207 results about "Breeding pig" patented technology

The invention relates to the technical field of image processing, and discloses an intelligent weight monitoring method, system and device for bred pigs and a storage medium. The method comprises the following steps: acquiring an original data set through multi-angle image acquisition; carrying out image processing by utilizing adaptive histogram equalization and Gaussian filtering; obtaining body shape parameters by adopting contour-skeleton feature extraction and curvature analysis; performing multi-source fusion processing in combination with the data of the Internet of Things; body weight modeling is carried out based on a hierarchy-increment prediction model and an attention mechanism; and generating a feeding scheme through reinforcement learning. According to the invention, the technical problems of insufficient data fusion and low prediction precision in the existing breeding pig weight monitoring method are solved.

The utility model relates to the technical field of boar breeding, and discloses a combined pigsty for boar breeding, which comprises a bottom plate, a plurality of groups of support columns arranged at the top of the bottom plate, a fence arranged between two adjacent groups of support columns, a fixed fence arranged between two adjacent groups of support columns, and a plurality of groups of fence rods distributed at intervals up and down, the two ends of the fence are connected with the supporting columns through adjusting mechanisms, the fixed fence is provided with an opening, and a pigsty door is hinged to the opening of the fixed fence. The driving assembly pushes the lowermost surrounding rod to move, the lowermost surrounding rod moves to drive the rotating rod to rotate, the rotating rod rotates to change the distance between the upper surrounding rod and the lower surrounding rod which are connected with the rotating rod, the purpose of adjustment is achieved, each surrounding rod does not need to be detached for readjustment during adjustment, and the adjustment process is fast, simple, time-saving and labor-saving.

The invention belongs to the technical field of molecular biotechnology and molecular markers, and particularly relates to an SNP (Single Nucleotide Polymorphism) molecular marker located on a pig chromosome 13 and related to the right nipple number character and application. The site of the SNP marker is the 132654738th nucleotide site of the 132654738th nucleotide site of the 13th chromosome of the international pig reference genome version 11.1, and the basic group of the site is G or A. By optimizing the dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the number of right nipples of pigs can be increased, the lactation capacity of sows can be improved, the weaning survival rate of piglets can be increased, excellent breeding pigs with the characters can be bred, the genetic improvement progress of the pigs can be accelerated, and the economic benefits of breeding of the breeding pigs can be effectively improved.

The invention discloses a pig breeding screening method and system based on a body type database, and particularly relates to the technical field of pig breeding screening. The system comprises a multi-modal sign data acquisition and integration module for collecting and standardizing heterogeneous data sources such as phenotypic signs, genomics and environmental parameters of breeding pigs in real time, and a multi-dimensional biological characteristic modeling and analysis module for analyzing a nonlinear action mechanism among genetic markers, phenotypic characteristics and environmental factors, the genetic potential intelligent judgment module is used for quantitatively evaluating spatial expression potential and intergenerational transmission probability of genetic advantages of the breeding pigs through a deep learning algorithm; and the intelligent screening and dynamic monitoring module is used for establishing a multi-dimensional threshold dynamic regulation and control mechanism to realize accurate elimination decision and continuous optimization of a germplasm resource library. According to the method, the screening accuracy is remarkably improved by designing multi-source data fusion and online optimization capability, meanwhile, mistaken elimination is reduced through a redundant superior species temporary storage management module, and collaborative improvement of population genetic diversity and environmental adaptability is ensured.

The invention relates to the technical field of molecular markers and animal genetic breeding, in particular to an SNP marker influencing the content of porcine inosine and application of the SNP marker. The 10 SNP molecular markers closely related to the porcine inosine content are researched and determined on the basis of American-series purebred landrace, American-series purebred large white pigs and American-series purebred duroc, the dominant allele frequency can be increased generation by generation by optimizing the dominant allele of the SNP, the inosine content can be reduced, and the molecular markers can be used for identifying the porcine inosine content. The pig genetic improvement progress is accelerated, so that the economic benefit of breeding pig breeding is effectively improved.

The invention discloses a related SNP (Single Nucleotide Polymorphism) molecular marker influencing the dead birth number of sows on a pig chromosome 1. An SNP site of the molecular marker corresponds to a 230578111 site Cgt on a chromosome 1 of a reference sequence of an international pig genome version 11.1; the polymorphism of the basic group at the site leads to the difference of the number of stillbirth birth of pigs. By verifying the influence effect of the molecular marker on the stillbirth number of the sow, an efficient and accurate molecular marker assisted breeding technology is finally established, and is applied to genetic improvement of reduction of the stillbirth number of boars, so that the reproductive performance of offspring pigs is improved, and the economic profit of enterprises is increased. Accordingly, a corresponding genetic improvement method is established, and by optimizing the dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the number of stillbirth of sows is reduced, and the progress of genetic improvement of pigs is accelerated, so that the economic benefit of breeding of the boars is effectively improved. Besides, a primer pair for amplifying a nucleotide sequence of the SNP molecular marker is further researched and designed, breeding traits can be rapidly and accurately bred through the primer pair, and the breeding process is accelerated.

The invention provides application of a CD47 gene in detection of pig litter size phenotype and application of an SNP site of the CD47 gene in gene expression regulation. It is found that the CD47 gene is regulated and controlled by the SNP site rs323354626, it is further found that the rs323354626 site and the phenotype of the total litter size of sows show the highest significance, and it is indicated that the CD47 gene and the total litter size of the sows have large correlation. In three main commercial varieties of pigs, namely Duroc, Landrace and Yorkshire, the CD47 expression level in testis tissues is negatively correlated with the litter size, which indicates that the expression mode of the CD47 gene may influence the reproductive performance of the pigs, and the litter size phenotype of the pigs can be detected by detecting the CD47 gene expression level in the testis of the breeding pigs or somatic cells of the sows. Or the litter size of the pigs is influenced by regulating and controlling the expression level of the CD47 gene through the rs323354626 site, and the discovery lays a foundation for improving the breeding efficiency of the pigs, especially for a breeding method for increasing the litter size.

The invention relates to application of a molecular marker related to pork flavor. The molecular marker is related to the content of alpha-nicotinamide adenine dinucleotide (NAD < + >) in longissimus dorsi of a pig. The invention discloses a method for identifying pork flavor and a breeding method for breeding pigs with better pork flavor. According to the method, the 131363728th nucleotide site of a pig to be detected on a chromosome 8 of a pig reference genome Sscrofa11.1 and GCF000003025.6 is detected, the genotype of the pig is judged, the pork flavor is identified, the content of alpha-nicotinamide adenine dinucleotide (NAD +) in longissimus dorsi muscle of a TT genotype at the site is higher than that of a pig individual of a CT genotype, and the content of the pig of the CT genotype is higher than that of a pig individual of a CC genotype. In actual breeding work, to-be-detected pigs with the 131363728 site genotype being TT can be selected as parents for breeding, and the method has important significance on breeding pigs with better pork flavor.

The invention belongs to the technical field of molecular marker assisted breeding, and particularly relates to an SNP molecular marker related to pig growth traits as well as a detection primer, a kit and application thereof. The SNP molecular marker is located at the 1001st site of a nucleotide sequence as shown in SEQ ID NO.1 and has CC, CT and TT genotypes; the day age of the CC genotype pig individuals reaching 100 kg and / or the day age of the CC genotype pig individuals reaching 120 kg are obviously lower than those of the CT genotype pig individuals and the TT genotype pig individuals. By detecting the genotype of the molecular marker, rapid, accurate and high-throughput identification or evaluation of pigs with the weight of 100 kg and / or the day age of 120 kg can be achieved on the molecular level, the accuracy and reliability of breeding selection are improved, the breeding period of excellent breeding pigs in production is shortened, the breeding efficiency and precision are improved, and the breeding cost is reduced. And the SNP molecular marker has potential important value for genetic improvement of pig growth traits.

The invention discloses a pig weight estimation method based on vision, and belongs to the field of intelligent breeding, and the method comprises the following steps: obtaining an initial image set of a breeding pig based on a multi-view camera system; performing image preprocessing on the initial image set to obtain mask coordinates; registering the multi-view point cloud of the boar depth image into a complete three-dimensional model by using a skeleton constraint ICP algorithm based on the mask coordinates, and determining the body structure representation of the boar based on the complete three-dimensional model; and inputting the body structure representation of the boar, the back fat texture features of the boar and the kinetic energy index into a double-branch prediction model to obtain a final weight estimation value of the boar. According to the invention, the influence of complex environment and light change of a farm is overcome, and accurate non-contact measurement of the boar weight is realized.

The invention relates to the technical field of molecular markers and animal genetic breeding, in particular to an SNP marker influencing pig UMP content and application thereof. Whole genome re-sequencing and GWAS analysis are adopted, American-series purebred landrace pigs, American-series purebred large white pigs and American-series purebred duroc are used as research objects, seven SNP markers related to the pig UMP content are researched and determined, by optimizing dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the UMP content can be increased, and the pig UMP content can be improved. The pig genetic improvement progress is accelerated, so that the economic benefit of breeding pig breeding is effectively improved.

The invention discloses an SNP (Single Nucleotide Polymorphism) molecular marker associated with a pig backfat thickness character and application. The nucleotide sequence of the SNP molecular marker is as shown in SEQ ID NO: 1; one SNP molecular marker site A / G is arranged at the 254bp position of the sequence of the SNP molecular marker. Genetic typing is carried out by utilizing a gene chip technology, whole genome association analysis is carried out in combination with the character of correcting the 100 kg backfat thickness of a large white pig, one SNP molecular marker remarkably related to the character is screened out, and a new marker resource is provided for molecular breeding of the growth character of the breeding pig.

The invention belongs to the technical field of molecular markers, and particularly relates to an SNP (Single Nucleotide Polymorphism) molecular marker of a PRRX2 gene associated with an African swine fever virus antibody level, a primer and application. The locus of the SNP molecular marker is located at the 143bp position of the third exon of the porcine PRRX2 gene with the gene version number of XM005654574.2, the SNP molecular marker has T / C polymorphism, and the nucleotide sequence of the SNP molecular marker is shown as SEQ ID NO.3. The invention also discloses a kit for detecting the porcine PRRX2 gene with the gene version number of XM005654574.2. The molecular marker provided by the invention is closely associated with the African swine fever virus antibody level of the pig, and compared with the pig with the genotype of TC / CC at the site, the pig blood with the genotype of TT has a higher African swine fever virus antibody level; the molecular marker can be applied to breeding of high-quality breeding pigs resistant to African swine fever, so that the economic benefit of breeding pigs is effectively improved.

The invention belongs to the technical field of molecular biotechnology and molecular markers, and particularly relates to an SNP molecular marker located on a pig RBFOX1 gene locus and related to ingestion behavior characters and application of the SNP molecular marker. An SNP site of the SNP molecular marker corresponds to the 35094559 Ggt on a chromosome 3 of a reference sequence of an international pig reference genome version 11.1; t mutation. By optimizing the dominant alleles of the molecular marker, the frequency of the dominant alleles can be increased generation by generation, the average daily ingestion times of pigs can be reduced, the average ingestion time of each time can be increased, and the feed conversion efficiency of the pigs can be improved. The breeding of the excellent boars with the characters is beneficial to accelerating the progress of genetic improvement of the boars and improving the economic benefits of pig breeding.

The invention relates to application of recognition site mutation of OCT4 in breeding of pig spine number and rib number. The recognition site of the OCT4 gene is at the 98095075bp position of the No.7 chromosome of a pig genome, the basic group is mutated from T to C, and the version number of the genome is Sscrofa11.1; during breeding, the number of spines and the number of ribs of offspring pigs are increased by reserving individuals with the genotype of the recognition site being CC and eliminating individuals with the genotype being TC or TT, the production performance of the bred pigs can be effectively improved, the pig strain with the character of the high number of spines and the number of ribs is obtained, and therefore the production performance of the pigs of the strain is improved, and the breeding cost is reduced. The genetic improvement progress and the breeding progress of the breeding pigs are accelerated.

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 present invention discloses a molecular marker associated with the age at which pigs reach 115 kg of weight. The molecular marker is a G>A mutation located at the 160284793 bp site of chromosome 1 of the international porcine genome Sscrofa11.1 version or a G>A mutation represented by M at the 131st site as shown in SEQ ID NO: 1. The molecular marker is significantly associated with the age at which pigs reach 115 kg of weight. By using the molecular marker, an efficient and accurate molecular marker-assisted breeding technology can be established, which can be applied to genetic improvement of reducing the age at which breeding pigs reach 115 kg of weight, thereby increasing the growth rate of the pig population, improving the economic profit of the enterprise, and increasing core competitiveness. By optimizing the dominant allele of the SNP molecular marker, the dominant allele frequency can be increased from generation to generation, the age at which core group breeding pigs reach 115 kg of weight can be reduced, and the improvement progress of breeding pig-related growth traits can be accelerated, thereby effectively improving the economic benefits of breeding pigs.

The utility model relates to the field of boar sensible temperature reduction, and discloses a multi-angle spray head device for reducing boar sensible temperature, which comprises a hog house, support plates are fixed at two ends of the top of the hog house, a through groove is formed in the side wall of one support plate, and the inner side walls of the two support plates are rotatably connected with the same rotating shaft; one end of the rotating shaft penetrates through the outer side wall of the other supporting plate, a rotating mechanism used for rotating the rotating shaft is arranged on the outer side wall of the other supporting plate, a first connecting pipe is arranged at the top of the pig house, and the first connecting pipe is parallel to the rotating shaft. The rotating mechanism drives the rotating shaft to rotate, then the first connecting pipe is driven to swing left and right, multi-angle spraying work can be conducted, the spraying area is increased, the situation that the temperature is high due to the fact that water mist cannot be sprayed to part of the area is avoided, and the comfort degree of the boar growth environment is improved; the water level in the water storage tank is prevented from being too low to affect comfort and health of the boars.

The invention is suitable for the technical field of molecular genetics, and provides an SNP molecular marker related to pig backfat thickness and application thereof. The invention studies and determines that the pig backfat thickness related molecular marker is located at the 95583333rd site (corresponding to the 701st basic group A / G mutation of SEQ ID NO: 1) of the No.18 chromosome of the international pig reference genome version 11.1, and verifies the influence effect of the molecular marker on the pig backfat thickness character. And when the basic group at the site is A, the pig has lower back fat thickness. On the basis, a molecular marker-assisted selection breeding technology for rapidly improving the backfat thickness character of the pig is established, the frequency can be increased generation by generation by optimizing the dominant allele (A), the backfat thickness of the breeding pig is remarkably reduced, the genetic improvement process of commercial pig herds containing landrace and large white pig blood lineage is accelerated, and the breeding efficiency is improved; the sales profit is increased for enterprises, the core competitiveness is improved, and the economic benefits of commercial pigs are improved.

The invention belongs to the technical field of molecular biotechnology and molecular markers, and particularly relates to an SNP (Single Nucleotide Polymorphism) molecular marker located on a pig chromosome 15 and related to an average daily feed intake character and an application of the SNP molecular marker. The SNP site of the SNP molecular marker located on the No.15 chromosome of the pig and related to the average daily feed intake character corresponds to the 122335983th site Cgt on the No.15 chromosome of a reference sequence of an international pig reference genome version 11.1; t mutation. By optimizing the dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the average daily feed intake of the boars is reduced to a certain extent, the feed efficiency of the boars is improved, the excellent boars with the characters are bred, and the progress of genetic improvement of the boars is accelerated, so that the economic benefit of breeding of the boars is effectively improved.

The invention belongs to the technical field of molecular marker-assisted breeding, and particularly relates to an SNP molecular marker related to pig carcass length and muscle color value, and a detection primer, a kit and application thereof, the SNP molecular marker has GG, CC and CG genotypes, and the meat quality character of a pig individual with the GG genotype is superior to that of a pig individual with the CG genotype and that of a pig individual with the CC genotype. By detecting the genotype of the molecular marker, phenotype judgment can be converted into genotype identification, a detection technical means is provided for simultaneously carrying out early breeding of multiple traits and improving the breeding efficiency of boars with excellent meat quality, and a reliable targeting site is also provided for genetic improvement of pork quality traits; by selecting the breeding pigs with the GG genotypes reserved, the frequency of the GG genotypes of the groups is gradually increased, the breeding pig groups with high meat yield and good meat quality can be rapidly bred, and a rapid and effective way is provided for improving the groups with long pig carcasses and muscle color values.

The invention discloses a breeding method and device for breeding boars, belongs to the technical field of breeding of the boars, and aims to solve the problems that in order to prevent seminal fluid from flowing out after insemination, an external air source is often relied on, so that discomfort of sows is easily caused, and the success rate of fertilization is influenced. The problem that the pregnancy effect is affected due to the fact that a pipeline is left in the body for a long time and discomfort of a pig is easily caused is solved, the gel suppository can be attached to the irregular mucous membrane form of the cervix uteri inner opening after being expanded, leakage caused by reserved gaps is avoided, the expansion degree does not need to be manually controlled, the error-tolerant rate is higher, and the application range is wide. Meanwhile, the plugging mechanism of the gel suppository is made of a natural degradation material, can be naturally degraded and removed or discharged along with uterus peristalsis, has no long-term retention risk, can improve the vagina flushing effect, can simulate the action during mating in the vagina, facilitates fertilization reaction of sows and is more beneficial to successful fertilization.

The invention belongs to the technical field of molecular biology, particularly relates to a pig chromosome 3 TMC7 gene as a meat-producing character molecular breeding marker and application, and aims to provide a new marker and technical support for meat-producing character molecular breeding of pigs. The molecular marker is located at the 26346502 base in a pig chromosome 3 TMC7 gene, and allele G / T polymorphism exists at the site. A correlation analysis result shows that in American and French large white pig populations, the eye muscle area of a GG genotype individual is remarkably higher than that of other genotype individuals (plt; 0.05), and it is indicated that the genotype is a favorable genotype of the eye muscle area character. The SNP marker provided by the invention provides a new molecular tool for genetic breeding of pig eye muscle area characters, and can be used for auxiliary screening of breeding pigs with excellent meat production performance, so that the breeding process of pig breeds with high lean meat percentage is accelerated.

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 discloses an SNP (Single Nucleotide Polymorphism) molecular marker positioned on a pig chromosome 10 and related to a total lean meat percentage. An SNP site of the SNP molecular marker corresponds to Tgt at a position of 11840666bp of a chromosome 10 of an international pig reference genome Ensembl Sscrofa11.1 version; g mutation; the nucleotide sequence of the SNP molecular marker is SEQ ID NO.1, wherein M in the sequence is T or G. Researches show that the polymorphism of the basic group at the site leads to the difference of the total lean meat percentage. Accordingly, the inventor establishes a corresponding pig genetic improvement method, and by optimizing the dominant alleles of the SNP, the frequency of the dominant alleles can be increased generation by generation, the total lean meat percentage of pigs can be increased, the progress of pig genetic improvement can be accelerated, and the economic benefit of breeding pig breeding can be effectively improved. In addition, the inventor also researches and designs a primer pair for amplifying the nucleotide sequence of the SNP molecular marker, and by virtue of the primer pair, the slaughter traits can be quickly and accurately bred, and the breeding process is 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.