1725 results about "Pig breeding" patented technology

The invention discloses a feed for pigs in different growth stages and a feeding method of the feed, which belong to the field of feeds. The feed with a new formula consists of sucking pig milk powder, a sucking pig feed, a piggy feed, a middle pig feed and an adult pig feed. Sucking pigs are fed with 4kg of sucking pig milk powder from the third day after the birthday to the age of 37-40 days of the sucking pigs; then the sucking pigs are fed with 20kg of sucking pig feed from the 37th-40th day after the birthday to the age of 59-65 days; the pigs can get out of a fence after being fed with a bag of piggy feed, two bags of middle pig feed and three bags of adult pig feed, the weight of each pig is more than 120kg when the pigs get out of the fence, and the specification of the piggy feed, the middle pig feed and the adult pig feed is 40kg / bag. The feed is designed and developed according to the growth characteristics of the pigs in different growth stages; the feeding method simplifies a complex pig culturing process through simple and effectively digitalization, so that the transition of different growth stages is stable and effective; therefore, the growth speed of the pigs is obviously improved, and the pig culturing benefit is effectively improved.

The present invention relates to a fermentation bed for pigsty, comprising a groove for storing bedding materials, wherein the bedding materials formed by fermenting organic materials are laid in the groove. Using the fermenting bed to raise pigs can digest and decompose excrement such as feces and urine quickly, such that no flushing and no smell for the pigsty are in result by proper management and maintenance. The influence to the environment and residents around farms are greatly eased and the economic benefit is raised obviously.

The invention discloses a process of preparing a pig manure bio-organic fertilizer by a microbial fermentation method. The process comprises the following step: by taking the pig manure as a raw material and supplementing straws, earthworm cast, seaweeds, and the like, performing a two-step fermentation process of a biological fermenting agent to prepare the pig manure bio-organic fertilizer. The process is high in resource utilization degree, easy for large-scale industrial production, beneficial to realizing resource utilization of live pig breeding wastes and capable of a pig breeding environmental pollution problem at present. The pig manure bio-organic fertilizer has the effects of the bio-organic fertilizer and the seaweed fertilizer, is rich in functional active ingredients of seaweeds and a large number of probiotics, capable of effectively regulating equilibrium of microorganisms in soil, decomposing organic or inorganic components such as organic substances and mineral substances in the soil, eliminating soil hardening, desertification, salinization and the like caused by abuse of a chemical fertilizer throughout the year, increasing the yield of crops, and has the special effects of improving the quality of the crops and improving the stress resistance of the crops. Besides, the pig manure bio-organic fertilizer is long in acting period, and is an ideal fertilizer for developing green ecological agriculture.

The invention discloses a black pig breeding method which comprises the following steps: (1) selecting a pig farm site; (2) sterilizing before breeding; (3) breeding piglets; (4) sexual maturity stage; (5) gestation period; (6) stages of labor; (7) suckling period; (8) transitional period; and (9) disease control. According to the mode, the black pig breeding method disclosed by the invention has the advantages of naturalness, no pollution, no hormone, growth rhythm accordance, whole-course good care, staging breeding and the like and has wide market prospects in popularization.

The invention discloses an intelligent system for healthy breeding of live pigs. The system comprises a live-pig precise liquid feeding subsystem, a disease early warning subsystem, an environmental monitoring and controlling subsystem, a remote monitoring subsystem, a live-pig breeding cloud big datum center and intelligent supporting subsystem, and a control system. The system disclosed by the invention uses a scientific live-pig breeding technology as a theoretical guide, and is combined with a high-integrated novel technology of sensor, internet and information processing technologies, sothat the system can sensitively detect health conditions of the live pigs, thereby realizing timely and controllable epidemic prevention, guiding farmers to perform healthy breeding of the live pigs,and greatly improving scale benefits of the farmers of the live pigs; the system realizes controllability of disease early warning and systematization of datum processing, and reduces the breeding risk of the farmers of the live pigs; and the system has high reliability and good real-time performance, replaces manual operation in a fully-automatic manner, greatly optimizes a structure of choosingand employing people in a pig farm, reduces pressure of choosing and employing the people in the pig farm, effectively saves manpower and material resources and reduces management costs.

Provided is an ecological cycle pig breeding method. The ecological cycle pig breeding method comprises the step of making wine and vinasse, the step of making vinasse feed, the step of breeding maggots through excrement, the step of carrying out ecological organic breeding, the step of using excrement to generate biogas, the step of utilizing excrement maggot breeding by-products, the step of producing organic feed and the like. According to the ecological cycle pig breeding method, the cost is reduced by 15% due to the vinasse feed, the cost is reduced by 15% due to feed with adult maggots, and the breeding cost is comprehensively reduced by more than 30%; protein feed is added; pig breeding cycle is short, and the slaughtering rate is high; health of live pigs is improved, and immunity is improved; the purposes of cycle breeding, cleaning production and zero emission are achieved, and environmental friendliness is achieved; products are various, original-ecology products such as the wine, the vinasse, organic live pigs, organic fly maggots, biogas and biogas slurry are obtained, the risk resistance capacity is high, and the ecological cycle pig breeding method is particularly applicable to ecological or organic live pig breeding of a single household, or large-scale and industrial live pig breeding. The ecological cycle pig breeding method is also applicable to ecological breeding of livestock and poultry such as cattle, horses, donkeys, deer, chickens, ducks and gooses. The ecological cycle pig breeding method is particularly applicable to ecological or organic live pig breeding of a single household or large-scale and industrial live pig breeding, and is convenient to demonstrate and popularize.

The invention relates to waste processing, in particular to a method and a device for purifying waste liquid from pig cultivation, which solves the problem that the waste liquid of pig cultivation pollutes the environment. After solid and liquid waste generated by pig cultivation is separated, absorption, filtration and automatic purification technology is used for enabling the separated waste liquid from pig cultivation to enter into a first absorption pool for first absorption and filtration, then filtrated liquid enters an automatic purification depositing pool for purification depositing processing and then a second absorption pool for second absorption and filtration processing, and lastly, the processed waste water reaches the standard and is discharged. The device for purifying waste liquid from pig cultivation comprises a first absorption and filtration pool, an automatic purification depositing pool and a second absorption and filtration pool which are sequentially communicated, wherein filtration material is arranged in the absorption and filtration pools, and the filtration material is only one or a plurality of layers of furnace slag, crop stems, zeolite and gravel. The invention has simple technology, low cost and easy application, and is suitable for the purification and the standard discharge of the waste liquid from family type pig farms or small pig farms.

The invention discloses an automatic monitoring system and an automatic monitoring method for live pig action, The system comprises a multi-modular information collecting module, a multi-modular information fusion module and an action recognizing module; the multi-modular information collecting module collects the video information of live pig breeding by a camera, collects the time sequence moving information of a single live pig by a sensor, and sends the collected multi-modular information to the multi-modular information fusion module; and the multi-modular information fusion module performs aligning and synchronizing on the video information and the time sequence moving information, obtains the multi-modular information of each live pig individual, then performs feature extracting and sends the multi-modular characteristics of each live pig individual to the action recognizing module which recognizes the dynamic or static action of each live pig individual. The technical scheme disclosed by the invention fully utilizes the intuition of the video technology in the macroscopic visual performance and the sensitivity of the sensor technology in the microscopic parameter acquiring aspect, thus realizing the precision and the automation on the live pig action monitoring.

The invention discloses a method for making a fermenting bed for ecological pig breeding by using composite strain culture, in particular relates to a method for making the fermenting bed by using a plurality of microorganisms. The invention comprises the steps of preparing the culture and making the fermenting bed. In the invention, the culture is mainly prepared by microzyme, lactobacillus, actinomycetes, photosynthetic bacterium and mycelial fungus according to proportion. The culture after being activated is stirred uniformly with organic padding pro rata, piled, fermented, prepared into the fermenting bed, and then can be used for breeding live pigs. The method solves the problems of long fermenting starting time of the organic padding, unstable microbial inoculum, strict requirements on the fermenting conditions and materials as well as short service life in the existing ecological pig breeding method. The method uses the composite strain culture to build ecological colony house; the fermenting starting time of the organic padding is short, which can be 1 to 2 days in summer and 3 to 5 days in winter; the strain activity is strong; the decomposing process can be finished in 1 to 3 days; the effect lasts for long; and the fermenting bed can be continuously used for 5 to 8 years. Moreover, the method is green and environmental friendly.

The invention relates to biologic pharmacy and a multi-functional ecological product. A live lactobacillus composite ecological microbial agent is prepared by fermenting and culturing probiotics taking live lactobacilli and microzymes as representatives by a fermentation tank, and the strains of other live probiotics are selected from one or more than one of nitrobacteria, sulphur bacteria, photosynthetic bacteria and bacilli. The invention has extensive application range in the pasturage breeding of poultry, such as pig breeding, chook breeding, cattle breeding, animal breeding and the like, the poultry breeding industry or aquiculture such as fish breeding and the like, and has a plurality of functions of enhancing the immunity after being eaten by animals, reducing the use of antibiotics, saving the use cost of medicines, obviously enhancing the reproduction rate, shortening the breeding period, obviously and effectively saving feedstuff and enhancing the income of an economic breeding farmer.

The invention discloses a weaned piglet nucleotide feed additive. The weaned piglet nucleotide feed additive comprises, by weight, 0.8 to 1.3 of adenosine monophosphate 5'-AMP, 0.3 to 0.8 of cytidine monophosphate 5'-CMP, 1.1 to 1.5 of guanosine monophosphate 5'-GMP and 0.7 to 1.4 of uridine monophosphate 5'UMP. The invention further discloses a preparation method and an application of the feed additive. According to the weaned piglet nucleotide feed additive, stress reaction of weaned piglets can be effectively relieved, the piglet grazing rate and the feed utilization efficiency are improved, the oxidation resistance and the immune function of weaned piglets are improved apparently, the organic resistance is enhanced, and accordingly, important significances are provided for modern scientific, intensive and large-scale pig production.

The invention discloses sow mating feed, and belongs to the technical field of pig raising feed. The sow mating feed is all-around in nutrition through scientific formulation, can meet needs of sows on various nutrients in a mating stage, promote metabolism, improve the immunity of a sow, reduce postpartum body weight loss of the lactating sow, promote rapid empathema of the sow to shorten the mating cycle, increase the number of piglets and the weight of a newborn piglet, increase the annual reproductive times and the reproductive performance of the sow; comparison tests show that the sow mating feed used in the mating period of the sow has a more significant effect than lactating sow feed, can improve the empathema rate, the litter size and the piglet birth weight of first-litter sows, can improve the empathema rate, the litter size and the piglet birth weight of multiparous sows and shorten the number of empathema days.

The invention discloses a pig breed selecting and feed selecting machine, comprising a frame body, a central controller and a feeding device, wherein the frame body comprises an electronic chassis andan artificial feeding box; a clapboard is arranged between the artificial feeding box and the electronic chassis; the central controller is arranged in the electronic chassis; the top part of the artificial feeding box is provided with a feeding pipeline which is communicated; and the feeding device is located below the artificial feeding box; and a feed intake channel which is for the feed intake of only one pig is arranged beside the feeding device. By adopting the structure, the pig breed selecting and feed selecting machine can screen out appropriate feed formulas and raw materials for the breed pig according to the growing conditions of pigs to improve the accuracy of measuring the ratio of feed to meat, can avoid feed waste, lower the pig breeding cost, improve the accuracy of breedreserving of the breeding pig and the feeding environment, improve the level of automation of the feeding experience for the feed products, and improve the large-scale pig-raising intelligent management level.

The invention provides a nursing pig concentrated feed and belongs to the field of animal feeds. According to the nursing pig concentrated feed, an antibiotic is replaced by an antibiotic-substituting compound consisting of antimicrobial peptides, plant essential oil and an acidifying agent. The feed is purely green, safe and harmless, the immunity of pigs cannot be destroyed, and difficult pig breeding and severe food safety crisis which are caused by the excessive addition of the antibiotic are avoided.

The invention discloses a technology for preparing fermentation bed padding by recycling livestock excrements and crop straws. The technology is high in recycling degree, can be used in a large scale easily, helps realize livestock breeding waste innocent treatment and fermentation bed padding recycling, and solves two existing difficulties of livestock breeding environment pollution and fermentation bed padding resource shortage. The technology is characterized in that livestock excrements serve as raw materials, assisted by straws, worm cast and alcohol active sludge, and the fermentation bed padding is prepared by aid of a two-step fermentation process of biological leavening agents. The prepared fermentation bed padding is rich in yeast, aspergillus niger, bacillus subtilis, bacillus megatherium, lactic acid bacteria and other probiotics whose content reaches as high in 2-5*108 cfu / g. After the prepared fermentation bed padding is applied to pig breeding, the morbidity of pigs is low, thereby being favorable for growth of the pigs.

The invention discloses feed for improving production performance of sows. The feed consists of the following components in parts by weight: 400-600 parts of corn flour, 80-150 parts of bran, 100-180 parts of expanded soybean meal, 30-50 parts of fish meal, 180-220 parts of soybean meal, 20-45 parts of soybean oil, 10-20 parts of calcium hydrogen phosphate, 10-20 parts of stone powder, 2-3 parts of lysine, 1-3 parts of methionine, 1-3 parts of threonine, 5-10 parts of compound trace elements, 1-2 parts of compound vitamin, 1-2 parts of oligopeptide, 0.5-1 part of flavone, 1-2 parts of plant extracts, 0.5-1 part of enzyme preparation, 1-2 parts of probiotics and 1-2 parts of feed antistaling agent. The feed provided by the invention can be used for adjusting the endocrine of sow bodies, promoting the development of corpus luteum, activating ovarian function, reducing the incidence of mastitis and endometritis, purifying the reproductive system, delaying the ageing of the reproductive system, improving the production performance of the sows, and increasing the economic benefit of pig raising.

The invention discloses a formula of a filler of a fermentation bed for raising pigs and a method for preparing a fermentation agent thereof. The formula comprises water, grass and wood chips, soil, Chinese medicinal herb, coarse salt and the fermentation agent; and the method for preparing the fermentation agent comprises the processes of natural fermentation, screening and cultivation, propagation and cryodrying. The preparation method is easy and has low cost; and the pigs raised in the fermentation bed using the formula have low disease incidence, and the fermentation bed has wide application range and also has promotion and application value in the south with high temperature and high humidity.

The invention discloses a bioorganic pesticide fertilizer and a production method thereof. The bioorganic pesticide fertilizer is a mixed product prepared from 70 to 80 percent of decomposed crop stalks or pig breeding fermentation bed padding, 5 to 10 percent of medical stone and 15 to 25 percent of inorganic compound fertilizer through effective microorganism fermentation; and the effective microorganism quantity after the fermentation is 2-3*10<8>. The production method comprises the following steps of: mixing the decomposed crop stalks or pig breeding fermentation bed padding and the medical stone; adding 5 to 10 percent of inorganic compound fertilizer first, and then adding effective microorganism bacteria for fermentation at normal temperature; and finally adding the rest 10 to 15 percent of inorganic compound fertilizer into the fermented material. The bioorganic pesticide fertilizer produced by the method can improve the yield of crops, has good effect of preventing and controlling crucifer diseases, and can reduce the nitrate content in brassicaceous vegetables and improve quality; in the production process, agricultural waste is further converted, so the environmental protection is facilitated; and the bioorganic pesticide fertilizer has wide application prospect in agriculture, livestock farming and environmental protection.

The invention relates to a pig breeding and breathing complex virus (PPRSV) and pig 2-type loop virus (PCV 2) series gene recombination adenovirus and vaccine in the field of high and new biotechnology. It uses PCR technology to clone the Cap protein gene into the plasmid carrier pShuttle-CMV-GP5 by open type reading rule and transforms tobacillus coli BJ5183strain with cage carrier pAdEasy-1 to capture the recombination plasmid; it uses recombination plasmid HEK293-A cell to capture recombination adenovirus and purifies it to express the recombination adenovirus rAd-Cap-GP5 of PRRSV GP5protein and PCV-2 Cap protein.

The invention relates to the formula of a special culture material capable of increasing the content of each amino acid in a grey mushroom fruiting body and a culture method. The formula provided by the invention is characterized in that the formula of the special culture material consists of the following raw materials in part by weight: 20 to 30 parts of straw, 20 to 30 parts of sawdust, 20 to 27 parts of cottonseed hull, 10 to 15 parts of bran, 0.3 to 0.5 part of monopotassium phosphate, 0.2 to 0.3 part of magnesium sulfate and 1.0 to 1.2 parts of calcium carbonate or calcium sulfate, wherein 10 to 30 kilos of pig excrement residues are added into 100 kilos of mixed culture material. According to the invention, the grey mushroom fruiting body has a round and attractive mushroom flower and greatly increases the content of each amino acid in the grey mushroom fruiting body, wherein the content of sulfur amino acid, branched chain amino acid, children amino acid, essential amino acid, flavor amino acid and sweet amino acid is greatly increased respectively. The grey mushroom fruiting body can increase the health-care medicinal function, increase the production additional value, reduce pollutants in the pig breeding industry and recycle the pig excrement residues.

The invention belongs to the technical field of computer applications, and particularly relates to a radio frequency identification devices (RFID) technology based meat food traceability system which is composed of an electronic ear tag, traceability bar codes, an RFID reader-writer and a background computer. The electronic ear tag comprises an RFID chip which is coded on a piglet body when each piglet is born; the traceability bar codes are pasted on small pieces divided by a pig carcass; information in the electronic ear tag and information in the traceability bar codes can be interconverted, the electronic ear tag and the traceability bar codes are scanned through an RFID reader-writer, relevant information can be looked up at any time, and the relevant information is imported to the background computer to perform data collection. According to the RFID technology based meat food traceability system, quality monitoring and quality traceability for the whole processes of a pig-breeding link, a slaughter processing link, a logistics link and a distribution and retail link are achieved.

The present invention relates to pig reproduction and respiratory syndrome virus recombined adenovirus and vaccine, and belongs to the field of biological high-tech. Through RT-PCR process to proliferate whole PRRSV GP5 sequence, cloning the gene sequence to the shuttle vector pShuttle-CMV of adenovirus carrier system, cotransforming colibacillus BJ5183 strain together with the skeleton vector of adenovirus carrier system to obtain recombinant plasmid, transfecting HEK293-A cell to obtain recombinant adenovirus and plaque purification, and RT-PCR and indirect immunofluorescence technique inspection, the recombinant adenovirus rAd-GP5 expressing PRRSV GP5 protein is constituted. The recombinant adenovirus can set ahead the expression of PRRSV GP5 protein and raise the expression amount to simulate the immune protecting reaction of body effectively.

The invention discloses a customer self-operation type pig breeding and sales system. The system comprises a client, a sales center platform, a breeding management platform, a breeding optimization device and a monitoring terminal; a customer logs in the system through the client and can realize piglet selection through the system, so that the customer can select one or more piglets for his or her own, breeds the piglets according to breeding programs formulated by the customer so as to complete self-management of pig breeding, and completes online payment, and therefore, convenience and quickness can be realized; the system can achieve full-process video monitoring and monitor the information of the growth environment of the piglets, the customer can remotely manage the entire growth process of pigs, and therefore, the safety of the meat of the pigs can be ensured; and specially-assigned people for managing the piglets exist in a farm, pollution-free and green breeding of the piglets can be realized, after breeding is completed, the pigs are sent to a modernized slaughterhouse for slaughtering the pigs, and pork can be rapidly transferred to the house of the customer, so that the fresh taste of the pork product can be ensured.

The invention relates to an original ecological pig farm and an original ecological pig breeding method. The interval between front and rear rows of piggeries of the pig farm is more than or equal to 15m; and the activity space of pigs is formed and shade trees are planted among the piggeries; each unit piggery has large ventilation and light-transmitting area; each piggery is provided with a heat-insulating sleeping area, a manure discharge area, a manure discharge hidden channel, an inner suction dirty gas pumping device, a bathing place for cooling the pigs in hot summer days, a manure collection and hazard-free treatment system and a rainwater drainage system; and the temperature of supplied drinking water in each piggery is no lower than 5 DEG C. Through the original ecological pig farm, the pigs can restore natural habits, naturally ingest food, freely bathe in the sunshine so as to reduce the stress and obviously enhance the disease resistance of the pigs; and the internal and external environments of the piggeries are clean, air is ventilated, smooth and odorless, and pathogenic microorganisms are a few, so that morbidity is reduced; and the problems of residual toxic and harmful substances in pork, and light color and poor taste of the pork can be solved, and the pork becomes more tender, fragrant, and flavorous.

The invention relates to application of a low-carbon saving type pig house, belonging to the field of application of a pig house. The pig house adopts a galvanized steel pipe greenhouse structure, and the roof of the pig house is covered with a plastic light transmission film and a sun-shading net material; a ventilation opening which can be opened and closed is arranged on each of a south wall body and a north wall body, a retractable ventilation skylight facing toward the south is arranged at the top of the pig house and is pulled and retracted through a longitudinal scroll at the top of the pig house; a fan is arranged on each of an east gable and a west gable of the pig house for supplementing ventilation; and a medium pressure atomization spraying system is arranged above a pigpen inthe pig house, a fermentation bed is arranged on the south side of the interior of the pigpen, fermentation bed padding is laid in a fermentation bed padding pit, an aeration fermentation system pipeline is buried at the bottom of the pit. The pig house adopts steel pipe materials and the structure which is helpful for convection and ventilation, and utilizes time-delay atomization spraying technology, fermentation bed pig raising technology and the aeration fermentation technology at the bottom of the fermentation bed, so that the pig house reduces construction cost and use cost, is energy-saving and environment-friendly, and reduces carbon emissions.

The invention relates to a breeding method for Laiwu pigs. The breeding method comprises the following steps of S1, pig farm site selection; S2, pig farm sterilization before breeding; S3, piglet breeding; S4, sexual maturity period; S5, pregnancy period; S6, labor period; S7, suckling period; S8, disease control. The breeding method has the beneficial effects that the breeding method for the Laiwu pigs is safe and reliable, a natural nuisanceless breeding method is adopted, and the production regularity of the Laiwu pigs is followed, so that the vitality is enhanced, the yield is increased, and a wide market prospect is obtained for popularizing a black pig breeding method.

The invention discloses a live pig cough identification method based on a convolutional neural network, and belongs to the field of voice signal processing. Respiratory diseases are one of the most common diseases affecting the pig breeding industry, which seriously restricts the development of the pig industry, cough is one of the obvious symptoms of respiratory diseases in live pigs, early warning of respiratory diseases can be achieved by monitoring and identifying the cough, thereby effectively reducing the spread of the diseases and the use of antibiotic drugs. For the problem that the identification precision is low in an existing live pig cough identification method, especially obvious for intensive large pig houses, the invention provides the method based on a convolutional neuralnetwork based on Ale*Net to recognize the cough, wherein a voice spectrum of voice signals serves as network input, the network can automatically extract the deep features of the voice spectrum, compared with a conventional voice recognition method, the method can effectively improve the cough recognition accuracy and overall recognition accuracy.

The invention discloses a monitoring system for pig rising, which consists of at least one raising monitoring station and a supervisory personal computer. The raising monitoring station consists of a weighing guardrail device, a weighing manger device, a feed proportioning device and an intelligent controller which is used for monitoring the weighing guardrail device, the weighing manger device and the feed proportioning device and the input / output interface of which is connected with an LCD touch screen, a signal conditioning device, which is used for conducting an amplification and an A / D conversion to at least two channels of load sensor signals, an RF transmitter for ID signals, which is used for identifying pigs and a drive circuit and used for controlling the feed electric motor arranged on the feed proportioning device. An RF ID card hung on the pig ear is additionally arranged to match with the RF transmitter for ID signals and the quantity of pigs needed to be monitored. The weighing guardrail device, the weighing manger device and the feed proportioning device all adopt simple and smart structures to coordinate with the computer control, thereby, the invention has simple structure, reliable performance, low manufacturing and using cost, small system error, high accuracy, low waste of feedstuff and high degree of automation; moreover, the invention can replace an imported product and satisfy the requirements for a modernized pig-raising production.

The invention relates to a pig-whole-genome low-density SNP chip. The chip is a DNA sequence which is shown in an SEQ ID NO.1-8846. The pig-whole-genome low-density SNP chip has the advantages that the pig-whole-genome low-density SNP chip is researched and analyzed from an existing 80 k chip, and under the situation that the selection accuracy is not remarkably lowered, unrelated SNP marks are creatively removed, and the number of the SNP marks is lowered to 8846. The pig-whole-genome low-density SNP chip has the innovative significance on pig breeding and selection, so that pig breeding is possibly popularized through the pig-whole-genome low-density SNP chip, and the Chinese pig breeding and selection progress can be greatly accelerated.

The invention relates to a feeding method in a growing stage and a fattening stage of a pig breeding process and belongs to the technical field of livestock breeding and a livestock fodder. In the pig breeding process, the fodder includes pig growing fodder and pig fattening fodder, the pig growing fodder and the pig fattening fodder are fed in a matching way in the growing stage and the fattening stage, and feeding is started from the growing stage and is finished at the fattening stage. The two mixed fodders are used in the growing stage and the fattening stage in different proportions, so that the nutrition value of the mixed product better accords with the production requirements in different stages for grown and fattened pigs, the grown and fattened pigs can be grown at higher growing speed, the utilization rate of the fodder is higher, discharging of nutrition which is not digested and absorbed is few, and the pork is higher in quality. Meanwhile, the invention provides stage proportion, and the feeding method is more convenient, scientific and efficient.