Undergrowth ecological breeding method of high-quality meihua pig

Abstract

This invention discloses a method for raising high-quality Meihua pigs in an ecological forest environment, belonging to the field of forest ecological farming technology. The invention selects forest land with ample sunshine, convenient water supply, 50%–65% summer shade, and a slope of less than 15°. Square grazing areas and pig pens are set up within the forest land. Orderly grouping of pigs is achieved through diversion zones and openable / closable fences. The grazing area is divided into multiple grazing zones, separated by a double-wire mesh structure interspersed with mosquito-repellent plants. Shallow drinking pools are provided within each zone. The breeding process is implemented in three stages according to age, with staggered grazing. Tea polyphenols are added to the daily feed at each stage with progressively reduced amounts. Management measures include 5–7 days of rotational grazing and grazing bans during inclement weather. This invention features a reasonable layout, low cost, and can significantly improve the lean meat percentage and growth rate of Meihua pigs. At 12 months of age, boars can reach an average weight of over 90 kg and a lean meat percentage of over 50%, producing excellent meat quality and being environmentally friendly, making it suitable for large-scale ecological farming of Meihua pigs.

Description

Technical Field

[0001] This invention relates to the field of forest-based ecological farming technology for livestock and poultry, specifically a method for raising high-quality sika pigs in forest-based ecological farming. Background Technology

[0002] Meihua pigs are a superior local breed from Meihua Town, Lechang City, Guangdong Province. They are characterized by their small size, tolerance to roughage, strong adaptability, good maternal instincts, and long productive lifespan. Their thin skin, tender and smooth meat, and rich, pure flavor make them a high-quality specialty meat pig resource. However, this breed suffers from slow growth and low lean meat percentage, which hinders its industrial development.

[0003] Currently, most pig farming under forest cover adopts extensive free-range grazing or fixed-area grazing, which has the following shortcomings:

[0004] 1. If the duration of free-range rearing does not match the age of the animals, it can easily lead to stunted growth or excessive fat deposition;

[0005] 2. The layout of the farm is unreasonable, resulting in low efficiency in transferring and returning pigs to their pens, and high construction costs;

[0006] 3. The lack of a zoned and time-based rotation mechanism makes forest land prone to degradation and mosquito breeding;

[0007] 4. Due to the lack of precise nutritional regulation methods, it is difficult to balance lean meat percentage and growth rate.

[0008] Current technologies lack an integrated ecological farming solution for sika pigs that combines age-appropriate and time-based free-range grazing, zoned rotational grazing, and precise tea polyphenol supplementation, making it difficult to achieve a dual improvement in growth rate and lean meat percentage. Therefore, developing a low-cost, high-efficiency forest-based ecological farming method that is suitable for the physiological characteristics of sika pigs is of great value. Summary of the Invention

[0009] This invention provides a method for raising high-quality plum blossom pigs in an ecological forest environment, which solves the problems of slow growth, low lean meat percentage, unreasonable use of forest land, and high construction costs in traditional breeding, and achieves the breeding goals of plum blossom pigs with fast growth, high lean meat percentage, excellent meat quality, and ecological environmental protection.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A method for raising high-quality sika pigs in an ecological forest environment includes the following steps:

[0012] S1. Select a sunny woodland with convenient water supply; enclose a square grazing area in the woodland with partitions, and build a pigsty on one side in front of the square grazing area; the square grazing area is divided into multiple independent grazing areas by a partition structure, including multiple grazing area one and multiple grazing area two; a diversion area is set between the pigsty and the square grazing area, the pigsty exit is connected to the diversion area, and each grazing area is equipped with an entrance with an openable and closable fence that is connected to the diversion area;

[0013] S2. Sika pigs, 60-80 days old: After morning feeding, they are herded to the first grazing area for 1-1.5 hours, and then fed twice a day, at noon and in the evening. 81-120 days old: After morning feeding, they are grazed in the first grazing area for 1-1.5 hours, and after noon feeding, they are grazed in the second grazing area for 2-2.5 hours, and then fed in the evening. 121 days old until the day before slaughter: After morning feeding, they are grazed in the first grazing area for 1.5-2 hours, and after noon feeding, they are grazed in the second grazing area for 3.5-4 hours, and then fed in the evening.

[0014] Preferably, the summer shade of the woodland is 50%–65%, and the slope is less than 15°; when the slope is ≥5°, the pigsty is located on the lower side of the square grazing area.

[0015] Preferably, the partition structure is perpendicular to the side of the pigsty; the area of ​​free-range area one is 1 / 3–1 / 2 of that of free-range area two, and there are 4–5 of each.

[0016] Preferably, the partition structure consists of two rows of wire mesh, with one or more of the following planted in the middle: mugwort, mint, and artemisia.

[0017] Preferably, shallow pools are provided in both the first and second grazing areas.

[0018] Preferably, grazing should be stopped when the temperature is <9℃ or >36℃, or during rain, snow, hail, or strong winds.

[0019] Preferably, the diet is supplemented with tea polyphenols: 0.05%–0.1% for 60–80 days old; 0.02%–0.05% for 81–120 days old; and 0.01%–0.03% for children over 121 days old.

[0020] Preferably, the first grazing area and the second grazing area are used continuously for 5-7 days and then rotated. During the rotation, pig manure is cleaned up and the land is leveled.

[0021] Preferably, the feeding and grazing sequence is as follows:

[0022] 60–80 days old: Feed at 7:30–8:00, enter the free-range area at 9:00–9:30 for 1–1.5 hours, feed at 12:00–12:30, and feed at 19:00–19:30;

[0023] 81–120 days old: 7:30–8:00 feeding, 9:00–9:30 grazing in grazing area 1 for 1–1.5 hours, 12:00–12:30 feeding, 14:00–14:30 grazing in grazing area 2 for 2–2.5 hours, 19:00–19:30 feeding;

[0024] 121 days and older: Feed at 7:00–7:30, graze in grazing area 1 for 1.5–2 hours at 8:30–9:00, feed at 12:00–12:30, graze in grazing area 2 for 3.5–4 hours at 14:00–14:30, and feed at 19:00–19:30.

[0025] The forest-based ecological breeding method for high-quality sika pigs provided by this invention has the following beneficial effects:

[0026] 1. In the ecological forest-based breeding of sika pigs, this invention divides the grazing time of sika pigs into morning and afternoon periods, and reasonably controls the grazing time of each period. This ensures that the sika pigs have three meals and rest time, and also get an appropriate amount of exercise, so that the sika pigs can have a high growth rate while increasing the lean meat percentage.

[0027] 2. The square grazing area of ​​this invention is divided into a grazing area one for morning grazing and a grazing area two for afternoon grazing. This arrangement allows for more time to locate missing pigs if any pigs fail to return to their pens during morning or afternoon grazing, preventing disruption to their next grazing period. Furthermore, since the morning grazing period is shorter than the afternoon grazing period, grazing area one is smaller than grazing area two, thus making more efficient use of the grazing space.

[0028] In addition, by setting up multiple free-range areas 1 and multiple free-range areas 2, it is convenient to rotate the sika pigs in different free-range areas, which facilitates the ecological restoration of the free-range areas. Furthermore, since each partition structure is perpendicular to the side of the square free-range area close to the pigsty, each free-range area can be longer and narrower, which makes it easier to drive the sika pigs back to the pigsty.

[0029] 3. In this invention, mosquito-repellent plants are planted on the woodland between the two rows of wire mesh in the separation structure. Based on this, mosquito-repellent plants can be planted around the square free-range area and around the pigsty, which can have a more comprehensive mosquito-repellent effect on the entire square free-range area and effectively reduce mosquitoes in the free-range area.

[0030] 4. In raising sika pigs, this invention adds an appropriate amount of tea polyphenols to each meal of pig feed, which can further increase the lean meat rate of sika pigs and enhance their immunity.

[0031] 5. The square grazing area and pigsty of this invention are reasonably arranged, which is not only convenient for the grazing of plum pigs under the forest, but also convenient for the construction of pigsty, effectively controlling the construction cost.

[0032] 6. By using the forest-based ecological breeding method for plum blossom pigs of this invention, combined with conventional feeding, the average weight of 12-month-old male plum blossom pigs can reach over 90kg, the lean meat rate of the carcass can reach over 50%, and the resulting plum blossom pigs have tender, smooth meat with a rich flavor. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0034] Figure 1 This is a map showing the location distribution of the square grazing area and pigsty in the woodland of this invention;

[0035] In the diagram: 1. Square free-range area; 11. Free-range area one; 12. Free-range area two; 13. Separation structure; 131. Wire mesh; 132. Mosquito-repellent plants; 14. Fence; 2. Pigsty; 21. Exit; 3. Diversion area. Detailed Implementation

[0036] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0037] Example 1:

[0038] A method for raising high-quality sika pigs in an ecological forest environment includes the following steps:

[0039] (1) A forest land in Shaoguan, Guangdong Province was selected for the understory ecological breeding of Meihua pigs. The forest land is mainly composed of fir trees, as well as pine trees, camphor trees, etc. There are also shrubs and weeds in the forest. In summer, the shade of the forest land is between 55-60%. The forest land has a certain slope, with an overall slope of more than 5° but less than 10°, and it is a forest land with sufficient sunlight and convenient water supply.

[0040] A square grazing area is enclosed by partitions in the woodland, such as... Figure 1 As shown, a pigsty 2 is built on the woodland in front of the lower side of the square free-range area 1; the square free-range area 1 is divided into multiple independent free-range areas by a partition structure 13, each partition structure 13 being perpendicular to the side of the square free-range area 1 that is close to the pigsty 2. The partition structure 13 specifically includes two rows of wire mesh 131, and mosquito-repellent plants 132 are planted on the woodland between the two rows of wire mesh 131. The mosquito-repellent plants 132 are a mixture of artemisia and mint.

[0041] The free-range area specifically includes four free-range zones 11 and four free-range zones 22. The area of ​​any free-range zone 11 is 1 / 3 to 1 / 2 the area of ​​any free-range zone 22. Multiple shallow water pools are provided in free-range zones 11 and 22 for the sika pigs to drink from.

[0042] A diversion area 3 is enclosed by a partition between the pigsty 2 and the square free-range area 1. One of the exits 21 of the pigsty 2 is connected to one side of the diversion area 3. Each free-range area 11 and each free-range area 2 has an entrance connected to the diversion area 3 on its partition. Each entrance is equipped with an openable and closable fence 14.

[0043] (2) When the sika pigs are 60-80 days old, they are fed from 7:30 to 8:00 in the morning. From 9:00 to 9:30 in the morning, the sika pigs are driven from their exit to the diversion area 3, and then from the diversion area 3 to one of the grazing areas 11 for grazing (the fence 14 corresponding to the grazing area 11 is opened, the sika pigs enter the grazing area 11 and then the fence 14 is closed). After 1.5 hours, the sika pigs are driven back to the breeding pigsty 2. After that, they are not grazing again on the same day. They are fed once between 12:00 and 12:30 in the afternoon and once between 7:00 and 7:30 in the evening. In addition, 0.1% of the weight of tea polyphenols are added to the pig feed fed to the sika pigs in the morning, noon and evening.

[0044] When the sika pigs are between 81 and 120 days old, they are fed from 7:30 to 8:00 in the morning. From 9:00 to 9:30 in the morning, the sika pigs are moved from the diversion area 3 to one of the free-range areas 11 for grazing. After 1.5 hours, the sika pigs are moved back to the breeding pigsty 2. They are fed once between 12:00 and 12:30 at noon. From 2:00 to 2:30 in the afternoon, the sika pigs are moved from the diversion area 3 to one of the free-range areas 12 for grazing. After 2 hours, the sika pigs are moved back to the breeding pigsty 2. They are then fed once between 7:00 and 7:30 in the evening. In addition, 0.03% of the weight of tea polyphenols are added to the pig feed fed to the sika pigs in the morning, noon and evening.

[0045] When the sika pigs are over 121 days old, they are fed from 7:00 to 7:30 in the morning. From 8:30 to 9:00 in the morning, the sika pigs are moved from the diversion area 3 to one of the free-range areas 11 for grazing. After 2 hours, the sika pigs are moved back to the breeding pigsty 2. They are fed once between 12:00 and 12:30 at noon. From 2:00 to 2:30 in the afternoon, the sika pigs are moved from the diversion area 3 to one of the free-range areas 12 for grazing. After 3 hours, the sika pigs are moved back to the breeding pigsty 2. They are then fed once between 7:00 and 7:30 in the evening. In addition, 0.01% of tea polyphenols by weight are added to the pig feed fed to the sika pigs in the morning, noon and evening.

[0046] For the above-mentioned free-range grazing, each grazing area 11 is used to graze sika pigs for 5 consecutive days, and then another grazing area 11 is used to graze sika pigs for 5 consecutive days. The 4 grazing areas 11 are rotated for grazing sika pigs. After a grazing area 11 has been used to graze sika pigs for 5 consecutive days, the sika pig manure in the grazing area 11 is collected and the pits and depressions in the forest land are leveled.

[0047] Each grazing area 212 is used to graze sika pigs for 7 consecutive days, and then another grazing area 212 is used to graze sika pigs for 7 consecutive days. The grazing of sika pigs is carried out in rotation among the four grazing areas 212. After a grazing area 212 has been used to graze sika pigs for 7 consecutive days, the sika pig manure in that grazing area 212 is collected and the pits and depressions in the forest land are leveled.

[0048] Among them, when the weather is rainy, snowy, hailous, windy, or when the temperature is below 9℃ or above 36℃, if the plum blossom pigs have not been freed up, they will not be freed up. If they have been freed up, they will be driven back to the pigsty 2. Even if the weather improves, the plum blossom pigs will not be driven out to graze.

[0049] Example 2:

[0050] In Example 1, another batch of sika pigs was raised in the same pigsty. This batch of sika pigs was separately marked and grazed together with the sika pigs in Example 1. The raising method differed from that in Example 1. When the sika pigs were 60-80 days old, 0.05% of their weight of tea polyphenols were added to their feed in the morning, noon and evening. When the sika pigs were 81-120 days old, 0.05% of their weight of tea polyphenols were added to their feed in the morning, noon and evening. From 121 days old until the day before slaughter, 0.03% of their weight of tea polyphenols were added to their feed in the morning, noon and evening.

[0051] Example 3:

[0052] In Example 1, when raising the plum blossom pigs, another batch of plum blossom pigs was raised in the same pigsty. This batch of plum blossom pigs was also marked separately and was taken out to graze together with the plum blossom pigs in Example 1. The difference in the raising method from Example 1 is that the plum blossom pigs marked separately were fed separately after returning to the pigsty, and no tea polyphenols were added to their feed.

[0053] Comparative Example 1:

[0054] In Example 1, a batch of sika pigs were raised in pigsty 2. The difference in the raising method compared to Example 1 is that the sika pigs were not free-range.

[0055] Comparative Example 2:

[0056] After completing the breeding of sika pigs in Example 1, another batch of sika pigs was raised in the breeding pigsty 2 in Example 1. The breeding method was different from that in Example 1. From 60 days to the day before slaughter, the sika pigs were fed from 7:30 to 8:00 in the morning. From 9:00 to 9:30 in the morning, the sika pigs were driven from the diversion area 3 to one of the free-range areas 212 for free-range grazing. From 5:30 to 6:00 in the afternoon, the sika pigs were driven back to the breeding pigsty 2 and then fed once from 7:00 to 7:30 in the evening.

[0057] Example 4:

[0058] A method for raising high-quality sika pigs in an ecological forest environment includes the following steps:

[0059] (1) A lychee forest in Shaoguan, Guangdong Province was selected for the understory ecological breeding of plum blossom pigs. In summer, the lychee forest has a shade of 50-60%, is flat, and has a slope of less than 3°. It has plenty of sunshine and convenient water supply.

[0060] A square free-range area 1 is enclosed by partitions in the woodland. A pigsty 2 is built on the woodland in front of one side of the square free-range area 1. The square free-range area 1 is divided into multiple independent free-range areas by a partition structure 13. Each partition structure 13 is perpendicular to the side of the square free-range area 1 that is close to the pigsty 2. The partition structure 13 specifically includes two rows of wire mesh 131. Mosquito-repellent plants 132 are planted on the woodland between the two rows of wire mesh 131. The mosquito-repellent plants 132 are Artemisia argyi.

[0061] The free-range area specifically includes five free-range zones 11 and five free-range zones 2, with the area of ​​any free-range zone 11 being 1 / 3 to 1 / 2 the area of ​​any free-range zone 2. Multiple shallow water pools are provided in both free-range zones 11 and 2 for the sika pigs to drink from.

[0062] A diversion area 3 is enclosed by a partition between the pigsty 2 and the square free-range area 1. One of the exits of the pigsty 2 is connected to one side of the diversion area 3. Each free-range area 11 and each free-range area 2 has an entrance connected to the diversion area 3 on its partition. Each entrance is equipped with an openable and closable fence 14.

[0063] (2) When the sika pigs are 60-80 days old, they are fed from 7:30 to 8:00 in the morning. From 9:00 to 9:30 in the morning, the sika pigs are driven from their exit to the diversion area 3, and then from the diversion area 3 to one of the grazing areas 11 for grazing (the fence 14 corresponding to the grazing area 11 is opened, the sika pigs enter the grazing area 11 and then the fence 14 is closed). After 1 hour, the sika pigs are driven back to the breeding pigsty 2. After that, they are not grazing again on the same day. They are fed once between 12:00 and 12:30 in the afternoon and once between 7:00 and 7:30 in the evening. In addition, 0.08% of the mass of tea polyphenols are added to the pig feed fed to the sika pigs in the morning, noon and evening.

[0064] When the sika pigs are between 81 and 120 days old, they are fed from 7:30 to 8:00 in the morning. From 9:00 to 9:30 in the morning, the sika pigs are moved from the diversion area 3 to one of the free-range areas 11 for grazing. After 1 hour, the sika pigs are moved back to the breeding pigsty 2. They are fed once between 12:00 and 12:30 at noon. From 2:00 to 2:30 in the afternoon, the sika pigs are moved from the diversion area 3 to one of the free-range areas 12 for grazing. After 2.5 hours, the sika pigs are moved back to the breeding pigsty 2. They are then fed once between 7:00 and 7:30 in the evening. In addition, 0.02% of the weight of tea polyphenols are added to the pig feed fed to the sika pigs in the morning, noon and evening.

[0065] When the sika pigs are over 121 days old, they are fed from 7:00 to 7:30 in the morning. From 8:30 to 9:00 in the morning, the sika pigs are moved from the diversion area 3 to one of the free-range areas 11 for grazing. After 1.5 hours, the sika pigs are moved back to the breeding pigsty 2. They are fed once between 12:00 and 12:30 at noon. From 2:00 to 2:30 in the afternoon, the sika pigs are moved from the diversion area 3 to one of the free-range areas 12 for grazing. After 3.5 hours, the sika pigs are moved back to the breeding pigsty 2. They are then fed once between 7:00 and 7:30 in the evening. In addition, 0.01% of tea polyphenols by weight are added to the pig feed fed to the sika pigs in the morning, noon and evening.

[0066] For the above-mentioned free-range grazing, each grazing area 11 is used to graze sika pigs for 7 consecutive days, and then another grazing area 11 is used to graze sika pigs for 7 consecutive days. The 5 grazing areas 11 are rotated for grazing sika pigs. After a grazing area 11 has been used to graze sika pigs for 7 consecutive days, the sika pig manure in the grazing area 11 is collected and the pits and depressions in the forest land are leveled.

[0067] Each grazing area 212 is used to graze sika pigs for 5 consecutive days, and then another grazing area 212 is used to graze sika pigs for 5 consecutive days. The grazing of sika pigs is carried out in rotation among the 5 grazing areas 212. After a grazing area 212 has been used to graze sika pigs for 5 consecutive days, the sika pig manure in that grazing area 212 is collected and the pits and depressions in the forest land are leveled.

[0068] Among them, when the weather is rainy, snowy, hailous, windy, or when the temperature is below 9℃ or above 36℃, if the plum blossom pigs have not been freed up, they will not be freed up. If they have been freed up, they will be driven back to the pigsty 2. Even if the weather improves, the plum blossom pigs will not be driven out to graze.

[0069] Example 5:

[0070] In Example 3, when raising the plum blossom pigs, another batch of plum blossom pigs was raised in the pigsty 2 at the same time. This batch of plum blossom pigs was marked separately and was taken out to graze together with the plum blossom pigs in Example 3. The difference in the raising method from Example 3 is that the plum blossom pigs marked separately were fed separately after returning to the pigsty 2, and no tea polyphenols were added to the pig feed.

[0071] Comparative Example 3:

[0072] In Example 3, a batch of sika pigs were raised in pigsty 2. The difference in the raising method compared to Example 3 is that the sika pigs were not free-range.

[0073] Comparative Example 4:

[0074] After completing the breeding of plum blossom pigs in Example 3, another batch of plum blossom pigs was raised in the breeding pigsty 2 in Example 3. The breeding method was different from that in Example 3. From the 60th day to the day before slaughter, after feeding in the morning and at noon, the plum blossom pigs were driven from the diversion area 3 to one of the free-range areas 212 for free-range grazing between 2:00 pm and 2:30 pm. Between 5:30 pm and 6:00 pm, the plum blossom pigs were driven back to the breeding pigsty 2, and then fed once between 7:00 pm and 7:30 pm.

[0075] In Examples 1-5 and Comparative Examples 1-4, the sika pig boars were fed conventional sika pig feed, primarily consisting of green fodder supplemented with grain feed. The feed formulas and daily feed intakes were similar. The sika pigs were raised in pigsty 2 using conventional methods.

[0076] The sika boars in Examples 1-5 and Comparative Examples 1-4 were all slaughtered at 12 months of age. Ten sika boars were randomly selected from the sika boars in Examples 1-5 and Comparative Examples 1-4, weighed, and their average weight was calculated. They were then slaughtered, and the average lean meat percentage of the carcass was calculated. The specific results are shown in Table 1.

[0077] Table 1:

[0078] Average weight of plum blossom pigs (kg / head) Lean meat percentage of carcass (%) Example 1 95.6 53.8 Example 2 94.7 53.6 Example 3 93.1 50.1 Comparative Example 1 99.3 38.8 Comparative Example 2 78.2 54.2 Example 4 93.2 52.7 Example 5 93.8 51.9 Comparative Example 3 97.2 38.1 Comparative Example 4 79.1 53.6

[0079] As shown in Table 1, the method for raising Sika pigs in forest-based ecological farming according to the present invention can achieve an average weight of over 90 kg for 12-month-old male Sika pigs and a lean meat percentage of over 50%. However, comparisons between Example 1 and Comparative Examples 1-2, and between Example 4 and Comparative Examples 3-4, show that while not grazing the Sika pigs increases the average weight, the lean meat percentage is lower, below 39%, and the pork quality is far inferior to that of the Sika pigs raised using the present invention. Grazing the Sika pigs directly from morning to afternoon does not significantly increase the lean meat percentage but significantly reduces the average weight, thus affecting economic benefits. Furthermore, comparisons between Example 1 and Example 3, and between Example 4 and Example 5, show that adding an appropriate amount of tea polyphenols to the pig feed can further increase the lean meat percentage of the Sika pigs and may also promote their growth to some extent.

[0080] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for raising high-quality plum blossom pigs in an ecological forest environment, characterized in that, Includes the following steps: S1. Select a sunny woodland with convenient water supply; enclose a square grazing area in the woodland with partitions, and build a pigsty on one side in front of the square grazing area; the square grazing area is divided into multiple independent grazing areas by a partition structure, including multiple grazing area one and multiple grazing area two; a diversion area is set between the pigsty and the square grazing area, the pigsty exit is connected to the diversion area, and each grazing area is equipped with an entrance with an openable and closable fence that is connected to the diversion area; S2. Sika pigs, 60-80 days old: After morning feeding, they are herded to the first grazing area for 1-1.5 hours, and then fed twice a day, at noon and in the evening. 81-120 days old: After morning feeding, they are grazed in the first grazing area for 1-1.5 hours, and after noon feeding, they are grazed in the second grazing area for 2-2.5 hours, and then fed in the evening. 121 days old until the day before slaughter: After morning feeding, they are grazed in the first grazing area for 1.5-2 hours, and after noon feeding, they are grazed in the second grazing area for 3.5-4 hours, and then fed in the evening.

2. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, In summer, the shade coverage of the woodland should be 50%–65%, and the slope should be less than 15°. When the slope is ≥5°, the pigsty should be located on the lower side of the square free-range area.

3. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, The partition structure is perpendicular to the side of the pigsty; the area of ​​free-range area one is 1 / 3 to 1 / 2 of that of free-range area two, and there are 4 to 5 of each area.

4. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, The partition consists of two rows of wire mesh, with one or more of the following planted in the middle: mugwort, mint, and artemisia.

5. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, Shallow pools are set up in both free-range areas 1 and 2.

6. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, Stop releasing livestock when the temperature is below 9℃ or above 36℃, or during rain, snow, hail, or strong winds.

7. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, Dietary supplementation with tea polyphenols: 0.05%–0.1% for 60–80 days old; 0.02%–0.05% for 81–120 days old; and 0.01%–0.03% for 121 days old and above.

8. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, After using free-range area one and free-range area two for 5-7 consecutive days, they should be rotated. During the rotation, pig manure should be cleaned up and the land leveled.

9. The method for raising high-quality plum blossom pigs in forest-based ecological farming according to claim 1, characterized in that, The feeding and grazing sequence is as follows: 60–80 days old: Feed at 7:30–8:00, enter the free-range area at 9:00–9:30 for 1–1.5 hours, feed at 12:00–12:30, and feed at 19:00–19:30; 81–120 days old: 7:30–8:00 feeding, 9:00–9:30 grazing in grazing area 1 for 1–1.5 hours, 12:00–12:30 feeding, 14:00–14:30 grazing in grazing area 2 for 2–2.5 hours, 19:00–19:30 feeding; 121 days and older: Feed at 7:00–7:30, graze in grazing area 1 for 1.5–2 hours at 8:30–9:00, feed at 12:00–12:30, graze in grazing area 2 for 3.5–4 hours at 14:00–14:30, and feed at 19:00–19:30.

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