refrigerated storage, replace seawater at 3-5°C every four days. The low-temperature seawater is filtered through a mixed fiber membrane with a salinity of 30‰; use a 40μm filter when replacing low-temperature seawater.

[0033] Feed Chaetoceros gracilis once every two days, and the f...

Embodiment 2

[0040] The method for refrigerated storage of D-shaped larvae of thick-shelled mussels is characterized in that it comprises the following steps:

[0041] (1) Screening of D-shaped larvae:

[0042] Newly hatched mussel D-shaped larvae (also called D-shaped larvae) are screened, and the D-shaped larvae of the thick-shelled mussel are D-shaped larvae with regular shape.

[0043] (2) Cold storage of D-shaped larvae:

[0044] Select the newly hatched D-shaped larvae of the thick-shelled mussel and put them into a 2L beaker filled with seawater at 17°C. The density of the larvae in the beaker is 5 / ml; And throw bait.

[0045] During refrigerated storage, replace the 5°C seawater every four days. The low-temperature seawater is filtered through the mixed fiber membrane, and the salinity is 30‰; when replacing the low-temperature seawater, use a 40μm filter.

[0046] Feed golden algae once every two days, and the feeding density is 5×10 4 cells / ml.

[0047] Furthermore, the surv...

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PUM

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Abstract

The invention discloses a method for cold preservation of mytilus coruscus D-shape larvas, which is characterized by comprising the following steps of: (1) screening of D-shape larvas: screening D-shape mytilus coruscus larvas newly incubated and selecting D-shape veliger larvas in regular shape; (2) cold preservation of D-shape larvas: selecting mytilus coruscus larvas newly incubated to put into a utensil containing seawater at room temperature, then putting the utensil into a 3-5 DEG C freezer for cold preservation, and replacing low temperature seawater and feeding baits; (3) cultivation of D-shape larvas: putting the utensil containing low temperature seawater and the D-shaped larvas in an incubator at a temperature between 16 DEG C and 22 DEG C, replacing seawater in the utensil with seawater at a room temperature after 24h, and feeding baits. The cold preservation time lasts from one day to two months, a few of the bait is needed in the cold preservation to ensure the nutritionrequired by life, and water should be changed after culturing for 24h in an incubator for reducing the damages to the larvas.

Description

technical field [0001] The present invention relates to a method for preserving marine mollusc larvae, in particular to a method for preserving marine bivalve mollusk larvae. The process of cooling and cultivating D-shaped larvae of thick-shelled mussels at normal temperature and obtaining vigorous larvae belongs to the field of aquatic science. technology field. Background technique [0002] Thick-shelled mussel Mytilus coruscus is distributed in my country's Yellow Sea, Bohai Sea, East China Sea coast and Taiwan, etc. It is large in size, delicious in meat and rich in nutrition. In addition to fresh food, it can be made into semi-finished products and dried products. Its dried meat products are called "mussels", which are well-known seafood treasures both at home and abroad. Dried mussel meat is rich in protein, fat, sugar, inorganic salts, various vitamins and inorganic trace elements such as cadmium, vanadium, zinc, cobalt, iron, manganese, etc., and is easy to be abso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 杨金龙李一峰王冲沈和定
Owner SHANGHAI OCEAN UNIV
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