65 results about "Weaned piglets" patented technology

The invention discloses a compound feed for weaned piglets and a preparation method thereof, relates to the technical field of feeds, and solves the problems of high stress, low food consumption, slow weight gain, intestinal damage, high diarrhea rate and low survival rate of weaned piglets. Each ton of compound feed for weaned piglets comprises the following raw materials: corn, broken rice, soybean meal, super steam fish meal, extruded soybeans, fermented soybean meal, peanut meal, flour, whey powder, glucose, white sugar, soybean oil, linseed oil, coconut oil, calcium formate, calcium hydrophosphate, amino acid, a vitamin additive, a trace element premix, composite dietary fibers, auxiliary materials and the like. The feed additive can improve the feed intake of piglets, protect the intestinal health of the piglets, enhance the immunity, relieve the weaning stress of the piglets, reduce the incidence rate of diarrhea and disease of the piglets and improve the weight gain rate of the piglets.

The invention discloses a piglet intestinal health targeting probiotic engineering bacterium compound as well as preparation and application thereof. The compound is FP (at) EcN-pnirNKL, wherein a) the EcN-pnirNKL is an engineering strain which is constructed by taking escherichia coli Niss1917 (EcN) as a host and carrying a recombinant plasmid pnirBMisL-NK-Lysin, and a) the EcN-pnirNKL is an engineering strain which is constructed by taking escherichia coli Niss1917 (EcN) as a host and carrying a recombinant plasmid pnirBMisL-NK-Lysin; b) the recombinant plasmid pnirBMisL-NK-Lysin comprises an NK-Lysin gene optimized by a codon, and the NK-Lysin gene is integrated into the anaerobic inducible plasmid pnirBMisL through homologous recombination; c) the FP is a composite nano-particle which takes nano mesoporous silica (MSN) as a core and is formed by crosslinking fucoidin and rhodiola rosea polysaccharide; and d) the FP (at) EcN-pnirNKL is an oral delivery system which is formed by encapsulating the engineering bacterium EcN-pnirNKL in the FP nano particles. When the compound is applied to prevention and treatment of stress response of weaned piglets, various typical symptoms, including weight loss, colon shortening, histopathological injury and colitis disease response, of the piglets induced by dextran sodium sulfate can be remarkably relieved, and meanwhile, the integrity and functions of an intestinal barrier structure are effectively protected.

The invention belongs to the technical field of additives, and particularly relates to application of osthole in preparation of an additive for preventing diarrhea of weaned piglets. Aiming at the problem that the influence of the cnidium lactone on the piglet diarrhea is not found at present, the invention firstly discovers that the piglet diarrhea can be prevented by adding the cnidium lactone into the daily ration of the weaned piglets, so that the invention provides the application of the cnidium lactone in preparing the additive for preventing the weaned piglet diarrhea. The invention further finds that the coated cnidium lactone coated by a specific method has a better effect of preventing piglet diarrhea. A brand new additive substance cnidium lactone is developed for weaned piglet diarrhea, and the cnidium lactone serving as a plant extract is safe, free of toxic and side effects, remarkable in effect of preventing weaned piglet diarrhea and suitable for large-scale application and popularization.

The invention provides a traditional Chinese medicine composition for improving the survival rate of piglets and a preparation method and application thereof, and belongs to the technical field of feed additives. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 6 to 10 parts of fructus forsythiae, 15 to 22 parts of radix isatidis, 15 to 22 parts of radix scutellariae, 8 to 12 parts of honeysuckle flower, 5 to 8 parts of herba taraxaci, 10 to 15 parts of rhizoma atractylodis macrocephalae, 8 to 12 parts of poria cocos, 6 to 10 parts of rhizoma dioscoreae, 12 to 18 parts of radix astragali seu hedysari, 8 to 12 parts of radix bupleuri, 5 to 8 parts of liquorice root and 3 to 6 parts of semen ziziphi spinosae. Based on the traditional Chinese medicine theory of supporting healthy energy and giving consideration to both symptoms and root causes, a three-dimensional synergistic system of clearing heat, resisting bacteria, invigorating spleen, benefiting intestines, tonifying qi and resisting stress is constructed to adapt to the physiological characteristics of weaned piglets, so that the problems of low survival rate, slow growth and substandard quality in weaned piglet breeding are solved, and the survival rate of the weaned piglets is remarkably improved.

This invention discloses the application of a porcine-derived Bacillus in antioxidant activity, wherein the porcine-derived Bacillus is used to prepare antioxidant products. The porcine-derived Bacillus is Bacillus subtilis YB-X-721, classified as Bacillus subtilis, and was deposited at the China General Microbiological Culture Collection Center on November 10, 2023, with accession number CGMCC No. 28942. The fermentation supernatant, bacterial suspension, and cell-free extract of the porcine-derived Bacillus subtilis YB-X-721 of this invention all possess certain DPPH free radical, superoxide anion free radical, and hydroxyl free radical scavenging abilities, as well as a certain reducing ability, and can be used to prepare antioxidant products. Furthermore, when the porcine-derived Bacillus subtilis YB-X-721 of this invention is added to piglet feed as an animal feed additive, it can improve the growth performance of weaned piglets, significantly increasing average daily weight gain, and significantly reducing average daily feed intake, feed conversion ratio, and diarrhea rate.

The invention provides application of D-mannose in preparation of a product for improving intestinal mucosa immunity and / or intestinal flora homeostasis of weaned piglets, and particularly belongs to the technical field of weaned piglet breeding. The invention provides application of D-mannose in preparation of a product for improving intestinal mucosal immunity and / or intestinal flora homeostasis of weaned piglets. The D-mannose is derived from a natural plant, can stably and efficiently improve intestinal mucosa immunity and intestinal flora homeostasis of the weaned piglets, relieves diarrhea, and improves the growth performance of the weaned piglets at the same time. Specifically, D-mannose can improve the growth performance of weaned piglets, reduce the diarrhea rate, improve the intestinal structure, enhance the chemical barrier function of the intestinal tract, reduce the abundance of harmful bacteria in the intestinal tract and increase the content of short-chain fatty acid producing bacteria.

The invention relates to the technical field of preparation of feed additives, in particular to a traditional Chinese medicine compound feed additive for preventing stress syndromes of early weaned piglets and a preparation method of the traditional Chinese medicine compound feed additive. The medicine specifically comprises the following components: rhizoma osmundae, astragalus membranaceus, mangnolia officinalis, hawthorn, medicated leaven, pericarpium citri reticulatae, polygala tenuifolia, Chinese pulsatilla root, cortex fraxini, poria cocos, liquorice and spina date seed. The traditional Chinese medicine compound feed additive provided by the invention has a remarkable technical effect in the aspect of preventing the early-stage weaned piglet stress syndrome. Through scientific compatibility of various traditional Chinese medicine components, the additive can effectively improve the digestive function of the weaned piglets, enhance the immunity, relieve the stress response and remarkably reduce the diarrhea rate and the death rate. Experimental results show that piglets using the additive are superior to a blank control group and other substitution groups in the aspects of weight gain, oxidation resistance, serum hormone level, immune globulin indexes and the like, and the additive is proved to have a comprehensive physiological regulation function.

The invention relates to the field of veterinary biological products, in particular to a porcine epidemic diarrhea virus attenuated strain and a vaccine and application thereof. The porcine epidemic diarrhea virus attenuated strain provided by the invention is obtained through in-vitro separation culture and continuous five rounds of plaque purification and screening technology, and has stable culture characteristics. Meanwhile, the virulence of the strain on newborn piglets and weaned piglets is remarkably reduced, and the virulence does not have the phenomenon of reversion after continuous passage for five times in a pig body. The strain has good immunogenicity, and mucosal immunity and systemic immune response of an organism can be activated at the same time by adopting an oral immunization mode. A neutralizing antibody of 1: 8-1: 16 can be detected in oral fluid and serum after the piglets are immunized for 14 days, and a large amount of sIgA is generated in milk after the pregnant sows are immunized, so that the piglets obtain effective passive immune protection.

The present application relates to a kind of fat powder for reducing weaning piglet dead rate and its preparation method and application, and the composite lipid in the preparation raw material of fat powder includes 1,3-di-oleic acid-2-palmitic acid triglyceride, 24 degrees palm oil, rice bran oil, coconut oil, linseed oil, caprylic triglyceride, capric acid triglyceride, alpha-lauric acid monoglyceride and tributyrin.The present application develops the fat acid composition close to pig milk fat structure, let piglet continue lactation period in weaning period to enable approach mainly with lipid, meet the compound energy demand of fast, medium and slow, avoid falling into energy potential difference;And the specific combination of medium and short chain fatty acids, both can improve the energy efficiency of weaning piglet, also have bacteriostatic disease characteristics, can improve the immunity of piglet, reduce the diarrhea rate.This composite lipid overcomes the problem such as piglet energy deficiency and indigestion caused by single raw material oil due to unsuitable lipid structure, can significantly reduce weaning stress, reduce the diarrhea rate and dead rate.

The invention relates to the technical field of microbial fermentation, in particular to a preparation method and application of a digestible biological protein fermentation material. According to the fermentation method, candida utilis serves as a fermentation strain, industrial and agricultural waste glucose mother liquor and corn steep liquor serve as substrates, high-yield mycoprotein is obtained under the relative low-temperature fermentation condition of 20-25 DEG C, and the obtained fermentation liquor is subjected to single enzymolysis, so that a fermentation material easier to digest is obtained. When weaned piglets are fed with the obtained fermented material, the diarrhea rate of the piglets can be effectively reduced.

The invention relates to a low-residual zinc complex feed additive and a preparation method and application thereof, and belongs to the technical field of feed additives. The zinc element in the feed additive exists in the form of a small peptide zinc complex, the chelating strength coefficient of the small peptide zinc complex is not lower than 850, and the zinc retention rate after the small peptide zinc complex is digested in simulated gastric juice for 2 hours is not lower than 95%. The preparation method comprises the following steps: carrying out enzymolysis on protein to obtain a small peptide solution, then carrying out complex reaction on the small peptide solution and zinc salt under the coupling condition of pulse ultrasound and gradient heating, and then carrying out dynamic pH refining and drying. Through a unique coupling technology, the problems that conventional organic zinc gastric juice is poor in stability and poor in effect under the low addition amount are solved, the prepared additive can achieve the anti-diarrhea effect equivalent to that of 1200-1600 mg / kg zinc oxide with the low addition amount of 300-600 mg / kg (in terms of zinc element) in daily ration of weaned piglets, meanwhile, the zinc discharge amount of excrement is reduced by 80% or above, and the production cost is reduced. Unification of efficient replacement and low residue is realized.

The invention belongs to the technical field of animal nutrition and feed, discloses an application of a Fuzhuan tea extract in prevention of vomitoxin-caused piglet health injury, and particularly relates to an application of the Fuzhuan tea extract as a feed additive in prevention or improvement of piglet health injury. The feed additive can effectively reduce negative effects on weaned piglets caused by excessive vomitoxin in the feed, wherein the negative effects comprise growth performance reduction, diarrhea rate increase, intestinal morphology damage, intestinal cell proliferation inhibition, intestinal epithelial barrier injury, immune disorder, abnormal liver function and excessive oxidative stress and inflammatory response.

The invention discloses clostridium butyricum, a clostridium butyricum preparation for preventing and controlling African swine fever virus and application of the clostridium butyricum preparation, and belongs to the technical field of microorganisms. The clostridium butyricum JBH-KOLONIZER BD-10 serving as a fermentation strain is preserved in the China Center for Type Culture Collection, and the preservation number of the clostridium butyricum JBH-KOLONIZER BD-10 is CCTCC (China Center for Type Culture Collection) NO: M 20231636. The clostridium butyricum fermentation liquor disclosed by the invention has an obvious inhibition effect on the replication of the African swine fever virus. The clostridium butyricum is used as a fermentation strain to prepare the clostridium butyricum microbial preparation, and the clostridium butyricum microbial preparation is added into pig complete feed, so that African swine fever virus replication can be effectively inhibited, oxidative stress can be relieved, the non-specific antibody level of weaned piglets can be improved, and pig herd health can be promoted. In addition, the clostridium butyricum preparation is free of drug resistance and toxic and side effects after being applied to swinery and has the advantages of being low in cost, high in safety and environmentally friendly.

This invention belongs to the technical field of livestock breeding equipment and discloses an intelligent feeding system and method for early-weaned piglets. The system includes: a feed silo unit for storing and automatically conveying milk replacer powder; a milk mixing station unit connected to the feed silo unit for receiving the powder and automatically mixing it with water at a controllable temperature to form liquid milk; a conveying pipeline unit connected to the outlet of the milk mixing station unit for conveying milk, the conveying pipeline unit including a circulation pipeline and a milk return control valve; and at least one end-feeding unit that supplies milk to the piglets through the conveying pipeline unit. The milk mixing station unit can circulate the milk at regular intervals through the circulation pipeline and the milk return control valve. This invention provides an intelligent feeding system and method for early-weaned piglets, which achieves automated feeding, greatly reducing manual labor; at the same time, it ensures controllable milk-to-water ratio and temperature during feeding, thereby improving the survival rate, health, and growth rate of piglets.

The invention relates to the technical field of breeding, in particular to a composition for relieving vomitoxin harm of weaned piglets and a preparation method and application of the composition. The composition is prepared from the following components in parts by weight: 50 to 70 parts of glucurolactone, 10 to 15 parts of cynarin, 20 to 40 parts of scutellaria baicalensis flavone, 10 to 20 parts of stevia rebaudiana extract and 80 to 120 parts of a carrier. The composition can be used for effectively relieving the symptoms of diarrhea, weight loss and intestinal dysfunction of weaned piglets.

A plant-derived composition having an essential oil core and a herbal powder is used to feed weaned piglets. PW piglets provided with a basal feed supplemented with these plant-derived compositions have improved growth performance. The essential oil core comprises three essential oils.

The invention discloses a daily ration composition for improving growth performance and health of weaned piglets and application of the daily ration composition. The daily ration composition is formed by adding dihydroquercetin into basic daily ration serving as a carrier of weaned piglets, and the dihydroquercetin is added into the basic daily ration according to the proportion of 100 mg / kg. According to the invention, 100 mg / kg of dihydroquercetin is accurately added into the daily ration of the weaned piglets, so that the average daily gain of the piglets can be remarkably increased, the feed-gain ratio and the diarrhea rate can be reduced, meanwhile, the antioxidant enzyme activity and the immune globulin content of serum can be increased, the morphological structure of intestinal tracts can be improved, and no adverse effect is caused to the liver, the kidney, the spleen and other organs of the piglets.

The application belongs to the technical field of microorganisms, and particularly discloses a bacillus velezensis DZ-4-002 and application thereof. Bacillus velezensis The bacillus velezensis DZ-4-002 provided by the application has a Latin name of CGMCC No. 25955. The strain can not only produce a high yield of nitrite reductase, but also improve the growth performance of animals and the milk production performance of dairy cows. Within the experimental range of the application, the bacillus velezensis provided by the application can not only improve the egg production increase rate, average egg weight and feed utilization rate of laying hens, but also improve the average daily weight gain, average daily feed intake and feed utilization rate of weaned piglets, and the average milk yield, milk-feed ratio and lactose content in milk of dairy cows. The application has a good application prospect in the fields of nitrite degradation agents, feed and additives thereof.

The invention discloses a method for measuring the demand amount of amino acid under a low-protein daily ration, and a low-protein daily ration feed for weaned piglets obtained according to the method, the mass fraction of crude protein in the feed is less than or equal to 16.5%, and the mass ratio of standard ileum digestible histidine to standard ileum digestible lysine in the feed is 0.28-036. According to the invention, the demand amount of the histidine in the daily ration in the early and later periods of the weaned piglets is determined through a design test, and reference is provided for the preparation of the daily ration formula of the weaned piglets according to the demand amount data, so that the low-protein daily ration feed capable of meeting the growth requirements of the weaned piglets is obtained. By supplementing crystal histidine into the daily ration of the weaned piglets, the protein level of the daily ration can be further reduced to a certain extent, but the growth performance of the piglets is not influenced.

The invention belongs to the technical field of livestock and poultry feed additives, and particularly relates to application of a dogwood extract in preparation of a compound feed for relieving diarrhea and enteritis, and the dogwood extract is an aqueous extract of a dogwood medicinal material. 500mg-2000mg of the dogwood extract is added into each kilogram of the basal feed, so that the compound feed is obtained. The compound feed can relieve diarrhea and intestinal inflammation of weaned piglets, especially at the 21-35-day-old stage, the diarrhea occurrence rate of the weaned piglets can be remarkably reduced by 15% or above, meanwhile, the average daily gain is increased, the feed-gain ratio is reduced, the comprehensive growth performance is better than that of a control group, the level of pro-inflammatory cytokines in IPEC-J2 cells or intestinal mucosa tissues is remarkably reduced, and the weaned piglets are prevented from suffering from diarrhea and intestinal inflammation. Meanwhile, the level of anti-inflammatory cytokines is up-regulated, and excessive activation of an NF-kB key inflammatory signal channel can be inhibited.

The invention discloses application of a herba houttuyniae polysaccharide extract in a feed capable of improving intestinal health of piglets, the feed comprises the herba houttuyniae polysaccharide extract and a basic feed, and the application method of the herba houttuyniae polysaccharide extract comprises the following steps: adding the herba houttuyniae polysaccharide extract into the basic feed, and continuously feeding 21-28-day-old weaned piglets for 28 days, the intestinal flora structure of weaned piglets is adjusted through the houttuynia cordata polysaccharide extract, short-chain fatty acid secretion is promoted, and the intestinal morphology is improved, so that diarrhea prevention and intestinal health improvement are achieved; the herba houttuyniae polysaccharide extract is prepared from the following components in percentage by mass: 20 percent to 21.6 percent of herba houttuyniae polysaccharide, 5 percent to 10 percent of volatile oil, 25 percent to 35 percent of flavonoid, 10 percent to 15 percent of total amino acid, 3.1 percent to 6.1 percent of alkaloid, 3 percent to 10 percent of organic acid and 1.5 percent to 5.5 percent of sterol, and the herba houttuyniae polysaccharide is prepared from glucose, galactose, mannose, arabinose and xylose. The invention aims to improve the survival rate of early weaned piglets, shorten the breeding cycle of a farm and improve the reproductive performance.

The invention discloses a feed additive for improving oxidation resistance of weaned piglets and improving intestinal morphological integrity and application of the feed additive. It is found for the first time that when gamma-PGA of different doses is added into weaned piglet feed, the growth performance of weaned piglets can be remarkably improved, the apparent digestibility of nutrient substances in the feed is improved, the intestinal morphological integrity of small intestines is improved, and jejunum antioxidant enzyme activity and gene expression are promoted. The application of the feed additive is expected to improve the oxidation resistance of the weaned piglets and promote the intestinal morphological integrity of the piglets, and the feed additive has a wide application prospect in actual breeding production. In addition, the invention provides a new solution thought and method for improving animal growth performance and maintaining intestinal morphological integrity.

The invention discloses a method for testing the influence of magnesium potassium sulfate on the growth of weaned piglets, which comprises the steps of in-vitro simulated digestive tract test and in-vivo animal test, preparation of simulated stomach and intestine digestive juice, detection of the dissociation rate of magnesium potassium sulfate in the simulated digestive juice, selection of 216 21-day-old weaned piglets, and random division of the 216 21-day-old weaned piglets into 6 groups, and relates to the technical field of livestock breeding. According to the method for testing the influence of the magnesium potassium sulfate on the growth of the weaned piglets, the dissociation and absorption rules of potassium and magnesium ions in the magnesium potassium sulfate in duodenum, jejunum and ileum of the weaned piglets are defined through in-vitro tests, and a theoretical basis is provided for dose design of in-vivo tests.

The invention belongs to the technical field of materials, and discloses a preparation method and application of novel tannic acid. The invention discloses a tannic acid product. The tannic acid product is prepared from the following raw materials: tannic acid, polypeptide, amino acid and a thickening agent. The tannic acid product provided by the invention has no obvious bitter taste, compared with a pure tannic acid product, the tannic acid product provided by the invention has a better intestinal slow-release effect, can better pass through the stomach without being damaged, and can effectively improve the palatability of the tannic acid in breeding application, so that the tannic acid can better play a better role in animal bodies. The tannic acid product is low in cost and simple to add, and the weight gain can be remarkably increased, the feed conversion ratio can be improved, the diarrhea rate can be reduced and the production performance of weaned piglets can be remarkably improved by adding 0.2 wt% of the tannic acid product into the basic ration at the weaning stage.

Various embodiments relate to monoglyceride use in animals such as post-weaning pigs. A method of feeding an animal includes feeding the animal a diet comprising one or more monoglycerides. Various embodiments provide concentrates, premixes, top dresses, or complete feeds for carrying out the method and methods of making the same.

The invention provides a method for improving the production efficiency of weaned piglets after long-term transportation, and belongs to the technical field of livestock breeding. Comprising the following steps: (1) after transportation is completed, determining a drinking water additive according to transportation time t and transportation temperature T; the drinking water additive comprises one or more of ginger powder, an astragalus extract, vitamin C, cane sugar and cinnamyl aldehyde; (2) after the transportation is completed, performing staged feeding management on the weaned piglets; 3, within 6-8 days after transportation is completed, air aerosol is sprayed to the pig house every day; the air aerosol comprises the following components: benzalkonium bromide and rosemary essential oil. According to the method, heat stress or transportation stress possibly generated in the transportation process of the weaned piglets can be relieved, the survival rate of the piglets from the transportation completion to the nursing stage is increased, the diarrhea rate is reduced, the fattening period is shortened, and the production and economic benefits are remarkably improved.

The invention relates to the technical field of animal feed additives, in particular to a composition with bacteriostatic activity and application thereof. A screening antibacterial experiment of the plant essential oil and the organic acid shows that the composition of the plant essential oil and the organic acid, which is reasonably proportioned, has remarkable antibacterial activity on escherichia coli, salmonella typhimurium, shigella flexneri and clostridium perfringens, and particularly has a very good synergistic interaction effect. The composition of the plant essential oil and the organic acid is preferably thymol, carvacrol and sorbic acid, and the optimal compounding ratio is 3: 1: 1. The plant essential oil and organic acid composition provided by the invention has the advantages of being good in antibacterial effect, low in production cost, natural, non-toxic and the like, provides an effective treatment means for weaned piglets with bacterial diarrhea, and has huge potential commercial value.

The application discloses application of bile acids in weaning piglet feeding and relates to the field of piglet breeding, and aims to solve the problem that different types of bile acids have unclear effects on piglets in the prior art. The technical scheme is that optimal bile acids corresponding to different purposes are provided in the growth process of piglets. By selecting optimal bile acids for different biological sign improvement targets, the use of different types of bile acids is more clear, and the growth of piglets is more controllable.

The present application relates to the technical field of feed, in particular to a functional protein feed produced by using enzymatic decoupling fermentation process to treat the meal and a preparation method thereof. The method mixes double-low rapeseed meal, de-phenol cottonseed protein and peanut meal according to a specific ratio, and sieves to obtain coarse phase and fine phase. By adding slow-release type embedded acid protease wet capsules (type B) to the fine phase, adding fast-release type embedded acid protease wet capsules (type A) to the coarse phase, and adopting the process of swelling the fine phase first and then carrying out anaerobic fermentation with the coarse phase, the time sequence and space control release of the protease in the fermentation process are realized. The technology significantly improves the enzymatic hydrolysis efficiency of protein and the degradation effect of anti-nutritional factors, and the final product has high nutritional value and can effectively improve the growth performance of weaned piglets.

The invention belongs to the technical field of pig feed, and relates to a weaned piglet creep feed capable of enhancing immunity and resisting diarrhea and a preparation method of the weaned piglet creep feed. The weaned piglet creep feed comprises basic raw materials such as puffed corn, broken rice, puffed soybeans, fermented soybean meal, soybean milk powder and fish meal, and a creep core material; the core material contains an egg yolk antibody IgY resisting escherichia coli K88 and plant polysaccharide compounded by sweet wormwood herb polysaccharide, inulin polysaccharide and salvia miltiorrhiza polysaccharide in proportion. Through the synergistic effect of the specific egg yolk antibody and the immunocompetence polysaccharide, the immunity of piglets is remarkably enhanced, pathogenic bacteria colonization is inhibited, and the diarrhea rate is effectively reduced. The invention also provides a corresponding preparation method. The preparation method comprises the processes of raw material crushing, segmented mixing and granulation. The creep feed is comprehensive in nutrition and good in digestion and absorption, can promote the growth performance of weaned piglets, and meets the requirements of green and healthy breeding.