Method for preparing ultramicro living body bait from macrophyte

An ultra-micro, seaweed technology, applied in the application, animal feed, animal feed, etc., to reduce production costs, improve breeding efficiency, and low costs

Inactive Publication Date: 2010-10-27
DALIAN FISHERIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference between the two, macroalgae cannot be directly used as marine phytoplankton despite their widespread distribution in nature, high yield and high nutritional value (rich in protein, unsaturated fatty acids, vitamins and minerals). Alternative bait

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] a. Collect large seaweeds with low economic value, such as: enteromorpha, pore stone, reef film, wakame, carrageen, sea film, etc., wash with pure water and disinfect seawater with a salinity of 20-30ppt Soak in water for 20 minutes, and dry the water with a sieve;

[0013] b. Add conch slurry to the seaweed, that is, the slurry made by crushing the soft part of the short snail and using a homogenizer. The amount added is 10ml of the conch slurry per 100g of seaweed, and the digestion reaction is 60-120min;

[0014] c. After removing the decomposed seaweed and mixing it with clean seawater, pulverize it in a pulverizer for 5 minutes, the ratio of seaweed to clean seawater is 1g: 1ml;

[0015] d. Centrifuge the crushed seaweed liquid in a centrifuge at a speed of 2000 rpm / 10min, and take the supernatant;

[0016] e. Filter the supernatant through a 20 μm filter membrane to obtain a filtrate.

[0017] The obtained filtrate was detected under a 400-fold microscope. The f...

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PUM

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Abstract

The invention discloses a method for preparing an ultramicro living body bait from macrophyte, which can obviously improve the culture efficiency, reduce the production cost and provide a stable ad reliable food source for seeds of marine economic animals. The method comprises the following steps of: cleaning the macrophyte with pure water, soaking in seawater for 20 minutes, and drying by using a screen; adding sea snail pulp into the macrophyte for digestion reaction for 60 to 120 minutes, wherein 10ml of sea snail pulp is added into each 100g of macrophyte; mixing the digested macrophyte and clean seawater in a ratio of 1g:1ml, and crushing in a crusher for 5 minutes; centrifuging macrophyte-crushed liquid in a centrifugal machine at a speed of 2,000 turns / 10minutes, and taking supernate; and filtering the supernate by using a 20 mu m filter membrane to obtain filtrate.

Description

Technical field: [0001] The invention relates to a method for preparing ultra-miniature live bait, in particular to a method for preparing ultra-miniature live bait with large seaweed, which can significantly improve breeding efficiency, reduce production costs, and provide a stable and reliable food source for seedling cultivation of marine economic animals. method. Background technique: [0002] Artificially cultured shellfish (scallops, clams, abalone, etc.) and echinoderms (sea cucumbers, sea urchins, etc.), need to feed plant-based live bait such as planktonic diatoms, planktonic green algae, and planktonic golden algae during the stage of broodstock maturation and larval cultivation; When raising seawater fish, shrimp and crabs, it is also necessary to feed living zooplankton (protozoa, rotifers, cladocerans, copepods and artemia, etc.) that use planktonic algae as bait, so a large amount of food must be consumed every day. planktonic algae, generally every 1m 3 The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/14
Inventor 殷旭旺陈晓霞
Owner DALIAN FISHERIES UNIVERSITY
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