1114results about "Animal fodder preservation" patented technology

The invention belongs to the technical field of bioengineering and the technical field of food engineering, and discloses a regulation and control method for improving the DHA content and the sn-2 DHA proportion in schizochytrium limacinum grease fermentation liquor, schizochytrium limacinum algae powder and application of the schizochytrium limacinum algae powder. In the fermentation culture process, the pH of fermentation liquor in the fermentation process is controlled by supplementing acid or alkali in stages. According to the method disclosed by the invention, the pH value of the fermentation liquor is regulated and controlled in stages in the fermentation culture process of the schizochytrium limacinum, and the schizochytrium limacinum can obtain a higher splitting propagation speed, a longer grease accumulation period and a shorter grease consumption end period by regulating and controlling the pH value in the fermentation process. According to the obtained schizochytrium limacinum grease, the oil yield is obviously improved compared with that of a traditional fermentation strategy, and the DHA content and the sn-2 DHA proportion in the oil are also obviously improved.

The invention relates to the technical field of animal feed preparation, in particular to a functional feed additive for ruminants and a preparation method of the functional feed additive for the ruminants, and the functional feed additive for the ruminants is characterized by consisting of the following components in percentage by mass: probiotics which are saccharomycetes, bacillus subtilis and enterococcus faecalis; an enzyme preparation, xylanase and protease; prebiotics are added; a microcapsule coating material; a binder; the balance is a carrier; the probiotics and the enzyme preparation are wrapped in the chitosan / sodium alginate composite film through a microcapsule coating technology, adverse factors such as temperature, humidity and illumination in the production, transportation and storage process can be effectively isolated, meanwhile, in the rumen low-pH, strong-protease and complex-microorganism environment, the coating layer can slowly release and protect active ingredients, and the effect of preventing and treating the probiotics and the enzyme preparation is achieved. Effective content and activity during final feeding are ensured, consistent growth promotion can be kept in different varieties, weights and feeding stages, and production benefits and feeding stability are improved.

The invention relates to the technical field of microorganisms, in particular to application of streptococcus non-lactolyticus GX-7 and a complex microbial inoculant thereof in sugarcane leaf silage, the strain GX-7 is separated from healthy pig manure by a research group, and through detection, the strain has good cholate resistance and is suitable for surviving in intestinal tracts, and the strain GX-7 has good cholate resistance and is suitable for being used as a feed additive. The antibacterial effect on pseudomonas fluorescens, listeria monocytogenes, salmonella choleraesuis and shigella flexneri is achieved; the strain has a good fermentation capability on sugarcane leaves, and the sugarcane leaves are inoculated with a complex microbial inoculant prepared from streptococcus non-lactolyticus GX-7 and streptococcus non-lactolyticus GX-2, so that a synergistic fermentation effect can be achieved; after the silage prepared from the complex microbial inoculant is fed to female buffalo in the gestation period, it is found that the silage can effectively increase the content of milk protein, milk total solids and milk non-fat solids in colostrum of the female buffalo and relieve diarrhea of the female buffalo, and the silage is safe and good.

The invention relates to the field of food processing, and discloses a pet food hot air drying processing technique which comprises the following steps: heating raw materials by using microwaves, and exciting and evaporating moisture in the raw materials by radiating the raw materials on a conveying belt through the microwaves; moisture on the surface of the food is removed through hot air drying; microwave heating and hot air drying processes are carried out synchronously, and processing data are regulated and controlled in real time through an intelligent control system. The microwave heating is realized through a frequency-adjustable microwave emitter, and the microwave frequency adjustment range of the frequency-adjustable microwave emitter is 2400 MHz to 2500 MHz. The scheme of combining microwave and hot air drying technologies is adopted, microwave is used for heating internal moisture, a hot air system is matched for removing surface moisture, microwave power and hot air temperature are adjusted in real time, the uniform drying effect is achieved, surface hardening is effectively avoided, it is ensured that moisture inside and outside food is uniformly released, and drying quality and efficiency are improved.

The invention relates to the technical field of pig feed, and discloses a low soybean meal type pig feed formula based on enzymolysis protein and a preparation method of the low soybean meal type pig feed formula based on enzymolysis protein, dephenolized cottonseed meal, corn alcohol lees and the like are used as main raw materials, and the core of the low soybean meal type pig feed formula is that gradient enzymolysis and directional fermentation are dynamically coupled. The probiotics are subjected to specific induction domestication, so that the probiotics can efficiently adapt to a reaction system; in the coupling process, compound cellulase, protease and the like are added step by step according to a time sequence, the pH value of the system is intelligently adjusted by utilizing acid generated by fermentation, and optimal conditions are created for subsequent directional enzymolysis, so that the functional peptide with specific molecular weight is enriched. And finally, a low-temperature keep-alive drying technology is adopted, so that the biological activity of probiotics and functional peptides in the product is completely reserved. According to the method, raw material harmlessness, protein directional conversion and active substance protection are integrated, and high-value utilization of low-value agricultural and sideline products is achieved.

The invention discloses a compound feed for raising plateau live pigs and a preparation method thereof, and relates to the technical field of feed processing. The compound feed for raising the plateau live pigs is prepared from manganese-selenium compound modified charcoal, soybean polysaccharide polylysine-based supported nanoparticles, aspergillus oryzae, soybean meal powder, corn flour, wheat bran, mountain flour, calcium hydrophosphate, table salt and multivitamins. Manganese-selenium composite modified charcoal, soybean polysaccharide polylysine-based supported nanoparticles and aspergillus oryzae are subjected to co-fermentation culture to form a uniform, stable, loose and porous three-dimensional network fermentation substrate composite system, so that the damage of gastric acid to components is reduced, the targeted release of intestinal tracts is realized, and the bioavailability is improved. The composite functional additive which is high in nutrition, easy to absorb, anti-oxidation, anti-anemia, anti-ultraviolet radiation and the like is obtained, and the adverse effects of low temperature, oxygen deficit and ultraviolet factors on animal growth and feed oxidative rancidity are effectively reduced.

The invention belongs to the technical field of preparation of probiotic products, and relates to a lactic acid bacteria microcapsule as well as a preparation method and application thereof. The method comprises the following steps: uniformly mixing sodium alginate, modified montmorillonite and sterile water, cooling, adding a prepared lactic acid bacteria seed solution, and fully and uniformly mixing to form an emulsion; spraying the emulsion into a calcium chloride solution by adopting an extrusion method, stirring and curing to obtain microcapsules; and culturing the prepared microcapsule in a lactic acid bacteria liquid culture medium to obtain the lactic acid bacteria microcapsule after the culture is finished. The lactobacillus is effectively protected by adopting an extrusion-method single coating and post-coating culture process, so that the stability of the lactobacillus to a humid and hot environment and the gastrointestinal stress resistance are improved, and meanwhile, the release performance of the lactobacillus in the gastrointestinal tract is ensured. The problem that an existing microcapsule coating technology cannot achieve balance between improvement of the hygrothermal stability and gastrointestinal stress resistance of the probiotics and guarantee of good release performance of the probiotics in the gastrointestinal tract is solved.

The invention discloses an application of Lactobacillus plantarum in at least one of the following items: a1, an application in improving the silage quality of silage, a2, an application in improving the silage quality, a3, an application in improving the silage quality, a4, an application in improving the silage quality, and a5, an application in improving the silage quality. A2, application in preparation of silage; a3, application in preparation of a silage additive; the strain name of the lactobacillus plantarum is LA2, the lactobacillus plantarum is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number of the lactobacillus plantarum is CGMCC No. 33484. According to the invention, the lactobacillus plantarum or the microbial inoculum thereof or the silage additive thereof is added into the silage for the first time, and tetracycline resistance genes in the silage can be remarkably reduced; after the lactobacillus plantarum or the microbial inoculum thereof or the silage additive thereof disclosed by the invention is added, the generation and residue of tetracycline resistance genes in feed can be reduced, the propagation of the tetracycline resistance genes in a food chain is reduced, the safety of forage grass is ensured, and the damage to animals, environment and human bodies is reduced; and the drug resistance of human pathogenic bacteria is reduced while the health level of animals is improved.

The present invention discloses a semi-artificial diet for Tuta absoluta larvae, a preparation method thereof and an application thereof. In the present invention, 1000 mL of water is boiled, and after it is stable, 0.5 - 1 g of sorbic acid, 0.5 - 1 g of sodium p-hydroxybenzoate and 0.1 - 0.2 g of thiabendazole are added, and quickly stirred and melted. Subsequently, compound vitamins are added, and after stirring evenly, 500 - 550 g of malt embryos are added and stirred into a dough. When the temperature drops below 30 °C, 150 - 200 g of tomato leaf powder is added and stirred and mixed evenly to obtain the semi-artificial diet for Tuta absoluta larvae. The components of the semi-artificial diet of the present invention can not only meet the nutritional requirements of test insects, but also have an optimal compound ratio of different components, and particularly give the best nutritional ratio. At this ratio, the survival rate, pupation rate and emergence rate from larvae to pupae are high, and the deformity rate of pupae is low.

The invention provides an efficient enzymolysis fermentation method for hermetia illucens larvae. The efficient enzymolysis and fermentation method for the larvae of the hermetia illucens comprises the following steps: a, selecting fresh or chilled larvae of the hermetia illucens, firstly cleaning and removing impurities, then pulping by adopting hydraulic pressure, and controlling the particle size within the range of 1-5mm after pulping so as to ensure the subsequent enzymolysis and fermentation effects; b, according to the characteristics of hermetia illucens larvae, selecting compound protease and neutral protease as main enzymolysis agents, and mixing the raw materials, the enzymolysis agents and water according to the mass ratio of 10: 2: 5. According to the efficient enzymolysis and fermentation method for the hermetia illucens larvae, by optimizing the enzymolysis reaction and fermentation process, the antioxidant activity of polypeptide prepared from the hermetia illucens larvae can be effectively improved. By accurately selecting enzymolysis agents such as compound protease and neutral protease and reasonably combining fermentation strains, the method can significantly improve the antioxidant effect of the final product, so that the method has higher market competitiveness when being applied to the feed industry.

Described herein, in certain embodiments, is a process for preparing a pet food, the process comprising: receiving a first ingredient from a protein source, a second ingredient from a vegetable source and a third ingredient from a dry and liquid source to add a fermentation component to the pet food; mixing the first ingredient, the second ingredient and the third ingredient; to create a mixture; fermenting the mixture to create a fermented mixture, wherein fermenting the mixture comprises combining the mixture with pediocins to abate growth of harmful bacteria; steaming the fermented mixture; pasteurizing the fermented mixture to create a pasteurized mixture; and processing the pasteurized mixture with a high pressure process to produce the pet food that has a shelf-stability at room temperature of greater than 40 days.

The invention belongs to the technical field of biological feed, and particularly relates to a composite silage leavening agent, silage and application. The compound silage leavening agent is prepared from the following components: lactobacillus plantarum and vitamin enzyme, wherein the concentration of the lactobacillus plantarum is greater than or equal to 1 * 10 < 9 > CFU / kg, and the concentration of the cellulase is 1 * 10 < 6 >-1 * 10 < 8 > U / kg. In the preparation process of the silage, due to the synergistic effect of cellulase and lactobacillus plantarum, escape of nutrient substances such as ammoniacal nitrogen is reduced, the content of nutrient substances such as polypeptide is increased, and the nutritional value of protein of the silage is reserved. The ensiling feed disclosed by the invention is good in fermentation quality and rich in nutrient substances, and can improve the digestibility and the total volatile fatty acid yield of mutton sheep when being used for feeding the mutton sheep; and meanwhile, efficient conversion of silkworm branch and leaf byproducts can also be realized.

The invention relates to the technical field of microorganisms, in particular to application of streptococcus non-lactolyticus GX-2 and a complex microbial inoculant thereof in peanut vine silage, and the strain GX-2 is suitable for surviving in the stomach and has an antibacterial effect on staphylococcus aureus, escherichia coli, pseudomonas fluorescens and listeria monocytogenes; the streptococcus non-lactolyticus GX-7 and the streptococcus non-lactolyticus GX-2 are prepared into a complex microbial inoculant, and then the complex microbial inoculant is inoculated into the peanut vines, so that the synergistic fermentation effect can be achieved at the mass ratio of 1: (1-3); after the gestational buffalo is fed with the silage prepared from the complex microbial inoculant, the silage is found to be capable of effectively increasing the contents of total milk solids and non-fat milk solids in the colostrum of the buffalo and relieving the diarrhea of the buffalo, and is safe and good.

The invention discloses a preparation method of a mycotoxin degrading enzyme intelligent slow-release feed additive, and relates to the technical field of feed additive production, a double-emulsion embedding technology is adopted, enzyme is embedded in a multi-layer shell composed of chitosan, sodium alginate and an enteric polymer Eudragit S100, and then Ca < 2 + > ion cross-linking solidification is performed to obtain the mycotoxin degrading enzyme intelligent slow-release feed additive. And finally, freeze-drying or spray-drying to obtain the core-shell structure microcapsule. The obtained microcapsules are compounded with functional carriers such as yeast cell walls, sodium aluminosilicate, mannan oligosaccharide, talcum powder and the like to prepare finished products which can be directly added into various feeds. The release rate of the additive in simulated gastric juice with the pH value of 2.0 for 4 hours is lower than 15%, the release rate of the additive in simulated intestinal juice with the pH value of 6.8 for 6 hours exceeds 90%, the enzyme activity can be effectively protected, and targeted release of intestinal tracts is achieved; meanwhile, the compound carrier has a synergistic adsorption effect on various mycotoxins, and the degradation rates of aflatoxin B1, zearalenone and ochratoxin A in an in-vitro experiment respectively reach 87% or above.

The invention relates to the technical field of microorganisms, in particular to pediococcus pentosaceus for degrading silage fumonisins and application of the pediococcus pentosaceus. The pediococcus pentosaceus is preserved in the General Microbiological Culture Collection Center of the China Committee for Culture Collection of Microorganisms, and the preservation number of the pediococcus pentosaceus is CGMCC No. 28710. The pediococcus pentosaceus is high in growth rate, high in acid production efficiency, good in acid resistance and salt resistance, capable of well utilizing different types of carbon sources for fermentation, high in adaptive capacity and free of virulence genes commonly having toxic effects on livestock, the pediococcus pentosaceus serves as a pasture silage additive, the fermentation type is homotype fermentation, and the application range is wide. The pH value of the silage can be rapidly reduced, generation of ammoniacal nitrogen is reduced, the content of fumonisins is efficiently reduced, the fermentation quality of the silage is improved, and wide application prospects are achieved.

To provide a pet food product and a spoon for a pet which enable a feeder to conveniently feed the pet by using a single hand while allowing the pet to take a posture appropriate for the pet.SOLUTION: A pet food product (1) comprises a container (2) and wet food (3). The container is provided with: a bottom part (21); a peripheral wall part (22) that extends upward from the outer peripheral edge of the bottom part (21), surrounds the periphery of the bottom part (21), and defines, together with the bottom part (21), a housing part (23) that opens upward; and a holding part (24) protruding outwardly from the peripheral wall part (22). The wet food is housed in the housing part (23).SELECTED DRAWING: Figure 1

The invention relates to polyethylene glycol glycerol ricinoleate granules as well as a preparation method and application thereof. The granules comprise first polyethylene glycol glycerol ricinoleate with an HLB (Hydrophile-Lipophile Balance) value of 17-19, second polyethylene glycol glycerol ricinoleate with an HLB value of 12-14, a carrier and vitamin E acetate. According to the invention, fatty acid and / or hydrogenated vegetable oil are / is taken as a nutritional carrier, and polyethylene glycol glycerol ricinoleate with an HLB value of 12-14 is introduced, so that the dispersity of active ingredients with a high HLB value (17-19) in the carrier is effectively improved, and granulation is facilitated; meanwhile, the vitamin E acetate is added, so that the immunity of animals can be enhanced while the effects of resisting oxidation and prolonging the shelf life of the product are achieved. The granules solve the problems that pure products are not easy to mix, inconvenient to use and the like.

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 bacillus capable of efficiently degrading fibers and application of the bacillus. The name of the bacillus altitudinis DF34 is bacillus altitudinis, the preservation number of the bacillus altitudinis is GDMCC No: 65492, and the bacillus altitudinis is preserved in Guangdong Microbial Culture Collection Center on December 4, 2024. The bacillus has the characteristics of strong stress resistance and high growth speed; the strain has the capability of efficiently degrading fibers, and can degrade fiber components of forage grass, promote fermentation and improve the fermentation quality of the forage grass with low soluble sugar water content in the ensiling process. Therefore, the bacillus altitudinis DF34 can be widely applied to various regions in China, and especially has an outstanding effect on silage raw materials with high fiber content. The strain successfully solves the problem of poor silage fermentation caused by low water-soluble carbohydrate content, and provides a new solution for improving the quality of the silage.

The invention discloses a chilo suppressalis artificial feeding feed and a preparation method thereof, and belongs to the technical field of feeds. The invention discloses a preparation method of an anti-aging agent. The feed is prepared from the following raw materials: 7.5 to 10.0 percent of soybean meal, 5.0 to 6.0 percent of yeast powder, 3.0 to 4.0 percent of sucrose, 3.0 to 4.0 percent of casein, 2.0 to 2.8 percent of rice husk meal, 3.0 to 3.5 percent of rice stem powder, 0.1 to 0.2 percent of formaldehyde solution, 3.0 to 3.5 percent of agar, 0.6 to 0.8 percent of ascorbic acid, 0.005 to 0.01 percent of vitamin B complex, 0.04 to 0.1 percent of choline chloride, 0.045 to 0.065 percent of cholesterol, 0.2 to 0.35 percent of sorbic acid, 0.03 to 0.035 percent of Webster salt, 0.3 to 0.35 percent of methylparaben, 30 to 32 percent of zizania latifolia and the balance of water. The survival rate, feed utilization rate, insect body conversion rate and shelf life of the chilo suppressalis can be effectively improved.

The invention discloses a bran fermented biological feed and a preparation method thereof, and belongs to the technical field of feeds. The bran fermented biological feed is prepared by uniformly mixing and fermenting the following raw materials: wheat bran, corn flour, soybean meal, calcium hydrogen phosphate, sodium chloride, an enzyme preparation, a water retention setting agent, a mildew preventive and water, wherein the enzyme preparation is prepared from lactobacillus plantarum, bacillus subtilis and saccharomycetes; the mildew preventive is prepared by the following steps: reacting chitosan oligosaccharide with propiolic acid to obtain modified chitosan oligosaccharide, reacting L-cystine with ethyl azidoacetate to obtain an azide compound, and finally reacting the modified chitosan oligosaccharide with the azide compound. The prepared bran fermented biological feed has an excellent mildew-proof effect and a low pulverization rate, and storage and transportation of the feed are facilitated.

The invention belongs to the technical field of feeds, and particularly relates to a variable temperature animal feed as well as a preparation method and application thereof. The variable temperature animal feed comprises a core body and a shell layer arranged on the surface of the core body, the core body comprises sodium alginate, a protein base material, a phagostimulant A and a fermentation product synergist; the shell layer is prepared from the following raw materials: sodium alginate and calcium lactate; the shell layer comprises a phagostimulant B; the phagostimulant A comprises an insect-derived phagostimulant, an animal-derived phagostimulant and a plant-derived phagostimulant; the phagostimulant B comprises freeze-dried powder containing fructose and insect zymolyte. Through the synergistic effect of the insect-derived phagostimulant, the animal-derived phagostimulant and the plant-derived phagostimulant and the delicate flavor synergistic effect of the fermentation product synergist and the insect-derived phagostimulant in the phagostimulant A, and in combination with a preparation process of a low-temperature and irradiation sterilization technology, the variable-temperature animal feed has good phagostimulant and nutrient substance retention rate; and safety is realized.

The invention discloses a method for producing feed by using corn sugar residues, and belongs to the technical field of fermentation. The method comprises the following steps: pretreating, proportioning, adding an antibacterial agent, fermenting, drying and crushing, coating, cooling and the like, mixing corn sugar residues, corn germ meal and threonine mother liquor according to a specific ratio, adding zinc oxide and a chitosan antibacterial agent, and inoculating Saccharomyces cerevisiae ATCC 9763 for fermenting. And performing multi-stage drying and crushing on the fermentation product, spraying a coating emulsion prepared from a defatted soybean meal extract, curcumin, vitamin E, lecithin and sophorolipid, and performing air cooling to prepare the feed. According to the method, by-products are fully utilized, the crude protein content of the feed is 32-34.5%, the diameter of an inhibition zone is 18.1-20.2 mm, the moisture absorption rate is 2.7-3.4%, the palatability score is 8.0-8.6, and the fermentation yield is 92-94%. The innovation point lies in specific strain fermentation and functional coating, and is suitable for industrial production.

The invention relates to the technical field of agriculture, in particular to a method for improving silage fermentation quality based on biochar regulation and control, which comprises the following steps: fermenting a silage raw material added with biochar and cane sugar in a closed environment, the addition amount of the biochar being not less than 2% of the fresh weight of the silage raw material; the addition amount of the sucrose is not less than 2% of the fresh weight of the silage raw material; the fermentation days are more than or equal to 30 days, the pH value of the silage is less than or equal to 4.35, and the total content of lactic acid, acetic acid, propionic acid and butyric acid in the silage is more than or equal to 7.99% of the dry weight of the silage. When the biochar and the cane sugar are used as additives to prepare the silage through fermentation, on one hand, the pH value can be balanced through the addition of the biochar, the situation that the pH value is rapidly reduced possibly due to independent use of the cane sugar is avoided, further production of lactic acid in the later period is inhibited, the acidification process is effectively buffered, and continuous and stable lactic acid generation is promoted; on the other hand, the problems of increase of nutrient substance loss, promotion of generation of byproducts such as acetic acid, reduction of generation of lactic acid and the like when the biochar is independently added are avoided.

The invention discloses a production process of grain amaranth fermented feed, and belongs to the technical field of livestock breeding. The method comprises the following steps of raw material preparation, raw material pretreatment, ingredient mixing, fermentation inoculant inoculation, sealed fermentation, fermentation post-treatment and effect verification optimization, by optimizing the production process of the grain amaranth fermented feed, the nutritional value and palatability of the feed are improved, it is ensured that antinutritional factors of grain amaranth are effectively degraded, and the yield of the grain amaranth is improved. Key nutritional ingredients in the raw materials are fully reserved and efficiently absorbed by pigs, the feed intake, the weight gain rate and the feed conversion rate of the pigs are remarkably increased, the content of crude fibers is reduced, the availability of nutrient substances is enhanced, the flavor and the texture of pork are improved, lactic acid bacteria are efficiently utilized and fermentation conditions are accurately controlled in the fermentation process, and the production cost is reduced. The residues of undigested protein and cellulose in the pig manure are reduced, the emission of harmful gases such as ammonia gas and hydrogen sulfide is reduced, and the air quality and sanitary conditions of a farm are improved.

The invention discloses application of bacillus subtilis Z-14 in prevention of spoilage of silage corn straws, and relates to the technical field of whole-plant corn straw silage. According to the invention, a bacillus subtilis strain Z-14 is screened, and the bacillus subtilis strain Z-14 has significant broad-spectrum inhibition of pathogenic fungi and activity of pathogenic bacteria, secretes protease, amylase, cellulase and other digestive enzymes, effectively inhibits the number of bacteria, fungi and escherichia coli in the silage corn straw, accelerates the reduction of the pH value of the silage corn straw, and improves the yield of the silage corn straw. The content of aflatoxin B1 in the silage corn is obviously reduced, the silage quality is improved, a foundation is laid for effectively inhibiting the spoilage of the silage corn straw, and the silage microbial additive has huge application potential.

The invention discloses a compound bacterium enzyme preparation for ensiling and application of the compound bacterium enzyme preparation, and belongs to the field of bacterium enzyme compound preparations. The bacterial enzyme preparation disclosed by the invention comprises lactobacillus plantarum, lactobacillus buchneri, cellulase and xylanase, has the effects of improving the fermentation quality of silage, promoting the improvement of the organism immunity and the anti-stress capability of ruminants and the like, and has wide market value.

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 crispy pet food and a preparation process thereof, and relates to the technical field of pet feeds, the crispy pet food comprises the following raw materials: fresh chicken, sweet potato granules, cassava starch, fish oil, yolk powder, goat milk powder, yeast hydrolysate, carrot powder, tomato powder, cranberry powder, semen plantaginis and an additive; the crisp food has the beneficial effects that the crisp food adopts a more advanced processing technology, so that the actual addition amount of fresh meat is higher, and animal protein with higher quality and rich nutritional ingredients are provided; the crispy food is pre-added in the whole course by utilizing fat in the raw materials, so that the later grease spraying is avoided, the freshness of the product in the transportation and storage process is ensured, and meanwhile, the occurrence of black chin of pets is reduced; an optimized puffing process is adopted for the crispy food, product particles are crisper and better in palatability, and abrasion of teeth of pets is reduced; the crispy grain particles have a very obvious softening effect within 10 minutes after entering the intestinal tract, and are more beneficial for pets to effectively absorb nutritional ingredients.