CN107788271A - A kind of cray micro-encapsulated diet and preparation method thereof - Google Patents
A kind of cray micro-encapsulated diet and preparation method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
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- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Abstract
The present invention relates to technical field of aquaculture feedstuff, more particularly to cray micro-encapsulated diet；Including following raw material：Silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, analysis for soybean powder, mixture, composite ore material, vitamin mixtures, pomelo peel, soybean lecithin, fish oil, Choline Chloride, sodium dihydrogen phosphate, wall material；The present invention passes through special raw material proportioning, and add special mixture, add the fragrance of micro-encapsulated diet, cray feeding urges are improved, so as to add yield, improve cray quality, its per mu yield is up to 201.2kg/ mus, single cabrage 49.7g, amino acid content are up to 17.23%, it is necessary to which amino acid content is up to 6.89%.Fresh ear field content is up to 6.83%.
Description
Technical field
The present invention relates to technical field of aquaculture feedstuff, more particularly to cray micro-encapsulated diet and preparation method thereof.
Background technology
Cray (scientific name：Procambarus clarkii)：Also referred to as Procambius clarkii, red crayfish and freshwater crayfish.Shape
Like shrimp, crust is hard.Adult is about 5.6~11.9 centimetres, kermesinus, the nearly black in crust part, and belly back side has a wedge-shaped bar
Line.Cray is economic freshwater shrimps, and internal protein content is very high, and meat is soft, easy to digest, in poor health and
The people for needing to raise after being ill is fabulous food；Also rich in magnesium, zinc, iodine, selenium etc. in shrimp, magnesium has important to cardiomotility
Adjustment effect, cardiovascular system can be protected, it can reduce blood cholesterol level, prevent artery sclerosis, while can also expand
Coronary artery, be advantageous to preventing hypertension and miocardial infarction.Cray contains astaxanthin, and astaxanthin is a kind of very strong anti-oxidant
Agent, the scientist of Osaka, Japan university have found, astaxanthin help elimination because of jet lag and caused by " jet lag ".It is in addition, small
Lobster can also be used as medicine, and energy preventing phlegm from forming and stopping coughing, promote postoperative wound myogenic to heal.
Thus, cray has become Important Economic breed variety in China in recent years, and cultivation amount increases year by year, but mesh
The feed of preceding artificial farming cray, the feed shortcoming overall balance based on fish meal, dregs of beans, feed formula is improper, and digestion is not
It is good, excrement eutrophication, it is allowed to fermentation and produces substantial amounts of ammonia and hydrogen sulfide stink body, turn into environmental pollution therewith draining
Source.In addition, particulate feed is soluble in water, feed waste is not only caused, also polluted-water, influence the growth of cray.
Therefore, start to produce micro-encapsulated diet, but capsule feed owes the sense of taste, influences the dietary amount of cray, causes to produce
Amount reduces, meat nutrition difference etc..
The content of the invention
The present invention is in order to overcome conventional feed formula improper, indigestion, excrement eutrophication, and fermentation produces pollution sources
A kind of technical problem of defect, there is provided cray micro-encapsulated diet and preparation method thereof.
Realized particular by following technical scheme：
A kind of cray micro-encapsulated diet, including following mass parts raw material：Silkworm chrysalis 10-80 parts, fish meal 20-60 parts, potato
Powder 20-60 parts, bletilla striata powder 10-50 parts, wheat embryo 10-40 parts, analysis for soybean powder 10-40 parts, mixture 5-30 parts, composite ore material
5-30 parts, vitamin mixtures 5-30 parts, pomelo peel 1-15 parts, soybean lecithin 1-20 parts, fish oil 1-20 parts, Choline Chloride 1-10
Part, sodium dihydrogen phosphate 1-10 parts, wall material 1-10 parts.
Further, described cray micro-encapsulated diet, including following mass parts raw material：Silkworm chrysalis 60-70 parts, fish meal 50-
60 parts, mealy potato 40-45 parts, bletilla striata powder 40-45 parts, wheat embryo 20-30 parts, analysis for soybean powder 20-30 parts, mixture 10-20 parts,
Composite ore material 10-20 parts, vitamin mixtures 10-15 parts, pomelo peel 10-15 parts, soybean lecithin 10-13 parts, fish oil 10-15
Part, Choline Chloride 6-8 parts, sodium dihydrogen phosphate 5-7 parts, wall material 5-8 parts.
Further, described mixture, be by earthworm, rhizoma Gastrodiae, violet cabbage, cockroach, egg, marine alga according to etc. quality mix
Close, crush, add 2-3 times of quality clear water, obtain compound, add cellulase, the 1.3- of 0.8-1.2% mixture qualities
1.7% saccharomycete, 17-20 DEG C of fermentation 17-20h, 30-33 DEG C of closing fermentation 20-24h, 50-60 DEG C, 300-400r/min stirrings
2-3h, 8000-10000rpm centrifuge 30-40min, take supernatant, supernatant and precooling 40-50min at -10~15 DEG C, thaw
The ethanol of 1/2-3/4 times of supernatant quality is added afterwards, 70-100r/min stirring 20-30min, is freezed, powder 1 is obtained, by powder 1
Ultramicro grinding is carried out both to obtain.
Further, described composite ore material, it is by sodium chloride 20-25 parts, monohydrate zinc sulphate 5-8 parts, manganese sulfate monohydrate
5-7 parts, epsom salt 3-6 parts, calcium chloride 2-5 parts, pearl powder 3-5 parts, bentonite 3-5 parts mix.
Further, described vitamin mixtures, it is by retinol1 2-13 parts, vitamin K 8-10 parts, vitamin D 6-8
Part, vitamin C 5-7 parts, vitamin B23-5 parts, vitamin E 3-5 parts, inositol 3-5 parts, vitamin B123-5 parts.
Further, described wall material, be gelatin, sodium alginate, xanthans, according to mass ratio 2.3-2.5:0.5-0.8:1-
1.4 mix.
Further, described cray micro-encapsulated diet, including following preparation process：
1) silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, analysis for soybean powder mixing, ultramicro grinding, 60-65 DEG C of frying 20-
30min, 0.7-1.0 times of clear water mixing is added, obtains material 1, be inoculated with 10-13% leavening, 30-37 DEG C of fermentation 24-27h, must send out
Ferment material；
2) fermentation material and mixture, composite ore material, vitamin mixtures, pomelo peel, soybean lecithin, fish oil, chlorination courage
Alkali, sodium dihydrogen phosphate mixing, obtain material 2；
3) wall material is immersed in water, 50-60 DEG C of heating 30-40min, 20-25 DEG C of standing 50-60min, is added material 2 and is carried out
Homogenization, obtain material 3；
4) material 3 is spray-dried, sieved, both must be packed.
Further, described leavening is according to mass ratio by streptococcus lactis, lactobacillus and Bifidobacterium freeze-dried powder
0.8-1.0:0.5-0.7:1.5-2 is mixed, and the living bacteria count bacterium of each of which bacterium is all higher than 2.0 hundred million/g.
Further, described homogeneous, homogenization cycles are 3-4 times.
Further, described spray drying, EAT are 180-200 DEG C, and leaving air temp is 75-78 DEG C, compressed air
Pressure is 1.5-1.7MPa, and shower nozzle atomizer rotating speed is 17000-17900r/min, charging rate 40-50r/min, and charging is dense
Spend for 27-29%.
Beneficial effect, the present invention adds special mixture by special raw material proportioning, due to special mixture
Be raw material is mixed, stepwise fermentation, freeze and be made after centrifugation, form more aroma substance, while also cause raw material
In nutriment utilized, add the fragrance of micro-encapsulated diet, improve cray feeding urges, so as to add production
Amount.
In addition, the present invention utilizes Mixed Microbes to silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, soya bean powder mixture
Fermented, form more small peptide fragment nutritional ingredients, more conducively cray absorbs.Selection for wall material, use are compound
Wall material so that its form of its manufactured microcapsule granule is uniform, and coating is complete, is up to 70.2% to the embedding rate of lipid, simultaneously
So that drug effect is sustained, ensure that stability of the micro-encapsulated diet in water, while it is beneficial to suction of the cray to nutriment
Digestion is received, have found suitable equalization point between digestibility and wall material dosage.So that forage feed prepared by the present invention
Cray, under identical feeding conditions, per mu yield is up to 201.2kg/ mus, single cabrage 49.7g.
Further study show that the feed prepared using the present invention raises cray, cray yield can be not only improved
And the amino acid content of cray can be increased, amino acid content is up to 17.23%, it is necessary to which amino acid content is up to
6.89%.Why delicious shrimps are, contains that abundant Fresh ear field is relevant with it, the delicious tastes of shrimps be by Glu, Asp,
What the content of 4 kinds of amino acid such as Gly and A1a determined, wherein Glu delicate flavour is most strong, is secondly Asp, and Gly and A1a are in sweet
The amino acids characteristic of taste, the cray of feed cultivation of the present invention, Fresh ear field content are up to 6.83%, greatly improved
The meat quality of cray.
Embodiment
The embodiment of the present invention is described in further detail below, but the invention is not limited in these realities
Mode is applied, any improvement or replacement on the present embodiment essence spirit, it is claimed to still fall within the claims in the present invention
Scope.
Embodiment 1
A kind of cray micro-encapsulated diet, including following mass parts raw material：It is silkworm chrysalis 60g, fish meal 50g, mealy potato 40g, white
Splendid achnatherum powder 40g, wheat embryo 20g, analysis for soybean powder 20g, mixture 10g, composite ore material 10g, vitamin mixtures 10g, pomelo peel
10g, soybean lecithin 10g, fish oil 10g, Choline Chloride 6g, sodium dihydrogen phosphate 5g, wall material 5g.
Described mixture, be by earthworm, rhizoma Gastrodiae, violet cabbage, cockroach, egg, marine alga according to etc. mass mixing, powder
It is broken, 2 times of quality clear water are added, obtain compound, add cellulase, 1.3% saccharomycete of 0.8% mixture quality, 17 DEG C of hairs
Ferment 17h, 30 DEG C of closing fermentations 20h, 50 DEG C, 300r/min stirring 2h, 8000rpm centrifugation 30min, take supernatant, supernatant with-
Precooling 40min at 10 DEG C, the ethanol of 1/2 times of supernatant quality is added after defrosting, 70r/min stirring 20min, freezes, obtains powder
1, powder 1 is subjected to ultramicro grinding and both obtained.
Described composite ore material, it is by sodium chloride 20g, monohydrate zinc sulphate 5g, manganese sulfate monohydrate 5g, epsom salt
3g, calcium chloride 2g, pearl powder 3g, bentonite 3g are mixed.
Described vitamin mixtures, it is by retinol1 2g, vitamin K 8g, vitamin D 6g, vitamin C 5g, dimension life
Plain B23g, vitamin E 3g, inositol 3g, vitamin B123g。
Described wall material, be gelatin, sodium alginate, xanthans, according to mass ratio 2.3:0.5:1 mixes.
Described cray micro-encapsulated diet, including following preparation process：
1) silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, analysis for soybean powder mixing, ultramicro grinding, 60 DEG C of frying 20min,
0.7 times of clear water mixing is added, obtains material 1,10% leavening is inoculated with, 30 DEG C of fermentation 24h, obtains fermentation material；
2) fermentation material and mixture, composite ore material, vitamin mixtures, pomelo peel, soybean lecithin, fish oil, chlorination courage
Alkali, sodium dihydrogen phosphate mixing, obtain material 2；
3) wall material is immersed in water, 50 DEG C of heating 30min, 20 DEG C of standing 50min, is added material 2 and is carried out homogenization, must expect
3；
4) material 3 is spray-dried, sieved, both must be packed.
Further, described leavening is according to mass ratio by streptococcus lactis, lactobacillus and Bifidobacterium freeze-dried powder
0.8:0.5:1.5 mix, and the living bacteria count bacterium of each of which bacterium is all higher than 2.0 hundred million/g.
Described homogeneous, homogenization cycles are 3 times.
Described spray drying, EAT are 180 DEG C, and leaving air temp is 75 DEG C, and compressed air pressure is 1.5MPa, spray
Head atomizer rotating speed is 17000r/min, charging rate 40r/min, input concentration 27%.
Embodiment 2
A kind of cray micro-encapsulated diet, including following mass parts raw material：It is silkworm chrysalis 65g, fish meal 55g, mealy potato 42g, white
Splendid achnatherum powder 42g, wheat embryo 25g, analysis for soybean powder 25g, mixture 15g, composite ore material 13g, vitamin mixtures 12g, pomelo peel
13g, soybean lecithin 12g, fish oil 12g, Choline Chloride 7g, sodium dihydrogen phosphate 6g, wall material 6g.
Described mixture, be by earthworm, rhizoma Gastrodiae, violet cabbage, cockroach, egg, marine alga according to etc. mass mixing, powder
It is broken, 2.3 times of quality clear water are added, obtain compound, add cellulase, 1.5% saccharomycete of 1.0% mixture quality, 18 DEG C
Ferment 19h, 32 DEG C of closing fermentation 22h, 55 DEG C, 350r/min stirring 2.3h, 9000rpm centrifugation 35min, takes supernatant, supernatant
Liquid and precooling 45min at -12 DEG C, the ethanol of 1/2 times of supernatant quality is added after defrosting, 78r/min stirring 25min, freezes, obtains
Powder 1, powder 1 is subjected to ultramicro grinding and both obtained.
Described composite ore material, it is by sodium chloride 23g, monohydrate zinc sulphate 7g, manganese sulfate monohydrate 6g, epsom salt
5g, calcium chloride 4g, pearl powder 4g, bentonite 4g are mixed.
Described vitamin mixtures, it is by retinol1 3g, vitamin K 9g, vitamin D 7g, vitamin C 6g, dimension life
Plain B24g, vitamin E 4g, inositol 4g, vitamin B124g。
Described wall material, be gelatin, sodium alginate, xanthans, according to mass ratio 2.4:0.7:1.2 mix.
Described cray micro-encapsulated diet, including following preparation process：
1) silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, analysis for soybean powder mixing, ultramicro grinding, 62 DEG C of frying 25min,
0.8 times of clear water mixing is added, obtains material 1,11% leavening is inoculated with, 33 DEG C of fermentation 25h, obtains fermentation material；
2) fermentation material and mixture, composite ore material, vitamin mixtures, pomelo peel, soybean lecithin, fish oil, chlorination courage
Alkali, sodium dihydrogen phosphate mixing, obtain material 2；
3) wall material is immersed in water, 55 DEG C of heating 35min, 22 DEG C of standing 55min, is added material 2 and is carried out homogenization, must expect
3；
4) material 3 is spray-dried, sieved, both must be packed.
Described leavening is according to mass ratio 0.8 by streptococcus lactis, lactobacillus and Bifidobacterium freeze-dried powder:0.5:
1.5 mix, and the living bacteria count bacterium of each of which bacterium is all higher than 2.0 hundred million/g.
Described homogeneous, homogenization cycles are 4 times.
Described spray drying, EAT are 180 DEG C, and leaving air temp is 75 DEG C, and compressed air pressure is 1.5MPa, spray
Head atomizer rotating speed is 17000r/min, charging rate 40r/min, input concentration 27%.
Embodiment 3
A kind of cray micro-encapsulated diet, including following mass parts raw material：It is silkworm chrysalis 70g, fish meal 60g, mealy potato 45g, white
Splendid achnatherum powder 45g, wheat embryo 30g, analysis for soybean powder 30g, mixture 20g, composite ore material 20g, vitamin mixtures 15g, pomelo peel
15g, soybean lecithin 13g, fish oil 15g, Choline Chloride 8g, sodium dihydrogen phosphate 7g, wall material 8g.
Described mixture, be by earthworm, rhizoma Gastrodiae, violet cabbage, cockroach, egg, marine alga according to etc. mass mixing, powder
It is broken, 3 times of quality clear water are added, obtain compound, add cellulase, 1.7% saccharomycete of 1.2% mixture quality, 20 DEG C of hairs
Ferment 20h, 33 DEG C of closing fermentation 24h, 60 DEG C, 400r/min stirring 3h, 10000rpm centrifugation 40min, takes supernatant, supernatant
With precooling 50min at -15 DEG C, the ethanol of 3/4 times of supernatant quality is added after defrosting, 100r/min stirring 30min, freezes, obtains
Powder 1, powder 1 is subjected to ultramicro grinding and both obtained.
Described composite ore material, it is by sodium chloride 25g, monohydrate zinc sulphate 8g, manganese sulfate monohydrate 7g, epsom salt
6g, calcium chloride 5g, pearl powder 5g, bentonite 5g are mixed.
Described vitamin mixtures, it is by retinol1 3g, vitamin K1 0g, vitamin D 8g, vitamin C 7g, dimension life
Plain B25g, vitamin E 5g, inositol 5g, vitamin B125g。
Described wall material, be gelatin, sodium alginate, xanthans, according to mass ratio 2.5:0.8:1.4 mix.
Described cray micro-encapsulated diet, including following preparation process：
1) silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, analysis for soybean powder mixing, ultramicro grinding, 65 DEG C of frying 30min,
1.0 times of clear water mixing are added, obtain material 1,13% leavening is inoculated with, 37 DEG C of fermentation 27h, obtains fermentation material；
2) fermentation material and mixture, composite ore material, vitamin mixtures, pomelo peel, soybean lecithin, fish oil, chlorination courage
Alkali, sodium dihydrogen phosphate mixing, obtain material 2；
3) wall material is immersed in water, 60 DEG C of heating 40min, 25 DEG C of standing 60min, is added material 2 and is carried out homogenization, must expect
3；
4) material 3 is spray-dried, sieved, both must be packed.
Described leavening is according to mass ratio 1.0 by streptococcus lactis, lactobacillus and Bifidobacterium freeze-dried powder:0.7:2
Mix, the living bacteria count bacterium of each of which bacterium is all higher than 2.0 hundred million/g.
Described homogeneous, homogenization cycles are 4 times.
Described spray drying, EAT are 200 DEG C, and leaving air temp is 78 DEG C, and compressed air pressure is 1.7MPa, spray
Head atomizer rotating speed is 17900r/min, charging rate 50r/min, input concentration 29%.
Embodiment 4
The difference of embodiment 4 and embodiment 1 is that embodiment 4 is free of mixture, other identical with when preparation method.
Embodiment 5
The difference of embodiment 5 and embodiment 1 is, the mixture described in embodiment 5, is to add water to cook raw material both to obtain.
Embodiment 6
The difference of embodiment 6 and embodiment 1 is that the leavening used in embodiment 6 is streptococcus lactis, lactobacillus and bifid
One kind in bacillus, other preparation methods are identical.
Embodiment 7
The difference with embodiment 1 of embodiment 7 is that wall material is single wall material used by embodiment 7, as gelatin,
One kind in sodium alginate, xanthans.
Experimental example
1st, cray cultivation situation
Cray feed is prepared according to embodiment 1-7 method, while according to application number CN201410332301.4《It is a kind of
Cray feed and preparation method thereof》The method of announcement prepares feed as a control group, and cray is cultivated with 8 groups of feeds.
Rearing conditions：Pond selection close to the exit or entrance of a clitch, have abundant water resources, water quality is good, it is pollution-free and enter that draining is convenient, bottom of pond
Flat place, experiment pool mouth is 1 mu, and mu puts 0.9 ten thousand tail shrimp seedlings, 25kg per mu, rearing conditions in addition to feed is different, its
Remaining operation all same, raising calculate the yield of each experimental group after terminating, choose 1000 crays at random and calculate each tail
Weight, as a result as shown in table 1.
The cray of table 1 grows situation statistics
| Embodiment | Average weight g/ tails | Per mu yield kg/ mus |
| Embodiment 1 | 49.7 | 201.2 |
| Embodiment 2 | 48.2 | 192.3 |
| Embodiment 3 | 49.1 | 198.9 |
| Embodiment 4 | 44.8 | 169.3 |
| Embodiment 5 | 44.5 | 156.2 |
| Embodiment 6 | 40.9 | 157.4 |
| Embodiment 7 | 45.3 | 155.6 |
| Control group | 40.5 | 152.6 |
As it can be seen from table 1 it is of the invention by special raw material proportioning, and special mixture is added, due to special
Mixture be raw material is mixed, stepwise fermentation, after centrifugation freeze be made, form more aroma substance, while also make
The nutriment obtained in raw material is utilized, and is added the fragrance of micro-encapsulated diet, is improved cray feeding urges, so as to increase
Yield is added.
In addition, the present invention utilizes Mixed Microbes to silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, soya bean powder mixture
Fermented, form more small peptide fragment nutritional ingredients, more conducively cray absorbs.Selection for wall material, use are compound
Wall material so that its form of its manufactured microcapsule granule is uniform, and coating is complete, is up to 70.2% to the embedding rate of lipid, simultaneously
So that drug effect is sustained, ensure that stability of the micro-encapsulated diet in water, while it is beneficial to suction of the cray to nutriment
Digestion is received, have found suitable equalization point between digestibility and wall material dosage.So that forage feed prepared by the present invention
Cray, under identical feeding conditions, per mu yield is up to 201.2kg/ mus, single cabrage 49.7g.
2nd, cray nutritional ingredient detects
According to document report method (Tian Juan, perhaps skilful feelings, Tian Luo, wait Dongting Lake Procambius clarkiis muscular components analyze and
Quality characteristic analyzes [J] aquatile journals, 2017,41 (4):870-877.), field headquarters is entered to the cray of 8 groups of feed cultivation
Composition detection is supported, as a result as shown in table 2.
The cray nutrient composition content % of table 2
As shown in Table 2, cray is raised using the feed for preparing of the present invention, can not only improves cray yield but also can
To increase the amino acid content of cray, amino acid content is up to 17.23%, it is necessary to which amino acid content is up to 6.89%.Shrimps
It is why delicious, contain that abundant Fresh ear field is relevant with it, the delicious taste of shrimps is by Glu, Asp, Gly and A1a etc. 4
What the content of kind amino acid determined, wherein Glu delicate flavour is most strong, is secondly Asp, and Gly and A1a are the characteristic ammonia in sugariness
Base acid, the cray of feed cultivation of the present invention, Fresh ear field content are up to 6.83%, greatly improve the meat of cray
Quality.
Claims (10)
1. a kind of cray micro-encapsulated diet, it is characterised in that including following mass parts raw material：Silkworm chrysalis 10-80 parts, fish meal 20-
60 parts, mealy potato 20-60 parts, bletilla striata powder 10-50 parts, wheat embryo 10-40 parts, analysis for soybean powder 10-40 parts, mixture 5-30 parts,
Composite ore material 5-30 parts, vitamin mixtures 5-30 parts, pomelo peel 1-15 parts, soybean lecithin 1-20 parts, fish oil 1-20 parts, chlorine
Change choline 1-10 parts, sodium dihydrogen phosphate 1-10 parts, wall material 1-10 parts.
2. cray micro-encapsulated diet as claimed in claim 1, it is characterised in that described cray micro-encapsulated diet, bag
Include following mass parts raw material：Silkworm chrysalis 60-70 parts, fish meal 50-60 parts, mealy potato 40-45 parts, bletilla striata powder 40-45 parts, wheat embryo
20-30 parts, analysis for soybean powder 20-30 parts, mixture 10-20 parts, composite ore material 10-20 parts, vitamin mixtures 10-15 parts, shaddock
Sub- skin 10-15 parts, soybean lecithin 10-13 parts, fish oil 10-15 parts, Choline Chloride 6-8 parts, sodium dihydrogen phosphate 5-7 parts, wall material 5-8
Part.
3. cray micro-encapsulated diet as claimed in claim 1, it is characterised in that described mixture, be by earthworm, day
Fiber crops, violet cabbage, cockroach, egg, marine alga according to etc. mass mixing, crush, add 2-3 times of quality clear water, obtain compound, add
Cellulase, the 1.3-1.7% saccharomycete of 0.8-1.2% mixture qualities, 17-20 DEG C of fermentation 17-20h, 30-33 DEG C of closing hair
Ferment 20-24h, 50-60 DEG C, 300-400r/min stirring 2-3h, 8000-10000rpm centrifugation 30-40min, takes supernatant, supernatant
Liquid and precooling 40-50min at -10~15 DEG C, add the ethanol of 1/2-3/4 times of supernatant quality after defrosting, 70-100r/min is stirred
20-30min is mixed, freezes, obtains powder 1, powder 1 is carried out into ultramicro grinding had both obtained.
4. cray micro-encapsulated diet as claimed in claim 1, it is characterised in that described composite ore material, be by chlorination
Sodium 20-25 parts, monohydrate zinc sulphate 5-8 parts, manganese sulfate monohydrate 5-7 parts, epsom salt 3-6 parts, calcium chloride 2-5 parts, pearl powder
3-5 parts, bentonite 3-5 parts mix.
5. cray micro-encapsulated diet as claimed in claim 1, it is characterised in that described vitamin mixtures, be to tie up
Raw plain A12-13 parts, vitamin K 8-10 parts, vitamin D 6-8 parts, vitamin C 5-7 parts, vitamin B23-5 parts, vitamin E 3-5
Part, inositol 3-5 parts, vitamin B123-5 parts.
6. cray micro-encapsulated diet as claimed in claim 1, it is characterised in that described wall material, be gelatin, alginic acid
Sodium, xanthans, according to mass ratio 2.3-2.5:0.5-0.8:1-1.4 mix.
7. cray micro-encapsulated diet as claimed in claim 1, it is characterised in that described cray micro-encapsulated diet, bag
Include following preparation process：
1) silkworm chrysalis, fish meal, mealy potato, bletilla striata powder, wheat embryo, analysis for soybean powder mixing, ultramicro grinding, 60-65 DEG C of frying 20-
30min, 0.7-1.0 times of clear water mixing is added, obtains material 1, be inoculated with 10-13% leavening, 30-37 DEG C of fermentation 24-27h, must send out
Ferment material；
2) fermentation material and mixture, composite ore material, vitamin mixtures, pomelo peel, soybean lecithin, fish oil, Choline Chloride, phosphorus
Acid dihydride sodium mixes, and obtains material 2；
3) wall material is immersed in water, 50-60 DEG C of heating 30-40min, 20-25 DEG C of standing 50-60min, is added material 2 and is carried out homogeneous
Processing, obtains material 3；
4) material 3 is spray-dried, sieved, both must be packed.
8. cray micro-encapsulated diet as claimed in claim 7, it is characterised in that described leavening be by streptococcus lactis,
Lactobacillus and Bifidobacterium freeze-dried powder are according to mass ratio 0.8-1.0:0.5-0.7:1.5-2 is mixed, each of which bacterium
Living bacteria count bacterium be all higher than 2.0 hundred million/g.
9. cray micro-encapsulated diet as claimed in claim 7, it is characterised in that described homogeneous, homogenization cycles 3-4
It is secondary.
10. cray micro-encapsulated diet as claimed in claim 7, it is characterised in that described spray drying, EAT are
180-200 DEG C, leaving air temp is 75-78 DEG C, and compressed air pressure is 1.5-1.7MPa, and shower nozzle atomizer rotating speed is 17000-
17900r/min, charging rate 40-50r/min, input concentration 27-29%.
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