Synergistic, cost-reducing and health-promoting feed composition for laying hens and application of synergistic, cost-reducing and health-promoting feed composition

Abstract

The invention relates to the technical field of poultry feed, and discloses a feed composition for improving effects, reducing cost and promoting health of laying hens and application of the feed composition. Comprising 35-45 parts of natural zeolite powder, 25-35 parts of medical stone micro powder, 12-18 parts of iron tourmaline superfine powder, 8-12 parts of germanium-containing rare earth ore powder, 1.5-3.0 parts of anhydrous citric acid micro powder, 4-6 parts of natural seaweed mineral powder and a trace amount of deionized water. The preparation method comprises the following steps: performing high-temperature roasting pretreatment on the zeolite and the medical stone; adding other components, spraying a trace amount of water into a closed vibration mill, and carrying out low-temperature mechanochemical reaction to generate an active complex in situ; and finally, carrying out surface coating by utilizing seaweed meal. According to the invention, the bioavailability of mineral elements is obviously improved by utilizing an electric field-assisted solid-phase acidolysis technology. The composition can effectively increase the laying rate, reduce the feed-egg ratio and improve the eggshell quality, has good storage stability and is suitable for preparation of laying hen feed.

Description

Technical Field

[0001] This invention relates to the field of poultry feed technology, specifically to a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, and its application. Background Technology

[0002] In the egg-laying hen farming industry, mineral elements are crucial for maintaining poultry growth and metabolism, as well as eggshell formation. However, commonly used natural mineral feed ingredients typically have relatively stable crystal structures, resulting in low dissolution rates and low bioavailability of key metals such as calcium, iron, and zinc in the poultry digestive tract. This not only leads to a significant waste of mineral nutrients excreted in feces but also necessitates increased feed intake to meet nutritional requirements, thereby increasing the feed conversion ratio and raising farming costs.

[0003] Furthermore, during high-intensity production processes, laying hens often face significant metabolic stress, leading to problems such as decreased reproductive system activity and a shorter peak egg-laying period. Current feed technologies often lack effective means to regulate the microcirculation and cellular metabolic functions of poultry, causing laying hens' physiological functions to fail to maintain optimal levels. This results in reduced eggshell density, higher breakage rates, and an increase in soft-shelled eggs, directly impacting economic benefits.

[0004] On the other hand, although some technologies attempt to activate mineral raw materials through acidification to improve absorption rates, acid-activated mineral products typically exhibit strong hygroscopicity. In the absence of effective surface protection technologies, these products readily absorb environmental moisture during storage and transportation, leading to moisture absorption, clumping, and even chemical deactivation, severely impacting the physicochemical stability and actual performance of the finished feed product. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, and its application. This solves the problems of low bioavailability of mineral elements, high breeding costs, and difficulty in simultaneously achieving production performance and poultry gut health in existing laying hen feeds.

[0006] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, comprising the following technical solution and made from raw materials comprising the following parts by weight: The mixture contains 35-45 parts natural zeolite powder, 25-35 parts maifanite micro powder, 12-18 parts ferro-tourmaline ultrafine powder, 8-12 parts germanium-containing rare earth ore powder, 1.5-3.0 parts anhydrous citric acid micro powder, 4-6 parts natural seaweed mineral powder, and deionized water. The amount of deionized water added is 0.6%-1.2% of the total weight of the natural zeolite powder, maifanite micro powder, ferro-tourmaline ultrafine powder, germanium-containing rare earth ore powder, and anhydrous citric acid micro powder.

[0007] By employing the above technical solution, utilizing natural zeolite and maifanite as mineral carriers, and ferroelectric tourmaline as a piezoelectric functional component, combined with germanium-containing rare earth ores and organic acid ligands, a low-water-content solid-phase mechanochemical reaction system was constructed. Through specific raw material formulation and treatment, this composition exhibits synergistic and health-promoting effects during feed use. Its specific mechanism of action and beneficial effects are as follows: Lattice energy reduces solid-phase complexation reactions: During the preparation and use of ferro-tourmaline ultrafine powder, mechanical friction or thermal excitation generates weak currents and electrostatic fields. This electric field acts on the aluminosilicate framework of natural zeolite powder and maifanite micro-powder, causing lattice distortion and reducing the bond energy between metal cations and lattice oxygen. Trace amounts of deionized water added to the system form a discontinuous water film on the particle surface, providing a proton dissociation environment for anhydrous citric acid. Under the assistance of the electric field, the dissociated hydrogen ions undergo a displacement reaction with metal oxides such as calcium, iron, zinc, and manganese on the mineral surface, and the generated metal ions then combine with citrate ions. This process generates a highly soluble citrate-metal complex layer in situ on the mineral particle surface. This complex structure dissolves at a higher rate in the digestive tract of poultry than the natural mineral, improving the bioavailability of mineral elements.

[0008] Synergistic metabolic regulation: Germanium-containing rare earth ore powder introduces rare earth elements and trace amounts of germanium. Rare earth ions can regulate the permeability of ion channels in cell membranes, assisting in the transmembrane transport of nutrients; germanium participates in redox reactions in the body. Together, they act on the body's metabolic system, helping to prolong the peak egg-laying period and promote the deposition of calcium carbonate in the shell glands, thus improving eggshell density.

[0009] Far-infrared thermal effect: Ferro-tourmaline ultrafine powder has pyroelectric properties. After entering the digestive tract, it is excited by the body temperature of poultry and emits far-infrared rays with a wavelength of 6-14μm. This wavelength is close to the vibration frequency of biological water molecules, producing a resonant thermal effect, promoting blood circulation in the intestinal mucosa and around the oviduct, which helps maintain the function of the reproductive system and enhance stress resistance.

[0010] Surface physical modification and pH buffering: Natural seaweed mineral powder utilizes its high viscosity and film-forming properties to physically coat the surface of activated mineral micropowder. This coating layer isolates external moisture and prevents the internal citric acid complex from absorbing moisture. Simultaneously, the seaweed mineral powder absorbs water and swells in the intestines, increasing the viscosity of the digesta, slowing the rate at which feed passes through the intestines, and prolonging the absorption time of nutrients.

[0011] Preferably, the raw materials are in the following proportions by weight: 40 parts natural zeolite powder, 30 parts maifanite micro powder, 15 parts ferroelectric ultrafine powder, 10 parts germanium-containing rare earth ore powder, 2.2 parts anhydrous citric acid micro powder, 5 parts natural seaweed mineral powder, and deionized water; the amount of deionized water added is 0.9% of the total weight of natural zeolite powder, maifanite micro powder, ferroelectric ultrafine powder, germanium-containing rare earth ore powder, and anhydrous citric acid micro powder.

[0012] By adopting the above technical solution, this formulation achieves stoichiometric equilibrium between the specific surface area of ​​the mineral matrix and the molar amount of acidic ligands. Controlling the amount of deionized water at 0.9% ensures the formation of a suitable monolayer or multilayer adsorbed water film, guaranteeing the connectivity of proton transport channels while preventing material agglomeration or clumping due to excessive water content, thus ensuring the reaction occurs only at the particle interface.

[0013] Preferably, the particle size specifications of the raw materials are as follows: natural zeolite powder with a particle size of 200-400 mesh, maifanite micro powder with a particle size of 200-400 mesh, ferro-tourmaline ultrafine powder with a particle size of 600-1000 mesh, germanium-containing rare earth ore powder with a particle size of 400-600 mesh, and anhydrous citric acid micro powder with a particle size of 80-120 mesh.

[0014] By employing the above technical solution, a dense packing structure is constructed using the filling effect of raw materials with different particle sizes. Smaller-sized tourmaline particles (600-1000 mesh) adhere to the surfaces of larger-sized zeolite and maifanite particles (200-400 mesh), shortening the distance over which the electric field acts. Citric acid micropowder of suitable particle size is dispersed between the mineral particles, ensuring the uniformity of the acidolysis reaction at the microscale and avoiding excessively high local acid concentrations.

[0015] Preferably, the 1% aqueous solution of the feed composition for enhancing efficiency, reducing costs, and promoting health in laying hens has a pH value of 6.5-7.1, and the emissivity of the feed composition for enhancing efficiency, reducing costs, and promoting health in laying hens to far-infrared rays with a wavelength of 6-14μm is ≥0.85 at a temperature of 38-42℃.

[0016] By adopting the above technical solution, the pH range indicates that the free citric acid in the raw materials has fully participated in the reaction and been converted into neutral or weakly acidic salt complexes, eliminating the potential for irritation to the digestive tract. The high infrared emissivity at temperatures close to poultry body temperature (38-42℃) ensures that the feed can continuously exert a biothermal effect in the body, optimizing the intestinal microenvironment.

[0017] A preferred method for preparing a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health includes the following steps: mixing natural zeolite powder and maifanite micro powder evenly, heating and calcining, and cooling to obtain a pretreated mineral matrix; mixing the pretreated mineral matrix with ferro-tourmaline ultrafine powder, germanium-containing rare earth ore powder, and anhydrous citric acid micro powder to obtain a mixture; feeding the mixture into a closed eccentric vibrating mill, adding grinding media, and turning on circulating water cooling; simultaneously vibrating and grinding while spraying deionized water into the mill chamber through atomizing nozzles to control the material temperature within the mill chamber and perform reaction treatment to obtain activated composite micro powder; transferring the activated composite micro powder to a mixer, adding natural seaweed mineral powder for mixing, and sieving to obtain a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health.

[0018] By employing the above technical solution, this preparation method utilizes the coupling effect of mechanochemistry and electric field assistance to achieve the activation of mineral nutrients in a solid-phase system with low water content. The specific reaction principle and process are as follows: Thermal activation pretreatment: High-temperature calcination removes adsorbed water and volatile organic compounds from the pores of natural zeolite and maifanite, increasing porosity and specific surface area. The heat treatment induces thermal stress and microcracks in the mineral lattice, increasing the internal energy of the matrix and reducing the activation energy required for subsequent chemical reactions.

[0019] The coupled reaction of mechanics, electricity, and chemistry is the key step in this method. Under the high-frequency impact and shearing action of a closed vibratory mill, ferroelectric tourmaline generates a piezoelectric field. Atomized trace amounts of water spread on the particle surface. The reaction process consists of three stages: Stage 1 (proton release): Anhydrous citric acid, under the influence of electric field polarization in the microscopic water film, accelerates the dissociation of hydrogen ions; Stage 2 (lattice disruption): Hydrogen ions disrupt the metal-oxygen bonds on the mineral surface, causing metal cations to escape the lattice; Stage 3 (in-situ complexation): The released metal cations combine with citrate ions to form a citrate-metal complex. This method avoids the large wastewater discharge and drying energy consumption associated with liquid-phase reactions, achieving highly efficient solid-phase surface modification.

[0020] Surface stabilization treatment: Utilizing the film-forming properties of natural seaweed mineral powder, it is physically mixed and coated onto the outer layer of activated micro-powder with high surface energy. This step blocks the contact between the active ingredients and environmental moisture, prevents the product from absorbing moisture and clumping, and ensures the storage stability of the finished product.

[0021] Preferably, the heating and roasting process parameters are as follows: the heating rate is controlled at 5-10℃ / min, the temperature is heated to 160-180℃, and the temperature is kept constant for 90-120min; the cooling is natural cooling to 20-30℃.

[0022] By employing the above technical solutions, controlling the heating rate and maximum temperature prevents high-temperature collapse or sintering pore blockage of the mineral framework. Natural cooling preserves some of the lattice defects generated by heat treatment; these defect sites are active centers for subsequent solid-state chemical reactions.

[0023] Preferably, the inner lining material of the closed eccentric vibratory mill is high wear-resistant polyurethane or alumina ceramic; the grinding media is zirconia ceramic balls, which are made by mixing 6mm and 3mm diameter balls in a mass ratio of 1:2; the mass ratio of the mixture to the grinding media is 1:8-1:10.

[0024] By adopting the above technical solution, the non-metallic liner and ceramic media prevent the introduction of exogenous iron impurities. The mixed gradation of large and small spheres forms a dense grinding system in the grinding cavity. The large spheres provide impact crushing force, while the small spheres provide grinding shear force, increasing the collision frequency and effective contact area between material particles and improving the conversion efficiency of mechanical energy to chemical energy.

[0025] Preferably, the process parameters for the reaction treatment are as follows: the circulating water cooling temperature is set to 5-10℃; the vibration frequency is adjusted to 15-20Hz; the bulk phase temperature of the material in the grinding chamber is controlled to be stable at 38-48℃; and the continuous reaction treatment time is 20-30min.

[0026] By employing the above technical solution, temperature control is the core of the solid-phase organic acid hydrolysis reaction: circulating water cooling limits the reaction temperature to 38-48℃, which provides the necessary molecular thermal energy for the reaction while preventing citric acid from decomposing at high temperatures or the material from softening and sticking to the walls. The combination of vibration frequency and time determines the reaction depth. Under the above parameters, the reaction reaches thermodynamic equilibrium, meaning that the active metal ions on the mineral surface are fully converted, while the internal framework structure remains intact, and there is no residual free acid.

[0027] Preferably, the mixing process parameters are as follows: mixing at an ambient temperature of 20-30℃ and a rotation speed of 30-40 rpm for 10-15 minutes; and sieving through a 100-mesh vibrating screen.

[0028] By adopting the above technical solution, the low-speed, short-time mixing method achieves uniform coating while avoiding strong shear forces from damaging the already formed surface complex layer.

[0029] In a second aspect, the present invention provides the application of a feed composition for improving efficiency, reducing costs, and promoting health of laying hens as described in the first aspect in the preparation of feed for laying hens that increases egg production rate, reduces feed conversion ratio, or improves eggshell quality, including adding the feed composition as a functional premix or additive to the basal diet of laying hens in a set proportion.

[0030] By adopting the above technical solution, this feed composition has the following application effects in laying hen farming: Increased egg production rate: The activated trace elements and rare earth elements provided by the composition improve the body's metabolic level and promote the normal function of the reproductive system, thereby prolonging the peak egg production period. Reduced feed conversion ratio: The pre-formed complex layer on the mineral surface improves the solubility and absorption rate of nutrients in the digestive tract; the far-infrared thermal effect improves intestinal microcirculation, enhances feed conversion efficiency, and reduces feed waste. Improved eggshell quality: Easily absorbed calcium sources and trace elements that promote calcium deposition enhance the function of the shell glands, increase eggshell density, and reduce breakage rate and soft-shelled egg rate.

[0031] This invention provides a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, and its application. It has the following beneficial effects: 1. This invention utilizes a solid-phase mechanochemical reaction system constructed using the piezoelectric field generated by ferro-tourmaline and trace amounts of deionized water to promote in-situ complexation reactions between anhydrous citric acid and metal oxides on the surfaces of natural zeolite powder and maifanite micropowder, generating a highly bioactive citric acid-metal complex layer. This technology significantly improves the solubility and bioavailability of minerals such as calcium, iron, and zinc, reduces the loss of mineral nutrients through excrement, thereby improving feed conversion efficiency while reducing the feed conversion ratio and lowering breeding costs.

[0032] 2. This invention synergistically improves the physiological functions of laying hens by introducing the metabolic regulatory function of germanium-containing rare earth ore powder and the biothermal effect of ferroelectric ultrafine powder. Specifically, rare earth elements regulate cell membrane permeability, trace amounts of germanium participate in oxidative metabolism, and the 6-14μm far-infrared rays emitted by ferroelectric ultrafine powder, when excited by body temperature, promote microcirculation in the intestines and oviducts. The combined effect of these three elements enhances the vitality of the reproductive system, prolongs the peak laying period, increases eggshell density, and reduces breakage and soft-shell egg rates.

[0033] 3. This invention solves the problem of moisture absorption and deactivation of solid-phase organic acid hydrolysis products through thermal activation pretreatment and surface coating with natural seaweed mineral powder. High-temperature calcination cleans the mineral channels and reduces the reaction activation energy. After the reaction, the film-forming properties of seaweed powder are used to physically isolate the activated micropowder, blocking the contact between environmental moisture and the internal active complexes, effectively preventing the product from absorbing moisture and clumping, and ensuring the physicochemical stability of the feed composition during storage and transportation. Attached Figure Description

[0034] Figure 1 This is a bar chart comparing the metal ion dissolution performance of each experimental group in the present invention under a simulated slightly acidic environment. Figure 2 This is a comparison chart of the laying hen production performance indicators of each experimental group in this invention; Figure 3 This is a comparison chart of the health and quality indicators of laying hens in each experimental group of this invention. Figure 4 This is a bar chart comparing the far-infrared emissivity of embodiments and comparative examples of the present invention under simulated body temperature conditions. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, examples, comparative examples, and test examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that the parts by weight in the claims and specific embodiments of this specification refer to the relative weight ratio of each component in the formula. In specific preparation embodiments, this part by weight can correspond to any weight unit (such as g, kg, ton, etc.), as long as the corresponding ratio between the components is maintained. To facilitate a clear description of the specific preparation process, kg is selected as the weight unit for illustrative purposes in the following embodiments, that is, 1 part by weight corresponds to 1 kg, but the scope of protection of this invention is not limited to this specific weight class.

[0037] Examples 1-3: Example 1: This embodiment provides a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health. The preparation process is as follows: Accurately weigh 35 kg of natural zeolite powder with a particle size of 200 mesh and 25 kg of maifanite micro powder with a particle size of 200 mesh. Mix the two mineral matrices evenly and feed them into a rotary kiln. Control the heating rate to 5℃ / min, heat to 160℃, and calcine at a constant temperature for 90 min. Discharge the material and allow it to cool naturally to 20℃ in dry air to obtain the pretreated mineral matrix.

[0038] The cooled pretreated mineral matrix was premixed with 12 kg of 600-mesh ferro-tourmaline ultrafine powder, 8 kg of 400-mesh germanium-containing rare earth ore powder, and 1.5 kg of 80-mesh anhydrous citric acid micro powder. The mixture was then fed into a closed eccentric vibratory mill lined with high-wear-resistant polyurethane.

[0039] High-density zirconia ceramic balls were added to the grinding chamber as grinding media. The ceramic balls were mixed with 6mm and 3mm diameter balls at a mass ratio of 1:2, and the mass ratio of material to grinding media was controlled at 1:8. The external circulating water cooling jacket of the mill was turned on, and the cooling water temperature was set to 10℃. The vibratory mill was started, and the vibration frequency was adjusted to 15Hz. At the same time, 0.49kg of deionized water was sprayed into the sealed grinding chamber through a high-pressure atomizing nozzle. This amount of water accounted for approximately 0.6% of the total weight of the grinding material. During the grinding process, the bulk phase temperature of the material in the grinding chamber was monitored and controlled to be stable at 48℃. The reaction was continued for 20 minutes to obtain activated composite micro powder.

[0040] The activated composite micro powder was unloaded and transferred to a low-speed double-helix conical mixer. 4 kg of natural seaweed mineral powder was added, and the mixture was stirred at 30 rpm for 10 minutes at an ambient temperature of 20°C, utilizing the film-forming properties of the seaweed powder to physically coat the surface of the activated mineral powder. The mixed material was passed through a 100-mesh vibrating sieve to intercept trace amounts of abrasive debris. A sample was taken for pH testing (using a 1% aqueous solution), which showed a value of 6.5, indicating that the acidic reactants had been completely consumed and the product met feed safety standards. The mixture was then vacuum-sealed in aluminum-plastic bags to obtain a feed composition for improving efficiency, reducing costs, and promoting health in laying hens.

[0041] Example 2: This embodiment provides a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health. The preparation process is as follows: Accurately weigh 40 kg of natural zeolite powder with a particle size of 300 mesh and 30 kg of maifanite micro powder with a particle size of 300 mesh. Mix the two mineral matrices evenly and feed them into a rotary kiln. Control the heating rate to 8℃ / min, heat to 170℃, and calcine at a constant temperature for 105 min. Discharge the material and allow it to cool naturally to 25℃ in dry air to obtain the pretreated mineral matrix.

[0042] The cooled pretreated mineral matrix was premixed with 15 kg of 800-mesh ferro-tourmaline ultrafine powder, 10 kg of 500-mesh germanium-containing rare earth ore powder, and 2.2 kg of 100-mesh anhydrous citric acid micro powder. The mixture was then fed into a closed eccentric vibratory mill lined with alumina ceramic.

[0043] High-density zirconia ceramic balls were added to the grinding chamber as grinding media. The ceramic balls were mixed with a diameter of 6 mm and 3 mm at a mass ratio of 1:2, and the mass ratio of material to grinding media was controlled at 1:9. The external circulating water cooling jacket of the mill was turned on, and the cooling water temperature was set to 8℃. The vibratory mill was started, and the vibration frequency was adjusted to 18Hz. At the same time, 0.87 kg of deionized water was sprayed into the sealed grinding chamber through a high-pressure atomizing nozzle. This amount of water accounted for approximately 0.9% of the total weight of the grinding material. During the grinding process, the bulk phase temperature of the material in the grinding chamber was monitored and controlled to be stable at 42℃. The reaction was continued for 25 minutes to obtain activated composite micro powder.

[0044] The activated composite micro powder was unloaded and transferred to a low-speed double-helix conical mixer. 5 kg of natural seaweed mineral powder was added, and the mixture was stirred at 35 rpm for 12 minutes at an ambient temperature of 25°C, utilizing the film-forming properties of the seaweed powder to physically coat the surface of the activated mineral powder. The mixed material was passed through a 100-mesh vibrating sieve to intercept trace amounts of abrasive debris. A sample was taken for pH testing (measured using a 1% aqueous solution), which showed a value of 6.8, proving that the acidic reactants had been completely consumed and the product met feed safety standards. The mixture was then vacuum-sealed in aluminum-plastic bags to obtain a feed composition for improving efficiency, reducing costs, and promoting health in laying hens.

[0045] Example 3: This embodiment provides a feed composition for laying hens that enhances efficiency, reduces costs, and promotes health. The preparation process is as follows: Accurately weigh 45 kg of natural zeolite powder with a particle size of 400 mesh and 35 kg of maifanite micro powder with a particle size of 400 mesh. Mix the two mineral matrices evenly and feed them into a rotary kiln. Control the heating rate at 10℃ / min, heat to 180℃, and calcine at a constant temperature for 120 min. Discharge the material and allow it to cool naturally to 30℃ in dry air to obtain the pretreated mineral matrix.

[0046] The cooled pretreated mineral matrix was premixed with 18 kg of 1000-mesh ferro-tourmaline ultrafine powder, 12 kg of 600-mesh germanium-containing rare earth ore powder, and 3.0 kg of 120-mesh anhydrous citric acid micro powder. The mixture was then fed into a closed eccentric vibratory mill lined with high wear-resistant polyurethane.

[0047] High-density zirconia ceramic balls were added to the grinding chamber as grinding media. The ceramic balls were mixed with 6mm and 3mm diameter balls at a mass ratio of 1:2, and the mass ratio of material to grinding media was controlled at 1:10. The external circulating water cooling jacket of the mill was turned on, and the cooling water temperature was set to 5℃. The vibratory mill was started, and the vibration frequency was adjusted to 20Hz. At the same time, 1.36kg of deionized water was sprayed into the sealed grinding chamber through a high-pressure atomizing nozzle. This amount of water accounted for approximately 1.2% of the total weight of the grinding material. During the grinding process, the bulk phase temperature of the material in the grinding chamber was monitored and controlled to be stable at 38℃. The reaction was continued for 30 minutes to obtain activated composite micro powder.

[0048] The activated composite micro powder was unloaded and transferred to a low-speed double-helix conical mixer. 6 kg of natural seaweed mineral powder was added, and the mixture was stirred at 40 rpm for 15 minutes at an ambient temperature of 30°C, utilizing the film-forming properties of the seaweed powder to physically coat the surface of the activated mineral powder. The mixed material was passed through a 100-mesh vibrating sieve to intercept trace amounts of abrasive debris. A sample was taken for pH testing (measured using a 1% aqueous solution), which showed a value of 7.1, indicating that the acidic reactants had been completely consumed and the product met feed safety standards. The mixture was then vacuum-sealed in aluminum-plastic bags to obtain a feed composition for improving efficiency, reducing costs, and promoting health in laying hens.

[0049] Comparative Examples 1-5: Comparative Example 1: The difference from Example 2 is that the grinding reaction step of low-temperature electric field-induced solid-phase acid hydrolysis is not performed.

[0050] The specific operation is as follows: the pretreated mineral matrix is ​​directly placed into a low-speed double-helix conical mixer along with ferro-tourmaline ultrafine powder, germanium-containing rare earth ore powder, anhydrous citric acid micro powder and natural seaweed mineral powder, while 0.87 kg of deionized water is sprayed in. The mixture is physically mixed at room temperature for 30 minutes. The remaining steps are the same as in Example 2.

[0051] Comparative Example 2: The difference compared to Example 2 is that no ferroelectric ultrafine powder was added in the construction of the reaction system.

[0052] The specific operation is as follows: use inert quartz powder (without piezoelectric effect) of equal mass (15kg) and the same particle size distribution to replace ferroelectric ultrafine powder, and the other raw materials and preparation process parameters are exactly the same as in Example 2.

[0053] Comparative Example 3: The difference compared to Example 2 is that anhydrous citric acid micropowder was not added in the construction of the reaction system.

[0054] The specific operation is as follows: the addition of anhydrous citric acid micro powder is omitted in the preparation process, and the other raw materials and preparation process parameters are exactly the same as in Example 2.

[0055] Comparative Example 4: Compared with Example 2, the difference is that in the low-temperature electric field induced solid-phase acid hydrolysis step, deionized water is not sprayed in, and grinding is carried out in a completely dry environment.

[0056] The specific operation is as follows: the high-pressure atomizing nozzle is turned off, 0.87 kg of deionized water is not added, and the other raw materials and preparation process parameters are exactly the same as in Example 2.

[0057] Comparative Example 5: The difference from Example 2 is that the traditional liquid-phase acid leaching process is used instead of the solid-phase reaction process of the present invention.

[0058] The specific operation is as follows: 40 kg of natural zeolite powder and 30 kg of maifanite micro powder are added to 200 kg of aqueous solution containing 2.2 kg of citric acid, heated to 80°C, stirred and soaked for 4 hours, filtered, dried, and pulverized. The resulting acid-washed mineral powder is then physically mixed with 15 kg of iron tourmaline ultrafine powder, 10 kg of germanium-containing rare earth ore powder, and 5 kg of natural seaweed mineral powder. The rest of the process is the same as in Example 2.

[0059] Test Example 1-2: Test Example 1: Test of Lattice Activation and Dissolution Performance under In Vitro Simulated Slightly Acidic Environment Experimental instructions and procedures: This test aims to simulate the slightly acidic conditions of the front section of the avian digestive tract (crop and gizzard environment) and determine the dissolution characteristics of zinc and manganese in the samples of each example and comparative example, thereby characterizing the degree of destruction of mineral lattice and the formation of active citric acid complexes.

[0060] All reagents used in the experiment were of analytical grade, and the water used was deionized water. The specific operating steps are as follows: Medium preparation: Take an appropriate amount of deionized water, add anhydrous sodium acetate and glacial acetic acid, adjust the pH value to 5.0±0.1 to prepare an acetic acid and sodium acetate buffer solution, which is used as a simulated digestion solution; Sample weighing: Accurately weigh the final products prepared in Examples 1 to 3, Comparative Examples 1 to 5, and the untreated mixture of natural zeolite powder and maifanite powder (mass ratio 4:3, as raw material control group). The amount of each sample is 1.000 g (accurate to 0.001 g) and placed in a 250 mL stoppered conical flask. Solid-liquid mixing: Add 100 mL of the prepared simulated digestion solution to each conical flask, seal the flasks, and prevent volume changes caused by liquid evaporation; Isothermal shaking: Place the conical flask in an isothermal water bath shaker, set the temperature to 37℃, and the shaking frequency to 100 r / min. Maintain the isothermal shaking reaction for 60 minutes to ensure full contact between the solid and liquid interfaces; Solid-liquid separation: After the reaction is complete, immediately remove the conical flask and transfer the mixture to a centrifuge tube. Centrifuge at 4000 rpm for 10 minutes. Filter the supernatant through a 0.45 μm microporous membrane and collect the filtrate. Index determination: The concentrations of zinc and manganese in each group of filtrates were determined by atomic absorption spectrophotometer. The determination was repeated three times and the average value was taken. The leaching amount of the elements in a unit mass sample was calculated, and the unit was mg / kg.

[0061] Experimental data: Table 1. Elemental dissolution data for each experimental group under simulated slightly acidic environment (pH 5.0)

[0062] Figure 1 The horizontal axis represents each experimental group, including the raw material control group, Examples 1 to 3, and Comparative Examples 1 to 5; the vertical axis represents the amount of metal ions dissolved, in milligrams per kilogram (mg / kg); the dark gray bars in the figure represent the amount of zinc dissolved, and the light gray bars represent the amount of manganese dissolved.

[0063] Results Analysis and Conclusions: Figure 1 The differences in mineral element leaching performance due to different treatment processes are clearly demonstrated. The heights of the dark gray (zinc) and light gray (manganese) columns corresponding to Examples 1 to 3 are significantly higher than those of the raw material control group and each comparative example group. Specifically, the zinc leaching amount in Example 2 reached 536.8 mg / kg. Figure 1 The column height in this group was more than 11 times that of the raw material control group (46.2 mg / kg), and also significantly higher than that of Comparative Example 1 (128.6 mg / kg), which only underwent physical mixing. This difference confirms that the low-temperature electric field-induced solid-phase acidolysis process of this invention, through the synergy of mechanical force and chemical reagents, disrupts the aluminosilicate framework of zeolite and maifanite, transforming the deeply bound metal cations into easily soluble citric acid complexes.

[0064] Through observation Figure 1 The comparison of column heights in Example 2 with Comparative Example 2 (without tourmaline) and Comparative Example 4 (without water) reveals the synergistic mechanism of the electric field and the water medium. In Comparative Example 2, due to the absence of the polarization electric field provided by tourmaline, the height of its dark gray column (zinc: 314.2 mg / kg) is significantly lower than that of Example 2, with a decrease of 41.5%, indicating that the piezoelectric electric field plays a key role in reducing the activation energy of the solid-phase reaction. Similarly, the column height in Comparative Example 4 is also significantly lower than that in Example 2, confirming the necessity of trace amounts of water as a proton transfer medium. When the system lacks water (Comparative Example 4) or lacks an electric field driving force (Comparative Example 2), the coupling path of mechanics, electricity, and chemistry is blocked, resulting in a decrease in reaction efficiency and an inability to achieve the high dissolution levels of the Example groups.

[0065] also, Figure 1 The column height in Example 2 was also superior to that in Comparative Example 5 (liquid-phase acid leaching). Although the leaching amount (zinc: 448.9 mg / kg) obtained by the liquid-phase method was higher than that of the physical mixing group, it was still inferior to that of the solid-phase shearing process of the present invention. This indicates that the fresh mineral surface generated by the high-frequency impact of the vibratory mill, under the condition of trace amounts of water, can undergo a more complete in-situ coordination reaction with citric acid molecules. The resulting metastable complex layer is directly solidified on the particle surface, avoiding the loss of activity caused by diffusion control and drying crystallization in the liquid-phase method. The column heights of Examples 1, 2, and 3 showed a trend of first increasing and then decreasing, indicating that there is an optimal range for the process parameters. The parameter combination of Example 2 is most conducive to the generation and retention of highly active substances.

[0066] Test Example 2: Comparative Test of Application Effects During Peak Egg Production Period of Laying Hens Experimental instructions and procedures: This test aims to verify the application effect of the feed composition prepared by this technical solution in the actual breeding environment. By quantifying production performance and health indicators, it examines the actual effectiveness of the low-temperature electric field-induced solid-phase acid hydrolysis and interface self-cleaning mechanism in animals.

[0067] The experiment used 6000 Hy-Line Brown commercial laying hens, all 300 days old, in good health, and with consistent egg production rates. The experiment was conducted in a closed, temperature-controlled chicken house, using a three-tiered cage system with a 16-hour light / 8-hour dark light program, and free access to feed and water. The specific operating procedures are as follows: Diet Preparation: First, a basal diet for peak egg production was formulated. This basal diet simulated a conventional commercial feed formula, with its raw material composition strictly following the weight ratios as follows: 600 kg corn, 220 kg soybean meal, 90 kg limestone powder, 12 kg dicalcium phosphate, 3 kg salt, 1 kg choline chloride, 0.3 kg laying hen multivitamins, 1.2 kg methionine, 0.5 kg lysine, and 72 kg wheat bran. Based on this, 10 treatment groups were established. The blank control group was fed only the above basal diet. The experimental groups were supplemented with 3 kg / t (i.e., 0.3% addition) of the finished products prepared in Examples 1 to 3 and Comparative Examples 1 to 5, respectively, to the above basal diet. All feeds were mixed for 15 minutes using a horizontal ribbon mixer, with the coefficient of variation (CV) controlled within 5% to ensure uniform mixing. Grouping and Management: 6000 experimental chickens were randomly assigned to the 10 treatment groups mentioned above, with 600 chickens in each group. Each treatment group had 3 replicates, with 200 chickens in each replicate. A 7-day pre-trial period was set to allow the flocks to acclimatize to the experimental diet; the formal trial period was 56 days (8 weeks). Production performance records: During the trial, the amount of feed, the amount of feed remaining, and the number of eggs laid (including broken and soft eggs) were accurately recorded at fixed times every day, in repeated units, and the total weight of eggs was weighed. Health indicator monitoring: Observe the mental state of the flock daily, record the number of dead and culled birds, and separately count the number of broken eggs and soft-shelled eggs when collecting eggs in the morning; Data Calculation: After the experiment, the total feed consumption, total egg weight, and total number of dead eggs in each group were recorded. The feed conversion ratio (total feed consumption / total egg weight), egg production rate (total number of eggs / total number of chickens per day × 100%), broken / soft egg rate (number of broken / soft eggs / total number of eggs produced × 100%), and mortality rate (number of dead eggs / initial total number × 100%) were calculated.

[0068] Experimental data: Table 2. Statistics on production performance and health indicators of laying hens during peak egg production (8-week trial period)

[0069] Figure 2 The horizontal axis represents each experimental group; the vertical axis on the left corresponds to a dark gray bar chart, representing the feed conversion ratio (F / G), with a lower value indicating higher feed conversion efficiency; the vertical axis on the right corresponds to a black line chart, representing the egg production rate (%), with a higher value indicating better production performance.

[0070] Figure 3 The horizontal axis represents each experimental group; the vertical axis represents the percentage (%); dark gray bars represent the rate of broken soft eggs, and light gray bars represent the rate of dead eggs.

[0071] Results Analysis and Conclusions: Based on the data in Table 2 and Figure 2 As shown in the trend, Example 2 exhibits a significant advantage in production performance. The feed conversion ratio (FCR) of the blank control group was 2.25, which is consistent with the typical performance level of conventional commercial peak-laying feed. In contrast, the Example 2 group, which added the premix of this invention, showed a significantly reduced FCR to 2.12, a decrease of 5.8%; at the same time, the egg production rate increased from 91.2% to 96.5%.

[0072] This result confirms the effectiveness of the in-situ growth mechanism of the metastable complex layer: under the assistance of a low-temperature electric field, metal cations on the mineral surface are converted into citric acid complexes. This pre-digested layer dissolves rapidly after entering the digestive tract, improving the bioavailability of trace elements, optimizing metabolism, and enabling feed nutrients to be converted into egg weight more efficiently. In contrast, the data of Comparative Example 1 (physical mixing, feed-to-egg ratio 2.21) and Comparative Example 3 (without citric acid, feed-to-egg ratio 2.23) were only slightly better than the blank control group, demonstrating that without the complex structure constructed by acidic ligands, simple mineral addition is unlikely to achieve significant synergistic effects and cost reduction.

[0073] Comparing Example 2 with Comparative Example 2 (without tourmaline, material-to-protein ratio 2.18) and Comparative Example 4 (without water, material-to-protein ratio 2.19), the key role of the mechanical, electrical, and chemical coupling process is revealed. Data shows that without the piezoelectric field provided by tourmaline or without moisture as a proton transport channel, the solid-phase acid hydrolysis reaction is hindered, the mineral lattice fails to open effectively, resulting in insufficient generation of active ingredients. Only through the synergistic effect of mechanical force, electric field, and trace amounts of moisture can the activation energy of the reaction be minimized, generating highly active composite micropowder.

[0074] In terms of health indicators, Figure 3 The results showed that Example 2 had the lowest rates of broken soft-shelled eggs (0.42%) and dead eggs (0.17%), significantly better than Comparative Example 5 using the liquid-phase acid leaching method (broken soft-shelled egg rate 0.85%, dead egg rate 0.33%). This difference validates the interface self-cleaning and infrared emission protection mechanism: the solid-phase in-situ coating process of this invention forms a uniform, easily dissociable, slightly acidic thin layer, which not only releases nutrients but also prevents intestinal chyme from covering the tourmaline surface. The exposed tourmaline crystals continuously emit 6-14μm (peak at 8-10μm) far-infrared rays at body temperature, promoting intestinal and fallopian tube microcirculation, thereby improving calcium deposition efficiency (reducing broken soft-shelled egg rate) and enhancing stress resistance (reducing dead egg rate).

[0075] Test Example 3: Detection of Far-Infrared Emission Performance under Simulated Avian Body Temperature Environment Experimental instructions and procedures: This test aims to quantitatively detect the far-infrared emission characteristics of the feed composition of this invention under simulated laying hen body temperature (38-42℃) conditions, in order to verify the radiation performance of ferro-tourmaline ultrafine powder within a specific wavelength range after low-temperature electric field-induced solid-phase acid hydrolysis treatment. The experiment was conducted using an infrared emissivity meter (model: IRE-2) in conjunction with a high-precision constant-temperature heating platform. The specific operating steps are as follows: Sample preparation: Take 5.0 g of the final powder products prepared in Examples 1 to 3, Comparative Examples 1, 2, and 5, respectively. Use a tablet press to compress the powder into circular thin sheets with a diameter of 30 mm and a thickness of 2 mm under a pressure of 15 MPa, ensuring a smooth surface without cracks. Prepare 3 parallel samples for each group. Reference calibration: Turn on the infrared emissivity meter and preheat for 30 minutes. Use a standard blackbody furnace as the reference source, set the blackbody temperature to 40.0℃, and perform full-band calibration after the temperature stabilizes. Set the system emissivity reference to 1.00. Environmental simulation and testing: The prepared sample slice was placed on a constant-temperature heating stage, with the surface temperature of the stage set at 40.0℃ ± 0.1℃. The surface temperature of the sample was monitored in real time using a contact thermocouple. After the surface temperature of the sample stabilized at 40.0℃, the detection probe was vertically aligned with the center of the sample, maintaining a distance of 20mm. Data acquisition: The spectral response range was set to 6-14 μm, and the instrument automatically integrated to calculate the normal total emissivity within this band. Each parallel sample was measured five times consecutively. After removing the maximum and minimum values, the arithmetic mean was taken as the measurement result for that sample. Finally, the average value of three parallel samples was taken as the final data for that group.

[0076] Experimental data: Table 3. Results of normal total emissivity measurement for samples in each group under simulated body temperature (40℃) conditions.

[0077] Figure 4 The horizontal axis represents each experimental group, and the vertical axis represents the normal total emissivity. The values ​​above the bars in the figure are the specific emissivity measurements, and the dashed line represents the 0.85 technical threshold set in this invention.

[0078] Results Analysis and Conclusions: Combining the data in Table 3 with Figure 4 The columnar distribution trend shown indicates that the sample in Example 2, under a constant temperature of 40°C, achieved a far-infrared emissivity of 0.892 in the 6-14μm wavelength band. Figure 4 The emissivity of the sample was significantly higher than the threshold (0.85) and far exceeded that of Comparative Example 2 (0.543). This data visualization confirms that the ferroelectric tourmaline ultrafine powder is the core functional component for generating far-infrared radiation, while inert matrices such as quartz powder do not possess high emissivity at the same temperature. The emissivity of Examples 1 to 3 was consistently above 0.86. Figure 4 The formation of a stable high plateau region indicates that the component ratio and preparation process of the present invention can ensure that the product continuously emits specific wavelength infrared rays that match the organism within the body temperature range of poultry.

[0079] from Figure 4 The height differences among the groups show that Comparative Example 1 (0.688) and Comparative Example 5 (0.712) both failed to meet the threshold requirement. This indicates that simple physical mixing or traditional liquid-phase acid leaching processes cannot fully stimulate the radiation properties of minerals. The low-temperature electric field-induced solid-phase acid hydrolysis process used in this invention removes the inactive layer on the mineral surface through mechanochemical action and utilizes citric acid molecules to construct a monomolecular thermally conductive layer on the tourmaline surface, reducing interfacial thermal resistance. This lattice-level modification allows thermal energy to be converted into infrared radiation energy more effectively, avoiding the surface active site masking phenomenon caused by drying and agglomeration in traditional liquid-phase methods, thus achieving a higher emissivity at the same temperature.

[0080] High emissivity is directly related to the health-promoting mechanism of this invention. The 6-14 μm band covers the resonant absorption frequencies of water and protein molecules. The emissivity of nearly 0.9 in the example group at 40°C means that after the feed enters the digestive tract, it can transfer energy to intestinal epithelial cells through non-contact radiation. The continuous effect of this physical field promotes local microcirculation and transmembrane transport efficiency, explaining the increased egg production and reduced mortality observed in the aforementioned test examples. The coupling of physicochemical modification and thermal radiation performance constitutes the key basis for the cost-effectiveness and efficiency improvement of this invention.

Claims

1. A synergistically cost-effective and health-promoting feed composition for laying hens, characterized by, Made from the following ingredients in parts by weight: 35-45 parts natural zeolite powder, 25-35 parts maifanite micro powder, 12-18 parts ferro-tourmaline ultrafine powder, 8-12 parts germanium-containing rare earth ore powder, 1.5-3.0 parts anhydrous citric acid micro powder, 4-6 parts natural seaweed mineral powder, and deionized water. The amount of deionized water added is 0.6%-1.2% of the total weight of the natural zeolite powder, the maifanite micro powder, the ferroelectric ultrafine powder, the germanium-containing rare earth ore powder, and the anhydrous citric acid micro powder.

2. The synergistically effective, cost-reducing and health-promoting feed composition for laying hens according to claim 1, characterized in that, The weight parts of the raw materials are: The composition includes 40 parts of natural zeolite powder, 30 parts of maifanite micro powder, 15 parts of ferro-tourmaline ultrafine powder, 10 parts of germanium-containing rare earth ore powder, 2.2 parts of anhydrous citric acid micro powder, 5 parts of natural seaweed mineral powder, and deionized water. The amount of deionized water added is 0.9% of the total weight of the natural zeolite powder, the maifanite micro powder, the ferroelectric ultrafine powder, the germanium-containing rare earth ore powder, and the anhydrous citric acid micro powder.

3. The synergistically effective, cost-reducing and health-promoting feed composition for laying hens according to claim 1, characterized in that, The particle size specification of the raw material is as follows: The particle size of the natural zeolite powder is 200-400 mesh, the particle size of the maifanite micro powder is 200-400 mesh, the particle size of the iron tourmaline ultrafine powder is 600-1000 mesh, the particle size of the germanium-containing rare earth ore powder is 400-600 mesh, and the particle size of the anhydrous citric acid micro powder is 80-120 mesh.

4. The synergistically effective, cost-reducing and health-promoting feed composition for laying hens according to claim 1, characterized in that, The 1% aqueous solution of the feed composition for improving efficiency, reducing costs, and promoting health in laying hens has a pH value of 6.5-7.1, and the emissivity of the feed composition for improving efficiency, reducing costs, and promoting health in laying hens to far-infrared rays with a wavelength of 6-14μm is ≥0.85 at a temperature of 38-42℃.

5. The feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, as described in claim 1, is characterized in that... The method for preparing the efficiency-enhancing, cost-reducing, and health-promoting feed composition for laying hens includes the following steps: The natural zeolite powder and the maifanite micro powder are mixed evenly, heated and calcined, and then cooled to obtain a pretreated mineral matrix. The pretreated mineral matrix is ​​mixed with the ferro-tourmaline ultrafine powder, the germanium-containing rare earth ore powder and the anhydrous citric acid micro powder to obtain a mixture; The mixture is put into a closed eccentric vibratory mill, grinding media is added, and circulating water cooling is turned on. While vibrating and grinding, the deionized water is sprayed into the mill chamber through an atomizing nozzle to control the temperature of the material in the mill chamber and carry out reaction treatment to obtain activated composite micro powder. The activated composite micro powder is transferred to a mixer, and the natural seaweed mineral powder is added and mixed. The mixture is then sieved to obtain the feed composition for laying hens that enhances efficiency, reduces costs, and promotes health.

6. The feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, as described in claim 5, is characterized in that... The heating and roasting process parameters are as follows: the heating rate is controlled at 5-10℃ / min, the temperature is heated to 160-180℃, and the temperature is kept constant for 90-120 minutes; the cooling is natural cooling to 20-30℃.

7. The feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, as described in claim 5, is characterized in that... The inner lining material of the sealed eccentric vibratory mill is high wear-resistant polyurethane or alumina ceramic, and the grinding media is zirconia ceramic balls. The zirconia ceramic balls are made by mixing 6mm and 3mm diameter balls in a mass ratio of 1:

2. The mass ratio of the mixture to the grinding media is 1:8-1:

10.

8. The feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, as described in claim 5, is characterized in that... The process parameters for the reaction treatment are as follows: the circulating water cooling temperature is set to 5-10℃, the vibration frequency is adjusted to 15-20Hz, the bulk phase temperature of the material in the grinding chamber is controlled to be stable at 38-48℃, and the continuous reaction treatment time is 20-30min.

9. The feed composition for laying hens that enhances efficiency, reduces costs, and promotes health, as described in claim 5, is characterized in that... The mixing process parameters are as follows: mixing at an ambient temperature of 20-30℃ and a rotation speed of 30-40 rpm for 10-15 minutes; the sieving is done through a 100-mesh vibrating screen.

10. The use of a feed composition for laying hens as described in any one of claims 1-9 in the preparation of feed for laying hens that improves egg production rate, reduces feed conversion ratio, or improves eggshell quality.

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