Beef cattle feed

Abstract

The invention relates to the field of feeds, in particular to a beef cattle feed. The invention provides beef cattle feed which comprises basic raw materials and raw material additives, and the basic raw materials comprise sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, pericarpium citri reticulatae, plant ash, baking soda and salt; the raw material additive is composed of plant exosomes and an NPN feed, and the plant exosomes are composed of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; the NPN feed is composed of biuret and ammonium carbonate. The beef cattle feed disclosed by the invention not only accords with green ecology, but also can improve the immunity and growth performance of beef cattle.

Description

Technical Field

[0001] The invention relates to the field of feed, and in particular to a beef cattle feed. Background Art

[0002] With the development of large-scale and intensive breeding industry in my country, the demand for feed resources has been in short supply, or even seriously insufficient. Sorghum, corn, bran, soybean meal, cottonseed meal, bone meal, etc. have always been the commonly used basic energy raw material feed sources. However, these feeds often have problems such as low digestibility and nutritional imbalance when used directly, which affects the growth performance and health status of cattle.

[0003] Cattle farming is one of the main sources of meat in my country. For a long time, people have often added antibiotics and antibacterial drugs to beef cattle feed to improve the immunity of beef cattle. The long-term use of antibiotics and antibacterial drugs to prevent beef cattle diseases has not only led to the emergence of a large number of drug-resistant bacteria and insect strains, but also caused chemical drug residues in beef and its products, which has caused great damage to public health and food safety, and is not in line with people's "high-quality, low-drug residue, green and pollution-free" food consumption trend.

[0004] Therefore, it is particularly important to provide a beef cattle feed that improves immunity and conforms to green ecology. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a beef cattle feed, which is both green and ecological and can improve the immunity of beef cattle.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides a beef cattle feed, wherein the beef cattle feed comprises a basic raw material and a raw material additive.

[0008] The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt;

[0009] The raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate.

[0010] Preferably, the mass ratio of the base raw material to the raw material additive is 100:1.5-2.1.

[0011] Preferably, the mass ratio of the plant exosomes to the NPN feed is 1.3-1.5:1.

[0012] Preferably, in terms of mass fractions, the basic raw materials include 22-30 parts of sorghum, 6-12 parts of carrots, 6-10 parts of sweet potatoes, 8-12 parts of rice bran, 1.5-2 parts of fish cakes, 0.5-1 parts of molasses, 1.2-1.5 parts of tangerine peel, 4-6 parts of wood ash, 1-2 parts of baking soda and 0.8-1.2 parts of salt.

[0013] Preferably, in terms of weight, the plant exosomes are composed of 3-5 parts of corn exosomes, 2-5 parts of soybean meal exosomes and 1-2 parts of cottonseed meal exosomes; and the NPN feed is composed of 0.1-0.3 parts of biuret and 0.3-0.5 parts of ammonium carbonate.

[0014] More preferably, the basic raw materials include, by weight, 30 parts of sorghum, 8 parts of carrots, 10 parts of sweet potatoes, 10 parts of rice bran, 2 parts of fish cakes, 0.5 parts of molasses, 1.2 parts of tangerine peel, 5 parts of wood ash, 1.5 parts of baking soda and 1 part of salt.

[0015] More preferably, the plant exosomes consist of 5 parts of corn exosomes, 3 parts of soybean meal exosomes and 2 parts of cottonseed meal exosomes; and the NPN feed consists of 0.2 parts of biuret and 0.3 parts of ammonium carbonate.

[0016] In a second aspect, the invention provides application of the beef cattle feed in beef cattle breeding.

[0017] A third aspect provides an application of a raw material additive in improving the immunity of beef cattle and / or improving the growth performance of beef cattle, wherein the raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate.

[0018] Preferably, in terms of weight, the plant exosomes consist of 3-5 parts of corn exosomes, 2-5 parts of soybean meal exosomes and 1-2 parts of cottonseed meal exosomes; and the NPN feed consists of 0.1-0.3 parts of biuret and 0.3-0.5 parts of ammonium carbonate.

[0019] More preferably, the plant exosomes consist of 5 parts of corn exosomes, 3 parts of soybean meal exosomes and 2 parts of cottonseed meal exosomes; and the NPN feed consists of 0.2 parts of biuret and 0.3 parts of ammonium carbonate.

[0020] In a fourth aspect, there is provided the use of the beef cattle feed of the present invention in improving the immunity of beef cattle and / or improving the growth performance of beef cattle.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) The present invention provides a new type of green ecological beef cattle feed formula, which improves the palatability, digestibility and nutrient absorption efficiency of the feed by screening raw materials, optimizing the raw material ratio and adding specific raw material additives, thereby promoting the healthy growth of beef cattle and improving breeding efficiency.

[0023] (2) The beef cattle feed provided by the present invention can improve immunity. On the one hand, vitamins, trace elements and amino acids are essential nutrients for synthesizing immune cells and maintaining their normal functions. By providing these nutrients, the proliferation and differentiation of immune cells can be promoted, thereby increasing the number and activity of immune cells. However, the directly added vitamins, trace elements and amino acids are affected by the digestive system of beef cattle, and their absorption and utilization rate may be limited. The directly added nutrients lack the bioactive molecules carried by exosomes, which play an important role in regulating cell functions and promoting cell-to-cell interactions. The nutrients in natural feed exist in a complex form and act synergistically with each other, and the directly added nutrients cannot completely simulate this synergistic effect. On the other hand, corn is the main energy source in beef cattle feed, rich in carbohydrates, and can provide the energy required for beef cattle growth; exosomes, as a communication tool between cells, carry bioactive molecules related to energy metabolism, immune regulation, etc.; corn exosomes may indirectly improve the immunity of beef cattle by regulating their energy metabolism and immune system. Soybean meal is a high-quality protein feed, rich in amino acids and minerals, and is essential for the growth and development of beef cattle and the improvement of meat quality; soybean meal exosomes carry bioactive molecules related to protein synthesis and immune response, which may directly improve the immunity of beef cattle by promoting protein synthesis and enhancing immune response; in addition, nutrients in soybean meal, such as phosphorus, potassium and other minerals and B vitamins, may also have a positive effect on the immune system of beef cattle. Cottonseed meal is rich in crude fiber, protein and minerals, and is an important component of beef cattle feed; cottonseed meal exosomes may carry bioactive molecules related to fiber digestion and mineral absorption, which may indirectly improve the immunity of beef cattle by improving their digestive function and mineral absorption.

[0024] (3) The application of corn exosomes, soybean meal exosomes, and cottonseed meal exosomes provided by the present invention in beef cattle feed has significant advantages over the direct addition of vitamins, trace elements, and amino acids. This is mainly attributed to the biological activity and functional characteristics of exosomes, such as intercellular communication, encapsulation of bioactive molecules, improving the utilization rate of nutrients, regulating the immune system, and promoting growth and development. Therefore, adding corn exosomes, soybean meal exosomes, and cottonseed meal exosomes to beef cattle feed is a more effective and comprehensive way of nutritional supplementation. The combination of plant exosomes and NPN feed of the present invention not only promotes the supplementation of protein, but also promotes the supplementation of vitamins and trace elements, and also supplements amino acids; there is no need to add additional vitamins, trace elements, and amino acids.

[0025] (4) The beef cattle feed provided by the present invention can improve growth performance. In terms of improving feed utilization, by adding plant exosomes to the basic raw materials of beef cattle, corn exosomes, soybean meal exosomes, and cottonseed meal exosomes are more likely to pass through the intestinal barrier and be absorbed and utilized by beef cattle due to their tiny size and specific surface characteristics. Corn exosomes, soybean meal exosomes, and cottonseed meal exosomes carry specific signal molecules, which bind to receptors in the animal body, thereby playing a more precise and efficient regulatory role. This targeted effect helps to reduce nutrient waste and improve feed utilization. In terms of promoting growth, on the one hand, a reasonable ratio of basic raw materials, plant exosomes and NPN feed and comprehensive nutritional support can help beef cattle grow rapidly. On the other hand, the growth factors and other growth-promoting substances carried in the plant exosomes of the present invention can stimulate the growth and development of beef cattle and improve the conversion efficiency of feed. In terms of detoxification, if the raw materials contain ingredients that are harmful to animals, the intake of these harmful substances can be reduced to a certain extent by extracting exosomes; because the exosomes mainly carry bioactive molecules that are beneficial to animals, while the harmful substances remain in the raw material residues. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below in conjunction with specific implementations and examples, and the advantages and various effects of the present invention will be more clearly presented. It should be understood by those skilled in the art that these specific implementations and examples are used to illustrate the present invention, rather than to limit the present invention.

[0027] In an embodiment of the present invention, the preparation method of corn exosomes is as follows:

[0028] ① Add 300 mL of sterilized PBS to 260 g of fresh corn and crush it with a crusher until a uniform slurry is formed; centrifuge the crushed slurry at 5°C, 3500×g for 30 min to remove larger residues and impurities, and take the white or milky solution in the middle layer;

[0029] ② Centrifuge the white or milky solution obtained in step ① at 5°C, 5000×g for 50 min and take the supernatant;

[0030] ③ The supernatant obtained in step ② was centrifuged at 5°C, 100,000×g for 60 min, and then the precipitate was resuspended in 3 mL of sterile PBS and centrifuged at 5°C, 120,000×g for 70 min, and the precipitate was resuspended in 3 mL of sterile PBS again to obtain corn exosomes.

[0031] In an embodiment of the present invention, the method for preparing soybean meal exosomes is as follows:

[0032] ① Add 350 mL of sterilized PBS to 300 g of fresh soybean meal and crush it with a crusher until a uniform slurry is formed; centrifuge the crushed slurry at 5°C, 3500×g for 45 min to remove larger residues and impurities, and take the yellow transparent solution in the middle layer;

[0033] ② Centrifuge the yellow transparent solution obtained in step ① at 5°C, 10,000×g for 50 min, and take the supernatant;

[0034] ③ The supernatant obtained in step ② was centrifuged at 5°C, 120,000×g for 65 min, and then the precipitate was resuspended in 3 mL of sterile PBS and centrifuged at 5°C, 150,000×g for 70 min, and the precipitate was resuspended in 3 mL of sterile PBS again to obtain soybean meal exosomes.

[0035] In an embodiment of the present invention, the method for preparing cottonseed meal exosomes is as follows:

[0036] ① Add 300 mL of sterilized PBS to 260 g of fresh cottonseed meal and crush it with a crusher until a uniform slurry is formed; centrifuge the crushed slurry at 5°C, 3000×g for 40 min to remove larger residues and impurities, and take the yellow or light yellow transparent solution in the middle layer;

[0037] ② Centrifuge the yellow or light yellow transparent solution obtained in step ① at 5°C, 10,000×g for 50 min, and take the supernatant;

[0038] ③ The supernatant obtained in step ② was centrifuged at 5°C, 100,000 × g for 55 min, and then the precipitate was resuspended in 3 mL of sterile PBS and centrifuged at 5°C, 120,000 × g for 65 min, and the precipitate was resuspended in 3 mL of sterile PBS again to obtain cottonseed meal exosomes.

[0039] Example 1

[0040] This embodiment provides a beef cattle feed, which includes a basic raw material and a raw material additive.

[0041] The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt;

[0042] The raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate;

[0043] The mass ratio of the base raw material to the raw material additive is 100:1.5;

[0044] The mass ratio of the plant exosomes to the NPN feed is 1.3:1;

[0045] According to the mass, the basic raw materials include 22kg sorghum, 6kg carrots, 6kg sweet potatoes, 8kg rice bran, 1.5kg fish cakes, 0.5kg molasses, 1.2kg tangerine peel, 4kg plant ash, 1kg baking soda and 0.8kg salt;

[0046] In terms of mass, the plant exosomes consist of 3 kg of corn exosomes, 2 kg of soybean meal exosomes and 1 kg of cottonseed meal exosomes; and the NPN feed consists of 0.1 kg of biuret and 0.3 kg of ammonium carbonate.

[0047] Example 2

[0048] This embodiment provides a beef cattle feed, which includes a basic raw material and a raw material additive.

[0049] The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt;

[0050] The raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate;

[0051] The mass ratio of the base raw material to the raw material additive is 100:2.1;

[0052] The mass ratio of the plant exosomes to the NPN feed is 1.5:1;

[0053] According to the mass, the basic raw materials include 30kg sorghum, 12kg carrots, 10kg sweet potatoes, 12kg rice bran, 2kg fish cakes, 1kg molasses, 1.5kg tangerine peel, 6kg wood ash, 2kg baking soda and 1.2kg salt;

[0054] In terms of mass, the plant exosomes consist of 5 kg corn exosomes, 5 kg soybean meal exosomes and 2 kg cottonseed meal exosomes; the NPN feed consists of 0.3 kg biuret and 0.5 kg ammonium carbonate.

[0055] Example 3

[0056] This embodiment provides a beef cattle feed, which includes a basic raw material and a raw material additive.

[0057] The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt;

[0058] The raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate;

[0059] The mass ratio of the base raw material to the raw material additive is 100:2;

[0060] The mass ratio of the plant exosomes to the NPN feed is 1.4:1;

[0061] In terms of mass, the basic raw materials include 30 kg sorghum, 8 kg carrots, 10 kg sweet potatoes, 10 kg rice bran, 2 kg fish cakes, 0.5 kg molasses, 1.2 kg tangerine peel, 5 kg wood ash, 1.5 kg baking soda and 1 kg salt.

[0062] In terms of mass, the plant exosomes consist of 5 kg corn exosomes, 3 kg soybean meal exosomes and 2 kg cottonseed meal exosomes; the NPN feed consists of 0.2 kg biuret and 0.3 kg ammonium carbonate.

[0063] Comparative Example 1

[0064] This comparative example provides a beef cattle feed, which comprises a basic raw material and a raw material additive.

[0065] The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt;

[0066] The raw material additives are composed of plant exosomes and NPN feed, wherein the plant exosomes are composed of corn exosomes, soybean meal exosomes and cottonseed meal; and the NPN feed is composed of biuret and ammonium carbonate;

[0067] The mass ratio of the base raw material to the raw material additive is 100:2;

[0068] The mass ratio of the plant exosomes to the NPN feed is 1.4:1;

[0069] In terms of mass, the basic raw materials include 30 kg sorghum, 8 kg carrots, 10 kg sweet potatoes, 10 kg rice bran, 2 kg fish cakes, 0.5 kg molasses, 1.2 kg tangerine peel, 5 kg wood ash, 1.5 kg baking soda and 1 kg salt.

[0070] In terms of mass, the plant exosomes consist of 5 kg corn exosomes, 3 kg soybean meal exosomes and 2 kg cottonseed meal exosomes; the NPN feed consists of 0.2 kg biuret and 0.3 kg ammonium carbonate.

[0071] Comparative Example 2

[0072] This comparative example provides a beef cattle feed, which comprises a basic raw material and a raw material additive.

[0073] The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt;

[0074] The raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate;

[0075] The mass ratio of the base raw material to the raw material additive is 100:2;

[0076] The mass ratio of the plant exosomes to the NPN feed is 1.2:1;

[0077] In terms of mass, the basic raw materials include 30 kg sorghum, 8 kg carrots, 10 kg sweet potatoes, 10 kg rice bran, 2 kg fish cakes, 0.5 kg molasses, 1.2 kg tangerine peel, 5 kg wood ash, 1.5 kg baking soda and 1 kg salt.

[0078] In terms of mass, the plant exosomes consist of 5 kg corn exosomes, 3 kg soybean meal exosomes and 2 kg cottonseed meal exosomes; the NPN feed consists of 0.2 kg biuret and 0.3 kg ammonium carbonate.

[0079] Experiment 1: Immunity Experiment

[0080] Test samples: beef cattle feed provided by Example 1, Example 3 and Comparative Example 1 of the present invention.

[0081] Experimental method: 150 Simmental fattening bulls with good health and similar weight were selected and randomly divided into three groups. Feeding was allowed three times a day at 8:30 am, 12:30 pm and 16:30 pm. The experiment lasted for 30 days.

[0082] Before the experiment, the cattle were weighed on an empty stomach. During the experiment, the cattle's daily feed intake and diarrhea were observed and recorded. After 30 days, the cattle were weighed on an empty stomach and the average daily weight gain and feed-to-weight ratio were calculated. After the feeding experiment, blood was collected for immune index analysis, and the correlation between each immune index and immunity was analyzed based on the results. The results are shown in Table 1 below.

[0083] Table 1 Effects of different feeds on the immunity of beef cattle

[0084] index Example 1 Example 3 Comparative Example 1 IgG (ng / mL) 172.11±2.49 183.13±2.49 151.32±2.67 IgA (μg / mL) 8.30±2.21 9.87±1.00 5.62±1.41 IgM (μg / mL) 37.82±2.17 39.93±1.20 30.23±2.53

[0085] From Table 1, we can see that:

[0086] Compared with the beef cattle feed provided in Comparative Example 1, the beef cattle feed provided in Examples 1 and 3 of the present invention can significantly increase the IgG, IgA and IgM contents in the serum of fattening bulls; and the increasing effect of the beef cattle feed provided in Example 3 of the present invention is more significant; indicating that the beef cattle feed of the present invention can improve the immunity of beef cattle.

[0087] In addition, the present invention adopts the same method to feed fattening bulls with the beef cattle feed provided by Example 2 and Comparative Example 2 respectively. The results show that the feeding effect and the effect of improving immunity of Example 2 are equivalent to those of Example 1, and the feeding effect and the effect of improving immunity of Comparative Example 2 are equivalent to those of Comparative Example 1.

[0088] It can be seen from the immunity experiment that the beef cattle feed formula obtained by screening raw materials, optimizing raw material ratios and adding specific raw material additives has the effect of improving immunity. Vitamins, trace elements and amino acids are nutrients necessary for synthesizing immune cells and maintaining their normal functions. By providing these nutrients, the proliferation and differentiation of immune cells can be promoted, thereby increasing the number and activity of immune cells. However, the directly added vitamins, trace elements and amino acids are affected by the digestive system of beef cattle, and their absorption and utilization rate may be limited. The directly added nutrients lack the bioactive molecules carried by exosomes, which play an important role in regulating cell function and promoting cell-to-cell interactions. The nutrients in natural feed exist in a complex form and synergize with each other, and the directly added nutrients cannot fully simulate this synergy. The inventors have confirmed that plant exosomes carry bioactive molecules related to energy metabolism and immune regulation, thereby participating in immune regulation. Specifically, corn exosomes may indirectly improve the immunity of beef cattle by regulating their energy metabolism and immune system; soybean meal exosomes carry bioactive molecules related to protein synthesis, immune response, etc., which may directly improve the immunity of beef cattle by promoting protein synthesis and enhancing immune response; cottonseed meal exosomes may carry bioactive molecules related to fiber digestion, mineral absorption, etc., which may indirectly improve the immunity of beef cattle by improving their digestive function and mineral absorption.

[0089] Experiment 2: Growth performance experiment

[0090] Test samples: beef cattle feed provided by Example 1, Example 3 and Comparative Example 1 of the present invention.

[0091] Experimental method: 150 Simmental fattening bulls with good health and similar weight were selected and randomly divided into three groups. Feeding was allowed three times a day at 8:30 am, 12:30 pm and 16:30 pm. The experiment lasted for 30 days.

[0092] The cattle were weighed on an empty stomach before the start of the experiment. During the experiment, the daily feed intake and diarrhea of ​​the cattle were observed and recorded. After 30 days, the cattle were weighed on an empty stomach and the average daily weight gain and feed-to-weight ratio were calculated. After the feeding experiment, the correlation between each metabolic index and growth performance was analyzed. The results are shown in Table 2 below.

[0093] Table 2 Effects of different feeds on growth performance of beef cattle

[0094]

[0095]

[0096] From Table 2, we can see that:

[0097] Compared with the beef cattle feed provided in comparative example 1, the beef cattle feed provided in examples 1 and 3 of the present invention can significantly improve the growth performance of fattening bulls; the feeding effect and the effect of reducing diarrhea rate in examples 1 and 3 are better than those in comparative example 1, among which the effect of example 3 is the best.

[0098] In addition, the present invention adopts the same method to feed fattening bulls with the beef cattle feed provided by Example 2 and Comparative Example 2, respectively. The results show that the feeding effect and the effect of reducing the diarrhea rate of Example 2 are equivalent to those of Example 1, and the feeding effect and the effect of reducing the diarrhea rate of Comparative Example 2 are equivalent to those of Comparative Example 1.

[0099] It can be seen from the growth performance experiment that the beef cattle feed formula obtained by screening raw materials, optimizing raw material ratios and adding specific raw material additives in the present invention has the effect of improving growth performance. Specifically, in terms of improving feed utilization, by adding plant exosomes to the basic raw materials of beef cattle, corn exosomes, soybean meal exosomes, and cottonseed meal exosomes are more likely to pass through the intestinal barrier due to their tiny size and specific surface properties, and be absorbed and utilized by beef cattle. Corn exosomes, soybean meal exosomes, and cottonseed meal exosomes carry specific signal molecules, which bind to receptors in the animal body, thereby playing a more precise and efficient regulatory role. This targeting effect helps to reduce the waste of nutrients and improve the utilization of feed. In terms of promoting growth, on the one hand, the reasonable ratio of basic raw materials, plant exosomes and NPN feed and comprehensive nutritional support help beef cattle grow rapidly. On the other hand, the growth-promoting substances such as growth factors carried in the plant exosomes of the present invention can stimulate the growth and development of beef cattle and improve the conversion efficiency of feed. In terms of detoxification, if the raw materials contain ingredients that are harmful to animals, the intake of these harmful substances can be reduced to a certain extent by extracting exosomes; because exosomes mainly carry bioactive molecules that are beneficial to animals, while harmful substances remain in the raw material residues.

[0100] The application of corn exosomes, soybean meal exosomes, and cottonseed meal exosomes provided by the present invention in beef cattle feed has significant advantages over the direct addition of vitamins, trace elements, and amino acids. This is mainly attributed to the biological activity and functional characteristics of exosomes, such as intercellular communication, encapsulation of bioactive molecules, improving the utilization rate of nutrients, regulating the immune system, and promoting growth and development. Therefore, adding corn exosomes, soybean meal exosomes, and cottonseed meal exosomes to beef cattle feed is a more effective and comprehensive way of nutritional supplementation. The combination of plant exosomes and NPN feed of the present invention not only promotes the supplementation of protein, but also promotes the supplementation of vitamins and trace elements, and also supplements amino acids; there is no need to add additional vitamins, trace elements, and amino acids.

[0101] It can be seen from Experiments 1 and 2 that the beef cattle feed provided by the present invention is a whole, and the various raw materials in the beef cattle feed support each other functionally and have an interactive relationship. It is precisely because the various raw materials support each other functionally and have an interactive relationship that the present invention has the technical effect of improving immunity and improving growth performance.

[0102] It should be understood that the disclosed invention is not limited only to the specific method, scheme and material of description, because these all can change.It should also be understood that the terminology used herein is only for the purpose of describing specific embodiment scheme, rather than being intended to limit the scope of the present invention, and the scope of the present invention is only limited to the appended claims.

[0103] Those skilled in the art will also recognize, or be able to ascertain, using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Such equivalents are also included in the appended claims. It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

[0104] Although the optional embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including optional embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0105] The technical solution provided by the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. At the same time, for those skilled in the art, according to the principle and implementation mode of the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A beef cattle feed, characterized in that: The beef cattle feed comprises basic raw materials and raw material additives, The basic raw materials include sorghum, carrots, sweet potatoes, rice bran, fish cakes, molasses, tangerine peel, wood ash, baking soda and salt; The raw material additive consists of plant exosomes and NPN feed, wherein the plant exosomes consist of corn exosomes, soybean meal exosomes and cottonseed meal exosomes; and the NPN feed consists of biuret and ammonium carbonate.

2. The beef cattle feed according to claim 1, characterized in that: The mass ratio of the basic raw material to the raw material additive is 100:1.5-2.

1.

3. The beef cattle feed according to claim 1, characterized in that: The mass ratio of the plant exosomes to the NPN feed is 1.3-1.5:

1.

4. The beef cattle feed according to claim 1, characterized in that: Calculated by weight, the basic raw materials include 22-30 parts of sorghum, 6-12 parts of carrots, 6-10 parts of sweet potatoes, 8-12 parts of rice bran, 1.5-2 parts of fish cakes, 0.5-1 parts of molasses, 1.2-1.5 parts of tangerine peel, 4-6 parts of wood ash, 1-2 parts of baking soda and 0.8-1.2 parts of salt.

5. The beef cattle feed according to claim 1, characterized in that: In terms of weight, the plant exosomes are composed of 3-5 parts of corn exosomes, 2-5 parts of soybean meal exosomes and 1-2 parts of cottonseed meal exosomes; the NPN feed is composed of 0.1-0.3 parts of biuret and 0.3-0.5 parts of ammonium carbonate.

6. The beef cattle feed according to claim 4, characterized in that: Calculated by weight, the basic raw materials include 30 parts of sorghum, 8 parts of carrots, 10 parts of sweet potatoes, 10 parts of rice bran, 2 parts of fish cakes, 0.5 parts of molasses, 1.2 parts of tangerine peel, 5 parts of wood ash, 1.5 parts of baking soda and 1 part of salt.

7. The beef cattle feed according to claim 5, characterized in that: In terms of weight, the plant exosomes consist of 5 parts of corn exosomes, 3 parts of soybean meal exosomes and 2 parts of cottonseed meal exosomes; the NPN feed consists of 0.2 parts of biuret and 0.3 parts of ammonium carbonate.

8. Use of the beef cattle feed according to any one of claims 1 to 7 in beef cattle breeding.

9. Use of the beef cattle feed according to any one of claims 1 to 7 in improving the immunity of beef cattle and / or improving the growth performance of beef cattle.

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