CN103989022A - Phagostimulant specially used for hybrid snakeheads and preparation method thereof - Google Patents
Phagostimulant specially used for hybrid snakeheads and preparation method thereof Download PDFInfo
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- CN103989022A CN103989022A CN201410251676.8A CN201410251676A CN103989022A CN 103989022 A CN103989022 A CN 103989022A CN 201410251676 A CN201410251676 A CN 201410251676A CN 103989022 A CN103989022 A CN 103989022A
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- JDLKFOPOAOFWQN-UHFFFAOYSA-N allicin Chemical compound C=CCSS(=O)CC=C JDLKFOPOAOFWQN-UHFFFAOYSA-N 0.000 claims description 2
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Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
- Y02A40/818—Alternative feeds for fish, e.g. in aquacultures
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- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention belongs to the technical field of an aquatic feed additive, and particularly discloses a phagostimulant specially used for hybrid snakeheads and a preparation method of the phagostimulant. The phagostimulant comprises the following components by dry matter mass percent: 15-30% of compound Chinese herbal medicine extract, 34-51% of compound amino acid, 15-20% of a sulfur compound, 10-20% of alkaloid and 9-24% of nucleotide, wherein the compound Chinese herbal medicine extract is prepared from the following raw materials: radix astragali, cinnamon, peppermint, fructus forsythiae and sophora flavescens. A great number of creative tests prove that the phagostimulant has a synergetic effect by using the compound Chinese herbal medicine extract comprising the radix astragali, the cinnamon, the peppermint, the fructus forsythiae and the sophora flavescens together with the compound amino acid, the sulfur compound, the alkaloid and the nucleotide according to the specific formula, and is capable of remarkably improving the food calling effect of the hybrid snakeheads.
Description
Technical field
The present invention relates to feeding additive aquatic animal technical field, be specifically related to a kind of hybridized snakehead fish (Channa maculatus (♀) C.argus (♂)) phagostimulant specially and preparation method thereof.
Background technology
Snakehead (Channa argus) and snakehead (Channa maculata) are the important native country fish of China, belong to Perciformes (Perciformes), Anabantoidei (Anabantoidei), murrel section (Channidae), Ophiocephalus (Channa) together.Hybridized snakehead fish is the Interspecific Hybrids that snakehead and snakehead obtain by distant hybridization, has growth fast, and material is than obvious distant hybridization advantage such as low grade.Whole nation hybridized snakehead fish total output is by 180,000 tons in 2003, and 450,000 tons of steady-state growth to 2013 year have formed the complete industrial chain that is worked into transportation and sale by seed production, cultivation, feed.For the demand of hybridized snakehead fish feed, also at increase year after year.Yet the food calling problem of hybridized snakehead fish feed, still solves completely, a large amount of raisers still use in a large number chilled trash fish in breeding process, and severe exacerbation water body, has restricted the sound development of industry.
The phagostimulant of hybridized snakehead fish special use can stimulate olfactory system and the sense of taste system of hybridized snakehead fish in seedling stage, makes it near food actively feed.It has following functions: (1) makes hybridized snakehead fish can adapt to artifical compound feed, breaks away from the dependence to chilled trash fish.(2) reduce the impact of vegetable raw material on hybridized snakehead fish feed palatability, excavate vegetable raw material application potential, reduce the discharge of nitrogen phosphorus, alleviate animal protein resource scarcity situation.(3) it is the desirable starter diet phagostimulant of hybridized snakehead fish in seedling stage, impels hybridized snakehead fish initial feeding morning in seedling stage, obviously improves the healthy development of survival rate assurance cultivation middle and later periods.(4) hybridized snakehead fish in intensive culture is perplexed by disease often, adds and can promote the hybridized snakehead fish pharmaceutical chemistry of ingesting smoothly after ingesting.
Liu Xin in 2011 is lost etc. and has studied the impact of different additive on hybridized snakehead fish growth and non-specific immunity.Result shows: in feed, add betaine, immune polysaccharide or probio all quickening in various degree the hybridized snakehead fish speed of growth and increase mass effect.And compound amino acid and control group approach, some index is also lower than control group, and effect is poor.Prior art is also weaker for the research of hybridized snakehead fish phagostimulant, especially lacks the hybridized snakehead fish phagostimulant specially that effect is remarkable, nutrition is complete.
Summary of the invention
For the problems referred to above, the object of this invention is to provide phagostimulant of a kind of hybridized snakehead fish special use and preparation method thereof, can effectively promote the hybridized snakehead fish feed of ingesting, to reach the dependence of breaking away from chilled fish, reduce feed coefficient, the effect that expands vegetable protein application potential and improve raiser's profitability.
For achieving the above object, the technical solution used in the present invention is as follows:
A hybridized snakehead fish phagostimulant specially, in dry biomass percentage, comprises following component: composite Chinese herbal extract 15 ~ 30%, compound amino acid 34 ~ 51%, sulfur-containing compound 15 ~ 20%, alkaloid 10 ~ 20%, nucleotides 9 ~ 24%; The raw material of described composite Chinese herbal extract is the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng.
The present invention finds by a large amount of creative tests: compound amino acid, sulfur-containing compound, alkaloid and nucleotides that the compound Chinese medicine extract of the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng is used with routine are used together with special formulation, the effect of Synergistic can be played, the food calling effect of hybridized snakehead fish can be significantly improved.
As preferred embodiment, the mass percent of the described Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng is respectively 30%, 20%, 20%, 20%, 10%.
As preferred embodiment, described sulfur-containing compound is dimethyl-β-DMPT, allicin or its mixture.
As preferred embodiment, described alkaloid is betaine, trimethylamine hydrochloride or its mixture.
As preferred embodiment, described nucleotides is one or more in adenosine diphosphate (ADP) (ADP), adenosine monophosphate (AMP) and inosine-5 ' monophosphate (IMP).
As more preferred, described hybridized snakehead fish phagostimulant specially, in dry biomass percentage, comprise following component: composite Chinese herbal extract 15 ~ 25%, taurine 10 ~ 20%, alanine 8 ~ 10%, glycine 8 ~ 10%, arginine 8 ~ 10%, dimethyl-β-DMPT 10 ~ 15%, betaine 10 ~ 20%, ADP3 ~ 5%, AMP3 ~ 5%, IMP3 ~ 5%; The raw material of described composite Chinese herbal extract comprises 30% Radix Astragali, 20% Chinese cassia tree, 20% peppermint, 20% capsule of weeping forsythia and 10% kuh-seng.
The hybridized snakehead fish that phagostimulant of the present invention is particularly useful for female snakehead and male snakehead hybridization gained eats.
The preparation method of hybridized snakehead fish phagostimulant specially, comprises the steps: as mentioned above
S1. the preparation of composite Chinese herbal extract: the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng are mixed in proportion, pulverize and sieve; Add after water stirs and cross colloid mill mixing homogeneous; Filtration residue after hot water extracting, obtains the preliminary extract of Chinese herbal medicine, after preliminary extract is concentrated, adds 95% ethanol to precipitate, and dry sediment obtains composite Chinese herbal extract;
S2. composite Chinese herbal extract and other raw materials are mixed in proportion, make the coefficient of variation be less than 5%, through ultramicro grinding, after sieving, obtain hybridized snakehead fish phagostimulant specially.
Preferably, the preparation method of described hybridized snakehead fish phagostimulant specially is:
S1. the preparation of composite Chinese herbal extract: the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng are mixed in proportion, pulverize and sieve; Mass ratio by raw material: water=1:12 adds water to herbal raw material, crosses colloid mill mixing homogeneous 3 times after stirring; 100 ℃ of hot water extracting 4 hours, filtration residue, obtains the preliminary extract of Chinese herbal medicine, and after preliminary extract is concentrated into 1/10th, (mass ratio is raw material: ethanol=1:10) precipitate to add 95% ethanol; Dry sediment obtains composite Chinese herbal extract;
S2. composite Chinese herbal extract and other raw materials are mixed in proportion, make the coefficient of variation be less than 5%, through ultramicro grinding, after sieving, obtain hybridized snakehead fish phagostimulant specially.
The addition of phagostimulant of the present invention in feed is 0.5 ~ 1.5%.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention finds by a large amount of creative tests: compound amino acid, sulfur-containing compound, alkaloid and nucleotides that the compound Chinese medicine extract of the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng is used with routine are used together with special formulation, the effect of Synergistic can be played, the food calling effect of hybridized snakehead fish can be significantly improved.Thereby the breeding process that makes hybridized snakehead fish is broken away from the dependence for chilled trash fish, make breeding process safety controlled, survival rate rises, and diseases prevention water transfer expense declines, and raiser's profitability rises.In addition, when in prior art, report is used compound amino acid as phagostimulant separately, for hybridized snakehead fish, there is no food calling effect, the present invention is by being used in combination compound amino acid and compound Chinese medicine extract, sulfur-containing compound, alkaloid and nucleotides, make each nutritional labeling in function, mutually supplement, mutually coordinate, finally played synergistic function.
2, owing to having added composite Chinese herbal extract in hybridized snakehead fish phagostimulant specially of the present invention, multiple complex polysaccharide, oligosaccharides, organic acid, alkaloid, amino acid etc. are rich in the inside.Not only can effectively promote aquatic livestock to ingest, enhancement be digested and assimilated, and reduces feed coefficient, can also improve immunologic function, improves body resistance against diseases, improves cultivation probalility of success.
3, owing to having added compound amino acid in hybridized snakehead fish phagostimulant specially of the present invention, make amino acid in feed balance more, more meet the amino acid requirement of murrel section fish, obviously improve the Protein utilization of hybridized snakehead fish, reduce material ratio, reduce the discharge of nitrogen phosphorus.
4, owing to adding nucleotides and alkaloid in hybridized snakehead fish phagostimulant specially of the present invention, strengthen hybridized snakehead fish liver function, improve the body anti-stress ability of environment-stress to external world, improve survival rate, promote growth.
5, the addition of hybridized snakehead fish phagostimulant specially of the present invention in feed is only 0.5 ~ 1.5%, can add in process of production, also can before finished product is thrown something and fed, add water spice and use, handled easily and popularization.
6, the equal steady sources of hybridized snakehead fish phagostimulant specially raw material of the present invention, meets national feed addictive and uses standard and other laws and regulations, has no side effect, and can not produce harmful effect to the nutritive value of hybridized snakehead fish and food security.
The specific embodiment
Below in conjunction with specific embodiment, further describe the present invention.Unless stated otherwise, reagent, the equipment that the present invention adopts is the conventional reagent of the art and equipment.
embodiment 1
By percentage by weight, be that 30% Radix Astragali, 20% Chinese cassia tree, 20% peppermint, 20% capsule of weeping forsythia and 10% kuh-seng mix and through ultramicro grinding, cross 200 mesh sieves and obtain mixture, after adding water (raw material is 1:12 with the mass ratio of water) and stirring, through colloid mill mixings homogeneous 3 times, 100 spend hot water extracting 4 hours.Filtration residue, obtains the preliminary extract of Chinese herbal medicine, and is concentrated into 1/10.Add 95% ethanol (raw material: the mass ratio=1:10 of ethanol) active ingredient is precipitated.Gained sediment is sprayed dry, and shower nozzle rotating speed is 15000 ~ 18000 rpms, intake air temperature 200 ~ 220 degree, and air outlet temperature 90 ~ 100 degree, negative pressure 100mpa, obtains Chinese medical extract.
A hybridized snakehead fish phagostimulant specially, in dry biomass percentage, comprises following component: composite Chinese herbal extract 15%, taurine 20%; alanine 8%, glycine 8%, arginine 8%, dimethyl-β-DMPT 11%; betaine 15%, ADP5%, AMP5%, IMP5%.In above-mentioned raw materials ratio, mix after (coefficient of variation is less than 5%), then pass through ultramicro grinding (cross 200 eye mesh screens) and can obtain hybridized snakehead fish phagostimulant specially.
The brilliant cultivation base in Guangdong, experimental group is added 1% hybridized snakehead fish phagostimulant specially, with control group (do not add and use chilled fish spice to throw something and feed) contrast test.Raise first starting weight and be the hybridized snakehead fish (every mouthful pool 1.5 mu, 10,000 every mu, experimental group and control group be totally 8 mouthfuls of pools, 120,000) of 15 grams.Control group feed contains following component (dry weight mass percent): fish meal 40%, dregs of beans 15%, chicken meal 15%, wheat flour 20%, fish oil 4%, soya-bean oil 1%, soybean lecithin oil 1%, calcium dihydrogen phosphate 1.5%, Choline Chloride 1%, all the other additives 1.5%.
Cultivation through 60 days.Result shows, the edible hybridized snakehead fish that adds hybridized snakehead fish phagostimulant specially feed adds without any chilled trash fish, and food ration increases by 6% than control group.Feed coefficient (1.03) is lower than control group (1.19), and specific growth rate (2.17) is than control group (1.94) height.In same culturing time (60 days), the specification of hybridized snakehead fish reaches 54 grams/bar, and control group is 48 grams/bar.The expenditure of water transfer and expenses for medicine has reduced 25 yuan/mu.
embodiment 2
By percentage by weight, be that 30% Radix Astragali, 20% Chinese cassia tree, 20% peppermint, 20% capsule of weeping forsythia and 10% kuh-seng mix and through ultramicro grinding, cross 200 mesh sieves and obtain mixture, add water (raw material: the mass ratio=1:12 of water) stir after through colloid mill mixing homogeneous 3 times; 100 ℃ of hot water extracting 4 hours; Filtration residue, obtains the preliminary extract of Chinese herbal medicine, and is concentrated into 1/10; Add 95% ethanol (raw material: ethanol mass ratio=1:10) active ingredient is precipitated.Gained sediment is sprayed dry, and shower nozzle rotating speed is 15000 ~ 18000 rpms, 200 ~ 220 ℃ of intake air temperatures, 90 ~ 100 ℃ of air outlet temperature, negative pressure 100mpa.Obtain Chinese medical extract.
A hybridized snakehead fish phagostimulant specially, in dry biomass percentage, comprises following component: composite Chinese herbal extract 20%, taurine 10%; alanine 10%, glycine 10%, arginine 10%, dimethyl-β-DMPT 15%; betaine 10%, ADP5%, AMP5%, IMP5%.In above-mentioned raw materials ratio, mix after (coefficient of variation is less than 5%), then pass through ultramicro grinding (cross 200 eye mesh screens) and can obtain hybridized snakehead fish phagostimulant specially.
At Shunde, all pacify cultivation base, experimental group is added 1.2% hybridized snakehead fish phagostimulant specially, with control group (do not add and use chilled fish spice to throw something and feed) contrast test.Raise first starting weight and be the hybridized snakehead fish (every mouthful pool 3 mu, 1.5 ten thousand every mu, experimental group and control group be totally 6 mouthfuls of pools, 270,000) of 10 grams.Control group feed contains following component (dry weight mass percent): fish meal 40%, dregs of beans 15%, chicken meal 15%, wheat flour 20%, fish oil 4%, soya-bean oil 1%, soybean lecithin oil 1%, calcium dihydrogen phosphate 1.5%, Choline Chloride 1%, all the other additives 1.5%.
Cultivation through 55 days.Result shows, the edible hybridized snakehead fish that adds hybridized snakehead fish phagostimulant specially feed adds without any chilled trash fish, and food ration increases by 5% than control group.Feed coefficient (1.05) is lower than control group (1.13), and specific growth rate (2.34) is than control group (2.01) height.In same culturing time (55 days), the specification of hybridized snakehead fish reaches 35 grams/bar, and control group is 31 grams/bar.The expenditure of water transfer and expenses for medicine has reduced 50 yuan/mu.
embodiment 3
By percentage by weight, be that 30% Radix Astragali, 20% Chinese cassia tree, 20% peppermint, 20% capsule of weeping forsythia and 10% kuh-seng mix and through ultramicro grinding, cross 200 mesh sieves and obtain mixture, add water (raw material: water quality ratio=1:12) stir after through colloid mill mixing homogeneous 3 times.100 ℃ of hot water extracting 4 hours.Filtration residue, obtains the preliminary extract of Chinese herbal medicine, and is concentrated into 1/10.Add 95% ethanol (raw material: ethanol mass ratio=1:10) active ingredient is precipitated.Gained sediment is sprayed dry, and shower nozzle rotating speed is 15000 ~ 18000 rpms, 200 ~ 220 ℃ of intake air temperatures, 90 ~ 100 ℃ of air outlet temperature, negative pressure 100mpa.Obtain Chinese medical extract.
A hybridized snakehead fish phagostimulant specially, in dry biomass percentage, comprises following component: composite Chinese herbal extract 25%, taurine 10%; alanine 8%, glycine 8%, arginine 8%, dimethyl-β-DMPT 15%; betaine 17%, ADP3%, AMP3%, IMP3%.In above-mentioned raw materials ratio, mix after (coefficient of variation is less than 5%), then pass through ultramicro grinding (cross 200 eye mesh screens) and can obtain hybridized snakehead fish phagostimulant specially.
In cultivation base, sea-gull island, Fanyu, Guangzhou Guangdong, experimental group is added 1.5% hybridized snakehead fish phagostimulant specially, with control group (do not add and use chilled fish spice to throw something and feed) contrast test.Raise first starting weight and be the hybridized snakehead fish (every mouthful pool 2 mu, 1.5 ten thousand every mu, experimental group and control group be totally 5 mouthfuls of pools, 150,000) of 20 grams.Control group feed contains following component (dry weight mass percent): fish meal 40%, dregs of beans 15%, chicken meal 15%, wheat flour 20%, fish oil 4%, soya-bean oil 1%, soybean lecithin oil 1%, calcium dihydrogen phosphate 1.5%, Choline Chloride 1%, all the other additives 1.5%.
Cultivation through 60 days.Result shows, the edible hybridized snakehead fish that adds hybridized snakehead fish phagostimulant specially feed adds without any chilled trash fish, and food ration increases by 3% than control group.Feed coefficient (1.09) is lower than control group (1.15), and specific growth rate (2.02) is than control group (1.83) height.In same culturing time (60 days), the specification of hybridized snakehead fish reaches 71 grams/bar, and control group is 60 grams/bar.The expenditure of water transfer and expenses for medicine has reduced 35 yuan/mu.
comparative example 1
By the composite Chinese herbal extract in phagostimulant described in embodiment 2, be used in Shunde and all pacify cultivation base, experimental group is added 1.2% composite Chinese herbal extract, with control group (do not add and use chilled fish spice to throw something and feed) contrast test.Raise first starting weight and be the hybridized snakehead fish (every mouthful pool 3 mu, 1.5 ten thousand every mu, experimental group and control group be totally 6 mouthfuls of pools, 270,000) of 10 grams.Control group feed contains following component (dry weight mass percent): fish meal 40%, dregs of beans 15%, chicken meal 15%, wheat flour 20%, fish oil 4%, soya-bean oil 1%, soybean lecithin oil 1%, calcium dihydrogen phosphate 1.5%, Choline Chloride 1%, all the other additives 1.5%.
Cultivation through 55 days.Result shows, the edible hybridized snakehead fish that adds composite Chinese herbal extract, without any chilled trash fish, adds, and food ration is than control group increase by 0.6%.Feed coefficient (1.10) is lower than control group (1.13), and specific growth rate (2.12) is than control group (2.01) height.In same culturing time (55 days), the specification of hybridized snakehead fish reaches 34 grams/bar, and control group is 30 grams/bar.
comparative example 2
Composite Chinese herbal extract in phagostimulant described in embodiment 2 is removed, the phagostimulant that remainder forms is used in Shunde and all pacifies cultivation base, the phagostimulant that the remainder of experimental group interpolation 1.2% forms, with control group (do not add and use chilled fish spice to throw something and feed) contrast test.Raise first starting weight and be the hybridized snakehead fish (every mouthful pool 3 mu, 1.5 ten thousand every mu, experimental group and control group be totally 6 mouthfuls of pools, 270,000) of 10 grams.Control group feed contains following component (dry weight mass percent): fish meal 40%, dregs of beans 15%, chicken meal 15%, wheat flour 20%, fish oil 4%, soya-bean oil 1%, soybean lecithin oil 1%, calcium dihydrogen phosphate 1.5%, Choline Chloride 1%, all the other additives 1.5%.
Cultivation through 55 days.Result shows, the edible hybridized snakehead fish that adds the phagostimulant cultivation that remainder forms, without any chilled trash fish, adds, and food ration is than control group increase by 0.2%.Feed coefficient (1.14) is lower than control group (1.15), and specific growth rate (2.01) is than control group (1.95) height.In same culturing time (55 days), the specification of hybridized snakehead fish reaches 35 grams/bar, and control group is 34 grams/bar.
Claims (8)
1. a hybridized snakehead fish phagostimulant specially, is characterized in that, in dry biomass percentage, comprises following component: composite Chinese herbal extract 15 ~ 30%, compound amino acid 34 ~ 51%, sulfur-containing compound 15 ~ 20%, alkaloid 10 ~ 20%, nucleotides 9 ~ 24%; The raw material of described composite Chinese herbal extract is the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng.
2. hybridized snakehead fish phagostimulant specially according to claim 1, is characterized in that, the mass percent of the described Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng is respectively 30%, 20%, 20%, 20%, 10%.
3. hybridized snakehead fish phagostimulant specially according to claim 1, is characterized in that, described sulfur-containing compound is dimethyl-β-DMPT, allicin or its mixture.
4. hybridized snakehead fish phagostimulant specially according to claim 1, is characterized in that, described alkaloid is betaine, trimethylamine hydrochloride or its mixture.
5. hybridized snakehead fish phagostimulant specially according to claim 1, is characterized in that, described nucleotides is one or more in adenosine diphosphate (ADP), adenosine monophosphate or inosine-5 ' monophosphate.
6. hybridized snakehead fish phagostimulant specially according to claim 1, is characterized in that, described hybridized snakehead fish is female snakehead and male snakehead hybridization gained.
7. according to hybridized snakehead fish phagostimulant specially described in claim 1 to 6 any one, it is characterized in that, in dry biomass percentage, comprise following component: composite Chinese herbal extract 15 ~ 25%, taurine 10 ~ 20%, alanine 8 ~ 10%, glycine 8 ~ 10%, arginine 8 ~ 10%, dimethyl-β-DMPT 10 ~ 15%, betaine 10 ~ 20%, ADP3 ~ 5%, AMP3 ~ 5%, IMP3 ~ 5%; The raw material of described composite Chinese herbal extract comprises 30% Radix Astragali, 20% Chinese cassia tree, 20% peppermint, 20% capsule of weeping forsythia and 10% kuh-seng.
8. the preparation method of hybridized snakehead fish phagostimulant specially described in claim 1 to 7 any one, is characterized in that, comprises the steps:
S1. the preparation of composite Chinese herbal extract: the Radix Astragali, Chinese cassia tree, peppermint, the capsule of weeping forsythia and kuh-seng are mixed in proportion, pulverize and sieve; Add after water stirs and cross colloid mill mixing homogeneous; Filtration residue after hot water extracting, obtains the preliminary extract of Chinese herbal medicine, after preliminary extract is concentrated, adds 95% ethanol to precipitate, and dry sediment obtains composite Chinese herbal extract;
S2. composite Chinese herbal extract and other raw materials are mixed in proportion, make the coefficient of variation be less than 5%, through ultramicro grinding, after sieving, obtain hybridized snakehead fish phagostimulant specially.
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