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Selenium-rich chlorella based functional fish feed and preparation method thereof

A technology for fish feed and chlorella, which is applied in the field of functional fish feed based on selenium-enriched chlorella and its preparation, can solve the problems of low utilization rate, easy to produce toxicity due to improper use, and achieves increased growth rate and survival rate, It is very easy to popularize breeding and enhance the effect of selenium content and astaxanthin content

Inactive Publication Date: 2019-03-22
SHANGHAI OCEAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Selenium is generally divided into two categories: organic selenium and inorganic selenium. Inorganic selenium mainly exists in the form of selenite and selenate, but the utilization rate is low, and improper use is easy to cause toxicity, so it cannot be directly used by humans; Selenium exists in animals and plants, has higher safety and bioavailability, and is more suitable for the selenium supplement requirements of human and animal bodies

Method used

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  • Selenium-rich chlorella based functional fish feed and preparation method thereof
  • Selenium-rich chlorella based functional fish feed and preparation method thereof
  • Selenium-rich chlorella based functional fish feed and preparation method thereof

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preparation example Construction

[0032] This functional fish feed based on selenium-enriched chlorella and its preparation method is characterized in that: the fish feed includes: rapeseed meal, rice bran, flour, fish meal, soybean meal, composite minerals, calcium dihydrogen phosphate , choline chloride, multivitamin and selenium-enriched chlorella powder; the mass percent of the formula of its fish feed is:

[0033] Rapeseed meal: 20-30%;

[0034] Rice bran: 20-30%;

[0035] Flour: 15-20%;

[0036] Fishmeal: 8-20%;

[0037] Soybean meal: 10-15%;

[0038] Complex minerals: 0.1-0.3%;

[0039] Calcium dihydrogen phosphate: 1-2%;

[0040] Choline chloride: 0.2-1%;

[0041] Multivitamins: 0.1-0.15%;

[0042] Selenium-enriched chlorella powder: 2-3%.

[0043] The multivitamins include vitamin A, vitamin C, vitamin D, vitamin E, vitamin B1, vitamin B2, vitamin B3, vitamin B6, vitamin B7, vitamin B11 and vitamin B12.

[0044] The specific production method is as follows:

[0045] 1) Preparation of seleniu...

Embodiment 1

[0049] Embodiment 1: (taking feeding tilapia as example)

[0050] A functional fish feed based on selenium-enriched chlorella, in terms of mass percentage, the following crushed feed raw materials: 29.5% rapeseed meal, 28% rice bran, 15% flour, 10% fish meal, 14% soybean meal , compound minerals 0.1%, calcium dihydrogen phosphate 1%, choline chloride 0.3%, multivitamin 0.1%, selenium-enriched chlorella powder 2%. Mix the above ingredients, add an appropriate amount of water and stir evenly, and then use a granulator to granulate.

[0051] Take the tilapia fry of about 4-5cm as an example, feed the feed of the present invention and common feed for two months, check the data such as fish meat selenium content and fish body growth indicators in the fish body, and count other indicators as shown in Table 1:

[0052] Table 1 Culture effect of functional fish feed based on selenium-enriched chlorella

[0053]

[0054] This breeding example shows that feeding the feed of the prese...

Embodiment 2

[0055] Embodiment 2: (taking feeding tilapia as example)

[0056] Further: according to the mass percentage, take the following crushed feed raw materials: 21% rapeseed meal, 21% rice bran, 19% flour, 19% fish meal, 14% soybean meal, 0.2% composite minerals, 2 calcium dihydrogen phosphate %, choline chloride 0.65%, multivitamin 0.15%, selenium-enriched chlorella powder 3%. Mix the above ingredients, add an appropriate amount of water and stir evenly, and then use a granulator to granulate.

[0057] Take the tilapia fry of about 4-5cm as an example, feed the feed of the present invention and common feed for two months, check the data such as fish meat selenium content and fish body growth indicators in the fish, and count other indicators as shown in table 2:

[0058] Table 2 The breeding effect of functional fish feed based on selenium-enriched chlorella

[0059]

[0060] This breeding example shows that feeding feed of the present invention can effectively improve the se...

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Abstract

The invention discloses a selenium-rich chlorella based functional fish feed and a preparation method of the selenium-rich chlorella based functional fish feed, the selenium-rich chlorella based functional fish feed comprises a rapeseed dreg, a rice bran, a flour, a fish meal, a soybean meal, a compound mineral substance, multi-vitamins, monocalcium phosphate, choline chloride, and a selenium-richchlorella powder in the formula, and the selenium-rich chlorella powder is prepared by adding 2 mg / L sodium selenite into a BG-11 culture medium under the optimized condition, culturing, finally homogenizing and breaking a wall after enzymolysis. The high selenium accumulating capability and the organic selenium transforming capability of the chlorella are used, the selenium content of the feed and the proportion of the organic selenium are effectively increased, the safety and the bioavailability of the selenium are strengthened, the economic benefit is further increased while the physique of fish and the meat quality are improved, the increase of the selenium content of the culture medium also promotes the synthesis of astaxanthin of the chlorella, and the immunity of a fish body is improved. The organic selenium-rich fish provides the technical support for the industrial development of selenium-rich fish foods on strengthening the immunity of the human body and resisting aging andcancers.

Description

technical field [0001] The invention relates to the field of aquatic feed, in particular to a functional fish feed based on selenium-enriched chlorella and a preparation method thereof. Background technique [0002] Selenium is an essential trace element in the human body and animals. It has strong antioxidant capacity. It can form antioxidant enzymes in organisms, protect cell membranes from oxidative damage, and maintain their permeability; in addition, selenium-P protein can Chelate poisons such as heavy metals to reduce the toxic effect of poisons. Therefore, selenium is called the "king of cancer prevention" among trace elements in the human body by scientists. Selenium can also be used in aquaculture to remove free radicals in animals and make them more energetic. But according to statistics, there are more than 40 countries and regions lacking selenium in the whole world, and China is the region with the most serious selenium deficiency in the world, and the provinc...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/30A23K10/22A23K10/37A23K10/16A23K10/14A23K20/105A23K20/174A23K20/26A23K20/20C12N1/12C12R1/89
CPCA23K10/14A23K10/16A23K10/22A23K10/30A23K10/37A23K20/105A23K20/174A23K20/20A23K20/26A23K20/30A23K50/80C12N1/12Y02P60/87Y02A40/818
Inventor 孙诤徐磊周志刚
Owner SHANGHAI OCEAN UNIV
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