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A method for improving yield and quality of razor clam cultured

A technique for constricting clams and yield is applied in the field of improving the production and quality of constricted clams breeding, which can solve the problems of obvious differences in economic benefits and less than 10 yuan/kg, and achieve the effects of improving taste and nutritional quality and improving economic benefits.

Active Publication Date: 2017-05-31
福建省中灵农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the taste and quality of the razor clams produced by farmers in different regions are very different. They are also cultured in ponds. The purchase price of "Changjie razor clams" with good quality and taste has exceeded 30 yuan / kg, while some low-quality razor clams are as high as 30 yuan per kilogram. Less than 10 yuan / kg, the difference in economic benefits is obvious

Method used

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  • A method for improving yield and quality of razor clam cultured
  • A method for improving yield and quality of razor clam cultured
  • A method for improving yield and quality of razor clam cultured

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Select razor clam juveniles with a size of 1.63±0.11×0.75±0.04 (length×width, mm×mm) and place them in a 50L plastic white barrel for cultivation. The bottom of the barrel is covered with a 5mm-thick sieve that has been boiled and filtered with a 200-mesh nylon sieve. sea ​​mud. After continuous cultivation for 10 days at a salinity of 13, the salinity of each barrel was adjusted to 8, 13, 18 and 23 by mixing fresh water and seawater with a salinity of 30, and the cultivation was continued for 5 days. Mix and feed sufficient amounts of Chaetoceros muelleri, Isochrysis galbana, Platymonas helgolandica and Thalassiosira weissflogii twice a day in equal proportions Before feeding, the salinity of the microalgae liquid should be adjusted to the experimental requirements, and the water should be changed every 5 days and the bottom mud should be replaced (the thickness of the bottom mud should gradually increase by about 5mm each time). Continuously inflated, cultured at nat...

Embodiment 2

[0023] In order to verify that large-scale cultivation also has the effect of embodiment 1 small-scale cultivation, carry out following cultivation experiment:

[0024] Xiaozhi Aquaculture Farm in Changjie, Ninghai County, Ningbo City, Zhejiang Province has 550 mu of seawater ponds, with an average depth of more than 1m. On May 13, 2014, razor clam seedlings with an average length of 1.3cm were put in. Among them, 110 mu of razor clam culture ponds are according to the present invention. The method is provided. From May 13, 2014 to February 15, 2015, the salinity of the pond water is maintained at around 10-13 throughout the year by pumping fresh water, and the extreme minimum salinity reaches around 6 in August due to typhoons. After February 15, 2015, about 1 / 4 of the pond water was discharged every day and replaced with natural seawater with a salinity of about 25, so that the salinity slowly increased to higher than 18‰. After a week, it was managed normally, and the salini...

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Abstract

The invention belongs to the technical field of aquaculture, and relates to a method for improving aquaculture output and quality of sinonovacula constricta. The method for improving the aquaculture output and the aquaculture quality of the sinonovacula constricta is specially directed at the sinonovacula constricta aquaculture in a seawater enclosed pond. The method for improving the aquaculture output and the aquaculture quality of the sinonovacula constricta includes: using a water pump to pump fresh water into the aquaculture enclosed pond or replacing water in the aquaculture enclosed pond with seawater lower than 12 in salinity in April or May every year, controlling the salinity of the seawater below 13, and then throwing sinonovacula constricta larvae into the aquaculture enclosed pond. During the whole growth period of the sinonovacula constricta larvae, the salinity of the seawater in the aquaculture enclosed pond is kept below 13, and the salinity of the seawater is gradually increased to a value higher than 18 before catching is started, and then the sinonovacula constricta are fetched out of the aquaculture enclosed pond after the sinonovacula constricta larvae are bred at the salinity higher than 18 for a time longer than one month. Accordingly, the method for improving the aquaculture output and the aquaculture quality of the sinonovacula constricta achieves both high output and high taste quality in the sinonovacula constricta aquaculture, and greatly increases economic benefit of the sinonovacula constricta aquaculture.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for improving the yield and quality of razor clam cultivation. Background technique [0002] Constricted razor clam (Sinonovacula constricta), commonly known as razor clam, belongs to molluscs, belongs to the family of clambranchs, euplophyllobranches, and clam clam family. one of the classes. Constricted clam is rich in various essential amino acids, unsaturated fatty acids and other nutrients needed by human life activities. It is also reported that constricted clam can treat depression, cold dysentery, hot dysentery, women's postpartum wasting, etc., so it has important economic and nutritional value . [0003] At present, the taste and quality of the razor clams produced by farmers in different regions are very different. They are also cultured in ponds. The purchase price of "Changjie razor clams" with good quality and taste has exceeded 30 yuan / kg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 吴旻徐继林冉照收饶志鹏张鑫王伟权严小军
Owner 福建省中灵农业发展有限公司
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