High-protein straw composite feed and preparation method thereof
By preparing high-protein straw compound feed and combining it with high-protein mother liquor from deep processing of straw and grain, the problems of straw burning pollution and single feed nutrition have been solved, realizing resource utilization, improving breeding efficiency and food safety, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 河南瀚奇生物科技有限公司
- Filing Date
- 2026-04-27
- Publication Date
- 2026-06-05
AI Technical Summary
The existing farming model suffers from problems such as pollution from straw burning, monotonous feed nutrition, harmful residues in meat products, and waste of by-products from deep grain processing, leading to environmental pollution and food safety risks, and lacks efficient ways to utilize resources.
High-protein straw compound feed is used by combining straw with high-protein mother liquor from deep grain processing and adding natural additives to prepare high-protein straw pellets, forming a resource closed loop, replacing artificial additives and growth hormones, and meeting the needs of livestock and poultry farming.
It realizes the dual resource utilization of straw and high-protein mother liquor from deep grain processing, increases feed protein content, reduces harmful component residues, reduces environmental pollution, lowers costs, and meets the production needs of modern livestock and poultry farming.
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Abstract
Description
Technical Field
[0001] This invention belongs to the field of feed processing technology, specifically relating to a high-protein straw compound feed and its preparation method. Background Technology
[0002] In the traditional animal husbandry industry, crop straw and weeds are the main feed ingredients for livestock and poultry, with only small amounts of grain crops such as corn and soybeans supplemented during key stages such as fattening and breeding. This farming model not only achieves efficient resource utilization of agricultural straw but also possesses the advantages of being green and natural. However, with the rapid development of modern agricultural technology and the significant increase in grain crops, the sufficiency of grain supply has driven a fundamental transformation in the livestock and poultry farming industry. The farming model has gradually shifted from "straw as the main feed and grain as a supplement" to grain as the main feed, and has even given rise to high-efficiency feed models that add artificial additives and growth hormones to grain.
[0003] While efficient feed production models have significantly accelerated the reproduction and growth of livestock and poultry, meeting the growing market demand for meat products in the short term, they have also triggered a series of industrial, environmental, and livelihood problems. The excessive use of artificial additives and growth hormones has led to the long-term residue of harmful components in meat products, which, after being transmitted through the food chain, seriously endanger public health and become a prominent hidden danger in the field of food safety. Moreover, agricultural straw has completely lost its traditional feed value. Due to the lack of efficient resource utilization methods, farmers burn large amounts of straw for convenience, causing frequent smog and aggravated air pollution. This not only affects residents' daily lives but also seriously restricts the development of related industries such as industrial production and transportation, dragging down the overall progress of the national economy. Even with the government investing a lot of manpower and resources in regulating straw burning, it is still difficult to solve this problem at its root.
[0004] Meanwhile, the high-concentration protein mother liquor generated during the processing of corn, wheat, soybeans, and other grains in the deep processing industry is rich in natural nutrients such as proteins, amino acids, and minerals necessary for animal growth. If these byproducts are not utilized properly, they not only waste valuable nutritional resources but also increase the waste collection and treatment costs for enterprises. Therefore, solving the multiple problems of straw burning pollution, monotonous feed nutrition, harmful residues in meat products, and byproduct pollution has become a pressing technical challenge for the feed processing industry.
[0005] To address the above problems, this invention proposes a high-protein straw compound feed and its preparation method. Summary of the Invention
[0006] In view of the above-mentioned defects in the existing technology, the purpose of this invention is to provide a high-protein straw compound feed and its preparation method, so as to realize the dual resource utilization of straw and high-protein mother liquor from deep processing of grain.
[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A high-protein straw compound feed, by weight, comprises 25-50 parts straw and 50-75 parts high-protein mother liquor; the high-protein mother liquor is obtained through deep processing of grain, and the dry matter content of the high-protein mother liquor is ≥35% and the protein content is 23-25%.
[0008] Preferably, the high-protein straw also includes natural additives, and the amount of natural additives added is 0 to 2.0% of the total amount of high-protein straw compound feed.
[0009] Preferably, the natural additive includes a compound natural trace element premix, yeast culture, and natural magnesium oxide, wherein the mass ratio of the compound natural trace element premix, yeast culture, and natural magnesium oxide is 4~6:6~10:2~4.
[0010] Preferably, the straw is at least one of corn straw, wheat straw, rice straw, and peanut vines; The grains used in the high-protein mother liquor are specifically at least one of corn, wheat, and soybean.
[0011] A method for preparing a high-protein straw compound feed, characterized by comprising the following steps: S1. Pre-treat the straw by crushing it to 40-60 mesh; S2. Spray the high-protein mother liquor obtained from deep grain processing evenly onto the crushed straw to obtain high-protein straw. S3. The above-mentioned high-protein straw is dried and compressed into pellets to obtain high-protein straw feed pellets; the density of the high-protein straw pellets is 0.8~1.2 g / cm³. 3 ; S4. Repeat steps S1 to S3 to prepare various high-protein straw pellets from different types of straw. S5. Mix one or more types of high-protein straw pellets and natural additives evenly, then perform secondary crushing, granulation, and packaging to obtain high-protein straw compound feed.
[0012] Preferably, the mass ratio of straw to high-protein mother liquor in step S2 is 1:1~3.
[0013] Preferably, the water content of the high-protein protein in step S2 is <50%.
[0014] Preferably, the drying temperature in step S3 is 120~140℃.
[0015] Preferably, the pretreated high-protein straw compound feed is dried, then pulverized to 50-70 mesh before being granulated. The resulting feed pellets have a diameter of 2-8 mm and a length of 3-15 mm.
[0016] Preferably, the various high-protein straw particles mentioned in step S5 are corn high-protein straw and wheat high-protein straw in a mass ratio of 6~8:2~4; or corn high-protein straw and peanut high-protein straw in a mass ratio of 7~9:1~3; or corn high-protein straw, wheat high-protein straw and peanut high-protein straw in a mass ratio of 5~7:1.5~3:1.5~3.
[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention uses a high-protein mother liquor with a protein content of 23-25% to make up for the nutritional deficiencies of straw, and obtains a high-protein straw compound feed with a protein content of ≥16%. The daily weight gain and feeding cycle of calves, growing cattle and fattening cattle are basically the same as those of pure grain feed with a large amount of additives. This effectively solves the problems of single nutrition and low breeding efficiency of pure straw feed and meets the production needs of modern livestock and poultry breeding.
[0018] (2) This invention relies on the natural nutrients in the high-protein mother liquor to replace artificial additives and growth hormones. Natural additives account for only 0-2.0% of the total feed, which is 70-90% less than conventional pure grain feed. It can even be prepared without reducing breeding efficiency, thus avoiding the residue of harmful components in the animal body from the source and ensuring the safety of meat products.
[0019] (3) This invention can realize the dual resource utilization of agricultural straw and high protein mother liquor from deep processing of grain, reduce straw burning pollution and waste of by-products, and form a closed loop of resources; moreover, the raw materials are readily available, the process is simple, no special equipment is required, and it can be flexibly adapted to the needs of various livestock and poultry farming, greatly reducing feed costs. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic flowchart illustrating a method for preparing a high-protein straw compound feed according to an embodiment of the present invention. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.
[0023] To achieve the above-mentioned objectives of the present invention, the technical solution of the present invention will be further described in detail below, but the scope of protection of the present invention is not limited to the following description.
[0024] A high-protein straw compound feed, by weight, comprises 25-50 parts straw, 50-75 parts high-protein mother liquor from deep grain processing, and an additional 0-2.0% of natural additives by weight; wherein the mass ratio of the compound natural trace element premix, yeast culture, and natural magnesium oxide in the natural additives is 4-6:6-8:2-4.
[0025] The high-protein mother liquor has a protein content of 23-25% and a dry matter content of ≥35%.
[0026] A method for preparing a high-protein straw compound feed includes the following steps: S1. Pre-treat the straw by crushing it to 40-60 mesh; in some embodiments, corn straw is used, while in other embodiments, wheat straw, rice straw, or peanut vines are used. The purpose of crushing the straw to 40-60 mesh is to increase the specific surface area of the straw, so as to fully absorb the high-protein mother liquor, adapt to subsequent granulation, and improve digestibility and mixing uniformity.
[0027] S2. Spray the high-protein mother liquor obtained from deep grain processing evenly onto the crushed straw to obtain high-protein straw; the mass ratio of straw to high-protein mother liquor is 1:1~3; the moisture content of the pretreated high-protein straw is <50%; in some embodiments, the high-protein mother liquor is obtained from deep processing of corn; in other embodiments, the high-protein mother liquor is obtained from deep processing of wheat or soybean.
[0028] The purpose of controlling the protein content is to make up for the lack of protein in straw and ensure that the protein content of the finished feed is ≥16% to meet the growth needs of livestock and poultry. Too high a content will increase costs, while too low a content will result in insufficient nutritional supplementation. The purpose of controlling the moisture content of high-protein straw is to prevent the raw materials from becoming moldy and deteriorating, to ensure the pelleting effect, and to avoid the finished feed from having a shortened storage period and being prone to clumping due to excessive moisture content.
[0029] S3. The above-mentioned high-protein straw is dried and compressed at 120~140℃ to obtain high-protein straw pellets; the protein content of the high-protein straw pellets is ≥16%, and the density of the high-protein straw is 0.8~1.2 g / cm³. 3 ; Choose high-protein straw with a density of 0.8~1.2 g / cm³. 3 It has a density close to that of grains, while also taking into account the rumen fermentation needs of the coarse fiber in straw. The moderate density does not affect the activity of rumen microorganisms, and it can also prevent the feed from becoming too fluffy and losing its contents.
[0030] S4. Repeat steps S1 to S3 to prepare various high-protein straw pellets made from different types of straw; in some examples, wheat high-protein straw pellets and corn high-protein straw pellets are prepared; in other examples, corn high-protein straw pellets and peanut high-protein straw pellets are prepared; or corn high-protein straw pellets, wheat high-protein straw pellets and peanut high-protein straw pellets are prepared.
[0031] S5. Mix various high-protein straw granules and natural additives evenly, then perform secondary crushing, granulation, and packaging to obtain high-protein straw compound feed; the secondary crushing is to crush to 50-70 mesh, and the granulation specifications are 2-8 mm in diameter and 3-15 mm in length; in some embodiments, the various high-protein straws are a mixture of corn straw and wheat straw in a mass ratio of 7:3; in other embodiments, the various high-protein straws are a mixture of corn straw and peanut vines in a mass ratio of 8:2; or a mixture of corn straw, wheat straw, and peanut vines in a mass ratio of 5-7:1.5-3:1.5-3.
[0032] S6. Apply the above-mentioned high-protein straw compound feed to cattle (this invention takes cattle as an example). Select calves (110±5kg) and feed them different amounts of compound feed according to different stages until they reach the standard of slaughter cattle (>600kg). Calf stage: 3~7kg / head / day, growing cattle stage: 5.5~9.8kg / head / day, fattening cattle stage: 10~18kg / head / day.
[0033] The specific feeding method involves mixing high-protein straw compound feed with concentrate at a ratio of 7-9:1-3. 1) Calf stage (110~240kg): Mix high-protein straw compound feed with concentrate at a mass ratio of 7:3 and feed at a rate of 3~7kg / head / day; 2) Growing cattle period (241~420kg): Mix high-protein straw compound feed with concentrate at a mass ratio of 8:2 and feed at a rate of 5.5~9.8kg / head / day; 3) Fattening cattle period (421~600kg): Mix high-protein straw compound feed with concentrate feed at a mass ratio of 7:3 and feed at a rate of 10~18 kg / head / day.
[0034] Example 1 A high-protein straw compound feed, by weight, includes 33 parts corn straw, 67 parts corn deep-processed high-protein mother liquor, and an additional 1.5% of natural additives by weight; the mass ratio of compound natural trace element premix, yeast culture and natural magnesium oxide in the natural additives is 4:6:2.
[0035] The high-protein mother liquor has a protein content of 23% and a dry matter content of 35%.
[0036] A method for preparing a high-protein straw compound feed includes the following steps: S1. Crush the corn stalks to 40 mesh to obtain corn stalk powder; S2. Evenly spray the pulverized corn stalk powder with a high-protein mother liquor obtained from deep corn processing to obtain high-protein stalks with a dry matter content ≥35%, wherein the mass ratio of stalks to high-protein mother liquor is 1:2; and the moisture content of the high-protein stalks is 45%. S3. The above-mentioned high-protein corn straw is dried at 120℃ and compressed into pellets to obtain high-protein corn straw pellets with 18% protein content and 0.8g / cm³ density. S4. Repeat steps S1 to S3 to obtain high-protein wheat straw pellets; S5. Mix the above-mentioned high-protein corn straw pellets, high-protein wheat straw pellets and natural additives evenly, and then perform secondary crushing, granulation and packaging to obtain high-protein straw compound feed; the secondary crushing is passed through 60 mesh, and the pellet specifications are 5mm in diameter and 9mm in length; the mass ratio of the high-protein corn straw pellets to the high-protein wheat straw pellets is 7:3. S6. Apply the above-mentioned high-protein straw compound feed to cattle. Select calves (110±5kg) and feed them different amounts of compound feed according to different stages until they reach the standard of slaughter cattle (>600kg). Calf stage: 5kg / head / day, growing cattle stage: 9kg / head / day, fattening cattle stage: 15kg / head / day.
[0037] Example 2 A high-protein straw compound feed, by weight, includes 50 parts peanut vines, 50 parts soybean deep-processed high-protein mother liquor, and an additional 2.0% of natural additives by weight; the mass ratio of compound natural trace element premix, yeast culture and natural magnesium oxide in the natural additives is 6:10:4.
[0038] The high-protein mother liquor contains 25% protein and 40% dry matter.
[0039] A method for preparing a high-protein straw compound feed includes the following steps: S1. Crush peanut vines to 60 mesh to obtain peanut straw powder; S2. Evenly spray high-protein mother liquor obtained from deep processing of soybeans onto the crushed peanut straw powder to obtain peanut high-protein straw with a dry matter content ≥40%. The mass ratio of peanut straw powder to high-protein mother liquor is 1:1, and the moisture content of the peanut high-protein straw is 40%. S3. The above-mentioned high-protein peanut straw is dried at 130℃ and compressed into granules to obtain high-protein peanut straw granules with a protein content of 16% and a density of 1.0 g / cm³. S4. Repeat steps S1 to S3 to obtain corn stalk pellets; S5. Mix the above-mentioned peanut high-protein straw pellets, corn high-protein straw pellets and natural additives evenly, and then perform secondary crushing, granulation and packaging to obtain high-protein straw compound feed. The secondary crushing is passed through 70 mesh, the pellet diameter is 6 mm and the length is 12 mm; the mass ratio of corn high-protein straw pellets to peanut high-protein straw pellets is 8:2. S6. Apply the above-mentioned high-protein straw compound feed to cattle. Select calves (110±5kg) and feed them different amounts of compound feed according to different stages until they reach the standard of slaughter cattle (>600kg). Calf stage: 3kg / head / day, growing cattle stage: 5.5kg / head / day, fattening cattle stage: 10kg / head / day.
[0040] Example 3 A high-protein straw compound feed, by weight, includes 25 parts wheat straw, 75 parts wheat deep-processed high-protein mother liquor, and an additional 1.0% of natural additives by weight; the mass ratio of compound natural trace element premix, yeast culture and natural magnesium oxide in the natural additives is 5:8:3.
[0041] The high-protein mother liquor has a protein content of 24% and a dry matter content of 38%.
[0042] A method for preparing a high-protein straw compound feed includes the following steps: S1. Crush wheat straw to 50 mesh to obtain wheat straw powder; S2. Spray the high-protein mother liquor obtained from deep processing of wheat evenly onto the crushed wheat straw powder to obtain wheat high-protein straw with a dry matter content ≥38%, wherein the mass ratio of the wheat high-protein straw to the high-protein mother liquor is 1:3, and the moisture content of the wheat high-protein straw is 48%. S3. The above-mentioned high-protein wheat straw is dried at 140℃ and compressed into granules to obtain high-protein wheat straw pellets with a protein content of 19% and a density of 0.9g / cm³. S4. Repeat steps S1 to S3 to obtain corn high-protein straw pellets and peanut high-protein straw. S5. Mix the above-mentioned high-protein corn straw pellets, high-protein wheat straw pellets, high-protein peanut straw pellets, and natural additives evenly, and then perform secondary crushing, granulation, and packaging to obtain high-protein straw compound feed. The secondary crushing is to 50 mesh, and the pellet diameter is 7 mm and the length is 10 mm. The mass ratio of the high-protein corn straw pellets, high-protein wheat straw pellets, and high-protein peanut straw pellets is 6:2:2. S6. Apply the above-mentioned high-protein straw compound feed to cattle. Select calves (110±5kg) and feed them different amounts of compound feed according to different stages until they reach the standard of slaughter cattle (>600kg). Calf stage: 6kg / head / day, growing cattle stage: 9.8kg / head / day, fattening cattle stage: 18kg / head / day.
[0043] Example 4 A high-protein straw compound feed, by weight, comprises 40 parts corn straw and 60 parts corn deep-processing high-protein mother liquor.
[0044] The high-protein mother liquor has a protein content of 23% and a dry matter content of 35%.
[0045] A method for preparing a high-protein straw compound feed includes the following steps: S1. Crush the corn stalks to 40 mesh to obtain corn stalk powder; S2. Spray the pulverized corn stalk powder evenly with high-protein mother liquor obtained from deep processing of corn to obtain high-protein stalks with a dry matter content ≥35%. The high-protein mother liquor is concentrated. The mass ratio of stalks to high-protein mother liquor is 1:1.5. The moisture content of the high-protein stalks is 45%. S3. The above-mentioned high-protein corn straw is dried at 125℃ and compressed into pellets to obtain high-protein corn straw pellets with a protein content of 17% and a density of 0.8g / cm³. S4. Mix the above-mentioned high-protein corn straw pellets and natural additives evenly, and then perform secondary crushing, granulation, and packaging to obtain high-protein straw compound feed. The secondary crushing is passed through 60 mesh, the granulation diameter is 5mm, and the length is 9mm. The mass ratio of the high-protein corn straw pellets to the high-protein wheat straw pellets is 7:3. S5. Apply the above-mentioned high-protein straw compound feed to cattle. Select calves (110±5kg) and feed them different amounts of compound feed according to different stages until they reach the standard of slaughter cattle (>600kg). Calf stage: 4kg / head / day, growing cattle stage: 8kg / head / day, fattening cattle stage: 12kg / head / day.
[0046] Comparative Example 1 Compared with Example 1, no high-protein stock solution was added, but the other steps were completely the same as in Example 1.
[0047] Comparative Example 2 Compared with Example 1, a pure grain feed was prepared without using any straw raw materials. By weight, it includes 70 parts mixed feed, 30 parts conventional feed additives and growth hormones. The mixed feed is corn flour and soybean flour in a weight ratio of 1:1.
[0048] A method for preparing pure grain feed includes the following steps: S1. Grind corn and soybeans separately to 40 mesh to obtain mixed feed; S2. Add additives and growth hormones to the above mixed feed, stir evenly, and then add water to obtain a pretreated grain feed with a moisture content of 45%; the amount of additives and growth hormones used is 7% of the total amount of the mixed feed; S3. Compress and granulate the pretreated grain feed to obtain grain feed pellets with a density of 0.8 g / cm³, a diameter of 5 mm, and a length of 9 mm. S4. After drying the above-mentioned grain feed pellets, package them to obtain pure grain feed. S5. Apply the above-mentioned pure grain feed to cattle, with the same feeding amount as in Example 1: calves: 5 kg / head / day, growing cattle: 9 kg / head / day, fattening cattle: 15 kg / head / day.
[0049] Comparative Example 3 Compared with Comparative Example 2, only the feeding amount in step S5 was changed. The feeding amount was 80% of that in Comparative Example 2, namely: 4 kg / head / day for calves, 7.2 kg / head / day for growing cattle, and 12 kg / head / day for fattening cattle.
[0050] Comparative Example 4 Compared with Comparative Example 2, only the amount of additives and growth hormones in step S2 was changed, and the amount of additives and growth hormones was 3.5% of the total amount of the mixed feed.
[0051] Experimental methods: This experiment used calves (110±5kg) as the research subjects. Eighteen calves were selected and divided into six groups of three. Each group was fed the compound feed of Examples 1-4 of this invention and the ordinary feed of Comparative Examples 1-4, respectively. Feeding was conducted daily, and the initial average weight (kg), daily feed intake (kg / calves / day), average daily weight gain (kg / calves / day), and total feeding days were recorded. Specific data are shown in Table 1. The specific feeding methods are as follows: (1) During the calf stage (110~260kg): the ratio of high-protein straw compound feed to concentrate is 7:3, and each head is fed 3~7kg / day during this period; (2) During the growing cattle period (261~420kg): the ratio of high-protein straw compound feed to concentrate is 8:2, and each head is fed 5.5~9.8kg / day during this period; (3) During the fattening period (421~600kg): the ratio of high-protein straw compound feed to concentrate is 9:1, and each head is fed 10~18kg / day during this period.
[0052] To verify the effect of high-protein mother liquor on increasing feed protein content, Examples 1-4 with added high-protein mother liquor were compared with Comparative Example 1 without added high-protein mother liquor. As shown in Table 1, the high-protein straw compound feeds in Examples 1-4 all had a protein content ≥16%, effectively compensating for the nutritional deficiencies of pure straw feed; while Comparative Example 1, without added high-protein mother liquor, showed a significant drop in feed protein content. This result fully demonstrates that high-protein mother liquor is the core key to achieving high protein content in straw feed. Simultaneously, the average daily weight gain of Comparative Example 1 fed pure straw feed was significantly reduced, and the feeding period was significantly prolonged, comprehensively confirming that low protein content directly leads to a significant decrease in breeding efficiency.
[0053] To verify the technical advantages of this invention in significantly reducing the amount of feed additives used while ensuring breeding efficiency, the following analysis will focus on three core indicators: average daily weight gain (kg / head), feeding cycle (days), and additive usage (%). The high-protein straw compound feeds of Examples 1-4 will be compared with the conventional feeds of Comparative Examples 2-4: 1) Based on the daily weight gain data, the daily weight gain of the high-protein straw compound feed prepared by this invention (Examples 1-4) in the calf, growing cattle and fattening cattle periods is basically the same as that of pure grain feed with conventional additives and growth hormones (Comparative Examples 2-4), with no significant difference.
[0054] 2) In terms of the total number of feeding days, the feeding cycle of Examples 1-4 is 315-403 days, and the feeding cycle of Comparative Examples 2-4 is 315-512 days. There is no essential difference between the two, which proves that the high-protein straw compound feed of the present invention can ensure the core efficiency of livestock and poultry breeding and meet the production requirements of modern breeding without relying on a large number of additives and growth hormones.
[0055] 3) Conventional pure grain feed requires the addition of a large amount of feed additives and growth hormones to ensure breeding efficiency. However, the present invention uses high-protein mother liquor from deep processing of grain as the core nutritional supplement. It naturally enriches the nutrients required for animal growth, such as protein, amino acids, minerals, and vitamins, and can directly replace most additives and growth hormones. As can be seen from the data of Examples 1-4 and Comparative Examples 2-4, the feeding requirements can be met by adding a small amount of natural additives or even not adding any additives. The amount of natural additives used can be reduced by 70-90% compared with conventional feed.
[0056] This invention relates to a high-protein straw compound feed, which uses agricultural straw as the main ingredient and high-protein mother liquor from deep grain processing as the core nutritional supplement. Combined with straw compounding and optimization of natural additives, it exhibits significant advantages in multiple aspects. In terms of breeding efficiency, the protein content of the high-protein straw compound feed can reach over 16%, making up for the nutritional shortcomings of pure straw feed. The average daily weight gain at each stage of calf, growing, and fattening stages is basically the same as that of pure grain feed with a large amount of additives, with no significant difference in the feeding cycle. This effectively solves the problems of single-nutrient diet and low breeding efficiency associated with pure straw feed, while avoiding the drawbacks of pure grain feed such as high grain consumption, harmful residues, and environmental pollution, thus ensuring the production needs of modern livestock and poultry farming.
[0057] Finally, it should be noted that although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.
Claims
1. A high-protein straw compound feed, characterized in that, By weight, it includes 25-50 parts straw and 50-75 parts high-protein mother liquor; the high-protein mother liquor is obtained through deep processing of grain, and the dry matter content of the high-protein mother liquor is ≥35% and the protein content is 23-25%.
2. The high-protein straw compound feed according to claim 1, characterized in that, The high-protein straw also includes natural additives, and the amount of natural additives added is 0 to 2.0% of the total amount of high-protein straw compound feed.
3. The high-protein straw compound feed according to claim 2, characterized in that, The natural additives include a compound natural trace element premix, yeast culture, and natural magnesium oxide, wherein the mass ratio of the compound natural trace element premix, yeast culture, and natural magnesium oxide is 4~6:6~10:2~4.
4. The high-protein straw compound feed according to claim 2, characterized in that, The straw is at least one of corn straw, wheat straw, rice straw, and peanut vines; The grains used in the high-protein mother liquor are specifically at least one of corn, wheat, and soybean.
5. A method for preparing a high-protein straw compound feed, characterized in that, Includes the following steps: S1. Pre-treat the straw by crushing it to 40-60 mesh; S2. Spray the high-protein mother liquor obtained from deep grain processing evenly onto the crushed straw to obtain high-protein straw. S3. The above-mentioned high-protein straw is dried and compressed into pellets to obtain high-protein straw feed pellets; the density of the high-protein straw pellets is 0.8~1.2 g / cm³. 3 ; S4. Repeat steps S1 to S3 to prepare various high-protein straw pellets from different types of straw. S5. Mix one or more types of high-protein straw pellets and natural additives evenly, then perform secondary crushing, granulation, and packaging to obtain high-protein straw compound feed.
6. The method for preparing high-protein straw compound feed according to claim 5, characterized in that, In step S2, the mass ratio of straw to high-protein mother liquor is 1:1~3.
7. The method for preparing high-protein straw compound feed according to claim 6, characterized in that, The moisture content of the high-protein straw mentioned in step S2 is <50%.
8. The method for preparing high-protein straw compound feed according to claim 5, characterized in that, The drying temperature in step S3 is 120~140℃.
9. The method for preparing high-protein straw compound feed according to claim 8, characterized in that, The pretreated high-protein straw compound feed is dried, then pulverized to 50-70 mesh before being granulated. The resulting feed pellets have a diameter of 2-8 mm and a length of 3-15 mm.
10. The method for preparing high-protein straw compound feed according to claim 5, characterized in that, The various high-protein straw particles mentioned in step S5 are corn high-protein straw and wheat high-protein straw with a mass ratio of 6~8:2~4; or corn high-protein straw and peanut high-protein straw with a mass ratio of 7~9:1~3; or corn high-protein straw, wheat high-protein straw and peanut high-protein straw with a mass ratio of 5~7:1.5~3:1.5~3.