Compound microorganism feed additive and preparation method thereof
A technology of compound microorganisms and feed additives, which is applied in animal feed, animal feed, application and other directions to achieve the effect of reducing mortality, reducing environmental pollution and eliminating adverse effects
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[0051] ① Preparation of primary strains
[0052] Aspergillus niger test tube plate (PDA solid medium) was streaked or diluted and spread on the plate, and cultured at 30°C for 2-3 days to obtain a single colony. Pick a single colony of spores and inoculate them into a bran test tube, and incubate at a constant temperature of 30°C for 2-3 days until Aspergillus niger grows to the bottom of the test tube and turns black.
[0053] ②Preparation of secondary species
[0054] Use an inoculation shovel to inoculate the test tube bacteria into a triangular flask filled with bran medium. The sample volume of the triangular flask is 20-25g. In order to ensure sufficient oxygen supply, two layers of newspaper are used to seal. Cultivate at a constant temperature of 30°C for 24 hours, turn over the bottle, break up the agglomerates and continue to cultivate, and stop culturing after 48-60 hours.
[0055] ③Extended cultivation of three-level strains in canned bottles
[0056] Add twice ...
Embodiment 1
[0091] A compound microbial feed additive is composed of the following raw materials in mass fractions: 60 parts of Aspergillus niger agent, 20 parts of Bacillus subtilis, 15 parts of Enterococcus faecalis and 5 parts of oligosaccharide.
[0092] The live cell count of each strain in the compound microbial feed additive is: the number of spores of Aspergillus niger 3*10 8 cfu / g, Bacillus subtilis 10*10 9 cfu / g, Enterococcus faecalis 10*10 9 cfu / g, total bacterial count 5*10 9 cfu / g.
Embodiment 2
[0094] A compound microbial feed additive is composed of the following raw materials in mass fractions: 50 parts of Aspergillus niger fungicide, 20 parts of Bacillus subtilis, 20 parts of Enterococcus faecalis and 10 parts of oligosaccharide.
[0095] The live cell count of each strain in the compound microbial feed additive is: Aspergillus niger spore number 4*10 8 cfu / g, Bacillus subtilis 10*10 9 cfu / g, Enterococcus faecalis 5*10 9 cfu / g, total bacterial count 3*10 9 cfu / g.
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