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58results about How to "Increase specific growth rate" patented technology

Bacillus licheniformis and feed additive comprising same

The invention relates to the technical field of functional microbiological screening and provides novel Bacillus licheniformis DN29 which is collected under CCTCC NO: M2015482. The Bacillus licheniformis DN29 obtained by screening can effectively inhibit pathogenic bacteria such as Vibrio splendidus and pseudoalteromonas, can reduce disease probability of bred animals and can serve as a feed additive to remarkably increase feed utilization rate of the bred animals and promote growing of the animals. The Bacillus licheniformis DN29 can serve as a probiotic to be applied in the process of rearing and producing Stichopus japonicus, has remarkable promoting effect on growing of Stichopus japonicus and can effectively improve immunity of and resistance, to Vibrio splendidus, of Stichopus japonicus.
Owner:青岛玛斯特生物技术有限公司 +1

Screening of Bacillus amyloliquefaciens and application thereof in Apostichopus japonicas culture

The invention relates to the technical field of screening and application of functional microorganisms in particular to screening of Bacillus amyloliquefaciens and application thereof in Apostichopus japonicas culture. The Bacillus amyloliquefaciens is collected on 24th December, 2015 in China Center for Type Culture Collection, abbreviated as CCTCC with the address: Wuchang Luojiashan Wuhan University Collection Center, Wuhan, Hubei, is claimed by Ludong University under CCTCC No. M2015774 and is named as Bacillus amyloliquefaciens ZYTC1-1. The Bacillus amyloliquefaciens is screened from healthy intestines of Apostichopus japonicas, has great ability to produce protease and amylase, can improve the activity of amylase in the testiness of Apostichopus japonicas, promote growth of Apostichopus japonicas and improve immunity and disease resistance of Apostichopus japonicas, and is widely applicable to the field of Apostichopus japonicas culture and aquatic feeds.
Owner:LUDONG UNIVERSITY

Special feed for juvenile alligator snapping turtle

The invention discloses special feed for a juvenile alligator snapping turtle, which comprises the following components in percentage by weight: 49 percent-70 percent of fish meal, 8 percent-30 percent of bean pulp and / or meat and bone meal, 9.8 percent-23.2 percent of starch, 0.2 percent-4.7 percent of fish oil, 0 percent-6 percent of monocalcium phosphate, 0.5 percent-1 percent of vitamin, 1 percent-2 percent of mineral substance and 0.1 percent-0.3 percent of choline chloride. In the invention, the special feed for the juvenile alligator snapping turtle has the advantages of excellent raw materials and scientific nutrition preparation and can ensure that the raw materials are completely ingested by the juvenile alligator snapping turtle without generating aquaculture pollution caused by waste feed, wherein the crude protein is more than or equal to 45 percent, the crude fat is more than or equal to 6 percent, the water content is less than or equal to 10 percent, and the floating time is up to 8-10 hours; after the part of fish meal is replaced by the bean pulp and / or the meat and bone meal, the survival ratio of the alligator snapping turtle is not influenced, but various indexes, such as terminal weight, specific growth ratio, weight growth ratio and the like are obviously improved, and the production cost is greatly reduced.
Owner:GUANGZHOU XIANBU AGRI TECH

High-efficiency enteromorpha additive aquatic feed formula

The invention belongs to the technical field of marine fish (mullet) bait research and development, relates to a treatment method and a component proportion of high-efficiency marine algae enteromorpha for baits, and aims at using enteromorpha as a new feed resource for development and application and applying the enteromorpha as a low-input high-output algae feed in the breeding industry. The marine green tide algae enteromorpha serving as a high-efficiency feed additive comprises the following components: 300g of fish meal, 300g of soybean meal, 70g of whole wheat flour, 50g of yeast, 50mL of maize germ oil, 15g of soybean lecithin, 5g of sodium alginate, 1g of cellulase, 50000IU of vitamin A, 4000IU of vitamin D, 100mg of vitamin E, 50mg of vitamin B1, 50mg of vitamin B2, 5mg of vitamin B6, 10mu g of vitamin B12, 150mg of nicotinamide, 50mg of calcium pantothenate, 500mg of choline bitartrate, 500mg of vitamin C, 100mg of iron, 10mg of copper, 5mg of zinc, 10mg of magnesium, 1mg of iodine, 10mg of manganese, 100mg of potassium, 5580mg of calcium hydrophosphate, and 250mg of L-lysiante, wherein the enteromorpha is added according to a gradient. A feeding attraction activity test is carried out by detecting the rate of live weight growth of mullet, a specific growth rate and a bait coefficient, and the best feed enteromorpha gradient is finally determined. According to the invention, the enteromorpha serving as a low-cost high-efficiency feed additive can be quickly applied in the breeding industry.
Owner:SHANDONG UNIV AT WEIHAI

Mid-stage compound feed for cyprinus carpio and producing method of mid-stage compound feed

The invention relates to mid-stage compound feed for cyprinus carpio and a producing method of the mid-stage compound feed. The mid-stage compound feed comprises the ingredients of fish meal, soybean meal, flour, silkworm chrysalis, rape seed cake, peanut kernel cake, casing powder, corn germ cake, corn protein powder, rice bran, wheat germ, monocalcium phosphate, bentonite, fat, salt, compound betaine, choline chloride, fish multi-vitamin premixed material, fish multi-mineral mixed material and feed-grade compound amino acid. The producing method comprises the steps of firstly mixing the raw materials, and pelletizing after smashing the raw materials for twice. The mid-stage compound feed disclosed by the invention is capable of increasing the immunity of the cyprinus carpio and promoting the growth development, is high in nutrition, good in palatability and can be easily digested and absorbed; after the use of the mid-stage compound feed, the cyprinus carpio is balanced in growth, bright in color, high in premonition, low in morbidity, strong in anti-stress capacity and low in feed coefficient, the feed cost is reduced, and the promotion value is very good.
Owner:HENAN UNIV OF ANIMAL HUSBANDRY & ECONOMY

Microecological preparation for improving growth performance of pampus argenteus juvenile fish and application of microecological preparation

The invention relates to a microecological preparation applicable to pampus argenteus juvenile fish and application of the microecological preparation, and belongs to the technology of seawater fish type feed additive application. The invention aims at selecting probiotics applicable to the pampus argenteus juvenile fish for thus improving the growth performance of the pampus argenteus juvenile fish. By comparing and analyzing the safety and the beneficial function of bacillus subtilis, lactobacillus plantarum and clostridium butyricum, the condition that the bacillus subtilis does not have any harm to the pampus argenteus juvenile fish and has the best beneficial effect is found. The growth performance and the immunologic function of the pampus argenteus juvenile fish are obviously improved by the bacillus subtilis, so that the microecological preparation is recommended to be used in artificial culture of pampus argenteus.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Preparation and application of Lactobacillus gasseri with aquatic pathogenic bacterium antagonism

The invention discloses preparation and application of Lactobacillus gasseri with aquatic pathogenic bacterium antagonism, and belongs to the technical field of microorganisms. A Lactobacillus gasseristrain 88 is obtained by screening and classified and named as Lactobacillus gasseri, and the former name is Lactobacillus gasseri. The strain can grow in culture pond water and bottom mud, and has the broad spectrum antagonism on various aquatic common pathogenic bacteria in freshwater culture. Due to culture activation, fermentation cultivation and preparation, powder and water are prepared, COD, ammonia nitrogen, nitrite, total phosphorus and total nitrogen in water can be effectively degraded due to cooperative use of the powder and the water, and growth of aquatic culture animals is promoted. The obtained Lactobacillus gasseri preparation is adopted as a water improver for aquaculture so that the content of contaminations in water can be effectively lowered, and the culture water quality is improved; when the strain is adopted as a fishery culture feed additive, the aquatic animal weight gain rate and the specific growth rate and aquatic animals can be remarkably increased, and the feed coefficient is remarkably lowered.
Owner:江苏省苏微微生物研究有限公司

Bacillus coagulans having aquatic pathogen antagonistic characteristic and application of bacillus coagulans

The invention discloses bacillus coagulans having an aquatic pathogen antagonistic characteristic and application of the bacillus coagulans, and belongs to the technical field of microorganisms. The strain is classified and named as bacillus coagulans JSSW-LA-07-1 and is preserved in China General Microbiological Culture Collection Center with preservation number of CGMCC No. 10182. The invention also discloses a preparation method of a strain powder preparation, wherein the method comprises the following steps: activating and fermentation-cultivating the bacillus coagulans JSSW-LA-07-1 which serves as an initial strain, so that a fermentation broth is obtained, centrifuging the fermentation broth at a high speed and collecting a wet strain; mixing the wet strain with dry starch in the mass ratio of 1 to (2-10); drying at 30-50 DEG C for 20-24h; grinding by virtue of a grinder; and filtering by virtue of a 0.9mm sieve, so that the strain powder preparation is obtained; in the strain powder preparation, bacterium concentration is no less than 5.0 to the power of 8 (CFU) / g; the strain powder preparation, when used as an additive of fish culture feed, is added by 1.0-5.0mg / kg to feed basal diet; and the strain powder preparation, when used as a water quality improver for aquaculture, is sprayed to a full tank by the dosage of 50-200g / mu.m (mu is a unit of area, equal to 0.0667 hectares).
Owner:江苏省苏微微生物研究有限公司

Special ecological feed for promoting growth of lobsters

The invention discloses a special ecological feed for promoting growth of lobsters. The special ecological feed is prepared from the following raw materials of bean cake powder, rapeseed meal powder, bran powder, bran powder, flour, purple sweet potato powder, pumpkin powder, pine needle powder, mulberry leaf powder, sunflower straw powder, olive oil, fish meal, cuttlefish cream, shrimp shell powder, egg shell powder, bee pollen, maifan stones, a microecological preparation, seaweed, garlic powder, flavomycin, olaquindox, betaine, an enzyme preparation and vitamin E. The special ecological feed for promoting the growth of the lobsters, provided by the invention, is reasonable in formula and comprehensive in nutrients and has the effect of promoting the growth, the cost is reduced, and besides, the growth requirement of the lobsters can be met.
Owner:DINGYUAN PEIZHANG ECOLOGICAL GARDEN CO LTD

Feed for culturing pelteobagrus fulvidraco and preparation method of feed

The invention relates to the field of processing of aquatic feed and discloses feed for culturing pelteobagrus fulvidraco and a preparation method of the feed. The feed comprises Peru fish meal, Mauritius fish meal, bean pulp, flour, soybean oil, monocalcium phosphate, zeolite powder, marine fish compound premix, feed-grade calcium propionate, vitamin C and an anti-oxidant, wherein the mass percentage of the Peru fish meal is 10%-30%. According to the feed for culturing the pelteobagrus fulvidraco, multiple appropriate components with low costs are adopted for reduction of the proportion of the Peru fish meal, the cost is reduced, meanwhile, the feed has the higher quality, the coefficient of the feed can be decreased, and the specific growth rate and the relative weight gain rate of the pelteobagrus fulvidraco can be increased.
Owner:COFCO FEED +1

Easy-to-digest and growth-promoting ecological feed for lobsters

The invention discloses an easy-to-digest and growth-promoting ecological feed for lobsters. The feed is prepared from wheat flour, broad beans, sweet corn flour, chicken intestine meal, beetle meal, shell powder, oenanthe javanica, algae powder, decavitamin, chlorine chloride, betaine, lactobacillus, aspergillus niger, beef tallow, fish oil, xylanase, phytase and an additive, wherein the additive is prepared from raw materials as follows: radix astragali, herba houttuyniae, dried tangerine or orange peels, quisqualis indica, hawthorn fruits, radix isatidis, leucaena glauca, clover, glutathione, octacosanol, lysoph-osphatidylcholine, L-magnesium aspartate, zinc sulfate, linolenic acid, linoleic acid and peptidoglycan. The easy-to-digest and growth-promoting ecological feed for the lobsters is balanced in nutrition and easy to digest, can promote growth of the lobsters, enhances immunity of the lobsters and reduces the incidence rate.
Owner:DINGYUAN PEIZHANG ECOLOGICAL GARDEN CO LTD

Epinephelus akaara compound feed and preparation method thereof

The invention relates to a compound feed for aquaculture animals, particularly relates to an epinephelus akaara compound feed, and further relates to a preparation method for the epinephelus akaara compound feed. The epinephelus akaara compound feed disclosed by the invention is composed of the following various components in parts by mass: 20-30 parts of fish meal, 10-18 parts of euphausia superba meal, 10-18 parts of clam worm meal, 6-10 parts of kelp meal, 6-10 parts of red bean meal, 4-8 parts of cottonseed meal, 4-8 parts of sweet potato meal, 4-8 parts of rapeseeds, 4-6 parts of lucerne meal, 2-4 parts of houttuynia cordata, 1-3 parts of dandelion, 1-3 parts of dry ginger powder, 1-2 parts of shell powder, 1-2 parts of compound multivitamins, 2-4 parts of fish oil and 1-3 parts of soybean oil. The epinephelus akaara compound feed disclosed by the invention has the advantages of being low in feed coefficient, high in specific growth rate of bastard halibut after feeding bastard halibut, and high in survival rate.
Owner:QINGDAO HAIZHIXING BIOLOGICAL SCI & TECH

Culture medium for clean production of riboflavin and method

The invention relates to a culture medium for clean production of riboflavin and a method. Molasses is replaced with glycine betaine, the matching proportion of glucose to molasses is regulated and controlled in basic materials and a fermentation process supplementary material culture medium, residues are reduced, and clean production is achieved. Meanwhile, traditional organic nitrogen source corn steep liquor and yeast powder are replaced with a novel organic nitrogen source baker's yeast extractum, metabolism regulation and bioengineering optimization are carried out, therefore, the biomassis increased, the fermentation period is shortened, and continuous beneficiating is achieved. By means of the method, fast growth of thalluses can be promoted, the specific growth rate can be increased, the thalluses are prompted to synthesize riboflavin efficiently, the fermentation culture time is shortened, and is shortened by 10 h to 20 h compared with a conventional process, the fermentationlevel is improved, in-tank residues are reduced (amino nitrogen is reduced by 52% to 68%), and the light-previous degree of fermented mash is improved by 17% to 20%; the aim of clean production is achieved, the production comprehensive cost is reduced, and the fine regulation and control are achieved.
Owner:NINGXIA QIYUAN PHARMA

Method for preparing zymophyte powder of caterpillar fungus

InactiveCN1831108AImprove the body's antioxidant capacityImprove the activity of immune-related enzymesFungiPlant ingredientsBiotechnologyZymogen
The invention disclose a manufacture method for Chinese caterpillar fungus zymogen powder that includes the following steps: making solid culture medium that made up from the solid materials of 82-88wt% rice, 8-12wt% bran, 3-4wt% soybean meal, and 1-2wt% ammonia sulfate, and adding 0.9-1.1 weight ratio water after crushing the solid material taking sterilization and cooling; fermenting under the condition of asepsis and inoculating onto the solid culture medium for 7-10 days in 20-22 degree centigrade, drying the white hypha in 40-50 degree centigrade and crushing, the product would be gained. The invention is low cost and has high yield.
Owner:ZHEJIANG UNIV

Preparation method and application of eucommia ulmoides fermentation product

The present invention provides a preparation method of a eucommia ulmoides fermentation product. The method comprises the steps of mixing eucommia ulmoides leaf powder and a solid strain according tothe mass ratio of 500:1 for fermentation, and uniformly mixing a mixture and water according to the ratio of (3-4):1 by g:ml. The invention further discloses an application of the eucommia ulmoides fermentation product in preparation of aquatic feed and the pseudosciaena crocea feed. By adding the low-content eucommia ulmoides fermentation product into the feed, the growth performance of pseudosciaena crocea can be improved by enhancing the oxidation resistance and immunity of the pseudosciaena crocea and improving the intestinal health.
Owner:OCEAN UNIV OF CHINA +1

Ecological feed capable of promoting growth of lobster and improving quality of lobster

The invention discloses an ecological feed capable of promoting growth of a lobster and improving the quality of the lobster. The ecological feed is prepared from the following raw materials: wheat meal, broad beans, bran, ant powder, field-snail-meat, shell powder, bengal waterdropwort herb, balsampear flowers, algae powder, multi-vitamins, choline chloride, lysoph-osphatidylcholine, glycine betaine, lactic acid bacteria, aspergillus niger, nucleotide, beef tallow, fish oil, xylanase, phytase, glutathione, octacosanol, rhizoma curculiginis, polygonum multiflorum, pine needles, gynostemma pentaphylla, glossy privet fruits, quispualis indica, malt, hawthorn and radix isatidis. The ecological feed capable of promoting growth of the lobster and improving the quality of the lobster is reasonable in formula and comprehensive in nutrition; the growth of the lobster can be promoted, the immunity of the lobster can be promoted, and the quality of the lobster can be improved.
Owner:DINGYUAN PEIZHANG ECOLOGICAL GARDEN CO LTD

Bacillus subtilis strain and application thereof in aquaculture

The invention relates to the technical field of functional microorganism screening and application, in particular to novel bacillus subtilis and application thereof in aquaculture. The bacillus subtilis is screened from intestinal tracts of litopenaeus vannamei, the preservation number is CCTCC NO: M 2020091, pathogenic bacteria can be significantly inhibited, the immunity and disease resistance of aquatic animals are improved, protease and amylase are produced to improve feed digestion and utilization, and the growth of the aquatic animals is promoted, and the bacillus subtilis can be widelyapplied to the field of aquatic feeds.
Owner:青岛玛斯特生物技术有限公司 +1

Application of feed additive to soft-shelled turtle feed capable of improving meat quality and growing performance of soft-shelled turtles

The invention discloses an application of a feed additive to a soft-shelled turtle feed capable of improving meat quality and growing performance of soft-shelled turtles, and belongs to the technicalfield of feed additives. The feed additive comprises 10-45% of glycerol monolaurate, 10-30% of glyceryl dilaurate, 30-55% of glycerol monostearate and 5-15% of a carrier. The glycerol monolaurate, theglyceryl dilaurate, the glycerol monostearate are compounded according to the appropriate content and proportion, so that the feed additive is prepared. The feed additive can be used for trionyx sinensis during growth phase, the growing properties of the trionyx sinensis can be improved, and further, the breeding economic benefits are increased. The feed additive can notably increase the muscle of the trionyx sinensis and the content of crude proteins, the total content of amino acids, the content of necessary amino acids and the content of palatable taste amino acids in turtle edges of the trionyx sinensis can be notably increased, the nutritional quality, the mouth feel and the flavor of the trionyx sinensis are effectively improved, and contradiction between growth rate and quality issolved.
Owner:ZHEJIANG UNIV +1

Organic yellow catfish feed and preparation method thereof

The invention discloses an organic yellow catfish feed. The organic yellow catfish feed is prepared from the following raw materials in parts by weight: 10-14 parts of fish meal, 20-30 parts of soybean meal, 25-30 parts of flour, 1-5 parts of soybean oil, 0.01-0.1 part of an antioxidant, 0.01-0.1 part of vitamin C, 0.5-1.5 parts of a compound premix for freshwater fish and 4-7 parts of garlic powder. According to the yellow catfish culturing feed disclosed by the invention, various proper low-cost components are used for reducing the proportion of Peruvian fish meal, so that the purpose of reducing the cost is achieved, besides, the situation that the feed has higher quality is guaranteed, the coefficient of the feed can be reduced, and the specific growth rate and the relative weight increment rate of yellow catfish can be increased.
Owner:新昌县赛因斯生物科技有限公司

Microecological compound premixed feed containing Pediococcus acidilactici and application thereof

The invention relates to the technical field of functional microorganism screening and application, and particularly provides microecological compound premixed feed and application thereof in aquaculture. The microecological compound premixed feed contains Pediococcus acidilactici MST02, and the collection number is CCTCCC NO: M2020904. The microecological compound premixed feed can significantlyimprove the intestinal health of aquatic animals, improve the immunity and digestion of aquatic animals, and improve the digestion and utilization rate of the feed and promote the growth of aquatic animals, can be widely used in the field of aquatic feed.
Owner:青岛玛斯特生物技术有限公司 +1

Application of gene spkD for regulating growth rate of Synechocystis

The invention relates to the application of a gene spkD for regulating growth rate of Synechocystis. Application of the gene spkD regulating the growth rate of Synechocystis in increasing the growth rate of Synechocystis and / or restoring the growth rate after light stress; The nucleotide sequence of the gene spkD is shown in SEQ ID NO. 1. The invention discloses for the first time the important role of spkD gene of Microcystis aeruginosa PCC7806 in improving the growth rate of Synechocystis. The average specific growth rate of the transgenic Synechocystis sp. Increased by 13.97% compared withthe wild type in 6 days under normal culture conditions, However, both mutants overexpressing spkD gene and wild type exhibited overcompensatory growth performance in the light recovery stage (6 daysculture stage) after light limitation stress, and the specific growth rate of mutants increased by 7.13% compared with wild type in the overcompensatory growth stage.
Owner:TIANJIN AGRICULTURE COLLEGE +1

Mixed feed special for cynoglossus semilaevis larvae and preparation method thereof

The invention relates to a fish feed, in particular to a mixed feed special for cynoglossus semilaevis larvae and a preparation method of the mixed feed special for the cynoglossus semilaevis larvae. The mixed feed special for the cynoglossus semilaevis larvae comprises the following ingredients including, by mass, 30-40 parts of fish meal, 10-20 parts of dried artemia meal, 8-14 parts of dried clam worm meal, 8-14 parts of dried red nematode meal, 6-10 parts of kelp meal, 4-8 parts of corn meal, 4-8 parts of vegetable seeds, 4-6 parts of dried heartleaf houttuynia herb, 2-4 parts of cooked yolk, 2-4 parts of fish oil, 2-4 parts of dried carrot power and 1-3 parts of dried hawthorn fruit powder. The mixed feed special for the cynoglossus semilaevis larvae is provided according to the energy metabolism mode and nutritional need of the cynoglossus semilaevis larvae, can completely replace a biological bait, and the cynoglossus semilaevis larvae fed with the mixed feed is high in survival rate, low in feeding coefficient and high in specific growth rate.
Owner:QINGDAO HAIZHIXING BIOLOGICAL SCI & TECH

Efficient, low-carbon and environment-friendly Takifugu rubripes ecological culture mode

The invention belongs to the technical field of aquaculture and in particular relates to an efficient, low-carbon and environment-friendly Takifugu rubripes ecological culture mode. The mode comprises the following steps: clearing, sun-drying and sterilizing a pond and applying fermented manure; putting young razor clams and short necked clams, wherein the specification of the young razor clams is 4000-8000 / kg and 1-2kg of young razor clams is put per mu; the specification of young short necked clams is 6000-10000 / kg and 4-5kg of young short necked clams is put per mu; putting jellyfish into the pond; putting bio-floating beds into the culture pond, wherein water spinaches or other salt tolerant plants are planted in the bio-floating beds, and the coverage rate of the bio-floating beds on the culture water surface is 18-25%; breeding 500-700 Takifugu rubripes fries with weights of 2-4g per mu. The mode has the effects of reducing the unit culturing cost and increasing the utilization rate of the culture water and the whole economic benefits of culture.
Owner:OCEAN UNIV OF CHINA +1

Micro-ecological preparation for improving growth and disease resistance performance of sebastes schlegeli juvenile fish and application method

The invention discloses a micro-ecological preparation for improving the growth and disease resistance performance of sebastes schlegeli juvenile fish and an application method. The micro-ecological preparation is characterized by comprising lactic acid bacteria with the China General Microbiological Culture Collection Center (CGMCC) number of No. 15649; the concentration is equal to 1*10<5> CFU / g. The lactic acid bacteria have no dangers on the sebastes schlegeli juvenile fish and have a relatively good probiotic effect; the growth performance and disease resistance of the sebastes schlegelijuvenile fish can be remarkably improved.
Owner:山东省海洋资源与环境研究院

A matching model of large yellow croaker-asparagus comprehensive breeding

The invention discloses a large yellow croaker-asparagus integrated culture matching mode. Asparagus is cultured in large yellow croaker culturing cages in a hung mode, and a whole cage culturing area serves as an integrated system; the reasonable matching culturing quantities of large yellow croakers and the asparagus are calculated by taking dissolved inorganic nitrogen and dissolved inorganic phosphorus as balance indexes and monitoring the net flux of input and output nutrient salt pollution loads flowing through the system according to the nitrogen and phosphorus nutrient salt circulation path and the nutrient salt absorbing capacity of the asparagus. According to the large yellow croaker-asparagus integrated culture matching mode, the water eutrophication condition of the culturing area can be effectively improved, the nutrient salt released by cage culturing is quickly absorbed by large kelp, and therefore the kelp yield is increased; the dissolved oxygen content in water is increased through the photosynthesis of the large kelp, better living environment and habitat environment are supplied to fishes, the fish harvesting yield is increased, disease occurrence is reduced, and therefore the good ecological benefits and economic benefits are achieved.
Owner:SHANGHAI OCEAN UNIV

Method for improving tolerance of Escherichia coli to flavonoids compounds

The invention discloses a method for improving the tolerance of Escherichia coli (E. coli) to flavonoids compounds and belongs to the field of genetic engineering. According to the method disclosed by the invention, a fact that the increase in an expression quantity of FadL can alleviate the growth of E. coli in an adverse environment where flavonoids exist, that is, the FadL protein can improve the tolerance of E. coli to flavonoids compounds is found by a proteomics approach, then through a genetic engineering technology, fadL gene from E. coli BL21 (DE3) is over-expressed in E. coli BL21 (DE3) to obtain engineering bacteria capable of tolerating the flavonoids compounds and the flavonoids compounds are exogenously added into an E. coli growth environment. Compared to the original bacteria, the engineering bacteria have the characteristic that the maximum specific growth rate is increased by 2.53 times.
Owner:JIANGNAN UNIV

Composite immunostimulant and application of composite immunostimulant in scophthalmus maximus culture

InactiveCN102406076AIncrease weight gainEnhance phagocytosis index and superoxide dismutase activityAnimal feeding stuffRare-earth elementScophthalmus
The invention relates to a composite immunostimulant used for culturing scophthalmus maximus, which is composed of rare earth element, chitosan oligosaccharide, glycyrrhizic acid and zeolite powder. The scope of the weight percent are respectively: 12-17, 13-20, 12-17 and 43-63. The present invention has the advantages that (1) the composite immunostimulant is taken as a feed in scophthalmus maximus culture, the addition is only 0.025-0.045%; (2) the weight gain rate, specific growth rate, feed coefficient and survival rate of scophthalmus maximus juvenile can be substantially enhanced; (3) phagocytosis index of scophthalmus maximus and superoxide dismutase activity can be substantially increased; (4) the raw material of the invention has stable source and the production technology is simple.
Owner:OCEAN UNIV OF CHINA

Low-fishmeal feed capable of improving protein content of black carp meat

The invention belongs to the technical field of black carp breeding, and particularly relates to low-fishmeal feed capable of improving the protein content of black carp meat. The low-fishmeal feed comprises the following raw materials in parts by weight: 35-40 parts of peanut pulp, 5-10 parts of fishmeal, 8-12 parts of corn flour, 2-6 parts of beer yeast, 3-5 parts of high gluten flour, 3-5 partsof fish oil, 1-2 parts of compound fatty acid, 0.5-0.7 part of minerals and vitamins and 0.1-0.2 part of amino acid. Compared with the prior art, the low-fishmeal feed has the following advantages: through analysis on the nutritional components required by black carps, peanut meal is prepared into the peanut pulp to substitute for the fishmeal in quantity, the growth performance of fish bodies has no obvious change, and also the protein content in the black carp meat can be effectively improved, thereby reducing the cost of fish feed and simultaneously improving the quality of the fish meat;and the feed has good stability in water through sufficient conditioning.
Owner:五河县茂源水蛭生态养殖专业合作社

Ecological feed for improving quality of lobsters

The invention discloses an ecological feed for improving quality of lobsters. The ecological feed comprises the following raw materials of broad beans, cottonseed cakes, peanut meal, fish meal, blood powder, shrimp shell powder, conch powder, algae powder, composite vitamins, threonine, microzymes, aspergillus niger, mango leaves, balsampear flowers, nucleotide, butter, fish oil, xylanase, phytase, betaine, rosa multiflora roots, alfalfa powder, radix polygalae, fennel seeds, tree peony bark, shrub chastetree fruits, pumpkin seeds and Chinese yam rhizomes. The ecological feed for improving the quality of the lobsters, provided by the invention, is comprehensive in nutrients and reasonable in formula; and the immunity of the lobsters can be enhanced, the growth of the lobsters can be promoted, the quality of the lobsters can be improved, and the economic benefits of breeding households can be increased.
Owner:DINGYUAN PEIZHANG ECOLOGICAL GARDEN CO LTD

Micro-ecological composite additive and application thereof in aquaculture

The invention relates to the technical field of functional microorganism screening and application, and particularly provides a micro-ecological composite additive containing bacillus subtilis DN02 and application of the micro-ecological composite additive in aquaculture. The bacillus subtilis DN02 is screened from intestinal tracts of litopenaeus vannamei, the preservation number is CCTCC NO: M2020091, pathogenic bacteria can be significantly inhibit, the immunity and disease resistance of aquatic animals are improved, protease and amylase are produced to improve feed digestion and utilization, the growth of the aquatic animals is prompted, and the bacillus subtilis DN02 can be widely applied to the field of aquatic feeds.
Owner:青岛玛斯特生物技术有限公司 +1
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