Breeding-promoting lactating sow compound feed as well as preparation method and application thereof

Abstract

The invention provides a breeding-promoting lactating sow compound feed as well as a preparation method and application thereof. The breeding-promoting lactating sow compound feed comprises the following components in parts by weight: 70-110 parts of a base material, 1-2 parts of calcium salt, 1-3 parts of a functional additive and 1-2 parts of a premix, the functional additive is prepared from the following components in parts by weight: 20 to 40 parts of plant extract, 0.2 to 2 parts of verbascoside, 0.1 to 1 part of geniposide and 0.5 to 2 parts of L-theanine. The compound feed provided by the invention can improve the feed intake of the lactating sows, maintain proper backfat thickness, reduce the weaning loss of the sows and improve the weaning oestrus rate of the sows; excessive free radicals generated by the body can be removed, the balance of a redox system in the body is maintained, oxidative stress is prevented from being generated, the reproductive system of the lactating sow is prevented from being damaged, and the reproductive performance of the sow is improved; and inflammatory factors in the sows can be removed, inflammatory reaction of the sows is avoided, and the reproductive capacity of the lactating sows is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of animal feed, and in particular relates to a reproduction-promoting lactating sow compound feed, a preparation method and application thereof. Background Art

[0002] The hot weather in summer, especially the high temperature and high humidity climate conditions in the south, is extremely unfavorable to the reproductive performance of sows. High temperature and high humidity conditions can easily cause heat stress in lactating sows. Heat stress will reduce the sow's milk production, daily feed intake and daily weight gain of offspring piglets during lactation, increase sow weight loss during lactation, prolong the interval between sows' estrus after weaning, and significantly increase the endotoxin content in the blood, significantly reduce the activity of alkaline phosphatase and lysozyme, and ultimately lead to reduced production performance of sows. In addition, heat stress will not only lead to aggravated oxidative stress in the sow's body, produce a large amount of reactive oxygen, reduce the body's antioxidant and defense functions, and cause oxidative stress reactions in the body, but also heat stress will lead to the destruction of the intestinal barrier function, increase the permeability of endotoxins in the intestine, and lead to an increase in immune cells, thereby stimulating the production and release of pro-inflammatory factors (such as IL-1β, IL-6 and TNF-α, etc.), and ultimately cause an inflammatory response in the animal body, affecting the reproductive performance of sows.

[0003] At present, in pig farms, heat stress generally causes sows to have reduced feed intake, no estrus or delayed estrus, which seriously affects the breeding efficiency of pig farms. Therefore, it is urgent to develop a method to reduce the impact of heat stress on sows.

[0004] CN109965098A discloses a heat stress resistant sow feed, which is prepared from corn flour, barley flour, rice bran meal powder, soybean meal powder, soybean oil, premix, Corydalis yanhusuo and sword bean extract. The heat stress resistant sow feed of the invention can greatly reduce the probability of constipation in sows; it can significantly increase the feed intake and high-quality dietary fiber intake of sows during lactation, effectively alleviate constipation, reduce the loss of sow backfat, indirectly increase the weaning weight of piglets and the utilization life of sows, and improve economic benefits and actual production benefits.

[0005] CN104397422B discloses a peripartum sow compound feed for relieving heat stress and a preparation method thereof, wherein the feed comprises the following components in percentage by mass: 53-60% corn, 15-25% soybean meal, 1-5% wheat bran, 1-4% rice bran, 8-18% DDGS, 1.2-1.8% soybean oil, 1.0-2.0% microencapsulated coconut oil, 1.0-1.4% calcium hydrogen phosphate, 0.8-1.2% stone powder, 0.8-1.2% arginine, 0.1-0.3% lysine, 0.1-0.2% methionine, 0.03-0.06% threonine, 0.1-0.2% choline chloride, 0.30-0.45% salt, 1-2% premix, and 0.02-0.05% complex enzyme preparation. The invention improves the vitality of newborn piglets under hot climate conditions by regulating the nutrition of peripartum sows, and improves the lactation capacity of lactating sows, thereby improving the health status and growth rate of lactating piglets.

[0006] CN107319163A discloses a lactating sow compound feed and its preparation and use method, wherein the raw material composition is: 500-700kg corn, 150-250kg soybean meal, 20-60kg fermented soybean meal, 30-60kg soybean hull, 10-40kg fish meal, 10-40kg intestinal membrane protein powder, 10-40kg glucose, 10-30kg soybean oil, 10-20kg calcium formate, 5-15kg calcium hydrogen phosphate, 3-7kg amino acid, 3-5kg vitamin additive, 1.5-2.5kg trace element premix, 11-13kg auxiliary material. The feed formula of the invention is reasonable, the nutritional level is high, it can effectively increase the feed intake of lactating sows in summer, enhance the digestion and absorption capacity and heat stress resistance of sows, and the lactation performance of sows is improved by more than 20% compared with other feeds, which has important economic benefits.

[0007] However, the merchant solutions still cannot effectively reduce the impact of heat stress on sows. Therefore, how to provide a method to reduce the impact of heat stress on sows and improve the production performance of sows has become an urgent problem to be solved. Summary of the invention

[0008] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a lactating sow compound feed for promoting reproduction, a preparation method and an application thereof. The compound feed provided by the present invention can increase the feed intake of lactating sows, maintain appropriate backfat thickness, reduce sow weaning losses, and increase the estrus rate of sows at weaning; it can remove excess free radicals produced by the body, maintain the balance of the redox system in the body, avoid oxidative stress, damage the reproductive system of lactating sows, and improve the reproductive performance of sows; it can also remove inflammatory factors in the sow's body, avoid inflammatory reactions in sows, and improve the reproductive capacity of lactating sows.

[0009] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0010] In a first aspect, the present invention provides a reproductive lactating sow compound feed, which comprises, by weight, 70-110 parts of a base material, 1-2 parts of a calcium salt, 1-3 parts of a functional additive, and 1-2 parts of a premix;

[0011] Among them, the number of parts of the base material can be 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, 95 parts, 100 parts, 105 parts or 110 parts, etc., the number of parts of the calcium salt can be 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts or 2 parts, etc., the number of parts of the functional additive can be 1 part, 1.5 parts, 2 parts, 2.5 parts or 3 parts, etc., the number of parts of the premix can be 1 part, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts or 2 parts, etc., but are not limited to the values ​​listed above, and other values ​​not listed within the above numerical range are also applicable.

[0012] The functional additives include, by weight, 20-40 parts of plant extracts, 0.2-2 parts of verbascoside, 0.1-1 parts of gardenia glycoside, and 0.5-2 parts of L-theanine.

[0013] The plant extract comprises a combination of a Pseudostellaria quinquefolia extract, a Sargassum extract and an Artemisia sphaerocephala extract.

[0014] Among them, the number of parts of the plant extract can be 20 parts, 25 parts, 30 parts, 35 parts or 40 parts, etc., the number of parts of verbascoside can be 0.2 parts, 0.4 parts, 0.6 parts, 0.8 parts, 1 parts, 1.2 parts, 1.4 parts, 1.6 parts, 1.8 parts or 2 parts, etc., the number of parts of gardenia glycoside can be 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts or 1 parts, etc., the number of parts of L-theanine can be 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1 parts, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts or 2 parts, etc., but are not limited to the values ​​listed above, and other values ​​not listed within the above numerical range are equally applicable.

[0015] L-theanine can regulate the body's metabolism of sugar, lipids and proteins, maintain the normal metabolism of nutrients in the body, and relieve heat stress.

[0016] Verbascoside has anti-inflammatory and anti-tumor effects. Adding verbbascoside to the lactating sow compound feed of the present invention can prevent the lactating sow from being affected by oxidative stress and inflammatory damage to the body and affecting the development of follicles, increase the weaning estrus rate of the sow, and further affect the reproductive performance of the lactating sow.

[0017] Gardenia glycoside has anti-inflammatory and heat-clearing and detoxifying effects. The addition of gardenia glycoside to the lactating sow compound feed of the present invention can not only reduce the sow's postpartum inflammation, but also promote the relief of the sow's heat stress and improve the sow's reproductive performance.

[0018] The above-mentioned functional additives are compounded and synergistically prepared by using a specific plant extract combination, verbascoside, gardenia glycoside and L-theanine, so that the lactating sow compound feed can increase the feed intake of lactating sows, maintain appropriate backfat thickness, reduce sow weaning losses, and increase the weaning estrus rate of sows; it can remove excessive free radicals produced by the body, maintain the balance of the body's redox system, avoid oxidative stress, damage the reproductive system of lactating sows, and improve the reproductive performance of sows; it can also remove inflammatory factors in the sow's body, avoid inflammatory reactions in sows, and improve the reproductive capacity of lactating sows.

[0019] Black Artemisia sphaerocephala extract is not only rich in nutrients such as protein, fat, vitamins and trace elements, but also rich in bioactive ingredients such as polysaccharides, flavonoids, volatile oils and triterpenes, which can promote sows' feeding, improve sows' intestinal health, enhance immunity and anti-oxidation.

[0020] Sargassum extract is rich in polysaccharides, proteins and trace elements, and has multiple functions such as antioxidant and anti-inflammatory. It can enhance the antioxidant capacity and immune function of sows, relieve stress and improve reproductive performance.

[0021] The extract of Lantern Festival has multiple effects such as anti-inflammatory, antioxidant and antibacterial. It works synergistically with Sargassum extract and Artemisia sphaerocephala extract to maintain the balance of the redox system of lactating sows, relieve oxidative stress in lactating sows, reduce the content of inflammatory factors in sows, increase sows' feed intake, and improve sows' reproductive performance.

[0022] Preferably, the mass ratio of the P. quinquefolia extract, Sargassum extract and Artemisia sphaerocephala extract is (1-4):(3-4):(2-5), wherein the number of portions of the P. quinquefolia extract can be 1, 1.5, 2, 2.5, 3, 3.5 or 4, etc., the number of portions of Sargassum extract can be 3, 3.2, 3.4, 3.6, 3.8 or 4, etc., and the number of portions of Artemisia sphaerocephala extract can be 2, 2.5, 3, 3.5, 4, 4.5 or 5, etc., but are not limited to the values ​​listed above, and other values ​​not listed within the above numerical range are equally applicable.

[0023] Preferably, the substrate comprises any one of corn, soybean meal, fish meal, puffed soybeans or wheat bran, or a combination of at least two thereof.

[0024] Preferably, the premix comprises trace elements and / or vitamins.

[0025] In a second aspect, the present invention also provides a method for preparing the above-mentioned reproductive promotion lactating sow compound feed, the preparation method comprising the following steps:

[0026] The base material is crushed and then mixed with calcium salt, functional additives and premixes to obtain the reproduction-promoting lactating sow compound feed.

[0027] In a third aspect, the present invention also provides the use of the above-mentioned reproductive promotion lactating sow compound feed in the preparation of animal feed.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The invention provides a lactating sow compound feed for promoting reproduction. By adopting the compound and synergistic effect of plant extracts, verbascoside, gardenia glycoside and L-theanine, the lactating sow compound feed can increase the feed intake of lactating sows, maintain appropriate back fat thickness, reduce sow weaning losses, and improve the weaning estrus rate of sows; it can remove excessive free radicals generated by the body, maintain the balance of the redox system in the body, avoid oxidative stress, damage the reproductive system of lactating sows, and improve the reproductive performance of sows; it can also remove inflammatory factors in the sow's body, avoid inflammatory reactions in the sow, and improve the reproductive capacity of the lactating sow. DETAILED DESCRIPTION

[0030] In order to further explain the technical means and effects adopted by the present invention, the technical solution of the present invention is further described below in conjunction with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0031] In the following examples, Artemisia sphaerocephala extract was purchased from Ningxia Vanilla Biotechnology Co., Ltd.;

[0032] Sargassum extract was purchased from Shaanxi Xinpai Biotechnology Co., Ltd.;

[0033] Lantern Festival extract was purchased from Xi'an Qiancao Biotechnology Co., Ltd.

[0034] Verbascoside was purchased from Shaanxi Lantai Bioengineering Co., Ltd.;

[0035] Gardenia jasminoides was purchased from Shaanxi Wensheng Biotechnology Co., Ltd.;

[0036] L-Theanine was purchased from Zhengzhou Mingxin Food Ingredients Co., Ltd.

[0037] Preparation Example 1

[0038] This preparation example provides a functional additive for promoting reproduction of lactating sows, and the raw materials (by weight) are as follows:

[0039] 30 parts of plant extract (mass ratio of Lantern Festival extract, Sargassum extract and Artemisia sphaerocephala extract is 2:3.5:4), 1 part of Verbascum glycoside, 0.5 part of Gardenia jasminoides and 1.2 parts of L-theanine.

[0040] The raw materials are mixed to prepare the product.

[0041] Preparation Example 2

[0042] This preparation example provides a functional additive for promoting reproduction of lactating sows, and the raw materials (by weight) are as follows:

[0043] 20 parts of plant extract (mass ratio of Lantern Festival extract, Sargassum extract and Artemisia sphaerocephala extract is 1:3:2), 2 parts of Verbascum glycoside, 0.1 parts of Gardenia jasminoides and 2 parts of L-theanine.

[0044] The raw materials are mixed to prepare the product.

[0045] Preparation Example 3

[0046] This preparation example provides a functional additive for promoting reproduction of lactating sows, and the raw materials (by weight) are as follows:

[0047] 40 parts of plant extract (mass ratio of Lantern Festival extract, Sargassum extract and Artemisia sphaerocephala extract is 4:4:5), 0.2 parts of verbascoside, 1 part of gardenia glycoside and 0.5 parts of L-theanine.

[0048] The raw materials are mixed to prepare the product.

[0049] Comparative Preparation Example 1

[0050] This comparative preparation example provides a functional additive for promoting reproduction in lactating sow feed. The raw materials for the preparation do not contain plant extracts and the reduced portion is proportionally distributed to verbascoside, gardenia glycoside, and L-theanine, and the rest is consistent with Preparation Example 1.

[0051] Comparative Preparation Example 2

[0052] This comparative preparation example provides a functional additive for promoting reproduction of lactating sow compound feed. The raw materials for the preparation do not contain verbascoside and the reduced portion is proportionally distributed to plant extracts, gardenia glycosides, and L-theanine, and the rest are consistent with Preparation Example 1.

[0053] Comparative Preparation Example 3

[0054] This comparative preparation example provides a functional additive for promoting reproduction of lactating sow compound feed. The raw materials for the preparation do not contain gardenia glycoside, and the reduced part is proportionally distributed to verbascoside, plant extracts, and L-theanine, and the rest are consistent with Preparation Example 1.

[0055] Comparative Preparation Example 4

[0056] This comparative preparation example provides a functional additive for promoting reproduction of lactating sow compound feed. The raw materials for the preparation do not contain L-theanine and the reduced portion is proportionally distributed to verbascoside, gardenia glycoside, and plant extracts, and the rest are consistent with Preparation Example 1.

[0057] Comparative Preparation Example 5

[0058] This comparative preparation example provides a functional additive for promoting reproduction in lactating sow feed. The raw materials for the preparation do not contain Pleurotus eryngii extract and the reduced portion is proportionally allocated to Sargassum extract and Artemisia sphaerocephala extract, and the rest are consistent with Preparation Example 1.

[0059] Comparative Preparation Example 6

[0060] This comparative preparation example provides a functional additive for promoting reproduction in lactating sow feed. The raw materials for the preparation do not contain Sargassum extract and the reduced portion is proportionally distributed to Pleurotus eryngii extract and Artemisia sphaerocephala extract, and the rest are consistent with Preparation Example 1.

[0061] Comparative Preparation Example 7

[0062] This comparative preparation example provides a functional additive for promoting reproduction in lactating sow feed. The raw materials for the preparation do not contain Artemisia sphaerocephala extract and the reduced portion is proportionally distributed to Sargassum extract and Lantern Festival Chinese lantern extract. The rest is consistent with Preparation Example 1.

[0063] Example 1

[0064] This embodiment provides a reproductive promotion lactating sow compound feed, and the raw materials (by weight) are as follows:

[0065] 60 parts of corn, 25 parts of soybean meal, 1.5 parts of calcium bicarbonate, 2 parts of fish meal, 2 parts of the functional additive provided in Preparation Example 1, and 1.5 parts of premix.

[0066] The premix contains the following per kg of feed: FeSO4·7H2O, 500 mg; CuSO4·5H2O, 30 mg; MnSO4·H2O, 50 mg; ZnSO4·7H2O, 500 mg; KI, 0.2 mg; NaSeO3, 0.5 mg; VB1, 1.5 mg; VB2, 5 mg; VK, 5 mg; VD3, 1500 IU; VB12, 10 μg; VE, 10 IU; VA, 16000 IU; choline chloride, 100 mg.

[0067] The preparation method is as follows:

[0068] The corn and soybean meal are crushed, and then evenly mixed with fish meal, functional additives, calcium bicarbonate and premix to obtain the product.

[0069] Example 2

[0070] This embodiment provides a reproductive promotion lactating sow compound feed, and the raw materials (by weight) are as follows:

[0071] 40 parts of corn, 18 parts of soybean meal, 2 parts of calcium bicarbonate, 2 parts of fish meal, 1 part of the functional additive provided in Preparation Example 2, and 2 parts of premix.

[0072] The premix contains the following per kg of feed: FeSO4·7H2O, 500 mg; CuSO4·5H2O, 30 mg; MnSO4·H2O, 50 mg; ZnSO4·7H2O, 500 mg; KI, 0.2 mg; NaSeO3, 0.5 mg; VB1, 1.5 mg; VB2, 5 mg; VK, 5 mg; VD3, 1500 IU; VB12, 10 μg; VE, 10 IU; VA, 16000 IU; choline chloride, 100 mg.

[0073] The preparation method is similar to that of Example 1.

[0074] Example 3

[0075] This embodiment provides a reproductive promotion lactating sow compound feed, and the raw materials (by weight) are as follows:

[0076] 80 parts of corn, 25 parts of puffed soybeans, 1 part of calcium bicarbonate, 5 parts of fish meal, 3 parts of the functional additives provided in Preparation Example 3, and 1 part of premix.

[0077] The premix contains the following per kg of feed: FeSO4·7H2O, 500 mg; CuSO4·5H2O, 30 mg; MnSO4·H2O, 50 mg; ZnSO4·7H2O, 500 mg; KI, 0.2 mg; NaSeO3, 0.5 mg; VB1, 1.5 mg; VB2, 5 mg; VK, 5 mg; VD3, 1500 IU; VB12, 10 μg; VE, 10 IU; VA, 16000 IU; choline chloride, 100 mg.

[0078] The preparation method is similar to that of Example 1.

[0079] Comparative Examples 1-7

[0080] Comparative Examples 1-7 respectively provide a reproductive-promoting lactating sow compound feed, and the preparation raw materials are consistent with Application Example 1 except that the functional additives provided in Preparation Example 1 are replaced by equal amounts of functional additives provided in Comparative Preparation Examples 1-7.

[0081] Effect test:

[0082] The experiment selected 66 lactating sows with 105 days of gestation and similar parity, and randomly divided them into 11 treatment groups. The control group used conventional lactating sow feed, and the experimental group was fed with the reproductive lactating sow compound feed provided by Examples 1-3 and Comparative Examples 1-7, respectively. There were 6 sows in each treatment group, and the test period started from the day of sow farrowing (postpartum adjustment of each sow with 10-11 piglets, and the individual weight of the piglets was 1.59-1.64kg) to the 21st day of lactation after sow farrowing, for a total of 21 days. A traditional pig house was used, the temperature was 30±3°C, and the temperature of the pig house was recorded in detail with a temperature and humidity recorder.

[0083] Sow production performance

[0084] When the piglets were weaned on the 21st day, the survival rate of the piglets, the average weight of the weaned piglets, etc. were recorded in detail, and the average daily weight gain of the piglets during lactation was calculated.

[0085] The statistics of sows' feed intake were the feed consumption during the 21-day lactation period, and the average daily feed intake (ADFI) of sows was calculated, and the differences in feed consumption among groups were compared. The back fat thickness was measured at the P2 point (6 cm from the midline of the 10th rib on the left side) on the 114th day of gestation and the 21st day of farrowing, and the back fat loss of sows during lactation was calculated.

[0086] The results are as follows:

[0087]

[0088]

[0089] On the morning of the 21st day of the experiment, before feeding, 10 mL of anterior vena cava blood was collected from each lactating sow, left to stand for 10 min, centrifuged at 3500 r / min for 10 min, and the serum was separated and stored at -20 degrees for later use.

[0090] Serum antioxidant index

[0091] The total antioxidant capacity (T-AOC), total superoxide dismutase (T-SOD), glutathione peroxidase (GSH-Px) and malondialdehyde (MDA) were detected using a kit (Nanjing Jiancheng Bioengineering Institute). The results are as follows:

[0092] Group T-AOC (U / mL) T-SOD (U / mL) GSH-Px (U / mL) MDA (U / mL) Example 1 3.86 84.65 932.14 1.13 Example 2 3.75 88.73 928.12 1.16 Example 3 3.78 89.16 927.63 1.18 Comparative Example 1 3.06 100.57 911.25 1.45 Comparative Example 2 3.30 94.31 916.32 1.32 Comparative Example 3 3.37 96.68 917.78 1.29 Comparative Example 4 3.41 95.43 920.57 1.34 Comparative Example 5 3.15 94.52 916.32 1.40 Comparative Example 6 3.21 93.63 917.66 1.33 Comparative Example 7 3.13 95.63 919.83 1.36 Control group 2.56 110.82 903.56 1.67

[0093] Serum inflammatory factors

[0094] The determination of inflammatory factor content (TNF-α, IL-1β, IL-8) was performed according to the instructions of the kit of Nanjing Jiancheng Bioengineering Research Institute. The results are as follows:

[0095] Group TNF-α(ng / mL) IL-1β (pg / mL) IL-8 (pg / mL) Example 1 0.53 80.86 720.56 Example 2 0.56 81.32 731.43 Example 3 0.57 82,01 726.38 Comparative Example 1 0.66 98.63 907.83 Comparative Example 2 0.61 87.85 841.46 Comparative Example 3 0.63 89.54 834.62 Comparative Example 4 0.60 86.54 821.56 Comparative Example 5 0.62 90.32 868.53 Comparative Example 6 0.63 92.28 867.51 Comparative Example 7 0.61 93.67 849.79 Control group 0.74 111.79 982.35

[0096] From the above test data, it can be found that the product provided by the present invention can increase the feed intake of lactating sows, maintain appropriate back fat thickness, reduce sow weaning losses, and improve the weaning estrus rate of sows; it can remove excess free radicals produced by the body, maintain the balance of the redox system in the body, avoid oxidative stress, damage the reproductive system of lactating sows, and improve the reproductive performance of sows; it can also remove inflammatory factors in the sow's body, avoid inflammatory reactions in sows, and improve the fertility of lactating sows; by comparing Example 1, Comparative Examples 1-7 and the control group, it can be found that the present invention can further improve the effect of the product by selecting a specific combination of plant extracts and using plant extracts, verbascoside, gardenia glycoside and L-theanine for a compound and synergistic effect.

[0097] The applicant declares that the present invention uses the above-mentioned embodiments to illustrate the reproductive promoting lactating sow compound feed and its preparation method and application, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0098] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0099] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A reproductive promoting lactating sow compound feed, characterized in that: The reproductive promoting lactating sow compound feed comprises, by weight, 70-110 parts of a base material, 1-2 parts of a calcium salt, 1-3 parts of a functional additive and 1-2 parts of a premix; The functional additives include 20-40 parts of plant extract, 0.2-2 parts of verbascoside, 0.1-1 parts of gardenia glycoside, and 0.5-2 parts of L-theanine in parts by weight; The plant extract comprises a combination of a Pseudostellaria quinquefolia extract, a Sargassum extract and an Artemisia sphaerocephala extract.

2. The reproductive promoting lactating sow compound feed according to claim 1, characterized in that: The mass ratio of the Lantern Festival extract, the Sargassum extract and the Artemisia sphaerocephala extract is (1-4):(3-4):(2-5).

3. The reproductive promoting lactating sow compound feed according to claim 1 or 2, characterized in that: The substrate comprises any one of corn, soybean meal, fish meal, puffed soybean or wheat bran, or a combination of at least two of them.

4. The reproductive promoting lactating sow compound feed according to any one of claims 1 to 3, characterized in that: The premix includes trace elements.

5. The reproductive promoting lactating sow compound feed according to any one of claims 1 to 4, characterized in that: The premix includes vitamins.

6. A method for preparing a reproductive promoting lactating sow compound feed according to any one of claims 1 to 5, characterized in that: The preparation method comprises the following steps: The base material is crushed and then mixed with calcium salt, functional additives and premixes to obtain the reproduction-promoting lactating sow compound feed.

7. Use of the reproductive promoting lactating sow compound feed according to any one of claims 1 to 5 in the preparation of animal feed.

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