468 results about "Fish meal" patented technology

The invention discloses piggy creep feed containing composite flavone. The piggy creep feed is prepared from the following raw materials in parts by weight: 13 to 20 parts of expanded corn, 10 to 25 parts of corn, 6 to 13 parts of broken rice, 8 to 12 parts of flour, 8 to 15 parts of whey mist, 3 to 8 parts of soy protein concentrate, 5 to 10 parts of extruded soybean, 0.7 to 3 parts of soya-bean oil, 7 to 12 parts of 46.5-percent bean pulp, 2 to 5 parts of fish meal, 2 to 5 parts of plasma protein powder, 0.3 to 0.7 part of mountain flour, 0.5 to 1.0 part of calcium hydrophosphate, 0.05 to 0.5 part of lysine, 0.05 to 0.3 part of threonine, 0.1 to 0.3 part of sodium chloride, 0.1 to 0.8 part of compound flavone premix compounds, 0.15 to 0.3 part of zinc oxide, 0.03 to 0.06 part of calcium propionate, 0.02 to 0.04 part of ethoxyquin and 1.0 part of suckling pig premix compounds. The invention also discloses a preparation method. The intestinal tract health and the production performance of weaned pigs can be improved.

The invention discloses a hybrid sturgeon feed and a preparation method thereof, and relates to the technical field of sturgeon feeds, and the key point of the technical scheme is that methionine and lysine are supplemented in a feed in which soybean protein concentrate replaces fish meal, so that the influence of methionine and lysine on the growth performance, liver and intestinal health and muscle quality of hybrid sturgeons is improved. The soybean protein concentrate is used for replacing the fish meal, so that the dosage and production cost of the fish meal are greatly reduced, and meanwhile, the methionine and the amino acid are added, so that the negative influence caused by replacing the fish meal with the soybean protein concentrate is avoided.

The invention discloses an organic fertilizer for planting local cereal crops in a plateau region and a preparation method thereof, and belongs to the technical field of agricultural planting. The organic fertilizer for planting local cereal crops in the plateau region is prepared from the following preparation raw materials: decomposed animal waste, vermiculite, humic acid, citric acid, fish meal, bone meal, straw, cake meal and a compound microbial agent, the carrier is prepared from decomposed animal waste, vermiculite, humic acid and citric acid, so that the mechanical strength and durability of the carrier can be improved, and a good physical state can be kept in the storage, transportation and use processes; through compound use of bacillus licheniformis, bacillus subtilis and bacillus laterosporus and adjustment of the dosage ratio of all strains and the viable count of the compound microbial agent, the soil micro-ecological environment can be improved, breeding of beneficial microorganisms in soil is promoted, growth of harmful bacteria is inhibited, and the soil fertility and the water and fertilizer retention capacity are improved; the fertilizer has a good promotion effect on the growth of spring wheat, oat and other plateau cereal crops.

The present invention relates to the technical field of feeds and particularly relates to a piglet weaning transition feed containing lactic acid bacteria and saccharomycetes compound fermented soybean meal and a preparation method thereof, and the piglet weaning transition feed comprises the following components in parts by weight: 15-20 parts of compound fermented soybean meal, 45-50 parts of corn, 10-15 parts of wheat, 5-7 parts of fish meal, 3-5 parts of whey powder, 3-4 parts of vegetable oil, 1-2 parts of an amino acid supplement and 2-3 parts of a mineral premix, 1-2 parts of a vitamin premix and 1.5-2 parts of a calcium-phosphorus supplement; wherein the compound fermented soybean meal is prepared by performing compound fermentation on soybean meal through lactic acid bacteria and saccharomycetes, and a complementary and symbiotic microbial ecological system is formed by carefully selecting and optimizing the combination proportion of three lactic acid bacteria and two saccharomycetes, so that the fermentation efficiency and stability are improved, and the functionality of a fermentation product is enhanced. Different strains complement each other in the aspects of carbohydrate metabolism, pH tolerance and functional characteristics, and nutrition competition is reduced.

The invention discloses a compound micro-ecological preparation for aquatic products as well as a preparation method and application thereof, and belongs to the technical field of micro-ecological preparations. The microecological preparation disclosed by the invention comprises clostridium butyricum, bacillus licheniformis, enterococcus faecalis and lactobacillus plantarum. The microecological preparation is combined with concentrated cottonseed protein for use, can replace fish meal, is added into feed, can remarkably improve the immunocompetence, oxidation resistance and digestive enzyme activity of animals, and can improve the relative abundance of beneficial bacteria in intestinal tracts, inhibit the growth of pathogenic bacteria and regulate the microecological balance of the intestinal tracts after entering the intestinal tracts of the animals. According to the invention, aerobic bacteria and anaerobic bacteria are cooperatively used, oxygen in the surrounding environment is greatly consumed by bacillus licheniformis and enterococcus faecalis, the proliferation of beneficial bacteria such as clostridium butyricum and lactobacillus plantarum is promoted, and the probiotic effect is fully played.

The invention discloses a microscopic visual detection method for mixing animal-derived adulterated raw materials into fish meal, and particularly relates to the technical field of feed raw material evaluation, and the method comprises the steps of S1, data set construction, S2, sample pretreatment and image acquisition, S3, model construction and training, and S4, model application and result display. The microscopic visual detection method can effectively capture the appearance form, tissue structure, fiber texture, color and luster characteristics and other tiny characters of fish meal and abnormal adulterants under a microscope, and improves the adaptability of the model to environments with different complexity degrees. A visual, accurate and efficient microscopic vision automatic identification method is provided for an adulteration detection link in fish meal quality detection.

The invention provides a formula technology preparation method of a ruminant fattening soybean-meal-free daily ration feed which comprises the following components in percentage by mass: 30-40% of corn, 8-12% of wheat bran, 10-15% of corn distillers' grains, 8-12% of cottonseed meal, 5-10% of rapeseed meal, 3-5% of fish meal, 3-6% of corn protein powder, 5-8% of fermented bean dregs, 6-10% of microbial fermented straw, 2-4% of yeast culture and 1.5-2.5% of mineral element premix. 1-2% of a vitamin premix, 0.3-0.7% of a compound enzyme preparation and 0.5-1% of a microecological preparation. In the traditional feed granulation process, moisture, temperature and pressure are unstable, so that particles are uneven in hardness, large in dust amount and prone to mildewing. According to the method, the optimal granulation parameters are calculated by adopting MOPSO, and the particle uniformity and the storage stability are improved. The intelligent granulation optimization improves the water resistance of particles, reduces crushed materials, improves the palatability of the feed, reduces dust, prolongs the shelf life of the feed, and reduces the storage loss.

The invention discloses a microbial compound feed for improving disease resistance of blue crabs and a preparation method of the microbial compound feed, and belongs to the technical field of feed preparation. The microbial compound feed comprises the following raw materials in parts by weight: 30-40 parts of fermented soybean meal, 20-25 parts of bran, 15-20 parts of fish meal, 5-8 parts of a compound microbial agent, 3-5 parts of algal polysaccharides, 2-3 parts of a radix astragali extract, 1-2 parts of chitosan, 2-3 parts of a mineral premix and 1-1.5 parts of compound vitamins, wherein the compound microbial agent comprises bacillus licheniformis, lactobacillus acidophilus and saccharomyces cerevisiae. The microbial compound feed disclosed by the invention comprehensively improves the disease resistance of the blue crabs and improves the survival rate through various ways, such as nutrition balance, immune regulation and intestinal health improvement, so that the breeding cost is reduced, and the income of farmers is increased.

The invention discloses a Qingyuan chicken feed production process, which comprises: 1, raw material preparation: selecting the following raw materials by weight: 40-50 parts of corn, 20-30 parts of soybean meal, 10-15 parts of wheat bran, 5-10 parts of fish meal, 3-5 parts of bone meal, 2-4 parts of shell powder, 3-6 parts of a Chinese herbal medicine additive, 0.5-1 part of composite vitamins, and 0.5-1 part of composite minerals, wherein the Chinese herbal medicine additive is prepared from radix astragali, radix codonopsis, poria cocos, rhizoma atractylodis macrocephalae, fructus crataegi, fructus hordei germinatus and medicated leaven; 2, pretreating the raw materials, respectively screening and removing impurities from the corn, the soybean meal and the wheat bran, and crushing the fish meal, the bone meal and the shell powder; by reasonably matching various raw materials and particularly adding the specially prepared Chinese herbal medicine additive, the immunity of the Qingyuan chickens can be improved, diseases can be reduced, and the use amount of medicines in the breeding process can be reduced.

The invention relates to the field of aquatic feed, and provides a low-temperature adhesive type aquatic feed particle composition and a preparation method thereof. The composition is composed of puffed soybean meal, flour, fish meal, low-temperature directed enzyme, microcrystalline cellulose, modified zein nanoparticles, a protein adhesive and a modified zein ethanol water solution. The preparation method comprises the following specific steps: reacting soybean protein isolate with cross-linking enzyme to generate a protein adhesive, reacting proanthocyanidins with gallic acid to generate gallic acylated proanthocyanidins, and carrying out multi-step treatment on zein. Experimental results show that the composition has excellent water resistance and oxidation resistance, and the growth efficiency and the survival rate of aquatic animals are remarkably improved. The preparation method is simple, the cost is low, heat-sensitive substances in the feed are not damaged, and an economical, efficient and nutrient-rich feed solution is provided for aquaculture.

The invention discloses a compound feed for improving the survival rate of juvenile macrobrachium rosenbergii, and belongs to the technical field of aquatic animal breeding. The fish meal, the soybean meal, the fermented soybean meal, the algae, the starch, the fat, the compound amino acid, the compound vitamin, the mineral substances and the immune polysaccharide are used as raw materials, the fish meal, the soybean meal and the fermented soybean meal are used for providing protein needed by growth of the juvenile shrimps, and the soybean meal and the fermented soybean meal can replace part of the fish meal, so that healthy growth of the juvenile shrimps is guaranteed, and meanwhile, the feed cost is reduced; the addition of algae, immune polysaccharide and compound amino acid can enhance the immunity and anti-stress ability of the juvenile shrimps, and also can improve the utilization rate of protein and other nutritional ingredients, thereby improving the feed efficiency; meanwhile, starch, fat, multivitamins and mineral substances are added to provide nutritional ingredients for healthy growth of the juvenile shrimps, and rapid growth and healthy development of the juvenile shrimps are promoted; and the survival rate of juvenile macrobrachium rosenbergii is increased through the combined action of the components.

The invention belongs to the technical field of aquaculture feed processing, and particularly relates to a processing technology of a sea cucumber intermediate culture feed. The sea cucumber intermediate breeding feed comprises fish meal, soybean protein isolate, seaweed meal, fermented soybean meal, multivitamins, a multivitamin premix and mineral salt. The processing technology comprises the following steps: firstly carrying out crushing pretreatment on the raw materials, then mixing the crushed raw materials, carrying out hardening and tempering, then carrying out twin-screw extrusion puffing to form carrier particles, carrying out low-temperature drying, then carrying out high-pressure atomization spraying technology to load the fish oil phospholipid complex, carrying out three-stage variable-temperature drying treatment, and finally carrying out cooling screening. The sea cucumber intermediate breeding feed processed by the method can be used for breeding in a transition stage from young sea cucumbers to young sea cucumbers, the survival rate of the young sea cucumbers in the breeding process is increased, and the sea cucumber intermediate breeding feed has the advantages of high nutrient retention rate and slow dissolution loss characteristic; in addition, the invention has the advantage of improving the order of micropores in the particles and the compactness of the surface layer so as to improve the physical stability of the sea cucumber intermediate culture feed.

The invention discloses a holothurian culture feed additive and a preparation method thereof, and belongs to the technical field of aquaculture. According to the technical scheme, the holothurian culture feed additive comprises the following components in percentage by mass: 45%-55% of fish meal, 2%-3% of butyric acid bacteria, 25%-30% of compound probiotics, 2%-4% of a Chinese herbal medicine extract, 8%-12% of a fermentation substrate, 10%-15% of seaweed meal, 0.5%-1% of vitamin E, 0.5%-1% of selenium yeast and the balance of a carrier, the compound probiotics are composed of lactic acid bacteria, bacillus and photosynthetic bacteria according to the mass ratio of 2: 1: 1; the Chinese herbal medicine extract is a mixture of astragalus polysaccharide and an asarum extract in a mass ratio of 3: 1; through the synergistic effect of the fish meal, the compound probiotics, the Chinese herbal medicine extract and other components, nutrition balance and intestinal flora regulation and control are achieved, the problems of slow growth, intestinal diseases and water quality pollution caused by traditional feed are effectively solved, and the sea cucumber feed has the advantages that the survival rate of sea cucumbers is increased, and the culture benefits are increased.

The invention provides a feed for relieving weaning stress of lambs and a preparation method of the feed, and belongs to the field of animal feeds. The feed disclosed by the invention is prepared from the following components in parts by weight: 35-40 parts of puffed corn, 15-20 parts of enzymolysis soybean meal, 5-8 parts of fish meal, 5-8 parts of alfalfa meal, 0.3-3 parts of an organic trace element compound, 0.1-2 parts of a vitamin compound, 3-5 parts of whey powder, 0.5-1 part of butyrin, 0.3-0.5 part of glutamine and 0.2-0.3 part of a radix astragali-spina date seed compound extract. 0.2 to 0.3 part of xylooligosaccharide-xylanase compound, 0.05 to 0.1 part of pancreatin active peptide and 0.1 to 2 parts of complex microbial inoculant. The weaning stress of the lambs is reduced through a targeted intestinal tract-immunity-nerve regulation ternary synergistic formula, the digestive system development of the weaned lambs can be obviously improved, the activity of digestive enzymes can be improved, and therefore the weight gain of the lambs is obviously improved, and the lambs stably pass through the weaning period.

The invention discloses a breeding feed for feeding mallards; to meet the needs of efficient, high-quality and healthy development of the modern mallard breeding industry; suitable for ducklings; including the following raw materials in weight ratio: 50% corn, 25% rapeseed, 8% broken rice, 7% wheat bran, 7.5% fish meal, 1% bone meal, 0.7% shell powder, 0.5% salt, 0.1% multivitamin for ducks, 0.1% metronidazole and 0.1% compound probiotics for ducks. The feeding method is as follows: when the ducklings are 3 days old, they can be fed with animal feed, and the amount of meat feed should be controlled. Generally, it is appropriate to feed about 100g of meat feed per 100 ducklings each time, and feed twice a day; it is best to chop the animal feed into meat paste and mix it into the food for the ducklings to eat. Feeding ducklings with meat feed in an appropriate amount can significantly improve the growth and development speed of the ducklings; when the ducklings are 4 to 5 days old, the breeder can feed the ducklings with green feed, and the amount of green feed should account for 15% to 20% of the total feed when the ducklings are 3 weeks old. To ensure that the green fodder is fresh, of good quality, non-toxic and free of mold, it is best to chop it before feeding, and it is best to feed it immediately after harvesting.

The invention provides color-improving high-fat compound feed for fancy carps and a preparation method of the color-improving high-fat compound feed. The color-improving high-fat compound feed for the fancy carp is prepared from the following raw materials in percentage by weight: 10-20% of fish meal, 10-30% of soybean meal, 10-22% of rapeseed meal, 10-20% of peanut meal, 5-8% of fermented cottonseed meal, 1-5% of wheat flour, 5-13% of corn starch, 1-6% of cellulose, 4-5.5% of peanut oil, 4-5.5% of palm oil, 0.03% of capsorubin, 2-4% of green algae, 0.6-2% of shrimp bran powder, 0.02-0.1% of xanthophyll and the balance of water. The compound feed is prepared from the following components in percentage by weight: 1% of calcium dihydrogen phosphate, 1% of vitamin A reinforced refined fish compound premix, 0.05-0.1% of walnut green seedcase powder, 0.015-0.1% of rhus chinensis extract and 0.02-0.1% of icariin. On the basis of meeting the nutritional requirements of the fancy carp, the fancy carp compound feed disclosed by the invention improves the fat level of the feed, and plays the roles of saving protein, reducing the feed cost and improving the coloring effect of fat-soluble carotenoids on the fancy carp in the form of high-fat feed. In addition, fat deposition of the fancy carp is regulated and controlled by adding the rhus chinensis extract, and the problems that the abdominal fat rate of the fancy carp is increased, the body is abnormal and the ornamental value is reduced when the fancy carp is fed with high-fat feed are solved.

The invention provides a methylobacterium strain JC03 for producing single-cell protein and application of the methylobacterium strain JC03 in the field of aquaculture, and belongs to the technical field of microorganisms. The methylobacterium strain JC03 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.32616. The strain is high in growth efficiency, high in thallus crude protein content, rich in amino acid spectrum, high in essential amino acid content and rich in functional components for improving the immunocompetence of aquatic animals; the single-cell protein produced by the strain can completely or partially replace fish meal protein in feeds of marine fishes such as turbot, pseudosciaena crocea, grouper and rainbow trout; vegetable protein in feed of freshwater fish such as grass carp can be completely replaced; animal and plant proteins in feeds for shrimps and crabs, such as penaeus vannamei, can be completely replaced, and animal and plant proteins in stichopus japonicus feeds can be completely replaced; the immunocompetence of fed aquatic animals can be obviously improved. The invention provides a microbial strain for efficiently converting methanol to produce single-cell protein, and the microbial strain has a wide application prospect in the field of aquaculture.

The invention discloses a lactating sow feed and a preparation method thereof, and belongs to the field of feeds. The lactating sow feed comprises the following components in parts by weight: 70-80 parts of corn; 20-27 parts of soybean meal; 25 to 33 parts of puffed soybean powder; 1-4 parts of fish meal; 3-6 parts of a premix; 1.5 to 2.2 parts of loaded butyrin; the loaded tributyrin takes pine needle meal as a carrier, and the tributyrin is loaded on the pine needle meal through chitosan and a cross-linking agent. The lactating sow feed has the effects of promoting lactation of lactating sows and improving the health condition of the lactating sows.

The present invention discloses a process for producing rapamycin by fermentation of actinomycetes, which comprises the following steps: 1. inoculating actinomycetes into a slant culture medium, culturing the slant culture medium, obtaining slant strains; 2. inoculating the slant strains into a primary seed culture medium, culturing the primary seeds, obtaining primary seeds; 3. inoculating the primary seeds into a secondary seed culture medium, culturing the secondary seeds, obtaining secondary seeds; 4. inoculating the secondary seeds into a basic fermentation culture medium, adding one or two of 0.1-0.5% fish meal and 0.01-0.05% alanine and 0.1-0.2% glucose after fermentation and culture for 48h or 96h, continuing fermentation and culture to the 10th day, and obtaining a fermentation liquid containing rapamycin. The present invention can synthesize more rapamycin by adding glucose, fish meal and / or alanine after fermentation and culture for a period of time, and the content can reach up to 1000μg / mL or more.

The invention relates to the technical field of aquaculture feed. According to the hermetia illucens protein peptide and the preparation method thereof, the hermetia illucens protein peptide prepared by adopting the technical scheme can be used as a feed protein source to replace most fish meal in feed, so that the use of the fish meal in aquatic feed is reduced, and the problems of shortage and insufficient supply of the fish meal are solved. The invention also provides application of the hermetia illucens protein peptide in preparation of functional feed for improving fish growth performance and fish muscle and meat quality. Fish functional feed prepared from the hermetia illucens protein peptide not only can significantly improve growth of rainbow trout, but also has no negative effect on oxidation resistance of animal livers and dorsal muscles, and can also improve muscle meat quality of rainbow trout.

The invention discloses a microbial fermentation feed capable of improving disease resistance of broiler chickens and a preparation method of the microbial fermentation feed, and belongs to the technical field of feed preparation. Comprising the following raw materials in parts by weight: 50-60 parts of corn flour, 20-25 parts of soybean meal, 5-8 parts of fish meal, 8-12 parts of tea seed cakes, 5-8 parts of mulberry leaves, 3-5 parts of dandelions, 0.1-0.3 part of zinc sulfate, 0.05-0.1 part of allicin and 0.5-1 part of a compound microbial agent. Wherein the compound microbial agent is prepared from lactobacillus plantarum, bacillus subtilis, candida utilis and bacillus licheniformis. The raw materials in parts by weight are mixed and fermented to obtain the microbial fermented feed capable of improving the disease resistance of the broiler chickens. According to the microbial fermentation feed disclosed by the invention, low-cost natural raw materials (such as tea seed cakes, mulberry leaves and dandelions) and the compound microbial agent are comprehensively utilized, so that the disease resistance of broilers can be comprehensively improved on the basis of reducing the cost; besides, the compound microbial agent can be fully fermented, the content of functional substances such as short-chain fatty acid (SCFAs) and antibacterial peptide is increased, the intestinal microecology can be effectively regulated and controlled, the immune function can be effectively enhanced, and the survival rate and disease resistance of the broiler chickens are improved.

The invention provides a feed for increasing dark red body color of goldfish and a preparation method of the feed, and relates to the field of fish feeds. The feed comprises the following raw materials in percentage by mass: 1-20% of fish meal, 5-20% of euphausia superba powder, 5-30% of corn flour, 2-20% of chrysanthemum powder, 10-30% of flour, 10-20% of vital gluten, 1-5% of bee pollen, 1-10% of carrot powder, 3-20% of chili meal, 0.1-3% of astaxanthin, 1-10% of spirulina, 1-10% of haematococcus pluvialis, 1-10% of phaffia rubra, 1-8% of fish oil and 0.1-3% of choline chloride. 0.01-3% of composite vitamins and 0.01-5% of composite minerals. After the feed is fed for a long time, the red brilliance and the brightness of the body color of the dark red goldfish can be improved, and the dark red goldfish can present a more beautiful swimming posture and a ruddy color.

The invention provides crab feed capable of improving the quality of crab cream. The feed is prepared from the following raw materials in parts by weight: 15-25 parts of white fish meal, 10-15 parts of fermented soybean meal, 50-60 parts of squid visceral meal, 45-50 parts of krill meal, 25-30 parts of beer yeast, 200-220 parts of high gluten flour, 45-50 parts of wheat bran, 10-20 parts of soybean lecithin oil, 5-10 parts of a vitamin premix special for crabs and 5-10 parts of a mineral premix special for crabs. According to the crab feed capable of improving the quality of the crab cream, on the basis of ensuring the ingestion and intestinal health of crabs, conditions are created for efficient nutrient absorption and utilization, then gonad development and flavor substance accumulation are driven through key substances, meanwhile, a three-dimensional anti-oxidation and immune protection system runs through all the time, the body health is guaranteed, and the crab feed has the effects of improving the crab cream quality and improving the crab cream quality. The method has the advantages of simple operation, stable color and flavor of the crab cream, sufficient energy supply in the whole process, and synergistic operation of all the systems, so that the disease resistance and survival rate of crabs are improved, and the accumulated nutrient substances are efficiently converted into the plump degree, delicious flavor and attractive color of the crab cream.

The invention discloses a method for preparing fermented soybean meal through synergistic fermentation of saccharomyces cerevisiae FNFHSc18 and bacillus subtilis FNFHBS08 and application of the fermented soybean meal, combined fermentation of the saccharomyces cerevisiae FNFHSc18 and the bacillus subtilis FNFHBS08 is utilized, the method has the advantages of being short in fermentation period, high in efficiency and low in cost, the prepared fermented soybean meal is rich in beta-carotene and astaxanthin, and the content of the beta-carotene and the astaxanthin is increased. The contents of crude protein and soluble protein are obviously improved, anti-nutritional factors such as antigen protein, oligosaccharide and urease are greatly reduced, and the nutritional value of the soybean meal is comprehensively improved; the invention also provides an application of the fermented soybean meal feed in breeding, and the fermented soybean meal is used for replacing 30% of fish meal protein, so that the final weight, the weight gain rate and the specific growth rate of the largemouth bass can be obviously improved, and the growth performance of bred animals is enhanced.

The invention relates to the field of aquaculture feeds, in particular to a metamorphosis-stage giant spiny frog tadpole feed and a use method thereof. The metamorphosis-stage giant spiny frog tadpole feed consists of the following components in percentage by weight: 25-35% of fish meal, 25-35% of yellow mealworm powder, 15-25% of soybean meal, 5-15% of wheat flour, 6-10% of yeast powder, 1-3% of lecithin and 0.4-0.6% of compound vitamins. When the giant spiny frog tadpole feed prepared by the method is used for feeding giant spiny frog tadpoles in the metamorphosis period, the nutritional requirements of the giant spiny frog tadpoles in the metamorphosis period can be met due to the high protein content, meanwhile, the survival rate of the tadpoles can be guaranteed on the premise that high protein intake is kept, and meanwhile the metamorphosis rate of the tadpoles is increased.

The invention discloses a low-fish-meal compound feed for improving the muscle fiber density and muscle texture performance of pelteobagrus fulvidraco and application of the low-fish-meal compound feed, and belongs to the field of feeds. After the mixed plant protein source (corn protein powder, rapeseed meal and soybean meal) is used for replacing 50% of fish meal, the growth performance, muscle fiber density and texture performance (hardness, elasticity and rupture strength) of the pelteobagrus fulvidraco have significant negative changes; by adding 0.6% of lysine, the adverse effects of the low-fish-meal feed on the muscle fiber density and the muscle texture performance of the pelteobagrus fulvidraco can be remarkably improved, namely, high muscle tenderness, elasticity and rupture strength can be kept, and the low dorsal muscle fiber density caused by low fish meal can be recovered; however, when the addition amount of the lysine exceeds 0.6%, the lysine has a significant negative effect on the growth of the pelteobagrus fulvidraco, and the influence of the lysine on the muscle growth and texture performance of the pelteobagrus fulvidraco is related to the regulation of ERK1 / 2 signal activity.

The present invention discloses a feed additive for reducing heavy metal deposition in pig bodies and a preparation method thereof, and relates to the technical field of feeds, the feed additive is prepared from the following components: 10-20 parts of corn gluten meal, 10-20 parts of highland barley powder, 5-15 parts of compound microorganisms, 4-12 parts of whey powder, 4-8 parts of microalgae powder, 2-6 parts of fish meal, 4-12 parts of active additives, and 0.5-5 parts of vitamin C; the active additive is prepared by mixing a Chinese herbal medicine extract and modified activated carbon; through the synergistic effect of multiple functions, the feed additive disclosed by the invention can significantly reduce heavy metal enrichment of target organs in pig bodies, avoid loss of feed nutrient elements, synchronously improve the stress resistance and growth efficiency of pigs, reduce the safety risk of meat products from the source, and provide key technical support for green and healthy transformation of animal husbandry.

The invention discloses an aquatic product breeding feed capable of improving flavor and a preparation method thereof, and particularly relates to the technical field of breeding feeds, the feed comprises fish meal, soybean meal, soybean protein concentrate, shrimp meal, chicken meal, wheat flour, cuttlefish paste, phospholipid, grease, mineral substances, vitamins, lettuce polyphenol, an antioxidant, a mildew preventive and the like. Wherein the lettuce polyphenol is a key functional component. The preparation method comprises the following steps: pretreating the raw materials, mixing step by step, adding grease by spraying, tempering, granulating, drying, screening, spraying the antioxidant and the like. The lettuce polyphenol regulates and controls an mTOR signal channel to promote flavor amino acid deposition and inhibit protein degradation, meanwhile, the intestinal microecology is improved, the antioxidant capacity and digestive enzyme activity are enhanced, and the content of flavor substances such as glutamic acid and glycine in aquatic products is remarkably increased. The method is suitable for culturing various aquatic products, and can effectively improve the flavor and quality of the cultured aquatic products.

The invention discloses a low-protein feed containing micropterus salmoides polypeptide and application of the low-protein feed. The amino acid sequence of the micropterus salmoides polypeptide is as shown in SEQ ID NO. 1. The micropterus salmoides polypeptide MSNP combined fermented soybean meal is added into the feed, so that the capability of the micropterus salmoides for digesting the feed and absorbing and utilizing nutrient substances is improved, the growth and weight increment of the micropterus salmoides are promoted, the total protein content of the feed and the addition amount of fish meal in the feed are reduced, the feed cost is saved, the culture benefit is improved, and the economic benefit is increased. The pollution pressure of a culture water body is relieved, and the method has wide popularization and application values in the largemouth bass culture industry.

The present invention relates to a precise lactation feed for lactating sows, and 100 kg of the feed product comprises the following raw materials by weight: 20 to 28 kg of soybean meal, 2 to 5 kg of fish meal, 2 to 5 kg of MCT microcapsules, 0.2 to 0.4 kg of rumen protected methionine, 0.1 to 0.2 kg of rumen protected tryptophan, 1.5 to 2.5 kg of inulin, 1 to 2 kg of sodium lignin sulfonate, 0.01 to 0.03 kg of a fenugreek seed extract, 1.2 to 1.8 kg of sn-2 palmitate, 0.4 to 0.6 kg of alpha-ketoglutaric acid, 0.08 to 0.12 kg of glycine iron, and the balance of water. The feed is prepared from the following raw materials by weight: 0.15-0.25 kg of zinc methionine, 4-8 kg of wheat bran, 1.2-1.8 kg of a calcium propionate solution, 2-3 kg of lactic acid bacteria fermentation liquor, 0.2-0.4 kg of a rosemary extract and the balance of corn, wherein the total weight of the raw materials is 100 kg. The feed is a precise nutrition regulation feed formula for the sows in the lactation period, and milk yield increase, piglet weaning performance optimization and sow body condition protection are achieved through multi-dimensional nutrition intervention.