High-lactose-content creep feed capable of reducing caking and preparation method of high-lactose-content creep feed

Abstract

The invention relates to the technical field of animal cub feeds, in particular to a high-lactose-content creep feed capable of reducing caking and a preparation method thereof. The creep feed comprises a prefabricated lactose source, the prefabricated lactose source comprises prefabricated whey powder, a wood fiber source and a forming agent, and the prefabricated whey powder comprises whey powder, magnesium stearate and calcium chloride; the weight ratio of the whey powder to the calcium chloride is controlled within the range of 15: 1 to 30: 1; the weight ratio of the wood fiber source in the creep feed is not more than 3%; the feed raw materials comprise a carbon water source, a protein source, a fat source, a mineral supplement and an auxiliary additive. According to the creep feed provided by the invention, the occurrence of caking in the high-lactose creep feed can be reduced, and meanwhile, the daily weight gain level and the daily weight gain stability of piglets are improved.

Description

Technical Field

[0001] The invention relates to the technical field of animal cub feed, in particular to a high-lactose content creep feed with reduced agglomeration and a preparation method thereof. Background Art

[0002] With the advancement of modern pig farming technology, the reproductive performance of sows has been significantly improved, and the number of piglets per litter has also increased. In this case, the sow's lactation ability may not be able to meet the needs of all piglets, resulting in a general decrease in the weaning weight of piglets. In order to solve this problem, the lactose content in the creep feed (starter feed) is increased to simulate the nutrients in breast milk, provide the energy and growth factors required by piglets, and thus promote their growth and development.

[0003] However, lactose has the property of being hygroscopic, which means that it can absorb moisture from the air. In creep feed with a high lactose content, this property may cause the feed particles to absorb moisture and become soft, which in turn causes agglomeration. Agglomeration not only affects the fluidity of the creep feed and reduces the efficiency of the automatic feeding system, but may also affect the uniformity and stability of the feed, which in turn affects the piglets' feeding and digestion and absorption. In addition, agglomeration will increase feed losses during transportation and storage, reducing the overall quality of the feed.

[0004] To solve this problem, researchers in the pig farming industry and feed technology have developed a series of technologies to reduce the occurrence of caking in high-lactose creep feed. These technologies include improving feed formulation, using anti-caking additives, and improving storage conditions. However, the use of anti-caking additives will have a negative impact on pig health, and changing the feed formulation or processing method will affect the nutritional value of the feed, thereby affecting the growth and development of pigs. Summary of the invention

[0005] In order to solve the problem that the lactose in the high lactose content creep feed in the prior art absorbs moisture and causes the feed particles to absorb moisture and become soft, thereby causing agglomeration, the present invention provides a high lactose content creep feed with reduced agglomeration and a preparation method thereof.

[0006] In order to solve the above technical problems, one of the technical solutions provided by the present invention is as follows:

[0007] A high lactose content creep feed with reduced caking, the creep feed comprising:

[0008] A prefabricated lactose source, the prefabricated lactose source comprising prefabricated whey powder, a wood fiber source and a molding agent, the prefabricated whey powder comprising whey powder, magnesium stearate and calcium chloride; the weight ratio of the whey powder to the calcium chloride is controlled within the range of 15:1 to 30:1; the weight proportion of the wood fiber source in the creep feed does not exceed 3%;

[0009] Feed raw materials, including carbohydrate sources, protein sources, fat sources, mineral supplements and auxiliary additives.

[0010] In one test group, the feed raw materials include, by weight, 45-55 parts of a carbohydrate source, 20-25 parts of a protein source, 1-3 parts of a fat source, 1.2-1.8 parts of a mineral supplement, and 0.5-1.5 parts of an auxiliary additive.

[0011] In one test group, the carbohydrate source is one or more of puffed rice, puffed corn, and rice grains for suckling pig feed;

[0012] Optionally, the protein source is one or more of fermented soybean meal, puffed soybean, 46% soybean meal, and first-grade fish meal;

[0013] Optionally, the fat source is soybean oil.

[0014] In one test group, the mineral supplement is one or more of stone powder, calcium hydrogen phosphate, and zinc oxide;

[0015] Optionally, the auxiliary additive is citric acid and / or a premix.

[0016] In one test group, the prefabricated lactose source includes 13-18 parts of whey powder, 0.05-0.15 parts of magnesium stearate, 0.5-1 parts of calcium chloride, 1-3 parts of wood fiber source, and 3-7 parts of molding agent, by weight.

[0017] Preferably, in parts by weight, the prefabricated lactose source comprises 13-18 parts of whey powder, 0.05-0.15 parts of magnesium stearate, 0.5-0.8 parts of calcium chloride, 2-3 parts of wood fiber source, and 3-7 parts of molding agent.

[0018] In one experimental group, the wood fiber source was alfalfa meal;

[0019] Preferably, the alfalfa powder has a particle size of 1 mm;

[0020] Optionally, the shaping agent is flour.

[0021] In one test group, the weight ratio of the whey powder to the calcium chloride was 30; the weight proportion of the wood fiber source in the creep feed was 2%, and the weight ratio of the wood fiber source to the magnesium stearate was 20.

[0022] In one test group, the weight ratio of the whey powder to the calcium chloride was 18.75; the weight proportion of the wood fiber source in the creep feed was 3%, and the weight ratio of the wood fiber source to the magnesium stearate was 30.

[0023] The second technical solution provided by the present invention is as follows:

[0024] The method for preparing the high lactose content creep feed with reduced caking as described above comprises:

[0025] The prefabricated whey powder is mixed with a wood fiber source and a molding agent to prepare a prefabricated lactose source, wherein the prefabricated whey powder comprises whey powder, magnesium stearate and calcium chloride; wherein the weight ratio of the whey powder to the calcium chloride is controlled within a range of 15:1 to 30:1; and the weight proportion of the wood fiber source in the creep feed does not exceed 3%;

[0026] The prefabricated lactose source is mixed with feed raw materials to prepare a high lactose content creep feed with reduced caking. The feed raw materials include a carbohydrate source, a protein source, a fat source, a mineral supplement and auxiliary additives.

[0027] In one test group, the protein source includes expanded soybeans. Before the feed material is mixed with the preformed lactose source, the expanded soybeans are crushed to a particle size of 0.8 mm and mixed with the preformed lactose source before other components.

[0028] Based on the above, compared with the prior art, the high lactose content creep feed with reduced agglomeration provided by the present invention includes at least one of the following beneficial technical effects:

[0029] The present invention mixes calcium chloride and magnesium stearate with whey powder before other components, fully utilizes the water absorption competitiveness of calcium chloride, reduces the contact of whey powder with water, and utilizes the anti-adhesiveness and flow-aiding properties of magnesium stearate to reduce adhesion with feed and enhance fluidity. Adding wood fiber can increase the volume, increase the distance between raw materials, and improve fluidity.

[0030] Other features and beneficial effects of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other beneficial effects of the present invention can be achieved and obtained by the structures specifically pointed out in the description and claims. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the test group of the present invention clearer, the technical scheme in the test group of the present invention will be clearly and completely described below. Obviously, the described test group is a part of the test group of the present invention, not all of the test groups; the technical features designed in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other; based on the test group in the present invention, all other test groups obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that all terms used in the present invention (including technical terms and scientific terms) have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs, and cannot be understood as limiting the present invention; it should be further understood that the terms used in the present invention should be understood to have the same meanings as these terms in the context of this specification and in the relevant fields, and should not be understood in an idealized or overly formal sense, unless explicitly defined in the present invention.

[0033] The test group of the present invention provides a high lactose content creep feed with reduced caking, the creep feed comprising:

[0034] A preformed lactose source, the preformed lactose source comprising preformed whey powder, a wood fiber source and a molding agent, the preformed whey powder comprising whey powder, magnesium stearate and calcium chloride;

[0035] The present invention makes full use of the water absorption competitiveness of calcium chloride to reduce the contact of whey powder with water, and utilizes the anti-adhesiveness and flow-aiding properties of magnesium stearate to mix calcium chloride and magnesium stearate with whey powder before other components to obtain a prefabricated lactose source, thereby reducing the adhesion between the lactose source and the feed and enhancing the fluidity. Furthermore, adding wood fiber can increase the volume, thereby increasing the distance between the raw materials and further improving the fluidity.

[0036] Preferably, the whey powder is low-protein whey powder. The whey powder used in the present invention adopts low-protein whey powder, which refers to whey powder containing 3% protein. Low-protein whey powder has natural frankincense and can provide a large amount of lactose. Lactose can produce a large amount of lactic acid when fermented in the digestive tract of piglets, reduce the pH value, help the gastrointestinal digestion of piglets and inhibit the growth of pathogenic bacteria; not only that, the high-quality whey protein contained in the whey powder has the advantages of high digestibility, good amino acid form and no anti-nutritional factors in the piglets, and also contains albumin and globulin (serum protein), which also has a positive effect on the intestinal tract, especially immunoglobulin, which has a protective effect on the intestinal tract and can resist Escherichia coli. Lactoperoxidase and lactoferrin are also contained in the whey powder, which have the functions of sterilization and bacteriostasis.

[0037] The weight ratio of the whey powder to the calcium chloride is controlled within a range of 15:1 to 30:1; the weight proportion of the wood fiber source in the creep feed does not exceed 3%;

[0038] Feed raw materials, including carbohydrate sources, protein sources, fat sources, mineral supplements and auxiliary additives.

[0039] In one test group, the feed raw materials include, by weight, 45-55 parts of a carbohydrate source, 20-25 parts of a protein source, 1-3 parts of a fat source, 1.2-1.8 parts of a mineral supplement, and 0.5-1.5 parts of an auxiliary additive.

[0040] In one test group, the carbohydrate source is one or more of puffed rice, puffed corn, and rice grains for suckling pig feed;

[0041] Puffed broken rice is mainly composed of rice bran and rice grains, which are rich in protein, carbohydrates, vitamins and minerals. Puffed broken rice may be easier for piglets to digest, help strengthen the intestinal wall function and improve the taste of piglet feed;

[0042] Puffed corn is processed by high temperature and high pressure, which changes the structure of corn starch and makes it easier for piglets to digest and absorb. Therefore, adding puffed corn to piglet feed can improve pig feed utilization, reduce undigested feed excretion, and save feed costs. At the same time, although puffed corn is subjected to high temperature and high pressure during processing, its starch is denatured and cracked, and the starch molecules are changed into some raw material compounds and sugars, becoming easily digestible carbohydrates in the feed. However, the loss of vitamins and minerals in the puffing process is also significantly reduced, which is beneficial to the absorption and utilization of vitamins and trace elements by piglets, and further enhances the nutritional value of piglet feed.

[0043] Optionally, the protein source is one or more of fermented soybean meal, puffed soybean, 46% soybean meal, and first-grade fish meal;

[0044] Fermented soybean meal, through fermentation, the anti-nutritional factors of soybean meal are degraded, and the utilization rate of protein and amino acids is improved. Especially when used in piglet feed, fermented soybean meal can reduce feed consumption, improve piglet immunity, reduce the occurrence of diseases, and reduce the use of antibiotics;

[0045] Puffed soybeans are a high-calorie, high-protein feed ingredient. After puffing, they are easier for piglets to digest and absorb. In addition, they contain a large amount of nutrients such as protein and amino acids, which can promote the growth and development of piglets.

[0046] 46% Soybean meal is rich in protein and other nutrients, which can provide comprehensive nutrition for piglets and promote their growth and development;

[0047] The high-quality protein and essential amino acids contained in first-grade fish meal can effectively increase the growth rate of piglets, increase the weight of piglets, and improve reproductive efficiency. At the same time, the cod liver oil contained in fish meal is rich in ω-3 polyunsaturated fatty acids and has strong antioxidant capacity, which can enhance the immunity of piglets, improve their resistance to various viruses and bacteria, and reduce the infection rate of diseases.

[0048] Optionally, the fat source is soybean oil;

[0049] Soybean oil can improve the nutritional value of piglet feed, enhance piglet immunity and improve piglet growth performance.

[0050] Optionally, the mineral supplement is one or more of stone powder, calcium hydrogen phosphate, and zinc oxide;

[0051] Stone powder is mainly composed of calcium carbonate, which can be used as a calcium source in piglet feed to promote the growth and development of piglets and the health of their teeth and bones. In addition, the aluminum, calcium and other elements it contains have a good health care effect on bone development and can improve the utilization rate of feed. It is also rich in trace elements and minerals, which can effectively promote the metabolic process in piglets and increase their growth rate.

[0052] Calcium hydrogen phosphate is an efficient phosphorus source that provides piglets with the necessary inorganic phosphorus and promotes their normal metabolism and growth and development. In addition, it can also increase the appetite of piglets, promote food digestion and absorption, and improve feed utilization.

[0053] Zinc oxide has the functions of increasing the growth of piglets, improving antioxidant levels, regulating immune function, resisting stress and inhibiting the growth of harmful bacteria. At the same time, it promotes nutrient absorption, antibacterial and anti-oxidation in the intestines, enhances the body's immunity and reduces diarrhea.

[0054] Optionally, the auxiliary additive is citric acid and / or a premix.

[0055] Citric acid has the effect of acidifying the intestines, which can inhibit the reproduction of harmful bacteria and reduce the production of ammonia, thereby improving the utilization rate of nitrogen in the feed. At the same time, it also has the effect of promoting protein synthesis and improving the absorption rate of amino acids. It can also be used as an energy source, which helps animals grow, develop and accumulate weight faster.

[0056] The premix provides per kg of complete feed: Cu 50 mg; Fe 100 mg; Zn 100 mg; Mn 30 mg; VD3386 IU; VA 20000 IU; VE 300 mg; VK3 4 mg; VB2 6 mg; calcium pantothenate 20 mg; niacin 60 mg; choline 75 mg; VB 12 60 μg;

[0057] In one test group, the prefabricated lactose source includes 13-18 parts of whey powder, 0.05-0.15 parts of magnesium stearate, 0.5-1 parts of calcium chloride, 1-3 parts of wood fiber source, and 3-7 parts of molding agent, by weight.

[0058] In one experimental group, the wood fiber source was alfalfa meal;

[0059] Preferably, the particle size of the alfalfa powder is 1 mm.

[0060] Alfalfa meal, as a source of wood fiber, contains alfalfa fiber, which can not only increase the volume to increase the distance between raw materials and further improve the fluidity of feed, but also can be used as an energy source for probiotic strains in the intestine, which is beneficial to maintain the balance of intestinal microbial flora and prevent digestive disorders; it can stimulate the secretion of saliva, gastric juice, bile and pancreatic juice, reduce the nutrient concentration of the diet and increase satiety, which helps to maintain a good balance between nutrient intake and the digestive ability of piglets; it also helps to discharge toxic substances in the intestine and reduce harm to piglets. Alfalfa fiber also contains soluble components such as pectin, which can inhibit intestinal contraction and play an anti-diarrhea role.

[0061] Optionally, the shaping agent is flour.

[0062] In one test group, the weight ratio of the whey powder to the calcium chloride was 30; the weight proportion of the wood fiber source in the creep feed was 2%, and the weight ratio of the wood fiber source to the magnesium stearate was 20.

[0063] When the weight ratio of whey powder to calcium chloride is 30 and the proportion of wood fiber source in the creep feed is 2%, the agglomeration of feed can be effectively controlled (the agglomeration ratio is 0%), and at the same time, the daily weight gain level of piglets can be greatly improved. It can be seen that due to the reduction of whey powder agglomeration, the food intake of piglets can be increased and the absorption of various energy sources can be greatly improved. It is precisely because of the simultaneous addition of calcium chloride, magnesium stearate and wood fiber in the present invention that the agglomeration phenomenon of whey powder is reduced, and the fluidity of feed is fully enhanced, and good fluidity can ensure that the feed is in the material The calcium chloride, magnesium stearate and wood fiber are mixed with whey powder before other components. On the one hand, small particles of raw materials are mixed with lactose first, further reducing the surface area of ​​lactose in contact with the outside world; on the other hand, different raw materials in the whole feed are distributed more evenly. With good feed fluidity, the uniformity of feed particles can be further promoted, which is easier for piglets to chew and digest, and the absorption rate of nutrients is greatly improved.

[0064] In one test group, the weight ratio of the whey powder to the calcium chloride was 18.75; the weight proportion of the wood fiber source in the creep feed was 3%, and the weight ratio of the wood fiber source to the magnesium stearate was 30.

[0065] When the weight ratio of whey powder to calcium chloride is 18.75 and the proportion of wood fiber source in the creep feed is 3%, the agglomeration of feed can be effectively controlled (the agglomeration ratio is 0%), and the daily weight gain stability of piglets can be effectively controlled (the fluctuation of daily weight gain is only ±10), so that the daily weight gain of this batch of piglets is more controllable. Although the daily weight gain value is relatively low, local explosive growth is avoided, and the stable daily weight gain gives farmers the possibility to increase the scale of breeding. This is precisely because the proportion of wood fiber and the ratio of wood fiber source to magnesium stearate are controlled, so that the fluidity of the creep feed reaches a better adaptation value, thereby ensuring that piglets can obtain feed freely and evenly, which helps to improve their growth rate and overall growth stability.

[0066] The second technical solution provided by the present invention is as follows:

[0067] The method for preparing the high lactose content creep feed with reduced caking as described above comprises:

[0068] The prefabricated whey powder is mixed with a wood fiber source and a molding agent to prepare a prefabricated lactose source, wherein the prefabricated whey powder comprises whey powder, magnesium stearate and calcium chloride; wherein the weight ratio of the whey powder to the calcium chloride is controlled within a range of 15:1 to 30:1; and the weight proportion of the wood fiber source in the creep feed does not exceed 3%;

[0069] The prefabricated lactose source is mixed with feed raw materials to prepare a high lactose content creep feed with reduced caking. The feed raw materials include a carbohydrate source, a protein source, a fat source, a mineral supplement and auxiliary additives.

[0070] Among them, firstly, alfalfa is wood fiber with excellent fluidity, and the fluidity of the feed is improved by increasing the fiber in the feed; calcium chloride has moisture absorption ability and can compete with lactose for contact with water; magnesium stearate can effectively increase the lubricity, anti-stickiness, flow-aiding and ductility of the feed to improve the flowability of the feed. Preferably, the present invention further reduces the surface area of ​​lactose in contact with the outside world by mixing the small particle raw material with lactose first.

[0071] Secondly, in the preparation method of the present invention, the amount of magnesium stearate added is the least, followed by calcium chloride, so it is preferred that the two components with less addition are first mixed with whey powder and then mixed with other raw materials. The amount of wood fiber added is relatively large, and it can be mixed with calcium chloride and magnesium stearate first, or after they are mixed, mixed together, and finally mixed with the feed raw materials. After such mixing, the fluidity of each component in the feed is good.

[0072] In one test group, the protein source includes puffed soybeans. Before the feed raw materials are mixed with the prefabricated lactose source, the puffed soybeans are crushed to a particle size of 0.8 mm and mixed with the prefabricated lactose source before other components. By further crushing the puffed soybeans, the particle size of the puffed soybeans is made smaller, and its surface area is relatively increased, which helps the piglets to better contact and digest the feed. In addition, puffed soybeans contain fat, which can increase fluidity after mixing. The nutrients in the soybeans can therefore be absorbed faster and more fully by the pig body, thereby improving the utilization rate of the feed; and mixing it before other components just meets the purpose of the present invention to make the distribution of the various components of the feed more uniform.

[0073] In order to make the technical solution of the present invention clearer, it is described in detail through the following test group.

[0074] Test Groups 1-5

[0075] Prepare a high lactose content creep feed to reduce caking. The amount of each raw material is shown in Table 1. The steps are as follows:

[0076] After whey powder, magnesium stearate and calcium chloride are mixed in proportion, alfalfa powder and flour are added to the mixture to obtain a first mixed raw material, puffed soybeans are ultrafinely crushed (0.8 mm) and mixed evenly with the first mixed raw material, and other raw materials are added in proportion and mixed evenly to obtain creep feed;

[0077] Store sealed after production.

[0078] Table 1 Raw material dosage (parts by weight)

[0079]

[0080]

[0081] Test Case

[0082] The produced creep feed is 20kg / bag, piled up in 20 layers, and the agglomeration ratio of the bottom layer is measured after 30 days.

[0083] Storage: Store at room temperature.

[0084] 45 24-day-old suckling piglets of the same breed and with small weight differences were selected and divided into 5 treatments (experimental group 1, experimental group 2, experimental group 3, experimental group 4, and experimental group 5) in completely randomized blocks. Feeding started from weaning on the 24th day after birth to 10 days after weaning. The weight gain from weaning to 10 days after weaning was recorded.

[0085] The test results are shown in Table 2.

[0086] Table 2 Test results of experimental group and control group

[0087]

[0088] a, b, and c indicate significant differences between different letters.

[0089] As can be seen from the table, the daily weight gain of test group 3 is the largest, significantly higher than that of other test groups. The main reason is that there is no agglomeration in test groups 3, 4, and 5, the whey powder is mixed most evenly, and the piglets ingest the most nutrients. In addition, if there is no agglomeration, it will not remain in the feed line and feed trough to cause blockage of the feed line, affecting the intake of nutrients for piglets. Appropriate alfalfa can stimulate the intestinal development of piglets, but the alfalfa powder content in test groups 4 and 5 is high, which reduces the concentration of other nutrients, so the daily weight gain is lower than that of test group 3. In addition, through unexpected experiments, it was found that in the ratio of whey powder, calcium chloride, magnesium stearate and alfalfa powder, as the proportion of alfalfa powder and calcium chloride increased, the daily weight gain of piglets decreased, and the stability of daily weight gain increased first (301±20 in test group 3). a , test group 4 was 229±10 a ) and then dropped rapidly (173±45 in test group 5 b ), it can be seen that the addition of calcium chloride and alfalfa powder in the range of 0.5-0.8 parts and 2-3 parts respectively can better balance the daily weight gain and daily weight gain stability, thereby differentiating the breeding between high-quality pigs and ordinary pigs.

[0090] Finally, it should be noted that the above test groups are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above test groups, those skilled in the art should understand that they can still modify the technical solutions described in the above test groups, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the test groups of the present invention.

Claims

1. A high lactose content creep feed with reduced caking, characterized in that: The creep material comprises: A prefabricated lactose source, the prefabricated lactose source comprising prefabricated whey powder, a wood fiber source and a molding agent, the prefabricated whey powder comprising whey powder, magnesium stearate and calcium chloride; the weight ratio of the whey powder to the calcium chloride is controlled within the range of 15:1 to 30:1; the weight proportion of the wood fiber source in the creep feed does not exceed 3%; Feed raw materials, including carbohydrate sources, protein sources, fat sources, mineral supplements and auxiliary additives.

2. The high lactose content creep feed for reducing caking according to claim 1, characterized in that By weight, the feed raw materials include 45-55 parts of a carbohydrate source, 20-25 parts of a protein source, 1-3 parts of a fat source, 1.2-1.8 parts of a mineral supplement, and 0.5-1.5 parts of an auxiliary additive.

3. The high lactose content creep feed for reducing caking according to claim 1 or 2, characterized in that: The carbohydrate source is one or more of puffed rice, puffed corn, and rice grains for suckling pig feed; Optionally, the protein source is one or more of fermented soybean meal, puffed soybean, 46% soybean meal, and first-grade fish meal; Optionally, the fat source is soybean oil.

4. The high lactose content creep feed for reducing caking according to claim 1 or 2, characterized in that: The mineral supplement is one or more of stone powder, calcium hydrogen phosphate, and zinc oxide; Optionally, the auxiliary additive is citric acid and / or a premix.

5. The high lactose content creep feed for reducing caking according to claim 1, characterized in that: In parts by weight, the prefabricated lactose source comprises 13-18 parts of whey powder, 0.05-0.15 parts of magnesium stearate, 0.5-1 parts of calcium chloride, 1-3 parts of wood fiber source, and 3-7 parts of molding agent.

6. The high lactose content creep feed for reducing caking according to claim 5, characterized in that: The wood fiber source is alfalfa meal; Preferably, the alfalfa powder has a particle size of 1 mm; Optionally, the shaping agent is flour.

7. The high lactose content creep feed for reducing caking according to claim 1, characterized in that: The weight ratio of the whey powder to the calcium chloride is 30; the weight proportion of the wood fiber source in the creep material is 2%, and the weight ratio of the wood fiber source to the magnesium stearate is 20.

8. The high lactose content creep feed for reducing caking according to claim 1, characterized in that: The weight ratio of the whey powder to the calcium chloride is 18.75; the weight proportion of the wood fiber source in the creep material is 3%, and the weight ratio of the wood fiber source to the magnesium stearate is 30.

9. A method for preparing a high lactose content creep feed with reduced caking as claimed in any one of claims 1 to 8, characterized in that: include: The prefabricated whey powder is mixed with a wood fiber source and a molding agent to prepare a prefabricated lactose source, wherein the prefabricated whey powder comprises whey powder, magnesium stearate and calcium chloride; wherein the weight ratio of the whey powder to the calcium chloride is controlled within a range of 15:1 to 30:1; and the weight proportion of the wood fiber source in the creep feed does not exceed 3%; The prefabricated lactose source is mixed with feed raw materials to prepare a high lactose content creep feed with reduced caking. The feed raw materials include a carbohydrate source, a protein source, a fat source, a mineral supplement and auxiliary additives.

10. The method according to claim 9, characterized in that: The protein source comprises puffed soybeans. Before the feed material is mixed with the prefabricated lactose source, the puffed soybeans are crushed to a particle size of 0.8 mm and mixed with the prefabricated lactose source before other components.

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