Application of bread flour in preparation of superfine comminuted feed for piglets

Abstract

The invention discloses an application of bread flour in preparation of a superfine comminuted feed for piglets, and belongs to the field of feeds. The grain and protein raw materials are subjected to superfine grinding, and although small feed particles are easy to absorb, intestinal health is damaged, and growth performance is not facilitated. On the basis, the bread flour is added to improve gastrointestinal injury of the piglets caused by the superfine grinding feed, relieve the diarrhea problem of the piglets and improve the growth performance of the piglets.

Description

Technical Field

[0001] The present invention belongs to the field of feeds and relates to the application of bread flour in the preparation of ultrafine pulverized feeds for piglets. Background Art

[0002] In modern pig farming production, the growth performance and health status of piglets have an important impact on the economic benefits of the entire breeding cycle. As the main nutritional source for piglet growth, the quality and digestibility of feeds directly determine the growth rate, feed conversion rate, and health level of piglets. Ultrafine pulverized feeds refer to feeds obtained by pulverizing feed raw materials into tiny particles through ultrafine pulverization technology. This technology uses mechanical or hydrodynamic methods to overcome the internal cohesion of solids and pulverizes the material particles into powders with a diameter less than 10 μm. With the continuous development of feed processing technology, ultrafine pulverization technology has gradually been applied to feed production to improve the utilization rate of feed nutrients and the production performance of animals.

[0003] The particle size of feed pulverization has a significant impact on the production performance of piglets. Appropriately reducing the feed particle size can increase the surface area of the feed, promote the full contact between digestive enzymes and the feed, and thus improve the digestive absorption rate of the feed and the feed intake of piglets. However, too fine a pulverization particle size may also bring some negative impacts, such as increasing gastrointestinal keratinization and damaging the gastrointestinal tract of piglets. For example, when the pulverization particle sizes of the feed are 1000 μm, 800 μm, 600 μm, and 400 μm respectively, the gastrointestinal keratinization indices are 0.3, 1.2, 1.2, and 2.3 respectively, and the gastrointestinal damage indices are 0.2, 0.1, 0.1, and 0.9 respectively. In addition, some studies have shown that when the pulverization particle size of corn decreases from 1200 μm to 400 μm, the degree of gastric ulcer in pigs shows an increasing trend. Therefore, there is an urgent need for a formulation technology that can ensure an appropriate feed particle size, maximize the utilization rate of nutritional components, and avoid adverse effects on the gastrointestinal tract of piglets.

[0004] In the field of food processing, especially during the bread production process, a large amount of bread is often discarded due to non-compliance in shape, size, color, or the presence of defects, expiration, etc. These discarded breads not only represent a waste of resources but also pose an environmental burden. Current existing technologies have tried to pulverize these breads and use them as supplementary sources of grains and proteins, but other potential effects of bread flour in feeds have not been fully revealed and disclosed. Therefore, further exploring the application of bread flour in feeds not only helps to realize the resource utilization of waste but may also bring new breakthroughs and development opportunities to the feed industry. Summary of the Invention

[0005] In view of the above technical problems, the present invention provides the use of bread flour in the preparation of ultrafine pulverized feed for piglets, aiming to alleviate the problems of gastrointestinal keratinization, gastrointestinal tract damage and diarrhea caused by piglets consuming ultrafine pulverized feed.

[0006] In a first aspect, the present invention provides an ultrafine pulverized feed for piglets, wherein the particle size of the materials in the ultrafine pulverized feed for piglets is not higher than 3 mm, and the ultrafine pulverized feed for piglets comprises bread flour and a daily ration.

[0007] Furthermore, in the ultrafine pulverized feed for piglets provided by the present invention, the addition amount of the bread flour is 8% - 10% of the mass of the ultrafine pulverized feed.

[0008] Furthermore, in the ultrafine pulverized feed for piglets provided by the present invention, the ultrafine pulverized feed for piglets comprises: 10000 - 12500 parts of corn, 11000 - 13000 parts of broken rice, 8000 - 11000 parts of bread flour, 5500 - 6500 parts of expanded soybean, 7500 - 8500 parts of soybean hydrolyzed protein HP300, 4500 - 5200 parts of soybean hydrolyzed protein, 3800 - 4700 parts of soybean meal, 9300 - 11500 parts of high-protein whey powder, 7000 - 8400 parts of low-protein whey powder, 2000 - 2600 parts of yeast extract, 5700 - 6500 parts of sucrose, 2800 - 3200 parts of glucose, 1800 - 2200 parts of pig concentrated feed, 3000 - 3500 parts of wheat bran, 1400 - 1600 parts of quick-energy milk fat, 1400 - 1600 parts of soybean oil, 200 - 700 parts of linseed oil powder, 470 - 500 parts of calcium dihydrogen phosphate, 600 - 800 parts of sodium glutamate, 800 - 860 parts of calcium citrate, 150 - 200 parts of Kefei acid - 50, 500 - 576 parts of lysine, 260 - 271 parts of methionine, 300 - 315 parts of threonine, 100 - 120 parts of tryptophan, 170 - 200 parts of valine, 60 - 90 parts of isoleucine, 20 - 40 parts of coated VC, 500 - 550 parts of sodium chloride, 20 - 40 parts of antioxidant, 20 - 25 parts of pig sweetener, 30 - 35 parts of pig flavoring agent, 35 - 37 parts of bile salt, 88 - 110 parts of tannic acid, 90 - 110 parts of choline chloride, 80 - 150 parts of TK4307, 80 - 1040 parts of 5610V9.

[0009] Furthermore, in the ultrafine pulverized feed for piglets provided by the present invention, the ultrafine pulverized feed for piglets comprises: 11,849 parts of corn, 12,000 parts of broken rice, 10,000 parts of bread flour, 6,000 parts of expanded soybean, 8,000 parts of soy protein hydrolyzate HP300, 5,000 parts of soy protein hydrolyzate, 4,100 parts of soybean meal, 10,000 parts of high-protein whey powder, 8,000 parts of low-protein whey powder, 2,000 parts of yeast extract, 6,000 parts of sucrose, 3,000 parts of glucose, 2,000 parts of pig concentrated feed, 3,000 parts of wheat bran, 1,500 parts of quick-energy milk fat, 1,500 parts of soybean oil, 500 parts of linseed oil powder, 470 parts of calcium dihydrogen phosphate, 800 parts of sodium glutamate, 860 parts of calcium citrate, 200 parts of Kefei acid-50, 576 parts of lysine, 265 parts of methionine, 300 parts of threonine, 110 parts of tryptophan, 190 parts of valine, 70 parts of coated VC, 500 parts of sodium chloride, 40 parts of antioxidant, 25 parts of pig sweetener, 30 parts of pig flavoring agent, 35 parts of bile salt, 100 parts of tannic acid, 100 parts of choline chloride, 150 parts of TK4307, and 1,000 parts of 5610V.

[0010] Furthermore, in the ultrafine pulverized feed for piglets provided by the present invention, the gelatinization degree of the ultrafine pulverized feed for piglets is 60% - 70%, and the hardness is 20 - 30 N.

[0011] In the second aspect, the present invention provides the application of bread flour in the preparation of ultrafine pulverized feed for piglets.

[0012] Furthermore, in the application provided by the present invention, the bread flour is used to improve diarrhea caused by ultrafine pulverized feed.

[0013] Furthermore, in the application provided by the present invention, the particle size of the materials in the ultrafine pulverized feed for piglets is not higher than 3 mm.

[0014] Furthermore, in the application provided by the present invention, the gelatinization degree of the ultrafine pulverized feed for piglets is 60% - 70%, and the hardness is 20 - 30 N.

[0015] Furthermore, in the application provided by the present invention, the addition amount of the bread flour is 8% - 10% of the mass of the ultrafine pulverized feed.

[0016] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects or advantages:

[0017] In the present invention, bread powder is added to the ultrafinely ground feed. Compared with the ordinary feed, the average final weight, feed intake, and daily weight gain of the ultrafinely ground feed added with bread powder increased by 8.52%, 12.57%, and 21.26% respectively, while the feed-to-meat ratio and diarrhea rate decreased by 7.25% and 32.61% respectively. The addition of bread powder to the ultrafinely ground feed not only optimizes the nutrient absorption efficiency of the feed, promotes the healthy growth of piglets, but also effectively reduces the burden on the gastrointestinal tract and the incidence of diarrhea, thereby comprehensively improving the breeding efficiency and providing a new idea for solving the problem of piglet diarrhea. Detailed implementation manners

[0018] Next, the technical solutions of the present invention will be described in conjunction with the embodiments. However, the present invention is not limited to the following embodiments. The experimental methods and detection methods described in each embodiment are conventional methods unless otherwise specified; the reagents and materials described are commercially available unless otherwise specified.

[0019] In the following embodiments, the bread powder was purchased from Jinan Senkuan Biotechnology Co., Ltd., the broken rice was purchased from Urumqi Mitenong Planting Farmers Professional Cooperative, the soy protein hydrolyzate HP300 and soy protein hydrolyzate were both purchased from Danish Hamlet Protein Company, the high-protein whey powder was purchased from Shanghai Hehong Trading Company, the low-protein whey powder was purchased from American Prante Dairy Products Company, the yeast extract was purchased from Kekedala Angel Yeast Co., Ltd., the pig concentrated feed was purchased from Cargill Feed (Tianjin) Co., Ltd., the Sunolac was purchased from Hunan Zhonglian Biotechnology Co., Ltd., the soybean oil was purchased from Qinhuangdao Jinhai Grain and Oil Industry Co., Ltd., the monosodium glutamate was purchased from Meihua Biotechnology Group Co., Ltd., the benzoic acid was purchased from Hunan Hongrun Chemical Technology Co., Ltd., the coated VC was purchased from Gu'an Samp Biochemical Technology Co., Ltd., the antioxidant was purchased from Jianming (China) Technology Co., Ltd., the pig sweetener and pig flavor were purchased from Chengdu Dadi Hank Biotechnology Co., Ltd., the bile salt 30% was purchased from Shandong Longchang Animal Health Products Co., Ltd., the slow-release microporous zinc oxide was purchased from Beijing Fanteshi Technology Co., Ltd., the TK4307 was purchased from Changsha Xingjia Bioengineering Co., Ltd., the 5610V was purchased from Tiankang Biotech Co., Ltd., the Kefei Acid-50 was purchased from Guangzhou Insait Biotechnology Co., Ltd., the wheat bran was purchased from Xinjiang Yifengyuan Trading Co., Ltd., and the linseed oil powder was purchased from COFCO Grain and Oil Industry Co., Ltd.

[0020] Example 1

[0021] This example provides an ultrafinely ground feed containing bread powder.

[0022] The ultramicro-pulverized feed containing bread flour in this embodiment includes major ingredients and minor ingredients. Among them, the major ingredients include: corn, broken rice, bread flour, extruded soybean, soy protein hydrolyzate HP300, soy protein hydrolyzate, soybean meal, high-protein whey powder, low-protein whey powder, and wheat bran; the minor ingredients include yeast extract, sucrose, glucose, pig concentrated feed, quick-energy milk fat, soybean oil, linseed oil powder, calcium dihydrogen phosphate, sodium glutamate, calcium citrate, Kefei acid-50, lysine, methionine, threonine, tryptophan, valine, isoleucine, coated VC, sodium chloride, antioxidant, pig sweetener, pig flavoring agent, bile salt 30%, tannic acid, choline chloride, TK4307, and 5610V.

[0023] The formula composition of the ultramicro-pulverized feed containing bread flour in this embodiment includes: 11,549 parts of corn, 12,000 parts of broken rice, 10,000 parts of bread flour, 6,000 parts of extruded soybean, 8,000 parts of soy protein hydrolyzate HP300, 5,000 parts of soy protein hydrolyzate, 4,100 parts of soybean meal, 10,000 parts of high-protein whey powder, 8,000 parts of low-protein whey powder, 2,000 parts of yeast extract, 6,000 parts of sucrose, 3,000 parts of glucose, 2,000 parts of pig concentrated feed, 3,000 parts of wheat bran, 1,500 parts of quick-energy milk fat, 1,500 parts of soybean oil, 500 parts of linseed oil powder, 470 parts of calcium dihydrogen phosphate, 800 parts of sodium glutamate, 860 parts of calcium citrate, 200 parts of Kefei acid-50, 576 parts of lysine, 265 parts of methionine, 300 parts of threonine, 110 parts of tryptophan, 190 parts of valine, 70 parts of isoleucine, 30 parts of coated VC, 500 parts of sodium chloride, 40 parts of antioxidant, 25 parts of pig sweetener, 30 parts of pig flavoring agent, 35 parts of bile salt, 100 parts of tannic acid, 100 parts of choline chloride, 150 parts of TK4307, and 1,000 parts of 5610V.

[0024] Example 2

[0025] This embodiment provides an ultramicro-pulverized feed containing bread flour.

[0026] The ultramicro-pulverized feed containing bread flour in this embodiment includes major ingredients and minor ingredients. Among them, the major ingredients include: corn, broken rice, bread flour, extruded soybean, soy protein hydrolyzate HP300, soy protein hydrolyzate, soybean meal, high-protein whey powder, low-protein whey powder, and wheat bran; the minor ingredients include yeast extract, sucrose, glucose, pig concentrated feed, quick-energy milk fat, soybean oil, linseed oil powder, calcium dihydrogen phosphate, sodium glutamate, calcium citrate, Kefei acid-50, lysine, methionine, threonine, tryptophan, valine, isoleucine, coated VC, sodium chloride, antioxidant, pig sweetener, pig flavoring agent, bile salt 30%, tannic acid, choline chloride, TK4307, and 5610V.

[0027] The formula composition of the ultrafinely ground feed containing bread flour in this embodiment includes: 12,500 parts of corn, 11,000 parts of broken rice, 8,000 parts of bread flour, 6,500 parts of extruded soybean, 8,500 parts of soy protein hydrolyzate HP300, 4,500 parts of soy protein hydrolyzate, 4,700 parts of soybean meal, 11,500 parts of high-protein whey powder, 7,000 parts of low-protein whey powder, 2,400 parts of yeast extract, 6,500 parts of sucrose, 2,800 parts of glucose, 1,800 parts of pig concentrated feed, 3,300 parts of wheat bran, 1,400 parts of quick-energy milk fat, 1,400 parts of soybean oil, 700 parts of linseed oil powder, 479 parts of monocalcium phosphate, 600 parts of sodium glutamate, 800 parts of calcium citrate, 150 parts of Kefei acid-50, 526 parts of lysine, 260 parts of methionine, 315 parts of threonine, 100 parts of tryptophan, 170 parts of valine, 90 parts of isoleucine, 20 parts of coated VC, 530 parts of sodium chloride, 30 parts of antioxidant, 20 parts of pig sweetener, 35 parts of pig flavoring, 35 parts of bile salt, 110 parts of tannic acid, 110 parts of choline chloride, 80 parts of TK4307, and 1,040 parts of 5610V.

[0028] Example 2

[0029] This embodiment provides an ultrafinely ground feed containing bread flour.

[0030] The ultrafinely ground feed containing bread flour in this embodiment includes major ingredients and minor ingredients. Among them, the major ingredients include: corn, broken rice, bread flour, extruded soybean, soy protein hydrolyzate HP300, soy protein hydrolyzate, soybean meal, high-protein whey powder, low-protein whey powder, and wheat bran; the minor ingredients include yeast extract, sucrose, glucose, pig concentrated feed, quick-energy milk fat, soybean oil, linseed oil powder, monocalcium phosphate, sodium glutamate, calcium citrate, Kefei acid-50, lysine, methionine, threonine, tryptophan, valine, isoleucine, coated VC, sodium chloride, antioxidant, pig sweetener, pig flavoring, 30% of bile salt, tannic acid, choline chloride, TK4307, and 5610V.

[0031] The formula composition of the ultrafine pulverized feed containing bread flour in this embodiment includes: 10,000 parts of corn, 13,000 parts of broken rice, 11,000 parts of bread flour, 5,500 parts of extruded soybean, 7,500 parts of soybean hydrolyzed protein HP300, 5,200 parts of soybean hydrolyzed protein, 3,800 parts of soybean meal, 9,300 parts of high-protein whey powder, 8,400 parts of low-protein whey powder, 2,600 parts of yeast extract, 5,700 parts of sucrose, 3,200 parts of glucose, 2,200 parts of pig concentrated feed, 3,500 parts of wheat bran, 1,600 parts of quick-energy milk fat, 1,600 parts of soybean oil, 200 parts of linseed oil powder, 500 parts of calcium dihydrogen phosphate, 729 parts of sodium glutamate, 850 parts of calcium citrate, 200 parts of Kefei acid-50, 500 parts of lysine, 271 parts of methionine, 310 parts of threonine, 120 parts of tryptophan, 200 parts of valine, 60 parts of coated VC, 550 parts of sodium chloride, 20 parts of antioxidant, 25 parts of pig sweetener, 30 parts of pig flavoring agent, 37 parts of bile salt, 88 parts of tannic acid, 90 parts of choline chloride, 100 parts of TK4307, and 980 parts of 5610V.

[0032] Example 4

[0033] This embodiment provides a preparation method of the ultrafine pulverized feed containing bread flour.

[0034] Corn, broken rice, bread flour, extruded soybean, soybean meal and wheat bran are respectively ultrafinely pulverized and sieved. The aperture of the sieve plate is 1 mm to obtain the ultrafine pulverized material; the ultrafine pulverized material is mixed evenly with the remaining raw materials in Example 1 and granulated. The granulation temperature in this embodiment is 60°C to 70°C, the ring die compression ratio is 1:3, the particle size of the obtained particles is 2.8 mm, the gelatinization degree is 60% to 70%, and the hardness is 20 to 30 N.

[0035] Example 5

[0036] This embodiment provides the influence of the ultrafine pulverized feed on the gastrointestinal tract of piglets.

[0037] 1. Preparation work before the experiment

[0038] The experiment was carried out at Tiange Animal Husbandry Breeding Base in Korla, Xinjiang in 2024, and the experiment lasted for 15 days. 360 weaned piglets with a body weight of 7.0 kg (±0.5 kg) were selected and randomly divided into 2 groups according to gender and body weight. There were 4 replicates in each group, and 30 piglets in each replicate. The average weight difference between groups was less than 0.2 kg, the standard deviation of body weight in each group was less than 0.5, and the difference in initial average weight between groups was not significant. The grouping of each experimental group is shown in Table 2.

[0039] Table 2 Grouping of each experimental group

[0040] Group Diet Feed intake Control group Basal diet 4 kg / head Experimental group 1 Ultra-fine pulverized feed + zinc oxide 4 kg / head Experimental group 2 Example 1 4 kg / head

[0041] Note: The diet compositions of Control Group 1 and Experimental Group 1 are the same as those in Example 1, except that both do not contain bread flour. The diet of the control group was not ultramicro pulverized, while Experimental Group 1 was prepared by the method described in Example 4. In addition, zinc oxide has astringent and antibacterial effects and can effectively relieve the diarrhea symptoms of piglets.

[0042] 2. Diarrhea assessment criteria for each experimental group

[0043] (1) Diarrhea record

[0044] Observe the diarrhea situation of piglets. Observation method: Observe whether there is watery feces at the manure channel of the experimental pen, and combine the pollution situation near the anus of the piglets and the mental state of the pigs for observation and record. Record the total number of diarrhea piglets per day in each pen, and calculate the diarrhea frequency. Among them, the diarrhea rate = the total number of diarrhea head-days of piglets in each group / (the number of piglets × the number of experimental days) × 100%. Observe the differences in feces among groups and take photos for comparison.

[0045] (2) Diarrhea scoring criteria

[0046] Observe the feces of piglets once at 8:00 am every day during the experiment. A score of 2 or above is recorded as diarrhea. Use the highest score as the diarrhea score of the pig on the same day, and carefully judge whether it is the same piglet with diarrhea to avoid duplicate recording or omission. The diarrhea scoring criteria are shown in Table 3:

[0047] Table 3 Diarrhea scoring criteria

[0048] Degree of diarrhea Appearance Score Normal Dry, formed or granular 0 Mild Soft feces, can be formed 1 Moderate Thick, unformed, no separation of feces and water 2 Severe Liquid, unformed, separation of feces and water 3

[0049] 3. Growth performance analysis of each experimental group

[0050] Weigh the initial weight, final weight, and the weight of dead or culled pigs of each piglet one by one. When weighing the initial weight and final weight, note that the feed trough should be empty. Weigh the initial weight and final weight when there is no feed in the feed trough of the experimental pig group. (After each stage of feed is fed, weighing is required to enter the next stage of the experiment), and record the average daily gain (ADG) of the piglets. The calculation method of the average daily gain is as follows:

[0051] ADG / (g / d) Average daily gain = (final weight - initial weight) ÷ number of days

[0052] Record the feeding amount, weight, and feed intake of each group every day at a fixed time point. Add feed when the feed in each pen's feed trough is about to be eaten up, and record and count the feeding differences. The calculation methods of the feed intake (ADFI) and feed-to-gain ratio (F / G) of piglets are as follows:

[0053] ADFI / (g / d) Feed intake = total feed intake ÷ number of days ÷ sample size

[0054] F / G Feed-to-gain ratio = ADFI ÷ ADG

[0055] 4. Test Results

[0056] Table 4 Effects of Adding Bread Flour to Ultrafine - Ground Feed on the Production Performance of Piglets

[0057]

[0058]

[0059] Note: Different lowercase letters indicate significant differences.

[0060] As shown in Table 4, there were no significant differences in the initial average weights among the control group, experimental group 1, and experimental group 2, indicating that the initial weight of piglets did not affect the test results. Compared with the ordinary feed (control group), after adding zinc oxide to the ultrafine - ground feed (experimental group 1), the feed intake and final average weight of piglets changed slightly; the daily weight gain of piglets increased by 6.80%, and the feed - to - gain ratio decreased by 6.52%, indicating that the ultrafine - ground feed could promote the absorption and utilization of nutrients by piglets, thereby increasing the daily weight gain of piglets and improving the feed utilization efficiency. In addition, since the ultrafine - ground feed would damage the gastrointestinal health of piglets and cause diarrhea, the present invention alleviated the diarrhea symptoms of piglets by adding slow - release microporous zinc oxide and zinc oxide to the ultrafine - ground feed. It can be seen from Table 4 that although adding zinc oxide was used to prevent diarrhea in piglets, compared with the ordinary feed (control group), the diarrhea rate of the ultrafine - ground feed (experimental group 1) still increased by 3.42%. Compared with the ordinary feed (control group), the final average weight, feed intake of the ultrafine - ground feed with added bread flour (experimental group 2) increased by 8.52%, 12.57%, and 21.26% respectively, while the feed - to - gain ratio and diarrhea rate decreased by 7.25% and 32.61% respectively, indicating that the addition of bread flour to the ultrafine - ground feed not only optimized the nutrient absorption efficiency of the feed, promoted the healthy growth of piglets, but also effectively reduced the burden on the gastrointestinal tract and the diarrhea incidence rate, thus comprehensively improving the breeding efficiency and providing a new idea for solving the problem of piglet diarrhea.

[0061] In addition to the above test data, this application also detected the feeding effects of the feeds described in Example 2 and Example 3 on piglets. When feeding piglets with the feed described in Example 2, the feeding amount per piglet was 4 kg, the initial average weight of piglets was 6.90 kg, the feed intake of piglets was 459.21 g / d, the daily weight gain was 357.87 g / d, the feed - to - gain ratio was 1.28, the diarrhea rate was 2.23%, and the final average weight was 12.27 kg. When feeding piglets with the feed described in Example 2, the feeding amount per piglet was 4 kg, the initial average weight of piglets was 7.10 kg, the feed intake of piglets was 460.93 g / d, the daily weight gain was 361.02 g / d, the feed - to - gain ratio was 1.28, the diarrhea rate was 1.08%, and the final average weight was 12.52 kg.

[0062] The embodiments described above are some, but not all, of the embodiments of the present invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art through relevant deductions and substitutions made under the condition of the concept of the present invention without creative efforts fall within the scope of protection of the present invention.

Claims

1. A superfine pulverized feed for piglets, wherein the particle size of the materials in the superfine pulverized feed for piglets is not higher than 3 mm, and it is characterized in that, The ultra-finely ground feed for piglets comprises bread flour and a daily ration.

2. The ultramicro-pulverized feed for piglets according to claim 1, wherein The addition amount of the bread flour is 8% - 10% of the quality of the ultra-finely ground feed.

3. The ultramicro pulverized feed for piglets according to claim 1, characterized in that, The ultra-finely ground feed for piglets comprises: 10000 - 12500 parts of corn, 11000 - 13000 parts of broken rice, 8000 - 11000 parts of bread flour, 5500 - 6500 parts of expanded soybean, 7500 - 8500 parts of soy protein hydrolyzate HP300, 4500 - 5200 parts of soy protein hydrolyzate, 3800 - 4700 parts of soybean meal, 9300 - 11500 parts of high-protein whey powder, 7000 - 8400 parts of low-protein whey powder, 2000 - 2600 parts of yeast extract, 5700 - 6500 parts of sucrose, 2800 - 3200 parts of glucose, 1800 - 2200 parts of pig concentrated feed, 3000 - 3500 parts of wheat bran, 1400 - 1600 parts of quick-energy milk fat, 1400 - 1600 parts of soybean oil, 200 - 700 parts of linseed oil powder, 470 - 500 parts of calcium dihydrogen phosphate, 600 - 800 parts of sodium glutamate, 800 - 860 parts of calcium citrate, 150 - 200 parts of Kefei acid - 50, 500 - 576 parts of lysine, 260 - 271 parts of methionine, 300 - 315 parts of threonine, 100 - 120 parts of tryptophan, 170 - 200 parts of valine, 60 - 90 parts of isoleucine, 20 - 40 parts of coated VC, 500 - 550 parts of sodium chloride, 20 - 40 parts of antioxidant, 20 - 25 parts of pig sweetener, 30 - 35 parts of pig flavoring agent, 35 - 37 parts of bile salt, 88 - 110 parts of tannic acid, 90 - 110 parts of choline chloride, 80 - 150 parts of TK4307, 80 - 1040 parts of 5610V.

4. The ultramicro-pulverized feed for piglets according to claim 3, wherein, The ultra-finely ground feed for piglets comprises: 11549 parts of corn, 12000 parts of broken rice, 10000 parts of bread flour, 6000 parts of expanded soybean, 8000 parts of soy protein hydrolyzate HP300, 5000 parts of soy protein hydrolyzate, 4100 parts of soybean meal, 10000 parts of high-protein whey powder, 8000 parts of low-protein whey powder, 2000 parts of yeast extract, 6000 parts of sucrose, 3000 parts of glucose, 2000 parts of pig concentrated feed, 3000 parts of wheat bran, 1500 parts of quick-energy milk fat, 1500 parts of soybean oil, 500 parts of linseed oil powder, 470 parts of calcium dihydrogen phosphate, 800 parts of sodium glutamate, 860 parts of calcium citrate, 200 parts of Kefei acid - 50, 576 parts of lysine, 265 parts of methionine, 300 parts of threonine, 110 parts of tryptophan, 190 parts of valine, 70 parts of isoleucine, 30 parts of coated VC, 500 parts of sodium chloride, 40 parts of antioxidant, 25 parts of pig sweetener, 30 parts of pig flavoring agent, 35 parts of bile salt, 100 parts of tannic acid, 100 parts of choline chloride, 150 parts of TK4307, 1000 parts of 5610V.

5. The ultramicro pulverized feed for piglets according to any one of claims 1 to 3, characterized in that, The gelatinization degree of the ultra-finely ground feed for piglets is 60% - 70%, and the hardness is 20 - 30 N.

6. Application of bread flour in preparing the ultra-finely ground feed for piglets.

7. The application according to claim 6, characterized in that, The bread flour is used to improve diarrhea caused by ultrafine pulverized feed.

8. The application according to claim 6, characterized in that, The particle size of the materials in the ultrafine pulverized feed for piglets is not higher than 3 mm.

9. The application according to claim 6, characterized in that, The gelatinization degree of the ultrafine pulverized feed for piglets is 60% - 70%, and the hardness is 20 - 30 N.

10. The application according to claim 6, wherein The addition amount of the bread flour is 8% - 10% of the mass of the ultrafine pulverized feed.

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