Method and device for improving artificial incubation success rate of green-head diving duck eggs

Abstract

The invention discloses a method and device for improving the artificial incubation success rate of green-head diving duck eggs. According to the method, the egg checking step and the weighing step are added in the hatching period of the green-head diving duck eggs, the egg checking step is to obtain an embryo map in an egg candling mode, the weighing step is to weigh the green-head diving duck eggs for at least two consecutive days, and the actual weight loss ratio is calculated; and comparing the obtained embryo map and the actual weight loss ratio with a pre-constructed embryo development sequence map database and a pre-constructed theoretical weight loss ratio database during the hatching period of the green-head diving duck eggs, and generating an evaluation conclusion and a regulation and control suggestion according to a preset logic matrix so as to timely discover the hatching development condition of the green-head diving duck eggs. Timely adjustment is performed according to the regulation suggestions, and finally the hatching success rate is increased. Based on the embryo development map and the weightlessness model of the green-head diving duck specificity, accurate development regulation and control of the hatching process of the green-head diving duck eggs are achieved, the hatching rate of the fertilized eggs is stably increased to 80% or above, the technical threshold is lowered, and practicability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Aythya baeri incubation, in particular to a method and device for improving the success rate of artificial incubation of Aythya baeri eggs. BACKGROUND

[0002] Aythya baeri belongs to the Anseriformes Anatidae Aythya, is a national key protected wild animal in China, is also listed as a critically endangered (CR) level in the International Union for Conservation of Nature (IUCN) Red List, and the global mature individual number is less than 700 in 2019. In 2022, the first artificial population of Aythya baeri in China was established in Beijing Zoo, and the number of artificial population has reached more than 100. Improving the reproductive success rate is the key to prevent the extinction of the species. At present, effective artificial incubation technology is urgently needed in two scenarios: one is the emergency rescue of abandoned nest eggs in the wild (due to factors such as waterlogging, human disturbance, and natural enemies), and the other is the population rejuvenation and expansion of zoos, wetland protection areas and artificial breeding bases to improve the hatching rate of Aythya baeri.

[0003] Although the existing general incubation technology has formed a standardized incubation procedure, including fixed temperature and humidity curve, egg turning program, egg airing time and weight loss rate reference range, these procedures are mainly based on the experience of related species and do not take into account the special needs of endangered species. For example, the current artificial incubation technology makes the hatching rate of Aythya baeri not higher than 60%. Moreover, the effectiveness of the existing incubation work is highly dependent on the personal experience and intuition of the technicians, and lacks scientific quantification and standardized operation guidance, especially when dealing with precious species such as Aythya baeri rescue eggs, this dependency is particularly evident. For example, the egg evaluation completely relies on the naked eye observation and experience judgment of the operator, and lacks a set of standardized embryonic development atlas of Aythya baeri as the "gold standard". This leads to the inability to accurately determine whether the embryo is developing normally at different ages, making it difficult to detect developmental retardation or stagnation early, missing the intervention opportunity, and the judgment standards of different operators are not the same, resulting in poor repeatability of the results.

[0004] In addition, although modern incubators have the functions of automatic temperature and humidity control, egg turning and environmental data recording, their control logic is based on universality and does not have built-in biological data or models of specific species (such as Aythya baeri). Its monitoring function is usually limited to environmental parameters (such as temperature and humidity in the box), and cannot automatically and integrally evaluate the physiological state of the egg itself (such as embryonic development and weight loss). For example, the eggshell structure, embryonic metabolic rate and gas exchange efficiency of Aythya baeri are significantly different from those of poultry. Simply applying the temperature and humidity curve and weight loss standard of poultry (such as 10%-15% throughout the process) cannot meet the optimal development needs of Aythya baeri, which is often the main reason for abnormal embryonic development, stillbirth and weak chicks.

[0005] And the prior art only provides a broad final weight loss range, lacks a fine-to-the-day weight loss trajectory model throughout the entire incubation cycle, and the overall moisture management is extensive, and the weight loss control is lagging. Humidity control is a "post-remedy", and when the weight loss deviates, the embryo may have been damaged. Prospective and precise moisture management cannot be achieved, resulting in large fluctuations in the hatching rate and healthy chick rate.

[0006] When airing eggs in the incubator, the heating is turned off and the door is opened, the temperature drops slowly, the stimulation to the embryos is weak and uneven (especially the eggs in the corners), and at the same time, the stable incubation environment in the box is severely damaged, the recovery period is long, and all embryos are affected. When airing eggs in the ordinary air environment, the temperature and humidity of the environment cannot be controlled, and the embryos are prone to suffer from heat stress or cold stress due to overcooling, overheating, excessive dryness or draught, causing irreversible damage.

[0007] In addition, weighing, egg inspection and environmental control are several separate operation links, and the data is recorded on paper or in different electronic spreadsheets, making it difficult to perform instant and correlated comprehensive analysis. Decision-making relies on the brain integration of fragmented information by technical personnel, and the hatching data is fragmented, resulting in low decision-making efficiency, low efficiency, errors, and the inability to form an efficient standardized process, resulting in a high dependence on a small number of experienced experts for successful incubation. The above-mentioned complex monitoring and control process requires a large amount of manpower to cooperate, and it is difficult to replicate and promote in basic units such as zoos and nature reserves, which restricts the overall efficiency of the Aythya baievskii population protection.

[0008] As can be seen, the above-mentioned existing incubation method lacks specific biological data for the Aythya baievskii and cannot meet the special incubation needs of this endangered species. The present application is based on this, and a method and device for improving the artificial incubation success rate of Aythya baievskii eggs are created, which can detect problems in the incubation process of Aythya baievskii in a timely manner based on the Aythya baievskii embryo development atlas and weight loss model, and give intelligent control suggestions, greatly improving the hatching rate and reproductive success rate of Aythya baievskii, and becoming the current industry's much-needed improvement target. SUMMARY

[0009] The technical problem to be solved by the present application is to provide a method for improving the artificial incubation success rate of Aythya baievskii eggs, which can detect problems in the incubation process of Aythya baievskii in a timely manner based on the Aythya baievskii embryo development atlas and weight loss model, and give intelligent control suggestions, greatly improving the hatching rate and reproductive success rate of Aythya baievskii, thereby overcoming the deficiencies of the existing artificial incubation method of Aythya baievskii eggs.

[0010] To solve the above technical problems, the application provides a method for improving the artificial hatching success rate of Aythya baieviana eggs, which comprises the following steps: increasing the egg inspection and weighing steps during the hatching of the Aythya baieviana eggs, obtaining an embryo atlas by egg photography during the hatching of the Aythya baieviana eggs, weighing the Aythya baieviana eggs for at least two consecutive days, calculating the actual weight loss rate, and then comparing the obtained embryo atlas and actual weight loss rate with a pre-constructed embryo development sequence atlas database and a theoretical weight loss rate database of the Aythya baieviana young ducklings during hatching, generating an evaluation conclusion and a control suggestion according to a preset logical matrix, so as to timely find the hatching development condition of the Aythya baieviana eggs and timely adjust according to the control suggestion, and finally improve the hatching success rate.

[0011] Further improvement, the constructed embryo development sequence atlas database of the Aythya baieviana young ducklings during hatching is obtained by photographing the embryos of the Aythya baieviana eggs hatched for 0-26 days by egg photography;

[0012] The constructed theoretical weight loss rate database of the Aythya baieviana young ducklings during hatching is calculated by an Aythya baieviana egg weight and hatching day regression model.

[0013] Further improvement, the Aythya baieviana egg weight and hatching day regression model is obtained from the egg weight loss curves of the Aythya baieviana young ducklings hatched successfully in the past years, and the Aythya baieviana egg weight and hatching day regression model is as follows:

[0014] y=-0.2527x+43.68 (R²=0.9992)

[0015] Wherein, x is the hatching day, and y is the egg weight.

[0016] Further improvement, the preset logical matrix comprises:

[0017] (1) Normal state

[0018] Development comparison: the embryo development characteristics and the corresponding hatching day standard atlas in the database have a coincidence degree of ≥90%;

[0019] Weight loss analysis: the deviation of the actual weight loss rate and the theoretical weight loss rate is within ±1.5%;

[0020] Evaluation conclusion: the embryo development and weight loss state are normal;

[0021] Control suggestion: no adjustment is needed, and the current parameters are continued to be used for hatching;

[0022] (2) Slight abnormality, suggestion for observation

[0023] Determination condition: any one of condition A and condition B is met;

[0024] Condition A: Embryonic development characteristics are consistent with the corresponding standard hatch day atlas in the database, with a deviation of 85%-90%, but the weight loss is normal.

[0025] Condition B: The actual weight loss rate deviates from the theoretical weight loss rate by ±1.5% to ±3.0%, but the development is normal.

[0026] Evaluation Conclusion: The embryo development is slightly delayed or the weight loss rate deviates slightly.

[0027] Regulation Suggestions: No adjustment of incubation parameters is recommended, and observation should be strengthened, focusing on the development trend of the evaluation period.

[0028] (Three) Need active intervention

[0029] (I) Weight loss too fast

[0030] Determination condition: The actual weight loss rate is greater than the theoretical weight loss rate, and the deviation is >3.0%, and the embryonic development state is normal or delayed.

[0031] Evaluation Conclusion: The egg loses weight too fast, and there is a risk of dehydration.

[0032] Regulation Suggestions: Immediately increase the humidity of the incubation environment, and consider a short 1-2 second warm water spray or transfer to a high humidity gradient incubator for incubation before the next egg airing.

[0033] (II) Weight loss too slow

[0034] Determination condition: The actual weight loss rate is less than the theoretical weight loss rate, and the deviation is <3.0%, and the embryonic development state is normal or delayed.

[0035] Evaluation Conclusion: The egg loses weight insufficiently, which will limit the embryonic development space or cause suffocation later.

[0036] Regulation Suggestions: Appropriately reduce the humidity of the incubation environment to accelerate water evaporation, and consider increasing the airing frequency to twice a day to improve gas exchange.

[0037] (III) Development delay with abnormal weight loss

[0038] Determination condition: The embryonic development characteristics are consistent with the corresponding standard hatch day atlas in the database, with a deviation of <85%, and accompanied by abnormal weight loss of the above (I) or (II) type.

[0039] Evaluation Conclusion: The embryonic development is delayed, and accompanied by abnormal weight loss, and the incubation environment is not suitable.

[0040] Regulation Suggestions: Adjust the humidity according to the above (I) or (II) regulation suggestions, and strictly check and ensure that the incubation temperature is stable at 37.5±0.1℃.

[0041] (Four) Serious abnormalities / high-risk alarms

[0042] Determination condition: any one of conditions C, D and E is met;

[0043] Condition C (development stagnation / death): in two consecutive assessments, the embryo development image shows no progress or shows obvious death characteristics such as blood ring, sticky shell, etc.;

[0044] Condition D (severe weight loss out of control): the deviation of the actual weight loss rate from the theoretical weight loss rate is greater than 5%, and the development is severely delayed;

[0045] Condition E (complex severe problem): development is severely delayed and accompanied by severe weight loss abnormalities;

[0046] Evaluation conclusion: high risk of embryo development stagnation or serious imbalance of hatching environment;

[0047] Control suggestion: issue a high-risk alarm, and recommend immediate artificial egg inspection to confirm embryo activity; if it is confirmed to be alive, an emergency intervention program needs to be implemented: thoroughly check the accuracy of the temperature and humidity sensor, adjust the humidity to the theoretical median value, and prepare an artificial delivery plan; and the egg is managed separately.

[0048] Further improvement also includes the step of developing an artificial incubation scheme for wild abandoned nest eggs of the Garganey, and the specific steps are:

[0049] (1) Obtain wild abandoned nest eggs of the Garganey, weigh and inspect the eggs by egg photography, obtain the embryo atlas at the time of inspection, and compare the embryo atlas with the constructed embryo development sequence atlas database to preliminarily determine the incubation days of the wild abandoned nest eggs of the Garganey;

[0050] (2) According to the preliminary determination result, determine the initial incubation parameters, and incubate the wild abandoned nest eggs of the Garganey according to the initial incubation parameters;

[0051] (3) After artificial incubation, inspect the eggs and weigh them during daily egg airing, and calculate the actual weight loss rate;

[0052] (4) According to the egg inspection atlas and the actual weight loss rate, compare with the corresponding incubation day data in the constructed embryo development sequence atlas database and the theoretical weight loss rate database to further determine whether the incubation parameters are appropriate, and if not, adjust in time to finally develop an incubation scheme for wild abandoned nest eggs.

[0053] As another improvement of the present application, the present application also provides an egg inspection and airing device for improving the artificial incubation success rate of Garganey eggs. The device comprises a box body and a weighing mechanism, an egg inspection mechanism and an egg airing mechanism arranged in the first cavity of the box body,

[0054] The weighing mechanism comprises a weighing sensor and an egg tray arranged on the upper part thereof, the egg tray is used for placing the blue-headed diving duck eggs to be detected, and the weighing sensor is used for collecting the weight of the blue-headed diving duck eggs;

[0055] The egg checking mechanism comprises an egg checking shell, an egg illuminating lamp and a high-definition camera mechanism, the egg checking shell is covered above the egg tray, and the front side thereof is provided with an egg taking and placing opening for taking and placing the blue-headed diving duck eggs, the egg illuminating lamp is arranged on the top of the egg checking shell directly above the egg tray, and the camera of the high-definition camera mechanism is fixed on the inner side wall of the egg checking shell and used for shooting the embryo atlas when the blue-headed diving duck eggs are illuminated by the egg illuminating lamp;

[0056] The egg airing mechanism comprises an egg airing rack, and each of the egg airing racks is used for placing one blue-headed diving duck egg.

[0057] Further improvement, the egg illuminating lamp comprises three, which are arranged on the top end and two side walls inside the egg checking shell respectively, and are used for illuminating the blue-headed diving duck eggs on the egg tray from the top and two sides, and the inner wall of the egg checking shell is paved with black light-absorbing material; and / or,

[0058] The egg airing mechanism further comprises an egg airing support arranged at the lower part of the egg airing rack, and the egg airing support is provided with a slide for horizontal sliding of the egg airing rack.

[0059] Further improvement, the box body further comprises an environment control mechanism, the environment control mechanism comprises a turbo fan, a PTC ceramic heating sheet and a temperature sensor, the turbo fan and the PTC ceramic heating sheet are arranged at the lower part of the second cavity of the box body, the turbo fan is located at the front side of the PTC ceramic heating sheet, the back side of the PTC ceramic heating sheet is provided with an air outlet channel leading into the space above the first cavity, the lower part of the side wall of the second cavity corresponding to the air inlet side of the turbo fan is provided with an air return grille, and the side wall of the box body opposite to the air return grille is provided with an air inlet grille, so that the turbo fan and the PTC ceramic heating sheet are used for adjusting the temperature of the first cavity, and the temperature sensor is arranged inside the first cavity and is used for detecting the internal temperature of the first cavity.

[0060] Further improvement, the box body further comprises a main control mechanism and a man-machine interaction mechanism connected thereto, the main control mechanism is located in the third cavity of the box body, the third cavity is independently arranged with the first cavity and the second cavity, the man-machine interaction mechanism is arranged on the side wall of the box body corresponding to the third cavity, the main control mechanism is used for receiving and analyzing the collected data of the weighing sensor and the high-definition camera mechanism, displaying the analysis and judgment results through the man-machine interaction mechanism, and realizing the internal temperature control of the first cavity through the connection with the environment control mechanism.

[0061] Further improvement, the master mechanism includes a data acquisition module, a data storage module, a data analysis module and a result generation module, the data acquisition module is used for receiving and storing the collected data of the weighing sensor and the high-definition camera mechanism, and transmitting to the data analysis module; the data storage module is used for storing the embryo development sequence atlas database and the theoretical weight loss rate database during the incubation of the young duckling of the Gagei Aythya; the data analysis module is used for comparing and analyzing the data transmitted by the data acquisition module with the embryo development sequence atlas database and the theoretical weight loss rate database in the data storage module; the result generation module is used for generating evaluation conclusions and control suggestions according to the comparison and analysis results of the data analysis module, and displaying through the man-machine interaction mechanism.

[0062] After adopting such design, the present application has at least the following advantages:

[0063] 1. The hatching rate and healthy duckling rate are greatly improved:

[0064] By applying the embryo development atlas and weight loss model specific to Gagei Aythya, the present application realizes precise development regulation of the Gagei Aythya egg incubation process, ensures the health of the embryo, makes the hatched duckling more vigorous, and significantly improves the healthy duckling rate, fundamentally solving the problems of development abnormalities and death caused by parameter mismatch. The method changes the fuzzy decision-making mode relying on naked eye observation and personal experience, generates scientific quantitative indicators and control suggestions through synchronous collection and fusion analysis of weight loss and development data, so that each decision has a basis, the results are traceable and repeatable, and the fertilized egg hatching rate can be stably improved to more than 80%, with excellent technical effect.

[0065] 2. Breakthrough in rescue incubation ability:

[0066] Through the initialization artificial incubation scheme and whole-process monitoring developed for the field rescue of abandoned nest eggs, complex situations with uncertain development state can be dealt with, greatly improving the rescue success rate of such valuable germplasm resources, which has key significance for endangered species protection.

[0067] 3. The device is "de-skilled", greatly reducing the technical threshold:

[0068] The intelligent egg checking and airing device simplifies the complex "weighing-egg checking-recording-analysis-decision" process into standardized operations of "putting in-reading-executing", which is efficient and safe. Even inexperienced technical personnel can perform high-level incubation management, solving the core pain point of lack of professional personnel in grassroots units.

[0069] 4. Realize man-machine division, greatly save manpower:

[0070] Automatic data collection, recording and analysis, free technical personnel from tedious, repetitive tasks, one person can easily complete the task that needs to be coordinated by multiple people in the past, significantly improve work efficiency and reduce labor costs.

[0071] 5. Maximum protection of embryo safety:

[0072] Through the setting of the environment control mechanism in the egg inspection and airing device, a constant and optimal airing environment (25-28°C) is provided for the airing of eggs, which truly simulates the environmental changes experienced by the eggs when the experienced parent birds leave the nest, provides uniform and effective cold stimulation and ventilation for the embryos, especially benefits the corner or weak embryos, promotes their healthy development, completely avoids the risk of heat stress and cold stress caused by environmental fluctuations in traditional airing in the air, and also avoids the interference on the core incubation environment caused by traditional airing through the main incubator, thereby providing a more stable development environment for all embryos.

[0073] 6. Practicality and generalizability:

[0074] The egg inspection and airing device can be used as an independent unit with any existing incubator, without the need to eliminate old equipment, and the transformation cost and deployment threshold are low. The standardized process and low technical threshold requirement make it very easy to quickly replicate and promote in various breeding bases such as zoos, wetland protection areas, rescue centers, etc., which can effectively improve the breeding efficiency and quality.

[0075] 7. Industrial value is highlighted, and the development of the industry is promoted:

[0076] The present application first establishes a quantitative technical standard for artificial incubation of the Gunning duck, which is expected to become an industry technical specification for artificial breeding of the species. BRIEF DESCRIPTION OF DRAWINGS

[0077] The above is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the following will be further described in detail in combination with the drawings and specific embodiments.

[0078] Figure 1 is the atlas of the 0-9 days in the embryo development sequence atlas database of the Gunning duck hatchling during incubation constructed by the present application.

[0079] Figure 2 is the atlas of the 10-18 days in the embryo development sequence atlas database of the Gunning duck hatchling during incubation constructed by the present application.

[0080] Figure 3 is the atlas of the 19-26 days in the embryo development sequence atlas database of the Gunning duck hatchling during incubation constructed by the present application.

[0081] Figure 4is the regression model diagram of the weight of the eggs of the tufted duck and the number of hatching days constructed in the application.

[0082] Figure 5 is the step flow chart of the method for improving the artificial hatching success rate of the eggs of the tufted duck.

[0083] Figure 6 is the step flow chart of the method for improving the artificial hatching success rate of the eggs of the tufted duck.

[0084] Figure 7 is the structural schematic diagram of the egg checking and airing device for improving the artificial hatching success rate of the eggs of the tufted duck.

[0085] Figure 8 is the structural perspective schematic diagram of the egg checking and airing device for improving the artificial hatching success rate of the eggs of the tufted duck.

[0086] Figure 9 is the structural schematic diagram of the main control mechanism of the egg checking and airing device for improving the artificial hatching success rate of the eggs of the tufted duck. DETAILED DESCRIPTION

[0087] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0088] I. Construction of a unique incubation database for the tufted duck

[0089] From 2019 to 2025, the Beijing Zoo carried out research on artificial incubation technology for rare and endangered tufted ducks, constructed an egg embryo development atlas during incubation of the tufted duck and an artificial incubation technology system for the species, including standard processes such as preservation and transportation, incubation temperature and humidity, egg turning, egg airing, and egg checking, as well as key parameters such as egg weight loss.

[0090] Among them, by checking the eggs and taking photos of the egg embryos during 0-26 days of the tufted duck, the first innovative construction of the embryo development sequence atlas database during the incubation of the young duckling of the tufted duck was carried out, as shown in the accompanying Figures 1 to 3 The corresponding daily egg checking atlas in the accompanying Figures 1 to 3 The characteristics of the 0-26 day embryo development of the tufted duck are described as follows:

[0091] On the 0th day of incubation, when checking the eggs under strong light, the high permeability of the egg can be seen, and the whole egg color is transparent and uniform.

[0092] On the first day of incubation, the egg is highly permeable and the whole egg is still relatively transparent. The yolk shadow can be seen faintly.

[0093] On the second day of incubation, the egg is still highly permeable and there is no obvious change compared with the first day.

[0094] On the third day of incubation, the egg disc projection can be observed. The egg disc projection is located on the surface of the yolk and moves with the egg disc. The egg disc projection is red in color. The yolk projection is clear. Fine blood vessels can be seen, and the embryo has not formed a clear spider web.

[0095] On the fourth day of incubation, there is a significant change compared with the third day. The spider web embryo can be observed when the egg is examined. The blood vessels are clear and obvious. Careful observation can see the heartbeat. The embryo occupies 2 / 3 of the yolk projection. At this time, the yolk projection is clear, and the spider web embryo moves with the yolk. The boundary between yolk and albumen is obvious.

[0096] On the fifth day of incubation, the yolk projection is close to the sharp end of the egg. The embryo develops rapidly, and the spider web blood vessels almost cover the surface of the yolk projection. The blood vessels are fine and obviously thickened, with obvious branches. The heartbeat of the embryo can still be seen.

[0097] On the sixth day of incubation, the yolk projection has reached the sharp end of the egg. At this time, the spider web embryo has developed and the blood vessels are abundant, forming a rich blood vessel network. The fetus is slightly brighter around, and when the egg is shaken, the fetus can be observed to move with the shaking. When the egg is still, the fetal movement can be observed to be relatively slight. The blood vessel network of the embryo has not reached the dorsal side. From the side, the edge of the blood vessel network can be seen to reach about half of the egg.

[0098] On the seventh day of incubation, the yolk projection almost reaches the edge of the sharp end of the egg, and the blood vessel network almost covers the surface of the yolk projection. From the side of the egg, it can be observed that the blood vessel network has reached 1 / 2 of the egg.

[0099] On the eighth day of incubation, the fetus can be seen to sink and float in the amniotic fluid. Black eye spots can be seen. On this day, the blood vessel area has crossed the midline of the egg. On the dorsal side, the upper part of the blood vessel area is closer together, and the development is faster than the lower part, which is the main feature of this day. The blood vessel network projection looks virtual but is clear. The blood vessel area near the air chamber is growing towards each other. The lower end is bright.

[0100] On the ninth day of incubation, it can be observed that the blood vessel network under the dorsal air chamber is closer than yesterday, and the color of the blood vessel network is darker and clearer than yesterday, and the blood vessels are thicker. The embryo is still sinking and floating from the front.

[0101] On the tenth day of incubation, the blood vessel network near the air chamber on the dorsal side of the egg has not completely closed. Today, the observation of the blood vessel network from the dorsal side and the side is similar to the ninth day of incubation. But when the egg is examined from the front, the amplitude of the embryo's up and down movement increases, and the embryo is more active.

[0102] On day 11 of incubation, the vascular network near the real end of the dorsal side of the egg is closed (allantoic closure). The yolk shadow is visible in the middle of the egg when the egg is candled. The yellowish shadow is the yolk shadow.

[0103] On day 12 of incubation, the blood vessels on the dorsal side of the egg are darker and more prominent. The blood vessel shadow is more distinct when the egg is candled. The yolk shadow on both sides of the egg is also darker. The air cell is also observed to be larger. Fetal movement is observed, but the movement is not as "fluffy" and is more forceful, but the frequency appears to be reduced.

[0104] On day 13 of incubation, the yolk shadow is observed to be closer to the middle of the egg from the dorsal side of the egg. The blood vessels are prominent and bright in color on the dorsal side. The projection of the embryo is observed on the ventral side of the egg, and forceful fetal movement is observed.

[0105] On day 14 of incubation, the projections of the embryo and the yolk are observed in the middle of the egg, and the upper and lower portions of the egg are more transparent. The projection of the embryo is dark, which is believed to be the feather. The fetal movement is forceful.

[0106] On day 15 of incubation, the shadow of the embryo in the egg is larger than yesterday, occupying about half of the face.

[0107] On day 16 of incubation, the dark shadow in the egg almost reaches the pointed end. The blood vessels are still visible on the side near the air cell.

[0108] On day 17 of incubation, the shadow in the egg has completely covered the pointed end, and the shadow on the air cell side has also expanded, but blood vessels are visible on the air cell side. The fetal movement is still apparent, but the displacement is smaller due to the increased size of the embryo.

[0109] On day 18 of incubation, the air cell is observed to be larger when the egg is candled. The pointed end is completely dark, and the blood vessels are visible about 1 cm below the air cell, with one side being bright red and the other side being slightly darker.

[0110] On day 19 of incubation, when the egg is candled, it is observed that the shadow of the embryo on one side almost reaches the lower edge of the air cell, and there is more space on the other side. The fetal movement is observed to be apparent and active.

[0111] On day 20 of incubation, compared to day 19 of incubation, the blood vessels are observed to be darker and thicker.

[0112] On day 21 of incubation, the air cell is observed to be larger and the edge is more inclined. The embryo almost touches the lower edge of the air cell during fetal movement, but it has not broken through the air cell boundary.

[0113] On day 22 of incubation, the embryo has broken through the boundary of the air cell during fetal movement, but it has not broken through.

[0114] On day 23 of incubation, the air cell is more tilted. A few dark blood vessels can still be seen.

[0115] On day 24 of incubation, the air cell is more tilted, and almost no dark red blood vessels can be seen in the egg.

[0116] On day 25 of incubation, the fetus's body has reached the air cell and turned to lung respiration. The egg can be placed close to the ear to hear the chick's call, and the fetus's beak can also be heard pecking the shell.

[0117] On day 26 of incubation, the air cell end pecks the shell and has broken through. The next step will continue to peck the shell until hatching.

[0118] Through the study of the weight loss curve of the successful hatching of the green-headed diving duck hatchlings in previous years, the regression model of the egg weight and incubation days of the green-headed diving duck is successfully derived: y = -0.2527x + 43.68 (R² = 0.9992), where x is the incubation days and y is the egg weight. As shown in the attached Figure 4 Theoretical weight loss rate database of green-headed diving duck hatchlings during incubation is obtained using the regression model of green-headed diving duck egg weight and incubation days.

[0119] II. Based on the green-headed diving duck embryo development atlas and weight loss model, a reasonable logical matrix classification system is preset

[0120] According to the research results in previous years, by combining the qualitative data of embryo development images with the quantitative data of weight loss rate, a set of gradient, operable, and reasonable logical matrix classification system from "normal monitoring" to "high-risk alarm" is formed, so that this method can surpass simple data display and truly realize expert-level diagnosis and intelligent control. The core classification standards are as follows:

[0121] 1. Normal state

[0122] Development comparison: the standard atlas of embryo development characteristics and the current incubation days is consistent ≥ 90%.

[0123] Weight loss analysis: the deviation between the actual weight loss rate and the theoretical weight loss rate is within ±1.5%.

[0124] Evaluation conclusion: "embryo development and weight loss state are normal."

[0125] Control suggestion: "no adjustment, continue to incubate according to the current parameters."

[0126] 2. Slight abnormality, observation is recommended

[0127] Determination conditions (any one can be met):

[0128] Condition A (slight developmental delay): the development comparison is consistent between 85%-90%, but the weight loss is normal.

[0129] Condition B (Minor deviation in weight loss): Deviation in weight loss rate between ±1.5% and ±3.0%, but with normal development.

[0130] Evaluation Conclusion: "Embryo development is slightly delayed" or "There is a minor deviation in the weight loss rate from the theoretical value".

[0131] Regulation Recommendation: "It is recommended to strengthen observation, focusing on the development trend in the next evaluation period. The incubation parameters can be temporarily adjusted."

[0132] 3. Active intervention is required

[0133] Decision Conditions and Recommendations:

[0134] (1) Excessive weight loss

[0135] Decision Condition: Actual weight loss rate is greater than the theoretical weight loss rate, with a deviation of >3.0%, and the embryo development state is normal or delayed;

[0136] Evaluation Conclusion: "Ovum loses weight too fast, with the risk of dehydration."

[0137] Regulation Recommendation: "Immediately increase the humidity of the incubation environment (such as recommended increase of 3%-5% RH). Consider short (1-2 seconds) warm water spray or transfer to a high humidity gradient incubator for incubation before the next airing of eggs."

[0138] (2) Weight loss is too slow

[0139] Decision Condition: Actual weight loss rate is less than the theoretical weight loss rate, with a deviation of <3.0%, and the embryo development state is normal or delayed;

[0140] Evaluation Conclusion: "Ovum weight loss is insufficient, which may lead to limited embryo development space or late asphyxia."

[0141] Regulation Recommendation: "Appropriately reduce the humidity of the incubation environment (recommended reduction of 2%-4% RH) to accelerate water evaporation, and consider increasing the airing frequency to twice a day to improve gas exchange."

[0142] (3) Development delay with abnormal weight loss

[0143] Decision Condition: Development alignment degree is <85%, and accompanied by any type of abnormal weight loss.

[0144] Evaluation Conclusion: "Embryo development is delayed, accompanied by abnormal weight loss, and the incubation environment may not be suitable."

[0145] Regulation Recommendation: "First, adjust the humidity according to the recommendations in (1) or (2) above. At the same time, strictly check and ensure that the incubation temperature is stable at a core temperature of 37.5°C ±0.1°C."

[0146] 4. Serious abnormalities / high-risk alarm

[0147] Determination condition (any of the following conditions can be met):

[0148] Condition C (development arrest / death): In two consecutive assessments, the embryo development image shows no progress or shows obvious signs of death such as blood ring, sticky shell, etc.

[0149] Condition D (severe weight loss out of control): The absolute value of weight loss rate deviation is greater than 5%, and the development is severely delayed.

[0150] Condition E (complex severe problem): Severe development delay (conformity <80%) accompanied by severe weight loss abnormalities.

[0151] Evaluation conclusion: "high risk of embryo development arrest" or "severe imbalance of hatching environment".

[0152] Regulation suggestion: "high risk alarm! It is recommended to perform artificial egg inspection immediately to confirm the viability of the embryo. If it is confirmed to be alive, an emergency intervention plan needs to be implemented: thoroughly check the accuracy of the temperature and humidity sensor, adjust the humidity to the theoretical median value, and prepare possible artificial delivery plans. The egg needs to be managed separately."

[0153] III. Method for improving the success rate of artificial incubation of Aythya baieviana eggs

[0154] Referring to the accompanying Figure 5 , the method is: increasing the egg inspection and weighing steps during the incubation of Aythya baieviana eggs, the egg inspection step is to obtain the embryo atlas by egg inspection, and the weighing step is to weigh the weight of the Aythya baieviana eggs at least for two consecutive days, and calculate the actual weight loss rate. Then compare the obtained embryo atlas and actual weight loss rate with the pre-constructed embryo development sequence atlas database and theoretical weight loss rate database of Aythya baieviana young during incubation, generate evaluation conclusion and regulation suggestion according to the above-mentioned preset logic matrix, for timely finding the hatching development situation of the Aythya baieviana eggs, and making timely adjustment according to the regulation suggestion, and finally improving the hatching success rate. See Example 1 below for specific examples.

[0155] IV. Method for developing artificial incubation scheme for wild abandoned nest eggs

[0156] Referring to the accompanying Figure 6As shown, the method is: obtaining wild abandoned nest eggs of Gunning teal, weighing and checking the eggs in the way of egg inspection, obtaining the embryo atlas at the time of checking the eggs, comparing the embryo atlas with the constructed embryo development sequence atlas database to preliminarily judge the incubation days of the wild abandoned nest eggs of Gunning teal; according to the preliminary judgment result, determining the initial incubation parameters, and artificially incubating the wild abandoned nest eggs of Gunning teal according to the initial incubation parameters; after artificial incubation, checking the eggs and weighing during the egg airing period every day, and calculating the actual weight loss rate; then, according to the egg checking atlas and the actual weight loss rate, comparing the corresponding incubation day data in the constructed embryo development sequence atlas database and the theoretical weight loss rate database, further determining whether the incubation parameters are suitable, and if not, adjusting in time, and finally formulating the incubation scheme of the wild abandoned nest eggs. See Example 2 below for specific examples.

[0157] Five, egg checking and airing device for improving the success rate of artificial incubation of Gunning teal eggs

[0158] Referring to the accompanying drawings Figure 7 and 8 As shown, the egg checking and airing device includes a box body 1 and a weighing mechanism, an egg checking mechanism and an egg airing mechanism arranged in the first cavity 11 of the box body 1.

[0159] The weighing mechanism includes a weighing sensor 12 and an egg tray 13 arranged on the upper part thereof. The egg tray 13 is used to place the Gunning teal eggs to be detected. The weighing sensor 12 adopts a high-precision weight sensor to accurately collect the weight of the Gunning teal eggs.

[0160] The egg checking mechanism includes an egg checking shell 14, an egg inspection lamp 15 and a high-definition camera mechanism 16. The egg checking shell 14 is covered above the egg tray 13, and the front side thereof is provided with a taking and placing opening for taking and placing Gunning teal eggs. The egg inspection lamp 15 is arranged on the top of the egg checking shell directly above the egg tray 13, and the camera of the high-definition camera mechanism 16 is fixed on the rear inner side wall of the egg checking shell 14, which is used to shoot the embryo atlas when the Gunning teal eggs are illuminated by the egg inspection lamp 15. Preferably, the egg inspection lamp 15 includes three, which are arranged on the top end and the two side walls inside the egg checking shell 14, respectively, for illuminating the Gunning teal eggs on the egg tray 13 from the top and the two sides, and the inner wall of the egg checking shell 14 is paved with black light-absorbing material to reduce the internal temperature of the egg checking shell and take clearer atlas. The egg inspection lamp 15 adopts LED lamp beads that only emit light but not heat to reduce the influence on the eggs. The high-definition camera mechanism 16 adopts a self-focusing camera that can automatically and clearly shoot the egg embryo image.

[0161] The egg airing mechanism comprises an egg airing rack 17, which is composed of a plurality of egg airing cells 171, and each of the egg airing cells 171 is used for placing one egg of the tufted duck. According to the average value of the short diameter of the egg of the tufted duck being 38.42±1.12 mm, the diameter of each egg position is designed to be 4.5-5.0 cm, and according to 50 egg positions (5x10), the size of the egg airing rack 17 is (22.5-25) cm x (45-50) cm. More preferably, the egg airing mechanism further comprises an egg airing support 18 arranged at the lower part of the egg airing rack 17, and the egg airing support 18 is provided with a slide 181 for horizontally sliding the egg airing rack 17, so as to facilitate the overall movement of the egg airing rack, and facilitate the placing and taking of the eggs. Of course, the horizontal sliding of the egg airing rack relative to the egg airing support can be realized by using any existing sliding mechanism, and the present application is not limited in this regard.

[0162] More preferably, the box body 1 further comprises an environment regulating mechanism. The environment regulating mechanism comprises a turbo fan 21 and a PTC ceramic heating sheet 22. The turbo fan 21 and the PTC ceramic heating sheet 22 are arranged at the lower part of the second cavity 19 of the box body 1, the turbo fan 21 is located at the front side of the PTC ceramic heating sheet 22, the back side of the PTC ceramic heating sheet 22 is provided with an air outlet 23 which penetrates into the space above the first cavity, for inputting the air with the temperature adjusted by the PTC ceramic heating sheet 22 into the first cavity 11. The lower part of the side wall of the second cavity 19 corresponding to the air inlet side of the turbo fan 21 is provided with an air return grille 24, and the side wall of the box body 1 opposite to the air return grille 24 is provided with an air inlet grille 25, then the air inlet grille 25, the lower part of the first cavity 11, the air return grille 24, the turbo fan 21, the PTC ceramic heating sheet 22, the air outlet 23, the upper part of the first cavity 11 form a circulation channel, and the temperature inside the first cavity 11 is adjusted by the turbo fan 21 and the PTC ceramic heating sheet 22, so as to provide a suitable egg airing environment for the first cavity 11.

[0163] More preferably, at least one temperature sensor is further arranged inside the first cavity 11, for detecting the internal temperature of the first cavity 11, and adjusting the air power of the turbo fan 21 or the temperature of the PTC ceramic heating sheet 22 in real time.

[0164] The box body 1 further comprises a main control mechanism 31 and a human-computer interaction mechanism 41 connected thereto. The main control mechanism 31 is located in a third cavity 30 of the box body 1, which is independently arranged with the first cavity 11 and the second cavity 19. The human-computer interaction mechanism 41 is arranged on the front side wall of the box body 1 corresponding to the third cavity 30, for displaying evaluation results and adjustment strategies, and receiving setting parameter values. The main control mechanism 31 is used for receiving and analyzing the collected data of the weighing sensor 12 and the high-definition camera mechanism 16, and displaying the analysis and judgment results through the human-computer interaction mechanism 41. The main control mechanism 31 further connects with the turbine fan 21, the PTC ceramic heating sheet 22 and the temperature sensor of the environment control mechanism, so as to realize the control of the internal temperature of the first cavity 11, ensure that the egg airing temperature is maintained at 25-28℃, and realize the circulating wind.

[0165] Referring to the drawings Figure 9 As shown in the drawings, the main control mechanism 31 further comprises a data acquisition module 311, a data storage module 312, a data analysis module 313 and a result generation module 314. The data acquisition module 311 is used for receiving and storing the collected data of the weighing sensor 12 and the high-definition camera mechanism 16, and transmitting to the data analysis module 313; the data storage module 312 is used for storing the embryo development sequence atlas database and the theoretical weight loss rate database during the incubation of the young duckling of the Shanhoutian duck; the data analysis module 313 is used for comparing and analyzing the data transmitted by the data acquisition module 311 with the embryo development sequence atlas database and the theoretical weight loss rate database in the data storage module 312; the result generation module 314 is used for generating evaluation conclusions and control suggestions according to the comparison and analysis results of the data analysis module 313, according to the preset logic matrix, and displaying through the human-computer interaction mechanism 41.

[0166] Six, Example 1

[0167] An animal park carries out an artificial breeding project of Shanhoutian duck, and has a batch of high-quality species eggs with known exact egg laying dates. The goal is to realize fine and data-based management, and improve the overall hatching rate and healthy chick rate.

[0168] 1. Standardized hatching:

[0169] After weighing and photographing all the species eggs, they are put into the incubator one by one for incubation, numbered, and aired at a fixed time every day.

[0170] 2. Intelligent egg airing evaluation:

[0171] The routine daily 10 o'clock starting airing eggs, the operator clicks on the egg and the airing device "start / boot", the main control mechanism control environment control mechanism to start, make internal environment adjustment to 27 ℃. Subsequently, the operator sequentially each egg in the incubator into the upper part of the weighing sensor 12 egg tray 13, weighing and image acquisition, and then placed in the airing rack 17 for airing. At the same time, the operator through the man-machine interaction mechanism corresponding to each egg number input into the main control mechanism, to get each egg embryo development and weight analysis data, these data will be automatically stored in the main control mechanism.

[0172] Take the 18th day egg Z05, egg Z08 as an example:

[0173] (1) for egg Z05: the weight loss rate data calculated after weighing is highly consistent with the theoretical weight loss rate data, and the embryo atlas is basically consistent with the standard atlas in the database. The evaluation result displayed at the human-computer interaction interface is "embryo development and weight loss state are normal", and the control suggestion is "no adjustment, continue to incubate according to the current parameters".

[0174] (2) for egg Z08: the weight loss rate data calculated after weighing shows that it loses weight too fast. At the same time, the embryo atlas comparison found that the embryo activity is slightly weak, and the blood vessel color is deep. The evaluation conclusion displayed at the human-computer interaction interface is: "the egg loses weight too fast, there is a risk of dehydration." It belongs to the level of active intervention, and the control suggestion is: "immediately increase the environmental humidity of subsequent incubation (such as increasing 3-5% RH); or consider spraying warm water on the egg before the next airing (for a short time of 1-2 seconds); or replace it to the high humidity gradient incubator for incubation, to slow down the water loss."

[0175] 3, effect and data value:

[0176] The breeder immediately took "humidification" measures for Z08. In the following evaluation, the weight loss rate of Z08 was effectively curbed, although it did not completely return to the theoretical curve, but successfully passed the last critical period and hatched smoothly.

[0177] 4, after the incubation, the system exported the complete data report of all eggs, including daily weight loss curve, key development node image, etc.

[0178] In this embodiment, by analyzing the data of Z08, the zoo optimized the emergency plan for similar situations, and accumulated valuable standardized data for future breeding work.

[0179] Seven, example 2

[0180] A wild wetland reserve found a discarded green-headed diving duck egg, which may be in the development period, the staff moved it to the artificial incubator, but due to the uncertainty of the exact egg laying date and the early development conditions, the incubation is uncertain. The method according to the present application is specifically operated as follows:

[0181] 1. Incubation and record:

[0182] After cleaning and disinfecting the rescued egg, it is numbered A01 and placed in the egg checking and airing device for weighing and photographing. The weight is 41.153g, and the development days of A01 egg are the 10th day according to the comparison of the photograph atlas. The most suitable temperature and humidity conditions for 10 days of incubation are used for incubation.

[0183] 2. First intelligent egg airing evaluation (estimated 11th day):

[0184] The next day, A01 egg is placed in the egg checking and airing device again for weighing and photographing. The weight is 40.80g, and the actual weight loss rate is 0.86%. Compared with the theoretical weight loss rate (0.614%) on the 11th day, the weight loss is slightly larger. According to the comparison of the photograph atlas and the embryo picture on the 11th day in the database, the degree of yolk sac membrane blood vessel convergence of A01 egg embryo is slightly lower than the standard, and the evaluation result is "slight delay of embryo development, and slight deviation of egg weight loss rate". The control suggestion is: "it is suggested to appropriately increase the humidity of the incubator in the subsequent incubation to promote normal weight loss; and ensure that the incubation temperature is stable at the standard value, and continue to observe."

[0185] 3. Effect verification:

[0186] The operator adjusts the humidity of the incubator according to the control suggestion. In the subsequent two days of egg airing evaluation, the system shows that the weight loss rate of the egg gradually returns to the theoretical curve, and the delayed development image disappears after comparison, and the evaluation result is "normal development". Finally, the wild rescued egg is successfully incubated into a healthy duckling.

[0187] This embodiment avoids the blindness of completely relying on experience by first objectively evaluating the uncertainty of the wild abandoned nest egg; it also continuously and accurately detects the development and weight loss of the egg in the middle of incubation, discovers the composite problem of "delayed development" and "abnormal weight loss" in time, and effectively corrects it by adjusting the humidity, avoiding the occurrence of dead fetus in the later period. The method combined with the use of the device can truly reduce the technical threshold, so that even the rescuers who lack experience in incubating green-headed diving ducks can also operate professionally according to the clear guidance of the system.

[0188] The application provides a method for improving the artificial hatching success rate of Aythya baieviana eggs, which can realize rapid and non-destructive detection of multiple eggs, greatly save labor, realize high efficiency and batch management. In addition, the method can accurately identify individual abnormal eggs in batch hatching and provide individualized regulation scheme to realize "one-to-one" nursing and improve the overall hatching rate.

[0189] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Those skilled in the art can make some simple modifications, equivalent changes or modifications by using the disclosed technical content, which are within the protection scope of the present application.

Claims

1. A method for improving the success rate of artificial hatching of Baer's Pochard eggs, characterized in that, The method involves adding egg inspection and weighing steps during the incubation of Baer's Pochard eggs. The egg inspection step involves obtaining an embryo map by candling the eggs. The weighing step involves weighing the Baer's Pochard eggs for at least two consecutive days and calculating the actual weight loss rate. Then, the obtained embryo map and actual weight loss rate are compared with a pre-constructed database of embryonic development sequence maps and theoretical weight loss rates during the incubation period of Baer's Pochard chicks. An evaluation conclusion and control suggestions are generated according to a preset logic matrix. This is used to promptly detect the incubation and development status of the Baer's Pochard eggs and make timely adjustments based on the control suggestions, ultimately improving the hatching success rate.

2. The method for improving the success rate of artificial hatching of Baer's Pochard eggs according to claim 1, characterized in that, The constructed database of embryonic development sequence maps of Baer's Pochard chicks during incubation was obtained by photographing Baer's Pochard eggs from day 0 to 26 of incubation using candling. The theoretical weight loss rate database for Baer's Pochard chicks during incubation was calculated using a regression model of Baer's Pochard egg weight and incubation days.

3. The method for improving the success rate of artificial hatching of Baer's Pochard eggs according to claim 2, characterized in that, The regression model for Baer's Pochard egg weight and incubation days was obtained from the egg weight loss curves of successfully hatched Baer's Pochard chicks during the incubation period over the years. The regression model for Baer's Pochard egg weight and incubation days is as follows: y=-0.2527x+43.68 (R²=0.9992) Where x is the number of incubation days and y is the egg weight.

4. The method for improving the success rate of artificial hatching of Baer's Pochard eggs according to claim 1, characterized in that, The preset logic matrix includes: (a) Normal state Developmental comparison: The embryonic developmental characteristics matched the corresponding incubation day standard atlas in the database with a similarity of ≥90%; Weightlessness analysis: The deviation between the actual weightlessness rate and the theoretical weightlessness rate is within ±1.5%; Assessment conclusion: Embryonic development and weight loss status are normal; Recommendation: No adjustments are needed; continue incubation using the current parameters. (ii) Minor abnormalities, observation is recommended. Judgment criteria: Either condition A or condition B must be met; Condition A: The embryonic development characteristics match the corresponding incubation day standard chart in the database by 85%-90%, but the weight loss is normal; Condition B: The deviation between the actual weight loss rate and the theoretical weight loss rate is between ±1.5% and ±3.0%, but development is normal; Assessment conclusion: The embryo's development is slightly delayed or the weight loss rate is slightly off. Recommendations: Do not adjust incubation parameters for the time being. It is recommended to strengthen observation and pay close attention to the development trend during the evaluation cycle. (iii) Proactive intervention is required (i) Rapid weightlessness Judgment criteria: The actual weight loss rate is greater than the theoretical weight loss rate, and the deviation is >3.0%, and the embryonic development status is normal or delayed; Assessment conclusion: The eggs are losing weight too quickly, posing a risk of dehydration; Control recommendations: Immediately increase the humidity of the incubation environment. Before the next egg drying, consider spraying the eggs with warm water for 1-2 seconds or transferring them to a high humidity gradient incubator for incubation. (ii) Weightlessness is too slow Judgment criteria: The actual weight loss rate is less than the theoretical weight loss rate, and the deviation is <3.0%, and the embryonic development status is normal or delayed; Assessment conclusion: Insufficient egg weight loss can lead to limited space for embryonic development or later-stage asphyxia; Control recommendations: Appropriately reduce the humidity of the incubation environment (e.g., reduce by 2%-4% RH) to accelerate moisture evaporation, and consider increasing the frequency of egg airing to twice a day to improve gas exchange; (iii) Developmental delay accompanied by abnormal weight loss Judgment criteria: The embryonic development characteristics match the corresponding incubation day standard atlas in the database by less than 85%, and are accompanied by weight loss abnormalities of type (i) or (ii) above; Assessment conclusion: The embryo is developing slowly and is accompanied by abnormal weight loss, indicating an unsuitable incubation environment; Control recommendations: Adjust humidity according to the control recommendations in (i) or (ii) above. At the same time, strictly check and ensure that the incubation temperature is stable at 37.5±0.1℃. (iv) Serious anomaly / high-risk alert Judgment criteria: It is sufficient to satisfy any one of the conditions C, D, and E; Condition C: In two consecutive assessments, the embryonic development images show no progress or exhibit obvious signs of death such as blood rings or shell adhesion; Condition D: The deviation between the actual weight loss rate and the theoretical weight loss rate is >5%, and the development is severely delayed; Condition E: Severe developmental delay accompanied by severe weight loss abnormalities; Assessment conclusion: High risk of embryonic developmental arrest or severe disruption of the hatching environment; Recommendations: Issue a high-risk alert and immediately perform artificial oocyte testing to confirm embryo viability; if viability is confirmed, implement an emergency intervention plan: thoroughly check the accuracy of the temperature and humidity sensors, adjust the humidity to the theoretical median value, and prepare a contingency plan for artificial delivery; and isolate and manage the oocyte separately.

5. The method for improving the success rate of artificial hatching of Baer's Pochard eggs according to any one of claims 1 to 4, characterized in that, It also includes the steps of developing an artificial incubation program for abandoned wild eggs, the specific steps of which are: (1) Obtain wild abandoned eggs of Baer's Pochard, weigh them and examine them by candling, obtain embryo map at the time of examination, compare the embryo map with the constructed embryo development sequence map database, and preliminarily determine the incubation days of the wild abandoned eggs of Baer's Pochard. (2) Based on the preliminary judgment results, determine the initial incubation parameters and artificially incubate the abandoned wild Baer's Pochard eggs according to the initial incubation parameters; (3) After artificial incubation, the eggs are examined and weighed during the daily drying period, and the actual weight loss rate is calculated; (4) Based on the egg test map and the actual weight loss rate, compare the corresponding incubation day data with the constructed embryo development sequence map database and theoretical weight loss rate database to further determine whether the incubation parameters are appropriate. If they are not appropriate, adjust them in time and finally formulate an incubation plan for wild abandoned eggs.

6. A device for inspecting and drying eggs to improve the success rate of artificial incubation of Baer's Pochard eggs, characterized in that, It includes the main body of the box and a weighing mechanism, an egg detection mechanism, and an egg drying mechanism installed in its first cavity. The weighing mechanism includes a weighing sensor and an egg tray disposed on its upper part. The egg tray is used to place the Baer's Pochard eggs to be tested, and the weighing sensor is used to collect the weight of the Baer's Pochard eggs. The egg inspection mechanism includes an egg inspection shell, a candling lamp, and a high-definition camera mechanism. The egg inspection shell covers the egg tray, and its front side is provided with a pick-up and drop-off port for picking up and dropping Baer's Pochard eggs. The candling lamp is located on the top of the egg inspection shell directly above the egg tray. The camera of the high-definition camera mechanism is fixed on the inner side wall of the egg inspection shell and is used to take embryo images when the candling lamp illuminates the Baer's Pochard eggs. The egg drying mechanism includes an egg drying rack, which consists of several egg drying compartments, each of which is used to place one Baer's Pochard egg.

7. The egg inspection and airing device for improving the success rate of artificial incubation of Baer's Pochard eggs according to claim 6, characterized in that, The egg-candling lamp comprises three lamps, respectively installed on the top and side walls inside the egg-candling shell, for illuminating the Baer's Pochard eggs on the egg tray from the top and sides, and the inner wall of the egg-candling shell is lined with a black light-absorbing material; and / or, The egg drying mechanism also includes an egg drying support set at the lower part of the egg drying rack, and the egg drying support is provided with a slide for the egg drying rack to slide horizontally.

8. The egg inspection and airing device for improving the success rate of artificial hatching of Baer's Pochard eggs according to claim 6 or 7, characterized in that, The main body of the box also includes an environmental control mechanism, which includes a turbine fan, a PTC ceramic heating element, and a temperature sensor. The turbine fan and the PTC ceramic heating element are located in the lower part of the second cavity of the main body of the box. The turbine fan is located in front of the PTC ceramic heating element. An air outlet duct is provided on the rear side of the PTC ceramic heating element, leading into the space above the first cavity. A return air grille is provided on the lower part of the side wall of the second cavity corresponding to the air inlet side of the turbine fan. An air inlet grille is provided on the side wall of the main body opposite to the return air grille. The turbine fan and the PTC ceramic heating element are used to adjust the temperature of the eggs inside the first cavity. The temperature sensor is located inside the first cavity and is used to detect the internal temperature of the first cavity.

9. The egg inspection and airing device for improving the success rate of artificial incubation of Baer's Pochard eggs according to claim 8, characterized in that, The main body of the box also includes a main control mechanism and a human-machine interaction mechanism connected thereto. The main control mechanism is located in the third cavity of the main body of the box. The third cavity is independently set from the first cavity and the second cavity. The human-machine interaction mechanism is set on the side wall of the main body of the box corresponding to the third cavity. The main control mechanism is used to receive and analyze the data collected by the weighing sensor and the high-definition camera mechanism, and to display the analysis and judgment results through the human-machine interaction mechanism. It is also connected to the environmental control mechanism to realize the internal temperature control of the first cavity.

10. The egg inspection and airing device for improving the success rate of artificial incubation of Baer's Pochard eggs according to claim 9, characterized in that, The main control mechanism includes a data acquisition module, a data storage module, a data analysis module, and a result generation module. The data acquisition module is used to receive and store the data collected by the weighing sensor and the high-definition camera, and transmit it to the data analysis module. The data storage module is used to store an embryonic development sequence map database and a theoretical weight loss rate database during the incubation period of Baer's Pochard chicks; The data analysis module is used to compare and analyze the data transmitted by the data acquisition module with the embryonic development sequence atlas database and the theoretical weight loss rate database in the data storage module. The result generation module is used to generate evaluation conclusions and control suggestions according to the comparative analysis results of the data analysis module and a preset logic matrix, and display them through the human-computer interaction mechanism.

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