CN110372105A - A kind of complex micro organism fungicide and preparation method thereof for improveing aquaculture system - Google Patents

A kind of complex micro organism fungicide and preparation method thereof for improveing aquaculture system Download PDF

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CN110372105A
CN110372105A CN201910624847.XA CN201910624847A CN110372105A CN 110372105 A CN110372105 A CN 110372105A CN 201910624847 A CN201910624847 A CN 201910624847A CN 110372105 A CN110372105 A CN 110372105A
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micro organism
complex micro
organism fungicide
aquaculture system
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CN110372105B (en
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彭健
方素云
胡晓珂
闵军
张海坤
李岩
刘卫
王彩霞
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Yantai Institute of Coastal Zone Research of CAS
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/10Culture of aquatic animals of fish
    • A01K61/13Prevention or treatment of fish diseases
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
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    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14Fungi; Culture media therefor
    • C12N1/16Yeasts; Culture media therefor
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20Bacteria; Culture media therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/101Sulfur compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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Abstract

The invention belongs to microbial product field, in particular to a kind of complex micro organism fungicide and preparation method thereof for improveing aquaculture system.Microbial inoculum is bacillus subtilis, Rhodopseudomonas palustris, bacillus megaterium, lactobacillus acidophilus, streptococcus fecalis, Bacillus circulans, candida utili, nitrobacteria and denitrifying bacteria hybrid bacterial strain tunning.Include in complex micro organism fungicide in the present invention it is quick the microorganism of dissolved oxygen is provided, and containing the microorganism that can decompose ammonia nitrogen in water body, hydrogen sulfide and nitrite, while also containing the bacterial strain of growth and development needed nutrient matter can be provided for aquatic livestock.Have complementary advantages between each bacterial strain, collaboration plays a role;It quickly can breed to form dominant population after being further applied to water body, macromolecular organic matter, residual bait excrement in fast decoupled aquaculture system etc., the substances such as ammonia nitrogen, phosphorus, nitrite, hydrogen sulfide in water body of degrading, purify water, water body dissolved oxygen content is improved, and pathogenic bacteria can be removed.

Description

A kind of complex micro organism fungicide and preparation method thereof for improveing aquaculture system
Technical field
The invention belongs to microbial product field, in particular to a kind of complex micro organism fungicide for improveing aquaculture system And preparation method thereof.
Background technique
China is world aquaculture big country, in recent years, as China's culture fishery is quickly grown, cultivates scale not Disconnected to expand, water pollution is also increasingly severe.Water body is the environment that the existence growth of the aquatic livestocks such as fishes and shrimps must rely on, water quality Quality be the key that aquaculture especially intensive culture success or failure.The aquaculture majority in China is using high density collection The aquaculture model of reduction, the activity of the mankind and the secretion of cultivation object itself and excreta, bait surplus, medicament residue etc. because Element easily causes breeding water body to pollute, water quality factor dysequilibrium, causes aquiculture animal morbidity even high-volume dead.
Improver of water quality used at present mainly includes physical improver of water quality, chemical type improver of water quality and bion Improver of water quality.Physical improver of water quality mainly passes through suction-operated and quickly adsorbs harmful substance, function and effect It is slowly unobvious and not degradable.Chemical type improver of water quality can react to make its degradation with harmful substance, but easily Secondary pollution is formed, and there is irritation and adverse effect to aquatic livestock especially seedling stage animal.Bion improver of water quality The growth and breeding of pathogenic bacteria, thorough decomposing harmful substances are able to suppress, and microelement can be provided for aquatic livestock, promote aquatic products Animal autoimmunity repairs the ecological environment of water body.
Bion improver of water quality refers specifically to complex micro organism fungicide, is that by two or more and mutually antagonism does not have Beneficial microorganism strain is made, and is widely used to the various fields such as aquaculture, sewage treatment.But existing microorganism formulation makes It being affected with by external conditions such as chemicals residues in environment temperature, water body, throwing is more demanding when applying, and microbial inoculum Actual effect has larger fluctuation.Microbial strains in the microbial inoculum oxygen consumption when raised growth is bred, will lead in water body and dissolves The decline of oxygen, the metabolite in growth course can change water body environment, cause a degree of influence to aquatic livestock.
Summary of the invention
The first object of the present invention is to provide a kind of complex micro organism fungicide for improveing aquaculture system.
The second object of the present invention is to provide the preparation method of the complex micro organism fungicide.
To achieve the above object, it is as follows to provide technical solution by the present invention:
A kind of complex micro organism fungicide for improveing aquaculture system, microbial inoculum are bacillus subtilis, the red false unit cell in marsh Bacterium, bacillus megaterium, lactobacillus acidophilus, streptococcus fecalis, Bacillus circulans, candida utili, nitrobacteria and anti-nitre Change bacterium hybrid bacterial strain tunning.
The microbial inoculum is that ostreae testa pulverata, biological peptide and freeze drying protectant are added in hybrid bacterial strain fermentation liquid, is centrifuged and receives after mixing Collection precipitating, obtains the complex micro organism fungicide;Wherein, the quality of ostreae testa pulverata, biological peptide, freeze drying protectant and the fermentation liquid Than for (1~10): (0.1~5): (10~20): 100.
The biology peptide is corn peptide;Freeze drying protectant is molten for the glycerite and trehalose for being in mass ratio 1-3:1-2 Liquid, wherein glycerite concentration is that 30% aqueous trehalose concentration is 10%.
The fermentation liquid is the illumination at 30-37 DEG C by the inoculum concentration of 3%-5% in fermentation liquid base fluid by hybrid bacterial strain Culture 5-8 days, until total strain density in fermentation liquid reaches (1~10) × 108Stop fermentation when a/L;Wherein, fermentation liquid base fluid According to parts by weight, acetic acid 30-50 parts, 50-70 parts of ethyl alcohol, 150-200 parts of sucrose water, 10-30 parts of magnesium sulfate, potassium dihydrogen phosphate 20-50 parts, 50-100 parts of sodium chloride, 20-50 parts of sodium carbonate, 150-300 parts of glucose and 300-500 parts of distilled water.
The hybrid bacterial strain is according to parts by weight, 8-12 parts of bacillus subtilis, 10-13 parts of Rhodopseudomonas palustris, huge 8-12 parts of Bacterium anthracoides, 4-7 parts of lactobacillus acidophilus, 5-8 parts of streptococcus fecalis, 8-11 parts of Bacillus circulans, Candida utilis ferment 7-10 parts female, 4-9 parts of nitrobacteria and 5-8 parts of denitrifying bacteria.
Further, according to parts by weight, 40 parts of acetic acid, 60 parts of ethyl alcohol, sucrose water 180 are contained in the fermentation liquid base fluid Part, 20 parts of magnesium sulfate, 35 parts of potassium dihydrogen phosphate, 75 parts of sodium chloride, 35 parts of sodium carbonate, 240 parts of glucose and 400 parts of distilled water.
A kind of preparation method of complex micro organism fungicide that improveing aquaculture system, by being added hybrid bacterial strain to hair Fermentation obtains in zymotic fluid base fluid.
The microbial inoculum is that ostreae testa pulverata, biological peptide and freeze drying protectant are added in hybrid bacterial strain fermentation liquid, is centrifuged and receives after mixing Collection precipitating, obtains the complex micro organism fungicide;Wherein, the quality of ostreae testa pulverata, biological peptide, freeze drying protectant and the fermentation liquid Than for (1~10): (0.1~5): (10~20): 100.
Further:
(1) according to each component weight in the fermentation liquid base fluid, each base-material is weighed respectively, is sufficiently dissolved, and pH to 7.0 is adjusted, It is spare that fermentation liquid base fluid is made in high pressure sterilization;
(2) according to parts by weight, 8-12 parts of bacillus subtilis, 10-13 parts of Rhodopseudomonas palustris, bacillus megaterium are taken 8-12 parts, 4-7 parts of lactobacillus acidophilus, 5-8 parts of streptococcus fecalis, 8-11 parts of Bacillus circulans, 7-10 parts of candida utili, nitre Change bacterium 4-9 parts and denitrifying bacteria 5-8 parts, each strain is seeded to fermentation base fluid illumination cultivation 3-7 at 30-37 DEG C respectively It;
(3) each bacterium solution obtained in step (2) is switched in fermentation base fluid again and expands culture, in 30-37 Illumination cultivation 5-8 days at DEG C, until total strain density in fermentation liquid reaches (1~10) × 108Stop fermentation when a/L;
(4) ostreae testa pulverata, biological peptide and freeze drying protectant are added in the fermentation liquid of Xiang Suoshu, is thoroughly mixed 8-12h, from Scheming centrifugation, removes supernatant, will precipitate vacuum freeze drying, obtain the complex micro organism fungicide.
The freeze drying protectant is the glycerite and aqueous trehalose for being in mass ratio 1-3:1-2, wherein glycerite Concentration is 30%, algae sugar juice concentration is 10%;Wherein, glycerite, aqueous trehalose are commercial products.
A kind of preparation method of complex micro organism fungicide that improveing aquaculture system, the microbial inoculum is as aquaculture water The application in growth accelerator that the fungicide of body, the cleanser of breeding water body or cultivation are used as.
The beneficial effects of the present invention are:
Include in complex micro organism fungicide in the present invention it is quick the microorganism of dissolved oxygen is provided, and containing water can be decomposed The microorganism of ammonia nitrogen, hydrogen sulfide and nitrite in body, while also containing nutrition needed for growth and development can be provided for aquatic livestock The bacterial strain of substance.Have complementary advantages between each bacterial strain, collaboration plays a role;It quickly can breed to be formed after being further applied to water body Dominant population, macromolecular organic matter, residual bait excrement in fast decoupled aquaculture system etc., ammonia nitrogen, phosphorus in water body of degrading, The substances such as nitrite, hydrogen sulfide, purify water, and improve water body dissolved oxygen content, and can remove pathogenic bacteria, such as pathogenic large intestine Bacillus, mould, staphylococcus aureus, Candida albicans etc..The composite bacteria agent is with good stability and high efficiency, can be strong Change aquatic animal constitution and promote Animal performance, reduces the death rate in breeding process.And the preparation side of the microbial bacterial agent Method is simple, and production cost is low.
Specific embodiment:
Technical solution of the present invention is further elaborated below with reference to embodiment, described embodiment is only this hair Bright a part of the embodiment, but institute's protection scope of the present invention is without being limited thereto, based on the embodiments of the present invention, ordinary skill Personnel's obtained all other embodiment without making creative work belongs to what the present invention was protected Range.
Embodiment 1: it is a kind of improve aquaculture system complex micro organism fungicide preparation method, as follows into Row:
(1) according to each component weight in the fermentation liquid base fluid, 30 grams of fermentation liquid base fluid base-material acetic acid, ethyl alcohol are weighed respectively 50 grams, 150 grams of sucrose water, 10 grams of magnesium sulfate, 20 grams of potassium dihydrogen phosphate, 50 grams of sodium chloride, 20 grams of sodium carbonate, 150 grams of glucose With 300 grams of distilled water.Sufficiently dissolution, adjusts pH to 7.0, and it is spare that fermentation liquid base fluid is made in high pressure sterilization;
(2) 8 grams of bacillus subtilis, 10 grams of Rhodopseudomonas palustris, huge bud are taken according to parts by weight according to parts by weight 8 grams of spore bacillus, 4 grams of lactobacillus acidophilus, 5 grams of streptococcus fecalis, 8 grams of Bacillus circulans, 7 grams of candida utili, nitrobacteria 4 Gram and 5 grams of denitrifying bacteria, by each strain be in mass ratio 3% inoculum concentration be seeded to fermentation base fluid at 30-32 DEG C illumination train After supporting 3-7 days each bacterium solution is forwarded in fermentation base fluid for the inoculation of 3% inoculum concentration in mass ratio again and expands culture, in 30-32 Illumination cultivation 5-8 days at DEG C, until total strain density in fermentation liquid reaches (8~10) × 108Stop fermentation when a/L.
(3) mass ratio of ostreae testa pulverata, corn peptide, freeze drying protectant and the fermentation liquid is 3:1:10:100, wherein being lyophilized Protective agent is that mass fraction is 30% glycerite (as 30g glycerol is dissolved in 70g water) and 10% aqueous trehalose, the two matter Amount is than being 3:1.It is thoroughly mixed 10h, 4000rpm/min centrifugation removes supernatant, precipitating pressed -50 DEG C of pre-freeze 5h, gradually It is warming up to the dry total 12h of 30 DEG C of trunks and carries out vacuum freeze drying, obtain the complex micro organism fungicide.
Embodiment 2:
Prepared by the step of complex micro organism fungicide is recorded by embodiment 1, difference from Example 1 is:
(1) according to each component weight in the fermentation liquid base fluid, 40 grams of fermentation liquid base fluid base-material acetic acid, ethyl alcohol are weighed respectively 60 grams, 180 grams of sucrose water, 20 grams of magnesium sulfate, 35 grams of potassium dihydrogen phosphate, 75 grams of sodium chloride, 35 grams of sodium carbonate, 240 grams of glucose With 400 grams of distilled water.Sufficiently dissolution, adjusts pH to 7.0, and it is spare that fermentation liquid base fluid is made in high pressure sterilization;
(2) 10 grams of bacillus subtilis, 12 grams of Rhodopseudomonas palustris, huge bud are taken according to parts by weight according to parts by weight 10 grams of spore bacillus, 5 grams of lactobacillus acidophilus, 7 grams of streptococcus fecalis, 9 grams of Bacillus circulans, 8 grams of candida utili, nitrobacteria 7 grams and 6 grams of denitrifying bacteria.
(3) mass ratio of ostreae testa pulverata, corn peptide, freeze drying protectant and the fermentation liquid is that 5:3:15:100 (use by embodiment Specific point value)
Embodiment 3:
Prepared by the step of complex micro organism fungicide is recorded by embodiment 1, difference from Example 1 is:
(1) according to each component weight in the fermentation liquid base fluid, 50 grams of fermentation liquid base fluid base-material acetic acid, ethyl alcohol are weighed respectively 70 grams, 200 grams of sucrose water, 30 grams of magnesium sulfate, 50 grams of potassium dihydrogen phosphate, 100 grams of sodium chloride, 50 grams of sodium carbonate, 300 grams of glucose With 500 grams of distilled water.Sufficiently dissolution, adjusts pH to 7.0, and it is spare that fermentation liquid base fluid is made in high pressure sterilization;
(2) 12 grams of bacillus subtilis, 13 grams of Rhodopseudomonas palustris, huge bud are taken according to parts by weight according to parts by weight 12 grams of spore bacillus, 7 grams of lactobacillus acidophilus, 8 grams of streptococcus fecalis, 11 grams of Bacillus circulans, 10 grams of candida utili, nitrification are thin 9 grams and 8 grams of denitrifying bacteria of bacterium.
(3) mass ratio of ostreae testa pulverata, corn peptide, freeze drying protectant and the fermentation liquid is 9:5:20:100.
Embodiment 4: the aquatic livestock specific complex microbial bacterial agent prepared using this method is chosen two 20 mu of prawns and supported Pond is grown, 2 microbial inoculum of above-described embodiment is thrown in a wherein pond and carries out application test, wherein dosage 1kg;It is another It is a not add as control, test result such as table 1:
Table 1: aquatic livestock application test
Test group compared with the control group, the COD (COD) in test group pond, ammonia nitrogen (NH4+-N), nitroso The degradation effect of nitrogen (NO2-N) is obvious, and after complex micro organism fungicide is launched, the deenergized period of product is 1-2 months, launches 1 After month, the indices of aquaculture pond water body are stablized, and water quality is good.Beneficial microbe in complex micro organism fungicide is in life Metabolism generates the substance for facilitating aquatic livestock growth in growth process, and effect not only makes to be greatly improved in terms of water quality, more The autoimmunity and intestinal microenvironment of aquatic livestock further are enhanced, and inhibits the numerous of pathogenic microorganism in water body It grows, wherein test group reduces 54% than the disease incidence of control group prawn, and prawn yield improves 30% relatively, improves The economic benefit of aquaculture.
Above-described embodiment is obtained complex micro organism fungicide simultaneously to be applied in breeding water body, similarly there is above-mentioned effect Fruit.
Comparative example 1: the microbial bacterial agent used for aquiculture of certain Biotechnology Co., Ltd production
Method: taking 5 parts of aquaculture system 2L, is separately added into above-described embodiment 2 and certain Biotechnology Co., Ltd produces Microbial bacterial agent used for aquiculture (mainly contain bacillus subtilis, bacillus licheniformis) 2g, every three days plus microbial inoculum is primary, even It is continuous to feed intake after three weeks, measurement result.
Each component content table of water body such as table 1 before testing
Table 1
COD(mg/L) NH4 +-N(mg/L) Total nitrogen (mg/L) Total phosphorus (mg/L) NO2 --N(mg/L)
193 9.5 17.4 2.07 1.88
Water body after microbial bacterial agent is added to detect concrete condition such as table 2
Table 2
By above-mentioned comparison it is found that present invention microbial bacterial agent produced, the water pollution for effectively solving aquaculture are asked Topic, and it is not likely to produce secondary pollution.
Comparative example 2: the microbial bacterial agent used for aquiculture of certain Biotechnology Co., Ltd production
Method: choosing 4 20 mu of prawn culturing ponds, applies embodiment 2 and comparative example (the limited public affairs of certain biotechnology respectively Take charge of production microbial bacterial agent used for aquiculture, contain bacillus subtilis, bacillus licheniformis) prepared by microbial bacterial agent 1000g, one of them does not add any microbial bacterial agent, and application microbial inoculum is primary within every 15 days, after continuous dosing March, measurement knot Fruit.
Detection project Embodiment 2 Comparative example It is not added with microbial inoculum group
Average every prawn weight g 30.4 24.7 20.3
By above-mentioned comparison it is found that present invention microbial bacterial agent produced, improves the upgrowth situation of aquatic livestock, improve The yield and quality of aquatic products.It is a kind of safe and efficient microbial bacterial agent used for aquiculture, is worthy to be popularized and uses.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (10)

1. a kind of complex micro organism fungicide for improveing aquaculture system, it is characterised in that: microbial inoculum is bacillus subtilis, marsh Red pseudomonas, bacillus megaterium, lactobacillus acidophilus, streptococcus fecalis, Bacillus circulans, candida utili, nitrification are thin Bacterium and denitrifying bacteria hybrid bacterial strain tunning.
2. the complex micro organism fungicide of improvement aquaculture system according to claim 1, it is characterised in that: the microbial inoculum is Ostreae testa pulverata, biological peptide and freeze drying protectant are added in hybrid bacterial strain fermentation liquid, precipitating is collected by centrifugation after mixing, obtains described compound Microbial bacterial agent;Wherein, the mass ratio of ostreae testa pulverata, biological peptide, freeze drying protectant and the fermentation liquid is (1~10): (0.1~ 5): (10~20): 100.
3. the complex micro organism fungicide of improvement aquaculture system as described in claim 2, it is characterised in that: the freeze-drying is protected Protecting agent is the glycerite and aqueous trehalose for being in mass ratio 1-3:1-2, wherein glycerite concentration is that 30% trehalose is molten Liquid concentration is 10%.
4. the complex micro organism fungicide of improvement aquaculture system as described in claim 1 or 2, it is characterised in that: the hair Zymotic fluid is illumination cultivation 5-8 days at 30-37 DEG C by the inoculum concentration of 3%-5% in fermentation liquid base fluid by hybrid bacterial strain, until hair Total strain density in zymotic fluid reaches (1~10) × 108Stop fermentation when a/L;Wherein, fermentation liquid base fluid according to parts by weight, second 30-50 parts sour, 50-70 parts of ethyl alcohol, 150-200 parts of sucrose water, 10-30 parts of magnesium sulfate, 20-50 parts of potassium dihydrogen phosphate, sodium chloride 50-100 parts, 20-50 parts of sodium carbonate, 150-300 parts of glucose and 300-500 parts of distilled water.
5. the complex micro organism fungicide of improvement aquaculture system according to claim 4, it is characterised in that: the Mixed Microbes Strain is according to parts by weight, 8-12 parts of bacillus subtilis, 10-13 parts of Rhodopseudomonas palustris, 8-12 parts of bacillus megaterium, thermophilic 4-7 parts of Lactobacillus lactis, 5-8 parts of streptococcus fecalis, 8-11 parts of Bacillus circulans, 7-10 parts of candida utili, nitrobacteria 4-9 Part and denitrifying bacteria 5-8 parts.
6. a kind of preparation method of the complex micro organism fungicide of improvement aquaculture system described in claim 1, feature exist In: it is obtained by the way that hybrid bacterial strain is added to ferment into fermentation liquid base fluid.
7. the preparation method of the complex micro organism fungicide of improvement aquaculture system according to claim 6, it is characterised in that: The microbial inoculum is that ostreae testa pulverata, biological peptide and freeze drying protectant are added in hybrid bacterial strain fermentation liquid, and precipitating is collected by centrifugation after mixing, obtains To the complex micro organism fungicide;Wherein, the mass ratio of ostreae testa pulverata, biological peptide, freeze drying protectant and the fermentation liquid be (1~ 10): (0.1~5): (10~20): 100.
8. by the preparation method of the complex micro organism fungicide of improvement aquaculture system described in claim 6 or 7, feature exists In: (1) according in fermentation liquid base fluid each component weight, each base-material is weighed respectively, is sufficiently dissolved, and adjusts pH to 7.0, high pressure is gone out It is spare that fermentation liquid base fluid is made in bacterium;
(2) according to parts by weight, 8-12 parts of bacillus subtilis, 10-13 parts of Rhodopseudomonas palustris, bacillus megaterium 8-12 are taken Part, 4-7 parts of lactobacillus acidophilus, 5-8 parts of streptococcus fecalis, 8-11 parts of Bacillus circulans, 7-10 parts of candida utili, nitrification are thin 4-9 parts and denitrifying bacteria 5-8 parts of bacterium, each strain is seeded to fermentation base fluid respectively illumination cultivation 3-7 days at 30-37 DEG C;
(3) each bacterium solution obtained in step (2) is switched in fermentation base fluid again and expands culture, at 30-37 DEG C Illumination cultivation 5-8 days, until total strain density in fermentation liquid reaches (1~10) × 108Stop fermentation when a/L;
(4) ostreae testa pulverata, biological peptide and freeze drying protectant are added in the fermentation liquid of Xiang Suoshu, is thoroughly mixed 8-12h, centrifuge Centrifugation removes supernatant, will precipitate vacuum freeze drying, obtain the complex micro organism fungicide.
9. the preparation method of the complex micro organism fungicide of improvement aquaculture system according to claim 8, it is characterised in that: The freeze drying protectant is the glycerite and aqueous trehalose for being in mass ratio 1-3:1-2, wherein glycerite concentration is 30% aqueous trehalose concentration is 10%.
10. a kind of preparation method of the complex micro organism fungicide of improvement aquaculture system described in claim 1, feature exist In: in the growth accelerator that the microbial inoculum is used as the fungicide of aquaculture system, the cleanser of breeding water body or cultivation Using.
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