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Desalination method for spats of sinonovacula constricta (Lamarck)

A technology of hanging razor clams and seedlings, which is applied in the field of aquaculture to achieve high growth rate, good application prospects and stable survival rate

Inactive Publication Date: 2018-11-16
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no report about the method for desalinating razor clam seedlings of the present invention.

Method used

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  • Desalination method for spats of sinonovacula constricta (Lamarck)

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1 Desalination method of constricted razor

[0019] One-month-old constricted clams (shell length 0.6184±0.069cm, body weight 0.0164±0.0027g) living at 8ppt with good health and vitality were used to compare and dilute the survival effect of three programs. Scheme 1: Desalination scheme with 8-day salinity gradient changes: D16ppt, D2 5ppt, D3 4ppt, D4 3ppt, D5 2ppt, D6 1.5ppt, D7 1ppt, D8 0.5ppt. Scheme 2: Desalination scheme with 3-day salinity gradient change: D1 4ppt, D2 2ppt, D3 0.5ppt. Protocol 3: Desalination protocol for 1 day salinity gradient change: D1 0.5ppt. The specific operation is as follows: the test container is a plastic basin of 35*45*15cm, each basin is placed with 30 juveniles, and three parallels are set for each scheme, and the salinity of the control group is 8ppt. Each group stayed for 48 hours after reaching the target salinity to observe the effect. Control method of salinity gradient in culture: mud mud (taken from 10cm above t...

Embodiment 2

[0021] Example 2 Indoor freshwater constricted clam culture

[0022] Get the constricted clams juveniles after 8 days of salinity gradient desalination culture in Example 1, carry out indoor freshwater culture constricted clams, the specific operations are as follows: the test container selects 65*45*45cm plastic buckets, and each bucket is placed 100 juveniles, each group Three parallels were set up for 3 months of culture. The mud used for the test is taken from the mud of the mudflat (taken from the part above 10cm of the mudflat surface in the sea area). First, the mudflat mud is screened with a 5-mesh aperture screen to remove impurities, and then the mudflat mud is suspended in fresh water. The suspended mud is left to stand for one day. It precipitates naturally, removes the water after washing, and operates 4-5 times according to the above-mentioned mud washing method until the salinity of the washed water is 0.5ppt. The prepared tidal mud was spread in the test conta...

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Abstract

The invention relates to a desalination method for spats of sinonovacula constricta (Lamarck). The method comprises the following steps that one-month-old spats are selected, salinity gradient changeof 8 days is adopted, and the target salinity is reached and kept for 3 months or above, wherein the salinity is 6 ppt in the first day, 5 ppt in the second day, 4 ppt in the third day, 3 ppt in the fourth day, 2 ppt in the fifth day, 1.5 ppt in the sixth day, 1 ppt in the seventh day and 0.5 ppt in the eighth day. By studying different salinity gradient changes, the optimal desalination method for the spats of sinonovacula constricta (Lamarck) is concluded, the desalination method is used for breeding sinonovacula constricta (Lamarck) in the 0.5-ppt environment for 3 months, the survival rateis 14.14-17.20%, and it is continuously monitored for 3 months that the survival rate and the growth of the spats of sinonovacula constricta (Lamarck) are stable. The desalination method for the spats of sinonovacula constricta (Lamarck) is put forward for the first time, lays a technical foundation for freshwater breeding of sinonovacula constricta (Lamarck), is convenient to operate and high inapplicability and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for desalination of constricted razor seeds. Background technique [0002] The constricted razor is the general name of the mollusks living in the ocean, the Latin name: Sinonovaculaconstricta (Lamarck), also known as the emperor of the razor, the son of the razor, the bamboo locust, the dragon, and the razor, which are common in life. Seafood products are widely distributed in the north and south coastal areas of my country. Clam meat can be eaten fresh, or processed into dried clam, clam oil, etc. China has a long history of breeding, and Fujian and Zhejiang have the largest production. Clam meat is delicious and nutritious. It has been determined that every 100 grams of fresh meat contains 7.2 grams of protein, 1.2 grams of fat, 2.4 grams of carbohydrates, 3 grams of sugar, 133 mg of calcium, 114 mg of phosphorus, 227 mg of iron, and 200 thousand calories. coke....

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 李家乐彭茂潇蓝天一刘晓军牛东红叶博李燕白玉麒李智熊娅
Owner SHANGHAI OCEAN UNIV
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