Method for indoors artificial and intensive culture of clamworm

A breeding method and technology for nereid, which are applied to the field of nematode breeding, can solve the problems of low output of worms, high dependence on the marine environment, low actual survival rate of larvae of worms, etc., and achieve the effects of high survival rate and fast growth rate.

Inactive Publication Date: 2009-06-24
DALIAN FISHERIES UNIVERSITY
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AI Technical Summary

Problems solved by technology

However, since estuaries and tidal flats are open natural environments, the growth of lugworms is limited by the natural climate and environment.
[0005] (2) The seedlings of clamworm come from natural reproduction, rely heavily on the marine environment, and the actual survival rate of clamworm larvae is low
[0006] (3) Nereis worm has many harmful organisms, and it is impossible to effectively control the harmful organisms in the natural environment
[0007] (4) The yield per unit area of ​​clam worms cultured in shrimp ponds and tidal flats is low, which is greatly affected by the climate
At the same time, there is currently no report on artificial indoor intensive cultivation of clam worms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] a. Built-in breeding ponds, the specifications are: 6-8 meters long, 2-4 meters wide, 1.0 meters high, the thickness of the substratum layer at the bottom of the pool is 20-50 cm, and the seawater layer is 30-50 cm high;

[0046] b. The fine sand and silty sand used for the substrate are both commercially available construction sand, which are obtained by sieving through a sieve with a pore size of 0.2-1mm. Use sand to sand in a ratio of 1:1. Among them, coarse sand (particle size 2 ~ 0.5mm): 15%; medium sand (particle size 0.5 ~ 0.25mm): 25%; fine sand (particle size 0.25 ~ 0.063mm): 10%, coarse sand (particle size 0.063 ~0.016mm) 35%; fine powder sand (particle size 0.016~0.004mm) 15%. The substrate thickness is 10-30cm. The substrate is disinfected by soaking in 5-10ppm chlorine dioxide solution for 24 hours, and the substrate is cleaned by seawater 24 hours after disinfection.

[0047] c. Put artificially cultivated clamworm seedlings, the specification is 0.2-1g...

Embodiment 2

[0053] Others are the same as in Example 1, if bacterial diseases occur on a large scale in the clamworm breeding process, the treatment method for disease control is to spray penicillin (5~8ppm) in the whole pond for 5~7 days, and the concentration of the substrate is 10~20ppm Bleach solution for disinfection. After 24 hours, use fresh sand to filter seawater and wash it thoroughly.

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PUM

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Abstract

The prevent invention provides full artificial controlling culture environment a method for achieving high density intensive artificial culture of clamworm in indoors. This method is according to clamworm living characteristics to build culture pond, collocate sediment and rear with artificial diet, to make clamworm suit for culturing in indoors and without the limit of climatic environment, aquaculture production can be carried out throughout the year. To compare with existing clamworm culture mode, this method ensures high survival rate and high growth rate of clamworm seedlings. To adopt this method to culture clamworms, the survival rate reaches 70 percent to 90 percent, the weight of finished clamworm is 5 to 10 gram. The annual average yield of grub increases 2 to 3 gram, and supplying living clamworms for export the whole year.

Description

technical field [0001] The invention relates to a method for cultivating clam worms, in particular to an indoor artificial intensive cultivation method. Background technique [0002] The clam worm (Perineries aibuhitensis Grube) belongs to the annelida, polychaetes. It is the dominant polychaetes in coastal tidal flats in my country, and it is also a high-quality polychaetes with high economic value. Among them, the export FOB price of double-toothed clamworm and multi-toothed clamworm reached 18 US dollars / kg. The clam worms in Liaoning area have a high reputation in the export of clam worms because of their large size, low water content, and green color. In recent years, due to overharvesting, the natural resources of clamworms tend to be exhausted. The artificial breeding of clamworms can provide an effective way for the supplement, sustainable use and protection of polychaete clamworm resources in my country, thereby creating good economic benefits and ecological benef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A23K1/18A23K10/22A23K10/26A23K10/30A23K20/142A23K20/174A23K50/90
CPCY02A40/81
Inventor 周一兵杨大佐管兆成叶安发刘海映
Owner DALIAN FISHERIES UNIVERSITY
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