44 results about "Meats poultry" patented technology

The invention relates to a preparation method of a hydrolyzed protein mixture and a protein peptide powder feed additive, wherein a multienzyme complex enzyme method is used for hydrolyzing vegetable protein to prepare the hydrolyzed protein mixture and protein peptide powder. The technology of the method is simple, and a non-starch polysaccharide enzyme and a proteinase are compounded so as to be capable of improving the hydrolyzation rate and degree of protein as well as the utilization rate of feed and reducing the production cost. Products prepared by the preparation method can be used as the feed additive to be capable of significantly improving the laying rate of egg-laying poultry, improving the weight increment of meat poultry, reducing the feed-meat rate and improving the production performance of table poultry as well as reducing the incidence rate of diarrhea in young animals and the feed-meat rate of piggy; and the preparation method is applied to aquatic livestock to be capable of improving the weight increment of fish and reducing the bait coefficient and content viscosity in the intestinal tract.

The invention relates to a meat and poultry steady breeding farm and a dorking steady breeding method. The meat and poultry steady breeding farm comprises a house provided with a passage and a breeding net, wherein an air duct arranged below the passage uniformly distributes the air for the house through an air-distributing port; the outsides of front and rear walls of the house are provided with longitudinal dung discharging ducts; an air extracting chimney is arranged above each dung discharging duct; and a corresponding dung discharging slope is arranged below the breeding net so that the poultry dung falling on the dung discharging slope is discharged to the dung discharging duct through a dung discharging port at the wall foot of the house. Due to the natural air flow formed by wind pressure and hot pressure in the breeding farm, the harsh microclimate in the poultry house, such as dead corner, evil wind and the like, can be avoided, so that the air inside and outside the poultry house can be exchanged and the air in the house is kept fresh all year; the breeding farm has reasonable overall layout and complete function, which facilitates the control of each environmental index in the house and creates a condition for the domestic poultry to play the maximum production and genetic potential; the disinfection load is reduced, the using amount of the health-care medicine is reduced, the entire breeding is steady and the epidemic situation is improved, the power and heat preservation consumption is low, and the breeding efficiency can be greatly improved.

The invention discloses the application of fucose serving as an animal feed additive. The addition final concentration of the fucose is 0.01-2% (weight percentage content). The fucose is added into animal feed, which can increase the feed quality and growth performance and slaughtering performance of poultry. The fucose can be widely applied to the animal husbandry production and processing industries of domesticated animal products.

Processing apparatus and method for meat, poultry and fish products include multiple successive immersions in sanitizing solutions at different successive temperatures within controlled environments including at fluid pressures different from ambient pressure to reduce resident microbial contaminants in preparation for packaging and distribution.

The invention discloses a fatty-liver goose feeding diet which comprises the following raw materials in percent by weight: 96-98 percent of small peeled yellow maize particles, 1.5-2.5 percent of edible soybean oil, 0.5-1.5 percent of salt, 0.01-0.03 percent of table poultry compound vitamin without containing choline, 0.05-0.10 percent of table poultry trace element additive, 0.006-0.012 percent of table poultry compound enzyme, 0.1-0.2 percent of microbial ecological agent and 0.01-0.02 percent of xanthophylls. Compared with the traditional feeding technology, the feeding technology provided by the invention has the advantages that: the feeding diet is reasonably prepared according to the characteristics of goose liver deposition to the nutrients, the growth of the fatty-liver goose can be remarkably promoted, the hepatonecrosis is prevented, the deposition of the fat of the goose liver is promoted, the weight and the quality of the fatty-liver goose are remarkably improved and the utilization rate of feed is high. Meanwhile, the stress reaction of the feeding goose can be reduced, and the death rate of the goose is lowered.

The invention discloses a cysteamine hydrochlorate compound premix material for increasing the weight of meat poultry, and a method for preparing the same, wherein 10 to 30 portions of vitamin A, 3 to 10 portions of vitamin D3, 3 to 10 portions of vitamin E and one fifth to four fifths of 50 to 800 portions of xylo-oligosaccharide are evenly mixed, 0.5 to 1.5 portions of vitamin B2, 0.003 to 0.009 portion of vitamin B12, 0.50 to 1.0 portion of folic acid and one tenth to one fifth of 50 to 800 portions of xylo-oligosaccharide are evenly mixed, and the mixtures is evenly mixed with 100 to 900 portions of cysteamine hydrochlorate clathrate, 8 to 20 portions of methionine, 5 to 30 portions of lysine, 5 to 20 portions of solid emulsifier, 2 to 10 portions of glutamine and the remained carrier xylo-oligosaccharide to prepare the premix material. The compound premix material can supplement vitamins and amino acids needed for fast growth of meat poultry, strengthen the digestion, absorption and utilization of energy and nutrient substances such as nitrogen, calcium, phosphorus, and the like, improve the carcass merit, increase the meat factor, enhance the immunity function of organism, improve the illness resistant capability and the stress resistant capability, enforce the digestion and absorption of proteins and fats, improve the number of helpful bacteria in intestinal canals, enforce the digestion and absorption of nutrient substances and improve the feed conversion rate. The cysteamine hydrochlorate compound premix material can not only increase the producibility of meat poultry but also improve the meat quality.

The invention discloses a feed additive for improving the flavor of livestock meat and prolonging the shelf life of the livestock meat. The feed additive comprises the following main raw material components in part by weight: 1 to 5 parts of magnesium methionine, 4 to 8 parts of insect chitosan or / and selenoprotein, 1 to 5 parts of sodium glutamate, 1 to 5 parts of premix for use in livestock latter fattening period and 0.5 to 1 part of vitamin. The feed additive prepared by the invention can be added into livestock feed directly. When the livestock are fed by the feed containing the additive, the normal metabolic function of the digestive system, particularly the liver tissue, of the livestock can be maintained; the accumulation amount and position of the metabolic reactions of the fat, proteins, micro elements and the like can be regulated; and finally, the flavor of the livestock meat can be improved and the shelf life of the livestock meat can be prolonged. The raw materials of the invention are widely available and can be purchased in market easily; the preparation process is simple; and the feed additive is convenient to use and environmentally-friendly, and avoids any harmful residue.

The invention discloses a poultry compound acidifier. The compound acidifier includes liquid mixed acid, solid acid, a bactericidal inclusion compound and a carrier; and based on 1 kg of the compoundacidifier, the liquid mixed acid includes 100.0-200.0 g of lactic acid, 100.0-200.0 g of ammonium formate, 15.0-30.0 g of acetic acid and 20.0-40.0 g of ammonium propionate, the solid acid includes 100.0-200.0 g of anhydrous citric acid and 200.0-300.0 g of benzoic acid, the content of the bactericidal inclusion compound is 3.0-4.0 g, and the content of the carrier is 200.0-300.0 g. A preparationmethod of the compound acidifier is provided. The growth of poultry, metabolic rates and feed utilization rates can be enhanced to a certain extent by adding the provided acidifier into poultry feed,and the total number of microorganisms in poultry manure and the number of escherichia coli can be obviously reduced; and after the compound acidifier is added into the poultry feed, the improvement trend of poultry laying rates, average egg weight and feed-egg ratio can be achieved, the metabolic rates of nutrient substances can be significantly increased, and soft water stool rates, broken and soft egg rates and the hardness and thickness of eggshells can be obviously improved.

The invention relates to an ultraviolet flavoring method during air drying and cooking of salted and preserved poultry meat products, which belongs to the field of food processing. The method comprises the following steps of killing and treatment of poultry meat, preserving, ultraviolet flavoring (the power of an ultraviolet lighting tube is 30 watts, the wavelength of the ultraviolet lighting tube is 253.7 nanometers, the radiation intensity of the ultraviolet lighting tube is between 90 and 110 mu W / cm<2>, the distance between the poultry meat and the lighting tube is between 1.5 and 1.8 meters, the ambient humidity is between 10 and 13 DEG C, and the irradiation time is between 2 and 3 hours), and cooking after temperature control, humidity control, wind speed control and air drying. By applying GC / MS to analyze the flavor and the compositions of the product, compared with the prior common technical product, the total peak area of flavoring substances after ultraviolet flavoring isincreased by more than 20 percent; and the evaluating result of sensory organs also shows that the product after being subjected to ultraviolet flavoring has greatly improved preserved smell and superior flavor. The technology for producing the salted and preserved poultry meat products provided by the method has low production cost, good flavor of the products and simplified technique, and is suitable for industrial production.

The invention provides a poultry feed, namely a poultry feed including eleutheroside and composite probiotic. The poultry feed capable of reducing subcutaneous and viscera fat deposition of the poultry feed, and is characterized by comprising the eleutheroside, the composite probiotic, honey and a basic feed, wherein the eleutheroside to a total weight of the poultry feed is 0.1-4.0%, the composite probiotic to the total weight of the poultry feed is 1.0-6.0%, the honey to the total weight of the poultry feed is 0.5-6.0%, and the basic feed to the total weight of the poultry feed is 84.0-98.4%. The composite probiotic comprises the following components in mass ratio: 30-55% of Bacillus licheniformis, 35-45% of bifidobacterium and 35-45% of lactic acid bacillus, the number of viable count of the Bacillus licheniformis is not less than 200,000,000 / g, and the spore forming rate is larger than 85%; the viable count of the bifidobacterium is not less than 107 / g, and the spore forming rate is larger than 87%; and the viable count of the lactic acid bacillus is not less than 107 / g. The poultry feed including the eleutheroside and the composite probiotic, disclosed by the invention, fully exerts effects of the eleutheroside and the composite probiotic, and after the eleutheroside and the composite probiotic are added to the poultry feed, the subcutaneous and viscera fat deposition can be remarkably reduced, the disease resistance rate is strengthened, the meat quality is modified, and economic benefit and social benefit are remarkable.

The invention belongs to the field of livestock poultry release products of plant extracts, and particularly relates to kosteletzkya virginica root powder of plant raw materials as well as a use method and the use of refined extracts of the kosteletzkya virginica root powder. The kosteletzkya virginica (of which the scientific name is kosteletzkya virginica) is a variety under malvaceae kosteletzkya virginica. The kosteletzkya virginica root powder is selected from underground root tubers of kosteletzkya virginica, and is superfine powder higher than 120 meshes, which is obtained through a special technology. The kosteletzkya virginica root powder comprises the main components of flavone (which is larger than or equal to 0.35%), saponin (which is larger than or equal to 1.0% ) and polysaccharide (which is larger than or equal to 3.3%) of a kosteletzkya virginica source, and a root powder refined extract comprises the three main functional components of flavone (which is larger than or equal to 3%), saponin (which is larger than or equal to 10%) and polysaccharide (which is larger than or equal to 10%). As for the use of the kosteletzkya virginica root powder, the kosteletzkya virginica root powder is used as a feed additive in the breeding process of birds for meat, is used for producing premix feeds, concentration materials or complete formula feeds and other types of release products for birds, which contain the kosteletzkya virginica root powder, and is used for replacing feed antibiotic or reducing the use or the addition of the feed antibiotic.

The invention discloses a Chinese herbal medicine feed additive. The feed additive comprises the following components by weight: 63-70 of solid psidium guajava raw material, 2-4 of radix gentianae, 7-13 of radix isatidis, 3-7 of honeysuckle and 13-17 of vine of multiflower knotweed, wherein the solid psidium guajava raw material, radix gentianae, radix isatidis, honeysuckle and vine of multiflower knotweed are powder with grain size being 50-100 meshes. The feed additive has the following beneficial effects that the product belongs to the Chinese herbal medicine premix, is all natural and residue-free, promotes production and increases the capacity and the economic benefits; the product can improve the daily gain of poultry, reduce the feed conversion ratio, replace the antibiotic in the feed and play a role in preventing diseases; and the utilization ratios of the active ingredients of psidium guajava are increased from the original 30% to 80%.

The invention discloses a blockchain-based meat and poultry supply chain traceability system, which comprises a data acquisition device for acquiring product information and environment information, and a visual interaction device for interacting user information, product information and environment information with a user; a data server which is used for receiving, storing and managing the user information, the product information and the environment information, and a blockchain server which is used for processing and verifying the user information, the product information and the environment information; a data acquisition device which acquires acquired information, the acquired information is displayed through the visual interaction device, the visual interaction device interacts with a user to obtain user information, the visual interaction device sends the acquired information and the user information to the data server for storage and management, and precursor information is verified through the blockchain server; according to the non-centralized data system based on blockchain data storage, the data are more transparent and shared, and the data credibility and the data credibility are improved.

The invention discloses a meat refrigeration pot with dry ice as a cold source. The meat refrigeration pot comprises a pot body made of heat insulation materials, and an inner pot made of heat insulation materials is arranged in the pot body. The inner pot has an inner cavity for receiving aquatic products and meats and a pot opening extending out of the pot body, and a heat insulation plug made of heat insulation materials is arranged on the pot opening. The wall portion of the inner pot has a bi-layer structure including an inner wall and an outer wall, and a vacuumed cavity is arranged between the inner wall and the outer wall, which are combined into one body at the pot opening. The inner wall and the outer wall of the inner pot are coated with a coating layer made of spatial reflection heat-insulation paint. The meat refrigeration pot is simple in structure, scientific and reasonable in material selection, excellent in refrigeration performance and is highly efficient and insulating. No dry ice and other cold sources have to be frequently added, labor and cold sources can be saved. The meat refrigeration pot lowers transportation cost, and is suitable for storage and long-distance transportation of aquatic products and meats.

The invention discloses a disease resisting and growth promoting additive for poultry and a production method thereof. The additive is composed of the following components in parts by weight: 20 to 60 parts of bacillus subtilis, 20 to 50 parts of lactobacillus, 20 to 60 parts of lysine, 3 to 10 parts of vitamin U, and 25 to 65 parts of carrier, wherein the carrier is composed of 3 to 10 parts by weight of sodium bicarbonate, 3 to 10 parts by weight of corn starch, and 3 to 10 parts by weight of glucose. The provided additive can effectively enhance the immunity of poultry and promote the growth. Compared with the prior art, the production technology is simple and convenient, the effect is definite, and the formula is scientific.

The invention discloses lactobacillus plantarum for improving lipid metabolism and muscle quality of meat poultry and application of the lactobacillus plantarum. The lactobacillus plantarum is lactobacillus plantarum ZRR, the preservation number of the lactobacillus plantarum is CCTCC No: M2016281, and the lactobacillus plantarum can degrade different cholate at the same time and has the advantages of improving the growth performance and slaughter performance of the meat poultry, improving the lipid metabolism and muscle quality of the meat poultry and the like. The lactobacillus plantarum can be widely applied to meat poultry breeding, promotes healthy breeding of meat poultry, and improves breeding benefits.

The invention discloses automatic suspension running water cleaning integrated equipment for slaughtering, and relates to the technical field of food processing. The integrated equipment comprises a rack, an annular rail conveying line, a hanging hook, a primary cleaning box, an ultrasonic cleaning tank, a rinsing tank and an air drying box, the annular rail conveying line is installed at the top end of the rack, and the hanging hook is installed on the annular rail conveying line. According to the automatic suspension running water cleaning integrated equipment for slaughtering, the annular rail conveying line is matched with the hanging hook, annular circulation production can be achieved, cleaning can be conducted on a large scale, the limited operation space of a slaughter house can be utilized more efficiently through the annular design, the occupied area is saved, the cleaning action time is prolonged, and the cleaning efficiency is improved; and by means of the ultrasonic cleaning tank and the rinsing tank, ultrasonic cleaning and spraying cleaning are organically combined, dirt on the surfaces of cleaned meat poultry is rapidly damaged and falls off, the dual cleaning effect is achieved, and meanwhile the operation load of equipment is reduced.

The invention relates to a modern method for processing special poultry, belonging to the field of food processing. The method researches processing theories and modern key technologies of Chinese traditional poultry meat products, breaks through the modern key processing technologies of poultry meat products, such as a modern sterilization technology, a rapid fermentation technology, a modern pickling technology, an oxidative stability control technology, a flavor control technology, a large-scale industrialized engineering technology, and the like and develops a series of safe, health and novel poultry meat products with traditional flavor specialties.

The invention provides a preparation method of a fermented feed containing hybrid broussonetia papyrifera. The preparation method comprises the following steps: mixing raw materials containing hybrid broussonetia papyrifera powder, adding a complex microbial inoculant and a complex enzyme preparation, performing uniform mixing, and performing fermenting to obtain the final product. The preparation method of the feed is simple, the raw materials are easy to obtain, the growth performance, slaughter performance, health condition, pork quality and production performance of pregnant sows can be improved, the average daily gain of meat poultry can be increased, the feed-to-weight ratio is reduced, the laying rate and daily feed intake of laying poultry are increased, the egg breakage rate and death and culling rate are reduced, and the average daily egg weight is increased.

The invention provides a poultry food ingredient packet which belongs to the food processing field. In an adopted technical scheme, the poultry food ingredient packet is characterized by comprising fresh poultry and a batching packet. The batching packet comprises 1-5g of aniseed, 1-4g of Chinese prickly ash, 1-3g of cinnamon, 1-3g cardamom, 1g of clove, 1-3g of villous amomum, 1g of long pepper, 1-3g of Fructus Tsaoko, 1-6g of spiceleaf and 1-5g of cinnamon and the packet is sealed after being dried. Proper amount of meat and condiment are put in the food ingredient packet. Thus, people can select the food preparation packet more conveniently. The time for purchasing and distributing food ingredients can be saved. The condiment in the food ingredient packet has the effects of increasing freshness and removing fishy smell, strengthening spleen and appetizing and improving the family cooking quality.

The invention provides a wax spraying device for processing meat poultry, which is mainly used for waxing duck heads. The device comprises a suction mechanism, a liquid feeding mechanism and a liquidspraying mechanism, wherein the suction mechanism comprises a power source, a piston piece and a first liquid storage room; the piston piece is arranged in the first liquid storage room and is connected with the power source; the liquid feeding mechanism comprises a liquid feeding pipeline communicated with the first liquid storage room, and a wax feeding pipeline which is communicated with the liquid feeding pipeline and stretches into wax liquid; the liquid spraying mechanism comprises a second liquid storage room communicated with the first liquid storage room and a spraying nozzle communicated with the second liquid storage room; the first liquid storage room is used for sucking the wax liquid under the action of the suction mechanism and conveying the wax liquid into the second liquidstorage room; the wax liquid in the second liquid storage room is sprayed on meat poultry (duck) heads, which are placed downward, through the spraying nozzle. According to the wax spraying device provided by the invention, the power source is used for driving the piston piece to slowly do reciprocating motion in the first liquid storage room, so that a condition that the color of wax is changedafter be device is used for long time is avoided and the waxing effect is better.

The perilla fruit flavor meat is produced with perilla fruit and meat or fowl in the ratio of 1 to 10-20 and proper amount of other seasoning. The production process includes socking meat or fowl in water with perilla fruit and other seasoning and at 0-4 deg.c for 24-30 hr, wrapping meat or fowl with perilla leaf, cooking and bagging. The present invention combins perilla fruit, which has nutritive, healthy, preservative and sterilizing functions, with meat or fowl to make the meat or fowl possess unique flavor and delicious taste.

The invention discloses a device and method for reducing heat stress in poultry transportation in summer. The device is characterized by comprising a cooling chamber (1) and a cooling device (2); the cooling device (2) comprises a water supply unit (3), a spraying-ventilating unit (4) and a circuit unit. The method is a cooling method through using the device. According to the device and method for reducing the heat stress in poultry transportation in summer, fans (comprising a suction fan and axial flow fans) are used in combination with atomizing spray heads, so that the effects of atomizing spraying, three-dimensional ventilation and rapid cooling are achieved; processing quality of slaughtered poultry is effectively guaranteed, the conditions of water loss and meat quality softening are improved, meanwhile, production cost of an enterprise is reduced, and the needed device is simple, easy and convenient to operate, high in operability and suitable for being widely popularized and applied.

The invention relates to a preparation method of desalted cartilage oligopeptide powder. The preparation method comprises the following main processes of: taking meat poultry tracheas and cartilage as raw materials, performing cooking, enzymolysis and the like to obtain enzymatic hydrolysate, performing ultrafiltration separation to obtain chondroitin sulfate and oligopeptide liquid on an interception side and a permeation side respectively, and enabling the oligopeptide liquid to enter nanofiltration membrane equipment for desalting and pre-concentration treatment; firstly, concentrating a raw material solution by 3-5 times by adopting the nanofiltration membrane equipment, then performing continuous intermittent nanofiltration constant-volume desalting, namely adding pure water to maintain the volume in a tank body to be constant for percolation, and stopping operation until the conductivity of permeation liquid is lower than 100 microseconds / cm; then pumping nanofiltration membrane permeation liquid into reverse osmosis membrane equipment, and recycling water prepared by reverse osmosis in a nanofiltration dialysis stage; and performing vacuum evaporation concentration and spray drying on a nanofiltration membrane concentrated solution to obtain desalted oligopeptide powder, and recycling evaporated water obtained by evaporation concentration in a cooking stage. Oligopeptide prepared by the preparation method disclosed by the invention is active oligopeptide with the molecular weight lower than 2000 Da; the preparation method has better decolorization and odor removal effects, and the ash content of the oligopeptide powder is lower than 2 percent; and the preparation method has the advantages of water conservation, less sewage discharge, low cost and high quality of the oligopeptide powder.

The invention discloses a cysteamine hydrochlorate compound premix material for increasing the weight of meat poultry, and a method for preparing the same, wherein 10 to 30 portions of vitamin A, 3 to 10 portions of vitamin D3, 3 to 10 portions of vitamin E and one fifth to four fifths of 50 to 800 portions of xylo-oligosaccharide are evenly mixed, 0.5 to 1.5 portions of vitamin B2, 0.003 to 0.009 portion of vitamin B12, 0.50 to 1.0 portion of folic acid and one tenth to one fifth of 50 to 800 portions of xylo-oligosaccharide are evenly mixed, and the mixtures is evenly mixed with 100 to 900 portions of cysteamine hydrochlorate clathrate, 8 to 20 portions of methionine, 5 to 30 portions of lysine, 5 to 20 portions of solid emulsifier, 2 to 10 portions of glutamine and the remained carrier xylo-oligosaccharide to prepare the premix material. The compound premix material can supplement vitamins and amino acids needed for fast growth of meat poultry, strengthen the digestion, absorption and utilization of energy and nutrient substances such as nitrogen, calcium, phosphorus, and the like, improve the carcass merit, increase the meat factor, enhance the immunity function of organism, improve the illness resistant capability and the stress resistant capability, enforce the digestion and absorption of proteins and fats, improve the number of helpful bacteria in intestinal canals, enforce the digestion and absorption of nutrient substances and improve the feed conversion rate. The cysteamine hydrochlorate compound premix material can not only increase the producibility of meat poultry but also improve the meat quality.

The invention belongs to the field of plant extract livestock feed, and particularly relates to application methods and application of spartina alterniflora composite additive and refined extract thereof. The spartina alterniflora is a species belonging to gramineous spartina, and the spartina alterniflora composite additive is a composite preparation which is prepared by taking terrestrial stems and leaves of the spartina alterniflora as materials, preparing superfine powder with the particle size higher than 120meshes via a special process and supplementing by other natural plant active substances. The spartina alterniflora composite additive is mainly composed of more than or equal to 1.8% of flavone, more than or equal to 1.6% of saponin and more than or equal to 3.0% of polysaccharide of a spartina alterniflora source; the refined extract of the spartina alterniflora composite additive is mainly composed of more than or equal to 9% of flavone, more than or equal to 10% of saponin and more than or equal to 15% of polysaccharide. The spartina alterniflora composite additive and the refined extract thereof can be used as feed additives in the meat poultry farming process, used for producing premixed feed, concentrated feed or complete formula feed and other meat poultry feed containing the spartina alterniflora composite additive and the refined extract thereof and used for replacing or reducing feed antibiotics in use or addition.

The invention discloses a Chinese herbal medicine feed additive. The feed additive comprises the following components by weight: 63-70 of solid psidium guajava raw material, 2-4 of radix gentianae, 7-13 of radix isatidis, 3-7 of honeysuckle and 13-17 of vine of multiflower knotweed, wherein the solid psidium guajava raw material, radix gentianae, radix isatidis, honeysuckle and vine of multiflower knotweed are powder with grain size being 50-100 meshes. The feed additive has the following beneficial effects that the product belongs to the Chinese herbal medicine premix, is all natural and residue-free, promotes production and increases the capacity and the economic benefits; the product can improve the daily gain of poultry, reduce the feed conversion ratio, replace the antibiotic in the feed and play a role in preventing diseases; and the utilization ratios of the active ingredients of psidium guajava are increased from the original 30% to 80%.

The invention discloses a feed additive for improving the flavor of livestock meat and prolonging the shelf life of the livestock meat. The feed additive comprises the following main raw material components in part by weight: 1 to 5 parts of magnesium methionine, 4 to 8 parts of insect chitosan or / and selenoprotein, 1 to 5 parts of sodium glutamate, 1 to 5 parts of premix for use in livestock latter fattening period and 0.5 to 1 part of vitamin. The feed additive prepared by the invention can be added into livestock feed directly. When the livestock are fed by the feed containing the additive, the normal metabolic function of the digestive system, particularly the liver tissue, of the livestock can be maintained; the accumulation amount and position of the metabolic reactions of the fat, proteins, micro elements and the like can be regulated; and finally, the flavor of the livestock meat can be improved and the shelf life of the livestock meat can be prolonged. The raw materials of the invention are widely available and can be purchased in market easily; the preparation process is simple; and the feed additive is convenient to use and environmentally-friendly, and avoids any harmful residue.