Compound microecological preparation for prawn

A technology of composite microecology and preparation, applied in the direction of application, use of vectors to introduce foreign genetic material, recombinant DNA technology, etc., to achieve the effects of improving survival rate, low price, and promoting growth

Inactive Publication Date: 2005-06-01
OCEAN UNIV OF CHINA
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Problems solved by technology

[0003] The purpose of this invention is to provide a kind of composite probiotics for pra...

Method used

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Embodiment Construction

[0006] Weigh 1.5kg of Bacillus subtilis powder (100 billion CFU / g), 0.75kg of Bacillus licheniformis powder (100 billion CFU / g), and lactic acid bacteria powder coated with double-layer microcapsules (20 billion CFU / g) 2.25 kg, 1.5 kg of Arthrobacter tobacco powder (20 billion CFU / g) coated with double-layer microcapsules, and 94 kg of carrier (brewer's yeast powder) was weighed to make 100 kg with the above four kinds of powders. These four kinds of raw powders and carriers are uniformly mixed in a mixer (required coefficient of variation ≤ 5%), which is the composite microecological preparation for prawns of the present invention. The total live bacteria content of the product of the present invention is 3 billion CFU / g; among them: Bacillus subtilis, 1.5 billion CFU / g; Bacillus licheniformis, 750 million CFU / g; lactic acid bacteria coated with double-layer microcapsules, 450 million CFU / g; Arthrobacter tobacco coated by double-layer microcapsules, 300 million CFU / g.

[00...

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Abstract

The composite micro ecological preparation for prawn consists of live bacteria bead and carrier, and features that the live bacteria bead contains Bacillus subtilis in 1-2 billion CFU/g, Bacillus licheniformis in 0.5-10 billion CFU/g, double microcapsule coated lactic acid bacterian in 0.3-0.5 billion CFU/g, and double microcapsule coated tobacco arthrobacter in 0.2-0.5 billion CFU/g, with the total live bacteria being in the range of 2-4 billion CFU/g. The present invention has the advantages of: small added amount of 0.1-0.2 %, obvious effect of raising immunity and survival rate of prawn, obvious function of raising the digestion and absorption of prawn and lowering the feed coefficient, no bad effect on the taste of feed, stable material source, low cost and simple production process.

Description

technical field [0001] The invention relates to a feed additive, in particular to a compound microecological preparation for prawns. Background technique [0002] Due to problems such as drug residues and bacterial resistance, there is an increasing call to limit the use of antibiotics internationally. The immunity of aquatic animals can be improved by adding probiotics (live bacteria preparations) in the feed, which can reduce the use of antibiotics. Since the 1990s, there have been many reports on the application of single-strain probiotics in aquatic products at home and abroad. However, in practical applications, it has been found that single-strain probiotics often have limited effects and are difficult to meet the actual conditions of shrimp farming. need. Contents of the invention [0003] The purpose of the present invention is to provide a kind of composite probiotics for prawns, which can overcome the above-mentioned shortcomings of the existing single-componen...

Claims

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Application Information

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IPC IPC(8): A23K10/18A23K50/80C12N15/75
Inventor 谭北平麦康森艾庆辉李继秋
Owner OCEAN UNIV OF CHINA
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