Cement knot type Crassostrea hongkongensis fixation base manufacture and application method

A technology of Hong Kong oysters and application methods, applied in the field of shellfish farming, can solve the problems of easy corrosion of oyster shell fixing base, poor corrosion resistance, high labor costs, etc., to save labor resources, low cost, and save labor costs Effect

Active Publication Date: 2014-08-13
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

Among them, cement cakes (blocks, strips) are too heavy, require a lot of labor costs, and the seedling harvesting effect is relatively poor; oyster shell seedling harvesting effect is relatively ideal, but the corrosion resistance is poor, especially the physical and chemical factors such as salinity and pH The change is more drastic, and the fixing base of the oyster shell is more likely to be corroded, causing the seedlings to fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a. Knotting: In the first ten days of March 2011, purchase polyethylene ropes with a diameter of 5mm, cut the polyethylene ropes into sections, each 4m long, and a total of 20,000 pieces; after that, fold each rope in half and tie a knot every 10cm , 12 knots each.

[0019] b. Rolling cement: use the knotted rope in step a as material, and then roll it to mix cement. The mixed cement is composed of 1.0% resin, 25% shell powder and 74% cement based on the total mass fraction of 100%, and then mixed evenly. In the process of rolling cement, control the viscosity of the mixed cement and roll it slowly so that it only hangs on the knot part, and the other parts are hardly stained with any cement. The length of the cement knot after rolling is 4-8cm, and the diameter is 1.5- 3.0cm.

[0020] c. Production of fixation base: After step b, the mixed cement is placed in the knot for 24 hours and then air-dried naturally. At this time, the mixed cement is firmly attached to the ...

Embodiment 2

[0024] a. Knotting: In the first ten days of April 2012, I purchased a polyethylene rope with a diameter of 5mm, cut the polyethylene rope into sections, and cut it into 4m lengths, a total of 30,000 pieces; after that, each rope was folded in half, and a knot was tied every 10cm. 12 knots each.

[0025] b. Rolling cement: use the knotted rope in step a as material, and then roll it to mix cement. The mixed cement is composed of 1.0% resin, 25% shell powder and 74% cement based on the total mass fraction of 100%, and then mixed evenly. In the process of rolling cement, control the viscosity of the mixed cement and roll it slowly so that it only hangs on the knot part, and the other parts are hardly stained with any cement. The length of the cement knot after rolling is 4-8cm, and the diameter is 1.5- 3.0cm.

[0026] c. Preparation of fixing base: After step b, the mixed cement is placed for 24 hours and then air-dried naturally. At this time, the mixed cement is firmly attac...

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Abstract

The invention discloses a cement knot type Crassostrea hongkongensis fixation base manufacture and application method. The invention develops a light corrosion-resistant cement knot type Crassostrea hongkongensis fixation base capable of saving labor force resource by the technical means, such as knot tying, cement rolling, fixation base manufacture, fixation base processing and fixation base application. According to the invention, the metamorphosis rate of the young Crassostrea hongkongensis is improved, the juvenile mollusk growth speed is quickened, the culture period is shortened, and the labor force cost is greatly reduced. The cement knot type Crassostrea hongkongensis fixation base is different from the traditional Crassostrea hongkongensis fixation base, such as heavy cement pats (blocks and bars), and shells which are easy to be subjected to acid corrosion by saline water and fresh water, and the cement knot type Crassostrea hongkongensis fixation base has the advantages of low cost, convenience in operation, time and labor saving, easiness in popularizing and the like..

Description

Technical field: [0001] The invention belongs to the technical field of shellfish cultivation in modern marine agriculture, and in particular relates to a method for making a cement-bonded Hong Kong oyster fixing base and an application method thereof. Background technique: [0002] my country is a big oyster farming country, with an output of about 3.5-3.8 million tons from 2009 to 2013; while the output of Crassostrea hongkongensis in Hong Kong is about 1.3 million tons, which accounts for 30% of oyster production and 12% of cultured shellfish production. It accounts for 7% of the total production of aquaculture and more than 21% of the world production (China Fishery Yearbook, 2014). Among them, Guangdong Province is the main oyster producing area in Hong Kong, with an annual output of about 900,000 tons, and Guangxi's annual output of more than 400,000 tons. It is mainly distributed in Yangjiang, Taishan, Zhuhai, Zhanjiang, Huizhou, Shantou, Shanwei, Qinzhou, Beihai and ...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张跃环肖述向志明李军张扬李琼珍喻子牛
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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