Method for preparing high-value feedstuff for aquatic products by using microalgae and artemia salina

A high-value artemia technology, applied in the fields of application, animal feed, animal feed, etc., can solve the problem of high cost, insufficient nutritional value, high survival/high efficiency of artemia breeding, and inability to be sterile, non-toxic/green and safe Taking into account other issues to achieve the effects of low cost, promoting and improving growth and immunity, and retaining appearance and color

Pending Publication Date: 2021-02-02
SHANGHAI 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 overcome the disadvantages of prior art that the nutritional value of the aquatic feed based on Artemia cannot fully meet the developmental needs of aquatic seedlings, the high survival / high efficiency of Artemia cultivation and the inability to take into account the sterile and non-toxic / green safety and the high cost , to provide a low-cost preparation method of Artemia-based aquatic feed that has high nutritional value, can fully meet the developmental needs of aquatic seedlings, and is safe and harmless

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing high-value aquatic bait using microalgae and Artemia, comprising the following steps:

[0034] (1) Use an Artemia incubator to hatch Artemia, add natural sterile seawater (salinity 2.7%) and Bohai Bay Artemia eggs, inflate and hatch for 24 hours at an ambient temperature of 30°C, with a light intensity of 2000lux and continuous light, and then separate Obtain Artemia newly hatched nauplii;

[0035] (2) Use Dunaliella salina to raise Artemia nauplii, and regularly feed Dunaliella salina once a day, so that the Artemia density in the Artemia culture water environment is 5ind / mL, and the density of Dunaliella salina is 3×10 6 cells / mL, the salinity of the aquaculture water environment is 2.7%, the temperature is 30°C, the light intensity is 2000lux, the light-dark ratio=12h:12h, and microalgae are fed to cultivate Artemia nauplii for 5 days, and the cultivation process of Dunaliella salina is as follows : Cultivate in natural sterile seawater plus F...

Embodiment 2

[0045] A method for preparing high-value aquatic bait using microalgae and Artemia, comprising the following steps:

[0046] (1) Use an Artemia incubator to incubate Artemia, add natural sterile seawater (salinity 2.7%) and Bohai Bay Artemia eggs, inflate and hatch for 36 hours at an ambient temperature of 30°C, with a light intensity of 3000lux and continuous light, and then separate Obtain Artemia newly hatched nauplii;

[0047] (2) Use Isochrysis to raise Artemia nauplii, and regularly feed Isochrysis once a day, so that the density of Artemia in the water environment of Artemia culture is 3ind / mL, and the density of Isochrysis is about 5×10 6 cells / mL, the salinity of the aquaculture water environment is 2.7%, the temperature is 28°C, the light intensity is 3000lux, the light-dark ratio = 12h:12h, feeding Isochrysis to cultivate Artemia nauplii for 5 days, the cultivation process of Isochrysis For, cultured in natural sterile seawater plus F / 2 medium, pH 8.0, light-dark r...

Embodiment 3

[0058] A method for preparing high-value aquatic bait by using microalgae and Artemia, the microalgae selected is seawater chlorella, and the density of seawater chlorella is 1×10 when the microalgae is cultivated 6 cells / mL.

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Abstract

The invention discloses a method for preparing high-value feedstuff for aquatic products by using microalgae and artemia salina. The high-value feedstuff for the aquatic products is prepared through culturing nauplii of artemia with the microalgae, and then, carrying out collecting, sterilizing, freeze-drying and crushing, wherein the microalgae comprise at least one of dunaliella salina, chlorella salina, isochrysis galbana, nannochloropsis oculata and platymonas subcordiformis. According to the method disclosed by the invention, the specific high-value microalgae serve as a unique food supply of the nauplii of artemia, a one-step food cycle culture mode is employed, the microalgae have multiple nutrients and a high value, can be used for promoting and improving the growth, development and immunity of the artemia salina and have the characteristics of high artemia salina survival rate, high nutritive value, environmental-friendliness, safety and simple culture process; and due to aftertreatment, the appearance, color and luster of the artemia salina can be completely reserved to the maximum, the damage to the nutrients is less, nutritive values for the feedstuff for the aquatic products are reserved relatively greatly, and the prepared feedstuff for the aquatic products is rich in nutrition and relatively low in cost, does not pollute culture water and has an application prospect.

Description

technical field [0001] The invention belongs to the technical field of aquatic feed, and relates to a method for preparing high-value aquatic feed using microalgae and artemia. Background technique [0002] Human beings have studied microalgae for hundreds of years, and have a relatively in-depth understanding of the biological characteristics of some microalgae. In today's current situation where the energy industry is gradually shrinking and the land is tense due to population growth, some characteristics of microalgae can perfectly solve this problem. First of all, the cultivation of microalgae does not occupy arable land, only need to use light energy, water, CO 2 And some nutrient salts, it can synthesize a large amount of micronutrients such as protein, lipid, carbohydrate and carotenoids, and there are many types of microalgae, and the nutrients are also diverse, which can basically cover the needs of humans and animals. All nutrients. Compared with ordinary plants...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/20A23K10/16A01K67/033
CPCA23K50/80A23K10/20A23K10/16A01K67/033
Inventor 孙诤王灿徐磊周志刚
Owner SHANGHAI OCEAN UNIV
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