90 results about "Breeding pig" patented technology

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker positioned on a No.15 chromosome of a sow and related to the lactation ability of the sow. The SNP site of the SNP molecular marker corresponds to the Agt at the 31884611bp position on the No.15 chromosome of an international pig reference genome version 11.1; g mutation; the genotype of the gene is AA, AG or GG. The SNP molecular marker provided by the invention is remarkably related to the sow lactation ability character, the identification of the sow lactation ability character can be realized by identifying the single nucleotide polymorphism of the SNP molecular marker and / or the genotype of the SNP molecular marker, and the dominant allele frequency can be increased generation by generation and the sow lactation ability can be improved by preferably selecting the dominant allele G of the SNP provided by the invention. The pig genetic improvement progress is accelerated, so that the economic benefit of breeding pig breeding is effectively improved.

The invention discloses a CHRM3 gene InDel molecular marker associated with growth and reproduction traits of a large white pig and application of the CHRM3 gene InDel molecular marker, a 62bp deletion variation is identified in a second intron of the CHRM3 gene, and a breakpoint is positioned in a second intron 521426525142713bp (a pig chromosome 14 reference sequence NC010456.5) of ENSSSCT00000082112.1. The application for detecting / identifying the growth and reproduction traits of the large white pigs is developed on the basis of the molecular marker, and the detection method is simple, rapid and low in cost and can be used for accurately screening individuals with better traits such as backfat thickness, primary birth litter weight, total multiparous litter size and gestation period of multiparous sows in the early stage, so that genetic improvement is carried out on the growth and reproduction traits of the pigs, and the economic benefit is increased. Multiple characters such as growth and reproduction can be selected at the same time, the breeding period of excellent boars can be shortened, and the breeding efficiency and progress are accelerated.

The invention relates to the technical field of molecular markers, in particular to an SNP (Single Nucleotide Polymorphism) molecular marker for predicting the daily age character of a pig for correcting 100 kg weight and application of the SNP molecular marker. The molecular marker is Ggt at the 53th site, the 157th site and the 723th site of the 12th chromosome of the Sscrofa11.1 version of a pig genome; according to the present invention, the CHD3 gene has the A single nucleotide polymorphism (SNP), and the site is located in the CHD3 gene exon region and belongs to the nonsynymous SNV; whole genome association analysis (GWAS) is carried out on a group containing 428 pigs, it is found that the site is extremely remarkably related to the growth speed required for correcting the day age of 100 kg of the weight of an individual (P = 1.27 * 10 <-10 >), and the individual carrying G allele shows higher breeding value, can serve as an important marker for molecular assisted breeding, is not limited by factors such as age and sex, and can be used as a marker for molecular assisted breeding. The method is suitable for breeding excellent boars, and can accelerate the formation of populations with excellent growth performance and improve the breeding efficiency of improved breeds.

The utility model discloses an automatic feeding device for boar breeding, which comprises a feeding box, a feeding trough and an induction table, a partition plate is arranged in the feeding box, a food stirring bin is arranged above the partition plate, a stirring mechanism is arranged in the food stirring bin, a feeding pipe, a water guide pipe and a motor are arranged on the feeding box, the water guide pipe is connected with a water storage tank, and the motor is connected with the water storage tank. A spring is arranged at the bottom in the feeding box and provided with an induction groove, the induction groove is slidably connected with the inner wall of the feeding box, a trigger switch is arranged below the partition plate, the groove wall of the induction groove is used in cooperation with the trigger switch, a control box and an alarm are arranged on the side wall of the feeding box, the trigger switch is electrically connected with the control box, and the control box is electrically connected with the alarm. By arranging the induction table, the induction groove, the trigger switch, the alarm, the first electromagnetic valve, the discharging pipe, the second electromagnetic valve and the like, automatic feeding of boars is achieved, it is guaranteed that foodstuff is sufficient and supplied in time in the feeding process, breeding development of the boars is promoted, and growth is facilitated.

The application provides a pig breeding and production integrated house group transfer planning and scheduling method and device, and relates to the technical field of intelligent breeding management. Through the fusion of health monitoring and reproductive performance double-dimensional data, the pigs are comprehensively rated and prioritized, so that the group transfer decision is no longer dependent on a single index or artificial experience, and high-value breeding pigs and pigs that need to be isolated can be accurately identified. In the process of combining pigs, the pig pathogen carrying state or health risk level is combined, and the same state priority merging principle is followed, so that the flow of different health state pigs is blocked, and biological safety control is strengthened. According to the loading scheme and the layout of the field, the target field is dynamically allocated and the transfer path is generated, the efficiency of the field is improved, and the stress of the pigs and the lag of the environmental control caused by the transfer confusion are reduced. Through scientific planning of the transfer process, the risk of disease outbreak and treatment cost are reduced, the smooth connection of each breeding link is ensured, and the survival rate of the pig group and the comprehensive breeding benefit are improved.

The utility model relates to the technical field of boar testing, in particular to a boar performance testing device which comprises a bottom plate, a groove is formed in the bottom plate, a weighing device is fixedly connected in the groove, a steel plate is fixedly connected to the top of the weighing device, a feed box is fixedly connected to the surface of the bottom plate, and the feed box is arranged on the side face of the steel plate. A fixed plate is fixedly connected to the top of the bottom plate, a crushing box is fixedly connected to the top of the fixed plate, an inclined plate is fixedly connected to the bottom of the crushing box, a driving motor is installed outside the crushing box, and a rotating rod is fixedly connected to the output end of the driving motor; when a boar is fed, the boar can be weighed through the weighing device, then the weighing numerical value is displayed through the display screen, then the weighing numerical value of each time is recorded through the recorder, the weight is displayed more visually, then the performance of the boar can be measured more accurately, meanwhile, the space between the bottom plate and the fixing plate is limited, and therefore the performance of the boar can be measured more accurately. And the activity range of the boars can be reduced, so that the boars can be conveniently weighed.

The present application relates to the field of molecular markers and animal genetic breeding technology, and particularly relates to a SNP marker affecting pig purine base content and application thereof. Based on three test pig populations of American purebred Landrace, American purebred Large White and American purebred Duroc, the present application uses pig whole genome resequencing and GWAS analysis to research and determine 15 SNP markers significantly affecting pig purine base content. By selecting the advantageous alleles of the above SNP markers, the frequency of the advantageous alleles can be increased generation by generation, the corresponding purine content can be reduced or increased, the progress of pig genetic improvement can be accelerated, and the economic benefits of pig breeding can be effectively improved.

This invention relates to the fields of molecular markers and animal genetic breeding technology, specifically to a molecular marker located on chromosome 4 of pigs that is associated with body size and carcass traits, and its application. Using the F7 generation of a chimeric family as the research object, this invention employs whole-genome resequencing and GWAS analysis to study and identify the molecular markers located on chromosome 4 of pigs associated with body size and carcass traits. By optimizing the dominant alleles of these molecular markers, the frequency of dominant alleles can be increased generation by generation, enabling rapid and accurate selection of body size and / or carcass traits, accelerating the progress of pig genetic improvement, and thus effectively improving the economic benefits of pig breeding.

The invention discloses an application of an SNP (Single Nucleotide Polymorphism) molecular marker related to porcine scrotal hernia on a porcine chromosome 18, and the locus of the SNP molecular marker is rs332175156 and corresponds to Cgt at the 15224983 bp position on the chromosome 18 of an international porcine reference genome version 11.1; t mutation; the genotype of the gene is CC, CT or TT. The SNP molecular marker provided by the invention is remarkably related to the scrotal hernia morbidity of pigs, and the scrotal hernia morbidity of pigs with the genotype of TT of the SNP molecular marker is lower than that of pigs with the genotype of CT or CC. By breeding the pig with the SNP molecular marker genotype being TT, the improvement progress of the genetic defect of the pig scrotal hernia can be accelerated, and the morbidity of the scrotal hernia is reduced.

The invention discloses a live pig feeding fine management device and system, and relates to the technical field of live pig breeding, the live pig feeding fine management device comprises a pig trough and a readable electronic ear tag, the pig trough is provided with a channel, and a first electronic weighing device is arranged below the channel; according to the invention, through readable electronic ear tag identification, automatic feeding control and double-scale synchronous metering, the identity, accurate feed intake and weight data of pigs are automatically collected when the pigs eat each time, a continuous individual data link is formed, and on the basis, real-time monitoring of the feed intake interval, automatic early warning of abnormal feed deprivation and early detection of diseases can be realized; according to long-term accurate feed conversion ratio and daily weight gain data, a quantitative basis is provided for scientific breeding of high-yield breeding pigs, the non-pregnant period is intervened and effectively shortened in time by continuously analyzing the weight change trend of breeding sows and intelligently assisting early pregnancy diagnosis, and finally, the system changes traditional empirical group management into traditional group management. And the system is upgraded to a data-driven and individualized intelligent management closed loop.

The invention discloses a weighing type boar body length and height measuring device, and relates to the technical field of boar measurement, the weighing type boar body length and height measuring device comprises an outer cage, an inner cage and a weighing mechanism arranged between the outer cage and the inner cage, one end of the inner cage is open, the other end of the inner cage is rotatably provided with a rotating door, and the end, close to the rotating door, in the inner cage is provided with a measuring mechanism; a driving mechanism for driving the boars to move towards the measuring mechanism is arranged at the opening of the inner cage; and the measuring mechanism comprises a driving assembly and screw rods II which are symmetrically and rotatably mounted on the two sides of the inner cage. According to the weighing type boar body length and height measuring device, positioning of boars is achieved through the driving mechanism, and stress reaction and positioning deviation caused by manual driving are avoided; by means of screw transmission and a gear and rack linkage structure of the measuring mechanism, synchronous measurement of the body length and the body height is achieved, weighing is completed when the gestures of the breeding pigs are stable, and the data accuracy is improved; the whole process is controlled by the control panel, so that the measurement efficiency is greatly improved, and the manual labor intensity is reduced.

The present application relates to the field of animal breeding technology, and particularly relates to a molecular marker and application thereof in identifying pig backfat thickness. The molecular marker comprises a nucleic acid with a nucleotide sequence as shown in SEQ ID NO. 1 or SEQ ID NO. 2, and a polymorphism exists at the 9th position, which is A or G. The application comprises: detecting the polymorphism of the molecular marker in a pig sample to be tested, and determining the backfat thickness of the pig to be tested according to the genotype detection result, and pigs with genotype AA have lower backfat thickness than pigs with genotype AG or GG. The present application screens and obtains a molecular marker related to pig backfat thickness. The genotype of the pig at the molecular marker can be detected to realize the prediction and detection of the pig backfat thickness, and the molecular marker can be applied to breed pig varieties with low backfat thickness, and has important application value.

The invention relates to the technical field of livestock breeding measuring tools, in particular to an F-type measuring stick for measuring the body size of a boar, which comprises a main measuring part and a measuring part, the main measuring part comprises a main measuring rod, the surface of the main measuring rod is provided with a stainless steel scale for measurement, and the top end of the main measuring rod is connected with a transverse positioning rod; the vernier measuring part comprises a sliding vernier arranged on the surface of the main measuring rod in a sliding and sleeving mode, an observation window is formed in the surface of the sliding vernier, and the sliding vernier is connected with an arc-shaped positioning rod used for being attached to the body surface of a breeding pig; the telescopic measuring part is inserted into the main measuring rod, and the telescopic measuring part comprises a first-section measuring piece, a second-section measuring piece and a third-section measuring piece which are sequentially arranged in a drawing and inserting mode. An F-shaped integrated structure design is adopted, the arc-shaped positioning head and the anti-skid rubber pad are matched, accurate positioning can be achieved by quickly fitting the boar body contour, measurement of multiple parameters such as the body height and the body length can be completed by a single person, the measurement deviation is effectively reduced, and the operation efficiency of the measuring stick is improved.

The invention provides an SNP (Single Nucleotide Polymorphism) molecular marker which is positioned on a porcine ALDH16A1 gene promoter and affects the drip loss of pork. The SNP molecular marker corresponds to a g.54526592 nucleotide site on a pig chromosome 6 in an international pig genome version 11.1 reference sequence, and the site is located in an ALDH16A1 gene promoter region and shows G / A polymorphism; the G / A polymorphism of the SNP marker is significantly related to a pork drip loss value; the drip loss of an AA genotype individual at the site is remarkably lower than that of an AG genotype and a GG genotype; when the breeding pigs are selected and remained, the breeding sites are AA genotype to-be-detected pigs as the breeding pigs, so that the frequency of the allele A of the sites is increased, and the drip loss character value of offspring pigs is reduced. The technical problem that the pork drip loss character value cannot be screened through living body determination in the actual production process of the live pigs is solved, and technical support is provided for early breeding work of the live pigs.

This disclosure provides a boar restraint device with injury reduction function, comprising: a fixing frame; a flexible restraint strap disposed on the fixing frame, wherein the protective sleeve on the surface of the flexible restraint strap is divided into multiple independently movable segments, each segment of the protective sleeve being freely retractable; a padding layer installed on the internal contact surface of the fixing frame; an adjustment device disposed at both ends of the flexible restraint strap, including slide rails and buckles, for adjusting the length of the restraint strap according to the boar's body size; and support columns disposed at the four corners of the fixing frame for raising the height of the fixing frame to prevent the boar from directly contacting the ground and causing injury; wherein the thickness of the padding layer varies at different locations on the fixing frame; and the internal contact surface of the fixing frame is provided with several protrusions. The solution of this disclosure can solve the problem of boars being injured due to their constant struggle during restraint.

The invention discloses ear tag pliers for animal husbandry and veterinary medicine, and belongs to the technical field of ear tag pliers, the ear tag pliers comprise a grip, a hollow square plate is fixedly connected to the grip, and a vertical marking mechanism used for improving the marking precision is installed in the hollow square plate; the vertical marking mechanism comprises a shell, the shell is fixedly connected to the hollow square plate, meanwhile, a micro air cylinder is fixedly connected into the shell, the micro air cylinder is slidably connected into the hollow square plate in a penetrating mode, and a drive connecting rod is hinged to the telescopic end of the micro air cylinder. According to the pig ear marking device, the vertical marking mechanism composed of the micro air cylinder, the driving connecting rod, the transverse rod, the supporting connecting rod and the top plate is arranged, accurate control over the marking action is achieved, the micro air cylinder serves as a power source to provide stable thrust, and after transmission of the connecting rod mechanism, marking nails vertically penetrate through pig ears; the pig ear damage caused by marking deviation is effectively avoided, the marking precision and consistency are greatly improved, and the safety is guaranteed.

The application discloses a kind of new breed of breeding precision identification method of breeding pig, it is applied to a kind of new breed of breeding precision identification auxiliary system of breeding pig, the system includes the breeding platform located in the top of bottom plate: the inner chamber of the breeding platform is fixedly installed with electronic scale, the front side and rear side of the top of the breeding platform are all fixedly connected with guardrail, the side opposite of two the guardrail is all fixedly installed with camera recorder, the tabletop of the electronic scale is super-white toughened mirror, the front side of the breeding platform is provided with correction component.The weight of breeding pig is measured by electronic scale, the number of teat of breeding pig is detected by the cooperation of correction component and camera recorder, the separated breeding pig after identification is separated under the cooperation of displacement component and guide channel, finally, the top of electronic scale is cleaned by the cooperation of scraping component and advancing component, so as to achieve the purpose of convenient detection of abdominal teat state and quality and automatic separation of captive breeding.

The present application relates to the technical field of livestock safety management, and particularly relates to a digital management system and method for biological safety access of a breeding pig farm. The system is cooperatively operated by a management platform, a mobile terminal, a video monitoring system and an Internet of Things device, controls the whole process of personnel, vehicles, materials, food and feed entering and leaving the breeding pig farm, and builds an integrated closed-loop management mechanism of "plan, execution, supervision, rectification and data". Through plan reporting and approval, the orderly arrangement of access activities is realized. Through job reporting and standard execution, the key operation process is standardized. Through video monitoring and parameter collection, the whole process is supervised. Through the negative list and rectification mechanism, a closed loop of problem processing is formed. Through data collection and report analysis, the access management information is visualized and decision support is realized. The method can effectively improve the biological safety management level, reduce the risk of disease transmission and improve the efficiency of breeding pig breeding.

This invention discloses a SNP molecular marker associated with backfat thickness in pigs. This SNP marker is either a T>C mutation located at position 66885632 bp on chromosome 5 of the international pig genome Sscrofa 11.1 version, or a T>C mutation represented by M at position 106 as shown in SEQ ID NO: 1. This molecular marker is significantly associated with the backfat thickness trait in pigs. Using this molecular marker, an efficient and accurate marker-assisted breeding technique can be established and applied to the genetic improvement of backfat thickness in breeding pigs, thereby improving the meat (lean meat) performance of the pig population, increasing enterprise economic profits, and enhancing core competitiveness. By optimizing the dominant allele of this SNP molecular marker, the frequency of the dominant allele can be increased generation by generation, reducing backfat thickness in the core breeding population, accelerating the improvement of related carcass traits in breeding pigs, and thus effectively improving the economic benefits of pig breeding.

The utility model relates to the field of breeding feeding devices, in particular to a convenient feeding device for breeding pigs, which comprises a storage tank, a feed inlet is arranged on the upper surface of the storage tank, a valve is fixedly mounted on the lower surface of the storage tank, and a first conveying shell is fixedly mounted on the lower surface of the valve. By arranging a large motor, a first stirring blade, a small motor, a rocker, a sliding door and a fixing groove and utilizing the synergistic effect of the structures, the automation degree and practicability of the feed conveying and feeding system are greatly improved, the large motor drives the first stirring blade to rotate at a high speed, feed can be efficiently stirred and conveyed, and the feeding efficiency is improved. The small motor can flexibly control the sliding door to accurately adjust the feeding amount of the feed, accurate control is conducted through the sliding door, accurate conveying and feeding of the feed can be guaranteed, the efficiency and quality of breeding work are improved, meanwhile, the breeding cost is reduced, and powerful technical support is provided for modernization development of the breeding industry.

The invention discloses a method for assisting detection of pig backfat thickness and a special primer pair thereof, and relates to the technical field of biology. A primer pair of the DNA fragment of the A polymorphic site; the SSC is 10 g. 20549610 Ggt, and the SSC is 10 g. The A polymorphic site is the 20549610th nucleotide site Ggt from the 5'terminal on a chromosome 10 of a reference sequence of an international porcine genome 11.1 version (Sscrofa11.1 Primary Assessment), and the A polymorphic site is the 20549610th nucleotide site Ggt from the 5 'terminal on the chromosome 10 of the reference sequence of the Sscrofa11.1 Primary Assessment; a mutation. According to the method for assisting in detecting the pig backfat thickness and the special primer pair thereof, a sequencing method is used for detecting SSC10g. 20549610 Ggt; according to the method, the genotype of a pig individual is judged according to the basic group at the A polymorphic site, so that the backfat thickness character of the pig is selected, the average backfat thickness of the pig can be reduced by about 3.37 mm, and the pig with better production performance is obtained; according to the method provided by the invention, the pigs to be selected can be screened in an early stage, and the problem of long time for selecting excellent breeding pigs in actual production is effectively solved.

The application discloses a kind of based on UWB's breeding pig walk monitoring control method, belong to general control or regulation field.The method steps of the present application are as follows: placing four base stations A, B, C, D in the square four corners position of breeding farm;UWB positioning tag with buzzer is placed on the body of breeding pig, and the positioning coordinates of breeding pig are acquired in real time;By detecting the coordinate position change of breeding pig, it can be judged whether breeding pig walks or not, if the position of pig is almost unchanged within a certain time, then the music is played through the buzzer of UWB positioning tag, reminding pig to walk, to exercise the muscle purpose of pig, so as to improve the taste of pork;And still can obtain the exercise path of pig through the change of coordinate position, estimate the daily exercise amount of pig, for the pig with less exercise amount, then automatic stimulation frequency will be strengthened, so that the daily exercise amount of each pig reaches the standard.

The utility model discloses a kind of grain-saving environmental protection type breeding devices of breeding pig, it is related to breeding pig breeding device technical field, including weighing base, the left and right sides of weighing base are evenly provided with slope, and the front and back sides of slope are fixedly installed with guardrail, the rear side of weighing base is fixedly installed with second support frame, and second support frame top is provided with display screen, the top surface of weighing base is provided with drainage slope, and the top of drainage slope is provided with grid table, the lower side of the front and back sides of grid table is fixedly installed with sewage-collecting tank, the front and back sides of weighing base are installed with feeding table, and the outside of feeding table is fixedly installed with first support frame, and first support frame is connected and installed with discharging box, the side of feeding table close to grid table is provided with infrared sensor. The grain-saving environmental protection type breeding device of breeding pig solves the problem of feed waste and environmental control deficiency in traditional breeding, improves feed utilization, improves cleaning efficiency, and is suitable for grain-saving environmental protection type breeding work of breeding pig.

The application belongs to the technical field of molecular biology and molecular marker, and particularly relates to a SNP molecular marker related to a pig girth trait on a chromosome 4 of a pig and application thereof. The SNP molecular marker related to the pig girth trait on the chromosome 4, wherein a SNP site corresponds to a T>G mutation at position 122124975 on a chromosome 4 of an international pig reference genome version 11.1, and the polymorphism of the base at the site influences the pig girth trait. The application can increase the frequency of the dominant allele generation by generation by selecting the dominant allele of the SNP, improve the pig girth trait, select the excellent germplasm of the above traits, accelerate the progress of pig genetic improvement, and thus effectively improve the economic benefits of pig breeding.

The application discloses a high-quality pig creating and breeding method, which comprises the following steps: 1) a certain blood structure of purebred Luchuan pigs is screened through molecular pedigree construction based on genome information, and the screened Luchuan pigs are used as female parents to cross with Duroc boars to generate Duroc-Luchuan crossbred pigs; 2) the Duroc-Luchuan crossbred pigs are used as female parents to cross with Barcshires boars to generate Bar-Duroc-Luchuan crossbred pigs; 3) the Bar-Duroc-Luchuan crossbred pigs are used as female parents to cross with Duroc boars to generate Duroc-Bar-Duroc-Luchuan crossbred pigs; 4) based on the Duroc-Bar-Duroc-Luchuan crossbred pigs, male and female pigs meeting the breeding target are selected according to a selection index to realize horizontal cross fixation, and an excellent horizontal cross offspring is selected to form a breeding core group; and 5) the core group in the step 4) is used as a zero generation group, a group succession breeding method is adopted, whole genome selection and genome prediction and the like are used to estimate a genome breeding value of breeding pigs and predict a phenotype, and precise intelligent breeding selection and matching are realized.

This invention relates to a digital monitoring method, system, and medium for biosecurity in pig houses, belonging to the field of pig house monitoring technology. The invention utilizes data statistics and key indicator calculations based on control data to generate a visual dashboard. Through spatiotemporal aggregation analysis of multi-source data on pigs, it identifies the spatial and temporal clustering of abnormal pigs and encodes multi-dimensional features to form a high-dimensional feature vector. Based on this high-dimensional feature vector, real-time risk monitoring and early warning are performed, and contact network tracing is conducted to generate tracing results. Based on the tracing results, propagation path simulation is performed to generate optimal decision-making suggestions, which are then displayed according to a preset method. This invention, through early detection and early intervention, can reduce the risk of disease spread in breeding pig farms and reduce losses such as pig deaths and production stoppages caused by epidemics. Calculations show that annual losses per farm can be reduced by 15%-30%.

The invention discloses application of an SNP (Single Nucleotide Polymorphism) molecular marker located on a pig chromosome 7 and related to pig lactation ability, the site of the SNP molecular marker is rs699535761, and corresponds to Agt at the 112468621bp on the chromosome 7 of the international pig reference genome version 11.1; g mutation; the genotype of the gene is AA, GA or GG. The SNP molecular marker provided by the invention is remarkably related to the lactation character of the pig, the identification of the total weight gain character and / or the lactation character of the 7-day-old nest of the pig can be realized by identifying the single nucleotide polymorphism of the SNP molecular marker and / or the genotype of the SNP molecular marker, the breeding process of the pig can be accelerated by breeding the pig with the genotype of the SNP molecular marker being GG, and the breeding efficiency of the pig is improved. And genetic improvement of pigs is realized.

The application belongs to the technical field of intelligent breeding, and provides a sow leg automatic scoring method and device based on three-dimensional point cloud. The method comprises the following steps: acquiring a target three-dimensional point cloud model of a pig; extracting a leg point cloud set corresponding to each leg of the pig from the target three-dimensional point cloud model; determining leg key point data of each leg from the leg point cloud set corresponding to each leg; determining trunk key point data from the target three-dimensional point cloud model according to the leg key point data; determining a posture determination result of the pig according to the target three-dimensional point cloud model, the leg key point data of each leg and the trunk key point data; and in the case that the posture determination result indicates that the pig is in a standard standing posture, determining a leg structure type and a leg structure score of the pig according to the leg key point data. The application can stably identify the leg structure characteristics of the pig and realize consistent automatic scoring, and has good application potential in terms of accuracy, robustness and interpretability.

The patent application discloses a large-scale pig breeding water supply system device, and particularly relates to the field of water supply systems. The device comprises a breeding house, a drinking trough is slidably connected in the breeding house, a supporting spring is connected between the drinking trough and the breeding house, a connecting plate is fixedly connected in the drinking trough, a water inlet pipe is fixedly connected on the connecting plate, the water inlet pipe is communicated with the drinking trough, a rainwater collecting box with an opening is arranged on the top of the breeding house, an activated carbon layer is arranged in the rainwater collecting box, the activated carbon layer divides the rainwater collecting box into a water storage area and a drinking water area, the same parts of the breeding house and the rainwater collecting box are jointly penetrated by a through hole, the water inlet pipe is slidably and sealingly connected with the through hole, a water supplement pipe is further communicated with the drinking water area, and the water supplement pipe is communicated with an external water source through a pressure pump. The technical scheme of the present application solves the problems of high labor intensity in water supplement and failure to utilize other water resources to reduce breeding cost in the process of breeding pigs, and realizes automatic water supplement and excrement cleaning.