Animal feed additive

Abstract

The invention discloses an animal feed additive which is prepared from the following components in parts by weight: 20-30 parts of a green tea extract, 15-25 parts of a hawthorn extract, 10-25 parts of cactus thorn powder, 5-10 parts of garlic powder, 3-5 parts of an echinacea extract, 5-10 parts of a yeast extract, 10-15 parts of glucose and 10-50 parts of a carrier. The green tea extract, the hawthorn extract, the garlic powder, the echinacea purpurea extract and the yeast extract are scientifically proportioned, and the natural components have a synergistic effect, so that the immunity and disease resistance of animals can be remarkably improved, the occurrence of diseases is reduced, the use of antibiotics is reduced, and the health of the animals is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of animal health care, and in particular relates to an animal feed additive. Background Art

[0002] In the animal husbandry industry, as consumers' requirements for food safety and quality continue to increase, green, healthy and sustainable farming methods have gradually become an industry trend. Although antibiotics commonly used in traditional feed can effectively promote animal growth and prevent diseases, long-term use can easily lead to the production of drug-resistant bacteria, posing a potential threat to food safety and human health. Therefore, the development of antibiotic-free, efficient and safe feed additives has become a research hotspot.

[0003] Therefore, there is an urgent need for an animal feed additive that can optimize feed ingredients, reduce the use of antibiotics, enhance animals' immunity and disease resistance, and improve breeding efficiency and food safety.

[0004] Tea polyphenols in green tea extract are natural antioxidants and antibacterial agents with significant antibacterial, anti-inflammatory, anti-tumor and anti-cancer functions. Studies have shown that tea polyphenols can inhibit the growth of a variety of bacteria, while promoting the proliferation of beneficial bacteria in the intestines such as bifidobacteria and lactic acid bacteria, optimizing the intestinal microbial structure and improving the intestinal environment. In addition, tea polyphenols can also regulate the immune function of animals, enhance the secretion of antibodies by lymphocytes, and increase the activity of natural killer cells and complement, thereby enhancing the body's specific and nonspecific immunity.

[0005] Hawthorn extract is known for its digestive and immune-boosting properties. Unlike antibiotics, hawthorn extract does not induce the production of drug-resistant bacteria and can effectively improve the digestive capacity and overall health of animals.

[0006] Edible cactus is very nutritious and has high nutritional value, but the thorns growing on its leaf-like stems are removed and discarded, and the ingredients such as cactus glycosides contained in them are wasted.

[0007] The combination of green tea extract, hawthorn extract and cactus thorns in animal immune-enhancing feed additives not only conforms to the green, healthy and sustainable development concept of modern animal husbandry, but also provides strong support for ensuring human food safety and health. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a feed additive. The additive uses green tea and hawthorn extracts as core ingredients, combined with other natural plant extracts and nutrients, and through scientific and reasonable proportions and preparation processes, effectively enhances the immunity of animals, promotes the healthy growth of animals, and reduces the use of antibiotics, meeting the needs of modern breeding industry for green and safe feed additives.

[0009] To achieve the above object, the technical solution of the present invention is:

[0010] The invention provides an animal feed additive, which consists of the following components in parts by weight: 20-30 parts of green tea extract, 15-25 parts of hawthorn extract, 10-25 parts of cactus thorn powder, 5-10 parts of garlic powder, 3-5 parts of echinacea extract, 5-10 parts of yeast extract, 10-15 parts of glucose and 10-50 parts of a carrier.

[0011] Preferably, the carrier comprises wheat bran and / or starch.

[0012] Preferably, the preparation steps of the animal feed additive include:

[0013] S1. Raw material preparation and pretreatment;

[0014] S2, preparation of green tea extract and hawthorn extract;

[0015] S3, raw material mixing, after accurately weighing the raw materials according to the ratio, fully and evenly mix them with the carrier material to ensure that the distribution of each component is consistent;

[0016] S4, drying and granulation, drying the uniformly mixed materials to remove excess water, and then forming granules through a granulator.

[0017] Preferably, in step S1, the dried green tea, hawthorn and cactus thorn are crushed by a grinder, the green tea powder is sieved to 80 mesh, the hawthorn powder is sieved to 40 mesh, and the cactus thorn powder is sieved to 40 mesh.

[0018] Preferably, in step S2:

[0019] Green tea extract is extracted from green tea powder using supercritical CO2 extraction technology;

[0020] The hawthorn extract was extracted from the hawthorn powder by multiple cyclic extraction method.

[0021] Preferably, the method for extracting green tea extract includes: setting the extraction conditions to a pressure of 20-40 MPa and a temperature of 40-60°C, loading green tea powder into a supercritical extraction kettle, adjusting the supercritical CO2 flow rate to perform extraction operation, collecting the extract, purifying, concentrating, and drying to obtain green tea extract.

[0022] Preferably, before adding the green tea powder into the supercritical extraction kettle, a set amount of entrainer is added into the extraction kettle;

[0023] Preferably, the entrainer is ethanol.

[0024] Preferably, the method for extracting hawthorn extract comprises: mixing hawthorn powder and water in a ratio of 1:5-1:20, heating to boiling and maintaining for a period of time for initial extraction, then filtering to separate the extract and the residue, repeatedly extracting the residue multiple times, combining the extracts, purifying, concentrating and drying to obtain the hawthorn extract.

[0025] Preferably, in step S4: the drying temperature is 60-80°C, and the material is dried to a moisture content of ≤5%.

[0026] Preferably, the amount of the animal feed additive added to the feed is 1-25% of the total weight of the feed.

[0027] After adopting the above technical scheme, the animal feed additive provided by the present invention has the following beneficial effects compared with the prior art.

[0028] 1. Enhance animal immunity: Through the scientific ratio of green tea extract, hawthorn extract, cactus thorn, garlic powder, echinacea extract and yeast extract, these natural ingredients work synergistically to significantly improve the immunity and disease resistance of animals, reduce the occurrence of diseases, reduce the use of antibiotics, and ensure animal health.

[0029] 2. Improve feed utilization: Hawthorn extract has the effect of promoting digestion, which can improve the intestinal environment of animals and increase the digestion and absorption rate of feed, thereby increasing the growth rate and weight of animals and improving breeding efficiency.

[0030] 3. Green, safe and residue-free: Using natural plant extracts as the main ingredients avoids the chemical residues and antibiotic resistance problems that may exist in traditional feed additives, ensuring that the feed is green, safe and pollution-free, and meets the requirements of sustainable development of modern animal husbandry.

[0031] 4. Advanced technology and stable quality: The use of advanced technology such as supercritical CO2 extraction technology to extract green tea and hawthorn extracts can maximize the retention of effective ingredients in the raw materials while reducing the residue of impurities and harmful substances, ensuring the quality stability and high efficiency of feed additives. In addition, by precisely controlling the process parameters of each step, such as drying temperature, grinding fineness, etc., the stability and consistency of the product are further guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0033] Figure 1 It is a flow chart of the preparation steps of the animal feed additive of the present invention.

[0034] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0036] [Example 1]

[0037] This embodiment provides an animal feed additive, which is composed of the following components in parts by weight:

[0038] Green tea extract 20-30 parts;

[0039] 15-25 parts of hawthorn extract;

[0040] 10-25 parts of cactus thorn powder;

[0041] 5-10 parts garlic powder;

[0042] 3-5 parts of Echinacea extract;

[0043] Yeast extract 5-10 parts;

[0044] Glucose 10-15 parts;

[0045] 10-50 copies of carrier.

[0046] Among them, green tea is rich in active ingredients such as tea polyphenols and catechins, and has significant antioxidant, antibacterial and antiviral effects, which can enhance the body's immune function and improve disease resistance. In addition, green tea can promote fat metabolism and improve meat quality. Hawthorn extract is rich in flavonoids, organic acids, vitamin C, etc., and has the effects of digestion, qi and blood stasis, antioxidant and immunity enhancement. Hawthorn extract can also promote animal digestion, improve feed conversion rate and promote animal growth. Substances such as cactus glycosides in cactus thorn powder have the effects of preventing animal diseases, improving immunity and animal production performance, and its rich plant fiber can promote animal digestion. Garlic powder has natural antibacterial effects and enhances immunity. Echinacea extract can enhance the activity of immune cells and improve disease resistance. Yeast extract can provide rich B vitamins and trace elements to promote intestinal health. Glucose can provide energy and promote digestion and absorption.

[0047] Wherein, the carrier is preferably wheat bran and / or starch, which not only serve as fillers to increase the volume of feed additives, but also provide animals with a certain source of dietary fiber and energy.

[0048] The amount of the animal feed additive provided in this embodiment to be added to the feed is 1-25% of the total weight of the feed. The additive can significantly enhance the immunity of animals, promote the healthy growth of animals, and reduce the use of antibiotics to ensure food safety. The use of natural plant extracts as the main ingredients avoids the problems of chemical residues and antibiotic resistance that may exist in traditional feed additives, and the waste of cactus thorns is utilized to ensure that the feed is green, safe, and pollution-free, which meets the requirements of sustainable development of modern animal husbandry.

[0049] [Example 2]

[0050] like Figure 1 As shown, this embodiment provides a method for preparing the above-mentioned animal feed additive, which mainly includes the following steps:

[0051] S1. Raw material preparation and pretreatment

[0052] First, the raw materials such as green tea, hawthorn, and cactus thorns are cleaned to remove dust and impurities on the surface. Then, the raw materials are dried to remove excess moisture and prevent mold during subsequent processing.

[0053] The dried raw materials are crushed by a pulverizer, the green tea powder is sieved to 80 mesh to ensure its good solubility and bioavailability; the hawthorn powder is sieved to 40 mesh to facilitate subsequent extraction operations; and the cactus thorn powder is sieved to 40 mesh.

[0054] S2. Preparation of green tea extract and hawthorn extract

[0055] Preparation of green tea extract: Supercritical CO2 extraction technology is used. First, a set amount of entrainer such as ethanol is added to the supercritical extraction kettle to enhance the supercritical CO2's ability to dissolve the active ingredients in green tea. Then, the green tea powder is loaded into the extraction kettle, and the extraction conditions are set to a pressure of 20-40MPa and a temperature of 40-60°C. The supercritical CO2 flow rate is adjusted to perform the extraction operation. After the extraction is completed, the extract is collected and purified, concentrated, dried, and other processes are performed to finally obtain the green tea extract.

[0056] Preparation of hawthorn extract: Multiple cyclic extraction method is used. Hawthorn powder and water are mixed in a ratio of 1:5-1:20 and heated to boiling, and kept for a period of time for the initial extraction. During the extraction process, stirring and temperature control are used to ensure the extraction effect. After the initial extraction, the extract and the residue are separated by filtration. Subsequently, the residue is repeatedly extracted several times to make full use of the effective ingredients therein. Finally, the extracts from each time are combined, purified, concentrated, dried and other processes to obtain hawthorn extract.

[0057] S3, raw material mixing

[0058] The prepared green tea extract, hawthorn extract, cactus thorn powder, garlic powder, echinacea extract, yeast extract and glucose are accurately weighed according to the proportion and fully mixed with the carrier material. Appropriate stirring equipment and process parameters are used during the mixing process to ensure that the distribution of each component is uniform and there is no agglomeration.

[0059] S4. Drying and granulation

[0060] The mixed materials are dried to remove excess moisture and prevent mildew during storage and use. The drying temperature is controlled between 60-80℃ to ensure that the materials are heated evenly and the active ingredients are not destroyed due to excessive temperature. After drying to a moisture content of ≤5%, the materials are made into granules of appropriate size by a granulator. During the granulation process, an appropriate amount of adhesive or lubricant can be added as needed to improve the formability and fluidity of the granules.

[0061] [Example 3]

[0062] This embodiment provides a specific example of applying the above-mentioned animal feed additive to pig feed.

[0063] Raw material ratio: 25 parts of green tea extract, 20 parts of hawthorn extract, 15 parts of cactus thorn powder, 8 parts of garlic powder, 4 parts of echinacea extract, 7 parts of yeast extract, 12 parts of glucose, and 24 parts of carrier (wheat bran).

[0064] Preparation steps: operate according to steps S1 to S4 in Example 2. In the preparation of green tea extract, the extraction conditions are set to a pressure of 30 MPa, a temperature of 50°C, and a supercritical CO2 flow rate of 20 L / min; the preparation of hawthorn extract adopts a water-powder ratio of 1:10 for multiple cycles of extraction; the drying temperature is controlled to 70°C during drying and granulation, and the dried material is fed into a granulator, and granules with a particle size of 2-4 mm are made by extrusion and cutting, and finally a granular feed additive is obtained.

[0065] Experimental method: Three groups of healthy pigs with similar weight and genetic background (Sanyuan pigs) were selected as blank group, experimental group and control group respectively. Each group of experimental pigs had 30 pigs, all of which were 3 months old. Ensure that the three groups of pigs were raised in the same environment and stocking density (0.3m 2 The pigs were fed for 60 days under the following conditions: the quality of water source, the type of basic feed, etc. The blank group was fed with basic feed, the experimental group was fed with feed supplemented with 10% feed additives, and the control group was fed with feed supplemented with commonly used antibiotics (Olaco 950mg / kg). The pigs were fed at regular intervals and quantitatively every day, and the feed consumption was recorded. The health status of the pigs was observed every day, and the occurrence of diseases was recorded.

[0066] Data collection and analysis: Before and after the experiment, the weight of the pigs was measured and the average daily weight gain was calculated. The incidence of diseases in the three groups of pigs during the experiment was counted, the relationship between feed consumption and pig weight gain was analyzed, and the feed conversion rate was calculated. It should be noted that diseases that occurred at least one week after the experiment were statistically significant, so diseases that occurred within the first week of the experiment were not counted. In order to avoid the same pig getting sick multiple times and affecting subsequent feeding data, sick pigs were isolated and treated after they were found, and no subsequent experiments were conducted on sick pigs. The experimental results are shown in Table 1.

[0067] Table 1 Experimental data on the application of animal feed additives in pig feed

[0068]

[0069] in conclusion:

[0070] In the 60-day control experiment, the blank group pigs suffered from the disease a total of 2 times (both were influenza A), while the experimental group and the control group suffered from the disease 0 times, indicating that feed additives and antibiotics can also effectively improve the immunity and disease resistance of pigs.

[0071] The average daily weight gain of pigs in the experimental group increased by about 12.20% ((1076-959) / 959*100%) compared with the control group, and increased by about 10.81% ((1076-971) / 971*100%) compared with the blank group, indicating that feed additives have a significant promoting effect on the growth of pigs.

[0072] Although the feed consumption of the experimental group pigs was slightly higher than that of the blank group and the control group, their feed conversion rate (the amount of feed required per unit weight gain) was lower due to their faster growth rate, indicating that the feed additive improved the efficiency of feed utilization.

[0073] [Example 4]

[0074] This embodiment provides a specific example of applying the above-mentioned animal feed additive to chicken feed.

[0075] Raw material ratio: 28 parts of green tea extract, 18 parts of hawthorn extract, 14 parts of cactus thorn powder, 7 parts of garlic powder, 4 parts of echinacea extract, 8 parts of yeast extract, 13 parts of glucose, and 22 parts of carrier (a mixture of wheat bran and starch, the ratio is 1:1).

[0076] Preparation steps: operate according to steps S1 to S4 in Example 2. In the preparation of green tea extract, the extraction conditions are set to a pressure of 35 MPa, a temperature of 55°C, and a supercritical CO2 flow rate of 20 L / min; the preparation of hawthorn extract adopts a water-powder ratio of 1:10 for multiple cycles of extraction; the drying temperature is controlled to 75°C during drying and granulation, and the dried material is fed into a granulator, and granules with a particle size of 1-3 mm are made by extrusion and cutting, and finally a granular feed additive is obtained.

[0077] Experimental method: Three groups of healthy newborn chickens (recessive white-feathered chickens) with similar weight and genetic background were selected as the blank group, experimental group and control group respectively. 300 normal recessive white-feathered chickens that had just hatched were randomly selected from each group. They were raised in an all-in, all-out, open chicken house for 7 weeks, and daily management and feeding restrictions were carried out in accordance with the "Technical Specifications for Feeding Management". The blank group was fed with basic feed, the experimental group was fed with feed with 7% feed additives, and the control group was fed with feed with commonly used antibiotics. The health status of the chickens was observed daily and the occurrence of diseases was recorded. Diseases that occurred within the first week of the experiment were not counted. After the sick chickens were found, they were isolated and treated, and no subsequent experiments were conducted on the sick chickens.

[0078] Data collection and analysis: Before and after the experiment, the weight of the chickens was measured and the average daily weight gain was calculated; the disease incidence of the two groups of chickens during the experiment was counted and the disease incidence rate was calculated; the relationship between feed consumption and chicken weight gain was analyzed and the feed conversion rate was calculated. The experimental results are shown in Table 2.

[0079] Table 2 Experimental data of applying animal feed additives to chicken feed

[0080]

[0081] in conclusion:

[0082] In the 7-week control experiment, the blank group chickens suffered from the disease a total of 9 times (including 6 cases of influenza and 3 cases of botulism poisoning), the experimental group chickens suffered from the disease a total of 4 times (including 4 cases of influenza), and the control group chickens suffered from the disease 3 times (3 cases of influenza). The number of illnesses in the experimental and control groups was similar, and there was a significant decrease compared with the blank group. The number of illnesses in the experimental group chickens was reduced by about 56% ((9-4) / 9*100%) compared with the blank group, indicating that feed additives can effectively improve the immunity and disease resistance of chickens. Compared with the blank group, the experimental group chickens had bright feathers, good mental state, and significantly improved overall health.

[0083] The average daily weight gain of the chickens in the experimental group increased by about 8.31% ((23.73-21.91) / 21.91*100%) compared with the blank group, indicating that the feed additive has a significant promoting effect on the growth of chickens.

[0084] The feed consumption of the chickens in the experimental group was slightly higher than that in the control group, but their growth rate was faster and their feed conversion rate (the amount of feed required per unit of weight gain) was lower, indicating that the feed additive improved the efficiency of feed utilization.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0086] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. An animal feed additive, characterized in that: The invention is composed of the following components in parts by weight: 20-30 parts of green tea extract, 15-25 parts of hawthorn extract, 10-25 parts of cactus thorn powder, 5-10 parts of garlic powder, 3-5 parts of echinacea extract, 5-10 parts of yeast extract, 10-15 parts of glucose and 10-50 parts of carrier.

2. The animal feed additive according to claim 1, characterized in that: The carrier includes wheat bran and / or starch.

3. The animal feed additive according to claim 1, characterized in that The preparation steps of the animal feed additive include: S1, raw material preparation and pretreatment; S2, preparation of green tea extract and hawthorn extract; S3, raw material mixing, after accurately weighing the raw materials according to the ratio, fully and evenly mix them with the carrier material to ensure that the distribution of each component is consistent; S4, drying and granulation, drying the uniformly mixed materials to remove excess water, and then forming granules through a granulator.

4. The animal feed additive according to claim 3, characterized in that: In step S1, the dried green tea, hawthorn and cactus thorn are crushed by a grinder, the green tea powder is sieved to 80 mesh, the hawthorn powder is sieved to 40 mesh, and the cactus thorn powder is sieved to 40 mesh.

5. The animal feed additive according to claim 3, characterized in that In step S2: Green tea extract is extracted from green tea powder using supercritical CO2 extraction technology; The hawthorn extract was extracted from the hawthorn powder by multiple cyclic extraction method.

6. The animal feed additive according to claim 5, characterized in that The method for extracting green tea extract includes: setting the extraction conditions to a pressure of 20-40MPa and a temperature of 40-60°C, loading green tea powder into a supercritical extraction kettle, adjusting the supercritical CO2 flow rate for extraction operation, collecting the extract, purifying, concentrating and drying to obtain the green tea extract.

7. The animal feed additive according to claim 5, characterized in that: Before adding green tea powder to the supercritical extraction kettle, a set amount of entrainer is added to the extraction kettle; Preferably, the entrainer is ethanol.

8. The animal feed additive according to claim 5, characterized in that The method for extracting hawthorn extract comprises: mixing hawthorn powder and water in a ratio of 1:5-1:20, heating to boiling and maintaining for a period of time for primary extraction, then filtering to separate the extract and the residue, repeatedly extracting the residue for multiple times, combining the extracts, purifying, concentrating and drying to obtain the hawthorn extract.

9. The animal feed additive according to claim 3, characterized in that In step S4: the drying temperature is 60-80°C, and the material is dried to a moisture content of ≤5%.

10. The animal feed additive according to any one of claims 1 to 9, characterized in that: The amount of the compound added in the feed is 1-25% of the total weight of the feed.

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