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Selenium-rich probiotics foder additive production method and its product

A technology of selenium-enriched probiotics and feed additives, applied in animal feed, animal feed, additional food elements, etc., can solve problems such as increasing the sensitivity of susceptible organisms, causing teratogenicity and disability in humans and animals, and reducing animal immune function, etc. To achieve the effect of increasing the level of swine fever antibody, regulating body metabolism, enhancing immune function and disease resistance

Active Publication Date: 2006-11-08
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the long-term use and abuse of these additives, their disadvantages have been widely recognized, such as promoting the increase of drug-resistant strains; increasing the sensitivity of susceptible organisms, promoting exogenous and endogenous infections of the body; reducing animal immune function , weaken the body's resistance; remain in livestock and poultry products, threatening human health; cause deformity and disability to humans and animals, and even lead to poisoning and death of humans and animals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: A pig farm in Yanchi County, Ningxia

[0029] A feed additive containing selenium-enriched probiotics, the production method of which is as follows:

[0030] (1) Strains:

[0031] Lactobacillus acidophilus (L.acidophilus, LA): purchased from the Microbial Strain Preservation Center, Institute of Microbiology, Chinese Academy of Sciences, the strain code is AS1.1878.

[0032] Candida utilis (Candida utilis): purchased from the Microbial Strain Preservation Center of the Institute of Microbiology, Chinese Academy of Sciences, with the strain code AS2.1180.

[0033] (2) Culture medium: 1kg of yeast extract, 1kg of glucose, dissolved in 100L of water, with natural pH; sterilized by high-pressure steam at 115°C for 15min, and set aside.

[0034] (3) Inorganic selenium source: Prepare 500 ml of sodium selenite solution with a Se concentration of 1 mg / ml, sterilize at 121° C. for 30 minutes by high-pressure steam, and set aside.

[0035] (4) Activation of strains a...

Embodiment 2

[0065] Embodiment 2: A sheep farm in Yanchi County, Ningxia

[0066] The feed additive containing selenium-enriched probiotics has the same production method as above.

[0067] The cfu numbers of Candida utilis and Lactobacillus acidophilus in the above obtained feed additive containing selenium-enriched probiotics were 10 9 / g and 10 11 / g; the selenium content is 48.648mg / kg, wherein the organic selenium content is 92.2%, and the selenomethionine content is 78.07%. When used as a feed additive, 2kg of selenium-enriched probiotics is added to each ton of feed.

[0068] The selection, processing and feeding management of test animals when the above-mentioned feed added with selenium-rich probiotic additives for experiments includes:

[0069] 1. Select 40 healthy Tan sheep lambs with a similar age and a body weight of about 20 kg as the experimental subjects.

[0070] 2. The experimental basal diet was formulated according to the local feed resource status and referring to ...

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Abstract

The present invention relates to a production method of feed additive containing selenium-enriched probiotics and its product. Said production method includes the following steps: using torula yeast and acidophilous lactobacillus as strain, mixing them according to the ratio of 1:4 and inoculating them into culture containing sodium selenite, adding organic selenium transformation accelerator and making culture for 36 hr so as to obtain the invented product. In said product the CFU numbers of torula yeast and acidophilous lactobacillus respectively are 10 to the power 9 / g and 10 to the power 11 / g, selenium content is 50 mg / kg, in which organic selenium content is above 90%, and selenomethionine content is above 75%. It can obviously raise animal immunological function and resistance to disease.

Description

1. Technical field [0001] The invention relates to a production method of a feed additive containing selenium-enriched probiotics and a product thereof, which belongs to the field of feed additive production and is specially used for the production of selenium-enriched probiotics for feed. The product can be used as a feed additive and can exert organic selenium and The dual role of probiotics. 2. Technical Background [0002] Selenium is one of the essential trace elements for animals and humans. It is closely related to the growth and development, reproduction and disease occurrence of animals. Studies have shown that selenium has anti-oxidation, improves the body's immunity and disease resistance, regulates the body's metabolism, affects the reproductive function of animals and humans, resists tumors, prevents and treats endemic diseases (such as Keshan disease, Kaschin-Beck disease), delays aging, and antagonizes toxic substances. elements and many other functions. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/165A23K10/18A23K20/142A23K20/20A23K50/10A23K50/30
Inventor 黄克和秦顺义高建忠潘翠玲
Owner NANJING AGRICULTURAL UNIVERSITY
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