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

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.

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.

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.

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.

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).

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.