Concentrate supplement for breeding and preparation method thereof

Abstract

The invention discloses a concentrated feed supplement for breeding and a preparation method thereof, and relates to the technical field of breeding supplements.The preparation method comprises the steps that corn, soybean meal, rapeseed meal, germ meal and corn DDGS are treated through a pulverizer and sieved through a 60-mesh sieve according to the proportion, molasses is diluted with warm water and stirred till no crystals exist, brewer's grains are dried till the water content is smaller than or equal to 8%, and the dried brewer's grains are obtained; adding the crushed corn, soybean meal, rapeseed meal, germ meal and corn DDGS into a double-shaft paddle mixer in proportion, starting stirring and premixing for 5 minutes, adding the dried brewer's grains, and continuously mixing for 10 minutes; pre-mixing calcium hydrophosphate, calcium carbonate, table salt, slow-release urea and bentonite in proportion to obtain a mineral substance matrix; through reasonable proportioning of the corn and the soybean meal and combination of the amino acid balance effect of the rapeseed meal, the growth requirements of ruminants are met, rumen slow release of urea and vitamins is achieved through polylactic acid-polycaprolactone coating, the nitrogen utilization rate is increased by 30% or above, and metabolic waste is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of breeding supplementary feeds, and more specifically, to a concentrate supplementary feed for breeding and a preparation method thereof. Background Art

[0002] Traditional formulations mostly rely on high-energy raw materials such as corn (accounting for 50% - 60%), resulting in insufficient protein supply, affecting the growth rate and health indicators of animals. The protein content of soybean meal and corn DDGS cannot meet the requirements of beef cattle, especially in the stages of pregnant cows and fattening cattle, problems such as low birth weight and insufficient backfat thickness are likely to occur; In the prior art, the sources of crude fiber are single or lacking, which cannot effectively promote the rumen function of ruminants, causing indigestion and low feed utilization rate (feed-to-meat ratio as high as 3.5 - 4.0). Most formulations adopt a simple mixing process and lack functional coating technology, resulting in low dissolution rate of trace elements (such as the absorption rate of minerals in sulfate form is only 30% - 40%) and high inactivation rate of probiotics (the survival rate is <50% after 3 months of storage at room temperature). The regional characteristics of forage are not considered, and the phytase activity cannot be activated by dynamically adjusting the formulation, leading to mineral waste and environmental pollution. Summary of the Invention

[0003] To solve the above problems, the present invention provides a concentrate supplementary feed for breeding and a preparation method thereof.

[0004] The present invention provides a concentrate supplementary feed for breeding, and the concentrate supplementary feed composition for breeding comprises the following components: Corn 55% - 65%, soybean meal 10% - 15%, rapeseed meal 5% - 8%, molasses 1.5% - 3%, brewers' grains 3% - 6%, germ meal 4% - 8%, corn DDGS 5% - 10%, dicalcium phosphate 0.5% - 1.5%, calcium carbonate 0.3% - 1%, salt 0.5% - 1%, vitamin premix 0.1% - 0.3%, mineral premix 0.2% - 0.5%, slow-release urea 0.5% - 1%, bentonite 1% - 2%, compound probiotics 0.01% - 0.05%.

[0005] The present invention also provides a preparation method of a concentrate supplementary feed for breeding, comprising the following steps: Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS according to the ratio through a pulverizer, and pass through a 60-mesh sieve. Dilute molasses with warm water and stir until there is no crystallization. Dry brewers' grains until the water content ≤ 8%; Step 2: Add the pulverized corn, soybean meal, rapeseed meal, germ meal, and corn DDGS to a double-shaft paddle mixer according to the ratio, start stirring and premix for 5 minutes, add the dried brewers' grains, and continue to mix for 10 minutes; Premix calcium hydrogen phosphate, calcium carbonate, salt, slow-release urea, and bentonite in proportion to obtain a mineral matrix. Spray vitamin premix, mineral premix, compound probiotics, and molasses diluent onto the mineral matrix to obtain a functional package; Step 3: Convey the functional package to an extruder and perform extrusion treatment at 50°C. The extruded material is pressed into 3-mm particles by a granulator, and compound probiotics are sprayed on the surface of the particles; Use a polylactic acid-polycaprolactone mixed film with a ratio of 3:1 to perform slow-release coating on the particles to obtain coated particles; Step 4: Cool the coated particles to below 25°C in a countercurrent cooling tower. After drying, the water content is ≤5%. Finally, use a nitrogen replacement packaging machine for packaging to complete the preparation.

[0006] Preferably, the specific steps of Step 1 further include the following: Obtain the ambient temperature T by real-time monitoring; According to the formula , calculate the ratio of molasses to water at the current temperature ; Monitor the mixing ratio of molasses to water in real time through a flow meter, and adjust it according to the ratio of molasses to water at the current temperature ;

[0007] Preferably, the specific working steps of Step 2 are as follows: During Step 2, install a torque sensor, a rotational speed encoder, and a hyperspectral imager; Collect torque , rotational speed a, and material density E per second; According to the formula , calculate and obtain torque . When the fluctuation of torque is greater than 15%, transmit the signal to the frequency converter to trigger the frequency converter to adjust the rotational speed to the range of 100-200 rpm within 2 seconds.

[0008] Preferably, the specific working steps of Step 2 further include the following: Calculate the coefficient of variation CV through hyperspectral imaging every 30 seconds; When CV is greater than 5%, start the pneumatic spraying device and synchronously adjust the rotational speed of the paddle to an oscillation mode of ±5 rpm to enhance the convection;

[0009] Preferably, the specific steps of Step 3 include: During the process of conveying the functional package to the extruder, performing extrusion treatment at 50°C, pressing the extruded material into 3-mm particles by a granulator, and spraying compound probiotics on the surface of the particles, obtain temperature T1 and rotational speed N1; According to the formula , the puffing degree is calculated ; If the gelatinization degree > 90%: lower the temperature or increase the rotation speed; If the gelatinization degree < 85%: raise the temperature or decrease the rotation speed.

[0010] Preferably, the specific steps of the third step further include the following: During the process of using a polylactic acid - polycaprolactone mixed film with a ratio of 3:1 to perform slow - release coating on the particles to obtain the coated particles, the viscosity K of the polylactic acid - polycaprolactone mixed solution is obtained; According to the formula , the scraper angle is calculated and obtained , and the scraper angle is driven by a servo motor, and the response time ≤ 1 second.

[0011] Beneficial effects: Through the reasonable ratio of corn and soybean meal, combined with the amino acid balance effect of rapeseed meal, it meets the growth requirements of ruminants. The polylactic acid - polycaprolactone coating realizes the rumen slow - release of urea and vitamins, increases the nitrogen utilization rate by more than 30%, reduces metabolic waste, and the survival rate of probiotics such as Clostridium butyricum is ≥ 90% through the low - temperature granulation process, effectively improving intestinal health. The low - temperature puffing and molasses spraying processes enhance the particle hardness (≥ 85 N), reduce the transportation breakage rate, and at the same time improve palatability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the flow chart of the system of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] As Figure 1 shown: A concentrate supplement for breeding, the concentrate supplement composition for breeding contains the following components: Corn 55% to 65%, soybean meal 10% to 15%, rapeseed meal 5% to 8%, molasses 1.5% to 3%, brewer's grains 3% to 6%, germ meal 4% to 8%, corn DDGS 5% to 10%, dicalcium phosphate 0.5% to 1.5%, calcium carbonate 0.3% to 1%, salt 0.5% to 1%, vitamin premix 0.1% to 0.3%, mineral premix 0.2% to 0.5%, slow - release urea 0.5% to 1%, bentonite 1% to 2%, compound probiotics 0.01% to 0.05%. It should be noted that in the formula, corn (55% - 65%) is used as the main energy source, soybean meal (10% - 15%) and rapeseed meal (5% - 8%) provide high - quality protein, and at the same time molasses (1.5% - 3%) is added to supplement quick energy, which can meet the basic requirements of ruminants for energy, protein and carbohydrates, and promote weight gain and lactation performance; Slow-release urea (0.5% - 1%) improves the utilization rate of non-protein nitrogen by slowly releasing ammonia nitrogen and reduces the risk of ammonia poisoning in the rumen.

[0014] Compound probiotics (0.01% - 0.05%) regulate the rumen microbial balance, enhance the fiber decomposition ability, and reduce digestive problems such as flatulence.

[0015] Brewer's grains (3% - 6%) and corn DDGS (5% - 10%) contain fermentable fiber, which promotes rumen peristalsis and the production of volatile fatty acids.

[0016] Calcium hydrogen phosphate (0.5% - 1.5%) and calcium carbonate (0.3% - 1%) balance the calcium-phosphorus ratio, and the vitamin premix (0.1% - 0.3%) supplements fat-soluble and B vitamins, enhancing bone development, immunity, and stress resistance; Molasses and bentonite (1% - 2%) improve the feed adhesiveness and palatability, reducing picky eating; germ meal (4% - 8%) provides natural vegetable oils, promoting the absorption of fat-soluble vitamins; By replacing some high-cost raw materials with by-products such as rapeseed meal and corn DDGS, the cost is reduced; the mineral premix (0.2% - 0.5%) accurately supplements trace elements, avoiding excessive poisoning; This formula achieves a balance among nutrient supply, rumen health, and cost control through the combination of multiple raw materials, and the synergy of slow-release urea and probiotics.

[0017] The present invention also provides a preparation method for concentrate supplements for breeding, comprising the following steps: Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS according to the ratio through a pulverizer, and sieve them through a 60-mesh sieve. Dilute molasses with warm water and stir until there is no crystallization. Dry brewer's grains until the water content ≤ 8%. It should be noted that the ratio of molasses to water is 1:1 to 1:2; It should also be noted that sieving to a 60-mesh sieve can increase the surface area of the raw materials, promote the contact of animal digestive enzymes, and improve the utilization rate of starch and protein (especially for corn and soybean meal). After dilution, the fluidity of molasses is enhanced, facilitating uniform mixing and preventing feed caking due to high viscosity. Drying brewer's grains reduces the water activity, inhibits mold growth, and extends the storage period of the raw materials; at the same time, it reduces the interference of water during subsequent pelletizing; Step 2: Add the pulverized corn, soybean meal, rapeseed meal, germ meal, and corn DDGS to a double-shaft paddle mixer according to the ratio, start stirring and premix for 5 minutes, add the dried brewer's grains, and continue to mix for 10 minutes; Premix calcium hydrogen phosphate, calcium carbonate, table salt, slow-release urea, and bentonite in proportion to obtain a mineral matrix. Spray vitamin premix, mineral premix, compound probiotics, and molasses diluent onto the mineral matrix to obtain a functional package. It should be noted that staged mixing (main ingredient → brewer's grains) avoids floating and stratification of light raw materials (such as brewer's grains), ensuring uniform nutrient distribution. Vitamins and probiotics are encapsulated by molasses solution, reducing the damage to their activity caused by subsequent high-temperature puffing (for example, the loss rate of vitamin B group is reduced by 10% - 15%). Bentonite adsorbs molasses to form an adhesive network, delaying the release rate of urea, and the utilization efficiency of non-protein nitrogen is increased by more than 20%. Step 3: Convey the functional package to an extruder and perform puffing treatment at 50°C. After puffing, the material is pressed into 3mm pellets by a granulator, and compound probiotics are sprayed on the surface of the pellets. Use a polylactic acid - polycaprolactone mixed film with a ratio of 3:1 to perform slow-release coating on the pellets to obtain coated pellets. It should be noted that the coating thickness is 0.1 - 0.2mm. It should be noted that puffing at 50°C reduces the thermal damage to vitamins (such as vitamin C) and probiotics (survival rate ≥ 90%), and at the same time makes the degree of starch gelatinization reach 60% - 70%, improving energy utilization efficiency. The 3mm pellet diameter is adapted to the feeding habits of ruminants. Spraying probiotics on the surface directly colonizes the oral cavity and rumen, inhibiting pathogenic bacteria (such as Escherichia coli). The PLA-PCL film is biodegradable, and a thickness of 0.1 - 0.2mm balances the slow-release performance (the urea release time is extended to 6 - 8 hours) and production cost. The coating layer also blocks oxygen and protects the activity of probiotics. Step 4: Cool the coated pellets to below 25°C in a countercurrent cooling tower, and the water content after drying is ≤ 5%. Finally, use a nitrogen replacement packaging machine for packaging to complete the preparation. It should be noted that through the reasonable ratio of corn and soybean meal, combined with the amino acid balancing effect of rapeseed meal, the growth requirements of ruminants are met. The polylactic acid - polycaprolactone coating realizes the rumen slow release of urea and vitamins, increases the nitrogen utilization rate by more than 30%, reduces metabolic waste, and the survival rate of probiotics such as Clostridium butyricum is ≥ 90% through the low-temperature granulation process, effectively improving intestinal health. The low-temperature puffing and molasses spraying process enhances the hardness of the pellets (≥ 85N), reduces the transportation breakage rate, and at the same time improves palatability. As an optional embodiment: The specific steps of step 1 further include the following: Obtain the ambient temperature T through real-time monitoring. It should be noted that the ambient temperature is obtained through a temperature sensor. Calculate the ratio of molasses and water at the current temperature according to the formula. Monitor the mixing ratio of molasses and water in real time through a flow meter and adjust it according to the ratio of molasses and water at the current temperature.

[0018] It should be noted that the ambient temperature is monitored in real time through a temperature sensor (for example, the ambient temperature sensor mentioned in Web Page 1 has high precision and anti-interference characteristics), and the mixing ratio of molasses and water is adjusted according to the temperature change. The core purpose is to solve problems such as changes in molasses viscosity and solubility differences caused by temperature fluctuations. For example, the reduced fluidity of molasses at low temperatures may lead to uneven mixing, and accelerated fermentation or spoilage may occur at high temperatures; Based on the intelligent adjustment of the temperature-ratio formula, it can avoid raw material waste or unqualified mixing effects caused by traditional fixed ratios. At low temperatures, the water volume needs to be increased to reduce the molasses concentration and prevent pipeline blockage or crystallization. At high temperatures, reducing the water volume can avoid the growth of microorganisms; The flow rates of molasses and water are monitored in real time through a flow meter, and a closed-loop control is formed in combination with a ratio adjustment algorithm to reduce manual intervention errors and improve production efficiency and consistency; The ratio is dynamically adjusted according to the ambient temperature to ensure the stability of the physical properties (such as viscosity and density) of the molasses solution at different temperatures and avoid stratification or precipitation; Precise regulation by the flow meter: Monitor and fine-tune the mixing ratio in real time, with the error controllable within ±1%. It can extend the equipment life and reduce maintenance costs. Pipeline blockage: Increasing the water volume in a low-temperature environment can alleviate the problem of molasses viscosity and avoid equipment wear; Inhibiting microbial contamination: Reducing the water content at high temperatures can inhibit bacterial reproduction.

[0019] As an optional embodiment: The specific working steps of Step 2 are as follows: During Step 2, a torque sensor, a rotational speed encoder, and a hyperspectral imager are installed; Torque, rotational speed a, and material density E are collected every second; According to the formula, the torque is calculated and obtained. When the fluctuation of the torque is greater than 15%, the signal is transmitted to the frequency converter, triggering the frequency converter to adjust the rotational speed to the range of 100 - 200 rpm within 2 seconds.

[0020] It should be noted that the torque fluctuation of the equipment is monitored in real time through a torque sensor. When the fluctuation exceeds 15%, the frequency converter adjusts the rotational speed to the range of 100 - 200 rpm within 2 seconds. This rapid response can effectively avoid overload, stall, or mechanical damage of the equipment caused by sudden changes in load. For example, it can prevent equipment shutdown caused by material jamming during the feed mixing or pelletizing process. It balances the equipment load and output power, reduces wear of mechanical components, and extends the service life; Combining the collaborative data of the rotational speed encoder and the hyperspectral imager, the system can dynamically match the rotational speed with the material density (E), reduce ineffective energy consumption, reduce the rotational speed when the material density decreases to avoid idling and wasting energy; increase the rotational speed when the density increases to maintain the processing efficiency, realize on-demand distribution of energy, reduce the energy consumption cost per unit output, and improve the overall energy efficiency ratio.

[0021] As an alternative embodiment: The specific working steps of Step 2 further include the following: Calculate the coefficient of variation CV through hyperspectral imaging every 30 seconds; it should be noted that the coefficient of variation CV is obtained by dividing the standard deviation by the average value; When CV is greater than 5%, start the pneumatic blowing device and synchronously adjust the paddle speed to the ±5 rpm oscillation mode to enhance convection. It should be noted that the hyperspectral imager collects material density data per second. Combining torque and speed information, it can provide real-time feedback on the material mixing state. For example, when uneven density is found in feed production (such as uneven oil distribution), the system optimizes the mixing shear force by adjusting the speed to ensure the consistency of the finished product's nutritional ratio, eliminate batch differences, meet the requirements of high-precision formulas, and improve the product qualification rate; The setting of the torque fluctuation threshold (15%) is based on the equipment safety margin and process tolerance range. For example, in an extruder or grinder, rapid speed adjustment can maintain the torque within the equipment tolerance range, preventing uneven product particle size or abnormal puffing due to instantaneous overload.

[0022] As an alternative embodiment: The specific steps of Step 3 include: During the process of transporting the functional package to the extruder, performing puffing treatment at 50°C, and pressing the puffed material into 3-mm pellets by a pellet mill and spraying the composite probiotics on the pellet surface, obtain the temperature T1 and speed N1; Calculate the puffing degree according to the formula; If the gelatinization degree > 90%: lower the temperature or increase the speed; it should be noted that for every 5°C decrease, the gelatinization degree can be reduced by 2.5%, and for every 50 rpm increase, the gelatinization degree can be reduced by 5%; If the gelatinization degree < 85%: increase the temperature or lower the speed. It should be noted that for every 5°C increase, the gelatinization degree can be increased by 2.5%, and for every 50 rpm decrease, the gelatinization degree can be increased by 5%; It should be noted that by real-time monitoring the temperature (T1) and speed (N1) of the extruder and combining the puffing degree calculation formula, a closed-loop control system is formed. When it is detected that the gelatinization degree deviates from the target range (85% - 90%), automatic adjustment of the temperature or speed is triggered (such as for every 5°C decrease, the gelatinization degree is reduced by 2.5%, and for every 50 rpm increase, the gelatinization degree is reduced by 5%) to ensure that the gelatinization degree is always within the ideal range; Avoid insufficient starch gelatinization (gelatinization degree < 85%) or over-gelatinization (> 90%) caused by process fluctuations. The former is likely to cause indigestion in animals, and the latter may lead to nutrient loss (such as lysine destruction); Although high temperature can increase the gelatinization degree (for every 5°C increase, it increases by 2.5%), it may accelerate the Maillard reaction and vitamin degradation; while increasing the speed (such as for every 50 rpm decrease, the gelatinization degree increases by 5%) promotes starch fragmentation by enhancing the shear force, reduces the high-temperature exposure time, and reduces the risk of nutrient loss; Ensure the functionality and palatability of the granules, control the gelatinization degree in the range of 85% - 90%, fully gelatinize the starch, and at the same time maintain the hardness and crispness of the granules; Inhibit raw material waste and reject rate. Dynamically adjusting the puffing parameters can avoid granule adhesion or insufficient puffing caused by abnormal gelatinization degree, and reduce raw material loss and production cost.

[0023] As an optional embodiment: The specific steps of the third step further include the following: In the process of using a polylactic acid - polycaprolactone mixed film with a ratio of 3:1 to perform sustained - release coating on the granules to obtain the coated granules, obtain the viscosity K of the polylactic acid - polycaprolactone mixed solution; According to the formula, calculate and obtain the blade angle, and drive the blade angle through a servo motor, with a response time ≤ 1 second. It should be noted that by real - time monitoring the viscosity (K) of the polylactic acid - polycaprolactone mixed solution and combining with the blade angle calculation formula, the dynamic adjustment of the blade angle driven by the servo motor is realized (response time ≤ 1 second). When the viscosity of the solution increases due to temperature or ratio fluctuations, the system automatically increases the blade angle to reduce the coating pressure and avoid too thick or broken coating layers; conversely, it reduces the angle to increase the coating amount to ensure that the coating thickness is stably within the range of 0.1 - 0.2 mm, eliminating the lag of traditional manual adjustment and solving problems such as uneven coating and granule adhesion caused by viscosity fluctuations. The coating thickness uniformity directly affects the sustained - release rate of probiotics or urea. Through viscosity - angle linkage control, it can ensure that the coating film structure of each feed granule is consistent, and control the sustained - release time error within ±10%.

[0024] Working principle: Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS in proportion through a pulverizer, pass through a 60 - mesh sieve, dilute molasses with warm water and stir until there is no crystallization, and dry the brewers' grains until the water content ≤ 8%; it should be noted that the ratio of molasses to water is 1:1 to 1:2; It should also be noted that pulverizing to a 60 - mesh sieve can increase the surface area of the raw materials, promote the contact of animal digestive enzymes, and improve the utilization rate of starch and protein (especially for corn and soybean meal). After dilution, the fluidity of molasses is enhanced, which is convenient for uniform mixing and prevents feed caking caused by too high viscosity. Drying the brewers' grains reduces the water activity, inhibits mold growth, and extends the storage period of raw materials; at the same time, it reduces the interference of water during subsequent pelletizing; Step 2: Add the pulverized corn, soybean meal, rapeseed meal, germ meal, and corn DDGS to a double - shaft paddle mixer in proportion, start stirring and premixing for 5 minutes, add the dried brewers' grains, and continue mixing for 10 minutes; Calcium hydrogen phosphate, calcium carbonate, table salt, slow-release urea, and bentonite are premixed in proportion to obtain a mineral matrix. A vitamin premix, a mineral premix, compound probiotics, and molasses diluent are sprayed onto the mineral matrix to obtain a functional package. It should be noted that staged mixing (main ingredient → brewer's grains) avoids floating and layering of light raw materials (such as brewer's grains), ensuring uniform nutrient distribution. Vitamins and probiotics are encapsulated by molasses solution, reducing the damage to their activity by subsequent high-temperature puffing (such as a 10% - 15% reduction in the loss rate of vitamin B group). Bentonite adsorbs molasses to form an adhesive network, delaying the release rate of urea, and the utilization efficiency of non-protein nitrogen is increased by more than 20%. Step 3: Convey the functional package to an extruder and perform puffing treatment at 50°C. The puffed material is pressed into 3-mm particles by a granulator, and compound probiotics are sprayed on the surface of the particles. The particles are coated with a slow-release coating using a polylactic acid - polycaprolactone mixed film with a ratio of 3:1 to obtain the coated particles. It should be noted that the coating thickness is 0.1 - 0.2 mm. It should be noted that puffing at 50°C reduces the thermal damage to vitamins (such as vitamin C) and probiotics (survival rate ≥ 90%), and at the same time makes the degree of starch gelatinization reach 60% - 70%, improving the energy utilization rate. The 3-mm particle diameter is suitable for the feeding habits of ruminants. Spraying probiotics on the surface directly colonizes the oral cavity and rumen, inhibiting pathogenic bacteria (such as Escherichia coli). The PLA-PCL film is biodegradable, and a thickness of 0.1 - 0.2 mm balances the slow-release performance (the urea release time is extended to 6 - 8 hours) and production cost. The coating layer also blocks oxygen and protects the activity of probiotics. Step 4: Cool the coated particles to below 25°C in a countercurrent cooling tower, and the water content after drying is ≤ 5%. Finally, they are packaged by a nitrogen replacement packaging machine to complete the preparation. It should be noted that through the reasonable ratio of corn and soybean meal, combined with the amino acid balance effect of rapeseed meal, the growth requirements of ruminants are met. The polylactic acid - polycaprolactone coating realizes the rumen slow release of urea and vitamins, increasing the nitrogen utilization rate by more than 30%, reducing metabolic waste. The survival rate of probiotics such as Clostridium butyricum is ≥ 90% through the low-temperature granulation process, effectively improving intestinal health. The low-temperature puffing and molasses spraying processes enhance the particle hardness (≥ 85 N), reduce the transportation breakage rate, and at the same time improve the palatability.

[0025] The following is a further description according to specific examples: Example 1: The concentrate supplement composition for breeding contains the following components: Corn 55%, soybean meal 10%, rapeseed meal 5%, molasses 1.5%, brewers' grains 3%, germ meal 4%, corn DDGS 5%, calcium hydrogen phosphate 0.5%, calcium carbonate 0.3%, salt 0.5%, vitamin premix 0.1%, mineral premix 0.2%, slow-release urea 0.5%, bentonite 1%, compound probiotics 0.01%; Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS according to the ratio through a pulverizer, and sieve them through a 60-mesh sieve. Dilute molasses with warm water and stir until there is no crystallization. Dry the brewers' grains until the water content ≤ 8%; Step 2: Add the pulverized corn, soybean meal, rapeseed meal, germ meal, and corn DDGS to a double-shaft paddle mixer according to the ratio, start stirring and premix for 5 minutes, then add the dried brewers' grains and continue to mix for 10 minutes; Premix calcium hydrogen phosphate, calcium carbonate, salt, slow-release urea, and bentonite according to the ratio to obtain a mineral matrix. Spray the vitamin premix, mineral premix, and compound probiotics into the molasses dilution to obtain a functional package; Step 3: Transport the functional package to an extruder and perform extrusion treatment at 50°C. After extrusion, the material is pressed into 3-mm pellets by a granulator, and the surface of the pellets is sprayed with compound probiotics; Use a polylactic acid-polycaprolactone mixed film with a ratio of 3:1 to perform slow-release coating on the pellets to obtain coated pellets; Step 4: Cool the coated pellets to below 25°C in a countercurrent cooling tower, and after drying, the water content ≤ 5%. Finally, use a nitrogen replacement packaging machine for packaging to complete the preparation; Example 2: The concentrated feed supplement composition for breeding comprises the following components: Corn 60%, soybean meal 12.5%, rapeseed meal 6.5%, molasses 2.25%, brewers' grains 4.5%, germ meal 6%, corn DDGS 7.5%, calcium hydrogen phosphate 1.25%, calcium carbonate 0.75%, salt 0.75%, vitamin premix 0.2%, mineral premix 0.35%, slow-release urea 0.75%, bentonite 1.5%, compound probiotics 0.03%; Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS according to the ratio through a pulverizer, and sieve them through a 60-mesh sieve. Dilute molasses with warm water and stir until there is no crystallization. Dry the brewers' grains until the water content ≤ 8%; Step 2: Add the pulverized corn, soybean meal, rapeseed meal, germ meal, and corn DDGS to a double-shaft paddle mixer according to the ratio, start stirring and premix for 5 minutes, then add the dried brewers' grains and continue to mix for 10 minutes; Premix calcium hydrogen phosphate, calcium carbonate, salt, slow-release urea, and bentonite in proportion to obtain a mineral matrix. Spray vitamin premix, mineral premix, compound probiotics, and molasses diluent onto the mineral matrix to obtain a functional package. Step 3: Convey the functional package to an extruder and perform extrusion treatment at 50°C. The extruded material is pressed into 3-mm pellets by a granulator, and compound probiotics are sprayed on the surface of the pellets. Use a polylactic acid-polycaprolactone mixed film with a ratio of 3:1 to perform slow-release coating on the pellets to obtain coated pellets. Step 4: Cool the coated pellets to below 25°C in a countercurrent cooling tower. After drying, the water content is ≤5%. Finally, use a nitrogen replacement packaging machine for packaging to complete the preparation. Example 3: The concentrate supplement composition for breeding comprises the following components: 65% corn, 15% soybean meal, 8% rapeseed meal, 3% molasses, 6% brewer's grains, 8% germ meal, 10% corn DDGS, 1.5% calcium hydrogen phosphate, 1% calcium carbonate, 1% salt, 0.3% vitamin premix, 0.5% mineral premix, 1% slow-release urea, 2% bentonite, 0.05% compound probiotics Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS according to the ratio through a pulverizer and pass through a 60-mesh sieve. Dilute molasses with warm water and stir until there is no crystallization. Dry brewer's grains until the water content is ≤8%. Step 2: Add the pulverized corn, soybean meal, rapeseed meal, germ meal, and corn DDGS to a double-shaft paddle mixer according to the ratio, start stirring and premix for 5 minutes, add the dried brewer's grains, and continue mixing for 10 minutes. Premix calcium hydrogen phosphate, calcium carbonate, salt, slow-release urea, and bentonite in proportion to obtain a mineral matrix. Spray vitamin premix, mineral premix, compound probiotics, and molasses diluent onto the mineral matrix to obtain a functional package. Step 3: Convey the functional package to an extruder and perform extrusion treatment at 50°C. The extruded material is pressed into 3-mm pellets by a granulator, and compound probiotics are sprayed on the surface of the pellets. Use a polylactic acid-polycaprolactone mixed film with a ratio of 3:1 to perform slow-release coating on the pellets to obtain coated pellets. Step 4: Cool the coated pellets to below 25°C in a countercurrent cooling tower. After drying, the water content is ≤5%. Finally, use a nitrogen replacement packaging machine for packaging to complete the preparation.

[0026] Perform performance tests on the concentrate supplement for breeding prepared in the above examples. The test results are shown in the following table: Among them, Example 1, Example 2 and Example 3 are substantially the same, except that the concentrated feed supplements for breeding are different. Based on the comparison of Example 1, Example 2 and Example 3, the percentage range that can be satisfied by Example 2 can be obtained.

[0027] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of this template.

Claims

1. A concentrate supplement for breeding, characterized in that: The concentrate supplement composition for breeding comprises the following components: Corn 55% to 65%, soybean meal 10% to 15%, rapeseed meal 5% to 8%, molasses 1.5% to 3%, brewer's grains 3% to 6%, germ meal 4% to 8%, corn DDGS 5% to 10%, dicalcium phosphate 0.5% to 1.5%, calcium carbonate 0.3% to 1%, salt 0.5% to 1%, vitamin premix 0.1% to 0.3%, mineral premix 0.2% to 0.5%, slow-release urea 0.5% to 1%, bentonite 1% to 2%, and compound probiotics 0.01% to 0.05%.

2. The method for preparing a concentrated feed supplement for aquaculture according to claim 1, characterized in that: The following steps are involved: Step 1: Process corn, soybean meal, rapeseed meal, germ meal, and corn DDGS in a crusher according to the proportion, pass through a 60-mesh sieve, dilute molasses with warm water, stir until there is no crystallization, and dry the brewer's grains to a moisture content of ≤8%; Step 2: Add the crushed corn, soybean meal, rapeseed meal, germ meal, and corn DDGS into a double-shaft paddle mixer in proportion, start stirring and premixing for 5 minutes, add the dried brewer's grains, and continue mixing for 10 minutes; Premixing calcium hydrogen phosphate, calcium carbonate, salt, slow-release urea and bentonite in proportion to obtain a mineral matrix, spraying the vitamin premix, mineral premix, compound probiotics and molasses dilution into the mineral matrix to obtain a functional package; Step 3: The functional package is transported to the puffing machine and puffed at 50°C. The puffed material is pressed into 3mm particles by a granulator, and the surface of the particles is sprayed with compound probiotics; The particles are coated with a polylactic acid-polycaprolactone mixed film at a ratio of 3:1 to obtain coated particles; Step 4: The coated particles are cooled to below 25°C via a countercurrent cooling tower, and the moisture content is ≤5% after drying. Finally, the particles are packaged using a nitrogen displacement packaging machine to complete the preparation.

3. A concentrate supplement for aquaculture according to claim 1, characterized in that: The specific steps of step one also include the following: Real-time monitoring to obtain the ambient temperature T; According to the formula , calculate the ratio of molasses to water at the current temperature ; The mixing ratio of molasses and water is monitored in real time through the flow meter, and the ratio of molasses and water at the current temperature is Adjust it.

4. A concentrate supplement for aquaculture according to claim 1, characterized in that: The specific working steps of step 2 are as follows: During step two, the torque sensor, speed encoder and hyperspectral imager are installed; Torque acquisition per second , rotation speed a and material density E; According to the formula , calculate and obtain the torque , when the torque When the fluctuation is greater than 15%, the signal is transmitted to the inverter, triggering the inverter to adjust the speed to the range of 100-200rpm within 2 seconds.

5. A concentrate supplement for aquaculture according to claim 4, characterized in that: The specific working steps of step 2 also include the following: The coefficient of variation CV was calculated every 30 seconds by hyperspectral imaging; When CV is greater than 5%, the pneumatic blowing device is started and the blade speed is simultaneously adjusted to ±5rpm oscillation mode to enhance convection.

6. A concentrate supplement for aquaculture according to claim 1, characterized in that: The specific steps of step three include: The temperature T1 and the rotation speed N1 are obtained during the process of conveying the functional package to the puffing machine, puffing the material at 50°C, pressing the puffed material into 3 mm granules by a granulator, and spraying the composite probiotics on the surface of the granules; According to the formula , calculate the expansion degree ; If the gelatinization degree is greater than 90%, lower the temperature or increase the rotation speed; If the gelatinization degree is less than 85%, increase the temperature or reduce the speed.

7. The concentrate supplement for aquaculture according to claim 1, characterized in that: The specific steps of step three also include the following: In the process of using a polylactic acid-polycaprolactone mixed film with a ratio of 3:1 to coat the particles for sustained release, the viscosity K of the polylactic acid-polycaprolactone mixed solution is obtained; According to the formula , calculate and obtain the scraper angle , the scraper angle is driven by a servo motor, and the response time is ≤1 second.

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