230 results about "Wheat Brans" patented technology

The invention discloses a method for improving the conversion efficiency of insoluble dietary fibers and soluble dietary fibers obtained by the method, and belongs to the technical field of food processing and functional ingredient modification. The method comprises the following steps: performing superfine grinding treatment on wheat bran to obtain wheat bran powder; adding water into wheat bran powder, and then carrying out high-temperature and high-pressure treatment to obtain a wheat bran solution; then carrying out stepped enzymolysis on the wheat bran solution to obtain enzymatic hydrolysate; the enzymatic hydrolysate is centrifuged, lower-layer solid precipitates are insoluble dietary fibers, supernate is subjected to ethanol precipitation, and the soluble dietary fibers are obtained. The wheat bran is modified by combining superfine grinding and high-temperature and high-pressure pretreatment with stepped enzymolysis, so that the yield of the soluble dietary fibers is remarkably increased, and the functional characteristics of the soluble dietary fibers are improved. The obtained soluble dietary fiber has excellent physicochemical properties and physiological functions, and can be widely applied to baked foods, beverages, dietary supplements and other products, so that the soluble dietary fiber has important application prospects and value in the technical field of food processing.

The invention discloses a fermentation process of citric acid residues, and relates to the technical field of organic acid fermentation. The fermentation process comprises the following steps: mixing and crushing citric acid residues and wheat bran according to a mass ratio of (4-5): 1 to obtain a mixed material; spraying an ammonia water solution, a magnesium sulfate solution and a zinc sulfate solution into the mixed material, adjusting the pH value to 5.0-5.5, sterilizing, adding a urea solution and a basic nutrient solution, and uniformly mixing to obtain slurry; aspergillus niger and saccharomycopsis fibuligera are mixed according to the spore number ratio of 100: 1, then sterile water is added, the mixture is stirred to be uniform, and bacterial liquid with the spore concentration of 1 * 10 < 7 >-5 * 10 < 7 > / mL is obtained; spraying the bacterial liquid to the surface of the slurry, performing aerobic culture for 40-48 hours under the conditions that the temperature is 30-35 DEG C and the humidity is 80-85%, then cooling to 25-30 DEG C, reducing the humidity to 70-75%, spraying methanol at the same time, and performing sealed culture for 5-6 days; performing drying; and the acid yield and the nutrient substance yield in the finally obtained fermentation product are obviously improved.

The invention discloses a preparation method of fermented quinoa post-generation powder, and belongs to the technical field of functional food raw materials. The method comprises the following steps: mixing a quinoa base material (quinoa bran powder and / or quinoa flour) with water to prepare slurry with the solid content of 10-40% (w / w); carrying out heating and gelatinization treatment on the slurry at 75-100 DEG C for 5-60 minutes, and then cooling to 30-45 DEG C; lactic acid bacteria are inoculated for fermentation, the fermentation temperature is 25-45 DEG C, the fermentation time is 4-48 h, and the pH value at the fermentation end point is controlled to be 3.6-4.6; after the fermentation is finished, carrying out inactivation treatment on a fermentation product at 70-100 DEG C for 1-60 minutes; and drying in a spray drying or freeze-drying manner to obtain the fermented quinoa post-raw powder, wherein the water content of the obtained powder is less than or equal to 10%. According to the method disclosed by the invention, the cereal raw taste and the coarse flour feeling of the quinoa powder can be remarkably improved, the brewing dispersity is improved, the sedimentation is reduced, and the post-prebiotics base powder raw material suitable for normal-temperature storage and development of downstream solid beverages, nutrition powder and other products is obtained.

The invention discloses a biological energy feed fermentation yeast based on enzyme-mineral synergistic activation and a preparation method thereof. According to the scheme, dual functions of mineral activation and microbial conversion are focused, clinoptilolite, sodium bentonite and kaolin are taken as mineral carriers, lignite humic acid is taken as a nutrient synergist, brown sugar, rice bran and bran organic matrixes are matched, and mineral lattice structures are broken through mechanical crushing and biological enzymolysis pretreatment, so that the mineral active substances are obtained. And through a double-stage fermentation process of'aerobic fermentation to activate flora and anaerobic aging to enrich metabolites' of microorganisms, mineral ions, humic acid active ingredients and probiotic metabolites are released to the maximum extent, and finally, the high-quality biological energy feed fermentation yeast with nutrition supply, digestion promotion and immune regulation functions is formed. According to the bioenergy feed prepared by conversion of the fermentation yeast, the feed crude protein improvement rate is greater than or equal to 20%, the crude fiber degradation rate is greater than or equal to 40%, the feed conversion rate is improved by 10-15%, the intestinal disease incidence rate is reduced by 60-70%, and the bioenergy feed is suitable for various livestock and poultry and aquaculture scenes.

The invention relates to a feed additive for producing high-nutrition low-cholesterol eggs. The feed additive comprises natural grains, microalgae and a microalgae extract, and is prepared from the following raw materials in percentage by weight: 20-70% of corn, 5-10% of wheat bran, 5-10% of soybean meal, 5-20% of spirulina powder, 5-20% of chlorella powder and 5-20% of haematococcus pluvialis. The feed additive is added into laying fowl feed according to the proportion of 1-2wt%, the feed additive and the laying fowl feed are uniformly mixed and then fed, low-cholesterol poultry eggs rich in protein, algae source carotenoid, calcium, magnesium, zinc, iron and other nutritional ingredients can be stably obtained after the laying fowl feed is fed for 2 weeks, compared with common poultry eggs, the cholesterol content can be reduced by 26%, and the poultry eggs are fine and smooth in taste, free of fishy smell and good in taste. The nutrition and quality of poultry eggs are remarkably improved, and economic benefits are improved.

A fermented traditional Chinese medicine feed additive for catfish, its preparation method, and its application are disclosed, relating to the field of aquatic feed additives. The preparation method involves activating and expanding the culture of *Saccharomyces cerevisiae*, *Bacillus subtilis*, and *Lactobacillus plantarum*; pulverizing *Paeonia suffruticosa* leaves, *Smilax china*, *Scutellaria baicalensis*, *Rhus chinensis*, hawthorn, *Polygonum cuspidatum*, ginkgo, and forsythia suspensa* to obtain traditional Chinese medicine powders; preparing a solid fermentation medium using the traditional Chinese medicine powders, soybean meal powder, corn cob granules, and wheat bran; inoculating *Saccharomyces cerevisiae* seed culture and *Bacillus subtilis* seed culture for aerobic fermentation; and inoculating *Lactobacillus plantarum* seed culture for anaerobic fermentation to obtain the fermented traditional Chinese medicine feed additive. The resulting fermented traditional Chinese medicine feed additive promotes the absorption and metabolic elimination of enrofloxacin in catfish, shortens the withdrawal period, has preventive and adjunctive therapeutic effects on bacterial diseases in catfish, promotes growth, reduces feed conversion ratio, and improves survival rate.

The preparation method comprises the following steps: mixing a termite palatable cellulose material, wheat bran, gypsum, cane sugar and water to prepare a culture material, packaging and sterilizing the culture material, inoculating the Irpex lacteus, culturing until hyphae cover all the culture material, and carrying out freeze-drying to obtain the Irpex lacteus living fungus termite bait. The hypha living body state is kept for trapping odontotermes formosanus to eat. Experiments of three indoor devices show that the food calling effect of the Irpex lacteus bait block on odontotermes formosanus is obviously superior to that of a sterile culture material contrast bait block. Field tests show that the eating efficiency of the Irpex lacteus living fungus bait is obviously superior to that of natural plant bait circulating in the current market. Meanwhile, breathable tubular and bag-shaped packaging is convenient to store and carry, and hyphae can survive for a long time. The Irpex lacteus living fungus bait is good in termite trapping effect, high in eating speed, not prone to being polluted by infectious microbes and suitable for monitoring, trapping and killing odontotermes formosanus on dams and gardens.

This invention relates to the field of feed processing technology and discloses a compound nutritional feed premix and its preparation method. By total mass percentage, it comprises the following components: 52.60%–54.60% jujube powder, 17.50%–18.30% lard and tile powder, 23.20%–24.10% wheat bran, 0.25%–0.40% edible salt, 0.40%–0.60% compound vitamins, 1.10%–1.30% compound trace elements, 0.80%–1.00% lysine, 1.10%–1.30% montmorillonite, and 0.15%–0.20% compound enzyme preparation. By using pitted Xinjiang jujube powder and fresh lard and tile powder as core raw materials, combined with wheat bran, edible salt, compound vitamins, compound trace elements, lysine, and montmorillonite with a blue absorption capacity of 42, the premix achieves nutritional complementarity among various raw materials and improves the palatability and overall nutritional value of the feed.

The application discloses a non-water-returning fish bait and a preparation method thereof. The bait comprises the following components in percentage by weight: wheat germ powder 10-20%, snowflake powder 10-20%, shell powder 5-15%, wheat bran 10-25%, fermented rice husk powder 15-30%, and animal protein powder 8-20%. By adding various nutritional ingredients, the bait can maintain the state of entering water, and will not return water for a long time after being formed into a group. When used, the bait does not need to be kneaded and adjusted again, has good state maintaining property, and improves the fishing experience.

The invention belongs to the field of food processing and safety, and provides a preparation method of low-GI triticale whole grain noodles. The optimal formula of the prepared low-GI triticale whole grain noodles comprises 13.60% of triticale modified wheat bran, 12.87% of vital gluten, 13.00% of resistant starch, 4% of Chinese yam powder, 0.8% of Sanzan gum and the balance of triticale flour. The predicted sensory score of the whole-grain noodles is 82.72, the sensory score of the whole-grain noodles obtained through verification experiments is 83.55, the GI value of the whole-grain noodles is 54.93, and the whole-grain noodles are low-GI food; the invention further provides a matched intelligent temperature-control rolling device capable of controlling temperature and humidity and used for noodle production, multiple rolling and low-temperature fermentation functions are integrated, and through cold air diversion and water mist humidification, the temperature and humidity are controllable, and the problems of equipment land occupation and process gaps are reduced.

The invention provides a heat-stress-resistant laying hen feed and a preparation method thereof. The heat-stress-resistant laying hen feed comprises the following raw materials in parts by weight: 50-60 parts of corn, 10-20 parts of soybean meal, 5-15 parts of wheat bran, 1-5 parts of vegetable oil, 5-12 parts of fish meal, 2-5 parts of beta-alanine, 2-5 parts of activated black bean powder, 2-5 parts of quercitrin, 0.2-0.5 part of multivitamins, 4-8 parts of an electrolyte poising agent and 2-3 parts of compound amino acids. The activated black bean powder is obtained by performing enzymolysis activation on black bean powder by using an aromatic amino acid decarboxylase preparation. The laying hen feed disclosed by the invention can be used for feeding laying hens in a high-temperature environment in summer, and through a unique heat stress resistant formula, the heat stress resistant capacity of the laying hens is remarkably improved, adverse effects caused by heat stress are reduced, meanwhile, the antioxidant capacity and the immune function of the laying hens are enhanced, and the growth performance and the egg laying performance of the laying hens are improved.

The invention provides an oyster mushroom culture medium which comprises the following raw materials in percentage by weight: 40-50% of cottonseed hull, 10-15% of corncob, 8-15% of sawdust, 6-10% of purple perilla composite powder, 5-8% of tea seed cake pretreatment powder, 3-5% of mint composite powder, 5-8% of wheat bran, 1-2% of gypsum and 0.5-1% of calcium superphosphate, the water content of the culture medium is 65-70%, and the pH value is 6.5-7.5. The invention also provides a preparation method of the oyster mushroom culture medium, which comprises the following steps: mixing the materials according to the formula proportion, and uniformly stirring; adding clear water to adjust the water content to 65-70%, stirring, and standing for 12 hours to enable the raw materials to fully absorb water; the filling amount of each bag is 1.2 kg, sterilizing for 2-3 hours by adopting 121 DEG C high-pressure steam, and cooling to 25 DEG C or below for later use. By adding the purple perilla, the sasangua cake and the mint, the insect prevention performance of the culture medium is remarkably improved, the infectious microbe contamination rate is controlled to be 3% or below, the pest invasion rate is remarkably reduced, and the biological conversion rate and the oyster mushroom quality are remarkably superior to those of a traditional culture medium.

The application provides a kind of complex hydrolytic enzyme and its preparation method, it is related to enzyme engineering technical field.The preparation method includes: aspergillus niger is inoculated in culture medium to carry out fermentation, and the fermentation liquor containing beta-glucosidase is collected;The fermentation liquor is subjected to solid-liquid separation to obtain beta-glucosidase preparation;Add alpha-L-arabinofuranosidase and cellobiohydrolase to obtain the complex hydrolytic enzyme.This technology uses specific content of sodium carboxymethyl cellulose and wheat bran to synergistically ferment, the activity and specificity of the main enzyme beta-glucosidase are greatly improved by nutritional induction and conformation simulation;Subsequently, alpha-L-arabinofuranosidase and cellobiohydrolase are compounded, the single enzyme limitation is broken and the feedback inhibition is removed, and the overall catalytic efficiency and conversion rate are significantly improved.

This invention relates to the field of *Glechoma heliotropium* cultivation technology. It relates to a soilless cultivation method for *Glechoma heliotropium*, using oak sawdust, wheat bran, corn flour, glucose, magnesium sulfate, potassium dihydrogen phosphate, and gypsum as culture medium raw materials to prepare mycelium logs. *Glechoma heliotropium* is inoculated into bagged culture medium and cultured under suitable conditions to achieve stable fruiting. This invention allows for the large-scale production of *Glechoma heliotropium* fruiting bodies, which can be promoted and applied as a natural functional food, and the active substances can be extracted for use in health products or pharmaceuticals.

The application discloses a preparation method of bio-modified wheat bran containing xylo-oligosaccharide, and comprises the following steps: fermenting wheat bran by using mixed strains and composite enzymes; wherein the mixed strains comprise lactic acid bacteria, Saccharomyces cerevisiae and Bacillus licheniformis; and the composite enzymes comprise cellulase and xylanase. The preparation method provided by the application effectively reduces the contents of crude fiber and neutral detergent fiber in the wheat bran, increases the contents of crude protein and xylo-oligosaccharide in the fermented wheat bran, which are beneficial to the growth and development of animals, and improves the nutritional value of the wheat bran, so that the proportion of the wheat bran in feed application can be increased, and the addition amount of corn and soybean meal can be reduced.

The application belongs to the technical field of wheat bran modification, and particularly relates to wheat bran with high soluble dietary fiber content and a preparation method thereof. The preparation method comprises the following steps: S1, preparing a eutectic solvent; S2, preparing a diluted eutectic solvent-water solution by using the eutectic solvent and water; S3, adding the wheat bran into the eutectic solvent-water solution, stirring and heating to obtain treated material; S4, cooling the treated material to room temperature, adjusting pH, adding solvent A, and standing to obtain a solution system; and S5, filtering the solution system to obtain a filter cake, washing the filter cake, and sequentially drying, grinding and sieving the filter cake to obtain the wheat bran with high soluble dietary fiber content. The percentage content of soluble dietary fiber in the wheat bran with high soluble dietary fiber content prepared by using the preparation method is 29.72% to 46.08%, and the percentage content of total dietary fiber is 67.75% to 70.56%.

1. Name of the product in this design: Packaging Box (Wheat Bran Tart). 2. Purpose of this design: For use in packaging boxes. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

The application discloses a preparation method of insect manure organic fertilizer, which comprises the following materials: test wheat bran with a particle size of 150 um, fermentation feed and black soldier fly insect manure. The application takes black soldier fly combined with microorganism processing of pineapple processing waste as the object, studies the influence of feed proportion with pineapple processing waste as the main feeding raw material on the growth performance of black soldier fly, the nutritional quality of black soldier fly dry insects, the conversion effect of pineapple processing waste and the reduction rate, improves the utilization rate of pineapple processing waste, and obtains suitable breeding black soldier fly larvae feed proportion, so that the black soldier fly larvae obtain higher social value and ecological benefits.

This invention discloses a method for preparing livestock feed based on the recycling of kitchen waste, relating to the fields of waste resource utilization and feed processing technology. The method includes: transferring raw materials using a closed device; removing inorganic impurities and metals through negative pressure unloading, multi-stage vibration sorting, and magnetic iron removal; adjusting the particle size of the material using a heavy-duty high-speed pulverizer to increase the specific surface area; using high-pressure steam for constant-temperature sterilization to achieve complete harmlessness; inoculating fermentation bacteria after the material has been gradually cooled to a preset range, and carrying out biological fermentation in a controlled environment to produce metabolites; finally, adding corn flour, soybean meal, and wheat bran in proportion for deep mixing. This invention, through the above scheme, achieves complete inactivation of pathogenic bacteria and precise removal of foreign matter, significantly improving the biosafety and digestibility of the recycled feed, realizing a high-value closed-loop recycling of waste, and exhibiting significant environmental and economic benefits.

This invention relates to a blueberry lutein ester hawthorn cookie with a protective effect on vision and its preparation method. The raw material composition is as follows: 100-180 parts flour, 20-80 parts palm oil, 20-80 parts maltitol, 1-30 parts roasted wheat bran, 1-15 parts soybean dietary fiber, 1-10 parts polydextrose, 1-20 parts blueberry powder, 1-20 parts hawthorn powder, 1-20 parts leavening agent, 0.1-6 parts flavoring agent, 0.1-3 parts disodium dihydrogen pyrophosphate, 0.1-3 parts phospholipids, 1-5 parts lutein ester, 0.001-1 part water-soluble β-carotene, 0.1-4 parts blueberry flavoring, and 2-50 parts water. This cookie uses lutein ester, blueberry powder, and water-soluble β-carotene in a scientifically formulated ratio. After being absorbed by the human body, these three ingredients work synergistically to relieve eye fatigue and greatly enhance the protective effect on vision. It also has the advantages of good appearance and color, low calories, crispy and delicious taste, while being low in sugar, relieving eye fatigue, protecting the eyes, rich in dietary fiber, strengthening the spleen and aiding digestion, and maintaining normal intestinal function.

The invention relates to the related technical field of pig feeds, in particular to a soybean-meal-free feed for increasing the intramuscular fat content of pork and application of the soybean-meal-free feed. The feed comprises the following raw materials: corn, fermented rapeseed meal, wheat bran, rice bran and hull, soybean oil, sodium chloride, calcium hydrophosphate, mountain flour, L-lysine hydrochloride, DL-methionine, L-threonine, L-tryptophan, choline chloride, a trace element premix and a vitamin premix. The feed is suitable for growing-finishing pigs with the weight ranging from 30 kg to the market (the weight ranges from 125 kg to 130 kg). The fermented rapeseed meal contained in the feed disclosed by the invention is produced by treating high-temperature hot-pressed rapeseed meal through a special bacterium-enzyme synergistic fermentation process. Tests prove that the feed does not use soybean meal, but the feed intake, the weight gain, the intramuscular fat content of pork and the economic benefit of pigs are remarkably improved.

This invention discloses a fermented feed for improving the natural antibacterial and antioxidant properties of duck eggs. The fermented feed is prepared through a two-stage fermentation process using a fermentation substrate comprising the following components in parts by weight: 35-60 parts corn, 15-30 parts soybean meal, 5-15 parts wheat bran, 4-10 parts rice bran, 5-9 parts extruded flaxseed, 2-6 parts grape seed meal, 1-4 parts moringa flavonoid powder, 0.5-2.5 parts dicalcium phosphate, 0.5-3 parts limestone powder, 0.1-0.5 parts salt, and 0.1-0.8 parts compound premix. The two-stage fermentation involves first inoculating with Bacillus for aerobic fermentation, followed by inoculation with lactic acid bacteria and the addition of chitosan oligosaccharides for anaerobic fermentation. This invention significantly increases the content of active proteins such as lysozyme and ovotransferrin in duck egg white, enhancing its antibacterial properties and antioxidant capacity, and providing an efficient and economical technical path for the development of highly active duck egg white raw materials.

FIELD: veterinary medicine and dietetics.SUBSTANCE: development of complete feed compositions that can provide a therapeutic effect in cases of exocrine pancreatic insufficiency. The composition of a complete dietary feed for cats with exocrine pancreatic insufficiency has been developed in the following ratio, wt.%: grain part: mixture of rice, wheat, hulled barley and corn – 37.0; protein part of plant origin: isolated soy protein, beet pulp, wheat bran, flax seeds – 22.0; protein part of animal origin: feather meal, chicken liver, egg powder – 25.0; mineral supplement: feed chalk, monocalcium phosphate, table salt, plantain seeds Plantago psyllium, mannanoligasaccharides with beta-glucans and lutein – 2.0; vitamin premix: A, D3, E, K, B1, B2, B3, B5, B6, B12, Bc, H, taurine, inulin, beech lignocellulose, complex of natural fulvic and humic acids – 2.5; flavor enhancer in the form of enzymatic hydrolysate of pork and chicken by-products – 3–3.5; brewer's yeast – 2.5–3.0; a mixture of fish and chicken fat – 5.0–6.0.EFFECT: obtaining food for cats with exocrine pancreatic insufficiency, which is easily reproducible, clinically effective, and convenient in dosing and use.1 cl, 3 tbl, 1 ex

The application discloses a traditional Chinese medicine composition with the effect of treating infantile recurrent respiratory tract infection and a preparation method thereof. Through a large amount of clinical practice, the application selects radix pseudostellariae, fried atractylodes, fried rhizoma atractylodis, agastache, levisticus, lonicera, radix scrophulariae, carbonized wheat bran, calcined osseous, ephedra root as raw materials, and is prepared into an oral or external dosage form according to weight ratio. The application has the effects of transporting the spleen, preventing the invasion of pathogenic factors, and consolidating the surface and stopping sweating, and is used for infantile recurrent respiratory tract infection with the syndrome of the spleen failing to transport and the lung and defensive system failing to consolidate. The application is verified by clinical tests, has remarkable curative effect, no toxic side effect, and good safety. Animal experiment researches show that the traditional Chinese medicine composition can effectively relieve the chronic inflammation level of model mice, improve the airway epithelial barrier damage, improve the body's ability to resist pathogenic factors, and reduce the risk of infection. The application can fill the market blank of treating infantile recurrent respiratory tract infection diseases based on the theory of 'four seasons with the spleen being strong and not being invaded by pathogenic factors' and 'the spleen being strong is not about tonifying but about transportation', and has great development prospect.

The application provides a feed additive containing mulberry leaves and a preparation method and application thereof, and belongs to the technical field of feed additives.The feed additive contains the following raw materials in parts by weight: fresh mulberry leaves 50-70 parts, corn flour 5-15 parts, molasses 1-2 parts, rapeseed cake 2-4 parts, wheat bran 15-25 parts and fermentation agent 0.1-0.5 parts.The application can significantly improve the body antioxidant function and immune level of fattening pigs, improve the fatty acid composition of pork, increase the content of unsaturated fatty acids, oleic acid and iron elements, reduce the total amount of saturated fat and muscle bitter amino acids, and improve the pork quality and nutritional value.

The invention discloses a fermentation preparation method of gastrointestinal tract health care traditional Chinese medicine for animals in the technical field of animal feed additives. The method comprises the following steps: crushing traditional Chinese medicines such as astragalus membranaceus, poria cocos, bighead atractylodes rhizome, hawthorn, pericarpium citri reticulatae and liquorice, mixing the crushed traditional Chinese medicines with wheat bran, adding composite probiotics and unique dynamic covalent bonding plant polysaccharide polyphenol three-dimensional network carrier material fine powder, humidifying, fermenting at constant temperature, and finally drying and crushing to obtain the product. The key point is that the carrier material is formed by assembling oxidized sodium alginate, hydrazide carboxymethylated yeast glucan and tea polyphenol tannic acid composite nano-colloid through the synergistic effect of dynamic covalent bonds and hydrogen bonds. The material not only can remarkably improve the survival rate and metabolic activity of probiotics in a fermentation system and promote conversion of active ingredients of traditional Chinese medicines, but also has intelligent responsiveness and can realize targeted slow release in animal intestines, so that the gastrointestinal tract health-care function of a product is comprehensively enhanced, and the growth performance of animals is improved.

This invention discloses a method for indoor artificial rearing of the coconut-boring rhinoceros beetle, belonging to the field of artificial insect rearing technology. The method includes the preparation of a compound feed and phased rearing management: the compound feed uses macadamia nut husks as the main ingredient, supplemented with corn flour, wheat bran, soybean meal, and other auxiliary materials, and is prepared through fermentation, mixing, and humidity control. During rearing, suitable temperature and humidity are controlled for the adult, egg, larval, and pupal stages respectively. Adults are supplemented with fruit, and larvae are given supplemental feed as needed. The feed is regularly changed, and the environment is cleaned. This invention features a scientifically formulated and controllable rearing condition, adapting to the growth needs of the coconut-boring rhinoceros beetle at each developmental stage, ensuring its normal growth and development, improving the rearing success rate and survival rate, and achieving stable indoor artificial rearing of the coconut-boring rhinoceros beetle. This provides a reliable insect source for the research and development of this medicinal and resource insect, and is practical.

This invention relates to the field of insect resource utilization and agricultural waste treatment technology, specifically to a high-linoleic acid black soldier fly oil, black soldier fly larvae, and their applications. The method for raising black soldier fly larvae includes the following steps: black soldier fly eggs are hatched and placed in a hatching substrate for rearing; after obtaining larvae, they are inoculated into a culture feed and then harvested to obtain black soldier fly larvae; high-linoleic acid black soldier fly oil is further extracted. This invention provides a novel insect-based source for obtaining linoleic acid by precisely matching the feed substrate and harvesting time, without relying on traditional plant oil crops. During the high-linoleic acid oil harvesting window, the crude protein content of black soldier fly larvae remains at a relatively high level of 58%~65%. The wheat bran and cassava residue used in this invention are inexpensive and widely available agricultural processing by-products, resulting in low production costs and achieving resource utilization of waste through bioconversion.

The invention provides a fermented corncob as well as a preparation method and application thereof, and belongs to the technical field of ruminant nutrition and feed science. The fermented corncob is prepared from the following raw material components in parts by mass: 32 to 42 parts of corncob, 2.5 to 5 parts of soybean meal, 3 to 5 parts of cottonseed meal, 2 to 4 parts of wheat bran, 2 to 5 parts of rice bran, 2 to 5 parts of glucose, 2.5 to 5 parts of cane molasses, 0.2 to 0.5 part of expanded urea, 2 to 4 parts of attapulgite powder, 0.4 to 0.6 part of compound bacterium enzyme mixture, 0.3 to 0.5 part of feed-grade sodium chloride, 0.3 to 0.5 part of feed-grade magnesium oxide and 34 to 42 parts of water. The corncob and other raw materials are subjected to mixed fermentation through combination of various bacteria and enzymes, so that the nutritional value and the nutritional level of the feed are improved. The fermented corncob can replace part of corn in the feed, the production performance is improved, the feed cost is reduced, resource recycling is effectively promoted, and the palatability of the feed is improved.

The present application relates to the technical field of feed, especially to a growth-promoting feed for fattening pigs and a preparation method thereof, which comprises the following raw materials in parts by weight: corn, wheat bran, soybean meal, rapeseed meal, fish meal, modified hydrotalcite, compound enzyme preparation, probiotic preparation, calcium hydrogen phosphate, stone powder, salt, zinc oxide, copper sulfate pentahydrate, soybean oil, choline chloride, mildew inhibitor and antioxidant. The modified hydrotalcite, compound enzyme preparation and probiotic preparation are used in combination, which can significantly improve the growth performance of fattening pigs, reduce the diarrhea rate, improve the nutrient digestibility and improve the serum metabolic indicators.