An automated boar semen collection apparatus and system

Abstract

The application relates to an automatic boar semen collection device and system, which comprises a sow prosthesis, a bionic vagina, a sound simulation device, a cleaning device, a semen collection device and a control device. The bionic vagina is arranged at the tail of the sow prosthesis, and the tail end of the bionic vagina extends into a cavity. The sound simulation device is arranged at the head of the sow prosthesis and is used for simulating the sound generated by the sow during estrus. The cleaning device is arranged at the tail of the sow prosthesis and is used for flushing the penis of the boar. The semen collection device is arranged in the cavity and is used for collecting the semen flowing out of the tail end of the bionic vagina. The control device is in communication connection with the bionic vagina, the sound simulation device, the cleaning device and the semen collection device. The device has the advantages that the real vaginal environment of the sow can be simulated through the bionic vagina, the difficulty of the whole semen collection process can be reduced, and the semen in the initial ejaculation stage and the semen in the middle and later ejaculation stages of the boar can be collected separately, so that the quality of the semen collection is improved.

Description

Technical Field

[0001] This invention relates to the field of livestock equipment technology, and in particular to an automated semen collection device and system for breeding pigs. Background Technology

[0002] In the pig farming industry, the role of boars is indispensable. The quality of boar semen directly affects the farrowing rate, litter size, and health of piglets. Furthermore, with the development of the farming industry, artificial semen collection and artificial insemination of boars have become effective means for large-scale farms to improve production efficiency.

[0003] In existing technologies, the specific steps for collecting boar semen are as follows: Boars are induced to mount a dummy sow by taking advantage of their poor eyesight, and the semen is collected by hand. While this method is simple, hygienic, and inexpensive, it neglects the boar's comfort during the collection process. Furthermore, existing dummy sows are overly simplistic, consisting entirely of metal components covered with a non-slip, wear-resistant material. They require induction using secretions or urine from the sow's reproductive tract during estrus, and their overall structure deviates significantly from the sow's appearance and is not designed according to the sow's reproductive organ structure. This design can lead to boars not mounting the dummy sow for extended periods during collection and training, or changes in collection methods due to the collector's inexperience or changes in technique, causing damage to the boar's reproductive organs. This can lead to boar dissatisfaction, aggression, and frequent incidents of boar attacks. Because the boar's physiological needs are not met, its libido declines, and it stops mounting the dummy sow. This situation not only shortens the lifespan of boars but also leads to an increase in boar culling rates and corresponding feeding costs.

[0004] Furthermore, existing technologies also involve fixing the semen collection device to the tail of the sow's prosthesis. This device simulates the sow's vaginal environment to stimulate the boar's libido. The sow's prosthesis also has a thermos cup for collecting semen flowing from the collection device. While this eliminates the need for manual intervention during semen collection and reduces the labor intensity of the collectors, the initial semen ejaculated by the boar contains not only a large amount of useless gelatinous material but may also be mixed with urine, impurities, bacteria, and other substances. This compromises the quality of the collected semen, increasing the difficulty of semen analysis. If this semen is used for artificial insemination of sows, it can lead to the culling of sows due to reproductive disorders such as endometritis, increasing the culling rate and corresponding feeding costs.

[0005] Existing technologies also disclose automatic semen collection devices. Semen collectors stand on one or both sides of the device. The device has a variable-access fence and a sow prosthesis. Below the sow prosthesis are a device for fixing the artificial vagina and a support for fixing the semen collection cup. In actual operation, the semen collector needs to wear double gloves and stimulate the sow's penis to become erect and ejaculate. During ejaculation, the collector discards the semen at the beginning of ejaculation and collects the remaining semen. Although this device can distinguish and collect semen from the initial and later stages of ejaculation, it still suffers from problems such as complex operation, high manpower consumption, and high cost.

[0006] Currently, no effective solutions have been proposed for the problems existing in related technologies, such as the complexity of the boar semen collection process, the low quality of the collected semen, the lack of guarantee for personnel safety, the high labor intensity, and animal welfare. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated equipment and system for collecting semen from breeding pigs, thereby solving problems such as complex semen collection procedures, high labor intensity, and low quality of collected semen.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] In a first aspect, the present invention provides an automated boar semen collection device, comprising:

[0010] A sow prosthesis, wherein the sow prosthesis has a cavity;

[0011] A bionic vagina is provided at the tail of the sow prosthesis, with the end of the bionic vagina extending into the cavity;

[0012] A sound simulation device is installed in the head of the sow prosthesis to simulate the sounds that occur when a sow is in estrus.

[0013] A cleaning device, installed at the tail of the sow prosthesis, is used to rinse the penis of the breeding sow;

[0014] A semen collection device, disposed within the cavity, is used to collect semen flowing from the end of the bionic vagina;

[0015] The control device is communicatively connected to the bionic vagina, the sound simulation device, the cleaning device, and the semen collection device, respectively.

[0016] In some embodiments, the bionic vagina includes:

[0017] The outer cylinder, the outer wall of which is connected to the sow prosthesis;

[0018] The inner cylinder is slidably connected to the outer cylinder, and the inner cylinder can reciprocate within the outer cylinder, with the end of the inner tube extending into the cavity.

[0019] A vaginal-like body is arranged around the inner wall of the inner cylinder;

[0020] A first driving component is disposed between the outer cylinder and the inner cylinder and is communicatively connected to the control device, for driving the inner cylinder to reciprocate and simulating the internal pressure of a sow's vagina.

[0021] In some embodiments, the bionic vagina further includes:

[0022] A thermostat is disposed between the inner wall of the inner cylinder and the simulated vagina body, and is communicatively connected to the control device to simulate the temperature of a sow's vagina.

[0023] In some embodiments, the bionic vagina further includes:

[0024] A humidifier is disposed between the outer cylinder and the inner cylinder and is communicatively connected to the control device. The humidifier is connected to the holes in the inner wall of the simulated vagina through a pipe to simulate the lubrication of a sow's vagina.

[0025] In some embodiments, the bionic vagina further includes:

[0026] An infrared sensor is installed at the vaginal opening of the bionic vagina and connected to the control device. It is used to generate an infrared signal when the penis of the breeding pig enters the bionic vagina and transmit the infrared signal to the control device.

[0027] In some embodiments, the first driving component includes:

[0028] A connector that slidably connects the outer cylinder and the inner cylinder;

[0029] The first driving component is connected to the outer cylinder;

[0030] A first transmission component is connected between the first driving component and the inner cylinder, and is used to transmit the power of the first driving component to the inner cylinder, so that the inner cylinder reciprocates.

[0031] In some embodiments, the cleaning apparatus includes:

[0032] A water tank is located on the underside of the sow prosthesis;

[0033] A water pump is installed on the water tank and connected to the water tank via a pipe;

[0034] A nozzle is located at the tail of the sow prosthesis and is connected to the water pump via a pipe.

[0035] In some embodiments, the cleaning apparatus further includes:

[0036] A pressure sensor is installed on the back of the sow prosthesis and connected to the control device. It is used to generate a pressure signal when the boar climbs onto the sow prosthesis and transmit the pressure signal to the control device.

[0037] In some embodiments, the semen collection device includes:

[0038] A loading platform is disposed within the cavity and is slidably connected to the inner bottom wall of the cavity.

[0039] The first slot is set on the loading platform for installing a waste liquid tank, which is used to collect semen from the early stage of ejaculation in the breeding pig.

[0040] The second slot is set on the loading platform and is used to install a liquid storage tank, which is used to collect semen from the middle and late stages of ejaculation in breeding pigs.

[0041] The second driving component is disposed between the inner bottom wall of the cavity and the loading platform and is connected to the control device. It is used to drive the loading platform to reciprocate so that the first card holder and the second card holder switch at the positions corresponding to the end of the bionic vagina.

[0042] A weight sensor, installed on the first card holder and connected to the control device, is used to generate a weight signal and transmit it to the control device when the weight of the waste liquid tank on the first card holder reaches a preset weight threshold.

[0043] In some embodiments, the second drive component includes:

[0044] A sliding element is connected to the bottom of the loading platform;

[0045] A second driving component is disposed within the cavity;

[0046] The second transmission component is connected between the second drive component and the loading platform, and is used to transmit the power of the second drive component to the loading platform, so that the loading platform reciprocates within the cavity via the sliding component.

[0047] In some embodiments, the control device includes:

[0048] The communication sensors are respectively connected to the pressure sensor of the cleaning device, the infrared sensor of the bionic vagina, and the weight sensor of the semen collection device;

[0049] The controller is connected to the communication sensor, the sound simulation device, the cleaning device, and the semen collection device, respectively. It is used to acquire the infrared signal transmitted by the infrared sensor and control the bionic vagina according to the infrared information; it is also used to acquire the pressure signal transmitted by the pressure sensor and control the cleaning device according to the pressure signal; and it is also used to acquire the weight signal transmitted by the weight sensor and control the semen collection device according to the weight signal.

[0050] Secondly, the present invention also provides an automated semen collection system for breeding pigs, comprising:

[0051] Semen collection column;

[0052] The automated semen collection equipment for breeding pigs described above is installed inside the semen collection pen;

[0053] Waste liquid tank, installed in the semen collection device of the automated boar semen collection equipment, is used to collect semen from the boar during the initial ejaculation stage;

[0054] A storage tank is installed in the semen collection device of the automated boar semen collection equipment for collecting semen from boars during the mid-to-late stages of ejaculation.

[0055] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0056] (1) By simulating the real environment of the sow's vagina through a bionic vagina, the breeding pig can simulate the real mating environment as much as possible during the semen collection process, reduce the discomfort of the breeding pig during the semen collection process, and generate sufficient stimulation for the breeding pig, thereby reducing the training time for boar semen collection, reducing the overall operational difficulty of the semen collection process, and reducing the labor intensity of the semen collection personnel.

[0057] (2) The penis of the breeding pig was cleaned in advance by a cleaning device, which ensured that the entire semen collection process met hygiene standards.

[0058] (3) Semen from the early stage of ejaculation of breeding pigs and semen from the middle and late stages of ejaculation of breeding pigs should be collected separately. Since the semen ejaculated by breeding pigs in the early stage may contain substances such as urine, separate collection can ensure that the quality of the collected semen is high and improve the success rate of subsequent mating. Attached Figure Description

[0059] Figure 1 This is a schematic diagram (I) of an automated boar semen collection device according to an embodiment of the present invention;

[0060] Figure 2 This is a schematic diagram of the structure of a sow prosthesis according to an embodiment of the present invention;

[0061] Figure 3This is a schematic diagram of the external structure of a bionic vagina according to an embodiment of the present invention;

[0062] Figure 4 This is a schematic diagram of the internal structure of a bionic vagina according to an embodiment of the present invention;

[0063] Figure 5 This is a schematic diagram (II) of the structure of an automated boar semen collection device according to an embodiment of the present invention;

[0064] Figure 6 This is a schematic diagram of the structure of a cleaning device according to an embodiment of the present invention;

[0065] Figure 7 This is an enlarged view of part A in the diagram, mainly showing the structure of the semen collection device;

[0066] Figure 8 This is a schematic diagram of the structure of the first and second card holders in the semen collection device according to an embodiment of the present invention;

[0067] Figure 9 This is a schematic diagram of the structure of a control device according to an embodiment of the present invention;

[0068] Figure 10 This is a frame diagram of an automated boar semen collection device according to an embodiment of the present invention;

[0069] Figure 11 This is a schematic diagram of the structure of an automated boar semen collection system according to an embodiment of the present invention;

[0070] Figure 12 This is a schematic diagram of the structure of the semen collection pen in the automated semen collection system for breeding pigs according to an embodiment of the present invention;

[0071] Figure 13 This is a schematic diagram of the waste liquid tank and storage tank in an automated boar semen collection system according to an embodiment of the present invention.

[0072] The attached diagrams are labeled as follows: 100, sow prosthesis; 110, fixed leg; 120, pedal; 130, cavity; 140, cover plate;

[0073] 200. Bionic vagina; 210. Outer cylinder; 220. Inner cylinder; 230. Bionic vaginal body; 240. First driving component; 241. Connector; 242. First driving component; 243. First transmission component; 243a. First gear; 243b. First rack; 243c. First limiting block; 250. Flexible tube; 260. Connecting tube; 270. Thermostatic component; 280. Humidifying component; 281. Liquid storage tank; 282. Pump body; 283. Infusion tube; 290. Infrared sensor;

[0074] 300. Sound simulation device;

[0075] 400. Cleaning device; 410. Water tank; 420. Water pump; 430. Nozzle; 440. Pressure sensor;

[0076] 500, Semen collection device; 510, Loading platform; 511, Slide groove; 520, First retainer; 521, First elastic element; 530, Second retainer; 531, Second elastic element; 540, Second driving component; 541, Sliding element; 542, Second driving component; 543, Second transmission component; 543a, Second gear; 543b, Second rack; 543c, Second limiting block; 550, Weight sensor;

[0077] 600. Control device; 610. Communication sensor; 620. Controller; 630. Power supply; 640. Display; 650. Control button;

[0078] 700. Semen Collection Area; 710. Entrance; 720. Exit; 730. Side Entrance;

[0079] 800. Waste liquid tank;

[0080] 900. Storage tank. Detailed Implementation

[0081] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0082] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0083] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0084] Example 1

[0085] An illustrative embodiment of the present invention, such as Figure 1As shown, an automated boar semen collection device includes a sow prosthesis 100, a bionic vagina 200, a sound simulation device 300, a cleaning device 400, a semen collection device 500, and a control device 600. The sow prosthesis 100 has a cavity 130; the bionic vagina 200 is located at the tail of the sow prosthesis 100, with its end extending into the cavity 130; the sound simulation device 300 is located at the head of the sow prosthesis 100 to simulate the sounds produced when a sow is in estrus; the cleaning device 400 is installed at the tail of the sow prosthesis 100 to rinse the boar's penis; the semen collection device 500 is located within the cavity 130 to collect semen flowing from the end of the bionic vagina 200; and the control device 600 is communicatively connected to the bionic vagina 200, the sound simulation device 300, the cleaning device 400, and the semen collection device 500.

[0086] like Figure 2 As shown, the sow prosthesis 100 includes fixed feet 110 and footrests 120. The fixed feet 110 are located on the sow prosthesis 100 at positions corresponding to the four limbs of the sow prosthesis 100, and can be fixed to the floor of the semen collection room with bolts; the footrests 120 are located on both sides of the sow prosthesis 100, and when the breeding sow climbs onto the sow prosthesis 100, its forelimbs can step on the footrests 120.

[0087] Specifically, four fixing feet 110 are provided on the sow prosthesis 100, and the four fixing feet 110 correspond to the four limbs of the sow prosthesis 100 respectively. The four fixing feet 110 can ensure the stability of the sow prosthesis 100 installation.

[0088] Specifically, there are two pedals 120 on the sow prosthesis 100, and the two pedals 120 are located on opposite sides of the sow prosthesis 100 and correspond one-to-one with the two forelimbs of the sow prosthesis 100.

[0089] It should be noted that the sow prosthesis 100 is made to mimic the shape of a sow, and the surface of the sow prosthesis 100 is coated with rubber paint or epoxy resin coating, so that the shape and structure of the sow prosthesis 100 are more adapted to the physiological needs of boars and reduce stress response during semen collection.

[0090] In some embodiments, the sow prosthesis 100 also includes a cover plate 140. The cover plate 140 is hinged to the side of the sow prosthesis 100 and corresponds to a cavity 130 on the sow prosthesis 100, for opening or closing the cavity 130.

[0091] like Figure 3 and Figure 4As shown, the bionic vagina 200 includes an outer cylinder 210, an inner cylinder 220, a prosthetic vagina body 230, and a first driving component 240. The outer cylinder 210 is connected to the sow prosthesis 100; the inner cylinder 220 is slidably connected to the outer cylinder 210 and can reciprocate within the outer cylinder 210; the prosthetic vagina body 230 is disposed around the inner wall of the inner cylinder 220; the first driving component 240 is disposed between the outer cylinder 210 and the inner cylinder 220 and is communicatively connected to the control device 600, used to drive the inner cylinder 220 to reciprocate and simulate the internal pressure of the sow's vagina.

[0092] Specifically, the sow prosthesis 100 has a hole at its tail end that can accommodate the bionic vagina 200. Furthermore, the outer tube 210 can be placed inside the hole, and the side wall of the outer tube 210 is connected to the inner side wall of the hole in the sow prosthesis 100 to fix the bionic vagina 200.

[0093] Specifically, the inner cylinder 220 is slidably connected to the outer cylinder 210 through the first driving component 240 and is coaxially arranged with the outer cylinder 210.

[0094] Furthermore, in order to ensure the stability of the sliding connection between the inner cylinder 220 and the outer cylinder 210, the two ends of the inner cylinder 220 are respectively connected to the two ends of the outer cylinder 210 through hoses 250, and the hoses 250 can extend and retract as the inner cylinder 220 slides.

[0095] Furthermore, the length of the outer cylinder 210 is greater than the length of the inner cylinder 220, and the inner diameter of the outer cylinder 210 is greater than the outer diameter of the inner cylinder 220. Specifically, the length of the outer cylinder 210 is 180mm, and the inner diameter of the outer cylinder 210 is 30mm; the length of the inner cylinder 220 is 140mm, and the inner diameter of the inner cylinder 220 is 20mm. It should be noted that the outer cylinder 210 extends outward from the mounting position of the first driving component 240 to provide installation space for the first driving component 240.

[0096] In some embodiments, the length of the outer cylinder 210 may be 160mm, 200mm, etc., and the inner diameter of the outer cylinder 210 may be 28mm, 32mm, etc. The length of the inner cylinder 220 may be 130mm, 150mm, etc. It should be noted that the length of a sow's cervix is ​​generally between 100mm and 180mm, and the diameter is generally between 15mm and 30mm. Therefore, the dimensions of the outer cylinder 210 and the inner cylinder 220 can be selected according to the length and diameter of the sow's cervix and the actual usage scenario, without imposing too many restrictions here.

[0097] Furthermore, the outer cylinder 210 has a contact ring at the vaginal opening, and the inner cylinder 220 has a buffer ring at the end near the vaginal opening. Both the contact ring and the buffer ring are made of flexible material. The design of the contact ring and the buffer ring makes the bionic vagina 200 relatively soft when in contact with the boar's penis, while reducing the impact on the boar's body that may be caused by reciprocating movements, thus facilitating the semen collection process.

[0098] The simulated vaginal body 230 is attached to the inner wall of the inner tube 220 and completely covers the inner wall of the inner tube 220.

[0099] Furthermore, the diameter of the prosthetic vagina body 230 near the vaginal opening is relatively large. As the prosthetic vagina body 230 extends away from the vaginal opening along the length of the inner cylinder 220, the diameter of the prosthetic vagina body 230 gradually decreases, so that the prosthetic vagina body 230 forms a gradually contracting prosthetic sow vagina-like channel within the inner cylinder 220.

[0100] Specifically, the inner surface of the bionic vagina 230 has several folds, which can increase the stimulation of the boar's penis by the bionic vagina 200, enabling the boar to ejaculate quickly and in large quantities.

[0101] It should be noted that in this embodiment, the bionic vagina 200 is made of silicone.

[0102] In some embodiments, the bionic vagina 200 may also be made of TPE material (thermoplastic elastomer) or the like.

[0103] In some embodiments, the bionic vagina 200 also includes a connecting tube 260. A first end of the connecting tube 260 is connected to the end of the bionic vagina 200, and a second end of the connecting tube 260 extends into a cavity 130 within the sow prosthesis 100.

[0104] Specifically, the first end of the connecting pipe 260 is connected to the end of the inner cylinder 220.

[0105] It should be noted that the first end of the connecting tube 260 is detachably connected to the end of the bionic vagina 200, and the semen collection personnel can replace the connecting tube 260 to ensure the hygiene standards of the semen collection operation.

[0106] In some embodiments, the connecting pipe 260 includes, but is not limited to, a universal flexible hose.

[0107] In some embodiments, the first driving component 240 includes a connector 241, a first driving component 242, and a first transmission component 243. The connector 241 slidably connects the outer cylinder 210 and the inner cylinder 220; the first driving component 242 is connected to the outer cylinder 210; and the first transmission component 243 is connected between the first driving component 242 and the inner cylinder 220, for transmitting power from the first driving component 242 to the inner cylinder 220, causing the inner cylinder 220 to reciprocate.

[0108] Specifically, there are two connectors 241. The two connectors 241 are located at the end of the bionic vagina 200 away from the vaginal opening, and the two connectors 241 are arranged opposite to each other between the inner cylinder 220 and the outer cylinder 210. The first end of each connector 241 is connected to the end of the outer cylinder 210 away from the vaginal opening, and the second end of each connector 241 is connected to the end of the inner cylinder 220 away from the vaginal opening. The connectors 241 can extend and retract with the reciprocating movement of the inner cylinder 220.

[0109] In some of these embodiments, the connector 241 includes, but is not limited to, a telescopic rod.

[0110] Specifically, the first driving component 242 is fixed to the inner wall of the outer cylinder 210 by means of welding, bolting, riveting or bonding, and the output shaft of the first driving component 242 is connected to the first transmission component 243.

[0111] In some of these embodiments, the first drive element 242 includes, but is not limited to, a drive motor.

[0112] Specifically, the first transmission component 243 includes a first gear 243a and a first rack 243b. The first gear 243a is coaxially fixed to the output shaft of the first drive component 242; the first rack 243b is fixed to the outer wall of the inner cylinder 220 by welding, bolting, riveting, or bonding, and the first gear 243a and the first rack 243b mesh with each other.

[0113] Furthermore, the first transmission component 243 also includes a first limiting block 243c, which is integrally formed at both ends of the first rack 243b to limit the stroke of the inner cylinder 220 in reciprocating motion, ensuring that the reciprocating motion of the inner cylinder 220 in the outer cylinder 210 can be carried out stably.

[0114] In actual operation, the first driving component 242 drives its output shaft to rotate clockwise or counterclockwise, thereby causing the first gear 243a to rotate clockwise or counterclockwise. When the toothed section on the first rack 243b contacts the first gear 243a, the meshing action drives the first rack 243b to reciprocate, thus causing the inner cylinder 220 to reciprocate within the outer cylinder 210. It should be noted that the reciprocating speed of the inner cylinder 220 should not be too fast or too slow. Too fast a speed will cause discomfort to the breeding pigs and affect the semen collection efficiency, while too slow a speed will not provide sufficient stimulation to the breeding pigs' penises, leading to an increase in the semen collection time. Therefore, the reciprocating speed of the inner cylinder 220 can be set according to the actual mating process of the breeding pigs.

[0115] In some embodiments, the bionic vagina 200 also includes a thermostat 270. The thermostat 270 is disposed between the inner wall of the inner cylinder 220 and the bionic vagina body 230, and is communicatively connected to the control device 600 to simulate the temperature of a sow's vagina.

[0116] Specifically, the thermostatic element 270 generates heat itself and transfers the heat to the prosthetic vagina body 230, maintaining the temperature of the prosthetic vagina body 230 between 38.0 and 38.7°C. This makes the environment inside the prosthetic vagina 200 more like the real vaginal environment of a sow, thereby increasing the stimulation of the sow's penis by the prosthetic vagina 200.

[0117] In some embodiments, the thermostat 270 includes, but is not limited to, heating wires and dry thermostats.

[0118] In some embodiments, the bionic vagina 200 also includes a humidifier 280. The humidifier 280 is disposed between the inner cylinder 220 and the bionic vagina body 230 and is communicatively connected to the control device 600. The humidifier 280 communicates with the holes in the inner wall of the bionic vagina body 230 through a pipe to simulate the lubrication of a sow's vagina.

[0119] Specifically, the humidifier 280 includes a liquid storage tank 281, a pump body 282, and an infusion tube 283. The liquid storage tank 281 is disposed within the cavity 130 and has an inlet for adding liquid. The pump body 282 is mounted on the liquid storage tank 281 by welding, threaded connection, riveting, or bonding, and is connected to the liquid storage tank 281 via a pipe. The infusion tube 283 is disposed between the outer cylinder 210 and the inner cylinder 220, with its first end connected to the pump body 282 and its second end communicating with a hole in the inner wall of the simulated vagina body 230, with the connection point between the second end of the infusion tube 283 and the simulated vagina body 230 located in the middle of the simulated vagina body 230. It should be noted that a through hole is provided in the inner cylinder 220 for the infusion tube 283 to pass through, facilitating its installation.

[0120] Furthermore, the dosage of lubricant delivered by the humidifier 280 into the bionic vagina 230 can be controlled by the operating time of the pump 282. For example, whenever the pig's penis enters the bionic vagina 200, the control device 600 controls the pump 282 to run for 10 seconds, thereby delivering 10 ml of lubricant into the bionic vagina 200. It should be noted that the lubricant is prepared by dissolving pig semen diluent powder in 500 / 1000 ml of sterile distilled water at 32–38°C.

[0121] In some embodiments, lubricant can be applied directly to the biomimetic vagina 230 to ensure that the lubrication within the biomimetic vagina 200 approximates the environment of a real sow's vagina.

[0122] In some embodiments, the bionic vagina 200 also includes an infrared sensor 290. The infrared sensor 290 is disposed at the vaginal opening of the bionic vagina 200 and connected to the control device 600, for generating an infrared signal when the penis of the breeding pig enters the bionic vagina 200, and transmitting the infrared signal to the control device 600.

[0123] Specifically, the control device 600 controls the first drive component 240, the constant temperature component 270, and the humidifier 280 to start synchronously based on the infrared signal transmitted by the infrared sensor 290. This makes the internal environment of the bionic vagina 200 as close as possible to the real vaginal environment of a sow, so that the boar's penis is fully stimulated by simulated mating in the inner tube 220. This prompts the boar to ejaculate a large amount of semen in a short time under the effect of sufficient and strong stimulation, which shortens the collection time and avoids the situation of insufficient stimulation leading to a small amount of semen collected.

[0124] In some embodiments, the infrared sensor 290 includes, but is not limited to, P228 infrared sensor 290, LH1958 infrared sensor 290, LHI954 infrared sensor 290, RE200B infrared sensor 290, KDS209 infrared sensor 290, PIS209 infrared sensor 290, LHI878 infrared sensor 290, PD632 infrared sensor 290, etc.

[0125] like Figure 1 As shown, the sound simulation device 300 records the sounds emitted by sows during estrus. When semen collection is being carried out on breeding pigs, the semen collector activates the sound simulation device 300 through the control device 600, thereby attracting the breeding pigs to the vicinity of the sow prosthesis 100 and stimulating the breeding pigs' sexual desire.

[0126] In some of these embodiments, the sound simulation device 300 includes, but is not limited to, MP3, MP4 and loudspeakers.

[0127] like Figure 5 and Figure 6 As shown, the cleaning device 400 includes a water tank 410, a water pump 420, and a nozzle 430. The water tank 410 is located on the lower side of the sow prosthesis 100; the water pump 420 is located on the water tank 410 and is connected to the water tank 410 via a pipe; the nozzle 430 is located at the tail of the sow prosthesis 100 and is connected to the water pump 420 via a pipe.

[0128] Specifically, the water tank 410 is placed on the floor of the semen collection room and located below the sow prosthesis 100, and the water tank 410 is provided with an injection port for liquid injection.

[0129] Specifically, the water pump 420 can be installed on the water tank 410 by welding, threaded connection, riveting or bonding.

[0130] Specifically, the nozzle 430 is directed towards the tail of the sow prosthesis 100, and the penis of the sow is rinsed when the sow climbs onto the sow prosthesis 100.

[0131] Furthermore, the rinsing time can be set by controlling the running time of the pump body 282. For example, whenever the boar climbs onto the sow prosthesis 100, the control device 600 controls the water pump 420 to run for 5 seconds, thereby causing the nozzle 430 to spray clean water towards the boar's penis for a 5-second cleaning time. It should be noted that the liquid stored in the water tank 410 is sterile distilled water at 32-38℃. Water that is too cold may irritate the boar and easily cause stress reactions.

[0132] In some embodiments, the cleaning device 400 also includes a pressure sensor 440. The pressure sensor 440 is disposed on the back of the sow prosthesis 100 and connected to the control device 600, for generating a pressure signal when the boar climbs onto the sow prosthesis 100 and transmitting the pressure signal to the control device 600.

[0133] Specifically, the pressure sensor 440 is located at the mid-rear end of the back of the sow prosthesis 100. This location allows the pressure sensor 440 to detect any weight changes on the sow prosthesis 100 as soon as the boar climbs onto it. Furthermore, to prevent minor pressure changes on the sow prosthesis 100 from triggering the cleaning device 400, this embodiment includes a preset pressure threshold in the control device 600. When the pressure signal transmitted by the pressure sensor 440 exceeds the preset pressure threshold, the control device 600 activates the water pump 420.

[0134] It should be noted that since breeding pigs generally weigh between 400 and 800 jin (200-400 catties), and some breeds can even reach 1000 jin (500 catties), the preset pressure threshold is 50 jin (25 catties).

[0135] In some embodiments, the preset pressure threshold can also be 40 catties, 60 catties, etc., that is, the pressure detected by the pressure sensor 440 is the pressure generated by the lower body of the breeding pig pressing on the sow prosthesis 100.

[0136] In some embodiments, the pressure sensor 440 includes, but is not limited to, gauge pressure sensors, differential pressure sensors, and absolute pressure sensors.

[0137] In some embodiments, the cleaning device 400 also includes a liquid level sensor. The liquid level sensor is vertically mounted inside the water tank 410 and is used to detect the liquid level height inside the water tank 410, generate liquid level information, and transmit the liquid level information to the control device 600. Furthermore, if the liquid level height inside the water tank 410 is lower than a certain preset height threshold, the liquid level sensor generates a warning signal and transmits it to the control device 600, which then controls the device to issue a warning based on the warning signal.

[0138] It should be noted that the liquid level sensor adopts the principle of a float level gauge. When the liquid level in the water tank 410 changes, the float moves up and down accordingly. Due to the magnetic effect, the reed switch of the liquid level sensor is magnetically attracted, which causes the resistance inside the liquid level sensor to change linearly. The converter then converts this resistance change into a 4 to 20mA standard DC signal output, thereby realizing real-time monitoring of the liquid level of the medicine in the storage element 310.

[0139] It should be noted that the prompter can be an alarm, and the prompter can remind the semen collection personnel to add liquid to the water tank 410 through voice prompts, light prompts, etc.

[0140] like Figure 5 , Figure 7 and Figure 8 As shown, the semen collection device 500 includes a loading platform 510, a first card holder 520, a second card holder 530, a second driving component 540, and a weight sensor 550. The loading platform 510 is disposed within the cavity 130 and slidably connected to the inner bottom wall of the cavity 130. A first mounting base 520 is disposed on the loading platform 510 for mounting a waste liquid tank 800, which is used to collect semen from the early stage of ejaculation in the breeding pig. A second mounting base 530 is disposed on the loading platform 510 for mounting a storage tank 900, which is used to collect semen from the middle and late stages of ejaculation in the breeding pig. A second driving component 540 is disposed between the inner bottom wall of the cavity 130 and the loading platform 510 and is connected to the control device 600. It is used to drive the loading platform 510 to reciprocate so that the first mounting base 520 and the second mounting base 530 switch positions at the corresponding ends of the bionic vagina 200. A weight sensor 550 is mounted on the first mounting base 520 and connected to the control device 600. It is used to generate a weight signal when the weight of the item on the first mounting base 520 reaches a preset weight threshold and transmit it to the control device 600.

[0141] Specifically, the loading platform 510 is a movable flat plate, and the size of the loading platform 510 is smaller than the cross-sectional size of the cavity 130, so that the loading platform 510 does not contact the inner wall of the cavity 130 when it moves within the cavity 130.

[0142] Specifically, the first card holder 520 is a hollow cylinder, and the end of the first card holder 520 away from the loading platform 510 is open, so that the waste liquid tank 800 can be installed in the first card holder 520 from the opening of the first card holder 520.

[0143] It should be noted that the height of the first card holder 520 is half the height of the waste liquid tank 800.

[0144] In some embodiments, the first holder 520 includes a guiding arc surface. The guiding arc surface is integrally formed at the opening of the first holder 520, and the guiding arc surface is inclined in a direction away from the central axis of the first holder 520. The guiding arc surface facilitates the installation of the waste liquid tank 800 within the first holder 520.

[0145] In some embodiments, the first mounting base 520 further includes a first elastic member 521. Two first elastic members 521 are provided in the first mounting base 520, both of which are fixed at the opening of the first mounting base 520 and are positioned opposite each other on the inner sidewall of the first mounting base 520. The first elastic members 521 can press the waste liquid tank 800 against the first mounting base 520, thereby increasing the stability of the installation of the waste liquid tank 800.

[0146] In some of these embodiments, the first elastic element 521 includes, but is not limited to, a retaining ring and an elastic sheet.

[0147] Specifically, the second card holder 530 is a hollow cylinder, and the end of the second card holder 530 away from the loading platform 510 is open, so that the liquid storage tank 900 can be installed in the second card holder 530 through the opening.

[0148] It should be noted that the height of the second card holder 530 is half the height of the liquid storage tank 900.

[0149] In some embodiments, the second holder 530 includes a guiding arc surface. The guiding arc surface is integrally formed at the opening of the second holder 530, and the guiding arc surface is inclined in a direction away from the central axis of the second holder 530. The guiding arc surface facilitates the installation of the liquid storage tank 900 within the second holder 530.

[0150] In some embodiments, the second retainer 530 further includes a second elastic member 531. Two second elastic members 531 are provided in the second retainer 530, both of which are fixed at the opening of the second retainer 530 and are positioned opposite each other on the inner sidewall of the second retainer 530. The second elastic members 531 can press the liquid storage tank 900 against the second retainer 530, thereby increasing the stability of the liquid storage tank 900 installation.

[0151] In some of these embodiments, the second elastic element 531 includes, but is not limited to, a retaining ring and an elastic sheet.

[0152] Specifically, the second driving component 540 includes a slider 541, a second driving component 542, and a second transmission component 543. The slider 541 is connected to the bottom of the loading platform 510; the second driving component 542 is disposed within the cavity 130; and the second transmission component 543 connects the second driving component 542 and the loading platform 510, transmitting power from the second driving component 542 to the loading platform 510, causing the loading platform 510 to reciprocate within the cavity 130 via the slider 541.

[0153] Furthermore, four sliders 541 are provided on the loading platform 510, and the four sliders 541 correspond to the four corners of the loading platform 510 respectively. The loading platform 510 can move within the cavity 130 via the sliders 541. It should be noted that placing the sliders 541 at the four corners of the loading platform 510 can increase the stability of the movement of the loading platform 510.

[0154] In addition, a groove 511 is provided on the loading platform 510 at the position corresponding to the slider 541, and the slider 541 is embedded in the groove 511 to ensure that the slider 541 moves along the direction of the connecting line between the first card seat 520 and the second card seat 530.

[0155] In some of these embodiments, the slider 541 includes, but is not limited to, a pulley.

[0156] Furthermore, the second driving member 542 is fixed to the inner bottom wall of the cavity 130 by means of welding, bolting, riveting or bonding, and the output shaft of the second driving member 542 is connected to the second transmission member 543.

[0157] In some embodiments, the second drive element 542 includes, but is not limited to, a drive motor.

[0158] Furthermore, the second transmission component 543 includes a second gear 543a and a second rack 543b. The second gear 543a is coaxially fixed to the output shaft of the second drive component 542; the second rack 543b is fixed to the outer wall of the inner cylinder 220 by welding, bolting, riveting, or bonding, and the second gear 543a and the second rack 543b mesh with each other.

[0159] In some embodiments, the second transmission member 543 further includes a second limiting block 543c, which is integrally formed at both ends of the second rack 543b to limit the travel of the reciprocating motion of the loading platform 510 and ensure that the reciprocating motion of the loading platform 510 in the cavity 130 can be carried out stably.

[0160] In actual operation, the second drive component 542 drives its output shaft to rotate clockwise or counterclockwise, thereby causing the second gear 543a to rotate clockwise or counterclockwise. When the toothed section on the second rack 543b contacts the second gear 543a, the kneading action drives the second rack 543b to reciprocate, thereby enabling the loading platform 510 to reciprocate within the cavity 130.

[0161] Specifically, a weight sensor 550 is installed on the inner bottom wall of the first mounting bracket 520 to detect the weight of the semen collected in the waste liquid tank 800. Once the weight of the semen collected in the waste liquid tank 800 reaches a certain threshold, the weight sensor 550 transmits a weight signal to the control device 600. The control device 600 then controls the second drive component 540 based on the weight signal, causing the carrying platform 510 to move. This aligns the second mounting bracket 530 with the second end of the connecting pipe 260, allowing the storage tank 900 within the second mounting bracket 530 to collect semen from the later stages of ejaculation in the breeding pig. Furthermore, after the automated breeding pig semen collection equipment completes one semen collection operation, the control device 600 controls the second drive component 540 to reset the carrying platform 510 to its initial position and simultaneously resets the weight signal detected by the weight sensor 550 to prepare for the next semen collection operation.

[0162] It should be noted that since the ejaculation volume of breeding pigs is between 150ml and 300ml, the preset weight threshold is 50ml. In some embodiments, the preset weight threshold may also be 40ml, 60ml, etc. The preset weight threshold can be set according to the actual ejaculation volume of the breeding pig, and no further restrictions are imposed here.

[0163] In some of these embodiments, the weight sensor 550 includes, but is not limited to, photoelectric load cells, hydraulic load cells, capacitive load cells, electromagnetic force load cells, magnetic pole changing load cells, and plate ring load cells.

[0164] like Figure 9 and Figure 10As shown, the control device 600 includes a communication sensor 610 and a controller 620. The communication sensor 610 is communicatively connected to the pressure sensor 440 of the cleaning device 400, the infrared sensor 290 of the bionic vagina 200, and the weight sensor 550 of the semen collection device 500. The controller 620 is connected to the communication sensor 610, the sound simulation device 300, the cleaning device 400, and the semen collection device 500. It is used to acquire the infrared signal transmitted by the infrared sensor 290 and control the bionic vagina 200 based on the infrared information; it is also used to acquire the pressure signal transmitted by the pressure sensor 440 and control the cleaning device 400 based on the pressure signal; and it is also used to acquire the weight signal transmitted by the weight sensor 550 and control the semen collection device 500 based on the weight signal.

[0165] In some embodiments, the communication sensor 610 includes, but is not limited to, a Bluetooth sensor, a WiFi sensor, and a ZigBee sensor.

[0166] In some of these embodiments, the controller 620 includes, but is not limited to, an MCU, a Raspberry Pi, or a microcontroller.

[0167] In some of these embodiments, the controller 620 incorporates an infrared judgment model, a liquid level judgment model, a pressure judgment model, and a weight judgment model.

[0168] Furthermore, the control device 600 also includes a power supply 630, which is connected to the controller 620 and is used to supply power to the controller 620.

[0169] Furthermore, such as Figure 5 As shown, the control device 600 also includes a console, a display 640, and several control buttons 650. The communication sensor 610, the controller 620, and the power supply 630 are located inside the console. The display element is located on the surface of the console and connected to the controller 620 to display the current parameters and the current working status. The several control buttons 650 are located on the surface of the console and connected to the controller 620 to adjust parameters and send control commands (such as start and stop).

[0170] In some embodiments, the display 640 includes, but is not limited to, an LCD display, an OLED display, and an e-ink display.

[0171] The method of using this invention is as follows:

[0172] (I) Preparation

[0173] First, the collection personnel cleaned and dried the bionic vagina 200 and replaced the connecting tube 260 at the end of the bionic vagina 200 to ensure the cleanliness of the inside of the bionic vagina 200.

[0174] Then, open the cover plate 140 on the sow prosthesis 100 and install the waste liquid tank 800 and the storage tank 900 on the first bracket 520 and the second bracket 530 respectively;

[0175] Secondly, the control device 600 starts the pump body 282 to deliver lubricating fluid to the simulated vagina body 230, thereby simulating the moist environment inside the sow's vagina and further stimulating the penis of the breeding pig by the simulated vagina body 230.

[0176] The control device 600 activates the thermostat 270, which generates heat and transfers it to the prosthetic vagina 230, maintaining the temperature of the prosthetic vagina 230 between 38.0 and 38.7°C. This makes the environment inside the prosthetic vagina 200 more like the real vaginal environment of a sow, thereby increasing the stimulation of the prosthetic vagina 200 on the penis of the breeding pig.

[0177] Finally, close the cover plate 140 and prepare for the data collection operation.

[0178] (II) Cleaning

[0179] When the boar climbs onto the sow prosthesis 100, and the pressure value detected by the pressure sensor 440 on the sow prosthesis 100 exceeds a preset threshold, the control device 600 starts the water pump 420, causing the nozzle 430 to spray warm water at a suitable temperature onto the boar's penis, thereby cleaning the boar's penis. It should be noted that, in order to avoid the cleaning time being too long and causing discomfort to the boar, the rinsing time is controlled by controlling the running time of the water pump 420. That is, the control device 600 controls the water pump 420 to run for 5 seconds, so that the nozzle 430 sprays water onto the boar's penis for a period of 5 seconds.

[0180] (III) Operation

[0181] When the penis of a breeding pig enters the bionic vagina 200, the infrared sensor 290 detects the presence of the penis inside the bionic vagina 200, causing the control device 600 to simultaneously activate the first drive component 240. The first drive component 242 drives its output shaft to rotate clockwise or counterclockwise, thereby causing the first gear 243a to rotate clockwise or counterclockwise. When the toothed section on the first rack 243b contacts the first gear 243a, the kneading action drives the first rack 243b to reciprocate, thereby causing the inner cylinder 220 to reciprocate within the outer cylinder 210, thus stimulating the penis of the breeding pig through the bionic vagina body 230.

[0182] (iv) Collection

[0183] Initially, the loading platform 510 aligns the first card holder 520 with the second end of the connecting pipe 260, and the waste liquid tank 800 inside the first card holder 520 collects the semen of the boar in the early stage of ejaculation.

[0184] After the weight of the semen collected in the waste liquid tank 800 reaches a certain threshold, the weight sensor 550 transmits the weight signal to the control device 600, and the control device 600 controls the second drive component 540 according to the weight signal, so that the loading platform 510 moves, thereby aligning the second card holder 530 with the second end of the connecting pipe 260, and then the storage tank 900 in the second card holder 530 collects the semen in the middle and late stages of the ejaculation of the boar.

[0185] After the semen collection operation was completed on the breeding pig, the semen collector removed the storage tank 900 from the cavity 130;

[0186] Subsequently, the loading platform 510 is reset to its initial position on the control console (that is, the waste liquid tank 800 on the first card holder 520 is aligned with the end of the bionic vagina 200), so that the automated boar semen collection equipment can carry out the next semen collection operation.

[0187] Finally, the semen is diluted. When the semen is sent to the laboratory, its appearance and odor should be evaluated to determine if blood or urine is present. Semen with abnormal color or odor should be discarded. Stir with a clean glass rod, and use a micropipette to take 20 μL of semen, place it in the center of a glass slide, cover with a coverslip, and observe its motility and sperm quality at 100x and 400x magnification. Semen density can be measured using a hematology counter, densitometer, spectrophotometer, or CASA system. Calculate the volume of diluent and the number of aliquots using the semen dilution formula. During dilution, slowly pour the diluent down the side of the measuring cup containing the semen, constantly stirring with a glass rod to promote uniform mixing of sperm and diluent. The diluted semen should be aliquoted and stored according to requirements.

[0188] Experiments have shown that boars using this automated semen collection device for coordinated semen collection showed a significant reduction in impurities and abnormal sperm count in their semen, a marked increase in sperm motility, a significant increase in the number of semen fragments collected, a significant improvement in production performance, and a reduction in breeding costs during subsequent testing.

[0189] The advantages of this invention are as follows: by simulating the real environment of a sow's vagina using the bionic vagina 200, the breeding pig can experience a more realistic mating environment during semen collection, reducing discomfort and providing sufficient stimulation, thereby shortening the training time for boar semen collection. Furthermore, simulating the real vaginal environment of a sow using the bionic vagina 200 reduces the overall operational difficulty of the semen collection process and decreases the workload of the personnel. The cleaning device 400 can also pre-clean the penile area of ​​the breeding pig, ensuring hygiene standards throughout the semen collection process. Additionally, the semen from the initial ejaculation stage can be collected separately from the semen from subsequent ejaculations. Since the initial ejaculation may contain substances such as urine, separate collection ensures higher quality semen and improves the success rate of subsequent mating.

[0190] Example 2

[0191] This embodiment relates to the automated boar semen collection system of the present invention.

[0192] like Figure 11 , Figure 12 and Figure 13 As shown, an automated boar semen collection system includes a semen collection pen 700, an automated boar semen collection device as described in Example 1, a waste liquid tank 800, and a storage tank 900. The automated boar semen collection device is installed inside the semen collection pen 700; the waste liquid tank 800 is installed on the automated boar semen collection device and is used to collect semen from the initial ejaculation of the boar; the storage tank 900 is installed on the automated boar semen collection device and is used to collect semen from subsequent ejaculations of the boar.

[0193] like Figure 12 As shown, the semen collection pen 700 includes an entrance 710 and an exit 720. The entrance 710 and exit 720 of the semen collection pen 700 are positioned opposite each other, and both the entrance 710 and exit 720 are equipped with openable and closable fences. These fences allow the breeding pigs to be confined during semen collection, preventing them from becoming agitated or irritable during the process. This effectively restrains the pigs and protects the semen collection personnel.

[0194] In some embodiments, the inlet 710 and the outlet 720 may also be located on the same side of the semen collection column 700, that is, one half of any side of the semen collection column 700 is the inlet 710 and the other half is the outlet 720.

[0195] It should be noted that the length of the semen collection column 700 is 2.5m, the width of the semen collection column 700 is 1.5m, and the height of the semen collection column 700 is 1m.

[0196] In some embodiments, the length of the semen collection column 700 may be 2m or 3m, the width of the semen collection column 700 may be 1m or 2m, and the height of the semen collection column 700 may be 1.3m or 1.5m.

[0197] Furthermore, locking devices are provided on the fences at the entrance 710 and exit 720 of the semen collection pen 700. The locking devices can lock the fences at the entrance 710 and exit 720 of the semen collection pen 700 to the main body of the semen collection pen 700, which can prevent the breeding pigs from colliding and causing them to get out of control.

[0198] Furthermore, the semen collection pen 700 also includes a side opening 730 (which is the operating opening). The side opening 730 is located on the cover of the sow prosthesis 100 in the semen collection pen 700. The side opening 730 facilitates the installation or retrieval of the waste liquid tank 800 and the storage tank 900 by the semen collection personnel on the outside of the semen collection pen 700, further improving the operational safety of the semen collection personnel.

[0199] The method of using this invention is as follows:

[0200] During semen collection, the breeding pigs are driven from the pigpen to the entrance 710 of the semen collection pen 700, and the fence at the entrance 710 is opened to allow the breeding pigs to enter the semen collection pen 700.

[0201] Subsequently, after the semen collection operation is completed on the breeding pig through the operating port 730, the exit 720 of the semen collection pen 700 is opened, and the breeding pig is driven back into the pigpen. The above operation is repeated to carry out continuous semen collection operations on multiple breeding pigs.

[0202] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated semen collection device for breeding pigs, characterized in that, include: Sow prosthesis, which has a cavity inside; A bionic vagina is placed at the tail of the sow prosthesis, with the end of the bionic vagina extending into the cavity; A sound simulation device is installed in the head of the sow prosthesis to simulate the sounds made by a sow during estrus. A cleaning device, installed at the tail of the sow prosthesis, is used to rinse the penis of the breeding pig; A semen collection device, installed inside the cavity, is used to collect semen flowing out from the end of the bionic vagina; The control device is communicatively connected to the bionic vagina, sound simulation device, cleaning device, and semen collection device, respectively. Among them, the bionic vagina includes: The outer tube, the outer wall of which is connected to the sow prosthesis; The inner cylinder is slidably connected to the outer cylinder, and the inner cylinder can reciprocate inside the outer cylinder, with the end of the inner cylinder extending into the cavity. A vaginal-like body is arranged around the inner wall of the inner tube; The first driving component is located between the outer cylinder and the inner cylinder and is connected in communication with the control device. It is used to drive the inner cylinder to reciprocate and simulate the internal pressure of the sow's vagina. A thermostat is installed between the inner wall of the inner cylinder and the simulated vagina body, and is connected in communication with the control device to simulate the temperature of a sow's vagina. The humidifier is located between the outer cylinder and the inner cylinder and is connected to the control device. The humidifier is also connected to the holes in the inner wall of the simulated vagina through a pipe to simulate the lubrication of a sow's vagina. An infrared sensor is installed at the vaginal opening of the bionic vagina and connected to the control device. It is used to generate an infrared signal when the penis of the breeding pig enters the bionic vagina and transmit the infrared signal to the control device. The cleaning device includes: The water tank is located on the underside of the sow's prosthesis; The water pump is installed on the water tank and connected to the water tank via a pipe. The nozzle is located at the tail of the sow prosthesis and is connected to a water pump via a pipe. A pressure sensor, located on the back of the sow prosthesis and connected to the control device, is used to generate a pressure signal when the boar climbs onto the sow prosthesis and transmit the pressure signal to the control device. The semen collection device includes: The cargo platform is set inside the cavity and is slidably connected to the inner bottom wall of the cavity. The first slot, set on the loading platform, is used to install a waste liquid tank, which is used to collect semen from the early stages of ejaculation in breeding pigs. The second slot is set on the loading platform and is used to install the liquid storage tank, which is used to collect semen from the middle and late stages of ejaculation in breeding pigs. The second driving component is located between the inner bottom wall of the cavity and the loading platform, and is connected to the control device. It is used to drive the loading platform to move back and forth so that the first card holder and the second card holder can switch the position of the corresponding bionic vagina end. A weight sensor, installed on the first card holder and connected to the control device, is used to generate a weight signal and transmit it to the control device when the weight of the waste liquid tank on the first card holder reaches a preset weight threshold. The control device controls the second drive component based on the weight signal, causing the platform to move so that the second card slot is aligned with the end of the bionic vagina.

2. The automated boar semen collection equipment according to claim 1, characterized in that, The first driving component includes: Connector that slides the outer cylinder and inner cylinder together; The first driving component is connected to the outer cylinder; The first transmission component is connected between the first driving component and the inner cylinder, and is used to transmit the power of the first driving component to the inner cylinder, so that the inner cylinder reciprocates.

3. The automated boar semen collection equipment according to claim 1, characterized in that, The second drive component includes: A sliding component is attached to the bottom of the loading platform; The second driving component is located inside the cavity; The second transmission component, connected between the second drive component and the loading platform, is used to transmit the power of the second drive component to the loading platform, so that the loading platform reciprocates within the cavity via the sliding component.

4. The automated boar semen collection equipment according to claim 1, characterized in that, The control device includes: The communication sensors are respectively connected to the pressure sensor of the cleaning device, the infrared sensor of the bionic vagina, and the weight sensor of the semen collection device. The controller is connected to the communication sensor, the sound simulation device, the cleaning device, and the semen collection device, respectively. It is used to acquire the infrared signal transmitted by the infrared sensor and control the bionic vagina according to the infrared signal; it is also used to acquire the pressure signal transmitted by the pressure sensor and control the cleaning device according to the pressure signal; it is also used to acquire the weight signal transmitted by the weight sensor and control the semen collection device according to the weight signal.

5. An automated semen collection system for breeding pigs, characterized in that, include: Semen collection column; The automated boar semen collection device as described in any one of claims 1 to 4 is installed inside the semen collection pen; Waste liquid tank, a semen collection device installed in automated boar semen collection equipment, is used to collect semen from boars during the initial ejaculation stage; A semen collection tank is installed in an automated boar semen collection device to collect semen from boars during the mid-to-late stages of ejaculation.

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