Traditional Chinese medicine composition for promoting postpartum appetite increase of sows as well as preparation method and application of traditional Chinese medicine composition

Abstract

The invention discloses a traditional Chinese medicine composition for promoting postpartum appetite increase of sows as well as a preparation method and application of the traditional Chinese medicine composition. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 40 to 50 parts of radix acanthopanacis semticosi, 25 to 35 parts of herba plantaginis, 25 to 35 parts of radix paeoniae rubra, 10 to 20 parts of radix aucklandiae and 10 to 20 parts of fructus All the traditional Chinese medicines in the traditional Chinese medicine composition are medicinal and edible and have no toxic or side effect. Through the synergistic effect of the five traditional Chinese medicines, the feed additive can improve appetite peptide expression of sows, increase feed intake, accelerate postpartum internal organ function recovery, and promote pregnancy-induced in-vivo toxin discharge and postpartum body rehabilitation. In addition, the traditional Chinese medicine composition can improve the lactation yield of the sows, promote the growth of piglets and improve the economic benefits of sow breeding.

Description

Technical Field

[0001] The present invention relates to the technical field of feed additives, in particular to a traditional Chinese medicine composition for promoting increased appetite of postpartum sows, and a preparation method and application thereof. Background Art

[0002] As a multiparous animal, the birthing process places significant strain on the sow's internal organs, especially near the time of delivery, when the fetus grows rapidly. This not only places immense pressure on the sow's internal organs but also significantly impacts nutritional needs and the excretion of metabolic waste, particularly causing blood levels of metabolic waste to exceed normal values ​​by several times. Postpartum stress caused by pregnancy can cause the sow's internal organs to fail to recover quickly, leading to decreased feed intake and milk production, and thus impaired piglet growth. This is a common problem for multiparous sows (eight or more piglets). Therefore, promoting the recovery of the sow's internal organs and accelerating the excretion of metabolic waste after delivery is beneficial for the sow's postpartum recovery and piglet growth.

[0003] Therefore, it is of great significance to develop a feed additive that can promote the appetite of sows after parturition. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a traditional Chinese medicine composition for promoting the recovery of the internal organs of sows after childbirth and increasing appetite, as well as its preparation method and application, so as to solve the problem of decreased feed intake and reduced milk secretion in sows after childbirth, which affects the growth of piglets.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] The first aspect of the present invention provides a traditional Chinese medicine composition for promoting the increase of sow's appetite after parturition, comprising the following raw materials in parts by weight: 40-50 parts of Acanthopanax senticosus, 25-35 parts of Plantago, 25-35 parts of Red Peony Root, 10-20 parts of Aucklandia, and 10-20 parts of Citrus aurantium.

[0007] Furthermore, the invention comprises the following raw materials in parts by weight: 45 parts of Acanthopanax senticosus, 30 parts of Plantago, 30 parts of Red Peony Root, 15 parts of Aucklandia Radix, and 15 parts of Citrus Aurantii Immaturus. The formula ratio is Acanthopanax senticosus: Plantago: Red Peony Root: Aucklandia Radix: Citrus Aurantii Immaturus = 3:2:2:1:1.

[0008] In a second aspect, the present invention provides a method for preparing the above-mentioned Chinese medicine composition, comprising the following steps:

[0009] (1) Weigh the following raw materials according to weight: Acanthopanax senticosus, Aucklandia lappa, Fructus Aurantii Immaturus, Plantago asiatica, and Paeonia lactiflora;

[0010] (2) The weighed raw materials are mixed, crushed, and stirred to obtain the product.

[0011] Further, in step (2), the pulverization is performed by using a traditional Chinese medicine pulverizer, and the particle size after pulverization is 100-120 meshes; the stirring is performed by using a stirring machine for 20-40 minutes.

[0012] In a third aspect of the present application, a feed for increasing appetite of a sow after delivery is provided, wherein the feed comprises the traditional Chinese medicine composition according to claim 1 or 2.

[0013] Further, the weight ratio of the traditional Chinese medicine composition to the sow's daily feed is (3-6):1000.

[0014] Optionally, the sow's daily feed can be adjusted in stages according to the time after delivery, for example:

[0015] 1-3 days after delivery: the daily feed amount is controlled to be 1.5-2.5 kg, and the sow is fed in small amounts and multiple times;

[0016] 4-7 days after delivery: the feed amount is gradually increased to 3-4 kg per day, and the sow is fed in 3-4 times;

[0017] From the second week after delivery: the feed amount is increased to 5-7 kg per day to ensure the lactation demand;

[0018] The ratio in the daily feed can be referred to the following formula: corn 50%-55%, bran 10%-12%, rice bran 5%-8%, soybean meal 20%-22%, fish meal 3%-5%, bone meal 1.5%-2%, salt 0.3%-0.5%, and premix 2%-3%; the premix provides vitamins (A, D, E, B group), trace elements (selenium, iron, zinc), etc.

[0019] The ratio can be adjusted according to different requirements, which is not limited here.

[0020] The present application also provides the use of the traditional Chinese medicine composition in increasing appetite of a sow after delivery.

[0021] Further, the use comprises adding the traditional Chinese medicine composition to the sow's daily feed after delivery and mixing uniformly, wherein the weight ratio of the traditional Chinese medicine composition to the sow's daily feed is 3:1000 and 6:1000; the sow is continuously fed with the sow's daily feed mixed with the traditional Chinese medicine composition for 28 days.

[0022] The present application also provides the use of the traditional Chinese medicine composition in at least one of the following:

[0023] (1) increasing the content of orexin, gastrin, motilin, and serum digestive enzyme in sow's serum;

[0024] (2) inhibiting the secretion of cholecystokinin;

[0025] (3) reducing the intestinal permeability of a sow during lactation period;

[0026] (4) Improve liver function in postpartum sows;

[0027] (5) Improve milk fat levels in lactating sows.

[0028] Among them, serum digestive enzymes include α-amylase and lipase; reducing the intestinal permeability of lactating sows is specifically achieved by reducing the concentrations of diamine oxidase and D-lactic acid in the sow's serum; improving the milk fat level of lactating sows is specifically achieved by regulating the blood lipid content in the sow's serum; improving the liver function of postpartum sows includes reducing the levels of sow serum alkaline phosphatase, alanine aminotransferase and aspartate aminotransferase, as well as reducing serum creatinine and urea nitrogen levels.

[0029] The present invention also provides a method for increasing the appetite of a sow after parturition, comprising the following steps:

[0030] 1) According to production needs and in accordance with the weight ratio of the formula, weigh the following dry Chinese medicinal materials: Acanthopanax senticosus, Plantago, Red Peony Root, Aucklandia Root, and Fructus Aurantii Immaturus;

[0031] 2) After mixing the various Chinese medicines in the Chinese medicine composition, crushing them into fine powder using a Chinese medicine grinder, and crushing them into a fine powder with a particle size of 100-120 mesh;

[0032] 3) The crushed Chinese medicine composition powder is thoroughly mixed using a blender (mixing time is not less than 20 minutes);

[0033] 4) adding the mixed Chinese medicine composition powder to the sow diet;

[0034] 5) The ratio of the Chinese medicinal composition powder to the sow diet was 3:1000 and 6:1000, that is, 3 kg of the Chinese medicinal composition powder and 6 kg of the Chinese medicinal composition powder were added to 1000 kg of feed respectively;

[0035] 6) The prepared Chinese medicine composition powder and the sow diet are thoroughly mixed using a mixer (mixing time is not less than 30 minutes);

[0036] 7) Feeding the sows with the traditional Chinese medicine composition powder in the daily diet for 28 consecutive days can increase the sows' feed intake and milk production, promote the growth of piglets and improve the disease resistance of piglets.

[0037] Based on Traditional Chinese Veterinary clinical diagnosis, the present invention claims that pregnancy and delivery in sows consumes Qi and damages Yin, leading to postpartum Qi stagnation and blood stasis, internal organ Qi deficiency, and even Qi stagnation and weakened internal organ function. Based on Traditional Chinese Veterinary theory, the present invention formulates a prescription based on the principles of regulating Qi and activating blood circulation, promoting diuresis and detoxification, and regulating appetite. Acanthopanax senticosus, which regulates appetite and promotes digestion, serves as the monarch drug; costus root and fructus aurantii are selected as the assistant drugs for regulating Qi; red peony root, which promotes blood circulation and dissipates blood stasis, serves as the adjuvant; and plantain, which promotes diuresis and detoxification, serves as the guiding drug.

[0038] The beneficial effects of the present invention include at least:

[0039] The present invention provides a method that can effectively improve the sow's poor appetite and insufficient milk production after delivery, which affects the growth of piglets. The compound Acanthopanax senticosus powder is made by utilizing traditional veterinary theory, through syndrome differentiation and analysis of sows after delivery, according to the clinical syndrome differentiation of traditional Chinese veterinary medicine, sows' pregnancy and delivery process consumes qi and damages yin, resulting in qi stagnation and blood stasis after delivery, qi deficiency of internal organs, and even qi stagnation and weakened internal organ function. According to the theory of traditional Chinese veterinary medicine, this technology takes regulating qi and activating blood circulation, promoting diuresis and detoxification, and regulating appetite as the principles of formulating a compound medicine compound Acanthopanax senticosus. The Acanthopanax senticosus in the formula has the effects of regulating appetite and promoting digestion; costus root and fructus aurantii regulate qi and eliminate stagnation, and promote the recovery of gastrointestinal function; red peony root activates blood circulation and removes blood stasis, promotes pregnancy and postpartum blood stasis; plantain promotes diuresis and detoxification, and promotes the repair of sow's production internal organs and tissues. All the Chinese medicinal herbs in the Chinese medicine composition are of the same origin as medicine and food, without any toxic side effects. The synergistic effect of the five Chinese medicinal herbs can increase the sow's appetite peptide, promote the recovery of organ function, and accelerate the excretion of toxins in the body caused by pregnancy. The Chinese medicinal composition can promote the postpartum recovery of sows, increase milk secretion, promote the growth of piglets, and improve the economic benefits of sow farming. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The present invention relates to a preparation process of a Chinese medicine composition. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The solution proposed by the present invention is described in detail below through specific embodiments:

[0044] Example 1

[0045] Weigh 0.9 kg of Acanthopanax senticosus, 0.3 kg of Costus root, 0.3 kg of Fructus Aurantii Immaturus, 0.6 kg of Plantago asiatica, and 0.6 kg of Paeonia lactiflora, dry them thoroughly, mix and grind them into a particle size of 100-120 mesh.

[0046] The Chinese medicine composition powder is fully mixed with a blender for no less than 20 minutes.

[0047] Chinese medicine composition 1: Weigh 6 kg of Chinese medicine composition powder, add it to 1000 kg of sow diet, and mix thoroughly using a blender.

[0048] Chinese herbal composition 2: Weigh 3 kg of Chinese herbal composition powder, add it to 1000 kg of sow diet, and mix thoroughly using a blender.

[0049] The sow diet supplemented with the Chinese herbal medicine composition was divided into polyethylene bags, 20 kg per bag. The opened feed should be consumed within 3 days.

[0050] Example 2

[0051] In this example, the diet supplemented with the Chinese medicinal composition powder prepared in Example 1 was used as a sample for feeding investigation.

[0052] Pregnant sows were raised on an ecological farm, and 30 sows about to give birth were randomly divided into three groups: a normal control group, a Chinese medicine composition group 1, and a Chinese medicine composition group 2. After giving birth, each group began to be fed a diet containing the Chinese medicine composition, while the normal control group was fed a diet without the Chinese medicine composition for four consecutive weeks.

[0053] 1. Effect of Chinese herbal medicine combination powder on sow feed intake

[0054] As shown in Table 1, the cumulative total feed intake of sows treated with TCM composition 1 reached 167.8±4.962 kg throughout the 28-day lactation cycle, a significant increase (P < 0.01) compared to the normal control (152.5±2.316 kg). The average daily feed intake reached 5992±177.20 g, also significantly higher than the normal control (P < 0.01). TCM composition 2 also showed a significant improvement (P < 0.05). The experimental data indicate that the addition of TCM composition powder to feed can significantly increase the feed intake of lactating sows.

[0055] Table 1 Effect of Chinese herbal medicine combination powder on feed intake of lactating sows

[0056]

[0057] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, and **** indicates P < 0.0001.

[0058] 2. Effects of Chinese herbal medicine combination powder on piglet weight and survival rate

[0059] As shown in Table 2, the weaning weight of the piglets in the intervention groups (Chinese medicine composition 1 and Chinese medicine composition 2) was significantly higher than that of the normal control (P<0.05). Specifically, the average weight of the piglets in the Chinese medicine composition 1 group was 9.838±1.254 kg, that in the Chinese medicine composition 2 group was 9.850±0.9764 kg, and that in the normal control group was 8.841±1.086 kg. The survival rate monitoring results showed that the survival rate of the piglets in the Chinese medicine composition 1 group (98.89%) and the Chinese medicine composition 2 group (97.85%) was higher than that of the normal control group (95.40%). The above data confirmed that the addition of the Chinese medicine composition to the feed of the lactating sows can effectively increase the weaning weight of the piglets.

[0060] Table 2 Effect of Chinese medicine composition powder on the body weight and survival rate of the piglets during lactation

[0061]

[0062] Note: The data is represented as mean±SD (n=10). Compared with the control group, * represents P<0.05, ** represents P<0.01, *** represents P<0.001, and **** represents P<0.0001.

[0063] 3. Effect of Chinese medicine composition powder on the blood routine of the sows and piglets

[0064] The blood routine of the sows and piglets was detected by using a blood cell analyzer. As shown in Table 3, the white blood cell count of the sows in the Chinese medicine composition 1 group was significantly higher than that of the normal control (P<0.01), and the increase in the lymphocyte ratio reached a very significant level (P<0.001). However, the above-mentioned indexes of the Chinese medicine composition 2 group did not show significant changes. There was no statistical difference in the granulocyte ratio of the sows among the three groups. The white blood cell count, lymphocyte ratio, and granulocyte ratio of the piglets in each group did not show significant differences among the groups. In summary, the Chinese medicine composition 1 can increase the white blood cell level of the sows.

[0065] Table 3 Effect of Chinese medicine composition powder on the blood routine indexes of the sows and piglets during lactation

[0066]

[0067] Note: The data is represented as mean±SD (n=10). Compared with the control group, * represents P<0.05, ** represents P<0.01, *** represents P<0.001, and **** represents P<0.0001.

[0068] 4. Effect of Chinese medicine composition powder on the serum IgG and IgM of the piglets

[0069] ELISA kits were used to detect IgG and IgM in piglet serum. The results are shown in Table 4. Compared with the normal control, the serum IgG and IgM levels of lactating piglets treated with Chinese medicinal composition 2 were significantly increased (P < 0.05), while the IgG level of Chinese medicinal composition 1 showed an extremely significant increase (P < 0.01), and the IgM level reached a highly significant difference (P < 0.001). This indicates that the Chinese medicinal composition can effectively increase the serum immunoglobulin levels of lactating piglets through the breast milk of lactating sows, thereby enhancing their immune function.

[0070] Table 4 Effect of Chinese medicine combination powder on serum IgG and IgM levels in lactating piglets

[0071]

[0072] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, **** indicates P < 0.0001

[0073] 5. Effect of Chinese herbal medicine combination powder on sow serum appetite-regulating peptide

[0074] ELISA kits were used to detect the appetite-regulating peptides orexin, gastrin, motilin, and cholecystokinin in sow serum. The results, as shown in Table 5, indicate that the Chinese herbal mixture supplemented feed regulates gastrointestinal hormone production in lactating sows: Serum orexin levels in Chinese herbal composition 1 were significantly higher than those in the normal control group (P < 0.01), while no significant changes were observed in Chinese herbal composition 2. Gastrin and motilin levels in Chinese herbal composition 2 were significantly higher than those in the normal control group (P < 0.05), and gastrin and motilin levels in Chinese herbal composition 2 were extremely significantly increased (P < 0.01). Cholecystokinin levels in Chinese herbal composition 2 were extremely significantly lower than those in the normal control group (P < 0.001), while cholecystokinin levels in Chinese herbal composition 2 were significantly decreased (P < 0.01). These results suggest that the Chinese herbal mixture powder synergistically regulates the digestive physiological functions of lactating sows by upregulating the expression of orexin, gastrin, and motilin and inhibiting cholecystokinin secretion.

[0075] Table 5 Effects of Chinese herbal medicine combination powder on serum orexin, gastrin, motilin and cholecystokinin in lactating sows

[0076]

[0077] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, and **** indicates P < 0.0001.

[0078] 6. Effect of Chinese herbal medicine combination powder on sow serum digestive enzymes

[0079] The amount of digestive enzymes represents the body's digestive function. Amylase and lipase are two indicators for evaluating energy digestion. α-Amylase (AMS) was detected using the starch-iodine colorimetric method. Lipase (LPS) was detected using the methylresorufin substrate method. The results of sow serum α-amylase and lipase levels are shown in Table 6. Compared with the normal control, the α-amylase and lipase levels in Chinese herbal composition 2 were significantly increased (P < 0.01), while the levels of the two digestive enzymes in Chinese herbal composition 1 showed an extremely significant increase (P < 0.001). These results indicate that the Chinese herbal mixture powder has an effect on improving the serum digestive enzyme levels of lactating sows.

[0080] Table 6 Effects of Chinese herbal medicine combination powder on serum α-amylase and lipase in lactating sows

[0081]

[0082] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, and **** indicates P < 0.0001.

[0083] 7. Effects of Chinese herbal medicine combination powder on the intestinal barrier of sows

[0084] D-lactic acid (D-Lac) and diamine oxidase (DAO) are markers of intestinal barrier damage. Sow serum from each group was tested using D-Lac and DAO detection kits. The test results are shown in Table 7. The serum D-lactic acid activity in the TCM composition 2 group was significantly lower than that in the control group (P < 0.01), while the serum D-lactic acid concentration in the TCM composition 1 group was significantly lower than that in the control group (P < 0.001). These indicators confirm that the TCM mixture powder can reduce intestinal permeability in lactating sows.

[0085] Table 7 Effects of Chinese herbal medicine powder on serum diamine oxidase and D-lactic acid levels in lactating sows

[0086]

[0087] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, and **** indicates P < 0.0001.

[0088] 8. Effects of Chinese herbal medicine combination powder on lipid metabolism in sows

[0089] Lipid metabolism is a key indicator of milk fat levels in lactating sows, with blood lipids being the primary source of milk fat. Total cholesterol (T-CHO) and triglycerides (TG) were measured spectrophotometrically, while high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were measured using a microplate assay. The results are shown in Table 8. Compared with the normal control, total cholesterol and triglyceride levels were significantly increased in TCM composition 1 (P < 0.001), while those in TCM composition 2 were significantly increased (P < 0.01). HDL levels in both groups were significantly higher than those in the normal control (P < 0.001), while LDL levels decreased significantly with increasing dose (P < 0.001). This suggests that the addition of TCM mixture powder to feed can improve blood lipid levels in lactating sows by regulating key indicators of cholesterol metabolism.

[0090] Table 8 Effects of Chinese herbal medicine powder on serum lipids in lactating sows

[0091]

[0092] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, and **** indicates P < 0.0001.

[0093] 9. Effects of Chinese herbal medicine combination powder on liver and kidney function in sows

[0094] Alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (AKP) are key indicators of liver function, and were measured using a colorimetric method. Creatinine (CRE) and blood urea nitrogen (BUN) are key indicators of renal function, and were measured using the sarcosine oxidase and urease methods. Table 9 shows that compared with the normal control group, serum alkaline phosphatase levels were significantly reduced in both TCM compositions 1 and 2 (P < 0.01). ALT levels were significantly lower in TCM composition 1 compared with the normal control group (P < 0.01), while no significant difference was observed in TCM composition 2. AKP levels in both groups were significantly lower than those in the normal control group (P < 0.01). These results indicate that both TCM composition powders effectively inhibited serum alkaline phosphatase, ALT, and AKP levels in lactating sows. Renal function tests showed that compared with the normal control group, serum creatinine levels in lactating sows fed the herbal mixture powders, both herbal mixture 2 and herbal mixture 1, were significantly lower (P < 0.01), while the extent of reduction in serum urea nitrogen was different (P < 0.01). This suggests that the addition of herbal mixture powder to feed can effectively regulate the levels of renal function metabolic markers in lactating sows and significantly reduce the accumulation of serum creatinine and urea nitrogen.

[0095] These results indicate that the Chinese herbal composition powder can significantly reduce serum alkaline phosphatase, alanine aminotransferase, and aspartate aminotransferase levels in sows, as well as serum creatinine and urea nitrogen levels. Adding the Chinese herbal composition to postpartum sow feed can improve liver and kidney function.

[0096] Table 9 Effects of Chinese herbal mixture powder on liver and kidney function in lactating sows

[0097]

[0098] Note: Data are expressed as mean ± SD (n = 10). Compared with the control group, * indicates P < 0.05, ** indicates P < 0.01, *** indicates P < 0.001, and **** indicates P < 0.0001.

[0099] Conclusion: Both Chinese herbal composition 1 (6:1000) and Chinese herbal composition 2 (3:1000) can promote postpartum functional recovery in sows, increase feed intake, and promote milk secretion (piglet weight gain). However, Chinese herbal composition 1 was more effective than Chinese herbal composition 2, but at a higher production cost. Therefore, depending on the pig market, Chinese herbal composition 1 and Chinese herbal composition 2 can be added to the sow's diet after parturition (if the production market is good, Chinese herbal composition 1 can be added to the feed; if the market is poor, Chinese herbal composition 2 can be added).

[0100] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0101] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0102] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A Chinese medicinal composition for promoting the increase of appetite in postpartum sows, characterized in that: The invention comprises the following raw materials in parts by weight: 40-50 parts of Acanthopanax senticosus, 25-35 parts of Plantago, 25-35 parts of Red Peony Root, 10-20 parts of Aucklandiae Radix and 10-20 parts of Fructus Aurantii Immaturus.

2. The Chinese medicine composition according to claim 1, characterized in that The invention comprises the following raw materials in parts by weight: 45 parts of Acanthopanax senticosus, 30 parts of Plantago, 30 parts of Red Peony Root, 15 parts of Aucklandiae Radix and 15 parts of Fructus Aurantii Immaturus.

3. A method for preparing the Chinese medicine composition according to claim 1 or 2, characterized in that: The following steps are involved: (1) Weigh the following raw materials according to weight: Acanthopanax senticosus, Aucklandia lappa, Fructus Aurantii Immaturus, Plantago asiatica, and Paeonia lactiflora; (2) Mix the weighed raw materials, crush them, and mix them evenly to obtain the product.

4. The preparation method according to claim 3, characterized in that In step (2), the pulverization is performed by using a traditional Chinese medicine grinder, and the particle size after pulverization is 100-120 mesh; the mixing is performed by using a blender to mix the traditional Chinese medicine composition for 20 minutes to 40 minutes.

5. A feed for promoting the increase of appetite of sows after parturition, characterized in that: The feed comprises the traditional Chinese medicine composition according to claim 1 or 2.

6. The feed according to claim 5, characterized in that The weight ratio of the added amount of the Chinese medicinal composition to the sow diet is (3-6):1000.

7. Use of the Chinese medicine composition according to claim 1 or 2 for treating postpartum poor appetite in sows.

8. The use according to claim 8, characterized in that Add the Chinese medicinal composition according to claim 1 or 2 to the sow's postpartum diet and mix them evenly, wherein the weight ratio of the Chinese medicinal composition to the sow's diet is 3:500; feed the sow's diet mixed with the Chinese medicinal composition to the sow for 28 consecutive days.

9. Use of the Chinese medicine composition according to claim 1 or 2 in at least one of the following: (1) Increase the levels of orexin, gastrin, motilin, and serum digestive enzymes in sow serum; (2) inhibit the secretion of cholecystokinin; (3) Reduce intestinal permeability of lactating sows; (4) Improve liver function in postpartum sows; (5) Improve milk fat levels in lactating sows.

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