Non-damage preparation method for single crassostrea hongkongensis

A non-destructive technology of Hong Kong oyster, applied in the field of non-damaged preparation of Hong Kong oyster monomer, can solve the problems of cumbersome production process and high cost of oyster monomer seed, and achieve the effects of strong practicability, low cost and easy operation.

Active Publication Date: 2015-08-26
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

[0004] The purpose of the present invention is to provide a non-damage preparation method of Hong Kong oyster monomer with easy operation and low cost in view of the current defects such as cumbersome production process and high cost of oyster seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] a. Source of oysters: In June 2012, the artificial breeding of Hong Kong oysters was carried out at the Zhanjiang Economic Animal Experimental Station of the South China Sea Institute of Oceanology, Chinese Academy of Sciences. The left shell of Portuguese oysters was used as the attachment base for seedlings, and a total of more than 10 million seedlings were collected. There are about 20-30 seedlings on each attachment base, and then they will be cultivated in the Zhuhai Hengqin breeding area. In October, the shell height of the seedlings will grow to 40-60mm, and the attachment base and clustered seedlings will be obtained;

[0016] b. Debasement environment: select the acidic water environment in the lower reaches of the Pearl River with a salinity of 3-9ppt and a pH of 6.00-6.75;

[0017] C, natural debasing: the attachment base of step a is put into 5000 breeding cages together with the clustering seedlings (10 layers of every cage, and 30-50 seedlings are placed o...

Embodiment 2

[0020] a. Source of oysters: In June 2013, artificial breeding of Hong Kong oysters was carried out at the Zhanjiang Economic Animal Experimental Station of the South China Sea Institute of Oceanology, Chinese Academy of Sciences. The left shell of the Portuguese oyster oyster was used as the attachment base for seedling collection, and a total of more than 10 million seedlings were collected. , there are about 20-30 seedlings on each attachment base, and then medium culture is carried out in Zhanjiang Guandu ecological shrimp pond. In October, the shell height of the seedlings grows to 30-60mm, and the attachment base together with clustered seedlings are obtained;

[0021] b. Debasement environment: choose the acidic water environment in the lower reaches of Jianjiang River with a salinity of 3-9ppt and a pH of 6.00-6.75;

[0022] C, natural debasing: the attachment base of step a is put into 1000 breeding cages together with the clustering seedlings (10 layers of every cage,...

Embodiment 3

[0025] a. Source of oysters: In June 2013, at the Zhanjiang Economic Animal Experimental Station of the South China Sea Institute of Oceanology, Chinese Academy of Sciences, artificial breeding of Hong Kong oysters and long oysters was carried out. A total of more than 10 million seedlings were collected, and there were about 20-30 seedlings on each attachment base. Afterwards, medium culture was carried out in Zhanjiang Guandu ecological shrimp pond. In October, the shell height of the seedlings grew to 30-60mm, and the attachment base was obtained. together with cluster seed;

[0026] b. Debasement environment: choose the acidic water environment in the lower reaches of Jianjiang River with a salinity of 3-9ppt and a pH of 6.00-6.75;

[0027] C, natural debasing: the attachment base of step a is put into 2000 breeding cages together with the clustering seedlings (10 layers of every cage, and 30-50 seedlings are placed on each floor), transferred to the debasing environment, ...

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Abstract

The invention discloses a non-damage preparation method for single crassostrea hongkongensis. The preparation method comprises the following steps: carrying out seedling collection by adopting a crassostrea angulata left shell as an adhering substrate, enabling seedlings of the crassostrea hongkongensis to be adhered onto the adhering substrate, and then carrying out seedling cultivation till the seedlings grow to be 30-60mm, so as to obtain adhering substrate combined clustered seedlings; placing the adhering substrate combined clustered seedlings into a culture cage, transferring the culture cage with the seedlings into a water body substrate-removing environment of which the salinity is 3-9 ppt, and the pH value is 6.00-6.75, and obtaining the single crassostrea hongkongensis after the crassostrea angulata left shell is molten. According to the invention, as the crassostrea hongkongensis has the characteristic of being capable of adapting to extreme environments with low salinity, low pH value and the like, the crassostrea angulata left shell is adopted as the adhering substrate, when the seedlings of the crassostrea hongkongensis grow to be 30-60 mm, the seedlings and the adhering substrate are placed in the culture cage, the culture cage is transferred into the environment with low salinity and low pH value, the cultivation is carried out for 15-30d, the adhering substrate is spontaneously and gradually molten through the ocean acidification reaction between slight acid brackish water and the crassostrea angulata left shell, the single crassostrea hongkongensis is prepared and scattered in the culture cage, and then, the single crassostrea hongkongensis is transferred to a proper culture area for continuing the cultivation.

Description

Technical field: [0001] The invention belongs to the technical field of shellfish cultivation in marine agriculture, and in particular relates to a non-damaging preparation method of Hong Kong oyster monomer. Background technique: [0002] In my country, oyster culture can be divided into two modes: group culture and individual culture. Among them, in group culture, many oysters are often fixed together. Due to the limitation of growth space, the shell shape is extremely irregular, which greatly affects the appearance; it also causes oysters to compete for food and affects their growth rate. Individual oysters are not limited by the growth space because of their freeness, so the shell shape is regular and beautiful, the size is uniform, easy to stock and harvest, and the economic value is higher (Yu Ruihai, Wang Zhaoping, a suitable for the growth of individual oysters Net cage, Chinese invention patent, patent number: 201220190286.0). [0003] In foreign countries, the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCA01K61/54Y02A40/81
Inventor 喻子牛张跃环肖述李军张扬向志明
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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