CN103431192A - Special feeding accelerant for Penaeus vannamei, and preparation method thereof - Google Patents
Special feeding accelerant for Penaeus vannamei, and preparation method thereof Download PDFInfo
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- CN103431192A CN103431192A CN2013103060584A CN201310306058A CN103431192A CN 103431192 A CN103431192 A CN 103431192A CN 2013103060584 A CN2013103060584 A CN 2013103060584A CN 201310306058 A CN201310306058 A CN 201310306058A CN 103431192 A CN103431192 A CN 103431192A
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Abstract
The invention relates to a feed additive, and especially relates to a special feeding accelerant for Penaeus vannamei. The special feeding accelerant for Penaeus vannamei comprises protein hydrolysates, amino acid compounds, sulfur-containing compounds, alkaloids and nucleotides. The special feeding accelerant for Penaeus vannamei has the following advantages: 1, the culture benefit is improved, and the effect is substantial; 2, environmental protection and water waste reduction are realized, so the water pollution is reduced, and the nitrogen discharge is reduced; 3, the special feeding accelerant is beneficial for the health of prawns, enhances the liver functions of the Penaeus vannamei, improves the digestion absorption capability, improves the feed utilization efficiency, improves the body osmotic pressure adjusting adaptation and promotes the healthy growth of the prawns; 4, the special feeding accelerant can be conveniently used and popularized; and 5, the special feeding accelerant is safe and has a low cost.
Description
Technical field
The present invention relates to feed addictive, relate in particular to a kind of promoter of ingesting of Penaeus Vannmei special use.
Background technology
Penaeus Vannmei (Penaeus vannamei), claim again white pin prawn, Penaeus Vannmei, belong to Arthropoda, Crustachia, Decapoda, the swimming suborder, Penaeidae, Penaeus, its fine and tender taste, the meat flavour deliciousness, occupy critical positions in alive bound pair shrimp aquaculture industry, with Chinese prawn, Penaeus monodon is listed as the three large economic shrimps that on our times, cultured area is maximum, output is the highest.In recent years, the shrimp culture industry development is rapidly. and turn to the high density intensive culture by traditional naturally putting in a suitable place to breed, the demand of aquatic feed is constantly soaring, and a large amount of intensive farms is almost entirely by artitificial food.
Promoter being exactly of ingesting of Penaeus Vannmei special use can attract Penaeus Vannmei around feed and cause prawn appetite and promote it to complete the material of the feed process of eating.The promoter of ingesting has following functions: the vegetable protein that (1) can make Penaeus Vannmei utilize better not like food etc., take full advantage of existing resource, and alleviate animal protein food resource situation in short supply.(2) save feed, reduce costs, improve efficiency of feed utilization, be conducive to keep good water quality simultaneously, add the feed of the promoter of ingesting, Penaeus Vannmei falls over each other to rob food, ingest time shortens, and improves grazing rate, can save feed cost, improve feed digestibility in vivo simultaneously, can reduce feed coefficient.(3) it is the optimal food derivant of opening of larvae of Penaeus vannamei, impels the young early to open food and ingests more, obviously improves survival rate.(4) the dispensing diseases prevention is the difficult problem in culture of Penaeus vannamei, adds after the promoter of ingesting the prawn pharmaceutical chemistry of ingesting smoothly.
Summary of the invention
Given this, the invention provides that a kind of effect is remarkable, cheap, the promoter of ingesting of steady sources, Penaeus Vannmei special use easy to use.
The present invention achieves the above object by following scheme:
A kind of promoter of ingesting of Penaeus Vannmei special use comprises following component: protein zymolyte, amino acid complex, sulfur-containing compound, alkaloid and nucleotides.
Preferably, a kind of promoter of ingesting of Penaeus Vannmei special use, in air dry matter amount percentage, comprise following component: 30%-50% protein zymolyte, 14%-26% amino acid complex, 8%-12% sulfur-containing compound, 15%-25% alkaloid and 8%-10% nucleotides.
Further preferred, a kind of promoter of ingesting of Penaeus Vannmei special use, in air dry matter amount percentage, comprises following component: 40% protein zymolyte, 20% amino acid complex, 10% sulfur-containing compound, 20% alkaloid and 10% nucleotides.
Wherein, above-mentioned amino acid complex is one or more in taurine or glycine or glutamic acid; Above-mentioned sulfur-containing compound is dimethyl-β-DMPT or allicin or their mixture; Above-mentioned alkaloid is betaine or trimethylamine hydrochloride or their mixture; Above-mentioned nucleotides is inosinicacid or inosinic acid or their mixture.
Preferably; a kind of promoter of ingesting of Penaeus Vannmei special use, in air dry matter amount percentage, comprises following component: 30-50% protein zymolyte, 8-12% taurine, 3-7% glycine; 3-7% glutamic acid, 8-12% dimethyl-β-DMPT, 15-25% betaine, 8-10% inosinicacid.
Further preferred; a kind of promoter of ingesting of Penaeus Vannmei special use; in air dry matter amount percentage, comprise following component: 40% protein zymolyte, 10% taurine, 5% glycine, 5% glutamic acid, 10% dimethyl-β-DMPT, 20% betaine, 10% inosinicacid.
Wherein, by percentage to the quality, above-mentioned protein zymolyte is to take 30% krill meal, 30% earthworm, 20% cuttlefish internal organ, 20% yeast through the protease hydrolyzed preparation, to obtain as raw material.
0.5%-2% is added in the above-mentioned promoter suggestion of ingesting in feed amount according to mass percent is used.
A kind of method for preparing the promoter of ingesting of above-mentioned Penaeus Vannmei special use, after comprising the raw material components of the described promoter of ingesting being mixed according to aforementioned proportion, then get final product through ultramicro grinding, and wherein, the preparation of described protein zymolyte comprises the following steps:
(1) will add water through the raw material components of the protein zymolyte of ultramicro grinding, stir by colloid mill mixing homogeneous;
(2) add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin, pancreatin and flavor protease, stir, isothermal reaction, temperature is the 50-55 degree, the time is 240-360 minute; Second segment enzymolysis papain, temperature is the 55-60 degree, the time is 180-240 minute;
(4) rising temperature, to the 95-97 degree, is reacted 20-30 minute;
(5) spray-drying and get final product.
Further, the preparation of above-mentioned protein zymolyte comprises the following steps:
(1) will add water through the raw material components of the protein zymolyte of ultramicro grinding, wherein the mass ratio of raw material components and water is 1:3, stirs by colloid mill mixing homogeneous;
(2) add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin, pancreatin and flavor protease, their mass ratio is 2:4:1, enzyme (E) is 0.3:100 with the mass ratio of substrate (S), stir, isothermal reaction, temperature is the 50-55 degree, and the time is 240-360 minute; Second segment enzymolysis papain, enzyme (E) is 0.2:100 with the mass ratio of substrate (S), and temperature is the 55-60 degree, and the time is 180-240 minute; Every liter of enzyme liquid activity is 10 million international units;
(4) rising temperature, to the 95-97 degree, is reacted 20-30 minute;
(5) spray-drying, the shower nozzle rotating speed is 15000-18000 rpm, intake air temperature 200-220 degree, air outlet temperature 90-110 degree, negative pressure 100mp.
Beneficial effect of the present invention is:
1) improve culture benefit, effect is remarkable: in the promoter of ingesting due to Penaeus Vannmei special use of the present invention, added protein zymolyte, be rich in active small peptide, free amino acid, short-chain fat, glucan, manna oligosacchride, astaxanthin, nucleotides, cholesterol etc., except promoting that Penaeus Vannmei is ingested, can also strengthen prawn immunity of organism premunition, improve survival rate, thereby improve culture benefit, effect is remarkable;
2) environmental protection: added the multiple food calling active ingredients such as ispol in the promoter of ingesting due to Penaeus Vannmei special use of the present invention, our experiments show that, can effectively improve the Penaeus Vannmei efficiency of ingesting, reduce the waste in water, thereby the minimizing water pollution makes amino acid in feed balance more simultaneously, more meets the amino acid nutrient demand of Penaeus Vannmei, effectively promote prawn to synthesize the body protein of self, reduced the discharge of nitrogen;
3) be conducive to prawn health: in the promoter of ingesting due to Penaeus Vannmei special use of the present invention, added nucleotides and alkaloid, except promotion is ingested, can also strengthen Penaeus Vannmei liver function, improve abilities of digestive and absorption, improve food utilization efficiency, improve the adaptive faculty that body osmotic pressure is regulated, promote the healthy growth of prawn;
4) easy to use: the addition of the present invention in penaeus vannamei boone feed is only 0.5-2%, directly before feed granulating, add or before the finished product siccative is used, add the water spice also can, easy to use, be convenient to promote;
5) safety, cost is low: due to the equal steady sources of raw material used in the present invention, cheap, meet national feed addictive Application standard, nontoxic, have no side effect, can not produce harmful effect to nutritive value and the food security of Penaeus Vannmei.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further described.
Embodiment 1
The preparation of ingesting promoter:
1) prepare protein zymolyte:
The raw material of 30% krill meal, 30% earthworm, 20% cuttlefish internal organ, 20% yeast is by mass percentage mixed and crosses 200 mesh sieves through ultramicro grinding, and (mass ratio is raw material components: after water=1:3) stirring through colloid mill mixing homogeneous 2 times to add water; Add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin/pancreatin/flavor protease (mass ratio is 2:4:1), enzyme (E) is 0.3:100 with the mass ratio of substrate (S), stirs isothermal reaction, temperature is 52 degree, and the time is 240 minutes; Second segment enzymolysis papain, enzyme (E) is 0.2:100 with the mass ratio of substrate (S), and temperature is 56 degree, and the time is 240 minutes; Then the temperature that raises reaches 95 degree, isothermal reaction 20 minutes; Last spray-drying, the shower nozzle rotating speed is 18000 rpms, intake air temperature 210 degree, air outlet temperature 100 degree, negative pressure 100mpa, obtain protein zymolyte.
2) prepare the promoter of ingesting
In air dry matter amount percentage, the promoter of ingesting of the present embodiment comprises following component: 40% protein zymolyte, 10% taurine, 5% glycine, 5% glutamic acid, 10% dimethyl-β-DMPT, 20% betaine, 10% inosinicacid.After the above-mentioned raw materials component is mixed in proportion to (coefficient of variation is less than 5%), then cross through ultramicro grinding the promoter of ingesting that 150 eye mesh screens obtain the Penaeus Vannmei special use of the present embodiment.
Compliance test result:
The control group feed is comprised of the following component in air dry matter amount percentage: 30% fish meal, 23% dregs of beans, 3% shrimp shell meal, 10% peanut press pulp, 4% cotton dregs, the 4% dish dregs of rice, 20% wheat flour, 1% fish oil, 1% soya-bean oil, 1% soybean lecithin oil, 1% calcium dihydrogen phosphate, 2% all the other additives.
In sluice gate cultivation base, Zhuhai, Guangdong, experimental group for adding the promoter of ingesting of the present embodiment of 1% in the control group feed according to mass percent, carry out contrast test with control group feed (not adding the promoter of ingesting), raise the Penaeus Vannmei that just starting weight is 0.27 gram (3 mu, every mouthful of pool, every mu of 50,000 tails, experimental group and control group be totally 8 mouthfuls of pools, 1,200,000 tails) 70 days.Result shows, with control group, compare, adopt the experimental group of the Penaeus Vannmei of the feed that adds the present embodiment, every day, food ration increased by 20%, Feeding Velocity obviously speeds, feed coefficient (1.02) is more lower slightly than control group (1.09), and protein efficiency ratio, PER (2.18) is than control group (2.05) height, and the specification of identical number of days (70 days) prawn reaches the every tail of average weight 15.6 gram (contrast is 14.8 grams).Because the large selling price of specification exceeds 0.5 yuan of shrimp per jin, total culture benefit is earned 90 yuan than every mu of control group more.
Embodiment 2
The preparation of ingesting promoter:
1) prepare protein zymolyte:
The raw material components of 30% krill meal by percentage to the quality, 30% earthworm, 20% cuttlefish internal organ, 20% yeast is mixed after ultramicro grinding is crossed 200 mesh sieves, and (mass ratio is raw material components: after water=1:3) stirring through colloid mill mixing homogeneous 2 times to add water; Add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin/pancreatin/flavor protease (mass ratio is 2:4:1), enzyme (E) is 0.3:100 with the mass ratio of substrate (S), stirs isothermal reaction, temperature is 53 degree, and the time is 300 minutes; Second segment enzymolysis papain, enzyme (E) is 0.2:100 with the mass ratio of substrate (S), and temperature is 57 degree, and the time is 200 minutes; , the temperature that then raises reaches 96 degree, isothermal reaction 20 minutes; Last spray-drying, the shower nozzle rotating speed is 17000 rpms, intake air temperature 210 degree, air outlet temperature 100 degree, negative pressure 100mpa, obtain protein zymolyte.
2) prepare the promoter of ingesting:
In air dry matter amount percentage, the promoter of ingesting of the present embodiment comprises following component: 42% protein zymolyte, 11% taurine, 4% glycine, 4% glutamic acid, 10% dimethyl-β-DMPT, 19% betaine, 10% inosinicacid.After the above-mentioned raw materials component is proportionally mixed, then cross through ultramicro grinding the promoter of ingesting that 150 eye mesh screens can obtain the Penaeus Vannmei special use of this embodiment.
Effect test:
The control group feed is served as reasons in the following component composition of air dry matter amount percentage: 30% fish meal, 23% dregs of beans, 3% shrimp shell meal, 10% peanut press pulp, 4% cotton dregs, the 4% dish dregs of rice, 20% wheat flour, 1% fish oil, 1% soya-bean oil, 1% soybean lecithin oil, 1% calcium dihydrogen phosphate, 2% all the other additives.
In the Xiaoshan, Zhejiang cultivation base, experimental group for adding the promoter of ingesting of the present embodiment of 1.1% in the control group feed according to mass percent, carry out contrast test with control group feed (not adding the promoter of ingesting), raise the Penaeus Vannmei that just starting weight is 0.36 gram (4 mu, every mouthful of pool, every mu of 50,000 tails, experimental group and control group be totally 8 mouthfuls of pools, 1,600,000 tails) 74 days.Result shows, with control group, compare, adopt the experimental group of the Penaeus Vannmei that adds the present embodiment feed, every day, food ration increased by 20%, Feeding Velocity obviously speeds, feed coefficient (1.04) is more lower slightly than control group (1.11), and protein efficiency ratio, PER (2.28) is than control group (2.15) height, and the specification of identical number of days (74 days) prawn reaches the every tail of average weight 15.9 gram (control group is 14.7 grams).Because the large selling price of specification exceeds 0.5 yuan of shrimp per jin, total culture benefit is earned 100 yuan than every mu of control group more.
Embodiment 3
The preparation of ingesting promoter:
1) prepare protein zymolyte:
The raw material components of 30% krill meal by percentage to the quality, 30% earthworm, 20% cuttlefish internal organ, 20% yeast is mixed and crosses 200 mesh sieves through ultramicro grinding and obtain mixture, and (mass ratio is raw material components: after water=1:3) stirring through colloid mill mixing homogeneous 2 times to add water; Add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin/pancreatin/flavor protease (mass ratio is 2:4:1), enzyme (E) is 0.3:100 with the mass ratio of substrate (S), stirs isothermal reaction, temperature is 51 degree, and the time is 310 minutes; Second segment enzymolysis papain, enzyme (E) is 0.2:100 with the mass ratio of substrate (S), and temperature is 58 degree, and the time is 220 minutes; Then the temperature that raises reaches 96 degree, isothermal reaction 23 minutes; Last spray-drying, the shower nozzle rotating speed is 18000 rpms, intake air temperature 220 degree, air outlet temperature 102 degree, negative pressure 100mpa, obtain protein zymolyte.
2) prepare the promoter of ingesting:
In air dry matter amount percentage, the promoter of ingesting of the present embodiment comprises following component: 49% protein zymolyte, 10% taurine, 4% glycine, 4% glutamic acid, 10% dimethyl-β-DMPT, 12% betaine, 11% inosinicacid.After mixing (coefficient of variation is less than 5%) according to the above-mentioned raw materials component ratio, again through ultramicro grinding (crossing 150 eye mesh screens), can obtain the promoter of ingesting of the Penaeus Vannmei special use of this embodiment.
Effect test:
The control group feed is served as reasons in the following component composition of air dry matter amount percentage: 30% fish meal, 23% dregs of beans, 3% shrimp shell meal, 10% peanut press pulp, 4% cotton dregs, the 4% dish dregs of rice, 20% wheat flour, 1% fish oil, 1% soya-bean oil, 1% soybean lecithin oil, 1% calcium dihydrogen phosphate, 2% all the other additives.
In the Wenchang, hainan cultivation base, experimental group for adding the promoter of ingesting of the present embodiment of 1.2% in the control group feed according to mass percent, carry out contrast test with control group feed (not adding the promoter of ingesting), raise the Penaeus Vannmei that just starting weight is 0.42 gram (5 mu, every mouthful of pool, every mu of 60,000 tails, experimental group and control group be totally 10 mouthfuls of pools, 3,000,000 tails) 68 days.Result shows, with control group, compare, adopt the experimental group of the Penaeus Vannmei that adds the present embodiment feed, survival rate (96.2%) is higher by 14% than control group (84.2%), every day, food ration increased by 20%, and Feeding Velocity obviously speeds, and feed coefficient (1.09) is even also lower slightly than control group (1.10), protein efficiency ratio, PER (2.34) is than control group (2.25) height, and the specification of identical number of days (68 days) prawn reaches the every tail of average weight 17.3 gram (control group only has 16.8 grams).Because feed cost is more per ton than 54 yuan of control group reductions, the large selling price of specification exceeds 0.45 yuan of shrimp per jin, and total culture benefit is earned 110 yuan than every mu of control group more.
Embodiment 4
In air dry matter amount percentage, the promoter of ingesting of the present embodiment comprises following component: 30% protein zymolyte, 12% taurine, 7% glycine, 6% glutamic acid, 12% dimethyl-β-DMPT, 25% betaine, 8% inosinicacid.After the above-mentioned raw materials component is mixed in proportion to (coefficient of variation is less than 5%), then cross through ultramicro grinding the promoter of ingesting that 150 eye mesh screens obtain the Penaeus Vannmei special use of the present embodiment.
Embodiment 5
In air dry matter amount percentage, the promoter of ingesting of the present embodiment comprises following component: 50% protein zymolyte, 8% taurine, 3% glycine, 3% glutamic acid, 8% dimethyl-β-DMPT, 19% betaine, 9% inosinicacid.After the above-mentioned raw materials component is mixed in proportion to (coefficient of variation is less than 5%), then cross through ultramicro grinding the promoter of ingesting that 150 eye mesh screens obtain the Penaeus Vannmei special use of the present embodiment.
The above; it is only preferably specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or changed according to technical scheme of the present invention and design thereof, all should be encompassed in protection scope of the present invention.
Claims (10)
1. the promoter of ingesting of a Penaeus Vannmei special use, is characterized in that, comprises following component: protein zymolyte, amino acid complex, sulfur-containing compound, alkaloid and nucleotides.
2. the promoter of ingesting of a kind of Penaeus Vannmei special use as claimed in claim 1, it is characterized in that, in air dry matter amount percentage, comprise following component: 30%-50% protein zymolyte, 14%-26% amino acid complex, 8%-12% sulfur-containing compound, 15%-25% alkaloid and 8%-10% nucleotides.
3. the promoter of ingesting of a kind of Penaeus Vannmei special use as claimed in claim 2, it is characterized in that, in air dry matter amount percentage, comprise following component: 40% protein zymolyte, 20% amino acid complex, 10% sulfur-containing compound, 20% alkaloid and 10% nucleotides.
4. as the promoter of ingesting of the described a kind of Penaeus Vannmei special use of arbitrary claim in claim 1-3, it is characterized in that, described amino acid complex is one or more in taurine or glycine or glutamic acid; Described sulfur-containing compound is dimethyl-β-DMPT or allicin or their mixture; Described alkaloid is betaine or trimethylamine hydrochloride or their mixture; Described nucleotides is inosinicacid or inosinic acid or their mixture.
5. the promoter of ingesting of a kind of Penaeus Vannmei special use as claimed in claim 4; it is characterized in that; in air dry matter amount percentage; comprise following component: 30-50% protein zymolyte, 8-12% taurine, 3-7% glycine; 3-7% glutamic acid, 8-12% dimethyl-β-DMPT, 15-25% betaine, 8-10% inosinicacid.
6. the promoter of ingesting of a kind of Penaeus Vannmei special use as claimed in claim 5; it is characterized in that; in air dry matter amount percentage, comprise following component: 40% protein zymolyte, 10% taurine, 5% glycine, 5% glutamic acid, 10% dimethyl-β-DMPT, 20% betaine, 10% inosinicacid.
7. as the promoter of ingesting of the described a kind of Penaeus Vannmei special use of arbitrary claim in claim 1-3 and 5-6, it is characterized in that, by percentage to the quality, described protein zymolyte is to take 30% krill meal, 30% earthworm, 20% cuttlefish internal organ, 20% yeast through the protease hydrolyzed preparation, to obtain as raw material.
8. the application as the promoter of ingesting of the described a kind of Penaeus Vannmei special use of arbitrary claim in claim 1-7, is characterized in that, the described promoter of ingesting is added 0.5%-2% in feed according to mass percent.
9. the method prepared as the promoter of ingesting of the described Penaeus Vannmei special use of arbitrary claim in claim 1-7, it is characterized in that, after comprising the raw material components of the described promoter of ingesting being mixed according to aforementioned proportion, through ultramicro grinding, get final product again, wherein, the preparation of described protein zymolyte comprises the following steps:
(1) will add water through the raw material components of the protein zymolyte of ultramicro grinding, stir by colloid mill mixing homogeneous;
(2) add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin, pancreatin, flavor protease, stir, isothermal reaction, temperature is the 50-55 degree, the time is 240-360 minute; Second segment enzymolysis papain, temperature is the 55-60 degree, the time is 180-240 minute;
(3) rising temperature, to the 95-97 degree, is reacted 20-30 minute;
(4) spray-drying and get final product.
10. a method for preparing the promoter of ingesting of Penaeus Vannmei special use as claimed in claim 9, is characterized in that, the preparation of described protein zymolyte comprises the following steps:
(1) will add water through the raw material components of the protein zymolyte of ultramicro grinding, wherein the mass ratio of raw material components and water is 1:3, stirs by colloid mill mixing homogeneous;
(2) add the compound protease subsection enzymolysis: first paragraph enzymolysis compound use pepsin, pancreatin, flavor protease, their mass ratio is 2:4:1, the mass ratio of enzyme-to-substrate is 0.3:100, stir, isothermal reaction, temperature is the 50-55 degree, the time is 240-360 minute; Second segment enzymolysis papain, the mass ratio of enzyme-to-substrate is 0.2:100, and temperature is the 55-60 degree, and the time is 180-240 minute; Every liter of enzyme liquid activity is 10 million international units;
(3) rising temperature, to the 95-97 degree, is reacted 20-30 minute;
(4) spray-drying, the shower nozzle rotating speed is 15000-18000 rpm, intake air temperature 200-220 degree, air outlet temperature 90-110 degree, negative pressure 100mp.
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| CN104206822A (en) * | 2014-08-08 | 2014-12-17 | 广东海大集团股份有限公司 | Efficient compound attractant growth promoting additive and preparation and application thereof |
| CN104431523A (en) * | 2014-12-10 | 2015-03-25 | 苏州埃瑞特生物技术有限公司 | Preparation method of special nutrient powder for penaeus vannamei boone |
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| CN103989022B (en) * | 2014-06-09 | 2016-02-24 | 中山大学 | A kind of hybridized snakehead fish phagostimulant specially and preparation method thereof |
| CN104206822A (en) * | 2014-08-08 | 2014-12-17 | 广东海大集团股份有限公司 | Efficient compound attractant growth promoting additive and preparation and application thereof |
| CN104431523A (en) * | 2014-12-10 | 2015-03-25 | 苏州埃瑞特生物技术有限公司 | Preparation method of special nutrient powder for penaeus vannamei boone |
| CN104472957A (en) * | 2014-12-31 | 2015-04-01 | 广西南宁桂知科技有限公司 | Composite type freshwater fish phagostimulant |
| CN104920896A (en) * | 2015-06-29 | 2015-09-23 | 溧阳正昌饲料科技有限公司 | Novel aquatic product feeding attractant and preparation method thereof |
| CN105231095A (en) * | 2015-11-06 | 2016-01-13 | 中国水产科学研究院淡水渔业研究中心 | Composite phagostimulant for juvenile freshwater shrimps, preparation method of composite phagostimulant and freshwater shrimp compound feed |
| CN105639187A (en) * | 2015-12-30 | 2016-06-08 | 大连海洋大学 | Feeding promoting agent for sea urchin Strongylocentrotus intermedius and preparation method thereof |
| CN107996886A (en) * | 2017-12-14 | 2018-05-08 | 柳州市柳科科技有限公司 | A kind of prawn high protein feed and preparation method thereof |
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