156 results about "Pig farming" patented technology

The invention discloses a real-time cost management and control method and system for a pig raising enterprise. The method comprises the following steps: collecting structured data of a whole breeding period of boars, piglets and pork pigs in real time; based on the structured data, real-time cost indexes of the boars, the piglets and the pork pigs are calculated through a preset algorithm; comparing the real-time cost index with a theoretical standard value based on experimental field data; comparing the real-time cost index with a future cost threshold predicted by machine learning; when the real-time cost index exceeds the theoretical standard value or the future cost threshold value, it is judged that the cost is abnormal; and executing a corresponding exception adjustment operation according to the type of the exception cost. According to the invention, the technical problems of fragmentization of data acquisition, lagging of cost accounting, insufficient anomaly detection precision and low manual response efficiency in the prior art are solved.

The invention provides an intelligent live pig health assessment method and system based on multi-modal behavior perception, and relates to the technical field of live pig breeding, and the method comprises the steps: obtaining a basic data set; performing multi-modal behavior feature fusion processing according to the basic data set, and extracting joint behavior features; performing graph structure construction according to the joint behavior characteristics to obtain a directed weighted group behavior graph; performing group behavior dynamic evolution according to the directed weighted group behavior graph to generate dynamic embedding representation; performing group health reasoning according to the dynamic embedding representation to output a reasoning result, wherein the reasoning result comprises an individual health risk probability and a group propagation influence factor; and performing group health decision according to the reasoning result, and generating a joint evaluation result. According to the method, the accuracy and operability of health assessment of live pig groups are improved through space-time collaborative fusion of depth video and audio data, graph topology construction constrained by a breeding functional area, dynamic gating evolution of contact exposure double-path propagation and a decision mapping mechanism driven by virtual blocking.

The utility model relates to the technical field of sewage treatment, in particular to a multi-stage ecological pig raising wastewater treatment system, which comprises an anaerobic baffled reactor, an anaerobic baffled reactor, an anaerobic baffled reactor and an anaerobic baffled reactor, a plurality of partition walls are arranged in the anaerobic baffled reaction tank and are divided into a plurality of independent anaerobic baffled reaction chambers, water passing pipes are arranged at the upper parts of the partition walls, and sewage sequentially flows among the anaerobic baffled reaction chambers through the water passing pipes; mud guide inclined walls are arranged on two sides of the bottom of the anaerobic baffling reaction tank; a settling mud inclined wall is arranged below the water outlet of the anaerobic baffling reaction tank; the multi-stage reverse-flow anaerobic biological filtration unit is communicated with the anaerobic baffling reaction tank; comprising a plurality of filter chambers filled with filler, and the filter chambers are sequentially communicated through water passing holes which are formed in a high-low staggered manner; the aerobic ecological purification system comprises a middle water tank, and part of effluent of the middle water tank flows back to the anaerobic baffled reactor and the microalgae purification tank. The device is friendly to ecological environment, low in energy consumption, small in dosage, low in operation cost and simple and convenient to operate.

The invention belongs to the technical field of feed additives, and particularly relates to slow-release fat powder for pigs and a preparation method of the slow-release fat powder. The slow-release fat powder for pigs comprises an intragastric adhesion-slow release layer, a small intestine forepart bile acid response controlled release layer and a small intestine posterior microbe response controlled release layer. The prepared slow-release fat powder for the pigs is good in stability, accurate release of different nutritional ingredients in different parts of gastrointestinal tracts of the pigs can be achieved, and powerful support is provided for sustainable development of the pig raising industry.

The invention provides a sow delivery behavior intelligent monitoring method based on an improved YOLOv8 model, and the method comprises the steps: obtaining a sow delivery behavior data set, carrying out the preprocessing, and dividing a training set and a test set; the method comprises the following steps: selecting a YOLOv8 model as a basic model and performing improvement, respectively adding DLKA modules in front of three detection heads of a Head part in the YOLOv8 model, introducing adaptive Threshold Focus Loss as classification loss, and constructing a sow delivery behavior monitoring model; training the improved model by using the training set; testing and evaluating the trained model by using the test set; according to the invention, the precision of sow delivery behavior monitoring can be effectively improved; according to the invention, the posture change of the sow during delivery can be accurately captured, the birth condition of piglets can be accurately identified and recorded, the pig industry is effectively promoted to proceed towards the intelligentization and refinement direction, and powerful support is provided for the high-quality development of animal husbandry in China.

The invention provides a pig growth state evaluation method based on deep learning and visual large model SegmentAnything, and relates to the technical field of deep learning and the field of current hot visual large models. According to the method, NMS in YOLOv5 is replaced by soft-NMS aiming at the condition that pigs are frequently adhered and shielded. The improved YOLOv5 and ByteTrack are combined to track a pig, and then pig tracking information is innovatively taken as a prompt, and a large visual model SegmentAnything is utilized to obtain a frame-by-frame ID-by-ID mask of the pig. Thirdly, the pig masks are input into a pig growth health assessment model, binary mask feature extraction is carried out, after extracted features pass through a deep regression prediction network, a pig growth state classification result is obtained after equalization operation, and therefore whether pigs grow healthily or not is judged. According to the method, the requirement for equipment is low, a conventional color camera is adopted, the requirement for computing power is low, the equipment price is low, and the decision making scientificity and the breeding efficiency of the pig industry can be well improved on the premise that the cost is low.

The invention provides an ecological pig raising system based on intelligent monitoring and precise feeding, and belongs to the technical field of intelligent monitoring and precise feeding. According to the scheme, multiple types of sensors are deployed in a breeding environment, environment parameters are continuously collected, the collected environment parameters are preprocessed and preliminarily analyzed, and the environment parameters are analyzed to be detected; the processed environment parameters are sent to the central processing unit through the network transmission device, the central processing unit analyzes and evaluates the health state of the pigs, an individualized feeding plan is made according to the health state of the pigs, the behaviors of the pigs are monitored in real time, and abnormal conditions are responded. The problems that the quality of the breeding environment cannot be comprehensively known, and the safety and stability of data transmission cannot be guaranteed are solved.

The invention discloses a porcine rotavirus VP7 protein conservative dominant B cell antigen epitope peptide or a combination thereof or a nucleic acid molecule and application thereof, and further discloses a porcine rotavirus VP7 protein multi-epitope fusion protein and a preparation method and application thereof. The multi-epitope fusion protein disclosed by the invention not only can induce high-level specific antibody response and cellular immune response aiming at the VP7 protein and effectively inhibit porcine rotavirus infection, but also has relatively high safety and stability. Compared with the traditional fusion protein, the multi-epitope fusion protein disclosed by the invention has remarkable advantages in the aspects of production cost, immune efficacy and the like, and a feasible porcine rotavirus prevention and control scheme is provided for the pig industry.

The invention discloses application of PF-543 in preparation of a product for preventing and / or treating African swine fever. According to the application disclosed by the invention, the fact that the PF-543 has a remarkable effect of resisting the African swine fever virus is determined for the first time, the safety is good, the maximum non-toxic dosage is 40 mu M, the proliferation of the African swine fever virus is effectively inhibited, the invasion and early replication of the African swine fever are inhibited, a new technical choice is provided for preventing and treating the African swine fever, and the healthy development of a live pig breeding industry is favorably guaranteed.

The invention relates to the field of pig breeding and image processing, in particular to an intelligent recognition method and system for abnormal excrement of a pig house and ground cleanliness. Manual patrol is replaced by constructing an end-to-end automatic monitoring system; meanwhile, the problem that the precision of precise classification detection of the ground surface pollution degree in a complex environment is poor at present is solved, the pollution condition of the pigsty is monitored in real time, the existing cleaning problem can be found in time, and the disease risk of pigs is reduced.

The invention belongs to the technical field of intelligent breeding and robots, and particularly relates to a pig house robot health monitoring and early warning system for a pig raising platform. The system aims to solve the problem of early warning lag caused by discontinuity of existing monitoring data. The system comprises a static sentinel node subsystem which is used for continuously collecting data at high frequency, generating an abnormal score and sending a triage request; the mobile diagnosis and service unit subsystem is used for performing autonomous diagnosis after receiving the request, acquiring individual accurate data and generating a report; and the central control and prediction subsystem is used for fusing data, constructing a space-time atlas model, predicting epidemic disease transmission and generating prospective early warning. By means of the system, 7 * 24-hour uninterrupted monitoring of swinery is achieved, data faults are solved, common screening-fine diagnosis cooperation is formed, a space-time diagram neural network is used for providing prospective early warning, and an epidemic disease prevention and control gateway is remarkably advanced.

The invention discloses a sow delivery prediction method based on cloud-side cooperation, and belongs to the technical field of intelligent breeding of live pigs. The cloud edge collaboration method mainly comprises a data acquisition device, namely an obstetric table, an edge end and a cloud end. And the data acquisition device acquires and transmits a video stream through a visual sensor at the inclined upper part. The edge end detects the posture of the sow through a lightweight target detection algorithm, calculates the activity amount and standing posture proportion, detects a key frame and transmits the key frame to the cloud end. And the cloud end receives the video stream key frame to perform arching behavior analysis and duration statistics, and the statistical result is transmitted back to the edge end. And the edge end analyzes the obtained sow activity amount, standing posture proportion and arching duration through a dynamic linear model to predict the sow delivery time. According to the invention, practical deployment of the intelligent algorithm on the welfare obstetric table can be realized, and the method has a wide application prospect in the technical field of livestock breeding intelligentization.

The utility model discloses pig wet feed processing equipment. The pig wet feed processing equipment comprises a crusher, a plurality of bins, a batching scale, a mixer, a cooking pot and a feeding pot, the crusher is communicated with the stock bin through a pipeline, the stock bin is connected with the batching scale through a pipeline, the batching scale is communicated with the mixer, the mixer is communicated with the cooking pot through a pipeline, and the cooking pot is communicated with the feeding pot through a pipeline; the cooking pot comprises a pot body, a heater is arranged on the inner wall of the pot body, a steam inlet and a steam outlet are formed outside the heater, a stirring motor, a pressure release valve and a feed port are arranged at the top of the pot body, an output shaft of the stirring motor is in transmission connection with a stirring rod, and the feed port is communicated with the mixing machine; a discharge hole is formed in the bottom of the tank body and is communicated with the feeding tank. According to the utility model, the traditional pig raising wet feed scheme can be simulated, meanwhile, the aspects of automation, safety and the like are considered in the process engineering, and the process skips the granulating process of the pig feed, so that the feeding cost of farmers is reduced while the pig raising effect is considered.

The utility model relates to an adjustable guardrail for pig breeding, and belongs to the technical field of pig breeding. The device mainly comprises stand columns, connecting blocks, supporting cross beams, handrails, plug pins and screws. The stand columns, the supporting cross beams and the handrails are assembled to form the protective fences, after the body of a live pig is enlarged, a feeder can detach the protective fences and additionally install the protective fences in the transverse direction and the longitudinal direction, the effect of widening the range of the pig house is achieved, meanwhile, a layer of protective fences can be additionally installed on the protective fences on the lower layer through cooperation of the screws and the nuts, and the purpose of height adjustment is achieved. And the use effect of the protective fence is improved.

This utility model relates to the technical field of heating equipment for livestock farming, and discloses an infrared radiation plate for pig nursery pigs, including a shell and a first heating element. The first heating element is located inside the shell and is attached to the inner front wall of the shell. Compared with heating tubes, the first heating element provided by this utility model can provide a uniform heating effect for the infrared emitting plate, and the radiant heating area is large. Therefore, it is not necessary to use multiple heating tubes to heat the living environment of the nursery pigs, which can avoid the problem of increased pig farming costs due to increased purchase costs of heating plates. Moreover, the infrared emitting plate provided by this utility model has a simple structure, and users can directly plug it in after delivery, eliminating complicated installation procedures. In the humid and regularly disinfected environment of the pig farm, the service life of the infrared emitting plate is longer than that of heating tubes, which can greatly reduce the equipment investment of pig farming enterprises.

The utility model discloses a diarrhea microorganism prevention blanking and feeding device for pig raising, which relates to the technical field of feeding devices and comprises a feeding device main body, a cover plate is detachably mounted at the top of the feeding device main body, and a first blanking pipe is connected to one side of the top of the cover plate in a penetrating manner. According to the anti-diarrhea microorganism discharging and feeding device for pig raising, the output end of the arranged stirring motor drives the stirring rod to stir and mix anti-diarrhea microorganisms and feed, the feeding device body stirs and mixes the feed and then conducts discharging, discharging after external mixing is not needed, the workload is reduced, using by workers is convenient, and the working efficiency is improved. A feeding trough is formed between the feeding basin and the protruding block, then the feeding area of the feeding basin is divided through a partition plate on the supporting base, each pig is fed in the partition space of the partition plate, the partition plate can block the sight of the pigs in the feeding process, the pigs do not interfere with one another in the feeding process, the food grabbing probability is reduced, and waste caused by food grabbing is reduced; the feeding cost is saved and the feeding benefit is improved.

The utility model discloses a pig breeding weighing device, which comprises a supporting seat, a weighing plate is arranged in the middle of the top surface of the supporting seat, protective fences are arranged on the top surface of the supporting seat and positioned on two sides of the weighing plate, and a transverse plate is arranged in the middle of the top surface of each protective fence. According to the device, the double-shaft motor is turned on, the double-shaft motor drives the screw rod to rotate, and then the movable block on the screw rod is limited through the limiting rod and the connecting block, so that the movable block can move on the screw rod, and the movable block drives the connecting block to move while moving; the connecting block moves and drives the baffle on the surface of one side of the fixing block to move at the same time, the position distance between the two baffles can be adjusted, the space size of the device can be adjusted, and therefore small live pigs can be limited, the live pigs are prevented from moving disorderly during weighing, and the weighing accuracy of the live pigs can be improved.

The utility model relates to the technical field of pig breeding, and discloses a batching device for pig breeding, the top of a batching box is transversely provided with two chutes, the top of the batching box is fixedly connected with a mounting rack, the bottom of a hopper is fixedly communicated with a discharge port, four corners of the bottom of the hopper are fixedly connected with supporting legs, and the mounting rack is provided with a stirring mechanism. The stirring mechanism not only can drive multiple groups of rotating stirring rods to stir feed in the batching box, but also can play a role in assisting in turning the internal feed through relative and opposite movement of two groups of baffles, and can greatly improve the stirring effect of the feed by being matched with the multiple groups of stirring rods, so that the feed is mixed more uniformly; and the dredging rod can stir the feed in the discharging port after rotating, the two sets of guide rods can drive the feed in the hopper to turn over in the repeated moving process, discharging of the feed in the discharging port is facilitated, and the problems that the discharging port is blocked and the like are solved.

The utility model relates to the technical field of live pig breeding, in particular to a special automatic heat preservation batch feeder for live pig breeding, which comprises a bottom plate, a fixed box fixedly connected to the top of the bottom plate, a pressure sensor fixedly connected in the fixed box, a rectangular plate fixedly connected to the top of the pressure sensor, and a supporting plate fixedly connected to the top of the rectangular plate. The surface of the supporting plate is fixedly connected with a feeding cylinder and a control plate, the bottom of the feeding cylinder is fixedly connected with a discharging pipe, and the discharging pipe communicates with the feeding cylinder; a pressure sensor can be used for weighing, when feed is added to a proper weight, an electric valve is closed under the control action of a control panel, the feed can be accurately added, meanwhile, the temperature in a feeding cylinder is monitored through a temperature sensor, and when the temperature is low, an electric heating plate works to heat the feed, so that the feed can be accurately added. And meanwhile, the stirring rod rotates under the power action of the driving motor, so that the heating comprehensiveness of the feed can be improved, and the feeding device is more practical in use.

The utility model discloses a feed trough for raising pigs, and relates to the technical field of feed troughs. Comprising a breeding feeding mechanism, the breeding feeding mechanism comprises a feed mixing box, the bottom of the feed mixing box is fixedly connected with a feeding assembly, the two sides of the top of the feed mixing box are each rotationally provided with a cover plate, and the feed mixing box is internally provided with a feed mixing assembly; a discharging through plate is fixedly connected to the interior of the feed mixing box, the discharging through plate is located below the feed mixing assembly, and a discharging control assembly is installed in the feed mixing box; breeding feed can be mixed, the feed can be evenly mixed, the follow-up feeding effect of the feed is improved, the using effect of the device is improved, meanwhile, the feed can be conveniently discharged and fed, the evenly-mixed feed can be conveniently guided to the feed trough in the corresponding position, the convenience of feeding multiple pigs at the same time is improved, and the feeding efficiency is improved. The practicability of the device is improved.

The present invention discloses a feces collection device for pig breeding, which includes a fermentation tank. A feeding port is fixedly connected to the top of the fermentation tank. An outlet cover is threadedly connected to one side of the fermentation tank. Support rods are fixedly connected to the bottom of the fermentation tank. A motor is fixedly connected to the bottom of the fermentation tank. A rotating rod is fixedly connected to the top of the motor. A bottom plate is fixedly connected to the bottom of the support rod. A cleaning and mixing mechanism is arranged inside the fermentation tank, and it relates to the technical field of the breeding industry. Through the threaded connection between the outer wall of the threaded block and the inner wall of the mixing rod, the threaded block rotates and slides inside the inner wall of the mixing rod. At the same time, the small magnet A with half of the volume inside the threaded block magnetically attracts the small magnet B inside the slider, so as to drive the slider to rotate and slide out synchronously on the outer wall of the mixing rod, and slide-scratch the surface of the mixing rod, improving the cleaning effect of the residue of the fermented substances adhered to the surface of the mixing rod during long-term stirring, and further improving the scraping and cleaning effect of the residue strongly adhered to the outer wall of the mixing rod due to stirring.

The utility model relates to the technical field of air monitoring devices and discloses an air monitoring device for healthy breeding of live pigs, which comprises a sliding rail and a sliding block slidably connected with the bottom of the sliding rail, a gas sensor is fixedly mounted at the bottom of the sliding block, and one end of the sliding rail is fixedly connected with a mounting block. A sliding cavity is formed in the top of the mounting block, a wedge-shaped block is slidably connected into the sliding cavity, the top of the wedge-shaped block extends out of the mounting block, the bottom of the wedge-shaped block is fixedly connected with a first spring, and the lower end of the first spring is fixedly connected with the bottom of the inner wall of the sliding cavity; according to the air monitoring device for healthy breeding of the live pigs, when a worker assembles the sliding rails, a mounting block at one end of one sliding rail is inserted into a mounting groove in one end of the other sliding rail, and a wedge-shaped block on the mounting block is clamped with a through groove in the mounting groove, so that the two sliding rails can be assembled, and the stability is higher after the sliding rails are assembled; and the sliding rail can be assembled more conveniently.

This utility model discloses a drinking water device for pig farming, relating to the field of pig farming technology. Specifically, it is a drinking water device for pig farming, including a drinker with a water storage device installed on the outside. The drinker has a first slot inside, and a drinker frame is installed in the first slot. A second slot is opened through the outer frame of the drinker, and a displacement device that can move up and down according to the water volume is installed at the bottom of the second slot. A spring plate assembly can drive a switch trigger assembly to move up and down according to the water volume. When moving, it can trigger a motor switch to start or stop the motor from injecting water. This allows water to be automatically injected when the pigs' drinking water is insufficient and automatically shut off when the water volume is sufficient, eliminating the need for manual water injection. The medication is placed in the storage tank of the injection device. While water is being injected, the injection device rotates, allowing for intermittent injection of medication without accumulation, which helps the medication dissolve.

This invention relates to a pre-treatment device and method for pig feed, belonging to the technical field of pig farming equipment. It includes a mixing device, a drive motor mounted at the bottom of the mixing device's outer shell, a mixing shaft at the output end of the drive motor, a discharge port on one side of the bottom of the mixing device's outer shell, a liquid inlet pipe fitted onto the surface of the mixing device's outer shell, a servo reduction motor mounted on one side of the top of the mixing device's outer shell, a gear mounted at the output end of the servo reduction motor, and a toothed ring fitted onto the outer surface of the mixing shaft; a stirring rod assembly is mounted on the surface of the mixing device. This invention integrates a stirring rod assembly, a surrounding liquid inlet pipe, a spiral deep kneading plate, a bottom baffle with micropores, and wall scraping strips into a pre-treatment device for pig feed, achieving zoned mixing, precise liquid inlet control, deep kneading and blending, and simultaneous wall scraping to prevent clogging, solving the problems of uneven mixing, clumping, and wall adhesion in traditional methods, and improving pre-treatment efficiency and quality.

The invention provides an application of metabolites in sow vaginal secretion in early pregnancy diagnosis, and finds that three metabolic molecules can be used as markers for the early pregnancy diagnosis of sows for the first time on the basis of non-targeted metabonomics and machine learning conjoint analysis. According to the present invention, the metabolic markers are respectively INDOLEPROPIONIC ACID (indolepropionic acid), cis-Amonitate (cis-Amonitate) and 4-p-Coumaroylquinic acid (4-p-coumaroylquinic acid), the ROC curve AUC values of the metabolic markers are respectively 0.88, 0.92 and 0.77, and the metabolic markers have excellent diagnosis performance during the combination diagnosis. The pregnancy diagnosis is carried out by adopting the vaginal secretions of the sows 18 days after hybridization, the effective pregnancy diagnosis time is advanced by 5-8 days on the basis of a wave diagnosis method, and the method has important significance for reducing cost and increasing ultrasonic efficiency in live pig feeding.

The utility model relates to the technical field of breeding lighting, in particular to a pig breeding lighting lamp with self-adaptive brightness adjustment, which comprises a mounting seat, a mounting shell is slidably connected to the center of the bottom surface of the mounting seat through an arranged connecting column, a group of adjusting holes are formed in the connecting column, and an inserting rod is fixedly welded to the center of the top surface of the mounting shell. A mounting plate is mounted on the bottom face of the mounting shell, a plurality of LED lamp beads are mounted on the bottom face of the mounting plate, a PCB main board is mounted on the top face of the mounting plate, a light-transmitting lampshade is mounted on the bottom face of the mounting shell, a light sensor is mounted on the outer side of the lampshade, and an electrified insect-avoiding net cover is clamped to the bottom face of the mounting shell and the outer side of the lampshade. According to the live pig breeding illuminating lamp capable of adaptively adjusting the brightness, the brightness of the LED lamp beads can be adaptively adjusted through the light sensor and the PCB mainboard, the distance between the lamp and the ground can be adjusted through the connecting column, the adjusting hole, the inserting column and the positioning block, and meanwhile mosquitoes attracted by lamplight can be effectively killed through the electrified insect-avoiding net cover.

The present invention relates to the field of bioengineering technology, and more particularly to a Lactobacillus delbrueckii strain and its use. The present invention isolates a strain of Lactobacillus delbrueckii, Mafic1501, from pig feces and deposits it with a biological deposit number of CGMCC No. 26198. The Lactobacillus delbrueckii strain Mafic1501 provided by the present invention can effectively improve the intestinal health and growth performance of pigs, particularly low-birth-weight pigs. It can effectively improve the growth performance of low-birth-weight pigs, improve their physiological health, and enhance pig production efficiency, which is of great significance in the pig farming industry.

The invention discloses application of difluoromethyl ornithine in preparation of a medicine for preventing and / or treating diseases caused by porcine circovirus type 2 infection, and belongs to the technical field of biology. It is found that difluoromethyl ornithine can efficiently inhibit infection of the porcine circovirus type 2 to host cells and mice, reduce the virus titer of the porcine circovirus type 2, inhibit expression of Cap protein of the porcine circovirus type 2, significantly reduce the virus load in mice and relieve infection symptoms. And the difluoromethyl ornithine is relatively low in cytotoxicity and has no obvious toxic and side effects on mice. The difluoromethyl ornithine can be used for preparing the medicine for resisting the porcine circovirus type 2, and a new treatment choice is provided for preventing and treating porcine circovirus type 2 infection and porcine circovirus related diseases in actual pig raising production.

A bagged feed supporting frame for pig breeding comprises a bottom ring, an outward-extending base is welded to the bottom ring, universal wheels are arranged on the outward-extending base, at least two vertical plates are welded to the bottom ring, inner plates are welded to the inner walls of the vertical plates, the inner plates are sleeved with lifting sleeves, a pair of outward-extending arms are welded to the lifting sleeves, transverse holes are formed in the outward-extending arms, and clamping rods are movably arranged in the transverse holes. The upper end of the lifting sleeve is provided with an upper ring through a screw, the upper ring is provided with a capped pin, the capped pin is sleeved with an upper sleeve plate, the inner side end of the upper sleeve plate is provided with an inserting rod, and the lower end of the inserting rod is a sharp end. By means of the lifting sleeve moving upwards, when the open end of the bagged feed is fixed to the upper ring, the bagged feed can be moved upwards, so that the lower end of the bagged feed is separated from the ground, and the bagged feed can be transferred conveniently; due to the feed in the bagged feed, the packaging bag is tightened, so that the feed is convenient to dig and take.

A fence for pig breeding is installed between two adjacent base columns and comprises a pair of parallel transverse pipes located between the two base columns, and a plurality of vertical pipes are arranged on the transverse pipes in a penetrating mode. A vertical rod is arranged in the vertical pipe in a penetrating mode, threads are arranged at the two ends of the vertical rod respectively, concave pieces are arranged at the upper end and the lower end of the vertical rod respectively in a sleeved mode, the two ends of each concave piece are arranged on the circumferential side of the vertical pipe in a penetrating mode, the two ends of the vertical rod are connected with abutting nuts through the threads respectively, and the inner side ends of the abutting nuts abut against the outer side ends of the concave pieces. The blocking pipe is continuously arranged on the transverse pipe, an upper plate is welded to the upper end of the blocking pipe, and the lower wall of the upper plate is tightly attached to the transverse pipe. According to the utility model, the installation operation is convenient, the density of the vertical pipe can be conveniently adjusted as required during installation, and the firmness of the whole structure is improved.