Oxygen-enriched hematopoietic nutritional feed and preparation method thereof

Abstract

The present invention discloses an oxygen-enriched hematopoietic nutritional feed and a preparation method thereof, and relates to the technical field of oxygen-enriched hematopoietic nutritional feeds, the oxygen-enriched hematopoietic nutritional feed comprises 5-15 parts of an oxygen carrier, 2-8 parts of compound vitamins, 1-6 parts of compound trace elements, 0.5-3 parts of antibacterial peptides, 1-4 parts of dextriferron, 0.1-1 part of an antioxidant, 0.5-2 parts of probiotics and 2-5 parts of lysine; screening and primarily treating the oxygen carrier by adopting a pretreatment method to obtain a high-efficiency oxygen carrier; the efficient oxygen carrier, the compound vitamins, the compound trace elements, the antibacterial peptide, the dextriferron, the antioxidant, the probiotics and the lysine are subjected to wrapping treatment by adopting a microcapsule encapsulation technology to form microencapsulated active ingredients; mixing the microencapsulated active ingredients with the basic feed raw materials according to a specific proportion, and obtaining a premix by using high-precision weighing equipment and a mixing process; and processing and forming the premix by adopting a granulation or extrusion forming process, and adjusting temperature, humidity and pressure parameters to obtain the granular feed.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen-enriched hematopoietic nutritious feed, in particular to an oxygen-enriched hematopoietic nutritious feed and a preparation method thereof. Background Art

[0002] Oxygen-enriched hematopoietic nutrient feed is a special feed designed to promote oxygen transport in animals, enhance blood production and improve overall health.

[0003] In the field of oxygen-rich hematopoietic nutritional feed, traditional feed lacks effective oxygen carriers, resulting in low oxygen transport efficiency in animals, affecting blood circulation and metabolism, and existing feed formulas fail to provide comprehensive and balanced nutritional support, especially for promoting blood production and immune system health. At the same time, traditional granulation or extrusion molding processes cause the loss or denaturation of nutrients in the feed, affecting the nutritional value of the final product. Summary of the invention

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the present invention provides an oxygen-rich hematopoietic nutritional feed to solve the problem that traditional feed lacks effective oxygen carriers, resulting in low oxygen transport efficiency in animals, affecting blood circulation and metabolism, and existing feed formulas fail to provide comprehensive and balanced nutritional support, especially for the lack of ingredients to promote blood production and immune system health.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: In a first aspect, the present invention provides an oxygen-enriched hematopoietic nutrient feed, comprising: 5-15 parts of oxygen carriers, 2-8 parts of complex vitamins, 1-6 parts of complex trace elements, 0.5-3 parts of antimicrobial peptides, 1-4 parts of salivary anemia, 0.1-1 parts of antioxidants, 0.5-2 parts of probiotics and 2-5 parts of lysine.

[0007] In a second aspect, the present invention provides a method for preparing an oxygen-enriched hematopoietic nutrient feed, comprising: The oxygen carrier is screened and preliminarily treated by a pretreatment method to obtain a high-efficiency oxygen carrier; Microencapsulation technology is used to encapsulate high-efficiency oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, salivary blood, antioxidants, probiotics and lysine to form microencapsulated active ingredients; The microencapsulated active ingredient is mixed with the basic feed raw material in a specific ratio, using high-precision weighing equipment and a mixing process to obtain a premix; The premix is ​​processed and shaped by granulation or extrusion, and the temperature, humidity and pressure parameters are adjusted to obtain granular feed; Gentle drying to remove excess water from pelleted feed and cooling; Based on the cooled feed, a sealed moisture-proof packaging method is adopted to package it to obtain a final finished feed.

[0008] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, the pretreatment method is used to screen and preliminarily treat the oxygen carrier to obtain a high-efficiency oxygen carrier, and the specific steps are: Catalase is selected as the basic material of oxygen carrier and is subjected to ultrasonic treatment; Calculate and optimize oxygen release efficiency during treatment; After the above treatment, a highly efficient oxygen carrier is obtained.

[0009] As a preferred embodiment of the oxygen-rich hematopoietic nutritional feed of the present invention, the microencapsulation technology is used to encapsulate the high-efficiency oxygen carrier, complex vitamins, complex trace elements, antimicrobial peptides, hematopoietic hormone, antioxidants, probiotics and lysine to form microencapsulated active ingredients, and the specific steps are as follows: First, a solvent system suitable for microcapsule formation is selected; Using ethanol and deionized water as the solvent basis, calculate the specific ratio; High-efficiency oxygen carrier, complex vitamins, complex trace elements, antimicrobial peptides, salivary hematin, antioxidants, probiotics and lysine are added to the above solvent system in a specific proportion and stirred at a high speed using a high shear mixer. Stir evenly; Calculate the energy input during dispersion; Slowly drop the dispersed solution into the oil phase containing the stabilizer while maintaining high-speed stirring; After emulsification, the microencapsulated active ingredients are separated by spray drying technology; During the drying process, the inlet air temperature, exhaust air temperature and feed rate are controlled.

[0010] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, the microencapsulated active ingredient is mixed with the basic feed raw material in a specific ratio, and a high-precision weighing device and a mixing process are used to obtain a premix, and the specific steps are as follows: Use a high-precision electronic balance to accurately weigh microencapsulated active ingredients and basic feed ingredients; The microencapsulated active ingredients include high-efficiency oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, salivary hormones, antioxidants, probiotics and lysine; The basic feed raw materials include grain meal and soybean meal; During the weighing process, determine the required proportion of each content; The weighed microencapsulated active ingredients were evenly sprinkled on the basic feed ingredients and preliminarily mixed using a low-speed stirrer.

[0011] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, wherein: during the preliminary mixing process, the mixing time is calculated; After the initial mixing, the materials are transferred to a high-speed mixer for deep mixing at a higher speed, and the mixing time is calculated; After preliminary mixing and deep mixing, high-quality premix is ​​obtained.

[0012] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, the premix is ​​processed and shaped by granulation or extrusion molding process, and the temperature, humidity and pressure parameters are adjusted to obtain granular feed. The specific steps are as follows: Before feeding the premix into the granulator, preheat it to make the material reach the appropriate processing temperature; The preheated premix is ​​fed into a granulator and formed under set temperature, relative humidity and pressure conditions; Calculate the relationship between key parameters during the molding process; The formed pelletized feed immediately enters the cooling channel, is quickly cooled to room temperature at a specific cooling rate, and pelletized feed is obtained.

[0013] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, the gentle drying method is used to remove excess water contained in the granular feed and cool it, and the specific steps are as follows: Before starting drying, first conduct a preliminary moisture measurement on the pelleted feed after forming; Based on the preliminary humidity determination results, the low-temperature vacuum drying method was chosen; During the drying process, the temperature, relative humidity and drying time must satisfy the following formula; Spread the granular feed evenly on the drying tray and put it into a low-temperature vacuum dryer or fluidized bed dryer.

[0014] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, the air inlet temperature, the air outlet temperature and the air flow rate need to be controlled after being placed in a low-temperature vacuum dryer or a fluidized bed dryer; After drying is completed, the pelleted feed is quickly transferred to the cooling area and quickly cooled to room temperature at a specific cooling rate.

[0015] As a preferred embodiment of the oxygen-enriched hematopoietic nutrient feed of the present invention, the cooled feed is packaged by a sealed moisture-proof packaging method to obtain a final finished feed, and the specific steps are as follows: According to the characteristics and storage requirements of the feed, choose packaging materials with excellent moisture-proof properties; The packaging material includes a film of PET / PE / EVOH structure; The oxygen transmission rate (OTR) of the packaging material should be less than 2 cm³ / m²·24h·atm; Water vapor transmission rate WVTR should be less than 0.5 g / m²·24h; Use a vacuum packaging machine to package the cooled feed; After vacuum packaging is completed, the packaging bag is immediately heat-sealed to obtain the final finished feed.

[0016] The beneficial effects of the present invention are as follows: the feed contains oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, hemoglobin, antioxidants, probiotics and lysine. The combined effect of the ingredients ensures that animals obtain comprehensive nutritional support, enhances immunity and overall health, improves disease resistance, reduces the incidence of diseases, and promotes blood production. The high-efficiency oxygen carrier and other active ingredients are packaged using microencapsulation technology to achieve the formation of microencapsulated active ingredients. The microencapsulated active ingredients are separated by spray drying technology to ensure their stability and bioavailability in subsequent processing. The microencapsulated active ingredients are mixed with basic feed raw materials in a specific proportion and made into granular feed by granulation or extrusion molding process, which is convenient for storage and feeding. The particles are prevented from deforming or sticking by rapid cooling to room temperature, thereby maintaining the structural integrity and nutritional value of the feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 This is a flow chart of the method for preparing the oxygen-enriched hematopoietic nutrient feed in Example 1. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Embodiment 1 is the first embodiment of the present invention, which provides an oxygen-enriched hematopoietic nutrient feed, including: 5-15 parts of oxygen carriers, 2-8 parts of complex vitamins, 1-6 parts of complex trace elements, 0.5-3 parts of antimicrobial peptides, 1-4 parts of salivary anemia, 0.1-1 parts of antioxidants, 0.5-2 parts of probiotics and 2-5 parts of lysine.

[0023] It should be noted that the ratio of ingredients in this embodiment is the best ratio obtained through multiple experimental optimizations, aiming to ensure that the synergistic effect of each ingredient in the animal body is maximized. The selection and dosage of oxygen carriers are directly related to the oxygen-enriched effect of the feed, while complex vitamins and trace elements provide comprehensive nutritional support, enhance the immunity and overall health of the animal, and the addition of antimicrobial peptides and angiotensin helps to improve disease resistance and promote blood production. Antioxidants and probiotics further protect cells from oxidative damage and improve intestinal microbial communities. Lysine, as an essential amino acid, supplements the protein synthesis basis required for animal growth. The precise ratio not only improves the overall nutritional value of the feed, but also significantly enhances its function of promoting blood circulation and metabolism, thereby providing animals with a better feeding solution.

[0024] Example 2, reference Figure 1 , which is the second embodiment of the present invention, provides a method for preparing an oxygen-enriched hematopoietic nutrient feed, comprising the following steps: S1. Using a pretreatment method to screen and preliminarily treat oxygen carriers to obtain efficient oxygen carriers; Furthermore, catalase was selected as the basic material of the oxygen carrier and subjected to ultrasonic treatment; The oxygen release efficiency is calculated and optimized during the treatment process, and the expression is: ; in, For energy efficiency, is the attenuation coefficient, For processing time, is the ultrasonic power; After the above treatment, a highly efficient oxygen carrier is obtained; It should be noted that ultrasonic treatment of catalase not only increases its surface area and solubility, but also significantly enhances the oxygen release efficiency. The treatment method can ensure the continuous and stable release of oxygen in the animal body, thereby effectively promoting blood circulation and metabolism. In addition, the energy efficiency calculation formula in this step helps optimize the processing parameters, making the entire process more efficient, reducing energy consumption, and improving the performance of the final feed product.

[0025] S2. Use microencapsulation technology to encapsulate high-efficiency oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, salivary blood, antioxidants, probiotics and lysine to form microencapsulated active ingredients; Furthermore, a solvent system suitable for microcapsule formation is first selected; Taking ethanol and deionized water as the solvent basis, the specific ratio is calculated as follows: ; in, is the solvent ratio, is the volume of ethanol, is the volume of deionized water, , , are the empirical coefficients adjusted according to experimental data; High-efficiency oxygen carrier, complex vitamins, complex trace elements, antimicrobial peptides, salivary hematin, antioxidants, probiotics and lysine are added to the above solvent system in a specific proportion and stirred at a high speed using a high shear mixer. Stir evenly; Calculate the energy input during the dispersion process, the expression is: ; in, To disperse the energy, is the dispersion coefficient, is the mixer speed, is the mass of the mixed material; Slowly drop the dispersed solution into the oil phase containing the stabilizer while maintaining high-speed stirring; After emulsification, the microencapsulated active ingredients are separated by spray drying technology; During the drying process, the inlet air temperature, exhaust air temperature and feed rate are controlled, and the expression is: ; in, is the drying efficiency, is the inlet air temperature, is the exhaust air temperature, is the feed rate; It should be noted that microencapsulation technology not only protects the active ingredients from the influence of the external environment, but also ensures that these ingredients can be absorbed and utilized by the body at the appropriate time. The precise calculation of the ratio of ethanol and deionized water and the optimization of dispersion energy ensure that the ingredients are evenly distributed and stably present, which not only improves the effectiveness and stability of the feed, but also extends its shelf life, keeping it in the best condition during storage and transportation.

[0026] S3, mixing the microencapsulated active ingredient with the basic feed raw material in a specific ratio, using a high-precision weighing device and a mixing process to obtain a premix; Furthermore, a high-precision electronic balance is used to accurately weigh the microencapsulated active ingredients and basic feed ingredients; Microencapsulated active ingredients include highly efficient oxygen carriers, multivitamins, multi-trace elements, antimicrobial peptides, salivary hematin, antioxidants, probiotics and lysine; Basic feed ingredients include grain meal and soybean meal; During the weighing process, determine the required ratio of each content, the expression is: ; in, is the ratio of active ingredient to basic feed raw material, is the regulating factor, is a constant term, is the proportional adjustment factor; The weighed microencapsulated active ingredients are evenly sprinkled on the basic feed raw materials and preliminarily mixed using a low-speed stirrer; During the initial mixing process, the mixing time is calculated as follows: ; in, is the uniformity of initial mixing, is the mixing coefficient, is the stirrer speed, is the mixing time; After the initial mixing, the materials are transferred to a high-speed mixer for deep mixing at a higher speed. The mixing time is calculated as: ; in, is the uniformity of deep mixing, is the depth mixing coefficient, is the speed of high-speed mixer, is the mixing time, is the standard deviation of the speed difference; After preliminary mixing and deep mixing, high-quality premix is ​​obtained; It should be noted that the application of high-precision weighing equipment and mixing technology ensures the precise ratio of each ingredient, avoiding poor effects or nutritional imbalance caused by uneven ingredients. The dual mixing process of preliminary mixing and deep mixing further ensures the uniformity of the feed, so that each portion of feed can provide consistent nutritional value. The process not only improves the quality of the feed, but also lays a solid foundation for subsequent granulation or extrusion molding.

[0027] S4, processing the premix by granulation or extrusion molding process, adjusting the temperature, humidity and pressure parameters to obtain granular feed; Furthermore, before the premix is ​​fed into the granulator, it is preheated so that the material reaches a suitable processing temperature; The preheating processing temperature must satisfy the expression: ; in, is the preheating temperature, is the latent heat of evaporation of water, is the specific heat capacity, is the target relative humidity, is the initial relative humidity; The preheated premix is ​​fed into a granulator and formed under set temperature, relative humidity and pressure conditions; During the molding process, the relationship between key parameters is calculated as follows: ; in, is the molding quality index, is the forming coefficient, To set the temperature, To set the relative humidity, To set the pressure; The pelletized feed immediately enters the cooling channel after being formed, and is quickly cooled to room temperature at a specific cooling rate to obtain pelletized feed; It should be noted that the granulation or extrusion molding process ensures the uniform shape and size of feed particles by precisely controlling key parameters such as temperature, humidity and pressure, thereby improving the palatability and digestibility of the feed. The preheating step helps to improve the plasticity of the material, making the molding process smoother, which not only improves the appearance quality of the feed, but also ensures the integrity of its internal structure, thereby extending the shelf life of the feed.

[0028] S5, removing excess water from the pelletized feed by gentle drying method and cooling; Furthermore, before starting drying, a preliminary moisture measurement is first performed on the pelleted feed after forming; Based on the preliminary humidity determination results, the low-temperature vacuum drying method was chosen; During the drying process, the temperature, relative humidity and drying time must satisfy the following formula: ; in, is the drying efficiency index, is the drying coefficient, λλ is the humidity influence factor, is the drying temperature, is the dry relative humidity, is the drying time; Spread the pelletized feed evenly on the drying tray and put it into a low-temperature vacuum dryer or fluidized bed dryer; After being placed in a low-temperature vacuum dryer or fluidized bed dryer, the inlet air temperature, exhaust air temperature and air flow rate need to be controlled. The expression is: ; in, is the air flow rate, is the thermal conductivity coefficient, is the inlet air temperature, is the exhaust air temperature, is the air density, is the specific heat capacity of air; After drying is completed, the pelleted feed is quickly transferred to the cooling area and quickly cooled to room temperature at a specific cooling rate; It should be noted that the gentle drying method can effectively remove excess moisture without destroying the nutritional components of the feed, preventing microbial growth and feed deterioration. By controlling the inlet air temperature, exhaust air temperature and air flow, the efficiency and uniformity of the drying process can be ensured. The rapid cooling step further locks in the nutrients in the feed, maintains its freshness and taste, and thus improves the overall quality of the feed.

[0029] S6. Packing the cooled feed by a sealed moisture-proof packaging method to obtain a final finished feed; Furthermore, according to the characteristics and storage requirements of the feed, packaging materials with excellent moisture-proof properties are selected; Packaging materials include films of PET / PE / EVOH structure; The oxygen transmission rate (OTR) of packaging materials should be less than 2 cm³ / m²·24h·atm; Water vapor transmission rate WVTR should be less than 0.5 g / m²·24h; Use a vacuum packaging machine to package the cooled feed; After vacuum packaging is completed, the packaging bag is immediately heat-sealed to obtain the final finished feed; It should be noted that the use of PET / PE / EVOH structural film with excellent moisture-proof properties for sealed moisture-proof packaging can not only effectively prevent the invasion of external moisture and oxygen, but also extend the shelf life of feed. The application of vacuum packaging machines further reduces the oxygen content in the package, inhibits the reproduction of microorganisms, and ensures the freshness and safety of the feed. The packaging method not only improves the storage stability of the feed, but also facilitates transportation and sales, meeting the market demand for high-quality feed.

[0030] In summary, the present invention ensures that animals obtain comprehensive nutritional support, enhance immunity and overall health status, improve disease resistance, reduce the incidence of diseases, and promote blood production through the combined action of the ingredients of oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, angiotensin, antioxidants, probiotics and lysine contained in the feed. The microencapsulated technology is used to encapsulate the high-efficiency oxygen carriers and other active ingredients to achieve the formation of microencapsulated active ingredients. The microencapsulated active ingredients are separated by spray drying technology to ensure their stability and bioavailability in subsequent processing. The microencapsulated active ingredients are mixed with basic feed raw materials in a specific ratio and made into granular feed by granulation or extrusion molding process, which is convenient for storage and feeding. The particles are prevented from deformation or adhesion by rapid cooling to room temperature, thereby maintaining the structural integrity and nutritional value of the feed.

[0031] It should be noted that 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An oxygen-enriched hematopoietic nutrient feed, characterized in that: include: 5-15 parts of oxygen carriers, 2-8 parts of complex vitamins, 1-6 parts of complex trace elements, 0.5-3 parts of antimicrobial peptides, 1-4 parts of salivary anemia, 0.1-1 parts of antioxidants, 0.5-2 parts of probiotics and 2-5 parts of lysine.

2. A method for preparing an oxygen-enriched hematopoietic nutritious feed, the oxygen-enriched hematopoietic nutritious feed as claimed in claim 1, characterized in that: The preparation method thereof comprises: The oxygen carrier is screened and preliminarily treated by a pretreatment method to obtain a high-efficiency oxygen carrier; Microencapsulation technology is used to encapsulate high-efficiency oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, salivary blood, antioxidants, probiotics and lysine to form microencapsulated active ingredients; The microencapsulated active ingredient is mixed with the basic feed raw material in a specific ratio, using high-precision weighing equipment and a mixing process to obtain a premix; The premix is ​​processed and shaped by granulation or extrusion, and the temperature, humidity and pressure parameters are adjusted to obtain granular feed; Gentle drying to remove excess water from pelleted feed and cooling; Based on the cooled feed, a sealed moisture-proof packaging method is adopted to package it to obtain a final finished feed.

3. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 2, characterized in that: The pretreatment method is used to screen and preliminarily treat the oxygen carrier to obtain a high-efficiency oxygen carrier, and the specific steps are: Catalase is selected as the basic material of oxygen carrier and is subjected to ultrasonic treatment; Calculate and optimize oxygen release efficiency during treatment; After the above treatment, a highly efficient oxygen carrier is obtained.

4. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 3, characterized in that: The microencapsulation technology is used to encapsulate the high-efficiency oxygen carrier, complex vitamins, complex trace elements, antimicrobial peptides, anemia, antioxidants, probiotics and lysine to form microencapsulated active ingredients, and the specific steps are as follows: First, a solvent system suitable for microcapsule formation is selected; Using ethanol and deionized water as the solvent basis, calculate the specific ratio; High-efficiency oxygen carrier, complex vitamins, complex trace elements, antimicrobial peptides, salivary hematin, antioxidants, probiotics and lysine are added to the above solvent system in a specific proportion and stirred at a high speed using a high shear mixer. Stir evenly; Calculate the energy input during dispersion; Slowly drop the dispersed solution into the oil phase containing the stabilizer while maintaining high-speed stirring; After emulsification, the microencapsulated active ingredients are separated by spray drying technology; During the drying process, the inlet air temperature, exhaust air temperature and feed rate are controlled.

5. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 4, characterized in that: The microencapsulated active ingredient is mixed with the basic feed raw material in a specific ratio, and a high-precision weighing device and a mixing process are used to obtain a premix, and the specific steps are as follows: Use a high-precision electronic balance to accurately weigh microencapsulated active ingredients and basic feed ingredients; The microencapsulated active ingredients include high-efficiency oxygen carriers, complex vitamins, complex trace elements, antimicrobial peptides, salivary hormones, antioxidants, probiotics and lysine; The basic feed raw materials include grain meal and soybean meal; During the weighing process, determine the required proportion of each content; The weighed microencapsulated active ingredients were evenly sprinkled on the basic feed ingredients and preliminarily mixed using a low-speed stirrer.

6. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 5, characterized in that: During the preliminary mixing process, the mixing time is calculated; After the initial mixing, the materials are transferred to a high-speed mixer for deep mixing at a higher speed, and the mixing time is calculated; After preliminary mixing and deep mixing, high-quality premix is ​​obtained.

7. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 6, characterized in that: The premix is ​​processed and shaped by a granulation or extrusion process, and the temperature, humidity and pressure parameters are adjusted to obtain a granular feed. The specific steps are: Before feeding the premix into the granulator, preheat it to make the material reach the appropriate processing temperature; The preheated premix is ​​fed into a granulator and formed under set temperature, relative humidity and pressure conditions; Calculate the relationship between key parameters during the molding process; The formed pelletized feed immediately enters the cooling channel, is quickly cooled to room temperature at a specific cooling rate, and pelletized feed is obtained.

8. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 7, characterized in that: The gentle drying method is used to remove excess water contained in the pelleted feed and cool it, and the specific steps are as follows: Before starting drying, first conduct a preliminary moisture measurement on the pelleted feed after forming; Based on the preliminary humidity determination results, the low-temperature vacuum drying method was chosen; Spread the granular feed evenly on the drying tray and put it into a low-temperature vacuum dryer or fluidized bed dryer.

9. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 8, characterized in that: After being placed in the low-temperature vacuum dryer or fluidized bed dryer, the inlet air temperature, exhaust air temperature and air flow rate need to be controlled; After drying is completed, the pelleted feed is quickly transferred to the cooling area and quickly cooled to room temperature at a specific cooling rate.

10. The method for preparing the oxygen-enriched hematopoietic nutrient feed according to claim 9, characterized in that: The cooled feed is packaged using a sealed moisture-proof packaging method to obtain a final finished feed, and the specific steps are: According to the characteristics and storage requirements of the feed, choose packaging materials with excellent moisture-proof properties; The packaging material includes a film of PET / PE / EVOH structure; The oxygen transmission rate (OTR) of the packaging material should be less than 2 cm³ / m²·24h·atm; Water vapor transmission rate WVTR should be less than 0.5 g / m²·24h; Use a vacuum packaging machine to package the cooled feed; After vacuum packaging is completed, the packaging bag is immediately heat-sealed to obtain the final finished feed.

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