548 results about "Anti nutritional" patented technology

The invention discloses a complex enzyme preparation for feeding piglets. The complex enzyme preparation for feeding piglets comprises the following seven enzymes: acid protease, amylase, xylanase, beta-glucanase, cellulase, pectinase and phytase; and the enzymatic activity ratio of the seven enzymes is 1: 1: (8-10): (3.3-4): 1: (0.5-0.55): (0-0.02). By applying the complex enzyme preparation disclosed by the invention, various anti-nutritional factors in feed can be degraded, the viscosity of chyme in an intestinal tract can be reduced, and the metabolic energy of the feed can be improved; the protein and starch digestibility of the piglets can be improved; excessive reproduction of harmful microorganisms in the intestinal tract can be reduced, damage to the intestinal wall can be reduced, and the microecological balance of the intestinal tract can be regulated; the survival rate and disease resistance of the piglets can be improved, the diarrhea rate can be reduced, and the overall uniformity is improved; and the weight gaining of the piglets can be promoted, and the cultivation cost is reduced.

The invention relates to a preparation method of protein feed in oilseed dregs. Oilseed dregs are used as a main material in which accessories are added and mixed, and the mixed material is preprocessed and mixed with water; seed liquid resurrection is carried out on the sieved strain of high-efficient degradation anti-nutritional factors; in the form of single strain or combination, 2% to 15% of general inoculum concentration of the strains by weight are simultaneously connected with mixture solid fermentation medium after preprocessing on standing at the temperature of 25 to 45 DEG C, mixed and fermented for 24 to 96 hours; after fermentation, the finished products are obtained after drying and dehydration; the raw materials have the following proportions by weight: 40% to 60% of oilseed dregs, 0 to 10% of accessories and 40% to 50% of water. According to the composition, characteristics and nutrient advantages of anti-nutrient substance in oilseed dregs, the method not only can efficiently eliminate anti- nutritional factors in the dregs but also can improve the oligopeptide content and simultaneously maintains higher protein content so that the quality of protein feed can be further advanced and improved.

The invention provides an efficient pig-feed complex enzyme preparation with enzyme protectant. The efficient pig-feed complex enzyme preparation with enzyme protectant is capable of promoting absorption of nutrients in the feed by pigs to increase feed utilization rate by degrading antinutritional factors, such as beta-glucan, phytic acid and pectin, biomacromolecules and the like. By adding the protectant, inactivity rate in enzymes can be reduced, effective time can be prolonged, and the effects of the enzyme preparation are more evident and longer. The efficient pig-feed complex enzyme preparation with enzyme protectant is high in feed conversion rate, feed-to-grain ratio can be lowered by more than 19%, growth speed of pigs is increased by more than 23%, and enzyme activity is kept in 18 months and can be kept by more than 90%.

The invention discloses a complex enzyme preparation for a growing and fattening pig feed. The complex enzyme preparation for the growing and fattening pig feed comprises the following eight enzymes: acid protease, amylase, beta-mannase, xylanase, beta-dextranase, cellulase, pectinase and phytase; and the enzyme activity ratio of the eight enzymes is sequentially 1: (0.8-14.5): (0.19-0.3): (33.7-35): (25-30): (3.2-3.5): (0.19-2.0): (0-0.025). The complex enzyme preparation can degrade various anti-nutritional factors in the feed, reduce the chime viscosity of the intestinal tract, improve the metabolic energy of the feed, improve the digestion rate of growing and fattening pigs on protein and starch, reduce the nutrient content of the chime entering the intestinal tract, effectively inhibit the reproduction of harmful microbes in the intestinal tract, reconcile the micro-ecological balance of the intestinal tract, promote the health of the pigs, improve the average daily gain of the growing and fattening pigs, reduce the feed-meat ratio, shorten the maintenance period and improve the economic benefit.

Disclosed are fermented soybean protein products with enhanced enzyme productivity and methods for producing them by solid fermentation using Bacillus subtilis GR-101 and additionally Aspergillus oryzae GB-107 (KCTC 10258BP). A novel Bacillus subtilis GR-101 strain (KCCM 10673P), which has excellent protease productivity in soybean meal, is also disclosed. Fermentation using Bacillus subtilis GR-101 strain (KCCM 10673P) producing protease combined with Aspergillus oryzae GB-107 (KCTC 10258BP) having amylase activity can remove trypsin inhibitors known as anti-nutritional factors and thus can provide soybean peptides with high digestion ratio and excellent enzyme activities. Feed comprising the soybean peptides as active component and capable of improving productivity of livestock and food for human comprising the soybean peptides supply is further disclosed.

The invention relates to a method for biologically improving oilseed residue, which adopts the oilseed residue as main material. The method has the following characteristics that: in the form of single bacterium or compound, a selected bacterial strain which can efficiently degrade anti-nutritional factors is produced into seed liquid, which is dissolved in water according to a total inoculation amount accounting for 0.01 percent to 5 percent of the weight of the oilseed residue, the weight ratio of the water to the oilseed residue is 2:3 to 3:2, fermentation adjunct is added, the weight of the fermentation adjunct is 0.01 percent to 10 percent of the weight of the oilseed residue, nutritive additive is added, the weight of the nutritive additive is 0 percent to 10 percent of the weight of the oilseed residue, the oilseed residue is then added, the uniformly mixed base material is transferred into a fermenting tank, and is kept still to ferment under the temperature of 5 DEG C to 45 DEG C for 24 to 96 hours, and after fermentation, the base material is dried and dehydrated. The fermentation adjunct used in the process of fermentation can promote the degradation of the anti-nutritional factors and reduce the inoculation quantity of the bacterial strain, the production cost is reduced, the technique is simple and convenient, and thereby the equipment investment is reduced, which is favorable for popularization and application.

The invention provides a complex bacterium for bean pulp fermentation. The complex bacterium is composed of bacillus subtilis, bacillus coagulans, aspergillus niger, aspergillus oryzae, lactobacillus plantarum and saccharomyces cerevisiae. The complex bacterium provided by the invention is obtained through repeated scientific experiment and reasonable combination based on physiological metabolism feature of the microorganism, the complex bacterium is vigorous in growth metabolism, is capable of secreting a plurality of enzymes, acids and other metabolites, and is capable of efficiently decomposing macromolecule protein, anti-nutritional factors and sensitization factors in the bean pulp, obviously increasing content of soluble protein, small peptide, organic acid, protease and vitamin and the number of probiotics and antibacterial peptide, improving the digestion utilization rate, inhibiting the growth of pathogenic bacteria and reducing the use of antibiotic; and meanwhile, the complex bacterium has acid fragrance of fermentation and is good in food attractant effect. The bacteria strains forming the complex bacterium are included in a feed additive variety catalogue (2013) issued by the department of agriculture, the complex bacterium is safe and reliable, and can be directly used for the industrial production for the bean pulp fermentation.

The invention discloses a microbiological feed additive for replacing antibiotics, mainly comprising bacillus subtilis, saccharomyces cerevisiae, aspergillus niger, aspergillus oryzae and the like. The preparation method of the microbiological feed additive comprises the following steps: parent species of all strains are prepared by liquid state fermentation, production species are prepared by carrying out solid state fermentation on the parent species, the strain is obtained by carrying out further solid state fermentation on the production species, and the strains are mixed according to a certain proportion to obtain the microbiological feed additive. The microbiological feed additive can improve the nonspecific immunity of animals, enhance the anti-stress capability of an organism, activate the growth potential of the animals, improve the production performance comprehensively, solve the problems of low quality of products, loss of flavor, diarrhea of piglets, constipation of sows,shapeless feces of chickens and ducks, more anti-nutritional factors of feedstuff materials and low digestion and utilization in a package manner, and provide a low-cost, simple and practical scheme for replacing the antibiotics, an enzyme preparation, arsenical preparations and probiotics.

The present invention discloses a method of preparing a bioactive feed by a step-by-step fermentation and belongs to the technical field of microbial fermentation. The method solves problems that existing bioactive feeds are high in content of anti-nutritional factors, low in protein content and high in production costs. The method comprises the following steps: impurities of soybean meal are removed and the impurity removed soybean meal is crushed; the crushed soybean meal is soaked using distilled water; the soybean meal and a soybean molasses dilution solution are respectively sterilized; bacillus subtilis, yeasts and lactic acid bacteria are respectively inoculated into soybean molasses dilution solution mediums respectively; the bacillus subtilis is inoculated into the sterilized soybean meal and a preliminary anaerobic fermentation is conducted; after the yeasts and lactic acid bacteria are inoculated into the preliminarily fermented soybean meal, an anaerobic fermentation is conducted; and after the fermentation, the soybean meal is subjected to a low temperature drying to be a moisture content of less than or equal to 12%, and the bioactive feed is obtained. The method is suitable for the preparation of the bioactive feed by the step-by-step fermentation.

The invention provides a novel production process of fermented soybean meal by synchronous solid fermentation and enzymolysis. The process increases feeding value of the soybean meal by synchronization of probiotic fermentation and protease enzymolysis and mainly includes: high molecular weight protein is degraded into small molecular weight protein, polypeptide, small peptide and the like easy to absorb by animals by enzymolysis of an external added protease and microbial secretion composite enzyme system; and antinutritional factors in the soybean meal are removed by microbial fermentation, content of organic acids and microbes in the fermented soybean meal is increased, and accordingly feeding value of the soybean meal is increased. The fermented soybean meal produced by the production process is rich in various digestive enzymes, most of the antinutritional factors in the soybean meal are degraded, content of soluble protein in the soybean meal is increased, a certain amount of organic acids and special flavor is added, the soybean meal has high feeding value and is applicable to livestock and poultry feed and aquatic feed, and the soybean meal serving as the aquatic feed is capable of partially replacing fish meal in application.

The invention relates to a composite microorganism ferment material which is characterized in that production strains select production strains of which the growth rate is quick and the enzyme production quantity is large by combining with through ray inducement and production performance detection. The processing technique employs innovative symbiosis compatibility design of probiotics and multi-compound fermentation technology, the number of the live probiotics in the products achieves five billion per gram, and the products simultaneously contain polyoses, polypeptide, organized enzyme, organic acid, phytosterin, triterpennoids saponin and the like active metabolite. Specific enzyme producing inducer is added to growth medium, the latest single creature venting valve is employed on the package, which not only can be added to complete feed of livestock or poultry but also can be directly added into feedstuff, thereby effectively promoting breakdown and absorption of giant molecule nutrient substance in the intestinal canal of livestock or poultry, thereby eliminating the action of anti-nutritional factors in the feedstuff, remarkably increasing utilization ratio of the feedstuff, and reducing the feeding cost.

The invention belongs to the technical field of feed and microbial fermentation, and particularly relates to a preparation method of a sea-tangle, fish meal, brown sugar and ormosia fermented feed for lactating sows. The method comprises the steps of: mixing sea-tangle powder, the fish meal, the brown sugar and ormosia powder in proportion with water to prepare concentrated serous liquid; heating and soaking, disinfecting and cooling, introducing protease generating bacillus subtilis, brewer's yeast and lactic acid bacteria to ferment; then mixing grain raw materials, such as corn powder, smashed rice powder, bean pulp powder, expanded soybean meal, bran, DDGS (Distillers Dried Grains with Soluble), lipid, premix in proportion; dying after fermentation to prepare the sea-tangle, fish meal, brown sugar and ormosia fermented feed for the lactating sows. The feed is rich in peptide, lactic acid and probiotics, has the characteristics of abundant and balanced amino acids, high nutrition, easy for digestion, good taste, low content of anti-nutritional factors and the like, and the lactating sows can be remarkably stimulated to lactate.

The invention discloses a prescription for preparing an energy and protein feeding stuff raw material full of omega-3 fatty acid by using rubber seeds and a method thereof. The weight percentages of the omega-3 energy and protein feeding stuff raw materials are as follows: rubber seeds 20-80%, bean pulp, corn, rapeseed cake (pulp), cottonseed cake (pulp), rice bran and wheat bran or any combination thereof 20-80%. The preparation method is as follows: the exuviated and dried rubber seeds are mixed with various ingredients evenly and puffed, and then finished product is gained. By the invention, the nutrient components such as omega-3 fatty acid, energy and protein and the like contained in the rubber seeds can be used fully, meanwhile, anti-nutritional components such as hydrocyanic acid and the like contained in the rubber seeds are removed, the energy and protein raw materials full of omega-3 fatty acid widely accepted by the feeding stuff industry and applicable to various birds, livestock and fish feeding stuff are processed. The price of the energy and protein raw material is low.

The present invention discloses a feed micro-ecological preparation, an anti-nutritional substance-free feed and a preparation method thereof, and belongs to the technical field of feed. The feed micro-ecological preparation is prepared by fermenting the following raw materials in parts by weight: 1.0-1.2 parts of Saccharomyces cerevisiae, 0.2-0.6 part of Enterococcus faecalis, 1.5-2.0 parts of Bacillus subtilis, 0.2-0.6 part of Bacillus coagulans, 0.1-0.15 part of Bacillus licheniformis, 0.1-0.3 part of Bacillus lentus, 0.2-0.5 part of Clostridium butyricum and 993.05-995.15 parts of liquid medium. After the feed micro-ecological preparation is mixed with feed raw materials, enzymes produced in the process of microbial strain fermentation can decompose anti-nutritional substances in feed and increase the feed utilization rate; at the same time, microbial strains also have effects in improving animal intestinal environment, maintaining intestinal flora balance, inhibiting the growth of pathogenic bacteria, and improving animal immunity.

The invention discloses a preparation method of a lactating sow feed. The preparation method comprises the following specific steps: soaking soybeans in water, grinding the soaked soybeans into thick liquid by a grinding miller, raising the temperature, cooking and cooling to prepare soybean milk dregs; mixing the soybean milk dregs, alfalfa meal, corn flour, brown sugar, a composite bacterial liquid and a compound enzyme according to a ratio; carrying out solid fermentation and enzymolysis, and then drying the substance to obtain a soybean-grass fermentation material; uniformly mixing the soybean-grass fermentation material, corn, broken rice, bean pulp, fish meal, emulsified oil powder, helianthus tuberosus powder, seaweed, composite Chinese herbal medicines and 4% of premix sold in the market, so as to obtain the lactating sow feed capable of calling food, promoting lactation and resisting constipation. The lactating sow feed disclosed by the invention is rich in emulsified fat, yeast protein, active oligopeptide, short-chain dextrin, glucose, soybean and helianthus tuberosus oligosaccharides, lactic acid, probiotics and unstated prolactin, good in palatability, balanced in amino acid, high in nutrition, low in probability of digestion, low in anti-nutritional factor content, and capable of obviously promoting sow ingestion, simulating lactation and preventing constipation.

The invention provides a bean pulp rainbow trout parr compound feed and a preparation method thereof. Every 100kg of bean pulp rainbow trout parr compound feed is manufactured by 10 to 15kg of steam fish meal, 45 to 55kg of full fat expanded soybean, 10 to 15kg of corn protein powder, 2 to 5kg of isolate soya protein, 3 to 5kg of beer yeast, 0.5 to 1.0kg of Squid paste, 0.5 to 1.0kg of betaine, 3 to 6kg fo flour, 1.5 to 2.5kg of soybean lecithin, 2 to 3kg of fish oil, 2 to 3kg of soybean oil, 0.3 to 0.5kg of methionine, 0.1 to 0.3kg of lysine, 0.3 to 0.5kg of Choline Chloride, 0.5 to 1.0kg of composite vitamin, 0.5 to 1.0kg of composite mineral salt and water. The invention aims at the digesting physiological characteristic during the parr period of the rainbow trout and solves the balancing problem of amino acid by optimizing and adjusting the prescription of the feed, and solves the problems of anti-nutritional factors and palatability by comprehensively using enzyme preparation and feeding promoting agent. The feed of the invention has the advantages of remarkably promoting the quick growth of the rainbow trout parr, improving the surviving rate of the rainbow trout parr, improving the digesting and absorbing rates of the rainbow trout parr on the feed, reducing the drainage of P and N, reducing the culturing cost, and the like.

The invention discloses a method for producing fermented feed containing probiotics for pigs by using microbial fermentation, comprising the following steps: (1) cultivating aerobic fungi for producing strains; (2) cultivating bacillus producing lactic acid; and (3) solid-state cultivating: 1) thoroughly mixing soya bean dregs, cotton dregs, vinegar residue with wheat bran and / or rice bran and adding water to prepare a mixture; 2) inoculating the producing strains prepared in the step (1) and the step (2) into the mixture; and 3) cultivating by stacking or bag stacking to obtain an antibiotics-free fermented feed. The method of the invention is simple and convenient. The products have stable properties and are easy for large-scale producing. Using the method to prepare the feed for the pigs can effectively reduce anti nutritional factors in the feed and the method plays a role in the gossypol reduction of the cotton dregs, thereby decreasing the input amount of inorganic phosphorus to the feed, increasing the utilization of organic phosphorus in the raw material of the feed, accelerating the absorption of nutrients in the feed for pigs and reducing the environment pollution due to the feed.

The invention relates to an exogenous composite enzyme preparation special for feed industry and a preparation method and application thereof. The composite enzyme preparation comprises five kinds of water-soluble non-starch polysaccharide enzyme and phytase, namely xylanase, dextranase, mannose, cellulase and pectase. The activity mixture ratio of the contained water-soluble non-starch polysaccharide enzyme to the contained phytase is designed according to the kinds and the contents of the non-starch polysaccharide and the phytase in raw materials of a common feed, the synergistic effect between two kinds of the enzymes can be fully achieved, and the most scientific and economic mixture ratio is provided. The exogenous composite enzyme preparation can improve the degradation efficiency of non-starch polysaccharide anti-nutritional factors and phytic acid in the feed, remove the anti-nutritional effect thereof, improve the absorption and conversion rate of the feed and the utilization rate of phosphorus in the feed, substantially reduce the dosage of inorganic phosphorus and the production cost, bring considerable economic benefit to feed processing enterprises and farmers, greatly reduce the contents of nitrogen and phosphorus in animal excrement so as to reduce environmental pollution, and has remarkable social benefit.

The invention discloses an antibiotic free, hormone free and harmful additive free biological mixed feed capable of improving quality of meat and suitable for feeding of various meat animals, and a production method thereof. The biological mixed feed comprises the following materials, by weight: 8-10% of biological fermentation cotton seed meal, 3-5% of polypeptide biological blood powder, 80-84% of mixed forage powder, 3-5% of feed additive and 1-5% of plant oil. According to exogenous enzyme and microbial fermentation, macro-molecule protein raw materials are decomposed into polypeptides and small peptides, so as to degrade anti-nutritional factors like non-starch polysaccharides in the forage and increase utilization rate of the forage; meanwhile, abundant B-group vitamin, free amino acid and organic acidity are generated during a fermentation process to promote deposition of flavor amino acid, inosinic acid and unsaturated fatty acid in muscle, so as to enhance quality of meat. Freshwater fish, fryers and growing and fattening pigs fed by the biological mixed feed for animals of the invention have characteristics of fast growth speed, and elastic, chewy, delicious and strongly fragrant fish meat, chicken and pork. The method of the invention is simple, requires no special equipment and is suitable for industrialized production.

The present invention discloses a fermented liquid suckling pig feed and a preparation method thereof. The preparation method comprises the following steps: conducting expanding culture of yeast and lactic acid bacteria respectively to obtain the seed yeast solution and the seed lactic acid bacteria solution; smashing the plant raw materials, and then adding the seed yeast solution, seed lactic acid bacteria solution and water into the smashed materials to conduct a mixed fermentation and obtain a liquid mixed fermentation product; firstly smashing the non-fermented raw materials, then adding the smashed non-fermented raw materials into the liquid mixed fermentation product, and mixing evenly to obtain the suckling pig feed. The fermented liquid suckling pig feed does not add any antibiotics, is rich in glucose, lactic acid, small peptides, yeast culture product, amino acids, vitamins and minerals, and has the characteristics of having balanced nutrition, good palatability, easy digestion, good absorption and low anti-nutritional factors. The suckling pig feed can enable the suckling pig to have a smooth transition from being fed by breast milk to being fed by liquid feed, thus achieving the effect of reducing the suckling pig diarrhea rate and improving the suckling pig survival rate.

The invention discloses a method for producing feed with rich peptide and rich prebiotics by fermenting high-temperature soybean meal, and relates to the technical field of farm products bioprocess. A stain of high-yield protease bacillus subtilis which is sorted from conventional Jiangxi fermented food is used for being matched with brewing yeast and lactobacillus plantarum to carry out the mixed solid fermentation on high-temperature soybean meal, slant activation and liquid enlarge cultivation are carried out, aerobic fermentation is carried out for single inoculation, anaerobic fermentation is carried out for the mixed inoculation, then the high-temperature soybean meal is dried at the temperature of 60 DEG C to obtain a fermented soybean meal feed product in which with protein nutrients are rich, antinutritional factors are passivated almost, the palatability is improved and the bioactivity is high. The method has the advantages that the constitution of the protein and the antinutritional factors of the high-temperature soybean meal fermented product is further improved, the palatability of the fermented product is improved, and the fermented product has the characteristics of rich nutrients, low resistance and palatability.

The invention utilizes a microbial fermentation technology to improve the forage nutritional value of the cottonseed meal, so as to improve the forage quality of the cottonseed meal, increase the addition proportion in the forage and realize the promotion of the protein nutritional value and the feeding value of the cottonseed meal, aiming at the disadvantages that cottonseed meal is rich in antinutritional factors of free gossypol, cellulose, oligosaccharide, phytic acid and the like, the protein quality is relatively poor and the content of essential amino acids of methionine and the like is low and unbalanced, so that the large-scale forage of cottonseed meal is restricted. The method for improving forage nutritional value of cottonseed meal through the microbial fermentation adopts the technology of 'composite enzymatic hydrolysis and multi-strain three-step solid-state fermentation', so as to prepare the fermented cottonseed meal product that is high in the free gossypol, cellulose degradation degree and the protein content; the cottonseed meal product is rich in nutritional ingredients of probiotics, vitamins, enzyme, amino acid, short peptide, high-grade protein and the like; the method for improving the forage nutritional value of cottonseed meal through the microbial fermentation has the advantages of prompting growth and development, improving the utilization ratio of the forage, enhancing immunization, improving intestinal micro ecology, preventing diseases and the like. The method for improving forage nutritional value of cottonseed meal through the microbial fermentation adopts the solid-state fermentation; the manufacturing technology is simple; the energy consumption is low; zero environmental pollution is generated; and the investment is small. Therefore, mass production is easy.

The invention discloses a pig complete fermented feed preparation method and an application thereof. A pig complete fermented feed comprises the following main components: 60-70.5% of corn, 13-27% of soybean meal and the balance of wheat bran. The strain is composed of mixed lactic acid bacteria, saccharomyces and bacillus according to a ratio of (2-3):(1):(1). The fermented feed is prepared by performing solid state fermentation on a low-nutrition complete feed, molasses and multiple strains, can be used for feeding and nursing, pigs at multiple phases such as growth and pregnancy. The feed combines multi-phase physiological characteristics of pigs and aims at problems of component, nutrition and production of the pig feed at a current specific phase, the pig complete fermented feed can be prepared by using combination fermentation of the specific strains, nutrition value of the feed with low cost is increased, mycotoxin and antinutritional factors are reduced, usage of veterinary drug is reduced, culture cost is reduced, and animal health and production performance can be increased.

The invention discloses an aspergillus niger strain and use thereof. The aspergillus niger strain is aspergillus niger A46CGMCC No.3084. The strain can produce xylanase, cellulose, pectinase, amylase, beta-mannase and the like with high yield at the same time of xylanase, cellulose, pectinase, amylase, beta-mannase and the like at the same time, as well as an enzyme complex for feeding animals, wherein the optimum pH for active enzymes in the enzyme complex is between 4 and 6 which meets the requirements of the gastrointestinal tracts of the animals. The enzyme complex for feed use can be widely used in livestock feed to reduce anti-nutritional factors, improve the digestibility, create excellent economic benefits and promote ecological environment protection and the sound development of the livestock industry.

The invention provides a bean pulp rainbow trout parr compound feed and a preparation method thereof. Every 100kg of bean pulp rainbow trout parr compound feed is manufactured by 6 to 12kg of steam fish meal, 50 to 60kg of expanded bean pulp, 10 to 15kg of corn protein powder, 3 to 5kg of beer yeast, 0.5 to 1.0kg of Squid paste, 0.5 to 1.0kg of betaine, 2 to 6kg fo flour, 1.5 to 2.5kg of soybean lecithin, 5 to 6kg of fish oil, 5 to 63kg of soybean oil, 0.3 to 0.5kg of methionine, 0.1 to 0.3kg of lysine, 0.3 to 0.5kg of Choline Chloride, 0.5 to 1.0kg of composite vitamin, 0.5 to 1.0kg of composite mineral salt and water. The invention aims at the digesting physiological characteristic during the parr period of the rainbow trout and solves the balancing problem of amino acid by optimizing and adjusting the prescription of the feed, and solves the problems of anti-nutritional factors and palatability by comprehensively using enzyme preparation and feeding promoting agent. The invention selects the feed materials with high biological availability, and has the advantages of remarkably promoting the quick growth of the rainbow trout parr, improving the surviving rate of culturing, improving the digesting and absorbing rates of the rainbow trout parr on the feed, reducing the drainage of P and N, reducing the culturing cost, and the like. The materials used by the compound feed of the invention have the advantages of reliable source, stable quality and low cost.

The present invention is one kind of small peptide feed additive with rich small peptide and probiotics matter and no anti-nutrilite. The small peptide feed additive is prepared with soybean residue, wheat bran, corn protein powder, corn starch, alcohol dreg, tropina powder, waste molasses and / or starch, and through inoculating probiotics seed and solid fermentation to eliminate anti-nutrilite and generate small peptide, lactic acid and other probiotics matters. It has total small peptide content not less than 15.0 wt%, amino nitrogen content 0.5-1.0 %, total nitrogen content not less than 8.0 %, lactic acid content not less than 3.0 %, water not more than 12.0 % and molecular weight smaller than 20,000 Dalton. The small peptide feed additive can raise the speed of synthesizing protein in animal body, appetize, raise body's immunity, promote the absorption of animal body on mineral elements, regulate physiological activity and improve nutritious condition.

The invention relates to a microorganism preparation used for eliminating the effect of anti-nutritional factors and is characterized by consisting of the following materials by weight percentage: 28 to 35 percent of bacillus subtilis, 45 to 53 percent of lactobacillus plantarum and 12 to 27 percent of yeast of brewer; a preparation method of the microorganism preparation comprises the following steps: the production of the strain is produced by combining the ray induction and production performance test, the production strain with high yield and large enzyme production are screened, the production technique adopts the technology of liquid single culture and solid composite culture, product accelerators are added into the culture medium so as to lead the product to be rich in active metabolites such as beneficial living bacterium, enzyme, peptide, polysaccharide and amino acids, and the like; after the feed material and complete feed are added with the microorganism preparation, the effect of anti-nutritional factors to the nutrient components in the feed can be eliminated greatly, the palatability of the feed is improved, feed intake is improved, stress resistance and immunity of the cultured animals is enhanced, group uniformity is improved, the growing speed and feed utilization can be improved and the culture cost can be reduced.

The invention relates to a method for producing biological feed by solid fermentation of microorganisms, belonging to the technical field of biological feed production by fermentation. The production method is characterized by 1. preparing, diluting and activating fermentation liquor; 2. sterilizing raw materials; 3. preparing fermented feeds. The method has the advantages of low investment, quick returns and broad market prospect; due to changing waste residues into valuables and utilizing wastes, the method can enjoy national and local policy support and tax preference. Not only the amino acid which is easily deficient in general feeds can be made complete, but also the biological feed contains abundant nutritions and active substances such as probiotics, which can replace antibiotics. The biological feed contains more than 20 kinds of amino acid, multiplex vitamin and trace elements, and contains oligose, citric acid, fruit acid and other organic acid. Meanwhile, the method helps lower the content of pesticide residue and anti-nutritional factor tannin obviously and rapidly convert the nutritions of the raw fruit and vegetable residues to reach the effect of enhancing digestion, absorption and utilization.

The invention discloses a large-grain milk replacer of which the grain diameter is 10-15 mm and a preparing method thereof and belongs to the technical field of feed processing. In particular, fermented bean pulps, and high-temperature amylase and a culture thereof are added to the large-grain milk replacer, the fermented bean pulps are prepared through the fermentation of a mixed bacterial solution of bacillus subtilis CICC10063 and bacillus subtilis CGMCC No.7926, and the high-temperature amylase is prepared through the fermentation of the bacillus subtilis CGMCC No.7926. The scientific and reasonable formula of the feed not only can meet the nutritional requirements of piglets, but also can enhance the palatability of the feed. Pre-treatment is carried out on account of the respective characteristics of the raw materials, not only are the digestion and absorption rates increased, and anti-nutritional factors are also reduced. The addition of the exogenous high-temperature amylase and beneficial bacteria is favorable to promoting the rapid growth of sucking pigs in ablactation early periods, and can reduce harmful effects which are produced by undigested chyme at the far end of intestines.