Regulation and control method for dynamic feeding of nursery piglets
By dynamically adjusting the feed-water mixing ratio, a multimodal data-driven dynamic feeding model was constructed, which solved the weaning stress problem caused by fixed-ratio feeding and improved the growth performance and digestive absorption efficiency of piglets.
Patent Information
- Application Number
- CN202511760921.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-01-02
AI Technical Summary
In the existing technology, the feeding method with a fixed feed-water mixing ratio cannot effectively reduce weaning stress after piglets are weaned, resulting in decreased feed intake and increased diarrhea rate, which seriously affects the survival rate and growth efficiency during the nursery period and the subsequent fattening period.
A feeding method that dynamically adjusts the feed-water mixing ratio based on piglet weight, age, health status, and environmental factors is adopted. By constructing a multimodal data-driven dynamic feeding model, the feed-water mixing ratio is optimized in real time to achieve optimal digestion and absorption.
It significantly improved the growth performance of piglets, reduced the diarrhea rate, increased feed intake and feed utilization, and optimized digestion and absorption.
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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of nursing piglet feeding, in particular to a kind of dynamic feeding regulation method of nursing piglet. BACKGROUND
[0002] After weaning piglet, due to the change of food source and feeding behavior, a series of changes such as digestive physiology, immune function and intestinal microflora occur, such as decreased feed intake, increased diarrhea rate, growth stagnation, which seriously affects the growth rate and growth efficiency during the nursing period and the fattening period. Studies have shown that wet feed can soften feed, and its pre-gelatinization effect is significant in promoting digestion, increasing feed intake and feed utilization, which can effectively reduce the weaning stress of piglets and improve the production performance of nursing piglets. However, in the prior art, fixed feed-water mixing ratio is used for feeding, and the production performance of nursing piglets is limited.
[0003] Therefore, it is an urgent problem for the present application to provide a feeding method that can dynamically adjust the feed-water mixing ratio of piglets according to their body weight, age, health status and environmental factors, to achieve "water promoting feed, optimal digestion and absorption". SUMMARY
[0004] The present application provides a kind of dynamic feeding regulation method of nursing piglet, to solve the problems existing in the above background technology.
[0005] In order to achieve the above technical purpose, the present application mainly adopts the following technical scheme: The present application discloses a kind of dynamic feeding regulation method of nursing piglet, comprising the following steps: Step 1, according to the growth of nursing piglet, stage feed-water mixed feeding is carried out, and the growth stage data, health score data and environmental parameter data of nursing piglet are collected in real time; Step 2, based on the growth stage data, health score data and environmental parameter data of nursing piglet, the nutrient digestion and metabolism capacity of nursing piglet is evaluated, and a multi-modal data driven dynamic feeding model is constructed, and the feed-water mixing ratio is adjusted in time; Step 3, according to the historical feed-water mixing ratio and monitoring data, the dynamic feeding model is optimized.
[0006] In the preferred embodiment of the present application, in step 1, according to the body weight and age of nursing piglet, it is divided into three stages, the first stage is weaning transition period, the second stage is digestion adaptation period, and the third stage is rapid growth period, the weaning transition period is from weaning to the 7th day, the digestion adaptation period is from weaning to the 8th day to the weight growth of 15kg, and the rapid growth period is from the weight of 15kg to the end of the nursing period.
[0007] Preferably, in step 1, the step-by-step feed-water mixing feeding method comprises the following steps: Step 11, determining the correlation between the growth performance indicators of the nursery piglets and different feed-water mixing ratios; and, Step 12, determining the range of dynamically adjusted water-feed ratios for each stage of the nursery piglets according to the correlation; The growth performance indicators include daily weight gain and feed conversion ratio.
[0008] In a preferred embodiment of the present application, in step 2, the method for constructing the dynamic feeding model comprises the following steps: Step 22, collecting the growth stage data of the nursery piglets in real time, and evaluating the digestive capacity and growth efficiency of the nursery piglets; Step 23, setting multiple types of feeding modes based on the growth stages and nutritional needs of the nursery piglets; Step 24, based on the multi-modal data fusion of the growth stage data, health score data and environmental parameter data, analyzing and quantifying the structure-activity relationship between the growth performance of the nursery piglets and different feed-water mixing ratios under multiple factor conditions, and constructing a dynamic feed-water mixing feeding model for the nursery piglets at different stages.
[0009] Preferably, the growth stage data includes the body weight and feed intake data of the nursery piglets, the health score data includes the body weight gain and diarrhea rate data of the piglets, and the environmental parameter data includes the temperature of the feeding environment.
[0010] Further, in step 22, evaluating the digestive capacity and growth efficiency of the nursery piglets comprises the following steps: Step 221, obtaining the body weight and feed intake data of the nursery piglets, comparing the feed intake ranges of the nursery piglets with different body weights, and analyzing their appetite and digestive conditions; Step 222, calculating the growth rate and feed conversion ratio of the nursery piglets during a certain period of time based on the body weight changes and feed consumption during the period, and determining the conditions for triggering dynamic adjustment of the feed-water mixing ratio.
[0011] Further, in step 23, the multiple types of feeding modes include free feeding, high daily ration feeding, standard daily ration feeding or weak piglet feeding mode.
[0012] Further, in step 24, constructing the dynamic feed-water mixing feeding model for the nursery piglets at different stages comprises the following steps: Step 241, obtaining the growth stage data, environmental parameter data and health score data of the nursery piglets during the current feeding period, and sequentially performing cleaning, outlier and standardization preprocessing; Step 242, a multiple linear regression equation is constructed to take the growth efficiency as a target variable, and linear influences of different feed-water mixing ratios, growth parameters and environmental parameters on the growth efficiency are quantified respectively, and a dynamic feeding model of different stages of the weaned piglets under the multiple-factor condition is constructed.
[0013] Compared with the prior art, the application has the following beneficial effects: The dynamic feeding model constructed by the application can dynamically adjust the feed-water mixing ratio during the feeding of the piglets according to the body weight, age, health condition and environmental factors of the piglets, can realize the optimization of the digestion and absorption by promoting the feed with water, and significantly improves the growth of the piglets. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical scheme and advantages of the application more clear and explicit, the application is further described in detail below with examples. It should be understood that the specific examples described herein are only used to explain the application, and are not used to limit the application.
[0015] Example 1, a dynamic feeding regulation method for weaned piglets, comprising the following steps: step 1, according to the growth of the weaned piglets, the piglets are fed by mixing feed and water in stages, and the growth stage data, health score data and environmental parameter data of the weaned piglets are collected in real time; According to the growth of the weaned piglets, the piglets are divided into three stages according to the body weight and age, the first stage is a weaning transition period, the second stage is a digestion adaptation period, and the third stage is a rapid growth period, wherein the weaning transition period is from weaning to the 7th day, the digestion adaptation period is from the 8th day after weaning to the growth of the piglets reaching 15 kg, and the rapid growth period is from the growth of the piglets reaching 15 kg to the end of the weaning period.
[0016] The method for feeding the piglets by mixing feed and water in stages comprises: Step 11, determining the correlation between the growth performance index of the weaned piglets and different feed-water mixing ratios; and Step 12, determining the range of the dynamically adjusted water-feed ratio of the weaned piglets in each stage according to the correlation; The growth performance index includes daily gain and feed-meat ratio.
[0017] Step 2, based on the growth stage data, health score data and environmental parameter data of the weaned piglets, the nutrient digestion and metabolism capacity of the weaned piglets is evaluated, a dynamic feeding model driven by multi-modal data is constructed, and the feed-water mixing ratio is adjusted in time; Specifically, the method for constructing the dynamic feeding model comprises the following steps: Step 22, collecting the growth stage data of the weaned piglets in real time, and evaluating the digestion capacity and growth efficiency of the weaned piglets; This step assesses the digestive capacity and growth efficiency of nursery piglets, including the following steps: Step 221: Obtain the weight and feed intake data of weaned piglets, compare the feed intake range of weaned piglets at different weights, and analyze their appetite and digestion. Step 222: Calculate the growth rate and feed conversion ratio of piglets during a certain period by analyzing their weight changes and feed consumption, and determine the conditions that trigger dynamic adjustment of the feed-water mixing ratio.
[0018] Step 23: Based on the growth stage and nutritional needs of weaned piglets, set up multiple types of feeding patterns; Among them, the various feeding modes include free access, high-ration feeding, standard-ration feeding, or feeding mode for weak piglets.
[0019] Free access to feed means that piglets can eat any amount of feed at any time as needed; high-ration-quota feeding means that piglets are fed a fixed amount of feed at regular times according to a feeding method that exceeds the standard feed intake; standard-ration-quota feeding means that piglets are fed a fixed amount of feed at regular times according to a feeding method that meets the standard feed intake; weak piglet feeding pattern means that piglets are fed a fixed amount of feed at regular times according to a feeding method that exceeds the standard feed intake.
[0020] Step 24: Based on multimodal data fusion of growth stage data, health score data and environmental parameter data, analyze and quantify the structure-activity relationship between the growth performance of nursery piglets and different feed-water mixing ratios under multi-factor conditions, and construct a dynamic feeding model of feed-water mixing for nursery piglets at different stages.
[0021] In this embodiment, the growth stage data includes the weight and feed intake of the nursery piglets; the health score data includes the weight gain and diarrhea rate of the piglets; and the environmental parameter data includes the rearing environment temperature. The rearing temperature is generally 26–0.06 W; where W is the average weight of the nursery piglets.
[0022] Constructing a dynamic feeding model of feed-water mixture for piglets at different stages includes the following steps: Step 241: Obtain growth stage data, environmental parameter data, and health score data of the weaned piglets during the current feeding cycle, and perform cleaning, outlier detection, and standardization preprocessing in sequence; Step 242: Construct a multiple linear regression equation, with growth efficiency as the target variable, and quantify the linear effects of different feed-water mixing ratios, growth parameters and environmental parameters on growth efficiency, and construct a dynamic feeding model of feed-water mixing for different stages of nursery piglets under multi-factor conditions.
[0023] Step 3: Optimize the dynamic feeding model based on historical feed-water mixing ratios and monitoring data.
[0024] Test Example 1: Study on the effect of fixed feed-water feeding and dynamic feed-water feeding on the growth of piglets 1. Fixed feeding of feed-water mixture parameter setting for nursery piglets Select 270 healthy piglets with good growth and development, half male and half female, and similar weight, and randomly divide them into 9 groups, 30 in each group, 1 group in each pen. The parameters of the intelligent feeder are set according to Table 1. The pen area is 24 m 2 , the feeding density is 0.8 m 2 / head, and the nursery period is 35 days. Record daily feed intake, initial and final weight, environmental temperature and humidity, and calculate daily gain, feed conversion ratio and cost per weight gain. The nutritional composition of piglet feed is: CP≥15%; CF≤6%; Ash≤8%; Ca: 0.5%-1.2%; NaCl: 0.3%-0.9%; Lys≥0.9%; H2O≤14%.
[0025] Table 1: Group setting of feed-water mixing feeding parameters for piglets:
[0026] Table 2: Growth performance of nursery piglets with different feed-water mixing ratios:
[0027] From the data in Table 1 and Table 2, when the actual feed-water mixing ratio is 1:1.3, the daily gain and feed conversion ratio of nursery piglets are in the best state, and the best growth efficiency can be obtained.
[0028] 2. Dynamic feeding of feed-water mixture parameter setting for nursery piglets 280 healthy nursery pigs are divided into 7 groups, 40 in each group. Groups 1-6 are the test groups, and the nursery pigs in the test groups are fed with Da Beilong gruel feeders at different feed-water mixing ratios, with 1 feeder in each group. Group 7 is the control group, and the nursery pigs in the control group are fed with a fixed feed-water ratio of 1:1.3. The feed-water mixing ratios of test groups 1-5 are 1:1.4-1.0, 1:1.5-1.1, 1:1.8-1.2, 1:2.0-1.4, 1:3.0-1.5, and 1:4.0-2.0, respectively. The results are shown in Table 3. Based on the indicators of daily gain, feed conversion ratio and diarrhea rate, the optimal feed-water mixing ratio for nursery pigs is the 1:1.8-1.2 gradient change group, with a 28-day weight gain of 10.25±0.61 kg, a daily gain of 379.54±22.58 g, a feed conversion ratio of 1.26±0.08, and a diarrhea rate of 1.25%. The 1:1.4-1.0, 1:1.5-1.1, and 1:2.0-1.4 gradient change groups also have better daily gain performance, which is better than the fixed feed-water ratio control group.
[0029] Table 3: Growth performance of nursery piglets with different feed-water mixing ratios:
[0030] The above descriptions are only the preferred embodiments of the present application, not intended to limit the scope of the present application. Any modification or replacement made by any person skilled in the art within the technical scope of the present application should be covered within the scope of the present application.
Claims
1. A method for regulating dynamic feeding of nursery piglets, characterized in that, Includes the following steps: Step 1: Feed and water in stages according to the growth of the piglets, and collect growth stage data, health score data and environmental parameter data of the piglets in real time; Step 2: Based on the growth stage data, health score data and environmental parameter data of the nursery piglets, assess the nutrient digestion and metabolism capacity of the nursery piglets, construct a multimodal data-driven dynamic feeding model, and adjust the feed-water mixing ratio in a timely manner. Step 3: Optimize the dynamic feeding model based on historical feed-water mixing ratios and monitoring data.
2. The method for regulating dynamic feeding of nursery piglets according to claim 1, characterized in that, In step 1, the piglets are divided into three stages based on their weight and age: the first stage is the weaning transition period, the second stage is the digestive adaptation period, and the third stage is the rapid growth period. The weaning transition period is from weaning to the 7th day, the digestive adaptation period is from the 8th day after weaning until the piglets reach a weight of 15kg, and the rapid growth period is from when the piglets reach a weight of 15kg until the end of the nursery period.
3. The method for regulating dynamic feeding of nursery piglets according to claim 2, characterized in that, In step 1, the staged feed-water mixing feeding method includes: Step 11: Determine the correlation between growth performance indicators of nursery piglets and different feed-to-water ratios; and, Step 12: Determine the range of water-to-feed ratio for dynamic adjustment at each stage of the nursery piglets based on the aforementioned correlation; The growth performance indicators include daily weight gain and feed conversion ratio.
4. The method for regulating dynamic feeding of nursery piglets according to claim 1, characterized in that, Step 2, the method for constructing the dynamic feeding model, includes the following steps: Step 22: Collect real-time data on the growth stages of nursery piglets to assess their digestive capacity and growth efficiency; Step 23: Based on the growth stage and nutritional needs of weaned piglets, set up multiple types of feeding patterns; Step 24: Based on multimodal data fusion of growth stage data, health score data and environmental parameter data, analyze and quantify the structure-activity relationship between the growth performance of nursery piglets and different feed-water mixing ratios under multi-factor conditions, and construct a dynamic feeding model of feed-water mixing for nursery piglets at different stages.
5. The method for regulating dynamic feeding of nursery piglets according to claim 4, characterized in that, The growth stage data includes the weight and feed intake of nursery piglets; the health score data includes the weight gain and diarrhea rate of piglets; and the environmental parameter data includes the temperature of the rearing environment.
6. The method for regulating dynamic feeding of nursery piglets according to claim 5, characterized in that, Step 22 assesses the digestive capacity and growth efficiency of nursery piglets, including the following steps: Step 221: Obtain the weight and feed intake data of weaned piglets, compare the feed intake range of weaned piglets at different weights, and analyze their appetite and digestion. Step 222: Calculate the growth rate and feed conversion ratio of piglets during a certain period by analyzing their weight changes and feed consumption, and determine the conditions that trigger dynamic adjustment of the feed-water mixing ratio.
7. The method for regulating dynamic feeding of nursery piglets according to claim 4, characterized in that, In step 23, the various feeding modes include free access, high-ration feeding, standard-ration feeding, or feeding mode for weak piglets.
8. The method for regulating dynamic feeding of nursery piglets according to claim 4, characterized in that, In step 24, a dynamic feeding model of feed-water mixture for different stages of nursery piglets is constructed, including the following steps: Step 241: Obtain growth stage data, environmental parameter data, and health score data of the weaned piglets during the current feeding cycle, and perform cleaning, outlier detection, and standardization preprocessing in sequence; Step 242: Construct a multiple linear regression equation, with growth efficiency as the target variable, and quantify the linear effects of different feed-water mixing ratios, growth parameters and environmental parameters on growth efficiency. Construct a dynamic feeding model of feed-water mixing for different stages of nursery piglets under multi-factor conditions.