78 results about "Dairy cattle" patented technology

The invention provides a cattle behavior recognition method based on a three-axis attitude angle, and belongs to the technical field of intelligent animal husbandry management. According to the method, three-axis attitude angle signals such as the yaw angle (Yaw), the pitch angle (Pitch) and the roll angle (Roll) of the head of a cattle are collected in real time through a gyroscope sensor arranged in wearable equipment such as a cattle ear tag. The method does not depend on images, accelerometers, microphones or other modalities, only based on attitude angle signals, multiple algorithms such as a time sequence sliding window, frequency domain analysis, weighted scoring, sudden change detection and state transition modeling are utilized, and multiple typical behaviors such as ingestion, rumination, water drinking, bed lying, limping, licking, fright jumping and low activity are recognized. The method is suitable for multiple cattle breeds such as dairy cattle, beef cattle and buffalo, has the advantages of low power consumption, lightweight calculation, low deployment cost, accurate identification and the like, and is convenient for realizing behavior monitoring and health management of large-scale cattle individuals. The algorithm path can be flexibly selected, but a core input signal is only limited to attitude angle data, so that the technical boundary of the patent protection of the method is formed.

This invention relates to the field of manure cleaning devices, and discloses a manure cleaning device for dairy farming, including a fixing mechanism, which further includes a connecting column. A limiting rod is slidably connected to the outer wall of the connecting column. A first connecting head is fixedly connected to the front of the limiting rod, and a second connecting head is fixedly connected to the back of the limiting rod. A pressure rod is provided, and the rotating pressure rod squeezes the manure in segments, so that the subsequent scraper applies a pushing force to the manure, causing the manure on both sides and the water inside the manure to converge towards the middle. This prevents the water inside the manure from moving to the bottom of the ditch when the scraper squeezes the solid-liquid mixture of manure. Because a large amount of liquid moves downward, it will increase the viscosity of the manure at the bottom, causing a large amount of manure to remain stuck to the bottom of the ditch after being scraped by the scraper, which is difficult to remove, resulting in a reduction in the effective volume of the manure ditch.

The utility model relates to the technical field of cow breeding, and provides a grass rolling device for cow breeding, which comprises a fixing frame, the top of the fixing frame is fixedly connected with a supporting plate, and the top of the supporting plate is fixedly connected with a machine body. By means of the technical scheme, the cow breeding problem in the prior art is solved, a supporting disc, a rotating shaft, a connecting shaft, a fixing plate, a first torsional spring rod, a sleeve, a push rod, an extrusion block, a rectangular plate and other assemblies are driven to be matched with one another through driving force of a motor, and a grass kneading assembly arranged on the side face of the machine body is started to conduct kneading work; materials are prevented from splashing through rapid movement and the striker plate fixed to the side face of the machine body, the materials fall onto the supporting disc along the shape of the striker plate, then a worker starts the motor fixed to the bottom of the inner wall of the fixing disc, and waste caused by splashing of the materials is prevented after rubbing is completed.

According to the technical scheme, the dairy cow breeding manure dewatering and drying treatment equipment is characterized by comprising a protective shell, a feeding hopper is fixedly arranged at the top of the protective shell, an extrusion assembly is arranged on one side of the protective shell and comprises a first motor, the first motor is fixedly connected to one side of the protective shell, and the first motor is connected with the feeding hopper. A first cylindrical gear is fixedly connected to the end, close to the feeding hopper, of a first motor driving shaft, a first rolling wheel is fixedly connected to the end, away from the first motor, of the first cylindrical gear, a second cylindrical gear is arranged in the protection shell, and the first cylindrical gear is in meshed connection with the second cylindrical gear; through mutual cooperation of a feeding hopper, a first motor, a first cylindrical gear, a first roller, a second cylindrical gear, a second roller, two synchronous belts, a second rotating rod and a conveying belt, the first roller and the second roller extrude cow manure, and the water content of the cow manure is reduced.

The present invention relates to the treatment of viral infections using photosensitizers in dairy cattle. The invention also relates to the prevention of transmission of viral infections from dairy cattle infected by virus to the same or other species. The invention is also directed to methods of controlling infectious agents on milking equipment for dairy cattle. The invention is further directed to milking processes including the treatment of viral infections and / or the prevention of transmission of viral infections from dairy cattle infected by virus to the same or other species and / or the methods for controlling infectious agents on milking equipment for dairy cattle.

The invention discloses a dairy cow early embryo sex identification method, and belongs to the technical field of dairy cow breeding and breeding. The identification method comprises the following steps: (1) culturing a dairy cow embryo to an early blastocyst stage, starting to perform single-embryo single-droplet culture, and after culturing until a blastocyst cavity is formed, punching a blastocyst zona pellucida to promote the blastocyst to shrink and release blastocyst cavity liquid; (2) collecting blastocyst cavity liquid, and extracting embryo free DNA in the blastocyst cavity liquid; (3) by taking the free DNA as a template, designing a primer to amplify a specific repetitive sequence ChrY fragment of the bull Y chromosome; if the amplification product exists, the embryo is identified as a bull, and if the amplification product does not exist, the embryo is identified as a cow. The method can ensure that the embryo free DNA in the obtained blastocyst cavity fluid is only derived from the embryo, and can effectively avoid embryo injury. According to the method disclosed by the invention, the copy number of the amplified target area in the bull Y chromosome is more than 2000 times, a detection signal can be amplified, and the detection accuracy is improved.

The invention discloses a milk and meat dual-purpose cattle mixed feeding device, and particularly relates to the technical field of mixed feeding, the milk and meat dual-purpose cattle mixed feeding device comprises a shell, supporting legs are fixedly connected to four corners of the lower end of the shell, a control box is fixedly mounted at the front end of the shell, a cabinet door is rotatably connected to the right end of the shell, and a crushing and screening assembly is arranged in an inner cavity of the shell; a drying assembly is arranged in the inner cavity of the shell and located on the crushing and screening assembly. According to the mixed feeding device for the dairy cattle and the meat cattle, the screening mechanism is arranged, so that crushed feed can be screened under the action of vibration, unqualified feed is separated, the quality of the feed is improved, it is ensured that the dairy cattle and the meat cattle obtain more uniform feed meeting the standard, and the quality of the dairy cattle and the meat cattle is improved. Therefore, the digestion and absorption efficiency and growth speed are improved. By removing unqualified feed, waste is reduced, meanwhile, the utilization rate of the feed is optimized, breeding benefits can be improved, and health and productivity of cattle are guaranteed.

The utility model provides a kind of ventilation and heat dissipation shed for cow breeding, including shed board, the shed board side is equipped with ventilation tube one, ventilation tube one inside is equipped with electric fan one, the shed board top is equipped with the ventilation mechanism of ventilation and heat dissipation, the middle part of shed board inboard is equipped with the air supply mechanism of air supply, the middle part of shed board inboard is equipped with the heat dissipation mechanism of auxiliary heat dissipation;The mirror image of ventilation tube one is equipped in shed board both sides, ventilation tube one is distributed at shed board side equidistantly, shed board top surface is opened with ventilation opening, ventilation opening is distributed in mirror image in shed board top surface, ventilation opening is distributed equidistantly in shed board top, ventilation opening is correspondingly set with ventilation mechanism, the inboard of shed board is equipped with longitudinal support frame.The utility model sends the air outside shed into middle part in shed by air supply mechanism, cooperate multiple ventilation tube one and ventilation mechanism can be removed to the air entering shed from multiple positions to outside shed, and then can realize the effect of uniform ventilation, it is convenient to fully replace the air in shed and to shed in cooling.

The invention relates to the field of molecular biology, and discloses a haplotype marker for dairy cow milk production butter-fat percentage character breeding and application of the haplotype marker, the haplotype marker is composed of three SNP sites in a strong linkage imbalance state, and the three SNP sites are located in a Block1 haplotype block region of a 10 # chromosome NC037337.1 of a dairy cow ARS-UCD1.2 genome; the three SNP sites are as follows: SNP1: g.59680573 A > C, SNP2: g.59743173 G > C, and SNP3: g.59743414 C > T; the dominant haplotype of the haplotype marker is H2, and the allele combination of the haplotype marker is SNP1-A, SNP2-G and SNP3-C; the homozygous H2H2 of the dominant haplotype H2 is significantly related to the high milk fat percentage character of milk production of dairy cows. The bottleneck of the traditional technology is solved, and the breeding accuracy is remarkably improved; the screening detection technical scheme is stable and reliable and has a wide application range; the milk production quality of groups is improved, and the industrial economic value is enhanced.

The utility model relates to a hay cutting machine for dairy cow breeding, and belongs to the technical field of dairy cow breeding, the hay cutting machine comprises a charging barrel used for feeding hay bundles and a cutting structure arranged on the charging barrel, the charging barrel comprises a bottom barrel fixedly installed on a base and a cylinder rotationally connected to the bottom barrel, and the cutting structure is arranged on the bottom barrel; a feeding device and a discharging structure which are used for feeding and discharging cut hay are arranged on the material barrel, and the discharging structure comprises an air pipe fixedly installed on one side face of the bottom barrel. According to the hay cutting machine for cow breeding, the cylinder and the bottom cylinder are obliquely installed on the base, the first rotating disc and the second rotating disc which rotate oppositely are arranged on the inner wall of the bottom cylinder, so that the cutting uniformity of materials located in the cylinder is good, and hay is rotationally thrown through the bracket located on one side of the cylinder; and the bottom cylinder and the air pipe are arranged to communicate with each other, so that cutting feeding and discharging of the cylinder can be automatically completed, and the feeding process and the discharging process do not need to be stopped.

The utility model relates to the technical field of dairy cow physical fitness detection devices, in particular to a dairy cow physical fitness detection device for the dairy cow breeding industry, which comprises a flexible bandage, a limiting mechanism and an intelligent neck ring mounted on the outer wall of the flexible bandage, and the limiting mechanism comprises a limiting ring slidably connected with the outer wall of the flexible bandage. A spring is fixedly connected to the rear end of the limiting ring, a supporting block is fixedly connected to the other end of the spring, two obliquely-arranged supporting rods are fixedly connected to the rear end of the supporting block, and a first bandage and a second bandage are fixedly connected to the outer walls of the two supporting rods. The first binding band and the second binding band are detachably connected through a hook-and-loop fastener, the flexible binding band can be limited through cooperation of the supporting block, the spring and the limiting ring, the flexible binding band is prevented from moving towards the head of the cattle, the binding band and the intelligent neck ring can be limited through the limiting device, and the possibility that the intelligent neck ring falls off is reduced; and the detection continuity of the intelligent neck ring is improved.

The utility model relates to the technical field of breeding equipment discloses a kind of dairy cattle concentrate layered mixing spiral stirring conveying devices, including multiple warehouses and stirring bin, multiple warehouse bottom is fixedly connected with support, the stirring bin bottom is fixedly connected with multiple support legs, the warehouse inside is equipped with rationing component, the stirring bin inside is provided with stirring component, the support side is equipped with auger conveying component;The rationing component includes rationing block, the rationing block rotation is connected in the warehouse inside, the warehouse side is equipped with motor two, the rationing block one end is fixedly connected in the motor two output, the rationing block surface is equipped with multiple rationing groove.The utility model in, through motor drive rationing block rotation, rationing groove periodicity receives the raw material of warehouse, by design multiple warehouse let raw material realize physical isolation type metering, reduce error, improve the precision of raw material mixing proportioning.

The invention provides an Internet of Things management system and method for a dairy farm, and is applied to the technical field of Internet of Things, and the system comprises a central control data platform which is used for collecting the original data of the dairy farm in real time through a sensing device installed on a safety and environmental protection device of the dairy farm. And the cloud control platform is used for performing unified analysis and processing on the original data to obtain management data of the dairy cattle farm. And the central control data platform is also used for managing the security and environmental protection equipment based on the data indexes in the management data. And the environmental protection archive platform is used for generating an environmental protection archive report of the cow farm based on the original data, the management data and the historical data of the cow farm stored in the environmental protection archive platform. The problems of high management difficulty and low safety and environmental protection management level caused by the lack of a unified supervision platform for centralized management and coordination in the current cow farm can be solved.

The invention discloses a dairy cow digestive tract and respiratory tract disease therapeutic agent based on compound probiotics and plant extracts, through the synergistic effect of multiple strains and the multiple effects of the plant extracts, the therapeutic effect is remarkably improved, and the use of antibiotics is reduced. The preparation has the advantages of greenness, safety, remarkable curative effect and the like, and is suitable for large-scale popularization and application.

The utility model provides a grinding device for dairy cow feed production, and belongs to the technical field of grinding devices.The grinding device for dairy cow feed production comprises a device body, limiting sliding holes are formed in the two side surfaces of the device body, and limiting sliding blocks are connected into the two limiting sliding holes in a sliding mode; the grinding box is fixedly connected to the close ends of the two limiting sliding blocks; the number of the rotating shafts is two, and the two rotating shafts are rotationally connected into the grinding box; the number of the grinding rollers is two, and the two grinding rollers are fixedly connected to the circumferential surfaces of the two rotating shafts correspondingly; by means of the device, the vibration assembly indirectly drives the grinding box to vibrate in a reciprocating mode, under vibration of the grinding box, small-block-shaped dairy cow feed accumulated in the grinding box falls off and is ground into powder through the grinding rollers, the environment in the grinding box is kept clean, the feed accumulated in the previous grinding process cannot fall into the feed of the next grinding process, and pollution to the interior of the feed is avoided.

The utility model relates to the technical field of dairy cow breeding, in particular to an automatic feeding device for dairy cow breeding, which is provided with a frame structure with a movable outer part, so that the feeding device is assisted to freely move and can be conveniently moved to a corresponding position for respective feeding, discharging and other operations, and the applicability is improved; comprising a material barrel, a concentration hopper, a discharge port, a hinge, a barrel cover, a connecting frame, a frame, an axle, large wheels, a handle rod and a supporting frame, the bottom end of the material barrel is communicated with the top end of the concentration hopper, the bottom end of the concentration hopper is communicated with the discharge port, and the middle rear side of the top end of the material barrel is movably connected with the middle of the front side end of the barrel cover through the hinge; a set of axles are rotationally arranged on the inner side of the lower portion of the vehicle frame, the left end and the right end of each axle are connected with the middle of the inner end of a set of large wheels, the two ends of the rear side in the vehicle frame are connected with the left end and the right end of a handle rod, and the bottom end of the rear side of the vehicle frame is connected with the top ends of two sets of supporting frames. And a feeding mechanism is arranged in the material barrel.

The invention belongs to the technical field of biology, and discloses a plateau dairy cow liquid phase breeding chip and application thereof, and detection objects of the liquid phase chip comprise 75939 SNP sites positioned on a common cow reference genome AR-UCD 1.2. The liquid chip provided by the invention can ensure comprehensive coverage and genetic information representativeness of bovine genomes, and provides a reliable basis for subsequent molecular identification, population structure analysis and molecular breeding application. The gene not only has population genetic polymorphism, but also covers a gene functional region and a non-functional region. Practicality and representativeness of the chip are guaranteed, stability and functional correlation of genetic markers can be considered, and a reliable tool is provided for molecular breeding and genetic improvement.

The invention discloses an efficient SNP marker automatic screening system for dairy cow breeding, relates to the technical field of dairy cow breeding screening, and aims to solve the problems that the scientificity and stability of a screening result are reduced, and the error between genetic improvement efficiency and marker utilization rate is increased. The method comprises the following steps: extracting dairy cow breeding character information and gene site data from a genotype-phenotype database, calculating heritability of each character, screening target characters with high genetic contribution degree, calculating character action characteristics and effect directions of gene sites on the basis of an association relationship between the target characters and SNP sites, quantitatively describing regulation intensity of the gene sites, and screening out the target characters with high genetic contribution degree. Generating a character guiding coefficient according to the character guiding coefficient, screening significant candidate sites in combination with a threshold value, performing cross-character frequency statistics on the candidate sites, calculating a breeding efficiency index in combination with a character correlation weight, and performing hierarchical marking according to the index, so as to realize multi-character comprehensive genetic effect evaluation and automatic screening. The breeding data processing efficiency and the gene selection scientificity are improved.

The utility model provides a kind of anti-freezing type dairy cow drinking trough, belong to dairy cattle breeding technical field, including base, the top of base is equipped with mounting groove, further include: annular water tank, annular water tank is installed in the top of base;Rotary unit, rotary unit is installed in mounting groove;Partition, partition is symmetrically installed in the working end of rotary unit, the bottom outer wall of partition is attached with the groove wall of annular water tank, the inner cavity of partition is divided into drinking water area and cleaning area;Discharge pipe, drainage groove is equipped in the inner side wall of the cleaning section of annular water tank, discharge pipe is installed in drainage groove groove wall;Protective half shell, protective half shell is installed in the top of annular water tank, protective half shell is set around the cleaning area of annular water tank.The utility model is through electric heating, heat preservation, automatic cleaning and automation control etc. design, guarantee winter drinking water not to freeze, water quality is clean, improve breeding efficiency and dairy cow health, structure is reasonable durable.

The utility model relates to the technical field of grass kneading machines, in particular to grass kneading equipment for cow breeding, which comprises a grass kneading machine body and further comprises a discharge hopper fixedly communicated with the grass kneading machine body; the collecting mechanism is arranged on the grass kneading machine body and comprises a base, the base is fixedly connected to the grass kneading machine body, through cooperation of a supporting frame, a limiting rod, a spring, a pressing plate, a positioning nail and the like, four corners of a bag can be conveniently fixed, the bag can be conveniently supported and opened, and grass discharged by a discharging hopper on the grass kneading machine body is conveniently collected; after the two pockets are fixed in sequence, the threaded shaft is driven by the motor to rotate, so that the threaded shaft can conveniently drive the moving plate to move, the moving plate can conveniently drive the two pockets to move, the full pockets can be conveniently moved away, the pockets without the forage can be conveniently moved to the position below the discharging hopper, and people can conveniently fix the pockets in advance; uninterrupted forage collection is facilitated, manpower is saved, and practicability is improved.

The utility model is applicable to the technical field of animal husbandry devices, and provides a hopper cleaning device for cow breeding, which comprises a movable base, a lifting component is mounted at the top of the movable base, a second motor is mounted at the lifting end of the lifting component, and the output shaft end of the second motor is connected with a rotating rod. The side wall of the rotating rod is connected with a cleaning assembly through a connecting assembly. The cleaning assembly comprises a first cleaning rod and a second cleaning rod, the first cleaning rod and the second cleaning rod are rotationally connected, and first cleaning cotton and second cleaning cotton are bonded to the outer wall of the first cleaning rod and the outer wall of the second cleaning rod correspondingly. The first cleaning rod and the second cleaning rod are rotationally connected, the connecting angle between the first cleaning rod and the second cleaning rod can be adjusted through the second bolt and the nut, the hopper body with the bottom in plane design can be attached when the right angle is formed, the hopper body with the bottom in funnel-shaped design can be attached when the obtuse angle is formed, and the practicability of the device is improved.

This invention belongs to the field of dairy cow performance measurement and dairy cow greenhouse gas emission monitoring, specifically disclosing a predictive model and application for carbon emissions from the nose of dairy cows. Regarding the selection of characteristic bands, it breaks away from the commonly used method of selecting characteristic bands using algorithms, instead employing a method of manual selection and multiple iterations. In particular, it confirms that incorporating water absorption and near-infrared regions, which are discarded in conventional milk component analysis modeling, can improve model performance. Ultimately, the characteristic bands for predicting Holstein dairy cow nose carbon emissions (carbon dioxide emission equivalent) were selected. The optimal preprocessing and algorithm combination corresponding to the selection of the optimal model for predicting Holstein dairy cow nose carbon emissions (carbon dioxide emission equivalent) was determined, the optimal parameters were identified, and the accuracy of the model was improved.

The utility model discloses a feed putting device for dairy cow breeding, which relates to the technical field of dairy cow breeding and comprises a supporting plate, a supporting frame is arranged at the top of the supporting plate, a stirring box is fixedly mounted in the supporting frame, and a discharging box is fixedly mounted at the bottom of the stirring box. An electric material guide rod is rotatably connected to the interior of the discharging box, a connecting plate is fixedly mounted at the top of the interior of the stirring box, a mounting motor is fixedly mounted in the middle of the top of the connecting plate, and a stirring blade is fixedly mounted at the output end of the mounting motor; according to the feed putting device for dairy cow breeding, the stirring box is supported through the supporting frame, feed is put into the crushing box, the feed is guided through the guide plate and then crushed through the crushing box, the crushed feed is guided through the guide cover and then fed into the stirring box, and through operation of a motor installed at the top of a connecting plate, the feed is fed into the stirring box; the stirring blades are driven to rotate, so that the feed in the stirring box is cut and stirred.

The invention discloses application of a cattle ATG5 gene 5'end disease resistance related SNP molecular marker, and belongs to the technical field of molecular marker assisted breeding. One SNP site g.T-144C related to mastitis resistance is found on the ATG5 gene of the Chinese Holstein dairy cow, and the SNP site g.T-144C is located at the 5'end of the ATG5 gene of the No.9 chromosome of the Chinese Holstein dairy cow. Through a dual-luciferase report experiment and correlation analysis of the SNP molecular marker and the staphylococcus aureus mastitis resistance of dairy cattle, direct correlation between the ATG5 gene g.T-144C site and the staphylococcus aureus mastitis resistance is disclosed and verified, and a reliable molecular target is provided for breeding for disease resistance. Therefore, the invention provides an effective molecular marker for molecular-assisted selection and disease-resistant breeding of cow mastitis resistance.

The invention discloses a model building method based on animal endometrial epithelium organoid and application of the model building method, and relates to the technical field of cell engineering and organoid. According to the method, healthy cow endometrial tissue serves as a raw material, a model is built through the steps of pretreatment, enzymolysis, cell cleaning and screening, seed gum culture, passage, cryopreservation resuscitation and the like, and the model is built through Hamp; e, verifying morphological integrity through dyeing, and detecting E-cadherin expression through IHC dyeing to confirm cell specificity. The animal organ model restores the in-vivo three-dimensional microenvironment and species specificity, overcomes the limitation of traditional two-dimensional culture and mouse models, can accurately simulate the pathological process of endometritis, is applied to research on the pathogenesis of endometritis of dairy cows, can also efficiently screen anti-inflammatory drugs and evaluate the drug effect, and has a wide application prospect. A reliable in-vitro tool is provided for disease prevention and treatment, and healthy development of the dairy cow breeding industry is assisted.

The invention provides a safety and environmental protection management system and method for a dairy farm, and is applied to the technical field of safety and environmental protection, and the system comprises a cloud management module which is used for collecting environment parameters and resource use data of the dairy farm in real time, processing the environment parameters and the resource use data, and generating visual data of the dairy farm. And the form module is used for responding to a form generation demand of a user, and analyzing target data in the environment parameters and the resource use data to obtain chart data. And the manure returning module is used for collecting geographic information of at least one type of land parcel in the cow farm by using a geographic information system, generating an optimal distribution strategy of manure outward transportation and returning of the cow farm, and displaying the optimal distribution strategy. And obvious defects exist in the aspects of safety production, environmental protection and data acquisition and analysis.

The invention discloses a cow improved variety gene rapid screening and propagation method, and relates to the technical field of cow improved variety rapid propagation, the cow improved variety gene rapid screening and propagation method comprises the following operation steps: S1, sample collection; s2, screening improved variety genes; s3, carrying out primary propagation; s4, index determination; s5, evaluating genetic quality; and S6, result evaluation and propagation application. According to the rapid screening and propagation method for the improved variety genes of the dairy cows, after genetic quality evaluation, selection and propagation of the dairy cows of the next generation can be conveniently carried out according to the genetic quality evaluation result, the genetic quality of the dairy cows is comprehensively and accurately evaluated, the breeding process is more scientific and efficient, excellent breeding bulls and breeding cows can be found in time, and the breeding efficiency of the dairy cows is improved. Powerful decision support is provided for rapid propagation of improved variety genes, so that individuals with excellent gene combinations can be accurately screened out, the breeding period is greatly shortened, the selection accuracy is improved, and the production benefit and the economic benefit of cow breeding are further improved.

Provided is a milking robot for dairy cattle, equipped with milking equipment, a robotic arm for attaching the milking equipment, a detection device for determining teat positions, and a control system. The detection device comprises a primary source for emitting broadband light, specifically white light, within a solid angle, and an optical camera for capturing images using the emitted light. The control system is designed to control the emission behavior of said broadband light depending on a criterion, which at least entails that the control system increases the light intensity emitted by the primary source—at least within a part of said solid angle—only at a predetermined minimum ambient light intensity. This prevents the dairy cattle from being disturbed by flashing light in dark conditions.On the other hand, the extra light results in more reliable images if the environment itself is already (somewhat) bright, and the animals are therefore no longer disturbed by it.

The application discloses intelligent feeding equipment for cow breeding and relates to the field of cow breeding.The intelligent feeding equipment comprises a supporting seat, the surface of the supporting seat is provided with a control screen, a storage barrel is fixedly installed on the top of the supporting seat, a motor one arranged on the top of a top cover drives a transmission wheel one to rotate, the transmission of a transmission belt enables a connecting rod connected with a transmission wheel two to rotate synchronously, thereby driving a sealing disc connected with the bottom end of the connecting rod to rotate correspondingly, in the rotating process of the sealing disc, a feed passage arranged on the surface of the sealing disc can coincide with a through hole arranged on the bottom of the storage barrel, intermittent rotation of the sealing disc is realized, the sealing disc rotates to seal the through hole on the bottom of the storage barrel, i.e., the discharging is stopped, the device has the function of automatically feeding according to the required amount of concentrate, manual intervention of an operator is not needed, the process of feeding is simplified, and the practicability of the device is improved.

The invention relates to an SV liquid phase chip for Holstein dairy cattle and Frevivh dairy cattle and application of the SV liquid phase chip for Holstein dairy cattle and Frevivh dairy cattle. The SV molecular marker combination provided by the invention comprises an SV site as shown in a table 4. The chip provided by the invention is related to cow milk production traits, milk component traits, breeding traits and melatonin traits and cow variety identification. The whole genome breeding SV chip is constructed by using the molecular marker combination and is used for molecular breeding of cattle.