Digestible quality analysis system for chicken feed

Abstract

The invention discloses a digestible quality analysis system for chicken feed, relates to the technical field of chicken feed analysis, and aims to solve the problem of poor simulation effect of digestion of the chicken feed. According to the method, low-temperature and high-temperature staged drying treatment is adopted, the characteristics of components such as moisture and fat in the residues are fully considered, the secretion rules of different alimentary canal parts of animals are simulated, sufficient and reasonable contact of digestive juice and feed is ensured, the simulation process is closer to the real physiological condition, and the situation that the digestion analysis result is affected by liquid amount errors is avoided; animal digestive tracts are scientifically segmented into stomach, small intestine and large intestine stages, corresponding external buffer solution and internal digestive juice are injected respectively, and a real digestion scene is comprehensively simulated from a physical structure to a chemical environment.

Description

Technical Field

[0001] This invention relates to the field of chicken feed analysis technology, specifically to a system for analyzing the digestible quality of chicken feed. Background Technology

[0002] Chicken feed costs account for over 60% of poultry farming costs, and its digestibility directly impacts farming efficiency. Traditional chemical analysis cannot assess actual digestibility, while in vivo digestibility testing, considered the "gold standard," is costly and time-consuming, hindering widespread adoption. Existing rapid detection technologies (such as near-infrared spectroscopy) lack sufficient accuracy in predicting digestibility, and in vitro simulation methods suffer from inconsistent results. The industry urgently needs to develop a rapid, accurate, and low-cost digestibility quality analysis system to address the core pain points of precise nutritional formulation and quality control.

[0003] Chinese patent CN113588593A discloses a system and method for adjusting chicken feed, primarily using NIR spectroscopy to analyze the concentration of residual components in digested feed. While this patent addresses the issue of feed determination, the following problems remain in practical application: 1. The nutrient values ​​of the final digested feed samples were not effectively calculated and analyzed, resulting in poor logic in the nutrient analysis.

[0004] 2. After the simulation experiment was completed, there was no effective analysis of the entire simulation process and no targeted treatment of the final residue, which resulted in poor final sample performance.

[0005] 3. The lack of targeted digestive control and treatment based on the digestive status of each part resulted in inaccurate digestive simulation data. Summary of the Invention

[0006] The purpose of this invention is to provide a digestible quality analysis system for chicken feed. It employs a staged low-temperature and high-temperature drying process, fully considering the characteristics of moisture and fat components in the residue. It simulates the secretion patterns of different parts of the animal's digestive tract, ensuring sufficient and reasonable contact between digestive fluids and feed. This makes the simulation process closer to real physiological conditions, avoiding the influence of liquid volume errors on digestion analysis results. The animal's digestive tract is scientifically divided into the stomach, small intestine, and large intestine stages, with corresponding external buffer solutions and internal digestive fluids injected into each. From physical structure to chemical environment, it comprehensively simulates the real digestion scenario, solving the problems in existing technologies.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A digestible quality analysis system for chicken feed includes: The equipment preparation unit is used to prepare the quality analysis equipment before performing digestion analysis on chicken feed. The equipment digestion simulation unit is used to: simulate the physical structure of the animal digestive tract and the process of digestion and absorption using quality analysis equipment; Solution control unit, used to control the digestion solution and buffer solution during the simulation process of the mass analysis equipment; The simulation control unit is used to simulate and control the temperature environment and chyme mixing motion of the digestive tract during the simulation process. The simulation process monitoring unit is used to monitor the entire simulation process of the quality analysis equipment. The sample collection unit is used to process the final residue and collect samples from the residue. The nutrient value calculation unit is used to record simulation experiment data and calculate the digestible nutrient value of the sample.

[0008] Preferably, the nutrient value calculation unit is further used for: Data was recorded during the simulation process of the simulation experiment, and the final sample information was also recorded. The sample information included feed name, number, weight, particle size and animal type. The data of the simulation process included digestive fluid parameters, cleaning operation data and abnormal event logs. To calculate the digestible nutrient value of a sample: first, calculate the dry matter content of the sample, then calculate the digestible nutrient value based on the dry matter content, and obtain the digestible nutrient value of the sample. The final step in the process is to analyze the digestibility of the chicken feed.

[0009] Preferably, the equipment preparation unit is further configured to: The quality analysis equipment is a monogastric animal bionic digestive system, including a control panel, tubing connectors, a constant temperature water tank, a peristaltic pump, a glass digester, a solenoid valve, and a cleaning bottle; The glass digester is equipped with a dialysis tube. One end of the glass digester is fixed with a silicone plug, and the other end is connected to an L-shaped plastic tube. There are four sets of peristaltic pumps, which control the flow rate and volume of buffer solution, washing solution and digestion solution respectively; there are eleven sets of solenoid valves, which control the liquid flow direction and on / off state respectively. The temperature in the constant temperature water tank is maintained according to the animal's body temperature; Before performing digestive analysis on chicken feed, the quality analysis equipment undergoes functional testing. After all tests are completed and passed, the equipment operation experiment is carried out.

[0010] Preferably, the digestion simulation unit of the device is further used for: The physical structure of the animal digestive tract is as follows: the digestive tract is first divided into segments, including the stomach, small intestine, and large intestine. The physical structure of the animal digestive tract was simulated using external buffer solution and internal digestive fluid. During the stomach, small intestine, and large intestine stages, external buffer solution and internal digestive fluid are injected through dialysis tubes, respectively. After both external buffer solution and internal digestive fluid were injected, a digestion and absorption simulation was performed, including the gastric digestion stage, the small intestinal digestion stage, and the large intestinal digestion stage. The gastric digestion stage is as follows: 1-2g of feed sample is crushed to 60 mesh and placed in a dialysis bag. 20mL of gastric digestion fluid is added, and the glass digester is sealed. Then, the peristaltic pump is started to circulate the gastric buffer solution. The shaking temperature is set to 39℃, the rotation speed is 180rpm / min, and the digestion time is 3 hours. The small intestine digestion stage is as follows: After the gastric digestion stage is completed, 1500 mL of deionized water is injected through a peristaltic pump and the mixture is rinsed 3 times, 40 minutes each time, until the gastric residual fluid is emptied; then switch to the small intestine buffer solution, inject 3 mL of small intestine digestion fluid through a peristaltic pump, and reduce the shaker speed to 120 rpm / min; The large intestine digestion stage is as follows: After the small intestine digestion stage is completed, repeat the cleaning steps 3 times, each time for 40 minutes, until the residual fluid in the small intestine is emptied. Then switch to the large intestine buffer solution and inject 3 mL of large intestine digestion solution through a peristaltic pump. Set the digestion time to 21 hours and reduce the shaker speed to 60 rpm / min. Ultimately, this completes the digestion and absorption process in the animal's digestive tract.

[0011] Preferably, the solution control unit is further configured to: When controlling the digestion fluid and buffer solution, the corresponding hardware equipment includes a peristaltic pump, a solenoid valve, and a constant temperature water tank; The system utilizes four sets of peristaltic pumps to control the flow rate and velocity of gastric buffer solution, washing fluid, small intestinal digestive fluid, and large intestinal digestive fluid; eleven sets of solenoid valves to control the direction of liquid flow; and a constant temperature water tank to maintain the temperature of the buffer solution with an error of ≤0.4℃.

[0012] Preferably, the solution control unit is further used for; Determine the real-time simulation stage in the simulation process of the quality analysis equipment; The initial solution input schemes for digestion fluid and buffer solution corresponding to the real-time simulation stage are extracted based on the preset simulation database. The system acquires real-time simulated individuals and their physiological states from the quality analysis equipment, and optimizes the initial solution input scheme to obtain an optimized solution input scheme. Based on the optimized solution input scheme, digestion solution and buffer solution are input into the quality analysis equipment. At the same time, the equipment simulation status parameters of the quality analysis equipment are monitored in real time during the solution input process. The device simulation state parameters at each moment within the current solution input cycle are integrated, and each type of device simulation state parameter is classified to obtain a set of classified state parameters. The device simulation state parameters corresponding to each sub-category state parameter set in the classification state parameter set are input into the same coordinate system according to the time sequence, and curve fitting is performed according to the simulation accuracy to obtain the simulation state curve of the current type of device simulation state parameters in the current solution input cycle. The parameter stability performance of the corresponding equipment simulation state parameters is determined by comprehensively considering the curve change trend and the degree of curve fluctuation of each simulation state curve. If there are device simulation state parameters in the simulation state curve that exceed the preset standard parameter range, and the corresponding parameter stability performance is less than the preset minimum stability performance, then the parameter value corresponding to the device simulation state parameter that exceeds the preset standard parameter range will be used as the correction parameter value. The parameter difference is obtained by determining the parameter difference between the corrected parameter value and the corresponding preset standard parameter range threshold. The correction parameter difference is compared one by one with the preset correction database to determine the solution adjustment input scheme corresponding to the current correction parameter difference; The input of digestion solution and buffer solution is controlled and adjusted based on the solution adjustment input scheme.

[0013] Preferably, the analog control unit is further configured to: Equipment for simulating and controlling the temperature environment of the digestive tract includes a constant temperature water tank, an air bath shaker, and temperature sensors. The temperature control process is as follows: one hour before the simulation experiment, the constant temperature water tank is started and the target temperature is set according to the animal type. After the target temperature is set, the temperature is controlled in sequence according to the physical structure of the animal's digestive tract. After the experiment, the heating mode is turned off and the cooling fan is turned on to cool down. The control of digestive tract mixing movement was achieved by using an air bath shaker to set the rotation speed for the physical structure of each animal's digestive tract and monitoring the rotation speed in real time. If the rotation speed fluctuated by more than ±5 rpm / min, an automatic alarm was triggered and the experiment was paused.

[0014] Preferably, the simulation process monitoring unit is further configured to: During the simulation process, the monitoring system of the quality analysis equipment collects data in real time through hardware sensors and displays the collected real-time data on the control panel. The control panel displays parameters dynamically, including a temperature monitoring area, a liquid state area, and a mixed motion area. The control panel displays the temperature of the constant temperature water tank, the temperature of the air bath shaker, and the temperature inside the digester in real time, updating once per second; the liquid status area displays the peristaltic pump flow rate, the solenoid valve on / off status, and the remaining amount of cleaning fluid; the mixed motion area displays the shaker speed and oscillation mode in real time, and records the average speed every 5 minutes. Finally, anomaly analysis is performed on the collected real-time data, and an alarm mechanism is automatically triggered when abnormal temperature, liquid leakage, or mixing cessation occurs. Specifically, when the temperature deviation is greater than ±0.8℃, a buzzer alarm is triggered; when the temperature deviation is greater than ±1.2℃, the experiment is forcibly paused. When the weight sensor detects an abnormal increase in the weight of the waste liquid bottle, it is determined that there is a leak in the pipeline, and all solenoid valves are closed. The waste liquid bottle is installed at the end of the discharge pipeline of the cleaning liquid, and a weight sensor is installed at the bottom of the waste liquid bottle. When the shaking speed remains at 0 rpm for more than 2 minutes, it is determined that there is a motor failure, an alarm is triggered, and the downtime is recorded. Finally, the real-time acquisition of monitoring data for the simulation process was completed.

[0015] Preferably, the sample acquisition unit is further used for: After the digestion simulation experiment is completed, turn off the peristaltic pump and solenoid valve, remove the glass digester from the air bath shaker, disconnect the buffer tubing, cut the dialysis bag longitudinally, remove the residue, and rinse the inner wall with deionized water. If there is any residue adhering to the dialysis bag, gently scrape it into the culture dish with a moistened cotton swab. Place the petri dish containing the residue into a 65℃ electric heating forced-air drying oven and dry at a low temperature for 12-14 hours. After the residue is dried at a low temperature, it is degreased. The degreased residue is then dried at a high temperature. The high-temperature drying is to place the degreased residue together with the glass sand crucible into a 105℃ electric heating forced-air drying oven and dry it to constant weight. After high-temperature drying, weigh 0.5-1g of the residue and package it into a sample.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention provides a digestible quality analysis system for chicken feed. It first calculates the dry matter content and then calculates the digestible nutrient value based on this. This step-by-step calculation method conforms to the logic of feed nutrient analysis, effectively reduces the error caused by interference from factors such as moisture, and improves the accuracy and reliability of nutrient value calculation. It scientifically divides the animal digestive tract into the stomach, small intestine and large intestine stages, and injects corresponding external buffer solution and internal digestive fluid into each stage. It simulates the real digestion scenario in all aspects from physical structure to chemical environment.

[0017] 2. The present invention provides a digestible quality analysis system for chicken feed that simulates the secretion patterns of different parts of the animal's digestive tract, ensuring sufficient and reasonable contact between digestive fluids and feed, making the simulation process closer to real physiological conditions, and avoiding the influence of liquid volume errors on digestion analysis results.

[0018] 3. The digestible quality analysis system for chicken feed provided by this invention, through the division of temperature monitoring zone, liquid state zone and mixed motion zone, makes the information clear and intuitive. Experimenters do not need to sift through complex data, quickly locate the information they need, improve work efficiency, and adopt low temperature and high temperature staged drying treatment to fully consider the characteristics of moisture and fat components in the residue. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the steps of quality analysis for chicken feed according to the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To address the issue of poor logical consistency in nutrient analysis caused by the lack of effective calculation and analysis of the nutrient values ​​of the final digested feed sample in existing technologies, please refer to [link to relevant documentation]. Figure 1 This embodiment provides the following technical solution: A digestible quality analysis system for chicken feed includes: The equipment preparation unit is used to prepare the quality analysis equipment before performing digestion analysis on chicken feed. The equipment digestion simulation unit is used to: simulate the physical structure of the animal digestive tract and the process of digestion and absorption using quality analysis equipment; Solution control unit, used to control the digestion solution and buffer solution during the simulation process of the mass analysis equipment; The simulation control unit is used to simulate and control the temperature environment and chyme mixing motion of the digestive tract during the simulation process. The simulation process monitoring unit is used to monitor the entire simulation process of the quality analysis equipment. The sample collection unit is used to process the final residue and collect samples from the residue. The nutrient value calculation unit is used to record simulation experiment data and calculate the digestible nutrient value of the sample.

[0022] Specifically, the quality analysis equipment replicates the physical structure of the animal digestive tract, ensuring a high degree of consistency between the feed digestion path and real-world conditions, thus reducing analytical errors caused by differences in the physical environment. Simultaneously, precise control of the digestive fluid composition, concentration, and buffer pH simulates the digestive enzyme environment of different animals at different physiological stages, guaranteeing consistent enzyme activity with in vivo results. Furthermore, precise control of temperature and digesta mixing maintains optimal enzyme activity, replicating the mechanical mixing of feed by gastrointestinal motility for a more realistic digestion process. Sensors monitor key parameters such as temperature and pH in real time, generating dynamic data curves for timely adjustments to experimental conditions, and a visual interface enhances experimental controllability. Standardized processing and automated sample collection of digestive residues reduce human error and contamination, ensuring sample representativeness and consistency.

[0023] The nutrient value calculation unit is also used for: Data was recorded during the simulation process of the simulation experiment, and the final sample information was also recorded. The sample information included feed name, number, weight, particle size and animal type. The data of the simulation process included digestive fluid parameters, cleaning operation data and abnormal event logs. To calculate the digestible nutrient value of a sample: first, calculate the dry matter content of the sample, then calculate the digestible nutrient value based on the dry matter content, and obtain the digestible nutrient value of the sample. The final step in the process is to analyze the digestibility of the chicken feed.

[0024] Specifically, the data recording is characterized by its completeness and systematic nature. Comprehensive recording of digestive fluid parameters, cleaning operation data, and anomaly logs throughout the simulation process ensures a complete reconstruction of the experimental procedure. Digestive fluid parameters reflect the digestive environment, cleaning operation data affects experimental purity, and anomaly logs provide a basis for troubleshooting and process optimization. Detailed sample information is also recorded, from feed name and number to weight, particle size, and animal type, facilitating accurate traceability and classification management, and ensuring the repeatability and verifiability of experimental data. The nutrient value calculation method is scientifically rigorous. Dry matter content is calculated first, followed by digestible nutrient values. This step-by-step calculation method aligns with the logic of feed nutrient analysis, effectively reducing errors caused by factors such as moisture, and improving the accuracy and reliability of nutrient value calculations. This provides solid data support for the scientific assessment of feed nutritional value. Detailed data recording requirements and clear calculation procedures establish a unified standard for chicken feed quality digestibility analysis, facilitating data comparison and experience exchange among different laboratories and researchers.

[0025] In this embodiment, the digestible nutrient value T of the sample is obtained by: ; Where T is the digestible nutrient value of the current sample. This represents the nutrient content corresponding to the i-th nutrient type in the initial sample within the current sample. This represents the nutrient content corresponding to the i-th nutrient type in the sample residue of the current sample. This represents the weight of the influence of the i-th nutrient type in the current sample on the digestible nutrient value of the sample. Let be the nutrient content conversion coefficient for the i-th nutrient type in the current sample, where i = 1, 2, 3, ..., n, and n is the number of nutrient types included in the sample. The sum of the influence weights of the i nutrient types in the current sample on the digestible nutrient value of the sample is 1.

[0026] The beneficial effects of the above technical solution are as follows: by combining the dry matter content to calculate the digestible nutrient value of the sample, the interference error of factors such as moisture can be effectively reduced, the accuracy and reliability of nutrient value calculation can be improved, and the quality analysis equipment can be more accurate, thereby providing more scientific and accurate data support for chicken feed digestibility analysis.

[0027] The equipment preparation unit is also used for: The quality analysis equipment is a monogastric animal bionic digestive system, including a control panel, tubing connectors, a constant temperature water tank, a peristaltic pump, a glass digester, a solenoid valve, and a cleaning bottle; The glass digester is equipped with a dialysis tube. One end of the glass digester is fixed with a silicone plug, and the other end is connected to an L-shaped plastic tube. There are four sets of peristaltic pumps, which control the flow rate and volume of buffer solution, washing solution and digestion solution respectively; there are eleven sets of solenoid valves, which control the liquid flow direction and on / off state respectively. The temperature in the constant temperature water tank is maintained according to the animal's body temperature; Before performing digestive analysis on chicken feed, the quality analysis equipment undergoes functional testing. After all tests are completed and passed, the equipment operation experiment is carried out.

[0028] Specifically, it excels in the accuracy of simulating the digestive process. By setting up dialysis tubing, changing buffer and digestive fluid, and precisely controlling the liquid flow rate with four sets of peristaltic pumps and the flow direction with eleven solenoid valves, it can highly replicate the digestive environment and process of monogastric animals under natural conditions. Every step, from physical mixing to chemical decomposition, can be meticulously simulated, providing accurate data support for research on the digestive and absorption mechanisms of animal feed. The equipment combines ease of operation and flexibility. The control panel integrates multiple functions, allowing researchers to intuitively and conveniently set parameters. The rationally designed pipe fittings and L-shaped plastic tubing facilitate liquid connection and transfer. The combination of multiple peristaltic pumps and solenoid valves allows researchers to flexibly adjust various parameters during the digestive process according to different experimental needs. Whether for basic research or digestive analysis under specific conditions, it is highly adaptable, demonstrating outstanding reliability and stability. The constant temperature water tank maintains a constant temperature based on the different body temperatures of animals, ensuring that the digestion reaction takes place at an appropriate temperature. Conducting equipment function tests before chicken feed digestion analysis allows for the timely detection and elimination of potential malfunctions, ensuring the accuracy and repeatability of experimental results and reducing experimental errors and resource waste caused by equipment problems. Furthermore, this quality analysis equipment uses materials such as glass digesters, facilitating observation of the internal reaction process, and the inclusion of cleaning bottles facilitates equipment cleaning and maintenance, extending the equipment's lifespan and improving overall efficiency.

[0029] The equipment digestion simulation unit is also used for: The physical structure of the animal digestive tract is as follows: the digestive tract is first divided into segments, including the stomach, small intestine, and large intestine. The physical structure of the animal digestive tract was simulated using external buffer solution and internal digestive fluid. During the stomach, small intestine, and large intestine stages, external buffer solution and internal digestive fluid are injected through dialysis tubes, respectively. After both external buffer solution and internal digestive fluid were injected, a digestion and absorption simulation was performed, including the gastric digestion stage, the small intestinal digestion stage, and the large intestinal digestion stage. The gastric digestion stage is as follows: 1-2g of feed sample is crushed to 60 mesh and placed in a dialysis bag. 20mL of gastric digestion fluid is added, and the glass digester is sealed. Then, the peristaltic pump is started to circulate the gastric buffer solution. The shaking temperature is set to 39℃, the rotation speed is 180rpm / min, and the digestion time is 3 hours. The small intestine digestion stage is as follows: After the gastric digestion stage is completed, 1500 mL of deionized water is injected through a peristaltic pump and the mixture is rinsed 3 times, 40 minutes each time, until the gastric residual fluid is emptied; then switch to the small intestine buffer solution, inject 3 mL of small intestine digestion fluid through a peristaltic pump, and reduce the shaker speed to 120 rpm / min; The large intestine digestion stage is as follows: After the small intestine digestion stage is completed, repeat the cleaning steps 3 times, each time for 40 minutes, until the residual fluid in the small intestine is emptied. Then switch to the large intestine buffer solution and inject 3 mL of large intestine digestion solution through a peristaltic pump. Set the digestion time to 21 hours and reduce the shaker speed to 60 rpm / min. Ultimately, this completes the digestion and absorption process in the animal's digestive tract.

[0030] Specifically, the animal digestive tract is scientifically divided into the stomach, small intestine, and large intestine stages, with corresponding external buffer solutions and internal digestive fluids injected into each stage. This comprehensively simulates the real digestive scenario from the perspectives of physical structure and chemical environment. The parameters such as the composition, temperature, rotation speed, and time of the buffer and digestive fluids at different stages closely match the digestive conditions of animals under natural conditions, effectively replicating the entire process of digestive enzyme action, food propulsion, and nutrient absorption. This provides a reliable data foundation for research. The operational procedures for each stage are clearly defined, such as using peristaltic pumps to control liquid injection and shaking tables to adjust rotation speed and temperature, allowing researchers to adjust parameters according to different experimental needs. Clear standards exist for feed sample processing, liquid injection volume, and digestion time, making the experimental process easily reproducible. Different experimenters can obtain comparable results, enhancing the credibility and universality of the research. Compared to experiments using live animals, this quality analysis equipment simulation scheme significantly reduces experimental costs and the number of animals used, complying with ethical standards and the "3R" principles (recycling, recycling, and environmental protection). Meanwhile, the experimental cycle can be flexibly controlled according to needs. By decomposing the digestion stage, digestion data at each stage can be obtained quickly, greatly improving research efficiency, accelerating the output of scientific research results, and having good economic and social benefits.

[0031] To address the issue of inaccurate digestion simulation data caused by the lack of targeted digestion control and processing based on the digestion status of each part in existing technologies, please refer to [link to relevant documentation]. Figure 1 This embodiment provides the following technical solution: The solution control unit is also used for: When controlling the digestion fluid and buffer solution, the corresponding hardware equipment includes a peristaltic pump, a solenoid valve, and a constant temperature water tank; The system utilizes four sets of peristaltic pumps to control the flow rate and velocity of gastric buffer solution, washing fluid, small intestinal digestive fluid, and large intestinal digestive fluid; eleven sets of solenoid valves to control the direction of liquid flow; and a constant temperature water tank to maintain the temperature of the buffer solution with an error of ≤0.4℃.

[0032] Specifically, four peristaltic pumps each perform their own function, independently controlling the fluids at different stages of digestion (gastric buffer, washing fluid, small intestinal digestive fluid, and large intestinal digestive fluid). This design allows for precise setting of the flow rate and velocity of each fluid according to experimental needs, simulating the secretion patterns of different parts of the animal's digestive tract. This ensures sufficient and appropriate contact between the digestive fluids and feed, making the simulation process closer to real physiological conditions and avoiding the impact of fluid volume errors on digestion analysis results. The fluid flow control system, composed of eleven solenoid valves, can quickly switch fluid delivery paths, achieving orderly supply and switching of fluids at different digestion stages. Whether it's the transition from the acidic environment of the stomach to the alkaline environment of the small intestine, or the timely injection of washing fluid, everything is executed precisely, ensuring the continuity and logic of the digestion process. This significantly improves the controllability and automation of experimental operations. The constant temperature water tank controls the buffer solution temperature error to ≤0.4℃, ensuring that digestive enzymes function at the appropriate temperature. A stable temperature environment not only improves the repeatability and reliability of experimental results, but also reduces experimental errors caused by temperature fluctuations, making data from different batches comparable and providing strong support for the accurate calculation of feed nutrient digestibility. The control parameters for each stage are shown in the table below: stage Buffer pH Digestive fluid components Flow rate temperature time Stomach 2.0 pepsin 180mL / min 39℃ 3 hours Small intestine 6.44 pancreatic enzymes, amylase 120mL / min 39℃ 1 hour the large intestine 6.42 Microbial community-mimicking enzymes 60mL / min 39℃ 21 hours ; The quality analysis equipment controls the digestion solution and buffer solution during the simulation process, and also includes; Determine the real-time simulation stage in the simulation process of the quality analysis equipment; The initial solution input schemes for digestion fluid and buffer solution corresponding to the real-time simulation stage are extracted based on the preset simulation database. The system acquires real-time simulated individuals and their physiological states from the quality analysis equipment, and optimizes the initial solution input scheme to obtain an optimized solution input scheme. Based on the optimized solution input scheme, digestion solution and buffer solution are input into the quality analysis equipment. At the same time, the equipment simulation status parameters of the quality analysis equipment are monitored in real time during the solution input process. The device simulation state parameters at each moment within the current solution input cycle are integrated, and each type of device simulation state parameter is classified to obtain a set of classified state parameters. The device simulation state parameters corresponding to each sub-category state parameter set in the classification state parameter set are input into the same coordinate system according to the time sequence, and curve fitting is performed according to the simulation accuracy to obtain the simulation state curve of the current type of device simulation state parameters in the current solution input cycle. The parameter stability performance of the corresponding equipment simulation state parameters is determined by comprehensively considering the curve change trend and the degree of curve fluctuation of each simulation state curve. If there are device simulation state parameters in the simulation state curve that exceed the preset standard parameter range, and the corresponding parameter stability performance is less than the preset minimum stability performance, then the parameter value corresponding to the device simulation state parameter that exceeds the preset standard parameter range will be used as the correction parameter value. The parameter difference is obtained by determining the parameter difference between the corrected parameter value and the corresponding preset standard parameter range threshold. The correction parameter difference is compared one by one with the preset correction database to determine the solution adjustment input scheme corresponding to the current correction parameter difference; The input of digestion solution and buffer solution is controlled and adjusted based on the solution adjustment input scheme.

[0033] In this embodiment, the quality analysis device refers to a device designed and manufactured to simulate the structure, function, or behavior of a biological system or organ. For example, the quality analysis device can be used to simulate the digestive process in a living organism, including the flow and interaction of digestive fluids and buffer solutions.

[0034] In this embodiment, the digestive fluid in the quality analysis equipment refers to simulated gastric acid digestive fluid, which contains components such as hydrochloric acid and pepsin, and is similar to the composition of real gastric juice. The digestive fluid is used to simulate the digestive process in a living organism.

[0035] In this embodiment, in the quality analysis device, the buffer solution is used to maintain the pH stability of the digestive environment, simulating the acid-base balance mechanism in the body. For example, in order to maintain the pH stability of the simulated gastric juice, a certain amount of sodium bicarbonate buffer solution is added. When there is too much gastric acid, the buffer solution can neutralize some of the acid and keep the pH within a reasonable range.

[0036] In this embodiment, the real-time simulation phase refers to the current time period during which the quality analysis equipment is simulating a digestion process. The real-time simulation phase includes a stomach digestion phase, a small intestine digestion phase, and a large intestine digestion phase. The temperature, input of digestive fluids and buffer solutions, pH value, and stirring intensity vary depending on the stage of the simulated digestion.

[0037] In this embodiment, the preset simulation database is a database containing various simulation schemes and related data. It stores the initial solution input schemes for digestive fluids and buffer solutions at different simulation stages, as well as other possible simulation parameters and conditions. For example, the preset simulation database stores the initial input schemes for digestive fluids and buffer solutions required for different foods (such as high-protein, high-fat, and high-carbohydrate foods) during different stages of digestion in the stomach (such as 0.5 hours, 1 hour, and 2 hours).

[0038] In this embodiment, the real-time simulated individual refers to the specific biological individual that the quality analysis device is currently simulating. For example, the real-time simulated individual can be wild animals, livestock, poultry, and aquatic animals. The individual's physiological state refers to the physiological condition of the individual during the simulation process. The individual's physiological state includes: hunger, disease, and satiety.

[0039] In this embodiment, the initial solution input scheme is a digestive fluid and buffer solution input scheme formulated for a specific simulation stage based on a preset simulation database. It includes parameters such as the type, concentration, input volume, and input time of the solution. For example, the initial solution input scheme can be to input 50 ml of simulated gastric acid (pH=1.5) and 10 ml of buffer solution 1 hour after eating.

[0040] In this embodiment, scheme optimization refers to adjusting and improving the initial solution input scheme based on the physiological state of the simulated individual and other relevant factors in real time, so as to more accurately simulate the digestive process in the body. For example, during the real-time simulation, it was found that the pH value of the simulated stomach device dropped too quickly, so the initial scheme was adjusted to reduce the input of simulated gastric acid to 40ml and increase the input of buffer solution to 15ml.

[0041] In this embodiment, the optimized solution input scheme is the final input scheme of digestive fluid and buffer solution obtained after scheme optimization, which is more in line with the physiological state and simulation needs of the individual in real time. For example, the optimized solution input scheme is to input 40ml of simulated gastric acid (pH=1.5) and 15ml of buffer solution 1 hour after eating.

[0042] In this embodiment, the equipment simulation state parameters refer to various parameters monitored by the quality analysis equipment during the simulation process, such as the pH value, temperature, and flow rate of the digestate, as well as the operating status of the equipment, which are used to evaluate the accuracy and stability of the simulation process.

[0043] In this embodiment, the classification state parameter set is a set obtained by classifying the simulated state parameters of the device according to their types. For example, the monitored parameters are divided into a pH value parameter subset (such as pH=2.1, pH=2.0, etc.), a temperature parameter subset (such as 37.1℃, 37.2℃, etc.), and a flow rate parameter subset (such as peristaltic speed of 0.5 times / minute, 1 time / minute, etc.).

[0044] In this embodiment, simulation accuracy refers to the simulation accuracy performed by the quality analysis equipment, and the value range of simulation accuracy is (0.9, 0.999).

[0045] In this embodiment, the simulated state curve is obtained by inputting the simulated state parameters of a certain type of device in the classification state parameter set into the same coordinate system according to the time sequence and then performing curve fitting.

[0046] In this embodiment, parameter stability refers to the degree of stability of the simulated state parameters of the equipment during the simulation process. For example, by analyzing the simulated state curve, it is found that the pH value fluctuates little and the trend of change is stable during the simulation process, indicating that the parameter stability is good. In this case, judging the parameter stability requires a comprehensive determination of the degree of fluctuation and the trend of change of the simulated state curve. To comprehensively determine the degree of fluctuation and the trend of change of the simulated state curve, it is necessary to combine the influence of the degree of fluctuation and the trend of change of the curve in the historical simulated state curves on the parameter stability to determine the corresponding reference weights, so as to conduct a comprehensive analysis. The sum of the reference weights of the degree of fluctuation and the reference weights of the trend of change of the curve is 1.

[0047] In this embodiment, the preset standard parameter range refers to the allowable range of variation set for the device's simulated state parameters based on the actual situation within the organism and the simulation requirements. If the parameter values ​​of the device's simulated state parameters exceed this range, it may mean that an abnormality or deviation has occurred in the simulation process. For example, the standard parameter range for the pH value of the simulated gastric fluid is set to 1.5-3.6, the standard parameter range for the temperature is 36.5-37.5℃, and the standard parameter range for the flow rate is 0.4-1 times / minute.

[0048] In this embodiment, the preset minimum stability performance is determined based on the simulation accuracy of the quality analysis equipment.

[0049] In this embodiment, the correction parameter value refers to the device simulation state parameter value that exceeds the preset standard parameter range. For example, at a certain moment, the pH value of the simulated gastric fluid is monitored to be 4.0, which exceeds the preset standard parameter range (1.5-3.6). Therefore, 4.0 is the correction parameter value.

[0050] In this embodiment, the correction parameter difference refers to the difference between the correction parameter value and the corresponding preset standard parameter range threshold, which is used to quantify the degree to which the parameter deviates from the standard range. For example, the correction parameter difference is 4.0 (correction parameter value) minus 3.6 (upper limit of the preset standard parameter range), resulting in 0.4.

[0051] In this embodiment, the preset correction database is a database containing various input correction schemes and related data. It stores solution adjustment input schemes corresponding to different correction parameter differences, as well as other correction measures. For example, the database stores solution adjustment input schemes corresponding to different correction parameter differences. When the correction parameter difference is 0.5, it is recommended to reduce the input volume of simulated gastric acid by 6 ml and increase the input volume of buffer solution by 3 ml.

[0052] In this embodiment, the solution adjustment input scheme is a digestive fluid and buffer solution input adjustment scheme determined from a preset correction database based on the correction parameter difference. For example, according to the preset correction database, for a correction parameter difference of 0.5, the solution adjustment input scheme is to reduce the input volume of simulated gastric acid by 6 ml (from 50 ml to 44 ml) and increase the input volume of buffer solution by 3 ml (from 12 ml to 15 ml).

[0053] The working principle of the above technical solution is as follows: First, the real-time simulation stage is determined, and the initial input scheme for digestion fluid and buffer solution for this stage is extracted from a preset database. Next, the physiological state of the simulated individual is acquired, thereby optimizing the initial input scheme. The solution is then input into the quality analysis equipment according to the optimized input scheme, while the simulated state parameters of the equipment are monitored in real time. Then, the parameters at each moment during the input process are categorized and integrated, and similar parameters are fitted into simulated state curves in chronological order, forming a set of state curves. The stability of the parameters is then analyzed through these curves. If a parameter value exceeds the preset standard range, it is used as a correction parameter value, the correction parameter difference is calculated, and compared with a preset correction database to determine the solution adjustment input scheme. Finally, the input of digestion fluid and buffer solution is adjusted according to the solution adjustment input scheme to ensure the accuracy and stability of the quality analysis equipment simulation.

[0054] The beneficial effects of the above technical solution are as follows: by pre-setting a simulation database and optimizing the solution input scheme based on real-time physiological state, the biological digestion environment can be simulated more accurately, improving the accuracy of the simulation. Furthermore, by monitoring parameters and fitting curves in real time, abnormal parameters can be detected and corrected in a timely manner, allowing for faster adjustment of the solution input and ensuring simulation stability. This greatly enhances the realism and reliability of the simulation by the quality analysis equipment, providing a more efficient and accurate tool for studying digestion processes, drug effects, and other related topics.

[0055] The analog control unit is also used for: Equipment for simulating and controlling the temperature environment of the digestive tract includes a constant temperature water tank, an air bath shaker, and temperature sensors. For example, the simulated control temperature for pigs is 39℃; for chickens it is 41℃; and for ducks it is 42℃; at the same time, the accuracy of the simulated control temperature for pigs, chickens and ducks is within ±0.4℃. The temperature control process is as follows: one hour before the simulation experiment, the constant temperature water tank is started and the target temperature is set according to the animal type. After the target temperature is set, the temperature is controlled in sequence according to the physical structure of the animal's digestive tract. After the experiment, the heating mode is turned off and the cooling fan is turned on to cool down. The control of digestive tract mixing movement was achieved by using an air bath shaker to set the rotation speed for the physical structure of each animal's digestive tract and monitoring the rotation speed in real time. If the rotation speed fluctuated by more than ±5 rpm / min, an automatic alarm was triggered and the experiment was paused.

[0056] Specifically, different simulated control temperatures are set for different animals, with an accuracy of ±0.4℃, fully considering the physiological characteristics of different animals and realistically reproducing the temperature environment of their digestive tract. The air bath shaker's rotation speed is set according to the physical structure of the animal's digestive tract, achieving precise simulation of the mixing and movement of food chyme. This provides more reliable experimental conditions for studying the digestion process of feed in different animals, making the experimental results more convincing and valuable. The constant temperature water tank, air bath shaker, and temperature sensors work together to form a standardized procedure before, during, and after the experiment. The constant temperature water tank was started an hour in advance to set the target temperature, and the temperature was gradually controlled according to the physical structure of the animal's digestive tract. The temperature was promptly lowered after the experiment. This orderly operation ensured the stability of the temperature environment. The air bath shaker was monitored in real time to ensure stable mixing and movement of the food, effectively avoiding the impact of fluctuations in environmental and movement factors on the experimental results, thus improving the stability and consistency of the experiment. An alarm threshold of ±5 rpm / min was set for speed fluctuations and the experiment was automatically paused. This enabled timely detection and handling of abnormal situations, avoiding the invalidation of experimental data due to equipment failure or abnormal parameters, reducing experimental risks, and protecting experimental equipment. It also reduced damage caused by abnormal operation, ensuring the safe and reliable conduct of the experiment and laying a solid foundation for subsequent data analysis and feed evaluation.

[0057] To address the issue in existing technologies where the simulation process is not effectively analyzed after completion, and the final residue is not specifically treated, resulting in poor sample quality, please refer to [link to relevant documentation]. Figure 1 This embodiment provides the following technical solution: The simulation process monitoring unit is also used for: During the simulation process, the monitoring system of the quality analysis equipment collects data in real time through hardware sensors and displays the collected real-time data on the control panel. The control panel displays parameters dynamically, including a temperature monitoring area, a liquid state area, and a mixed motion area. The control panel displays the temperature of the constant temperature water tank, the temperature of the air bath shaker, and the temperature inside the digester in real time, updating once per second; the liquid status area displays the peristaltic pump flow rate, the solenoid valve on / off status, and the remaining amount of cleaning fluid; the mixed motion area displays the shaker speed and oscillation mode in real time, and records the average speed every 5 minutes. Finally, anomaly analysis is performed on the collected real-time data, and an alarm mechanism is automatically triggered when abnormal temperature, liquid leakage, or mixing cessation occurs. Specifically, when the temperature deviation is greater than ±0.8℃, a buzzer alarm is triggered; when the temperature deviation is greater than ±1.2℃, the experiment is forcibly paused. When the weight sensor detects an abnormal increase in the weight of the waste liquid bottle, it is determined that there is a leak in the pipeline, and all solenoid valves are closed. The waste liquid bottle is installed at the end of the discharge pipeline of the cleaning liquid, and a weight sensor is installed at the bottom of the waste liquid bottle. When the shaking speed remains at 0 rpm for more than 2 minutes, it is determined that there is a motor failure, an alarm is triggered, and the downtime is recorded. Finally, the real-time acquisition of monitoring data for the simulation process was completed.

[0058] Specifically, hardware sensors collect data in real time and display it dynamically on the control panel. Temperature updates every second, and the shaker speed is recorded as an average value every 5 minutes. Researchers can quickly grasp the equipment's operating status, having complete control over temperature changes, liquid flow rate, and mixing motion. This provides a basis for precise control of the experimental process, and the anomaly analysis and alarm mechanisms greatly enhance experimental safety. Clear judgment criteria and response strategies are set for anomalies such as temperature, liquid leakage, and mixing stoppage. A graded alarm and forced pause mechanism for temperature deviation prevents temperature runaway from affecting experimental results or even causing safety accidents. Weight sensors monitor the weight of waste bottles, promptly detecting pipeline leaks and closing solenoid valves to prevent liquid spills that could cause pollution or equipment damage. Monitoring and recording of shaker motor malfunctions effectively reduces experimental interruptions and data loss due to equipment failure. The parameter partitioning display design optimizes the user experience. The division of the temperature monitoring area, liquid status area, and mixing motion area makes the information clear and intuitive, allowing researchers to quickly locate the required information without sifting through complex data, thus improving work efficiency. Meanwhile, the system's centralized management and analysis of collected data helps experimenters review the experimental process, summarize patterns, and provide data accumulation and experience reference for subsequent research. This makes the monitoring of the entire simulation process not only serve the current experiment but also have long-term scientific research value.

[0059] The sample acquisition unit is also used for: After the digestion simulation experiment is completed, turn off the peristaltic pump and solenoid valve, remove the glass digester from the air bath shaker, disconnect the buffer tubing, cut the dialysis bag longitudinally, remove the residue, and rinse the inner wall with deionized water. If there is any residue adhering to the dialysis bag, gently scrape it into the culture dish with a moistened cotton swab. Place the petri dish containing the residue into a 65℃ electric heating blast drying oven and dry at a low temperature for 12-14 hours. After the residue is dried at a low temperature, it is degreased. The degreased residue is then dried at a high temperature. The high temperature drying is achieved by placing the degreased residue along with the glass sand crucible into a 105℃ electric heating blast drying oven and drying until constant weight. After high-temperature drying, weigh 0.5-1g of the residue and package it into a sample.

[0060] Specifically, after the experiment, the glass digester and dialysis bag underwent meticulous processing. Not only were the main residues removed, but the inner walls were rinsed with deionized water, and adhering substances were scraped off with cotton swabs to ensure comprehensive residue recovery. This effectively avoided experimental data deviations caused by residue residue, ensuring that the samples accurately reflected the actual situation after digestion simulation and providing a reliable basis for subsequent analysis. A staged low-temperature and high-temperature drying process was employed, fully considering the characteristics of moisture and fat components in the residue. Low-temperature drying at 65℃ slowly removed most of the moisture from the residue, avoiding the decomposition or structural damage of organic components caused by high temperatures. After degreasing, a high-temperature drying process at 105℃ to constant weight completely eliminated moisture and fat interference, ensuring the residue was in a stable dry state, guaranteeing sample quality uniformity, and improving the accuracy and repeatability of analytical results. Clear regulations were established for each step of residue processing and collection, from equipment use to operating parameters. Standardized procedures reduced the arbitrariness of human operation, enabling researchers to quickly learn and execute procedures correctly. Meanwhile, a reasonable operating sequence and time arrangement, such as setting the low-temperature drying time and the requirement for high-temperature drying to constant weight, can effectively improve experimental efficiency while ensuring the treatment effect, and save time and resources for subsequent analysis and testing.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A digestible quality analysis system for chicken feed, characterized in that, include: The equipment preparation unit is used to prepare the quality analysis equipment before performing digestion analysis on chicken feed. The equipment digestion simulation unit is used to: simulate the physical structure of the animal digestive tract and the process of digestion and absorption using quality analysis equipment; Solution control unit, used to control the digestion solution and buffer solution during the simulation process of the mass analysis equipment; The simulation control unit is used to simulate and control the temperature environment and chyme mixing motion of the digestive tract during the simulation process. The simulation process monitoring unit is used to monitor the entire simulation process of the quality analysis equipment. The sample collection unit is used to process the final residue and collect samples from the residue. The nutrient value calculation unit is used to record simulation experiment data and calculate the digestible nutrient value of the sample. The solution control unit is also used for; Determine the real-time simulation stage in the simulation process of the quality analysis equipment; The initial solution input schemes for digestion fluid and buffer solution corresponding to the real-time simulation stage are extracted based on the preset simulation database. The system acquires real-time simulated individuals and their physiological states from the quality analysis equipment, and optimizes the initial solution input scheme to obtain an optimized solution input scheme. Based on an optimized solution input scheme, digestion solution and buffer solution are input into the quality analysis equipment. At the same time, the equipment simulation status parameters of the quality analysis equipment are monitored in real time during the solution input process.

2. The digestible quality analysis system for chicken feed according to claim 1, characterized in that, The nutrient value calculation unit is also used for: Data was recorded during the simulation process of the simulation experiment, and the final sample information was also recorded. The sample information included feed name, number, weight, particle size and animal type. The data of the simulation process included digestive fluid parameters, cleaning operation data and abnormal event logs. To calculate the digestible nutrient value of a sample: first, calculate the dry matter content of the sample, then calculate the digestible nutrient value based on the dry matter content, and obtain the digestible nutrient value of the sample. The final step in the process is to analyze the digestibility of the chicken feed.

3. The digestible quality analysis system for chicken feed according to claim 1, characterized in that, The equipment preparation unit is further configured to: The quality analysis equipment is a monogastric animal bionic digestive system, including a control panel, tubing connectors, a constant temperature water tank, a peristaltic pump, a glass digester, a solenoid valve, and a cleaning bottle; The glass digester is equipped with a dialysis tube. One end of the glass digester is fixed with a silicone plug, and the other end is connected to an L-shaped plastic tube. There are four sets of peristaltic pumps, which control the flow rate and volume of buffer solution, washing solution and digestion solution respectively; there are eleven sets of solenoid valves, which control the liquid flow direction and on / off state respectively. The temperature in the constant temperature water tank is maintained according to the animal's body temperature; Before performing digestive analysis on chicken feed, the quality analysis equipment undergoes functional testing. After all tests are completed and passed, the equipment operation experiment is carried out.

4. The digestible quality analysis system for chicken feed according to claim 3, characterized in that, The digestion simulation unit of the equipment is also used for: The physical structure of the animal digestive tract is as follows: the digestive tract is first divided into segments, including the stomach, small intestine, and large intestine. The physical structure of the animal digestive tract was simulated using external buffer solution and internal digestive fluid. During the stomach, small intestine, and large intestine stages, external buffer solution and internal digestive fluid are injected through dialysis tubes, respectively. After both external buffer solution and internal digestive fluid were injected, a digestion and absorption simulation was performed, including the gastric digestion stage, the small intestinal digestion stage, and the large intestinal digestion stage. The gastric digestion stage is as follows: 1-2g of feed sample is crushed to 60 mesh and placed in a dialysis bag. 20mL of gastric digestion fluid is added, and the glass digester is sealed. Then, the peristaltic pump is started to circulate the gastric buffer solution. The shaking temperature is set to 39℃, the rotation speed is 180rpm / min, and the digestion time is 3 hours. The small intestine digestion stage is as follows: After the gastric digestion stage is completed, 1500 mL of deionized water is injected through a peristaltic pump and the mixture is rinsed 3 times, 40 minutes each time, until the gastric residual fluid is emptied; then switch to the small intestine buffer solution, inject 3 mL of small intestine digestion fluid through a peristaltic pump, and reduce the shaker speed to 120 rpm / min; The large intestine digestion stage is as follows: After the small intestine digestion stage is completed, repeat the cleaning steps 3 times, each time for 40 minutes, until the residual fluid in the small intestine is emptied. Then switch to the large intestine buffer solution and inject 3 mL of large intestine digestion solution through a peristaltic pump. Set the digestion time to 21 hours and reduce the shaker speed to 60 rpm / min. Ultimately, this completes the digestion and absorption process in the animal's digestive tract.

5. The digestible quality analysis system for chicken feed according to claim 4, characterized in that, The solution control unit is also used for: When controlling the digestion fluid and buffer solution, the corresponding hardware equipment includes a peristaltic pump, a solenoid valve, and a constant temperature water tank; The system utilizes four sets of peristaltic pumps to control the flow rate and velocity of gastric buffer solution, washing fluid, small intestinal digestive fluid, and large intestinal digestive fluid; eleven sets of solenoid valves to control the direction of liquid flow; and a constant temperature water tank to maintain the temperature of the buffer solution with an error of ≤0.4℃.

6. The digestible quality analysis system for chicken feed according to claim 1, characterized in that, The solution control unit is also used for; The device simulation state parameters at each moment within the current solution input cycle are integrated, and each type of device simulation state parameter is classified to obtain a set of classified state parameters. The device simulation state parameters corresponding to each sub-category state parameter set in the classification state parameter set are input into the same coordinate system according to the time sequence, and curve fitting is performed according to the simulation accuracy to obtain the simulation state curve of the current type of device simulation state parameters in the current solution input cycle. The parameter stability performance of the corresponding equipment simulation state parameters is determined by comprehensively considering the curve change trend and the degree of curve fluctuation of each simulation state curve. If there are device simulation state parameters in the simulation state curve that exceed the preset standard parameter range, and the corresponding parameter stability performance is less than the preset minimum stability performance, then the parameter value corresponding to the device simulation state parameter that exceeds the preset standard parameter range will be used as the correction parameter value. The parameter difference is obtained by determining the parameter difference between the corrected parameter value and the corresponding preset standard parameter range threshold. The correction parameter difference is compared one by one with the preset correction database to determine the solution adjustment input scheme corresponding to the current correction parameter difference; The input of digestion solution and buffer solution is controlled and adjusted based on the solution adjustment input scheme.

7. The digestible quality analysis system for chicken feed according to claim 3, characterized in that, The analog control unit is also used for: Equipment for simulating and controlling the temperature environment of the digestive tract includes a constant temperature water tank, an air bath shaker, and temperature sensors. The temperature control process is as follows: one hour before the simulation experiment, the constant temperature water tank is started and the target temperature is set according to the animal type. After the target temperature is set, the temperature is controlled in sequence according to the physical structure of the animal's digestive tract. After the experiment, the heating mode is turned off and the cooling fan is turned on to cool down. The control of digestive tract mixing movement was achieved by using an air bath shaker to set the rotation speed for the physical structure of each animal's digestive tract and monitoring the rotation speed in real time. If the rotation speed fluctuated by more than ±5 rpm / min, an automatic alarm was triggered and the experiment was paused.

8. The digestible quality analysis system for chicken feed according to claim 7, characterized in that, The simulation process monitoring unit is also used for: During the simulation process, the monitoring system of the quality analysis equipment collects data in real time through hardware sensors and displays the collected real-time data on the control panel. The control panel displays parameters dynamically, including a temperature monitoring area, a liquid state area, and a mixed motion area. The control panel displays the temperature of the constant temperature water tank, the temperature of the air bath shaker, and the temperature inside the digester in real time, updating once per second; the liquid status area displays the peristaltic pump flow rate, the solenoid valve on / off status, and the remaining amount of cleaning fluid; the mixed motion area displays the shaker speed and oscillation mode in real time, and records the average speed every 5 minutes. Finally, anomaly analysis is performed on the collected real-time data, and an alarm mechanism is automatically triggered when abnormal temperature, liquid leakage, or mixing cessation occurs. Specifically, when the temperature deviation is greater than ±0.8℃, a buzzer alarm is triggered; when the temperature deviation is greater than ±1.2℃, the experiment is forcibly paused. When the weight sensor detects an abnormal increase in the weight of the waste liquid bottle, it is determined that there is a leak in the pipeline, and all solenoid valves are closed. The waste liquid bottle is installed at the end of the discharge pipeline of the cleaning liquid, and a weight sensor is installed at the bottom of the waste liquid bottle. When the shaking speed remains at 0 rpm for more than 2 minutes, it is determined that there is a motor failure, an alarm is triggered, and the downtime is recorded. Finally, the real-time acquisition of monitoring data for the simulation process was completed.

9. The digestible quality analysis system for chicken feed according to claim 8, characterized in that, The sample acquisition unit is also used for: After the digestion simulation experiment is completed, turn off the peristaltic pump and solenoid valve, remove the glass digester from the air bath shaker, disconnect the buffer tubing, cut the dialysis bag longitudinally, remove the residue, and rinse the inner wall with deionized water. If there is any residue adhering to the dialysis bag, gently scrape it into the culture dish with a moistened cotton swab. Place the petri dish containing the residue into a 65℃ electric heating forced-air drying oven and dry at a low temperature for 12-14 hours. After the residue is dried at a low temperature, it is degreased. The degreased residue is then dried at a high temperature. The high-temperature drying is to place the degreased residue together with the glass sand crucible into a 105℃ electric heating forced-air drying oven and dry it to constant weight. After high-temperature drying, weigh 0.5-1g of the residue and package it into a sample.

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