Composition for improving quality of pet fur and preparation method thereof

Abstract

The invention discloses a composition for improving pet fur quality and a preparation method thereof, and belongs to the field of pet nutritional supplements. The invention provides a composition for improving the quality of pet fur. The composition is prepared by blending an extract, prepared fish oil microcapsules, lecithin and palatability materials, wherein the extract is prepared from Chinese herbal medicines (semen cuscutae, fructus ligustri lucidi, radix astragali, radix polygoni multiflori preparata, radix glycyrrhizae, radix ginseng and radix angelicae sinensis) through semi-bionic combination and low-temperature ultrahigh-pressure supercritical extraction. The traditional Chinese medicine and the modern technology are combined, the unexpected beneficial effects are achieved, the glossiness and the smoothness of pet fur can be remarkably improved, the mental state of pets can be improved, hair slip can be effectively reduced, and the hair is full and fluffy. The composition is high in safety and can be eaten for a long time.

Description

Technical Field

[0001] The invention relates to the field of pet nutritional supplements, and in particular to a composition for improving pet fur quality and a preparation method thereof. Technical Background

[0002] With more and more pets being kept, hair loss is a problem... Currently, there are many types of nutritional supplements on the market that regulate the health of cats and dogs' fur, and the quality varies. The effects after consumption also lack multiple verifications such as theory and experiments, so it is inevitable that there is a phenomenon of "exaggerated functionality".

[0003] Many studies have found that Chinese herbal medicines have the effect of improving the quality of animal fur. Cuscuta chinensis is a traditional Chinese medicine that promotes hair growth. It has been reported that the water extract of Cuscuta chinensis can induce the differentiation of amelanocytes in hair follicles, which is related to its ability to enhance the activity of tyrosinase. Ginsenosides are the active ingredients of ginseng and one of the main effective substances of ginseng hair care. They have been proven to have the effect of preventing and treating hair loss and can be used as natural hair growth promoters. Fan Weixin et al. conducted an experimental study on the decoctions or monomers of 55 single Chinese medicines. The results showed that Ligustrum lucidum, Angelica dahurica, Bletilla striata, Nepeta tenuifolia, Astragalus membranaceus, and glycyrrhizic acid had a significant growth-promoting effect on mouse vibrissa follicles cultured in vitro.

[0004] Although various studies have shown that single or compound Chinese medicines can improve the quality of animal fur, in the field of pet applications, the existing technology has the following defects:

[0005] Chinese patent CN117122627B discloses a pet nutritional supplement prepared from a Chinese medicine composition, indicating that it can improve the skin and hair condition of pets, but the main effect of the Chinese medicine composition is to remove tear marks rather than improve fur; at the same time, the added Cynanchum cyrtonema extract is not included in the "Feed Catalog" or "Feed Additives" catalog, and its safety is unknown. Long-term use may pose a safety hazard.

[0006] Chinese patent CN114177257A discloses a Chinese medicine composition and preparation for pet skin and hair lightening, indicating that after feeding the Chinese medicine composition for skin and hair lightening, the glossiness and integrity of the pet's coat are significantly improved, playing a role in hair lightening. The Chinese medicine composition for skin and hair lightening includes astragalus, angelica, siler, peach kernel, sophora flavescens, radix stemonae, radix divaricatae, ophiopogon japonicus, and radix scrophulariae. Except for astragalus, angelica, and ophiopogon japonicus, the rest of the Chinese medicine composition is not included in the "Feed Catalog" or "Feed Additives" catalog, and can only be used as a Chinese medicine, and is not suitable for long-term use as a nutritional supplement for pets.

[0007] Fish oil is extracted from fish, and its main active ingredient is polyunsaturated fat. Studies have found that polyunsaturated fatty acid deficiency in dermatology manifests as hair discoloration, scaly skin, and hair loss and peeling. Therefore, most pet owners supplement fish oil to improve the hair quality of their pets. However, fish oil itself is easily oxidized and has a strong fishy smell, which makes many pets unwilling to eat it.

[0008] In order to solve the above problems, a composition for improving pet fur quality by combining traditional Chinese medicine and modern technology and a preparation method thereof are proposed. The composition is green and healthy and can be taken for a long time. Summary of the invention

[0009] In view of the above shortcomings, the purpose of the present invention is to provide a composition for improving the quality of pet fur, which combines traditional Chinese medicine with modern advanced production technology and has unexpected beneficial effects. The scheme adopted by the present invention is as follows:

[0010] A composition for improving the quality of pet fur, the preparation method specifically comprising the following steps:

[0011] (1) Preparation of Chinese herbal medicine extracts

[0012] The Chinese medicinal materials (Cuscuta seeds, Ligustrum lucidum fruits, Astragalus, Radix Polygoni Multiflori processed, Licorice, Ginseng, and Angelica sinensis) are added to water with a pH value of 2.0 to 3.0 at a mass ratio of 1:10 to 15, and mixed and beaten to obtain a pretreatment solution.

[0013] The pretreatment liquid is sheared (the shearing line speed is 50-65 m / min, and the shearing time is 30-60 min) to obtain a sheared liquid, and the sheared liquid is subjected to solid-liquid separation to obtain a liquid component I and a filter residue I.

[0014] The filter residue I was added to water with a pH of 7.0 to 7.5 at a mass ratio of 1:7 to 10, and mixed, and sheared (linear speed 50 to 65 m / min, time 30 to 60 min) and ground (temperature 20 to 25° C., time 20 to 30 min, rotation speed 2500 to 3000 rpm) were performed in sequence to obtain a grinding liquid.

[0015] The grinding liquid is subjected to solid-liquid separation to obtain liquid component II and filter residue II. The liquid component I and the liquid component II are mixed, and the filter residue II is discarded.

[0016] The mixed medicinal liquid components are subjected to ultra-high pressure supercritical extraction, and the extract is collected to obtain the Chinese herbal medicine extract.

[0017] The ultra-high pressure supercritical extraction procedure is: increase the pressure from 0 MPa to 350-650 MPa, maintain constant pressure for 3-5 minutes, then release the pressure to 0 MPa, and the extraction temperature is 20-25°C.

[0018] (2) Preparation of fish oil microcapsules

[0019] Prepare 18-20% edible gum solution and set aside.

[0020] Chitosan is dissolved in 1.5-2.0% acetic acid aqueous solution to prepare a 1.0-1.2% chitosan solution for later use.

[0021] Add 4.0-4.5 parts of Tween 80 to 100-120 parts of edible gum solution and mix well. Add 36-40 parts of fish oil and perform intermittent ultrasound (frequency 25-30kHz, density 0.35-0.45W / cm 2 , the second mode is ultrasonic 2s, pause 4s) for 5 to 6 minutes to form a uniform emulsion.

[0022] 300-350 parts of chitosan solution are added dropwise into the continuously stirred emulsion, stirred at 10-15°C for 40-50 minutes, allowed to stand for stratification, the upper layer of milky liquid is discarded, and the coagulant-enriched layer is collected to obtain fish oil microcapsules.

[0023] (3) Preparation and mixing

[0024] Add the palatable material and lecithin to the Chinese herbal medicine extract obtained in step (1), and stir to mix evenly.

[0025] The fish oil microcapsules obtained in step (2) are added to the solution obtained in step (3), and the mixture is stirred and sheared to be uniformly mixed, thereby obtaining a composition for improving the quality of pet fur.

[0026] Furthermore, the composition for improving the quality of pet fur comprises the following raw materials in parts by weight: 30 to 50 parts of Chinese herbal extract, 30 to 50 parts of fish oil microcapsules, 5 to 10 parts of lecithin, and 15 to 30 parts of palatable materials.

[0027] Furthermore, the usage amounts of the various Chinese herbal medicines are: 1-10 parts of Cuscuta seeds, 1-10 parts of Ligustrum lucidum fruits, 1-10 parts of Astragalus membranaceus, 0.5-5 parts of processed Polygonum multiflorum, 1-10 parts of Licorice, 0.5-2 parts of Ginseng, and 0.5-2 parts of Angelica sinensis.

[0028] Furthermore, the lecithin is one of soybean lecithin and egg yolk lecithin or a combination thereof, preferably a combination thereof.

[0029] Furthermore, the palatable material includes one or more of animal hydrolyzate, animal viscera powder, and brewer's yeast extract. As a preferred embodiment of the present invention, the animal hydrolyzate is preferably chicken hydrolyzate paste, and the animal viscera powder is preferably chicken liver powder.

[0030] Furthermore, the fish oil is of TG type (triglyceride fish oil) or RTG type (re-esterified triglyceride fish oil), preferably RTG-N type (re-esterified triglyceride fish oil with high transesterification rate (≥90%)), and the OMEGA-3 content is ≥95%.

[0031] Furthermore, the edible gum is gum arabic type 20.

[0032] By adopting the above scheme, the present invention has the following advantages:

[0033] (1) The Chinese herbal medicines used in the present invention are all included in the "Feed Catalog" and "Feed Additive Catalog" prescribed by the state, are green, healthy and safe, and can be taken for a long time.

[0034] (2) The Chinese herbal medicine of the present invention adopts semi-bionic combined with low-temperature ultra-high-pressure supercritical extraction technology to simulate the process of oral absorption and transportation through the gastrointestinal tract, which is more in line with the absorption law of drugs in pets; and the effective components of Chinese medicine can be extracted to the maximum without high temperature, thereby obtaining an active mixture with higher effective components.

[0035] (3) The present invention microencapsulates fish oil. The microencapsulated fish oil has a high content of polyunsaturated fatty acids and has no fishy smell. It can be evenly mixed with Chinese herbal medicine extracts and palatable materials by stirring and shearing. The production process is simple, and the obtained product has excellent palatability and stability.

[0036] (4) The present invention organically combines traditional Chinese medicine with modern technology, producing unexpected beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Diagram of common Chinese herbal medicines used to improve hair growth.

[0038] Figure 2 Diagram showing the mechanism of action of Chinese herbal medicine and active ingredients in preventing hair loss and promoting hair growth.

[0039] Figure 3 Diagram for the preparation of fish oil microcapsules.

[0040] Figure 4 These are actual pictures of compositions 1 to 7.

[0041] Figure 5 This is the state of composition 1 after being placed at high temperature (50° C.) for 3 months.

[0042] Figure 6 This is the weight table of the floating wool collected after the experiment. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with the accompanying drawings and examples, but the examples do not limit the present invention in any form. Unless otherwise specified, the reagents, methods and equipment involved in the present invention are conventional reagents, methods and equipment in the technical field.

[0044] Example 1: Preparation of Chinese herbal medicine extracts.

[0045] 1.1 Chinese herbal medicine extracts 1

[0046] 10 parts of Cuscuta seeds, 10 parts of Ligustrum lucidum fruits, 10 parts of Astragalus, 2 parts of Radix Polygoni Multiflori processed, 10 parts of Licorice, 2 parts of Ginseng, and 2 parts of Angelica sinensis are added to 460 parts of water with pH 2.5, mixed and pulped with a pulper, and then sheared with a high-speed shearing machine for 45 minutes, centrifuged to obtain a supernatant liquid and a residue; the residue is added to 300 parts of water with pH 7.5, mixed and stirred for 5 minutes, sheared and ground for 30 minutes each, centrifuged twice, and a supernatant liquid and a residue are obtained, and the residue is discarded. The supernatant liquid obtained by the two centrifugations is mixed, and the pressure is increased to 650 MPa by an ultra-high pressure module, maintained for 3 minutes, and then the pressure is released to obtain an extract 1 in which the drug and water are completely integrated.

[0047] 1.2 Chinese herbal medicine extracts 2

[0048] 10 parts of Cuscuta seeds, 10 parts of Ligustrum lucidum fruits, 10 parts of Astragalus membranaceus, 2 parts of processed Polygonum multiflorum, 10 parts of Licorice root, 2 parts of Ginseng, and 2 parts of Angelica sinensis were crushed and passed through a 60-mesh sieve, mixed evenly, added with 460 parts of water, soaked for 2 h, heated to 80° C. and subjected to ultrasonic extraction for 60 min. The residues were removed by centrifugation to obtain Extract 2.

[0049] Example 2: Preparation of fish oil microcapsules.

[0050] 2.1 Fish oil microcapsules 1

[0051] Prepare 20% arabinoside (20 type) solution and 1.0% chitosan solution respectively for later use. The preparation method of 1.0% chitosan solution is to dissolve chitosan in 2.0% acetic acid aqueous solution.

[0052] Add 4.0 parts of Tween 80 to 100 parts of the food arabic solution and mix well. Add 36 parts of fish oil and perform intermittent ultrasound (frequency 25-30 kHz, density 0.35-0.45 W / cm 2 , the second mode is ultrasonic 2s, pause 4s) 6min, to form a uniform emulsion. 300 parts of chitosan solution are added dropwise to the above emulsion which is constantly stirred, stirred at 10-15°C for 40min, allowed to stand for stratification, the upper layer of milky liquid is discarded, and the coagulant enrichment layer is collected to obtain fish oil microcapsules 1.

[0053] The above-mentioned gums were replaced with Arabic (type 30), pectin, sodium alginate, gelatin, and carrageenan, but fish oil microcapsules could not be prepared. See the attached figure for details.

[0054] Example 3: A composition for improving the quality of pet fur.

[0055] 3.1 Composition 1: Add 20 parts of chicken hydrolyzate paste and 5 parts of lecithin to 45 parts of traditional Chinese medicine extract 1, stir and mix evenly, then add 30 parts of fish oil microcapsules 1, stir and shear to obtain composition 1.

[0056] 3.2 Composition 2: Add 20 parts of chicken hydrolyzate paste and 5 parts of lecithin to 45 parts of traditional Chinese medicine extract 2, stir and mix evenly, then add 30 parts of fish oil microcapsules 1, stir and shear to obtain composition 2.

[0057] 3.3 Composition 3: Add 20 parts of chicken hydrolyzate paste and 5 parts of lecithin to 45 parts of traditional Chinese medicine extract 1, stir and mix evenly, then add 30 parts of fish oil, emulsify and homogenize to obtain composition 3.

[0058] 3.4 Composition 4: Add 20 parts of chicken hydrolyzate paste and 5 parts of lecithin to 45 parts of Chinese herbal extract 2, stir and mix evenly, then add 30 parts of fish oil, emulsify and homogenize to obtain composition 4.

[0059] 3.5 Composition 5: Add 20 parts of chicken hydrolyzate paste and 5 parts of lecithin to 75 parts of traditional Chinese medicine extract 1, and stir and shear to obtain composition 5.

[0060] 3.6 Composition 6: Add 15 parts of chicken hydrolyzate, 5 parts of water and 5 parts of lecithin to 75 parts of fish oil microcapsules 1, and stir and shear to obtain composition 6.

[0061] Example 4: Effect of a composition for improving pet fur quality on the fur quality of pet cats.

[0062] 4.1 Experimental plan: According to the "2023-2024 China Pet Industry White Paper (Consumer Report)" and the research data of China Economic Industry Research Institute, in my country's pet cat category, mid-range cats occupy the main market, with a cat penetration rate of 62%, mainly American shorthair and British shorthair cats. Therefore, in order to ensure the scientific nature of this experimental plan, the convenience of collecting experimental subjects, and reduce the difference in the final evaluation results of cats of different breeds, the experimental subjects of this experimental plan are all adult American shorthair and British shorthair cats aged 2 to 4.

[0063] This experiment recruited 105 pet owners who were troubled by hair loss in their pet cats. The 105 cats were randomly divided into 7 groups, A, B, C, D, E, F, and G, with 15 cats in each group. Each group was given the test sample according to Table 1. During the experiment, the pet owners were not told the specific ingredients of the feeding sample. The feeding frequency was 2 times a day, 1 to 2 mL each time, for 3 months, and a uniform combing brush was used at a fixed time every week (see Figure 1 ) Collect the pet's floating hair once, seal it in a transparent ziplock bag, and weigh it uniformly after 3 months. After the experiment, all pet owners evaluated the quality of their pet cat's fur.

[0064] Table 1 Test groups and samples given

[0065]

[0066] 4.2 Pet fur quality evaluation: A fuzzy mathematical evaluation model is established to evaluate the quality of pet fur. The specific method is as follows:

[0067] (1) Determine the factor set: The fur quality of a pet cat is evaluated based on fur gloss, fur smoothness, pet mental state, and fur shedding severity. Therefore, the model factor set V = {v1, v2, v3, v4}, where v1 represents fur gloss, v2 represents fur smoothness, v3 represents pet mental state, and v4 represents fur shedding severity.

[0068] (2) Determine the evaluation set: Since most of the pet owners recruited are non-professional evaluators, a more easily judged evaluation set U = {u1, u2, u3} is used, where u1 represents good, u2 represents average, and u3 represents poor.

[0069] (3) Determine the weight set: Through communication and investigation, pet owners are more concerned about the hair loss problem of their pet cats. Therefore, the weight set X = {x1, x2, x3, x4} is designed, where x1 = 0.2 represents the fur glossiness and has a weight value of 0.2 in this model; x2 = 0.2 represents the fur smoothness and has a weight value of 0.2 in this model; x3 = 0.2 represents the mental state of the pet and has a weight value of 0.2 in this model; and x4 = 0.4 represents the severity of hair loss and has a weight value of 0.4 in this model.

[0070] (4) Establishment and transformation of fuzzy matrix

[0071] R is the evaluation fuzzy matrix mapping U to V, where a ij The proportion of times factor i (i=1, 2, 3, 4) is rated as j (j=1, 2, 3).

[0072]

[0073] The fuzzy relationship comprehensive evaluation set Y = A × R, that is, the weight set multiplied by the fuzzy matrix.

[0074] 4.3 Data Collection

[0075] Before and three months after the feeding experiment, pet owners evaluated the fur of their pet cats once, and each group was calculated separately to compare the evaluation scores before and after the experiment.

[0076] 4.4 Experimental Results

[0077] The 7 groups are divided into before and after the experiment, and a total of 14 matrices are obtained, R1~R7 before the experiment and R1'~R7' after the experiment; after multiplying the weights, Y1~Y7 and Y1'~Y7' are obtained. As follows:

[0078]

[0079] The weight set is multiplied by the matrix:

[0080]

[0081]

[0082]

[0083] More than 80% of the pet cats recruited had fur quality problems, and more than 85% reported severe hair loss.

[0084] By comparing before and after the experiment, it can be seen that the fur of groups A, B, C, D, E, and F has improved significantly after the experiment. Among them, 96.0% of pet owners in group A reported that the cat's fur was significantly improved, and 84.1%, 73.3%, 68.0%, 54.7%, and 56.0% of pet owners in groups B, C, D, E, and F reported that the cat's fur was significantly improved, respectively. Group G reported almost no improvement.

[0085] Groups A, B, C, and D are mixtures of Chinese herbal extracts and fish oil microcapsules (or fish oil). Their fur-improving effects are better than those of groups E and F, where either is used alone. The effect of group A is very obvious, far stronger than that of other groups. Group A's Chinese herbal medicines use semi-bionics combined with low-temperature ultra-high-pressure supercritical extraction technology to simulate the process of oral absorption and transport through the gastrointestinal tract, which is more in line with the absorption law of drugs in pets. The effective components of Chinese herbal medicines can be extracted to the maximum without high temperature, and an active mixture with higher effective components can be obtained. At the same time, the fish oil is microencapsulated. The microencapsulated fish oil has a high content of polyunsaturated fatty acids and has no fishy smell. It can be mixed evenly with Chinese herbal extracts and palatable materials, and has excellent palatability and stability.

[0086] After the experiment, 40% and 46.7% of pet owners in Group B and Group D gave their pets a medium to poor mental state. After communication, pet owners reported that the product had a strong fishy smell and poor palatability, and their pets did not actively eat and needed to be force-fed. Groups C and D were obtained by emulsifying and homogenizing Chinese herbal extracts and fish oil. It can be seen that directly using fish oil will seriously limit the use of the product.

[0087] Attached Figure 4 It indicates the weight of floating hair combed off during pet use. Through experimental tests, without any hair improvement products, cats (British Shorthair and American Shorthair) shed about 0.46-0.7g of hair per day, and about 41.4-63g of hair in 3 months; cats with fur quality problems and severe hair loss shed about 1.1-1.4g of hair, and about 99-126g of hair in 3 months. The cats recruited in the experiment were all cats with severe hair loss. From the hair loss collected 3 months after the experiment, it can be seen that Group A has made great improvements in reducing hair loss, and the improvement in hair loss is highly consistent with the comprehensive evaluation results.

[0088] It can be seen from Example 4 that Chinese herbal extracts and fish oil microcapsules have obvious synergistic effects in improving the quality of pet fur. After use, the mental state of the pet is significantly improved without any adverse reactions. The product is healthy and safe and can be taken as a pet nutritional supplement for a long time.

[0089] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A composition for improving the quality of pet fur, characterized in that: The composition consists of the following raw materials: 30-50 parts of Chinese herbal medicine extract; 30-50 portions of fish oil microcapsules; 5-10 parts of lecithin; 15 to 30 portions of palatable materials.

2. A composition for improving pet fur quality according to claim 1, characterized in that: The Chinese herbal extracts are Cuscuta chinensis, Ligustrum lucidum, Astragalus membranaceus, Radix Polygoni multiflori, Licorice, Ginseng and Angelica sinensis, and the amount of the Chinese herbal extracts used is: 1-10 parts of Cuscuta seeds; 1-10 parts of Ligustrum lucidum fruit; 1-10 parts of Astragalus; 0.5-5 parts of processed Polygonum multiflorum; 1-10 parts of licorice; 0.5-2 portions of ginseng; 0.5 to 2 parts of Angelica sinensis.

3. A composition for improving pet fur quality according to claim 2, characterized in that: The lecithin is one of soybean lecithin and egg yolk lecithin or a combination thereof; the palatable material includes one or more of animal hydrolyzate, animal viscera powder, and brewer's yeast extract.

4. The method for preparing the composition for improving pet fur quality according to claims 1 to 3, characterized in that The following steps are involved: A. Preparation of Chinese herbal extracts: (1) Cuscuta seeds, Ligustrum lucidum fruit, Astragalus membranaceus, Radix Polygoni multiflori processed, Radix Glycyrrhizae, Ginseng and Angelica sinensis are weighed according to the usage amount, added into water with a pH value of 2.0 to 3.0, mixed and beaten to obtain a pretreatment solution. (2) Shearing the pretreatment liquid to obtain a sheared liquid, and performing solid-liquid separation on the sheared liquid to obtain a drug solution component I and a filter residue I. (3) Add the filter residue I into water at a pH of 7.0 to 7.5, mix, and sequentially shear and grind to obtain a grinding liquid. (4) The grinding liquid is subjected to solid-liquid separation to obtain a liquid component II and a filter residue II. (5) Mix the liquid component I and the liquid component II, and discard the filter residue II. (6) subjecting the mixed medicinal liquid components to ultra-high pressure supercritical extraction, collecting the extract, and obtaining the Chinese herbal medicine extract. B. Preparation of fish oil microcapsules: (1) Solution preparation Prepare 18-20% edible gum solution for later use; Prepare 1.0-1.2% chitosan solution and set aside. (2) Add 4.0-4.5 parts of Tween 80 to 100-120 parts of edible gum solution and mix well, then add 36-40 parts of fish oil and perform intermittent ultrasonic treatment for 5-6 minutes to form a uniform emulsion. (3) 300-350 parts of chitosan solution are added dropwise to the above emulsion which is constantly stirred, stirred at 10-15° C. for 40-50 minutes, allowed to stand for stratification, the upper layer of milky liquid is discarded, and the coagulant-rich layer is collected to obtain fish oil microcapsules. C. Mixing and blending (1) Add the palatable material and lecithin to the Chinese herbal extract obtained in step A, and stir to mix evenly. (2) Add the fish oil microcapsules obtained in step B to the solution obtained in step C. (1), and stir and shear to mix evenly to obtain a composition for improving the quality of pet fur.

5. The method for preparing the composition for improving pet fur quality according to claim 4, characterized in that: In A.(1), the mass ratio of Chinese medicinal materials to water is 1:10-15, and in A.(3), the mass ratio of medicinal residue I to water is 1:7-10.

6. The method for preparing the composition for improving pet fur quality according to claim 4, characterized in that: In A.(2) and A.(3), the shearing line speed is 50-65 m / min, and the shearing time is 30-60 min; the grinding temperature is 20-25°C, the grinding time is 20-30 min, and the grinding speed is 2500-3000 rpm.

7. The method for preparing the composition for improving pet fur quality according to claim 4, characterized in that: A. (6), the ultra-high pressure supercritical extraction procedure is: after increasing the pressure from 0 MPa to 350-650 MPa, the constant pressure is maintained for 3-5 minutes, and then the pressure is released to 0 MPa. The ultra-high pressure supercritical extraction temperature is 20-25°C.

8. The method for preparing the composition for improving pet fur quality according to claim 4, characterized in that: B. The edible gum described in (1) is type 20 gum arabic; the chitosan solution is prepared by dissolving chitosan in a 1.5-2.0% acetic acid aqueous solution.

9. The method for preparing the composition for improving pet fur quality according to claim 4, characterized in that: B. The fish oil described in (2) is TG type (triglyceride type fish oil), RTG type (re-esterified triglyceride type fish oil) or RTG-N type (re-esterified triglyceride type fish oil with high transesterification rate (≥90%)).

10. The method for preparing the composition for improving pet fur quality according to claim 4, characterized in that B. The intermittent ultrasonic frequency in (2) is 25 to 30 kHz, and the ultrasonic density is 0.35 to 0.45 W / cm 2 , the second mode is ultrasound 2s, pause 4s.

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