CN108813209A - A kind of little yellow croaker young stage feed and preparation method thereof - Google Patents
A kind of little yellow croaker young stage feed and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of little yellow croaker scrod swelling feeds and preparation method thereof, wherein expanded pellet diet is specific to feed formula made of little yellow croaker, whole nutrient demands needed for can satisfy the development of little yellow croaker juvenile growth, not only nutritional ingredient is comprehensively balanced and environmentally protective；Mash feed is mainly sent into bulking machine by preparation method, grain section is cut into again after mixing, quenched, heating, pressurization, extrusion, most afterwards through the bulk porous pellet of one kind obtained by the processes such as drying, stabilization.It proves that feed of the present invention can significantly improve little yellow croaker rate of body weight gain and survival rate by culture experiment, improves sero-immunity index, increase little yellow croaker premunition.Test is compared with other fish juvenile fish special feeds and feed of the present invention respectively using with juvenile fish obtained by a collection of nursery by under same environment, the rate of body weight gain and survival rate of cultivated little yellow croaker are respectively 55%, 60% and 75%, 78.7% respectively, improve 20% or so.
Description
Technical field
The present invention relates to a kind of little yellow croaker young stage feeds and preparation method thereof, belong to agriculture mariculture technology field.
Background technique
Little yellow croakerLarimichthys polyactis, it is commonly called as small fresh, yellow croaker etc., is under the jurisdiction of Perciformes
Perciformes, Sciaenidae Sciaenidae, yellow croaker belong to Nibea, be distributed widely in China's the East China Sea and the Yellow Sea and the Bohai Sea and
Korea peninsula west bank sea area.Once with Larimichthys croceaLarimichthys crocea, cuttlefishSepiella maindronAnd hairtailTrichiurus japonicasIt and referred to as China " four big marine products ", is the important marine products economic fish in China.Little yellow croaker meat
Delicate delicious, nutritive value is high, is loved by consumers.However, due to the influence of the factors such as overfishing and environmental degradation, it is small
Yellow croaker resource steps into decline, slump of disastrous proportions phase after the seventies, and little yellow croaker yield is sharply reduced.With from the nineties in the East Sea
Area implements summer colse season, and little yellow croaker resource quantity is restored, and yield obviously rises in recent years.But it captures at present small
The resources decays such as the shortening of age composition sequence is still presented in yellow croaker group, sexal maturity shifts to an earlier date, individual smalltype.
In order to supplement fishing off season market supply, reduce dependence, the promotion resource reparation to fishing, people have been actively developed
Turn down the research of yellow croaker cultural technique.Zhejiang Prov. Inst. of Marine Products has also put into this research, they captured in 2014
Living body little yellow croaker, and successfully carried out artificial breeding in 2015, after in 2016 cultivated second filial seed, and 2017
Year successfully cultivates child three generations seed, realizes the full artificial breeding of little yellow croaker, and obtain the important breakthrough of propagation in scale.It is small
The success of the full artificial breeding of yellow croaker promotes cultivation for little yellow croaker seed and has established solid foundation.
It is even more to need specific aim that the difference of fish species, which needs to feed its bad adaptability of different feeds, especially young stage,
Feed.But currently without little yellow croaker special compound feed, other marine fish feeds can only be used to replace in little yellow croaker breeding process
In generation, a series of adverse effects are especially generated, mainly little yellow croaker survival rate is low, rate of body weight gain is low etc..Unit is cultivated according to part
It is measured, little yellow croaker survival rate, rate of body weight gain are respectively in 60% and 55%.In addition, little yellow croaker feed is slowly, and generally will not
It eats and sinks to water-bed feed, therefore the overwhelming margin of feeding volume and food-intake will occur, lead to fish hypoalimentation and water quality quilt
Serious the phenomenon that destroying.Therefore warp is realized to promote little yellow croaker industrialization process for the special compound feed of little yellow croaker exploitation
The harmonious development of Ji, society and ecological benefits is urgently needed for current little yellow croaker cultivation field.
Summary of the invention
In view of the above deficiencies, the technical problem to be solved by the present invention is to need in the nutrition for determining little yellow croaker juvenile fish
Ask, on the basis of feature of ingesting and digestive characteristic, design both nutritional ingredient comprehensively and equilibrium to can satisfy little yellow croaker juvenile fish raw
Stability is good in water again for whole nutritional needs needed for long development, do not settle, environmentally protective specifically for little yellow croaker
Feed, to provide a kind of little yellow croaker young stage feed and preparation method thereof.
The technical solution adopted by the present invention is that：A kind of little yellow croaker scrod swelling feed, by the raw material system of following parts by weight
At：20-28 parts of fish meal, 6-13 parts of fly maggot powder, 4-11 parts of black soldier flies powder, 8-15 parts of dregs of beans, 8-14 parts of Gluten, flour
15-20 parts, 1-6 parts of fish oil, 1-6 parts of soya-bean oil, 0.3-1.7 parts of soybean lecithin, 0.2-0.7 part of multidimensional premix, more mines
0.1-0.6 part of premix, 0.1-0.6 part of choline chloride, 0.3-0.7 part of calcium dihydrogen phosphate, arginase 12 .3-3.0 part are multiple
Close 0.1-0.5 part of immunopotentiator, 4-9 parts of rice bran.
In this feed formula in addition to conventional nutrients, it is added to fly maggot powder and black soldier flies powder, this avoid single next
Daily ration amino acid imbalance problem caused by the insect powder of source, so as to improve the utilization rate of feed protein.In addition it is added to
Functional amino, i.e. arginine and composite immune reinforcing agent, wherein fish body antioxygenic property can be enhanced in arginine, promotees
Into protein synthesis, immune cell propagation, and composite immune reinforcing agent can enhance the infection ability that fish body resists bacterium and virus.
The two collocation uses, it is intended to reach the ability for improving little yellow croaker growth performance and resisting disease by the interaction of the two.
As a further alternative, a kind of little yellow croaker scrod swelling feed, by the raw material system of following parts by weight
At：22-26 parts of fish meal, 8-12 parts of fly maggot powder, 6-10 parts of black soldier flies powder, 10-13 parts of dregs of beans, 9-12 parts of Gluten, face
17-19 parts of powder, 2-5 parts of fish oil, 2-5 parts of soya-bean oil, 0.5-1.5 parts of soybean lecithin, 0.3-0.5 part of multidimensional premix is more
0.2-0.4 part of mine premix, 0.2-0.4 part of choline chloride, 0.4-0.6 part of calcium dihydrogen phosphate, arginase 12 .5-2.9 part,
0.2-0.4 part of composite immune reinforcing agent, 5-8 parts of rice bran.
As most preferred scheme, a kind of little yellow croaker scrod swelling feed, by the raw material system of following parts by weight
At：24 parts of fish meal, 10 parts of fly maggot powder, 8 parts of black soldier flies powder, 12 parts of dregs of beans, 11 parts of Gluten, 18 parts of flour, 2.6 parts of fish oil,
2.6 parts of soya-bean oil, 1 part of soybean lecithin, 0.4 part of multidimensional premix, 0.3 part of more mine premixes, 0.3 part of choline chloride, di(2-ethylhexyl)phosphate
0.5 part of hydrogen calcium .75 parts of arginase 12,0.3 part of composite immune reinforcing agent, 6.25 parts of rice bran.
The composite immune reinforcing agent be one of bacillus subtilis, beta glucan, immune peptide or multiple combinations,
The arginine is crystal arginine.
The multidimensional premix contains the following ingredient of following mg amount based on every kg feed：Vitamine A acetate 26, dimension
Raw element D3 3.5, vitamin K 4.0, vitamin E 100, vitamin B1 20, vitamin B2 25, vitamin B6 15, vitamin
B12 0.05, niacin 150, folic acid 15, biotin 1.2, inositol 700, vitamin C 600.
More mine premixes contain the following ingredient of following mg amount based on every kg feed：Epsom salt 1500, seven water
Ferrous sulfate 120, white vitriol 70, manganese sulfate monohydrate 30, CoCL2 6H2O 1.5, sodium selenite 0.2, potassium iodide
0.5, cupric sulfate pentahydrate 5, sodium chloride 70.
A kind of preparation method of little yellow croaker scrod swelling feed, includes the following steps：
（1）Solid feed raw material is crushed with pulverizer, and crushed feed is all crossed into 80 meshes；
（2）All feedstuffs are weighed by formula rate, and are mixed according to widened principle step by step, incorporation time
In half an hour or more；
（3）Mixed raw material is first sent into blender to add water and stir, be then fed into microwave modulating device carry out it is quenched, then lead to
Extrusion, granulation are crossed, finally sprays fish oil and/or soya-bean oil in particle surface, it is the granular puffed of 2-3mm that diameter, which is made,
Feed；Wherein enter extrusion when temperature of charge at 90-95 DEG C；
（4）The feed drying that will be made, is fitted into sealed bag, is stored in -20 DEG C for use.
The step（4）Moisture in Feed content after middle drying controls below 7%.
Temperature is 95 DEG C when carrying out quenched in the microwave modulating device, conditioning period 6min.
Temperature is 140-170 DEG C before the extrusion exports.
The present invention provides a kind of little yellow croaker scrod swelling feeds and preparation method thereof.
Wherein little yellow croaker scrod swelling feed is specific to feed formula made of little yellow croaker, can satisfy little yellow croaker children
Fish whole nutrient demands needed for growth and development, not only nutritional ingredient is comprehensively balanced and environmentally protective.Feed of the present invention
In other than conventional constituents, also added new protein sources-fly maggot powder and black soldier flies powder, mixing is added to both insect powders,
It can be to avoid daily ration amino acid imbalance problem caused by single source insect powder, so as to improve the utilization of feed protein
Rate.In addition this feed formula also added composite immune reinforcing agent, and be added to functional amino（Arginine）, compound to exempt from
The infection ability that fish body resists bacterium and virus can be enhanced in epidemic disease reinforcing agent, and functional amino is not only aquatic livestock maintenance
Necessary to normal growth, and be also to the synthesis of various bioactivators it is required, arginine can be enhanced anti-oxidant
Performance promotes protein synthesis, immune cell propagation.This feed formula makes immunopotentiator and functional amino collocation
With, can be reached by the interaction of the two improve little yellow croaker growth performance and resist disease ability.
Wherein mash feed is mainly sent into bulking machine by the preparation method of little yellow croaker scrod swelling feed, by primary
Continuous mixing, quenched, heating, pressurization, extrusion die hole, decompression is then cut into grain section suddenly, most afterwards through processes such as drying, stabilizations
The obtained bulk porous pellet of one kind.Due to pass through high temperature high pressure process, starch gelatinization more sufficiently, protein group
Knitting is more thorough, and feed digestion utilization rate improves, bait throwing in is easy to control, stability is good in water.In addition, this feed formula
Middle all solids feedstuff all required 80 meshes after crushing, and nutritive digestibility in feed is made to reach optimum degree.
Feed of the present invention is designed as expanded pellet diet, and the ratio of food-intake and feeding volume not only can be improved, can also be in time
Extra feed is pulled out in time, in order to avoid destroy water quality.
It proves that feed of the present invention can significantly improve little yellow croaker rate of body weight gain and survival rate by culture experiment, improves serum and exempt from
Epidemic disease index increases little yellow croaker premunition.Use other fishs young respectively using with juvenile fish obtained by a collection of nursery by under same environment
Fish special feed and feed of the present invention compare test, and the rate of body weight gain and survival rate of cultivated little yellow croaker are respectively 55%, 60% respectively
With 75%, 78.7%, 20% or so is improved.
Specific embodiment
In July, 2017 prepares mixed feed.Test site is dodged in Zhejiang Prov. Inst. of Marine Products west 8-October in 2017
The culture efficiency evaluation test of little yellow croaker scrod swelling feed is carried out, little yellow croaker juvenile fish produces from the parent population that test site is cultivated
Ovum, hatching gained.
One, feed formula
Embodiment 1
Feed formula group becomes（It is 1000g calculating with raw material total amount）：Peru fish meal（Containing crude protein 78.3%, crude fat 7.5%,
Ningbo Tianbang Co., Ltd produces）220g, fly maggot powder（Containing crude protein 67.04%, the prosperous peptide bioprotein share in Guangzhou is limited
Company produces）90g, black soldier flies powder（Containing crude protein 42.1%, fat 34.8%, the clean nurse environmental protection science and technology limited Company in Xi'an）
70g, dregs of beans（Containing crude protein 54.2%, crude fat 1.02%, Ningbo Tianbang Co., Ltd produces）100g, Gluten（Containing thick
Albumen 86.7%, crude fat 0.78%, Ningbo Tianbang Co., Ltd produce）100g, flour（Containing crude protein 15.8%, fat
0.91%）170g, fish oil（Containing EPA>7%, DHA>13%, peroxide value<10meq/kg, Weihai Ai Ersi marine organisms science and technology are limited
Company produces）23g, soya-bean oil 23g, soybean lecithin 6g, multidimensional premix 3g, more mine premix 2g, choline chloride 2g, phosphoric acid
Calcium dihydrogen 4g, arginase 12 5g, composite immune reinforcing agent（Bacillus subtilis+beta-glucan+immune peptide）2g, rice bran 160g.
The feed nutrition group made becomes：Moisture, 5.0%；Crude protein, 39.7%；Crude fat, 9.3%；Coarse ash
8.03%。
Embodiment 2
Feed formula group becomes（It is calculated with 1000g）：Peru fish meal crude protein（78.3%, crude fat 7.5%, Ningbo day nation share
Co., Ltd）240g, fly maggot powder（Crude protein, 67.04%, Guangzhou Xintai Biological Albumen Co., Ltd.）100g, black soldier flies powder
（Crude protein, 42.1%, fat 34.8%, the clean nurse environmental protection science and technology limited Company in Xi'an）80g, dregs of beans（Crude protein 54.2%, slightly
Fat 1.02%, Ningbo Tianbang Co., Ltd）120g, Gluten（Crude protein 86.7%, crude fat 0.78%, Ningbo day nation stock
Part Co., Ltd）110g, flour（Crude protein 15.8%, fat 0.91%）180g, fish oil（EPA>7%,DHA>13%, peroxidating
Value<10meq/kg, Weihai Ai Ersi marine organisms Science and Technology Ltd.）26g, soya-bean oil 26g, soybean lecithin 10g, multidimensional are pre-
Mixing 4g, more mine premix 3g, choline chloride 3g, calcium dihydrogen phosphate 5g, arginase 12 7.5g, composite immune reinforcing agent（Withered grass bud
Spore bacillus+beta-glucan+immune peptide）3g, rice bran 62.5g.
The feed nutrition group made becomes：Moisture, 3.9%；Crude protein, 44.8%；Crude fat, 10.7%；Coarse ash 8.6%
Embodiment 3
Feed formula group becomes（It is calculated with 1000g）：Peru fish meal（78.3%, crude fat 7.5%, the Ningbo day limited public affairs of nation's share
Department）250g, fly maggot powder（Crude protein, 67.04%, Guangzhou Xintai Biological Albumen Co., Ltd.）105g, black soldier flies powder（Thick egg
It is white, 42.1%, fat 34.8%, the clean nurse environmental protection science and technology limited Company in Xi'an）85g, dregs of beans（Crude protein 54.2%, crude fat
1.02% Ningbo Tianbang Co., Ltd）125g, Gluten（Crude protein 86.7%, crude fat 0.78%, Ningbo day nation share have
Limit company）115g, flour（Crude protein 15.8%, fat 0.91%）185g, fish oil（EPA>7%,DHA>13%, peroxide value<
10meq/kg, Weihai Ai Ersi marine organisms Science and Technology Ltd.）30g, soya-bean oil 30g, soybean lecithin 20g, multidimensional premix
5g, more mine premix 4g, choline chloride 4g, calcium dihydrogen phosphate 6g, arginine 30g, composite immune reinforcing agent（Beta-glucan+
A3 α-peptide glycan）4g, rice bran 2g.
The feed nutrition group made becomes：Moisture, 4.5%；Crude protein, 47.2%；Crude fat, 11.2%；Coarse ash 8.9%
Two preparation methods
Solid feed raw material is crushed with pulverizer, and crushed feed is all crossed into 80 meshes；All feeds raw material is pressed
The ratio of feed formula is weighed, and is mixed according to widened principle step by step, and incorporation time is in half an hour or more；It will mix
It closes sufficient raw material and is put into blender and add water and stir, then make temperature of charge close to 95 DEG C with microwave modulation 6min or so, pass through
Twin-screw extruder is tested to machine the mixing pelletized, by one-time continuous, quenched, heating, pressurization, squeeze out die hole, be depressured suddenly
It is then cut into grain section, the expanded pellet diet that diameter is 2mm and 3mm is made in oil spout after grain forming；The feed drying machine that will be made
Drying（Moisture is generally below 7%）It is fitted into sealed bag, it is stand-by to be stored in -20 DEG C of refrigerators.
Three culture experiments
Using the little yellow croaker juvenile fish of 10.0 ± 0.02g as experimental subjects.Little yellow croaker juvenile fish indoors temporarily support two weeks by cement pit.Just
It before formula culture experiment, selects that specification is close, the weighing of juvenile fish of bouncing, is put at random into 300-L Glass fibre reinforced plastic tubs, every barrel
20 tail juvenile fish, 3 repetitions of each processing.It feeds feed formula example 1,2,3 respectively and Larimichthys crocea juvenile fish special feed carries out pair
Than test, each example formulations are all provided with control group and test group, and control group, which is fed, does not add arginine and composite immune reinforcing agent
Group, test group are to feed addition arginine and composite immune reinforcing agent group.Continuous aeration in each test bucket, to keep enough
Dissolved oxygen.It feeds twice daily（The morning 07：00, afternoon 16：00）.2/3 water is updated daily.During entire cultivation, temperature is protected
It holds at 26 ± 2 DEG C, pH is 7.8-8.0, and salinity is 28 ‰-29 ‰.Dissolved oxygen is controlled in 6mg/L or more, and ammonia-nitrogen content is less than
0.02mg/L.Culture-cycle is 8 weeks, and test result shows：The little yellow croaker juvenile fish survival rate of test group is most in feed formula example 2
A height of 78.7%, rate of body weight gain is up to 75%, feed coefficient 1.79, serum lysozyme level 190U/ml, control group little yellow croaker juvenile fish
Survival rate is that 72% rate of body weight gain is 65%, feed coefficient 1.92, serum lysozyme level 174U/ml；1 pilot scale of feed formula example
The little yellow croaker juvenile fish survival rate for testing group is up to 70.4%, rate of body weight gain 63%, feed coefficient 1.97, serum lysozyme level
140U/ml, control group little yellow croaker juvenile fish survival rate are 62%, rate of body weight gain 60%, feed coefficient 2.10, serum lysozyme level
135U/ml；The little yellow croaker juvenile fish survival rate of test group is 64.2% in feed formula example 3, rate of body weight gain 60%, feed coefficient
1.94, serum lysozyme level 125U/ml, control group little yellow croaker juvenile fish survival rate are 61%, rate of body weight gain 57%, feed coefficient
2.15, serum lysozyme level 120U/ml.The little yellow croaker juvenile fish survival rate of other fish juvenile fish special feed test groups is
60%, rate of body weight gain 55%, feed coefficient 1.93, serum lysozyme level 115U/ml.
Claims (10)
1. a kind of little yellow croaker scrod swelling feed, it is characterized in that being prepared from the following raw materials in parts by weight：20-28 parts of fish meal, fly
6-13 parts of maggot powder, 4-11 parts of black soldier flies powder, 8-15 parts of dregs of beans, 8-14 parts of Gluten, 15-20 parts of flour, fish oil 1-6
Part, 1-6 parts of soya-bean oil, 0.3-1.7 parts of soybean lecithin, 0.2-0.7 part of multidimensional premix, more 0.1-0.6 parts of mine premix,
0.1-0.6 part of choline chloride, 0.3-0.7 part of calcium dihydrogen phosphate, arginase 12 .3-3.0 part, composite immune reinforcing agent
0.1-0.5 part, 4-9 parts of rice bran.
2. little yellow croaker scrod swelling feed as described in claim 1, it is characterized in that being prepared from the following raw materials in parts by weight：Fish
22-26 parts of powder, 8-12 parts of fly maggot powder, 6-10 parts of black soldier flies powder, 10-13 parts of dregs of beans, 9-12 parts of Gluten, flour 17-
19 parts, 2-5 parts of fish oil, 2-5 parts of soya-bean oil, 0.5-1.5 parts of soybean lecithin, 0.3-0.5 part of multidimensional premix, more mine premixs
0.2-0.4 part of material, 0.2-0.4 part of choline chloride, 0.4-0.6 part of calcium dihydrogen phosphate, arginase 12 .5-2.9 part are compound to exempt from
0.2-0.4 part of epidemic disease reinforcing agent, 5-8 parts of rice bran.
3. little yellow croaker scrod swelling feed as claimed in claim 2, it is characterized in that a kind of little yellow croaker scrod swelling is raised
Material, is prepared from the following raw materials in parts by weight：24 parts of fish meal, 10 parts of fly maggot powder, 8 parts of black soldier flies powder, 12 parts of dregs of beans, Gluten
11 parts, 18 parts of flour, 2.6 parts of fish oil, 2.6 parts of soya-bean oil, 1 part of soybean lecithin, 0.4 part of multidimensional premix, more mine premixes
0.3 part, 0.3 part of choline chloride, 0.5 part of calcium dihydrogen phosphate .75 parts of arginase 12,0.3 part of composite immune reinforcing agent, rice bran 6.25
Part.
4. the little yellow croaker scrod swelling feed as described in claims 1 or 2 or 3, it is characterized in that the composite immune reinforcing agent
For one of bacillus subtilis, beta glucan, immune peptide or multiple combinations, the arginine is crystal arginine.
5. the little yellow croaker scrod swelling feed as described in claims 1 or 2 or 3, it is characterized in that every kg is pressed in the multidimensional premix
Feed meter contains the following ingredient of following mg amount：Vitamine A acetate 26, vitamine D3 3.5, vitamin K 4.0, vitamin
E 100, vitamin B1 20, vitamin B2 25, vitamin B6 15, vitamin B12 0.05, niacin 150, folic acid 15 are raw
Object element 1.2, inositol 700, vitamin C 600.
6. the little yellow croaker scrod swelling feed as described in claims 1 or 2 or 3, it is characterized in that every kg is pressed in more mine premixes
Feed meter contains the following ingredient of following mg amount：Epsom salt 1500, ferrous sulfate heptahydrate 120, white vitriol 70,
Manganese sulfate monohydrate 30, CoCL2 6H2O 1.5, sodium selenite 0.2, potassium iodide 0.5, cupric sulfate pentahydrate 5, sodium chloride 70.
7. the preparation method of the little yellow croaker scrod swelling feed as described in claims 1 or 2 or 3, it is characterized in that including following step
Suddenly：
（1）Solid feed raw material is crushed with pulverizer, and crushed feed is all crossed into 80 meshes；
（2）All feedstuffs are weighed by formula rate, and are mixed according to widened principle step by step, incorporation time
In half an hour or more；
（3）Mixed raw material is first sent into blender to add water and stir, be then fed into microwave modulating device carry out it is quenched, then lead to
Extrusion, granulation are crossed, finally sprays fish oil and/or soya-bean oil in particle surface, it is the granular puffed of 2-3mm that diameter, which is made,
Feed；Wherein enter extrusion when temperature of charge at 90-95 DEG C；
（4）The feed drying that will be made, is fitted into sealed bag, is stored in -20 DEG C for use.
8. the preparation method of little yellow croaker scrod swelling feed as claimed in claim 7, it is characterized in that the step（4）Middle baking
Moisture in Feed content after dry controls below 7%.
9. the preparation method of little yellow croaker scrod swelling feed as claimed in claim 7, it is characterized in that the microwave modulating device
It is middle carry out it is quenched when temperature be 95 DEG C, conditioning period 6min.
10. the preparation method of little yellow croaker scrod swelling feed as claimed in claim 7, it is characterized in that the extrusion exports
Preceding temperature is 140-170 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998158A (en) * | 2021-03-19 | 2021-06-22 | 象山港湾水产苗种有限公司 | Wet feed for improving reproductive performance of parent fish of little yellow croaker and feeding method |
| CN114271409A (en) * | 2021-12-15 | 2022-04-05 | 福建天马科技集团股份有限公司 | Breeding feed for large yellow croaker fries and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998158A (en) * | 2021-03-19 | 2021-06-22 | 象山港湾水产苗种有限公司 | Wet feed for improving reproductive performance of parent fish of little yellow croaker and feeding method |
| CN112998158B (en) * | 2021-03-19 | 2024-02-06 | 象山港湾水产苗种有限公司 | Wet feed for improving reproductive performance of parent fish of small yellow croaker and feeding method |
| CN114271409A (en) * | 2021-12-15 | 2022-04-05 | 福建天马科技集团股份有限公司 | Breeding feed for large yellow croaker fries and preparation method thereof |
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