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Method for developing shellfish feed by utilizing waste porphyra yezoensis

A technology of seaweed and shellfish, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of waste, environmental pollution, natural decay, etc., and achieve the effect of increasing the content, protecting the environment, and increasing the pH value.

Inactive Publication Date: 2020-02-11
JIANGSU OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the following disadvantages in the prior art. Laver without commercial value will be discarded in the sea area, rot naturally, and pollute the environment, which causes great waste. Approaches to developing shellfish feed

Method used

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  • Method for developing shellfish feed by utilizing waste porphyra yezoensis
  • Method for developing shellfish feed by utilizing waste porphyra yezoensis
  • Method for developing shellfish feed by utilizing waste porphyra yezoensis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Lay a single layer of Porphyra zebra and dry it naturally or dry it in a constant temperature drying oven at 40°C. Lay flat to keep the Porphyra zebra evenly heated to prevent it from being completely dried, and dry it at a low temperature to avoid streaks The composition of laver changes;

[0028] Then put the dried Porphyra zebra into an ultrafine pulverizer to grind, and the particle size of the dry Porphyra zebra powder after grinding reaches 300 mesh or more, and the filter-feeding property is within 50 microns. Considering that the dry powder will reabsorb and expand after feeding, the volume will increase to ensure that the bait is fed. In the future, the particle size can still be filtered by green clams;

[0029] Finally, add different amounts of distilled water to the dried Porphyra zebra dry powder after the above treatment. The specific gravity of the added amount of distilled water is: 1:0.6, 1:0.9, 1:1.2, 1:1.5, 1:1.8, and then add the same amount of gluco...

Embodiment 2

[0032] Lay a single layer of Porphyra zebra and dry it naturally or dry it in a constant temperature drying oven at 40°C. Lay flat to keep the Porphyra zebra evenly heated to prevent it from being completely dried, and dry it at a low temperature to avoid streaks The composition of laver changes;

[0033] Then put the dried Porphyra zebra into an ultrafine pulverizer to grind, and the particle size of the dry Porphyra zebra powder after grinding reaches 300 mesh or more, and the filter-feeding property is within 50 microns. Considering that the dry powder will reabsorb and expand after feeding, the volume will increase to ensure that the bait is fed. In the future, the particle size can still be filtered by green clams;

[0034] Finally, add the same amount of distilled water to the dry Porphyra zebra dry powder after the above treatment, then add the same amount of glucose and inoculate the same amount of bacterial strain JSOU-1, mix well, seal and ferment, and put it into th...

Embodiment 3

[0037] Lay a single layer of Porphyra zebra and dry it naturally or dry it in a constant temperature drying oven at 40°C. Lay flat to keep the Porphyra zebra evenly heated to prevent it from being completely dried, and dry it at a low temperature to avoid streaks The composition of laver changes;

[0038] Then put the dried Porphyra zebra into an ultrafine pulverizer to grind, and the particle size of the dry Porphyra zebra powder after grinding reaches 300 mesh or more, and the filter-feeding property is within 50 microns. Considering that the dry powder will reabsorb and expand after feeding, the volume will increase to ensure that the bait is fed. In the future, the particle size can still be filtered by green clams;

[0039] Finally, add the same amount of distilled water to the dry Porphyra zebra dry powder after the above treatment, add the same amount of glucose and inoculate the same amount of strain JSOU-1, mix well, seal and ferment, put it in a 35°C thermostat for f...

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Abstract

The present invention discloses a method for developing a shellfish feed by utilizing waste porphyra yezoensis. The method comprises the following steps: S1, drying porphyra yezoensis: flatly spreading a single layer of porphyra yezoensis for natural sun-drying or drying the porphyra yezoensis in a 40-DEG C constant-temperature drying oven; S2, grinding porphyra yezoensis: putting the dried porphyra yezoensis into an ultrafine grinder, conducting grinding to obtain porphyra yezoensis dry powder to reach particle sizes of 300 meshes or above and filter feeding property within 50 microns; and S3, conducting fermenting: adding distilled water, a strain JSOU-1 and glucose into the treated porphyra yezoensis dry powder, and conducting stirring, uniform mixing, sealing and fermenting. The used fermentation method is solid-state fermentation, addition amount of water in the solid-state fermentation is small, a matrix is high in water insolubility and suitable for rapid propagation of probiotics, a large number of probiotics are good in activity of produced enzymes and high in fermentation capacity; and the solid-state fermentation has simple requirements on devices and low in initial investment, and besides, the method is easy to operate; and after the solid-state fermentation is finished, a sealed container can be repeatedly utilized without emission and pollution.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for developing shellfish feed by using discarded laver. Background technique [0002] my country's traditional shellfish farming has a long history, and the cultivation of pearls and oysters first appeared in China with a history of more than 2,000 years (Li Jianping, 2003). After the founding of New China, the mariculture industry developed rapidly, and the earliest shellfish put into production was mussels (Lu Kun et al., 2016). Most of the traditional shellfish farming is tidal flat farming or bottom-sowing farming. Because the education level of shellfish farming practitioners is generally not high, the traditional farming density of most shellfish is too high. Overburden farming puts great pressure on the carrying capacity of the sea area, leading to the deterioration of the sea area environment and the degradation of germplasm, and to a certain extent destroys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/30A23K10/12A23K20/163
CPCA23K10/12A23K10/30A23K20/163A23K50/80
Inventor 董志国孙泽鹏葛红星魏敏冯森磊李雯倩段海宝李润波张斐然
Owner JIANGSU OCEAN UNIV
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