55 results about "Weaning" patented technology

The invention discloses a structural variation molecular marker located on a pig chromosome 7 and related to the lactation ability of a sow. The structural variation molecular marker is a DNA (deoxyribonucleic acid) fragment which is inserted between the 112024896 bp site and the 112024896 bp site on a chromosome 7 of an international pig reference genome 11.1 version, wherein the nucleotide sequence of the DNA fragment is shown as SEQ ID NO: 1; the genotype of the gene is T / T, T / INS and INS / INS. The structural variation molecular marker provided by the invention obviously influences the total weight gain character and the lactation ability character of the 7-day-old sow, and by breeding the pig with the structural variation molecular marker genotype of T / T, the lactation ability of the sow can be obviously improved, and the survival rate and the weaning weight of piglets are increased.

The multifunctional supplementary feeding fence for the lambs before weaning relates to the field of the lambs and comprises a supporting bottom plate, moving wheels are symmetrically connected to the bottom face of the supporting bottom plate in a butt joint mode, brake plates are arranged on the side edges of the moving wheels, a side channel is formed in one side edge of the supporting bottom plate, a temperature adjusting rotary knob is connected to the inner side edge of the side channel in an inserted mode, and the temperature adjusting rotary knob is connected to the other side edge of the supporting bottom plate in a butt joint mode. The top face of the supporting bottom plate is in butt joint with an isolation top plate in the vertical direction, the top face of the supporting bottom plate is in butt joint with a matched partition plate in the vertical direction, bottom screw holes are symmetrically formed in the bottom face of the supporting bottom plate, connecting screw rods are fixedly inserted into the top faces of the moving wheels, and inserting top grooves are symmetrically formed in the top face of the supporting bottom plate. A split splicing type structure is adopted, so that the lamb breeding device is small in size after being disassembled to be stored, carried and used, and meanwhile, a temperature-controllable and isolation protection type structure is combined, so that the lamb breeding device can feed and treat lambs more comprehensively.

Method of feeding young pigs involves feeding young pigs with complete mixed feed. Wherein, isoleucine levels in the composition of mixed feed are specifically regulated by introducing synthetic isoleucine. The ratio of standardized ideal digestible (SID) isoleucine to lysine in the diet is 0.55. The specified ratio is maintained in the diets of young pigs during the nursery after weaning, from 24 to 70 days of age.

The invention discloses application of 2-hydroxy-4-methylpentanoic acid in preparation of a product for relieving weaning stress, and belongs to the technical field of feed development. The product is a product for improving slow growth caused by weaning stress, promoting weight gain of animals and improving animal intestinal injury caused by weaning stress. The 2-hydroxy-4-methylpentanoic acid directly intervenes in the fundamental pathological change of jejunum epithelium structure damage, an efficient and safe scheme for relieving weaning stress is provided for animal husbandry, and the 2-hydroxy-4-methylpentanoic acid can be applied to piglets and other animals prone to being affected by weaning stress on a large scale and has remarkable economic and social benefits.

To provide new means useful for reducing symptoms liable to occur in calves during a lactation period, symptoms of calves caused by weaning stress, and adverse effects on health conditions of calves.SOLUTION: Provided are a supplement containing lysine for calves in the lactation period for improving symptoms or conditions of calves in the lactation period, a supplement containing bypassed lysine for calves in the weaning period for improving symptoms or conditions in association with the weaning period, and a supplement set for calves prepared by combining the above-mentioned supplements. According to the present invention, it is possible to improve or enhance the health conditions of calves from the lactation period to the weaning period.SELECTED DRAWING: Figure 2-3

The invention discloses zero-lactose formula goat milk powder for pets and a preparation method of the zero-lactose formula goat milk powder, and relates to the technical field of preparation of goat milk powder. Comprising the following raw materials: raw goat milk, lactase L3000, sodium citrate, low-sensitivity whey protein, medium-chain triglyceride, fructo-oligosaccharide, galactooligosaccharide, modified sodium caseinate, modified chicken flavor peptide, composite minerals, composite vitamins, trehalose, sodium ascorbate, microcrystalline cellulose and polyglycerol fatty acid ester. According to the invention, the modified chicken flavor peptide is added, the chitosan oligosaccharide and gamma-aminobutyric acid modified chicken flavor peptide in the modified chicken flavor peptide realize long-acting retention of natural chicken flavor by virtue of a double-layer coating structure, the flavor is prevented from being oxidized and losing aroma during processing and storage, and the ingestion willingness of pets is remarkably improved; the chitosan oligosaccharide can adjust the balance of intestinal flora of the pet, and the gamma-aminobutyric acid can relieve the stress reaction of the pet during ingestion, so that the feed additive is suitable for weaned or food-changing pets, and achieves triple effects of aroma enhancement, intestine protection and relieving.

The application discloses a weaning mask for livestock breeding and relates to the field of tools for livestock breeding.The weaning mask for livestock breeding comprises a mask body which is a half-circular conical cylinder cut from the middle, further comprises: a mounting cylinder fixedly connected to the mask body, the mounting cylinder being mounted at the small end of the mask body in the form of a half-circular conical cylinder and coaxially arranged with the mask body; and a liquid storage tank slidably connected in the mounting cylinder, the liquid storage tank containing water mixed with edible bittering agents.The weaning mask for livestock breeding is provided with water containing bittering agents and a sucking nipple, when the young livestock wants to suck milk, the sucking nipple is moved by being squeezed, and then the sucking nipple is close to the mouth of the young livestock, the young livestock will naturally suck the sucking nipple, at this time, the water containing bittering agents is sucked into the sucking nipple, and the young livestock will feel uncomfortable, and the young livestock will not like to suck milk for a long time, and the weaning of the young livestock is naturally completed, and the eating of the mother beast is not affected, and the weaning mask is convenient to use.

The application discloses a functional feed additive composition for improving lactation performance of lactating sows and uniformity of piglets and application thereof, and belongs to the technical field of livestock feed additives. The additive is composed of a core functional component, a composite modified slow-release functional agent and a carrier auxiliary material according to percentage by weight. The application can improve the lactation yield of sows by more than 15% through synergistic effect of components, shorten the weaning estrus interval, reduce the standard deviation of piglet body weight by more than 20%, and greatly reduce the weak piglet rate and the diarrhea rate. The process is suitable for large-scale production, the economic benefit is remarkable, and the application is suitable for feeding of lactating sows in large-scale pig breeding.

This invention discloses a hematopoietic nutritional steamed bun for piglets, comprising: 35-45 parts corn, 10-15 parts whey powder, 8-10 parts puffed soybeans, 8-10 parts fermented Chinese herbal medicines, 6-8 parts soybean meal, 4-6 parts fish meal, 2-5 parts milk powder, 0.3-0.6 parts compound vitamins, 0.1-0.3 parts compound microminerals, 0.1-0.3 parts zinc oxide, and 0.02-0.05 parts 5-hydroxytryptophan; the fermented Chinese herbal medicines include: 8-12 parts Codonopsis pilosula, 8-12 parts Astragalus membranaceus, 6-10 parts Aucklandia lappa, 8-12 parts Atractylodes macrocephala, 8-12 parts Poria cocos, 12-17 parts longan pulp, 12-17 parts Rehmannia glutinosa, 8-12 parts dried ginger, and 12-17 parts prepared licorice root; the fermented Chinese herbal medicines are obtained by fermentation after ultra-fine grinding of the herbal raw materials. This invention uses fermented Chinese herbal medicines and further optimizes the strains and fermentation process. By scientifically combining various functional nutrients, it systematically promotes hemoglobin synthesis, regulates the intestines, and enhances immune function in piglets, targeting the physiological characteristics of piglets during the peripartum and weaning transition periods, thereby achieving the comprehensive effect of promoting growth and reducing mortality.

The invention discloses a compound feed additive containing cationic antibacterial peptide and application of the compound feed additive, and belongs to the technical field of animal nutrition and feed additives. The compound feed additive consists of the following components in percentage by mass: 10-30% of cationic antibacterial peptide, 5-15% of a saccharomyces cerevisiae viable bacteria preparation, 20-40% of butyric acid and 25-50% of milk powder. Through the synergistic effect of the antibacterial peptide, the probiotics, the acidifying agent and the food calling component, weaning stress can be effectively relieved, the feed intake and daily gain of piglets are remarkably increased, the feed conversion ratio and diarrhea rate are reduced, and intestinal health is improved. The additive is safe, free of residues and convenient to use, and is an ideal choice for replacing an antibiotic growth promoter, so that the additive has better application prospect and value in the technical field of animal nutrition and feed additives.

The invention provides a composition for reducing the diarrhea rate of calves before weaning by using cinnamon polyphenol and application of the composition, and belongs to the technical field of animal feed. The composition comprises a basic ration and cinnamon polyphenol. Cinnamon polyphenol is applied to feeding of the calves before weaning for the first time, the diarrhea frequency and the excrement score of the calves can be remarkably reduced by supplementing a specific dose of cinnamon polyphenol through daily ration, the intestinal mucosa barrier function is effectively improved, the antioxidant capacity and the immune function of the body are improved, the intestinal flora structure is optimized, and the relative abundance of beneficial bacteria is increased. The composition uses natural plant extracts, is safe and free of residues, provides a green and efficient feed solution for solving the problem of high diarrhea rate of the calves in the lactation period, and has a good application prospect.

The invention discloses a rabbit source fermentation lactobacillus mucus RLF77 and an application of the rabbit source fermentation lactobacillus mucus RLF77. The strain is separated from intestinal tracts of weaned young rabbits and is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 20252224. The bacterial strain has the excellent characteristics of being used as a probiotic, being resistant to gastrointestinal tract environment and high in intestinal epithelial cell adhesion rate, and being capable of effectively inhibiting various pathogenic bacteria such as escherichia coli, salmonella and the like. Animal experiments show that the production performance of weaned young rabbits can be remarkably improved, the diarrhea rate can be reduced, the survival rate and the oxidation resistance can be improved by feeding the rabbit-derived RLF77 strain, and the effect is superior to that of non-rabbit-derived probiotics. The invention provides a new strain resource for developing green breeding products for replacing antibiotics.

The invention relates to the technical field of PCV2 purification. The invention provides a PCV2 purification method. The PCV2 purification method comprises the following steps: (1) detecting PCV2 in piglets, sows, boars and the environment before weaning; (2) respectively treating piglets, sows and boars before weaning according to detection results; and (3) disinfecting the environment according to a detection result. The PCV2 purification method described in the invention comprises the following steps: immunizing piglets, replacement pigs, boars and sows in a delivery room, partially removing the piglets, the replacement pigs, the boars and the sows, and disinfecting the environment, so as to finally complete the purification of the PCV2 in the delivery room in the intensive production process.

The invention relates to the technical field of feed preparation, and particularly discloses a biological feed for relieving stress of piglets after weaning and a preparation method thereof.The biological feed comprises, by weight, a basic material and an active material, the active material comprises 4-6 parts of composite mineral particles and 8-12 parts of enteric flavone particles, the composite mineral particles take bentonite as a framework, sodium bicarbonate and an inorganic ion carrier are doped into the inner layer, and an enteric coating is arranged on the outer layer; the enteric flavone particles comprise flavonoid compounds, and enteric coatings are arranged on the outer layers of the enteric flavone particles. The improved composite mineral particles and enteric flavone particles are introduced, buffer salt in the inner layers of the composite mineral particles can locally adjust pH and osmotic pressure in small intestines, the intestinal epithelium electrolyte environment can be stabilized, intestinal acidification caused by weaning stress is relieved, the intestinal flora steady state recovery speed can be remarkably increased, and the diarrhea rate can be remarkably reduced.

The application belongs to the technical field of composite materials, and particularly discloses a preparation method and application of a stress-resistant and immunity-enhancing preparation for piglets, which is prepared by using sodium iron chlorophyll and sodium selenium-rich acid as core blood supplement elements, collocating an astragalus polysaccharide and a cordyceps polysaccharide compound polysaccharide system, combining functional oligosaccharides, antibacterial peptides and probiotics to construct an intestinal microecological regulation module, and supplementing with composite amino acids and vitamins to form a nutritional synergistic system, and is prepared through gradient sugar molecule inclusion, low-temperature microcapsule embedding and other innovative processes, so that the physical energy, qi and blood are supplemented simultaneously. The preparation can effectively reduce the incidence of hypoglycemia in newborn piglets, improve the disease resistance and immunity of the piglets, relieve weaning stress, improve the weaning survival rate and weaning weight, and simultaneously improve the nutritional supply of perinatal sows, reduce postpartum fatigue of the sows, improve milk quality and indirectly help the growth of the piglets.

The invention discloses a compound probiotic preparation for relieving heat stress of sows and application of the compound probiotic preparation, and belongs to the technical field of animal feed. The compound probiotic preparation comprises clostridium butyricum, bacillus subtilis, bacillus licheniformis and enterococcus faecalis, wherein the final concentration of the clostridium butyricum in the feed is 1 * 10 < 6 > CFU / g, and the final concentration of the bacillus subtilis, the final concentration of the bacillus licheniformis and the final concentration of the enterococcus faecalis in the feed is 5 * 10 < 6 > CFU / g. The preparation provided by the invention can effectively reduce the stress hormone level and oxidative damage index in the blood of the sow under the heat stress condition, improve the activity of antioxidant enzyme, improve the feed intake and lactation performance in the lactation period, and reduce the backfat loss. Meanwhile, through the vertical transfer effect of the sows and the piglets, the intestinal morphology of the offspring piglets is remarkably improved, the intestinal barrier function and the antioxidant capacity are enhanced, and the weaning weight and the average daily gain of the piglets are improved, so that the negative effects of heat stress on the reproductive performance of the sows and the growth of the piglets are comprehensively relieved. The preparation is green and safe, and has important application value.

A method for assisting a patient in weaning from a therapy, the method being executed by a controller, and the controller being configurable with different at least one weaning strategy. The method includes setting, based on at least one input by a user, a target weaning strategy among the at least one weaning strategy, where the at least one input corresponds to a clinical decision determined by the user.

The application provides a SNP molecular marker related to weaning weight of Yongdeng seven goats, a detection kit and application thereof, and belongs to the technical field of SNP molecular markers. The nucleotide sequence of the SNP molecular marker is shown in SEQ ID NO. 1, the mutation site is the base at the 5343313th site on the 3rd chromosome of the international sheep genome Oar_v4.0 version, and the high weaning weight trait of Yongdeng seven goats can be identified by selecting the advantageous allele of the site through typing of the site. The application further provides a method for identifying the weaning weight trait of Yongdeng seven goats, screening or breeding Yongdeng seven goats with high weaning weight traits based on the SNP molecular marker. The method has high accuracy, fast detection speed, low cost, and easy result interpretation, and has important application value in realizing large-scale molecular precision breeding of Yongdeng seven goats.

The invention relates to the field of probiotics, in particular to lactobacillus enteri LLM10, a probiotic complexing agent for promoting initial start of replacement gilts and oestrus of primiparous sows and application of the probiotic complexing agent. According to the present invention, the preservation number of the Lactobacillus enteri LLM10 is CGMCC No.26850, and the Lactobacillus enteri LLM10, the cinnamon powder and the Gorgon fruit powder are prepared into the complexing agent; the complexing agent can better enable the lactobacillus enteri LLM0 to be colonized in animal bodies, and has higher tolerance to artificial cholate, artificial gastric acid and artificial intestinal juice; particularly, hormone synthesis and secretion of the replacement gilts and the primiparous sows can be better improved, so that follicular development of the replacement gilts is improved, early starting of the replacement gilts is promoted, timely oestrus of the primiparous sows after weaning is promoted, the oestrus rate is increased, the pregnancy rate is increased, and the number of live piglets is increased.

The invention provides clostridium butyricum DNCBCR-212 and application thereof, and belongs to the technical field of microorganisms. The clostridium butyricum DNCBCR-212 provided by the invention is preserved in the China General Microbiological Culture Collection Center on March 24, 2023, and the preservation number of the clostridium butyricum DNCBCR-212 is CGMCC (China General Microbiological Culture Collection Center) No.26897. The clostridium butyricum DNCBCR-212 provided by the invention has the advantages that the clostridium butyricum DNCBCR-212 The clostridium butyricum DNCBCR-212 not only can increase the body weight, daily gain and average dry matter feed intake of the calves before weaning and improve the apparent digestibility of neutral detergent fibers, crude proteins and crude fat, but also can improve the oxidation resistance and immune function of the calves before weaning.

The invention provides application of andrographolide in promoting calf growth and relieving weaning stress based on a microbial community regulation effect, and belongs to the technical field of animal feeding. The andrographolide (AG) can significantly improve the growth performance and the health level of the calves, relieve the weaning stress of the calves and improve the respiratory tract health of the calves by inhibiting inflammation and oxidative stress and systematically regulating and controlling microbial communities at multiple parts. Under the low-dosage feeding level, AG is more prone to optimizing rumen microflora, rumen is promoted to turn to an efficient propionic acid type fermentation mode, and sustainable benefits are achieved; and under a high dosage level, AG exerts a stronger anti-inflammatory and anti-oxidation effect to realize short-term benefit maximization. AG is added, so that the cross-site interaction between microbial communities in the digestive tract and the nasal cavity is enhanced, the colonization of various potential pathogens in the nasal cavity is remarkably inhibited, and the respiratory tract health of the calf is improved.

The application discloses a traditional Chinese medicine composition for improving sow reproductive capacity and application thereof. The traditional Chinese medicine composition is prepared by accurate proportioning and comprises the following raw materials in parts by weight: Herba Epimedii: 1-10 parts; Semen Euryae: 1-10 parts; Spatholobus suberectus Dunn: 1-10 parts; Camellia oleifera Abel: 1-10 parts; Curcuma longa L: 1-7 parts; Radix Codonopsis: 1-6 parts. The traditional Chinese medicine composition can comprehensively regulate sow reproductive system and effectively solve problems such as estrus delay, high estrus return rate and litter reduction. In the application verification in multiple pig farms, the traditional Chinese medicine composition can significantly shorten the weaning-estrus interval of sows, promote the secretion of reproductive hormones, improve the conception rate, greatly increase the average total number of litters and improve the survival rate of piglets. The characteristics of no hormone and no chemical additive guarantee food safety, reduce breeding cost and promote the green and sustainable development of the animal husbandry. The application is suitable for various pig breeds and scale farms and has wide practical value and popularization potential.

The invention provides a sustained-release bar for repairing mammary glands in the early stage of dry milk of dairy cows and a preparation method thereof, and belongs to the technical field of veterinary pharmaceutical preparations. The breast repair slow-release bar for the dairy cow in the early stage of dry milk is prepared from the following raw materials in parts by weight: 6 to 10 parts of compound plant extract, 10 to 15 parts of ferroferric oxide, 8 to 12 parts of magnesium oxide, 6 to 10 parts of zinc sulfate, 1 to 5 parts of hordenine hydrochloride, 1 to 5 parts of manganese sulfate, 0.05 to 0.15 part of calcium iodate, 0.05 to 0.15 part of sodium selenite, 0.5 to 2 parts of calcium stearate and 3 to 10 parts of vegetable oil. The breast repair slow-release bar for the dairy cow in the initial dry period can effectively promote emptying and involution of breasts of the dairy cow in the dry period, the involution period is remarkably shortened, the risk of mastitis infection in the dry period is reduced, and the repair effect of the breast repair slow-release bar is better than that of natural milk stop.

The invention belongs to the technical field of feed additives, and particularly relates to a microalgae compound feed additive for relieving weaning stress of calves and a preparation method of the microalgae compound feed additive. The microalgae compound feed additive is prepared from the following raw materials in parts by weight: 5 to 10 parts of microalgae powder, 2 to 6 parts of unsaturated fatty acid / modified montmorillonite compound, 0.7 to 1.2 parts of probiotics and 0.3 to 0.5 part of walnut shell extract. The microalgae compound feed additive can improve the fragile intestinal barrier function and immunocompetence of the calves in the weaning period, improve the growth performance of the calves and further improve the breeding benefits.

The application discloses a kind of special feed additive compositions of pig, preparation method and use method, the additive composition of the application includes microecological function component (metabiotic and probiotic bacteria), enzyme preparation component (non-starch polysaccharide enzyme, protease, lipase), plant active component (tannic acid and plant essential oil), organic trace element and nutrition fortification component (amino acid chelated trace element, functional amino acid, nucleotide yeast hydrolysate) and targeted acidifier (citric acid, lactic acid, butyric acid glyceride).The special feed additive composition of pig proposed in the application can make the average daily weight gain of pig reach 338g / d, increase by 50.9% compared with prior art, the standard rate of piglet weaning is increased to 85%, the feed conversion ratio is reduced to 2.31, the diarrhea incidence is reduced to 5.0%, with significant growth promotion, intestinal repair, feed conversion efficiency improvement and environmental pollution reduction benefits.

The invention relates to the technical field of pig breeding and veterinarians. The invention provides a method for producing a negative fattening group by a PRV-gE antibody positive sow group. The method comprises the following steps: (1) carrying out pseudorabies gE nucleic acid detection, gE antibody detection and gB antibody detection on boars, replacement gilts, multiparous sows and delivery room piglets in a breeding pig farm; (2) respectively treating the pigs which are detected to be unqualified; (3) carrying out vaccine immunization on all sows; (4) carrying out pseudorabies wild virus nucleic acid detection on the sows, and carrying out preliminary screening on the piglets; (5) weaning the 21-24-day-old piglets, performing secondary screening, and transferring qualified piglets to a nucleic acid negative non-continuous production fattening house; and (6) carrying out immunization and pseudorabies gE antibody detection on the fattening pigs. According to the method, breeding pigs and piglets are screened layer by layer, pig herds are effectively purified, production of negative fattening pigs can be achieved, and the health degree of the pigs is guaranteed. The overall cost is controllable, the effect is quick, and the economic benefit is remarkable.

The utility model discloses a multifunctional supplementary feeding fence for lambs before weaning, which comprises a top frame assembly horizontally fixed at the top of the fence, and two sides of the top frame assembly are provided with through chute support columns extending in the vertical direction; the feed container is hung below the top frame assembly, and a feed leaking seam is formed in the bottom of the feed container; the movable opening and closing mechanism is arranged below the feed container and matched with the sliding groove supporting columns. A sliding connector; a material receiving device; by means of a three-dimensional staggered space formed by the vertical protective fences and the horizontal bearing plate, physical blocking can be achieved according to the biological characteristic of the thickness of the tongue of the ewe, the anti-raking protruding blocks can generate pain stimulation on the hard hoof nails of the ewe, the soft hoof parts of lambs are not hurt, the condition that the ewe rakes food is reduced, and the ewe feeding efficiency is improved. The height of the bottom end of the protective fence is synchronously changed through lifting of the movable opening and closing mechanism, and in the use process of the movable isolation belt, power supply is not needed, and different material flowability is adapted.

The present application relates to the technical field of animal model construction, and relates to a fetal origin atherosclerosis susceptible model and a construction method and application thereof.The construction method of the fetal origin atherosclerosis susceptible model comprises the following steps: S1, selecting healthy pregnant ApoE- / - mice, subcutaneously injecting dexamethasone twice a day at 16-17 days of pregnancy, the injection amount of dexamethasone is 0.6-0.8 mg / kg of the body weight of the pregnant female mouse, and the pregnant female mouse is free to eat; S2, the pregnant female mouse naturally gives birth to F1 generation, the male and female offspring are weaned and separated into cages at 3-4 weeks after birth, and continue to be normally fed until 6-7 weeks after birth, and then high-fat high-cholesterol feed is given to feed until 18-19 weeks; the fetal origin atherosclerosis susceptible model is obtained.The present application successfully constructs the fetal origin atherosclerosis susceptible model by injecting dexamethasone at a specific time, and the atherosclerosis lesion of the model presents a significant aggravation effect.

The invention belongs to the technical field of animal breeding and breeding, and particularly relates to a mammal pacifying pheromone composition as well as a preparation method and application thereof. The composition can be used for preventing and / or treating stress reactions or diseases caused by the stress reactions of mammals, and the stress reactions include but are not limited to stress reactions of female mammals in the delivery stage, the lactation stage, the weaning stage and / or the group transfer stage of mammals; the feed additive has good stability and broad-spectrum adaptability, and obviously improves the stillbirth rate, the compression death rate of the mammalian cubs and the ingestion, behavior and growth performance of the mammalian cubs.

The invention relates to the technical field of feeds, in particular to a compound feed for improving intestinal health of piglets and a feeding method of the piglets. The compound feed for improving the intestinal health of the piglets consists of corn flour, whey powder, a core functional component, a premix, other trace components and a carrier, the core functional component comprises a digestible fermentation product, functional oligosaccharide and a sterol compound. The digestible leavening is prepared by performing enzymolysis on soybean meal and wheat bran through compound protease and then inoculating zymophyte for fermentation. The invention further provides a staged feeding method matched with the feed. The staged feeding method comprises pasty feeding and gradual feed adding in the weaning transition period. Through an enzymolysis and fermentation synergistic process and compounding of core components, deep pre-digestion of the feed is realized, the protein digestibility and the feed conversion rate can be remarkably improved, the emission of ammoniacal nitrogen in intestinal tracts is effectively reduced, and the intestinal health and growth performance of piglets in the weaning period are improved.