42 results about "Waterfowl" patented technology

The invention provides an antibacterial peptide prepared by utilizing copper-loaded lactobacillus plantarum, which is prepared by inoculating high-copper-loaded duck-origin lactobacillus plantarum into a culture medium for fermentation and then using fermentation liquor, and the preservation number of the copper-loaded duck-origin lactobacillus plantarum is CGMCC (China General Microbiological Culture Collection Center) NO.32835. The lactobacillus plantarum obtained through domestication can tolerate high-concentration copper ions, the lactobacillus plantarum obtained through domestication and breeding can stably grow, and metabiotics generated through fermentation of the lactobacillus plantarum contain small peptides, small molecular organic acids, digestive enzymes and the like. Due to the fact that the antibiotic peptide rich in the afterbiogen has an obvious inhibiting effect on harmful bacteria of waterfowls, the prepared antibiotic peptide preparation effectively improves the antibacterial activity, and as a feed additive, the antibiotic peptide preparation is beneficial to elimination of inflammatory factors of intestinal tracts of poultry, maintenance of intestinal health, increase of the utilization rate of feed and improvement of the product quality.

The invention belongs to the technical field of veterinary diagnosis, and particularly relates to a novel duck reovirus agar diffusion antigen as well as a preparation method and application thereof. The preparation method comprises the following steps: inoculating a novel duck reovirus GX2022 strain to an SPF (specific pathogen free) duck embryo at the age of 6-10 days, harvesting and inoculating a diseased duck embryo body within 24-144 hours, adding sterile normal saline, fully grinding, freezing and thawing (freezing at the temperature of-20 DEG C and thawing at the temperature of 25 DEG C), carrying out solid-liquid separation, collecting supernate, adding formaldehyde for inactivation, uniformly mixing the inactivated virus liquid with a freeze-drying protective additive, and freeze-drying to obtain the agar diffusion antigen. Compared with the prior art, the method has the advantages that the agar diffusion titer is as high as 1: 24, the specificity is strong, the stability is good, the titer is high, the yield is high, the reaction precipitation line is clear, the detection is convenient, the method can be used for evaluating the immune effect of the NDRV and diagnosing the infection of the NDRV, can also be used for screening NDRV antibody negative ducks, detecting exogenous virus antibodies of waterfowl live vaccines or virus seeds, performing epidemiological investigation and the like, and has a wide application prospect.

This application relates to a method for identifying avian influenza spillover risk areas at the waterfowl-seabird interface, comprising: acquiring indicator data and environmental data of avian influenza waterfowl-seabird hosts; wherein, the indicator data includes species distribution point data of avian influenza waterfowl-seabird hosts and avian influenza occurrence point data in seabirds; screening species distribution point data monthly; determining whether the species distribution point data is sufficient according to preset conditions; if all species distribution point data is sufficient, calculating the waterfowl-seabird spillover risk index based on activity intensity; otherwise, calculating the waterfowl-seabird spillover risk index based on species richness, thereby identifying avian influenza spillover risk areas between waterfowl and seabirds. By integrating avian influenza waterfowl-seabird host indicator data and environmental data, and using different methods to calculate the waterfowl-seabird spillover risk index pixel by pixel according to different species distribution point distribution situations, the method can accurately identify avian influenza spillover risk areas between waterfowl and seabirds.

The utility model provides a kind of waterfowl snowshoe sampling device, belong to snowshoe sampling equipment field.Its technical scheme is: including shell, the V-shaped cutting blade of several settings in shell interior, shell top is provided with top cover, and top cover is provided with knife assembly.The utility model has the beneficial effects that: simple structure, convenient to use, can be quickly and efficiently collected and sampled to waterfowl snowshoe.

This invention belongs to the technical field of virus detection, specifically relating to a PCR detection kit for the simultaneous detection of four DNA viruses in waterfowl and its application. The PCR detection primer set for the simultaneous detection of four DNA viruses in waterfowl of this invention is the optimal primer set obtained through experimental screening. The kit composed of these primers can rapidly and specifically amplify and diagnose Muscovy duck parvovirus, duck plague virus, duck adenovirus type 3, and duck circovirus simultaneously, exhibiting high specificity and sensitivity. It can accurately and rapidly identify MDPV, DPV, DAdV-3, and DuCV, and can complete quantitative real-time PCR detection in approximately 50 minutes. The kit is simple and practical to operate, achieving efficient simultaneous detection of four viruses, shortening the detection cycle, increasing sensitivity by 10-1000 times, significantly improving early disease diagnosis capabilities, significantly reducing the misdiagnosis rate of diseases in poultry farms, and contributing to the sustainable development of the poultry farming industry.

This invention discloses an automatic feeding device and method for waterfowl farming, belonging to the field of waterfowl farming technology. The device includes a feeding cage, an intelligent feeding mechanism, a soil improvement mechanism, and a monitoring and control mechanism. The feeding cage consists of a supporting cage, a bottom-lifting cage, a laterally extending cage, and a transition cage, forming a closed waterfowl farming environment. Through this method, the lifting and laterally extending feeding cage structure allows the device to be close to the ground and extend between adjacent fruit tree trunks, strictly limiting the waterfowl's activity range to the target area, preventing them from pecking at fruits and branches, and resolving the conflict between grazing and fruit tree growth. The environmental control mechanism provides a comfortable living environment for the waterfowl, and the cage structure remains closed during extension and lifting. The soil improvement mechanism enables in-situ fermentation and decomposition of manure, achieving an ecological closed loop of "farming-weeding-fertilizing."

The invention belongs to the field of cell biology, and relates to a shelduck fibroblast cell line which is finally obtained by performing primary culture, screening and optimized subculture on shelduck embryos serving as materials. The fibroblasts cultured by the method are slender, fusiform, triangular and irregular, and can be continuously subcultured for at least 82 generations; the shelduck fibroblast cell line is used for culturing waterfowl viruses such as duck plague virus, novel duck reovirus, duck tembusu virus, duck parvovirus and the like for the first time; compared with the existing duck-derived fibroblast culture, the duck-derived fibroblast culture medium has the advantages of high virus content and wide application range. The shelduck fibroblast cell line provided by the invention can provide a large amount of high-quality materials for scientific researches of cell engineering, molecular biology, immunology and the like; the method is used for culturing, separating and identifying poultry viruses, provides raw materials for development and production of poultry attenuated vaccines and inactivated vaccines, can shorten the production period and reduce the production cost, and has certain practical significance for large-scale production of vaccines.

The invention relates to an avian influenza overflow risk area identification method based on a waterfowl-sea bird interface. The method comprises the following steps: obtaining index data and environment data of an avian influenza waterfowl-sea bird host; wherein the index data comprises species distribution point data of bird flu waterfowl-sea bird hosts and sea bird flu occurrence point data; screening species distribution point data month by month; judging whether the species distribution point data is sufficient or not according to a preset condition; if all species distribution point data are sufficient, calculating a waterfowl-sea bird overflow risk index based on an activity intensity method; otherwise, calculating a waterfowl-sea bird overflow risk index based on a species richness method, further identifying an avian influenza overflow risk area between waterfowls and sea birds, and identifying an avian influenza overflow risk area between waterfowls and sea birds by integrating the avian influenza waterfowl-sea bird host index data and the environmental data according to different distribution conditions of species distribution points. And respectively calculating waterfowl-sea bird overflow risk indexes pixel by pixel by adopting different methods so as to accurately identify an avian influenza overflow risk area between waterfowls and sea birds.

The utility model provides an automatic feeding device for a waterfowl culture pond, which relates to the technical field of automatic feeding devices and comprises a moving seat and a storage tank, and a feed pipe is fixedly mounted at the top of the storage tank. The pull handle is pulled to drive the insertion rod to slide in the sliding hole, the insertion rod can drive the circular ring to move and compress the spring in the sliding process, the insertion rod can be separated from the limiting hole after being compressed to a certain degree, at the moment, the baffle plate can slide, the relative position of the baffle plate and the discharging notch is changed, and therefore the discharging angle range is adjusted; after adjustment, a pull handle is loosened, under the action of a spring, an insertion rod is inserted into a limiting hole again, and the position of a baffle plate is fixed, the design can conveniently adjust the feeding range at any time according to the actual distribution condition of waterfowls in the actual breeding process, and then the feeding requirement of the waterfowls is met; the situation that part of waterfowls excessively eat food and part of waterfowls are not full due to the inaccurate feeding range is avoided.

The present disclosure pertains to an innovative method for attracting waterfowl, specifically designed to enhance the efficacy of waterfowl hunting by replicating natural water sounds that mimic the activities of waterfowl, such as splashing, swimming, fishing, and mating. The invention utilizes a mechanical apparatus equipped with a sound-producing puck attached to a reciprocating pole, driven by a motor or by use by hand. The puck is designed to strike the water at controlled intervals, creating a variety of water sounds that effectively mimic natural waterfowl sounds, thereby attracting the birds. This method is intended for use with either standalone devices or in conjunction with existing waterfowl decoys to provide hunters with a novel and more effective way to attract waterfowl by using sounds that replicate natural waterfowl behavior.

The application relates to an antibiotic-free breeding method of waterfowls, in particular to an antibiotic-free breeding method of ducks. The method comprises the following steps: (1) preparation of fermented feed of ducks: duck-source compound probiotics are used to ferment full-price feed of ducks, and the prepared fermented feed is used as daily feed at 100%; (2) addition of beneficial bacteria in drinking water: A. addition of duck-source compound probiotics in drinking water; B. addition of compound beneficial microbial metabolites in drinking water; (3) sterilization of litter: breeding excrement and high-temperature fermentation bacteria are added to carry out high-temperature harmless fermentation treatment on the litter in the duck breeding process, and the high temperature above 70 DEG C lasts for 5 days. The application can improve the absorption of feed, improve the immunity of ducks, guarantee the environmental protection and recycling in breeding, and solve the environmental protection problem in breeding.

A subscale waterfowl decoy device including a subscale body having a length in the range of 0.25 L to 0.85 L, where L is the length of a full-sized waterfowl. The subscale waterfowl decoy includes a pair of subscale waterfowl wings attached to the body, a subscale waterfowl head attached to the subscale body. The subscale body made of a buoyant material, or other material.

The invention relates to the technical field of waterfowl breeding, and discloses a waterfowl hatching egg disinfection detection grading method and system. The method comprises the steps of hatching egg pretreatment, gradient collaborative disinfection, multi-dimensional nondestructive testing and intelligent grading and sorting which are executed in sequence. The gradient collaborative disinfection adopts an alternate collaborative process of primary low-temperature plasma treatment, ozone permeation treatment and secondary low-temperature plasma treatment; machine vision, near infrared spectroscopic analysis and mechanical property detection are synchronously carried out in multi-dimensional nondestructive detection, and time-space registration and fusion of multi-source detection features are completed; a grading evaluation model is constructed, and grading and automatic sorting of hatching egg hatching priorities are achieved. The problems that existing hatching eggs are not thoroughly disinfected and sterilized, embryos are prone to being damaged, the detection dimension is single, and grading is extensive are solved, the sterilization effect and embryo safety are considered, the hatching egg detection precision and grading accuracy are improved, the hatching egg hatching rate and the healthy young rate can be remarkably increased, and the production requirement for large-scale waterfowl breeding is met.

A programmable waterfowl decoy includes a waterfowl-shaped body, a propulsion assembly, and a programmable control system. The waterfowl-shaped body includes buoyant material. The propulsion assembly is mounted at a bottom portion of the waterfowl-shaped body and designed to propel the waterfowl decoy through water. The programmable control system is positioned in the waterfowl-shaped body and is operatively connected to the propulsion assembly to automatically control the movement of the waterfowl decoy in water according to a user-selected program.

The utility model discloses an adjustable feeding device for preventing waterfowls from grabbing food, which belongs to the field of waterfowl healthy feeding management and comprises a trough body, double-sided fences and supporting legs, the supporting legs are mounted on the side wall of the trough body, the double-sided fences are detachably mounted at the top end of the trough body, and the double-sided fences are detachably mounted on the side wall of the trough body. Gaps among the double-sided fences are used for enabling the heads and the necks of waterfowls to go deep into the trough body to eat food, so that the waterfowls are prevented from snatching the food. The device can avoid food grabbing as much as possible, reduce feed pollution and waste, guarantee nutrient intake of waterfowls, and promote health and growth of the waterfowls; meanwhile, the distance between the two-sided fences and the height of the trough body can be adjusted, so that the feeding equipment is wide in application object range, can be applied to waterfowls of various varieties and different growth stages, and has the advantages of universality, reasonable and simple structure device, easiness in production and manufacturing, convenience in use and easiness in popularization and application.

A lightweight vehicle useful for harassing wildlife / waterfowl includes an elongated body / fuselage with a motor-powered propeller in the front and a vertical tail with a controllable rudder in the rear. The vehicle is able to travel over land or water on a pair of elongated floats having a ski-type shape that support the vehicle. The vehicle is made of lightweight materials such as carbon fiber so that it can travel over water, ice, snow, and mown grass without damaging the grass. The vehicle may be remotely controlled or autonomous.

The invention discloses a waterfowl growth performance measurement and accurate feeding method and device, and belongs to the technical field of waterfowl breeding, and the method comprises the steps: reading an RFID tag of a waterfowl foot ring through an RFID antenna, and obtaining the identity information of waterfowls; obtaining the weight of the waterfowl, obtaining a predicted daily weight by using a CUT-KDE algorithm, and matching the predicted daily weight with the identity information; obtaining feed weight and time when waterfowls enter and leave, and obtaining a behavior feature set; packaging the identity information, the predicted daily weight and the behavior feature set of the waterfowls, predicting the feed intake by using an improved BP neural network model PDLR-BP to obtain an expected intake value, and feeding the waterfowls; the feed conversion rate is obtained based on the predicted daily weight and daily feed intake, waterfowls are graded, and waterfowl grades and analysis results are displayed through a visual interface for farmers to make decisions. According to the method, the data acquisition frequency and precision are remarkably improved, and the data reliability is guaranteed.

The invention belongs to the technical field of virus detection, and particularly relates to a PCR (Polymerase Chain Reaction) detection kit for four vertical transmission viruses of waterfowl and application of the PCR detection kit. The kit can rapidly, specifically and simultaneously amplify and diagnose duck hepatitis virus type I (DHV-1), duck Tembusu virus DTMUV, Muscovy duck reovirus MDRV and duck astrovirus DAstV, has high specificity and sensitivity, can accurately and rapidly identify DHV-1, DTMUV, MDRV and DAstV, can complete fluorescent quantitative PCR detection in about 50 minutes, and is simple to operate and practical. The detection period is shortened to 1.5 hours from 6-8 hours of a traditional method, the sensitivity is improved by 10-1000 times, the early diagnosis capability of epidemic diseases is remarkably improved, and the epidemic disease misjudgment rate of a farm is obviously reduced. Abuse of vaccines and drugs is reduced, and sustainable development of the poultry breeding industry is promoted.

A waterfowl motion simulation device for affecting the motion of waterfowl decoys in an aquatic terrain is disclosed. The waterfowl motion simulation device includes a winding unit configured to wind and unwind a line assembly. The line assembly includes a main line with a plurality of decoy attachment appendages provided at various points along its length. The winding unit includes a motor accommodated inside a winding unit housing, and a winding implement rotatably supported outside the winding unit housing by an output shaft of the motor. A control unit electrically connected to the motor is operable to control the rotation of the winding implement to wind and unwind the line assembly by controlling the motor according to a rotational speed and timing indicated by user input received through at least one user interface. A power supply unit is removably engaged with, and electrically connected to the control unit through, a power supply interface on an exterior surface of the winding unit housing. The waterfowl motion simulation device preferably also includes a mounting assembly configured to adjustably support at least in part the power supply unit, power supply interface, winding unit, and control unit above an aquatic terrain. A method of using the waterfowl motion simulation device to affect the motion of at least one waterfowl decoy in an aquatic terrain is also described.

The application provides a waterfowl blood collection production system and process, which comprises a rack, the top of the rack is provided with a circulating conveying assembly, the circulating conveying assembly is connected with a jacket assembly, the jacket assembly is provided with a blood collection assembly, and the blood collection assembly is connected with a blood collection assembly through a blood conveying pipeline; the waterfowl is fixed by the air bag jacket, so that a comprehensive wrapping and fixing effect can be realized, the influence of poor fixing of the waterfowl on blood collection is effectively avoided, and the air bag jacket can also extrude the waterfowl, so that blood flow is promoted; a buffer tank is arranged to filter and sterilize the blood plasma, so that the cleanliness of the blood plasma is ensured, and even if the blood collection stage is contaminated, the final collection effect will not be affected.

The application discloses a method for constructing a low-carbon landscape type ecosystem for reducing nitrogen and removing phosphorus of surface river and lake water bodies, which comprises the following steps: introducing the water body to be treated into a multifunctional diversion and sedimentation channel, an A-O improved wetland, an ecological conservation type wetland and a multistage A-O oxidation pond, and finally storing and recycling the treated water body in an ecological river and lake self-purification area. The multifunctional diversion and sedimentation channel is arranged to uniformly distribute the water body, reduce the content of silt and suspended solids in the water body, improve the purification capacity of the subsequent wetland and prevent the wetland from being blocked. The A-O improved wetland, the ecological conservation type wetland and the multistage A-O oxidation pond are connected in parallel to purify the water body step by step, improve the effect of reducing nitrogen and removing phosphorus of the water body, improve the impact resistance of the ecological system and facilitate the operation, maintenance and management in the later period. Meanwhile, various types of plants are planted, aquatic animals are released and waterfowl are attracted to create diversified ecological landscapes and improve the biodiversity.

This application discloses a method and apparatus for measuring the growth performance and precise feeding of waterfowl, belonging to the field of waterfowl farming technology. The method includes: using an RFID antenna to read the RFID tags on the waterfowl's leg bands to obtain the waterfowl's identity information; obtaining the waterfowl's weight, using the CUT-KDE algorithm to obtain the predicted daily weight, and matching it with the identity information; obtaining the feed weight and time when the waterfowl enters and leaves, obtaining a behavioral feature set; encapsulating the waterfowl's identity information, predicted daily weight, and behavioral feature set, and using an improved BP neural network model PDLR-BP to predict feed intake, obtaining the expected intake value, and then feeding; obtaining the feed conversion ratio based on the predicted daily weight and daily feed intake, classifying the waterfowl into grades, and displaying the waterfowl grades and analysis results through a visual interface for farmers' decision-making. This method significantly improves the frequency and accuracy of data collection and ensures data reliability.

The invention discloses a transcription factor related to the ovarian behavior of margang geese and application of the transcription factor, and belongs to the technical field of biology. According to the invention, the change condition of chromatin accessibility of pituitary tissue of the ovary behavior of the equi-gang geese is researched through ATAC-seq, the fact that transcription factors NR5A1, NR5A2, PGR, ESRRB, EGR1, NeuroD1, POU1F1 and LHX3 participate in the biological function of adjusting the ovary behavior of the equi-gang geese is found, and the transcription factors form a core network for adjusting the ovary behavior. A transcription factor mediated gene regulatory network is utilized, and key hub factors in a targeted regulatory network are used for precise molecular breeding through technologies such as gene editing and the like, so that the in-nest character of geese is directionally improved, and the breeding geese with weakened in-nest property are directly and efficiently bred. The invention provides a new path for improving the breeding and egg laying performance of the geese and breeding improved waterfowls.

The invention discloses a clostridium perfringens bacteriophage and a coating process thereof, the clostridium perfringens bacteriophage comprises a bacteriophage, the bacteriophage is clostridium perfringens bacteriophage CP1, and the preservation number is CCTCC NO: M20251192; through electron microscope observation, the clostridium perfringens bacteriophage CP1 is in a tadpole shape and can quickly and thoroughly kill clostridium perfringens, so that serositis of waterfowls, salpingitis of poultry and the like are effectively controlled, the production benefits of farms are improved, and the production cost is reduced. The genome of the clostridium perfringens bacteriophage CP1 does not contain virulence genes, lysogenic genes and drug-resistant genes and has high biological safety, the titer of the clostridium perfringens bacteriophage CP1 is only reduced by one order of magnitude when the clostridium perfringens bacteriophage CP1 is subjected to water bath at 50 DEG C for 24 hours, 10 < 4 > PFU / mL bacteriophage still survives when the clostridium perfringens bacteriophage CP1 is subjected to water bath at 60 DEG C for 48 hours, the clostridium perfringens bacteriophage CP1 has good thermal stability, meanwhile, the burst period of the bacteriophage CP1 is about 60 minutes, the explosion amount is 300; therefore, the bacteriophage CP1 has a relatively short incubation period and a relatively high outbreak amount.

The application provides an antibacterial peptide prepared by using copper-loaded lactobacillus plantarum, which is prepared by inoculating high-copper-loaded duck-derived lactobacillus plantarum into a culture medium for fermentation and then using the fermentation liquor, and the preservation number of the copper-loaded duck-derived lactobacillus plantarum is CGMCC NO.32835. The lactobacillus plantarum obtained by domestication can tolerate high-concentration copper ions, and the lactobacillus plantarum obtained by domestication and selection can stably grow, and the postbiotic produced by fermentation contains small peptides, small-molecule organic acids, digestive enzymes and the like. Since the postbiotic is rich in antibacterial peptides which have obvious inhibitory effect on harmful bacteria of waterfowl, the prepared antibacterial peptide preparation effectively improves the antibacterial activity, and as a feed additive, is beneficial to eliminating poultry intestinal inflammatory factors, maintaining intestinal health, improving feed utilization, and improving product quality.

The invention discloses a self-cleaning type waterfowl breeding feeder, and belongs to the technical field of feeding, the self-cleaning type waterfowl breeding feeder comprises a storage box, and the bottom of the storage box is connected with an adjustable quantitative feeding assembly; the lower end of the outer wall of the storage box is fixedly connected with a first side plate, the first side plate is fixedly connected with a conical material distributing assembly, and the conical material distributing assembly is located under the adjustable quantitative discharging assembly; an adjustable driving assembly is fixedly connected to the inner top of the conical material distributing assembly; a feeding supporting disc is fixedly connected to the bottom of the first side plate, and an annular groove is formed in the top of the feeding supporting disc. The annular groove is connected with a pollution discharge assembly, the pollution discharge assembly is opened during pollution discharge, and the pollution discharge assembly blocks the bottom of the annular groove during feeding; the adjustable driving assembly comprises a water spraying assembly, a sawtooth-shaped uniform spreading assembly and an adjustable sawtooth assembly; the adjustable driving assembly rotates along the annular groove to scrape food residues and water adhering to the interior of the annular groove, the food residues and the water are scraped to the sewage discharging assembly, the sewage discharging assembly collects and treats the food residues and the water, and cleaning of the annular groove is achieved.

The utility model relates to a land-based ring bucket waterfowl breeding house in the technical field of waterfowl breeding equipment. The land-based ring bucket waterfowl breeding house comprises a net bed, the net bed is divided into a rest area and an activity area in the length direction, the activity area is matched with a water pool, the water pool can be a canvas ring barrel, the net bed comprises a bed frame and a steel wire mesh fixed to the bed frame, the bed frame is fixed to the ground through supporting columns, and a movable canopy is arranged on the bed frame. The arrangement of the rest area, the activity area and the water pool is beneficial to improving the breeding conditions of waterfowls; the canopy can move on the bed frame, the rest area or the activity area of the net bed can be sheltered from rain according to needs, the rain sheltering range of the canopy can be adjusted, and waterfowl breeding is facilitated.

The invention relates to the technical field of escherichia coli monitoring, in particular to an escherichia coli monitoring and early warning device for waterfowl breeding. The Escherichia coli monitoring and early warning device for waterfowl breeding comprises a detector body, a sampling rod, a spherical filter screen, a cleaning assembly and a fine filter cylinder, reaction tanks and cleaning mechanisms are installed in the detector body at equal intervals, and the reaction tanks are used for detecting Escherichia coli in a water sample. According to the Escherichia coli monitoring and early warning device for waterfowl breeding, through a double filtering structure of the spherical filtering net and the fine filtering cylinder, the filtering area is enlarged through the spherical filtering net, and large impurities are intercepted; feces particles and other fine impurities are thoroughly removed through fine filtering holes of the fine filtering cylinder, and the situation that the impurities interfere with the specific reaction of an enzyme substrate reagent and escherichia coli is avoided. Meanwhile, the cleaning assembly continuously scrapes algae and residues on the surface of the spherical filter screen, so that the filter screen is prevented from being blocked, continuous and stable inflow of the water sample is ensured, and the influence of impurity accumulation on the filtering efficiency is avoided.

The invention discloses an unconstrained batch waterfowl body size measurement system based on computer vision, and relates to the technical field of monitoring analysis, and the system comprises a correlation analysis module which is used for carrying out the time-space movement track marking according to the distribution density data between the waterfowl individual form differences, obtaining the time-space movement track data between the waterfowl individual form differences, and outputting the time-space movement track data; performing continuous identity tracking among waterfowl individuals based on the space-time movement track data among the waterfowl individual form differences to obtain waterfowl individual identity continuous tracking data, and performing body size measurement data association analysis according to the waterfowl individual identity continuous tracking data to obtain body size measurement data association data; the correction module is used for acquiring real-time environment data of the waterfowl group and performing body size measurement influence correction on the body size measurement data associated data to obtain body size measurement influence correction data; and the execution module is used for sending the waterfowl body size measurement model to the cloud platform so as to execute unconstrained batch waterfowl body size measurement. The invention has the effect of improving the body size measurement efficiency.

A water-plowing front wall is mounted crosswise across the breast of a buoyant floating waterfowl decoy for improving jerk-line life-like animation of the decoy. The water-plowing front wall has a broad width about the same as or twice as great as the decoy's body-width at the waterline. The water-plowing front wall has a low elevation that, when the decoy is at rest, the low elevation is submerged below the waterline. And, the water-plowing front wall has a high elevation that, when the decoy is at rest, is about level with the waterline or the waterline is about half-way up the front wall. High front wall produces a zig-zag swimming return, while the low front wall in combination with a diving plane produces a head-bobbing diving return.