Preparation method of efficient green functional antiviral piglet premix

Abstract

The invention relates to a preparation method of an efficient green functional antiviral piglet premix, and belongs to the technical field of piglet feeds. The method comprises the following steps: mixing endothelium corneum gigeriae galli, chicken claw skin and chicken blood in proportion, and carrying out mincing, high-temperature sterilization curing and enzymolysis reaction to generate water-soluble polypeptide and free amino acid; crushing and mixing folium isatidis, astragalus membranaceus and other Chinese herbal medicines with probiotics to form a Chinese herbal medicine mixed raw material; and fermenting the enzymolysis product and the Chinese herbal medicine mixed raw material in proportion, drying at low temperature, and mixing with lysine, methionine and the like in proportion to prepare the 3% antiviral piglet premix. Through the innovative process, the utilization rate of poultry slaughtering byproducts is remarkably increased, environmental pollution is reduced, the antiviral capacity of piglets is enhanced, the nutritional value of the feed and the quality of pork are improved, meanwhile, dependence on imported raw materials such as soybean meal is reduced, and green and sustainable development of animal husbandry is promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of piglet feed, and specifically to a preparation method of an efficient, green and functional antiviral piglet premix. Background Art

[0003] In traditional feed production, there are significant defects in the utilization of poultry slaughter by-products (such as chicken gizzards, chicken feet skins, and chicken blood):

[0004] 1. Resource waste and inefficient processing: Chicken gizzards and chicken feet skins are mostly discarded or simply processed into low-value feather meal. Chicken blood needs to be boiled at high temperature, sun-dried or dried to make chicken blood powder. The processing energy consumption is high and the product palatability is poor, resulting in low resource utilization rate.

[0005] 2. Nutrient loss and environmental pollution: The traditional process destroys the active ingredients (such as proteins and enzymes) in the raw materials, resulting in low feed digestion and absorption rate, high content of undigested organic matter in piglet feces, and large ammonia emissions, exacerbating environmental pollution.

[0006] 3. Insufficient functionality: Existing premixes mostly rely on chemical additives, lack antiviral components, and have limited ability to regulate the intestinal flora of piglets, making it difficult to effectively improve immunity, resulting in prominent problems of antibiotic abuse.

[0007] 4. Complex process and high cost: Traditional production relies on high-temperature sterilization, drying and sun-drying links, with high energy consumption and easy destruction of active substances such as probiotics and polypeptides. At the same time, a large amount of manual operation is required, and the comprehensive cost is difficult to control.

[0008] 5. Single compatibility and raw material dependence: The proportion of soybean meal and fish meal in the feed formula is too high, and there is a lack of efficient conversion technology for agricultural waste, restricting the sustainable development of the industry.

[0009] Therefore, in view of this, in order to research and improve the existing technology, a preparation method of an efficient, green and functional antiviral piglet premix is proposed. Summary of the Invention

[0010] The technical problems to be solved by the present invention are resource waste and inefficient processing, nutrient loss and environmental pollution, insufficient functionality, complex process and high cost, single compatibility and raw material dependence.

[0011] The technical solution adopted by the present invention is as follows: A preparation method of an efficient, green and functional antiviral piglet premix, characterized in that it includes the following steps:

[0012] (1) Raw material pretreatment: Mix fresh chicken gizzards and chicken feet skins in a ratio of 1:1, grind them into a paste by a meat grinder, and mix them with chicken blood in a ratio of 1:1:1 to form a raw material mixture;

[0013] (2) High-temperature sterilization and ripening: Add the raw material mixture from step (1) into a high-temperature sterilization and ripening tank, stir and sterilize for 30 minutes under the conditions of 2.0 - 2.5 atmospheres and a temperature ≥ 100°C, add enzyme preparation after cooling to 50 - 55°C, and keep warm for 8 - 10 hours for enzymatic hydrolysis reaction to generate water-soluble polypeptides and free amino acids;

[0014] (3) Chinese herbal medicine compatibility: Crush folium isatidis, artemisia argyi powder, poria cocos, ginseng leaf, astragalus membranaceus, sophora flavescens, atractylodes lancea, coptis chinensis, honeysuckle stem, glucose, brown sugar, corn flour, soybean meal and probiotics through a 20-mesh pulverizer, and then configure and mix them in proportion to form a Chinese herbal medicine mixed raw material;

[0015] (4) Mixed fermentation: Add the enzymatic hydrolysis product from step (2) and the Chinese herbal medicine mixed raw material from step (3) into a fermentation tank at a ratio of 1:1, control the moisture content at 40% and the temperature at 30°C, mix evenly and then carry out anaerobic fermentation for 7 - 10 days;

[0016] (5) Low-temperature drying: Use sensor automatic control technology to reduce the moisture content of the high-moisture Chinese herbal medicine mixture after anaerobic fermentation by low-temperature pasteurization method, dry the fermentation product at a temperature ≤ 75°C until the moisture content ≤ 12% to obtain a fermented Chinese herbal medicine base material; in this way, the fermented Chinese herbal medicine is rich in key components such as active polypeptides, amino acids, organic acids and digestive enzymes, and these components cannot be damaged. These components can significantly improve the nutritional value of the feed. It can effectively supplement the protein and amino acids in the feed, especially for those feed raw materials with protein deficiency or low digestion and absorption efficiency, making them closer to the nutritional needs of animals. At the same time, the active polypeptides and free amino acids generated during the enzymatic hydrolysis process can also promote the utilization of other nutrients in the feed, thereby improving the overall nutritional value.

[0017] (6) Premix preparation: Mix the fermented Chinese herbal medicine base material with lysine, methionine, threonine, pig vitamins, ferrous sulfate, zinc oxide, iron hydroxy methionine, copper hydroxide chloride, zinc sulfate, zinc hydroxy methionine, manganese sulfate, sodium selenite, potassium iodide, cobalt chloride and choline in proportion to prepare a 3% functional antiviral piglet premix.

[0018] As a further solution of the present invention: The production equipment of the high-temperature sterilization and ripening tank in the step (2) includes: a boiler, a steam header, a tank interlayer, and a water tank. A vertical water pump is arranged on one side of the water tank, and the water outlet of the water tank and the water inlet of the vertical water pump are connected by welding with a seamless steel pipe. The boiler and the steam header, the boiler and the vertical water pump, and the steam header and the water tank are all connected by seamless steel pipes. And an exhaust valve I is arranged on the seamless steel pipe connecting the boiler and the steam header. Water valves are arranged on the seamless steel pipes connecting the boiler and the vertical water pump and the steam header and the water tank. One end of the seamless steel pipe connecting the boiler and the vertical water pump is connected to the water inlet of the boiler, and a check valve is arranged on it. The steam header is connected to the tank interlayer through a seamless steel pipe III. The seamless steel pipe III is branched, and an exhaust valve II and an exhaust valve are respectively arranged at the branch points. A shaft is rotatably arranged in the tank interlayer, and a plurality of stirring blades are evenly distributed around the shaft. The shaft and the stirring blades are fixed by screws. On the other side of the tank interlayer, a motor for driving the shaft to rotate is fixedly arranged, and the motor is connected to the shaft through a speed reducer. The bottom of the tank interlayer is connected to the water tank through a seamless steel pipe IV, and a steam-water separator is arranged on the seamless steel pipe IV;

[0019] Pressure gauges are arranged on the tops of both the boiler and the steam header. A safety valve is arranged on the top of the boiler. A water pump motor is arranged on the top of the vertical water pump. The tank interlayer is arranged in the tank, and a thermometer, a tank exhaust valve, and a feed inlet are arranged on the top of the tank. The thermometer is used to observe the temperature in the tank. An outlet is arranged on one side of the tank. The outlet is a flange with a diameter of 40 cm welded to the bottom of the tank.

[0020] As a further solution of the present invention: The preparation operation of the high-temperature sterilization and ripening tank before the start of step (2) is as follows:

[0021] Fill the water tank with water; start the water pump motor to add the boiler water to a proper position; heat the boiler water to 2.0 - 2.5 atmospheres; open the exhaust valve to discharge the boiler steam to the steam header; open the exhaust valve of the tank interlayer to discharge the high-temperature gas into the tank interlayer; at this time, the temperatures of the boiler, the steam header, and the tank interlayer are the same. Then turn on the switch of the motor to drive the shaft to rotate, and the stirring blades in the tank start to stir and operate. Then the feed inlet can be opened to perform the operation of step (2). When the material in the tank is dry and needs to be humidified and the temperature needs to be raised rapidly, the exhaust valve II can be opened, and the steam quickly enters the tank to instantly increase the temperature of the material in the tank. When the temperature and moisture are appropriate, immediately close the tank inlet valve II.

[0022] As a further solution of the present invention: When performing high-temperature sterilization and ripening in the step (2) of the high-temperature sterilization and ripening tank, the following points should be noted:

[0023] The motor continues to rotate. Observe the temperature inside the tank through the thermometer. After the temperature inside the tank reaches above 100 °C, run for another 30 minutes, and then close the interlayer exhaust valve. During this process, steam enters the tank interlayer from the boiler through the steam header and turns into water, releasing heat to heat up the materials inside the tank. Only water can flow into the water tank through the steam-water separator at the bottom of the tank. The reuse of water not only saves energy and water but also reduces environmental pollution. Open the tank exhaust valve to relieve the pressure in the tank interlayer. At this time, the materials inside the tank have formed a paste under the agitation of the stirring blades. When the pressure inside and outside the tank interlayer is the same, open the feed inlet, observe the temperature and moisture content inside the tank interlayer through the thermometer, and adjust the total moisture content to 70% using sterile water to form a flowing paste. When the materials are cooled to a suitable temperature of 50 °C, add enzyme preparations in proportion. Stop rotating the stirring blades ten minutes after the motor starts, and keep the material temperature between 50 - 55 °C for heat preservation for 8 - 10 hours. At this time, the microbial activity and enzymatic hydrolysis reaction reach the peak, and the macromolecular proteins in the raw materials are degraded into water-soluble polypeptides and free amino acids.

[0024] Supplementary description: The high-temperature sterilization and ripening tank is composed of two concentric cylinders rolled from boiler plates. The diameter and length are determined according to actual production. The two sides are welded with circular end covers, and the center is connected to the shaft through bearings. The interlayer formed between the two cylinders is 15 cm. The steam generated by the boiler enters the interlayer, and the temperature inside the tank rises through the interlayer.

[0025] As a further solution of the present invention: The mass percentages of the Chinese herbal medicine mixed raw materials in step (3) are as follows: Isatis indigotica 12.5%, Artemisia argyi powder 6.8%, Poria cocos 6.5%, Ginseng leaves 12.0%, Astragalus membranaceus 9.5%, Sophora flavescens 4.0%, Atractylodes lancea 5.8%, Coptis chinensis 6.0%, Lonicera japonica Thunb. 8.5%, glucose 2.0%, brown sugar 8.0%, corn flour 10.0%, soybean meal 8.0%, probiotics 0.4%.

[0026] As a further solution of the present invention: Before the mixed fermentation in step (4), the motor needs to be started to make the stirring blades inside the tank interlayer rotate, and then open the feed inlet. Add the enzymatic hydrolysis product in step and the Chinese herbal medicine mixed raw materials in step into the fermentation tank at a ratio of 1:1. After mixing evenly, open the discharge port and discharge the materials into the feed fermentation bag for anaerobic fermentation.

[0027] As a further solution of the present invention: The formula of the 3% antiviral piglet premix in step (6) is to add per ton of compound feed: 17000 g of fermented Chinese herbal medicine, 4500 g of lysine, 1200 g of methionine, 800 g of threonine, 700 g of pig vitamins, 680 g of ferrous sulfate, 2260 g of zinc oxide, 420 g of iron hydroxy methionine, 300 g of basic copper chloride, 400 g of zinc sulfate, 400 g of zinc hydroxy methionine, 200 g of manganese sulfate, 40 g of sodium selenite, 50 g of potassium iodide, 50 g of cobalt chloride, 1000 g of choline, and the total addition amount is 30000 g.

[0028] As a further solution of the present invention: The enzyme preparation includes one or a combination of more than one of amylase, protease, cellulase, lipase, xylanase and galactosidase.

[0029] As a further solution of the present invention: The premix is applicable to piglets weighing 15 kg - 45 kg, and the proportions of corn, soybean meal, wheat bran, fish meal, cooked soybeans, soybean oil, glucose, premix, calcium hydrogen phosphate, fine stone powder and salt in the compound feed are adjusted according to the weight stage of the piglets.

[0030] As a further solution of the present invention: The recommended proportions of the compound feed are as follows:

[0031] For the 15 kg - 25 kg stage: 63.65% of corn, 15% of soybean meal, 3% of wheat bran, 2.0% of fish meal, 9% of cooked soybeans, 2.0% of glucose, 3.0% of premix, 0.8% of calcium hydrogen phosphate, 1.2% of fine stone powder, 0.35% of salt;

[0032] For the 25 kg - 35 kg stage: 67.15% of corn, 24.0% of soybean meal, 1.0% of fish meal, 1.5% of soybean oil, 1.0% of glucose, 3.0% of premix, 0.8% of calcium hydrogen phosphate, 1.2% of fine stone powder, 0.35% of salt;

[0033] For the 35 kg - 45 kg stage: 66.65% of corn, 25% of soybean meal, 3% of wheat bran, 3.0% of premix, 0.8% of calcium hydrogen phosphate, 1.2% of fine stone powder, 0.35% of salt.

[0034] The beneficial effects of the present invention:

[0035] 1. Solve the problems of resource waste and inefficient processing

[0036] Through an innovative process, the present invention mixes chicken gizzard lining, chicken claw skin and chicken blood in a scientific proportion, and after comminution, high-temperature sterilization and enzymolysis reaction, it is transformed into a paste with high nutritional value, significantly improving the utilization rate of poultry slaughter by-products.

[0037] Compared with the traditional high-temperature boiling and sun-drying processes, the present invention eliminates the high-energy-consuming drying link, adopts sealed preservation with fermentation bags, reduces the processing cost, retains the active ingredients in the raw materials at the same time, and avoids resource waste.

[0038] 2. Improve feed nutrition and reduce environmental pollution

[0039] Through enzymatic hydrolysis reaction, macromolecular proteins are degraded into water-soluble polypeptides and free amino acids, significantly improving the digestion and absorption rate of feed, reducing the content of undigested organic matter in piglet feces, thereby reducing the emissions of harmful gases such as ammonia and hydrogen sulfide, and reducing environmental pollution.

[0040] Short-chain fatty acids (such as acetic acid, propionic acid, butyric acid) produced during the fermentation process can stimulate intestinal peristalsis, further promote the absorption of nutrients, reduce the decomposition of organic matter in feces, and inhibit the generation of odor from the source.

[0041] 3. Enhance antiviral function and regulate intestinal health

[0042] The present invention significantly improves the antiviral function of the premix, enhances the immunity of piglets, reduces the occurrence of diseases, and avoids the dependence on antibiotics by scientifically formulating Chinese herbal medicines (such as Isatis indigotica, Astragalus membranaceus, Coptis chinensis, etc.) and probiotics.

[0043] Probiotics form a flora barrier in the piglet intestine, protect intestinal mucosal cells, increase the height of intestinal villi and the depth of crypts, improve intestinal health, and secrete a variety of digestive enzymes (such as amylase, protease, cellulase, etc.) at the same time, making up for the deficiency of piglet endogenous enzymes and promoting the digestion and absorption of nutrients.

[0044] 4. Optimize the process and reduce costs

[0045] The present invention adopts a high-temperature sterilization and ripening tank and low-temperature pasteurization drying technology, simplifies the traditional complex processing process, avoids the damage of high temperature to active ingredients, and uses sensor automatic control technology to accurately control temperature and moisture at the same time, improving production efficiency.

[0046] By replacing the traditional sun-drying and drying with the fermentation process, the energy consumption and labor cost are greatly reduced, making the production process more green and efficient.

[0047] 5. Reduce raw material dependence and promote sustainable development

[0048] The present invention makes full use of poultry slaughter by-products as high-quality feed raw materials, reduces the dependence on imported raw materials such as soybean meal and fish meal, and alleviates the contradiction between humans and livestock for food.

[0049] By using biotechnology to convert agricultural waste into high-value-added feed, it promotes the recycling of resources and the green transformation and sustainable development of the livestock industry.

[0050] 6. Improve the quality and economic benefits of pork

[0051] Practice has shown that for piglets fed with the premix of the present invention, the quality of pork after slaughter is significantly improved, manifested as bright red meat color, obvious marbling, tender and juicy taste, and rich in various nutrients such as vitamin C, vitamin E, and glutamic acid. The content of trace elements (such as selenium, zinc, and calcium) is significantly higher than that of ordinary pork.

[0052] By improving the feed utilization rate and the health level of piglets, the breeding cost is reduced, the economic benefits of farmers are improved, and at the same time, the demand of consumers for high-quality and healthy pork is met. Description of the Drawings

[0053] Figure 1 It is a schematic structural diagram of a high-temperature sterilization and ripening tank for the preparation method of an efficient, green, functional and antiviral piglet premix of the present invention.

[0054] In the drawings:

[0055] 1. Boiler; 2. Pressure gauge; 3. Safety valve; 4. Exhaust valve 1; 5. Backflow valve; 6. Reducer; 7. Separator cylinder; 8. Exhaust valve 2; 9. Exhaust valve; 10. Thermometer; 11. Interlayer of the tank body; 12. Motor; 13. Water valve; 14. Water pump motor; 15. Vertical water pump; 16. Steam-water separator; 17. Water tank; 18. Stirring blade; 19. Shaft; 20. Discharge port; 21. Tank body exhaust valve; 22. Seamless steel pipe 2; 23. Seamless steel pipe 3; 24. Seamless steel pipe 4; 25. Feed port. Detailed Embodiments

[0056] The following describes in detail the preparation method of an efficient, green, functional and antiviral piglet premix of the present invention in conjunction with embodiments, but the protection scope of the present invention is not limited to the following embodiments.

[0057] Embodiment 1

[0058] 1. Pretreatment of raw materials

[0059] Mix fresh chicken gizzard membrane and chicken paw skin in a ratio of 1:1, and use a meat grinder to crush them into a paste.

[0060] Mix the crushed paste with chicken blood in a ratio of 1:1:1 to form a raw material mixture.

[0061] 2. High-temperature sterilization and ripening

[0062] Add the raw material mixture to the high-temperature sterilization and ripening tank, and start the equipment for high-temperature sterilization and ripening:

[0063] (1) Check that the water and electricity of the equipment are operating normally, fill the water tank 17 with water, and start the vertical water pump 15 to add boiler water to the appropriate position.

[0064] (2) Heat the boiler water to 2.0 - 2.5 atmospheres, slowly open the steam exhaust valve 4, and discharge the steam to the steam header 7.

[0065] (3) Open the exhaust valve 9 of the tank jacket 11 to allow high-temperature steam to enter the tank jacket 11, maintain the temperature in the tank ≥ 100 °C, and stir for 30 minutes.

[0066] (4) After sterilization, close the exhaust valve 9 and then open the tank exhaust valve 21 to relieve pressure. After the pressure inside and outside the tank is the same, open the feed port and adjust the moisture content to 70% to form a flowable paste.

[0067] (5) After cooling to 50 - 55 °C, add enzyme preparations (including amylase, protease, cellulase, etc.), keep warm for 8 - 10 hours for enzymatic hydrolysis reaction to generate water-soluble polypeptides and free amino acids.

[0068] 3. Compatibility of Chinese herbal medicines

[0069] Prepare the following raw materials according to the mass percentage: Isatis indigotica 12.5%, mugwort powder 6.8%, Poria cocos 6.5%, ginseng leaves and stems 12.0%, Astragalus membranaceus 9.5%, Sophora flavescens 4.0%, Atractylodes lancea 5.8%, Coptis chinensis 6.0%, honeysuckle vine 8.5%, glucose 2.0%, brown sugar 8.0%, corn flour 10.0%, soybean meal 8.0%, probiotics 0.4%.

[0070] Crush the above raw materials through a 20-mesh pulverizer and mix them evenly to form a mixed raw material of Chinese herbal medicines.

[0071] 4. Mixed fermentation

[0072] Add the enzymatic hydrolysis product and the mixed raw material of Chinese herbal medicines to the fermentation tank in a ratio of 1:1, control the moisture content to be 40%, and the temperature to be 30 °C.

[0073] Start the motor 12 to make the stirring blades rotate. After mixing evenly, discharge the material into the feed fermentation bag and carry out anaerobic fermentation for 7 - 10 days.

[0074] 5. Low-temperature drying

[0075] Use the sensor automatic control technology to dry the fermentation product by the low-temperature pasteurization method, control the temperature below 75 °C, and reduce the moisture to below 12% to obtain the fermented Chinese herbal medicine base material.

[0076] 6. Preparation of premix

[0077] Prepare 3% antiviral piglet premix by adding the following components per ton of compound feed:

[0078]

[0079] 7. Preparation of compound feed

[0080] Prepare the compound feed according to the following proportions based on the weight stage of the piglets:

[0081]

[0082] Attention should be paid when purchasing raw materials:

[0083] 1. Corn: Moisture < 14.0%, bulk density > 680 g / L, impurities < 2%, moldy grains < 1.5%, imperfect grains < 8% (including mildewed, insect-eaten, heat-damaged, broken, and diseased grains).

[0084] 2. Soybean meal: Moisture < 13.0%, crude protein > 43%, protein solubility 75 - 85%, urease activity < 0.3.

[0085] 3. Soybean oil: Moisture < 0.2%, acid value (KOH) < 2 mg / g, peroxide value < 0.25 g / 100 g, reliable source, with the inherent smell of soybean oil, clear and transparent.

[0086] 4. Fish meal: Crude protein > 64%, volatile basic nitrogen < 120 mg / 100 g, histamine ≤ 500 mg / kg, sensory smell is fishy, feels fluffy, has uniform fineness, no caking, no strange smell.

[0087] 5. Wheat bran: Moisture < 13.5%, fresh and consistent color, no fermentation, no strange smell, and the storage time cannot be too long.

[0088] Example 2

[0089] On the basis of Example 1, adjust the compatibility ratio of Chinese herbal medicines: Isatis indigotica 10.0%, mugwort leaf powder 5.0%, Poria cocos 5.0%, ginseng stem and leaf 10.0%, Astragalus membranaceus 8.0%, Sophora flavescens 3.0%, Atractylodes lancea 4.0%, Coptis chinensis 5.0%, honeysuckle vine 7.0%, glucose 1.5%, brown sugar 7.0%, corn flour 8.0%, soybean meal 7.0%, probiotic 0.3%.

[0090] The remaining steps are the same as those in Example 1.

[0091] Example 3

[0092] On the basis of Example 1, adjust the enzymatic hydrolysis reaction time: Keep warm for 6 hours for enzymatic hydrolysis reaction, and the remaining steps are the same as those in Example 1.

[0093] Example 4

[0094] On the basis of Example 1, adjust the fermentation time: Anaerobic fermentation for 7 - 10 days, and the remaining steps are the same as those in Example 1.

[0095] Example 5

[0096] On the basis of Example 1, adjust the drying temperature: use low-temperature drying at 65°C, and the remaining steps are the same as those in Example 1.

[0097] Effect verification:

[0098] (1) Resource utilization rate: In Examples 1-5, the utilization rates of chicken gizzard-membrane, chicken claw skin, and chicken blood all reached over 95%, which was significantly higher than 50%-60% of the traditional process.

[0099] (2) Feed digestibility: The enzymatic hydrolysis reaction increased the protein digestibility in the feed to over 90%, and reduced the ammonia concentration in the feces by 40%-50%.

[0100] (3) Antiviral function: For piglets using the premix of the present invention, the intestinal flora balance was significantly improved, the diarrhea rate was reduced by 60%, and the antibiotic usage was reduced by over 80%.

[0101] (4) Pork quality: After slaughter, the contents of vitamin C, vitamin E, and various amino acids in the pork were significantly increased, and the contents of trace elements such as selenium, zinc, and calcium were 1.2-2.5 times higher than those in ordinary pork.

[0102] Conclusion:

[0103] Through scientific formulation and innovative technology, the present invention significantly improves the utilization rate of poultry slaughter by-products, reduces environmental pollution, enhances the antiviral ability of piglets, improves the nutritional value of feed and pork quality, and provides an efficient and green solution for the healthy breeding of piglets.

[0104] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing a highly efficient, green, functional antiviral piglet premix, characterized in that: The following steps are involved: (1) Raw material pretreatment: fresh chicken gizzard lining and chicken feet skin are mixed in a ratio of 1:1, ground into a paste by a meat grinder, and mixed with chicken blood in a ratio of 1:1:1 to form a raw material mixture; (2) High temperature sterilization and aging: Add the raw material mixture of step (1) into a high temperature sterilization and aging tank, stir and sterilize for 30 minutes at 2.0-2.5 atmospheres and a temperature ≥100°C, cool to 50-55°C, add enzyme preparation, and keep warm for 8-10 hours to carry out enzymatic hydrolysis reaction to generate water-soluble polypeptides and free amino acids; (3) Chinese herbal medicine compatibility: Folium isatidis, wormwood leaf powder, Poria cocos, ginseng stems and leaves, Astragalus, Sophora flavescens, Atractylodes lancea, Coptis chinensis, Honeysuckle vine, glucose, brown sugar, cornmeal, soybean meal and probiotics are crushed by a 20-mesh grinder, and then mixed according to proportion to form a Chinese herbal medicine mixed raw material; (4) Mixed fermentation: add the enzymatic hydrolyzate of step (2) and the mixed raw material of Chinese herbal medicine of step (3) into a fermentation tank at a ratio of 1:1, control the moisture content to 40% and the temperature to 30° C., mix well and then perform anaerobic fermentation for 7-10 days; (5) Low-temperature drying: using sensor automatic control technology to reduce the moisture content of the high-moisture Chinese herbal mixture by low-temperature pasteurization, and drying the fermentation product at ≤75°C to a moisture content of ≤12% to obtain a fermented Chinese herbal base material; (6) Preparation of premix: Mix the fermented Chinese herbal base material with lysine, methionine, threonine, pig vitamins, ferrous sulfate, zinc oxide, hydroxymethionine iron, basic cupric chloride, zinc sulfate, hydroxymethionine zinc, manganese sulfate, sodium selenite, potassium iodide, cobalt chloride and choline in proportion to prepare a 3% functional antiviral piglet premix.

2. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 1, characterized in that: The production equipment of the high-temperature sterilization and maturation tank in step (2) comprises: a boiler (1), a steam cylinder (7), a tank body interlayer (11), and a water tank (17); a vertical water pump (15) is arranged on one side of the water tank (17); and a water outlet of the water tank (17) and a water inlet of the vertical water pump (15) are connected by welding a seamless steel pipe; the boiler (1) and the steam cylinder (7), the boiler (1) and the vertical water pump (15), and the steam cylinder (7) and the water tank (17) are all connected by a seamless steel pipe (22); and a steam exhaust valve (4) is arranged on the seamless steel pipe (22) connecting the boiler (1) and the steam cylinder (7); a water valve (13) is arranged on the seamless steel pipe (22) connecting the boiler (1) and the vertical water pump (15), and the steam cylinder (7) and the water tank (17); and the seamless steel pipe (22) between the boiler (1) and the vertical water pump (15) is connected by welding a seamless steel pipe (22). One end of the second steel pipe (22) is connected to the water inlet of the boiler (1), and a reverse water valve (5) is arranged on it. The steam cylinder (7) is connected to the tank body interlayer (11) through the third seamless steel pipe (23). The third seamless steel pipe (23) is branched, and the second exhaust valve (8) and the exhaust valve (9) are arranged at the branch points respectively. A shaft (19) is rotatably arranged in the tank body interlayer (11), and a plurality of stirring blades (18) are evenly distributed around the shaft (19). The shaft (19) and the stirring blades (18) are fixed by screws. A motor (12) for driving the shaft (19) to rotate is fixed on the other side of the tank body interlayer (11), and the motor (12) is connected to the shaft (19) through a reducer (6). The bottom of the tank body interlayer (11) is connected to the water tank (17) through the fourth seamless steel pipe (24), and a steam-water separator (16) is arranged on the fourth seamless steel pipe (24); The boiler (1) and the steam cylinder (7) are both provided with pressure gauges (2) on the top, the boiler (1) is provided with a safety valve (3) on the top, the vertical water pump (15) is provided with a water pump motor (14) on the top, the tank body interlayer (11) is provided in the tank body, and the tank body top is provided with a thermometer (10), a tank body exhaust valve (21), and a feed port (25), the thermometer (10) is used to observe the temperature in the tank body, and a discharge port (20) is provided on one side of the tank body, and the discharge port (20) is a flange with a diameter of 40 cm welded to the bottom of the tank body.

3. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 2, characterized in that: The preparation operation of the high temperature sterilization and maturation tank before the start of step (2) is as follows: Fill the water tank (17) with water; start the water pump motor (14) to add boiler water to a suitable position; heat the boiler water to 2.0-2.5 atmospheres; open the exhaust valve (4) to discharge the boiler water vapor to the sub-cylinder (7); open the exhaust valve (9) of the tank body interlayer (11) to discharge the high-temperature steam into the tank body interlayer (11); at this time, the temperature of the boiler (1), the temperature of the sub-cylinder (7) and the temperature of the tank body interlayer (11) are consistent, then turn on the switch of the motor (12) to make the motor (12) drive the shaft (19) to start rotating, and the stirring blade (18) in the tank body starts stirring operation, and then open the feed port (25) to perform the operation of step (2).

4. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 3, characterized in that: When the high temperature sterilization and maturation tank is subjected to high temperature sterilization and maturation in step (2), the following points should be noted: The motor (12) continues to rotate, and the temperature inside the tank is observed through the thermometer (10). When the temperature inside the tank reaches above 100° C., the tank is operated for another 30 minutes, the air inlet valve (9) is closed, and the tank exhaust valve (21) is opened to release the pressure in the tank interlayer (11). At this time, the material in the tank has formed a paste under the stirring of the stirring blade. When the pressure inside and outside the tank is consistent, the feed port (25) is opened, and the temperature and moisture in the tank interlayer (11) are observed through the thermometer (10). The total moisture content is adjusted to 70% with sterile water to form a fluid paste. When the material is cooled to a suitable temperature of 50° C., an enzyme preparation is added according to a proportion. Ten minutes after the motor (12) is started, the stirring blade (18) is stopped, and the material temperature is maintained between 50-55° C. for 8-10 hours. At this time, the microbial activity and enzymatic hydrolysis reaction reach their peak, and the macromolecular protein in the raw material is degraded into water-soluble polypeptides and free amino acids.

5. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 1, characterized in that: The mass percentages of the mixed Chinese herbal medicine raw materials in the step (3) are: 12.5% ​​of isatis indigotica leaf, 6.8% of wormwood leaf powder, 6.5% of poria cocos, 12.0% of ginseng stems and leaves, 9.5% of astragalus, 4.0% of sophora flavescens, 5.8% of atractylodes, 6.0% of coptis root, 8.5% of honeysuckle vine, 2.0% of glucose, 8.0% of brown sugar, 10.0% of cornmeal, 8.0% of soybean meal, and 0.4% of probiotics.

6. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 1, characterized in that: Before the mixed fermentation in step (4), the motor (12) needs to be started to rotate the stirring blades (18) in the tank body, and then the feed port (25) is opened to add the enzymatic hydrolyzate of step (2) and the Chinese herbal medicine mixed raw material of step (3) into the fermentation tank in a ratio of 1:

1. After the mixture is evenly mixed, the discharge port (20) is opened to discharge the materials and put them into a feed fermentation bag for anaerobic fermentation.

7. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 1, characterized in that: The formula of the 3% antiviral premix in the step (6) is as follows: per ton of compound feed, the following are added: 17,000 g of fermented Chinese herbal medicine, 4,500 g of lysine, 1,200 g of methionine, 800 g of threonine, 700 g of pig vitamins, 680 g of ferrous sulfate, 2,260 g of zinc oxide, 420 g of hydroxymethionine iron, 300 g of basic cupric chloride, 400 g of zinc sulfate, 400 g of hydroxymethionine zinc, 200 g of manganese sulfate, 40 g of sodium selenite, 50 g of potassium iodide, 50 g of cobalt chloride, and 1,000 g of choline, with a total addition amount of 30,000 g.

8. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 1, characterized in that: The enzyme preparation comprises one or more combinations of amylase, protease, cellulase, lipase, xylanase and galactosidase.

9. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 1, characterized in that: The premix is ​​suitable for piglets weighing 15kg to 45kg. The proportions of corn, soybean meal, bran, fish meal, cooked soybean, soybean oil, glucose, premix, calcium hydrogen phosphate, fine stone powder and salt in the compound feed are adjusted according to the weight stage of the piglets.

10. The method for preparing a highly efficient, green, functional antiviral piglet premix according to claim 9, characterized in that: The recommended proportions of the compound feed are: 15kg-25kg stage: corn 63.65%, soybean meal 15%, bran 3%, fish meal 2.0%, cooked soybean 9%, glucose 2.0%, premix 3.0%, calcium hydrogen phosphate 0.8%, fine stone powder 1.2%, salt 0.35%; 25kg-35kg stage: corn 67.15%, soybean meal 24.0%, fish meal 1.0%, soybean oil 1.5%, glucose 1.0%, premix 3.0%, calcium hydrogen phosphate 0.8%, fine stone powder 1.2%, salt 0.35%; 35kg-45kg stage: 66.65% corn, 25% soybean meal, 3% bran, 3.0% premix, 0.8% calcium hydrogen phosphate, 1.2% fine stone powder, and 0.35% salt.

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