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Buoyant raft culture method for Ruditapes philippinarum 'Zebra Clam 2'

A Philippine clam and culture method technology, applied in the field of shellfish culture, can solve the problems of low return rate, difficulty in harvesting, and high rate of fragmentation in harvesting

Active Publication Date: 2021-05-18
DALIAN OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The breeding method of the present invention solves the problems of low survival rate of Filipino clam culture in the prior art, low return capture rate, high harvesting fragmentation rate, and difficulty in winter harvesting, etc.

Method used

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  • Buoyant raft culture method for Ruditapes philippinarum 'Zebra Clam 2'
  • Buoyant raft culture method for Ruditapes philippinarum 'Zebra Clam 2'
  • Buoyant raft culture method for Ruditapes philippinarum 'Zebra Clam 2'

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Experimental program
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Embodiment 1

[0059] The raft culture method of Philippine clam comprises the following steps:

[0060] (1) Selection of seedlings for raft culture: On October 4, 2018, the "Zebra Clam No. 2" bred in ponds was selected (taking growth traits as the breeding index, after four consecutive generations of group selection, the breeding "Zebra Clam 2" clam 2"). The "Zebra Clam No. 2" was bred by the zebra-patterned clams of an indigenous group in Dalian. The shell surface has a uniform "zebra" pattern, the background color of the shell surface is off-white, and the ratio of the pattern spacing on the shell surface to the shell length is 1 / 30 to 1 / 30. 54. Tolerate low temperature of -5°C in tidal flats in winter. Therefrom selecting specification is 167 grains / jin, and average shell length is 2.37cm as seedling (seeing figure 1 );

[0061] (2) Sea area selection for raft farming: choose the waters of Wangjiadao, Zhuanghe, Dalian for raft farming of Philippine clams. The range of salinity in the ...

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Abstract

The invention belongs to the technical field of shellfish culture, and particularly relates to a buoyant raft culture method for ruditapes philippinarum 'Zebra clam 2'. The buoyant raft culture method comprises the following steps of (1) selecting the ruditapes philippinarum with the specification of 240-400 ruditapes philippinarum / kg and the shell length of 2.2-2.9 cm as fries; and (2) putting the fries into a multi-layer net cage hung on a floating raft in a sea area to be bred, the number of layers of the multi-layer net cage is 18-25, and the density of the loaded fries is 150-200 fries per layer. According to the buoyant raft culture method, the ruditapes philippinarum is bred in a raft mode, and the specifications of the fries, the breeding density and the specifications of the multiple- layer the net cage are controlled, so that the problems that in the prior art, the ruditapes philippinarum breeding survival rate is low, the recapture rate is low, the capture breakage rate is high, and the ruditapes philippinarum is difficult to capture in winter are solved; the harvested Ruditapes philippinarum 'Zebra Clam 2' has the advantages of good quality, no sand, no near-shore heavy metal pollution, high fatness and the like.

Description

technical field [0001] The invention belongs to the technical field of shellfish culture, and in particular relates to a floating raft culture method for Philippine clam "Zebra clam No. 2". Background technique [0002] Clam Ruditapesphilippinarum is the main cultured shellfish in shallow tidal flats in my country, with an annual output of about 3 million tons and a value of about 20 billion yuan, accounting for 1 / 6 of my country's mariculture output and 1 / 4 of shellfish output, and its industrial status is extremely important. [0003] The cultivation methods of Philippine clams mainly include bottom-sowing cultivation in intertidal tidal flats, bottom-sowing cultivation in ponds and bottom-sowing cultivation in subtidal tidal flats. Among them, subtidal tidal flat cultivation is the main cultivation method in the Yellow and Bohai Seas in my country. This method changes the water depth from intertidal to The belt is advanced to the 30-meter sea area of ​​the subtidal zone, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54A01K61/60
CPCA01K61/55A01K61/60Y02A40/81
Inventor 霍忠明闫喜武方蕾田园刘括金燕李翠翠王璠
Owner DALIAN OCEAN UNIV
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