Vitamin-added pet food containing fish-derived raw materials and having effects of beautifying hair and protecting skin and preparation method of pet food

Abstract

The invention discloses a pet food added with vitamins, containing fish-derived raw materials and having effects of beautifying hair and protecting skin and a preparation method thereof. The vitamin-added pet food containing fish-derived raw materials comprises the following raw materials in parts by weight: 8-16 parts of salmon, 1-5 parts of salmon fish oil, 50-60 parts of chicken, 10-15 parts of chicken liver, 10-15 parts of chicken heart, 2-5 parts of sweet potato powder, 1-5 parts of beer yeast powder, 2-5 parts of chicken oil, 1-2 parts of semen plantaginis powder, 1-2 parts of chicory root powder, 1-2 parts of cellulose and 0.5-2 parts of egg yolk lecithin. The nutrient solution is prepared from the following components in parts by weight: 0.2-0.8 part of polyglycerol fatty acid ester, 5-20 parts of water, 0.2-0.5 part of vitamin E and 0.05-0.1 part of agar. The pet food containing the fish-derived raw materials and added with the vitamins is comprehensive in nutrition, and can enhance the physique of pets, help the growth of pet hair and make the hair color of the pets bright and glossy.

Description

Technical Field

[0001] The invention relates to the technical field of pet food processing and manufacturing, in particular to pet food with added vitamins and containing fish-derived raw materials and having the functions of beautifying hair and skin. Background Art

[0002] With the development of the times and the improvement of people's living standards, more and more people are starting to keep pets. And with the development of the pet industry and the improvement of pet owners' awareness of pet health, people are beginning to pay attention to how pet food affects the appearance of pets, especially the health of skin and hair. The skin is the largest organ of a pet. It not only protects the pet from the external environment, but also affects the comfort and appearance of the pet. Healthy skin and hair are essential to the overall health and happiness of pets.

[0003] In nutrition, the health of skin and hair is closely related to specific nutrients. For example, Omega-3 and Omega-6 fatty acids are essential for maintaining the barrier function of the skin and promoting hair gloss. Omega-3 fatty acids, especially EPA and DHA, can reduce skin inflammation and improve dandruff and itching problems, while Omega-6 fatty acids, such as linoleic acid, are equally important for hair growth and skin health. Therefore, it is necessary to develop pet food containing these nutrients to meet the needs of pets for beautiful hair and skin care. These products are usually achieved by adding fish oil, flaxseed oil, vitamins and trace elements.

[0004] Existing pet food usually adopts the traditional puffing process, namely hot wet extrusion puffing technology, which is one of the most commonly used methods in pet food production. This process heats and pressurizes the raw material mixture and extrude it through a mold of a specific shape, then expands the food into shape under the instant release of high temperature and pressure, and finally dries it. Although this process can make pet food have advantages such as better taste and easy storage and transportation, it may also cause certain losses in the nutrients in the food.

[0005] Therefore, it is necessary to develop a pet food with a more reasonable ratio and a suitable production method. Summary of the invention

[0006] In view of the limitations of the above-mentioned prior art, the present invention provides a pet food with added vitamins and containing fish-derived raw materials, which has the effect of beautifying hair and skin, and a preparation method thereof. The present invention also provides a new method for producing pet food, which can reduce the nutritional loss of pet food as much as possible, and the pet food of the present invention can not only meet the nutritional needs of pets, but also play a good role in fur care.

[0007] To achieve the above objectives, the present invention is implemented through the following technical scheme: on the one hand, the present invention provides a pet food with added vitamins and containing fish-derived raw materials with hair beautifying and skin care effects, comprising the following raw materials in parts by weight: 0.2-0.5 parts of vitamin E, 8-16 parts of salmon, 1-5 parts of salmon oil, 50-60 parts of chicken, 10-15 parts of chicken liver, 10-15 parts of chicken heart, 2-5 parts of sweet potato powder, 1-5 parts of brewer's yeast powder, 2-5 parts of chicken oil, 1-2 parts of psyllium powder, 1-2 parts of chicory root powder, 1-2 parts of cellulose, 0.5-2 parts of egg yolk lecithin, 0.2-0.8 parts of polyglycerol fatty acid ester, 5-20 parts of water, and 0.05-0.1 parts of agar.

[0008] The present invention does not achieve the corresponding effect by adding a single hair-beautifying ingredient, but achieves the effect of hair-beautifying and skin-care through a triple combination of a combination of fresh fish meat, a combination of fresh salmon and salmon oil, and a combination of prebiotics, and adds vitamin E for anti-oxidation.

[0009] Among them, the combination of fresh salmon and fresh chicken, fresh chicken has a higher content of omega-6, which can cause inflammatory reactions, while salmon has a high content of omega-3, which can effectively balance the relationship between the two; and the salmon powder and frozen salmon used in the market have a large loss of nutrients such as unsaturated fatty acids. The salmon added to this formula is fresh salmon raised in Xinjiang glacier live water, and is transported in a cold chain at 0-4℃ throughout the process, which greatly retains the freshness and nutritional value of the raw materials.

[0010] The present invention also adopts a combination of fresh salmon and salmon oil. Both salmon and salmon oil are rich in omega-3, which can effectively regulate hair growth factor and promote hair growth; promote epidermal barrier repair; prevent hair follicle oxidation and aging; promote saturated fatty acid metabolism and prevent fat deposition; and can also enhance immunity, reduce the risk of inflammation and itching, and effectively protect hair health.

[0011] The present invention also adds prebiotics, which can effectively regulate the intestinal health of pets and better digest and absorb nutrients.

[0012] As a preferred embodiment, the salmon is fresh salmon; the chicken is fresh chicken; As a preferred embodiment, the chicken liver is fresh chicken liver; and the chicken heart is fresh chicken heart.

[0013] On the other hand, the present invention also provides a method for preparing the aforementioned pet food containing fish-derived raw materials with added vitamins and having the effects of beautifying hair and skin, which specifically comprises the following steps:

[0014] (1) Preparation of meat paste: The salmon, chicken, chicken liver and chicken heart are respectively beaten into meat paste, then mixed evenly, and boiled to obtain meat paste;

[0015] (2) Preparation of sandwich layer: cooling a portion of the meat paste, mixing it with chicory root powder, psyllium powder, a portion of water, egg yolk lecithin, and polyglycerol fatty acid ester, rapidly stirring, and freeze-drying to obtain carrier 1;

[0016] Adding the salmon oil and vitamin E mixed solution into the carrier one, so that the salmon oil and vitamin E are fully adsorbed into the carrier one, to obtain the carrier two;

[0017] Spraying the agar aqueous solution onto the carrier 2 and letting it stand to obtain a sandwich layer;

[0018] (3) Cooling the remaining meat puree and fully mixing it with the remaining raw materials to obtain mixed meat puree; then firstly spreading a layer of the mixed meat puree in the mold, then placing a sandwich layer on the mixed meat puree, and then spreading a layer of the mixed meat puree on the sandwich layer; optionally repeating the above steps of laying the mixed meat puree and the sandwich layer, forming the mixture with a mold, and sterilizing the mixture to obtain the pet food.

[0019] Salmon oil is rich in Omega-3 fatty acids, especially EPA and DHA, which contain a large number of unsaturated bonds. These unsaturated bonds are extremely unstable and are easily affected by environmental factors such as air and light to cause oxidation reactions. Once the oxidation process begins, hydroperoxides will be quickly formed, and further decomposed to produce aldehydes and ketones, causing the fish oil to have a rancid smell and taste changes, while generating free radicals and lipid peroxidation, which may have adverse effects on cardiovascular health. Therefore, in order to solve the problem of easy oxidation of salmon oil in pet food, the present invention specifically designs the above-mentioned sandwich layer.

[0020] In the sandwich layer of the present invention, part of the meat paste is cooled and then mixed with chicory root powder, psyllium powder, part of water, egg yolk lecithin, and polyglycerol fatty acid ester. A large number of bubbles are generated in the mixed system after rapid stirring. Then, the mixed system containing a large number of bubbles is frozen to generate a carrier 1 with a rich pore structure. The pore structure of the carrier 1 can be used to absorb a large amount of vitamin E and salmon oil mixture, so that the vitamin E and salmon oil mixture is confined in the carrier 1 to form a carrier 2. Agar liquid is sprayed on the outer layer of the carrier 2 to form an agar shell, thereby preventing the vitamin E and salmon oil mixture from flowing out of the carrier 1, effectively solving the problem of easy oxidation of salmon oil in pet food.

[0021] In addition, the egg yolk lecithin and vitamin E in the sandwich layer also have antioxidant properties. They are confined in the sandwich layer together with the salmon oil, which also helps prevent the oxidation of the salmon oil.

[0022] As a preferred embodiment, in step (2), the mass ratio of meat paste, chicory root powder, psyllium powder, part of water, egg yolk lecithin, and polyglycerol fatty acid ester is 3-6:1-2:1-2:12:0.5-2:0.2-0.8.

[0023] As a preferred embodiment, in step (2), the rapid stirring rate is 2000-2800 rpm; and the rapid stirring time is 0.5-2 hours.

[0024] As a preferred embodiment, in step (2), the freeze-drying temperature is -20 to -30°C; and the freeze-drying time is 40 to 80 minutes.

[0025] As a more preferred embodiment, in step (2), the freeze-drying of the present invention is first carried out at normal pressure at -20 to -30°C; the freeze-drying time is 5 to 20 minutes, and then the product is treated in an ultrasound at a power of 40 to 60w for 1 to 2 minutes; then the product is placed in a vacuum at a degree of 10 to 12KPa at -20 to -30°C for 5 to 10 minutes, and then dried at normal pressure at -20 to -30°C for 30 to 40 minutes.

[0026] The present invention further optimizes the freeze-drying process of the sandwich layer. The present invention finds that carrier one is first frozen at normal pressure in the first stage, so that carrier one is first shaped, and based on the bubble structure in carrier one, certain pores are first generated therein, and then under the ultrasonic action of the second stage, the bubbles in carrier one overflow, and the process of bubble merging and overflowing will form a new pore size in carrier one, and then frozen under vacuum in the third stage, and under the action of reduced pressure, the bubbles will escape faster, and a new pore size will be formed in carrier one at this time, and finally frozen and shaped at normal pressure and dried. In this way, the freeze-drying after the above optimization will make the sandwich layer have a richer pore size, and it is also more conducive to adsorbing more vitamin E and salmon oil mixed solution, thereby better avoiding the problem of salmon oil being easily oxidized in pet food.

[0027] As a preferred embodiment, in step (2), the mass ratio of agar to water in the agar aqueous solution is 1:80-100.

[0028] As a preferred embodiment, in step (2), after the carrier 2 is cooled to 2-6 degrees, the agar aqueous solution is sprayed onto the carrier 2 and allowed to stand for 30-50 minutes.

[0029] As a preferred embodiment, in step (2), sterilization is carried out by ultraviolet light sterilization.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The formula of the present invention is reasonable, and the prepared pet food can not only meet the nutritional needs of pets, but also play a good fur care role and improve the skin condition of pets.

[0032] (2) The sandwich layer of the present invention is made by freeze-drying process, so that pets can chew and keep the taste for a long time when eating, thereby improving their sense of fullness.

[0033] (3) The sandwich layer of the present invention is made by freeze-drying process and adopts ingenious structural design, which can effectively avoid the problem of fish oil oxidation, greatly retain the original nutrients of the raw materials, and reduce nutrient loss. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with specific embodiments. It is necessary to point out that the following embodiments are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made to the present invention by those skilled in the art based on the contents of the present invention still fall within the scope of protection of the present invention.

[0035] Example 1

[0036] A method for preparing pet food containing fish-derived raw materials and having the functions of beautifying fur and skin, which is added with vitamins, comprises the following steps:

[0037] (1) Preparation of meat paste: First, 55 parts of chicken, 10 parts of salmon, 13 parts of chicken liver, and 14 parts of chicken heart are beaten into meat paste respectively, and then cooked to obtain meat paste;

[0038] (2) Preparation of sandwich layer:

[0039] Taking part of the meat paste and cooling it, mixing it with chicory root powder, psyllium powder, part of water, egg yolk lecithin and polyglycerol fatty acid ester, wherein the mass ratio of the meat paste, chicory root powder, psyllium powder, part of water (12 parts), egg yolk lecithin and polyglycerol fatty acid ester is 5:1:2:12:1.5:0.5; after rapid stirring, the rapid stirring rate is 2500 revolutions / min; the rapid stirring time is 1 hour, freeze drying, the freeze drying temperature is -25°C; the freeze drying time is 60 minutes; and carrier one is obtained;

[0040] A mixture of 0.3 parts of vitamin E and 4 parts of salmon oil is added to carrier one, so that the salmon oil and vitamin E are fully adsorbed in carrier one, to obtain carrier two; an agar aqueous solution (the mass ratio of agar to water is 1:90, wherein the amount of agar added is 0.06 parts) is sprayed onto the carrier two (the carrier two is cooled to 5 degrees), and the mixture is allowed to stand to obtain a sandwich layer;

[0041] (3) After the remaining meat puree is cooled, it is fully mixed with the remaining raw materials to obtain mixed meat puree; then a layer of the mixed meat puree is first spread in the mold, and then a sandwich layer is placed on the mixed meat puree, and then another layer of the mixed meat puree is spread on the sandwich layer, the material in the mold is shaped, and light sterilized to obtain the pet food, and the packaging is taken out to complete the processing process.

[0042] Example 2

[0043] A method for preparing pet food containing fish-derived raw materials and having the functions of beautifying fur and skin, which is added with vitamins, comprises the following steps:

[0044] (1) Preparation of meat paste: First, 50 parts of chicken, 15 parts of salmon, 11 parts of chicken liver, and 12 parts of chicken heart are beaten into meat paste respectively, and then cooked to obtain meat paste;

[0045] (2) Preparation of sandwich layer:

[0046] Taking part of the meat paste and cooling it, mixing it with chicory root powder, psyllium powder, part of water, egg yolk lecithin and polyglycerol fatty acid ester, wherein the mass ratio of the meat paste, chicory root powder, psyllium powder, part of water (12 parts), egg yolk lecithin and polyglycerol fatty acid ester is 6:1.5:1.5:12:1:0.7; after rapid stirring, the rapid stirring rate is 2800 rpm; the rapid stirring time is 0.5 hour, freeze drying, the freeze drying temperature is -30°C; the freeze drying time is 42 minutes; and carrier one is obtained;

[0047] A mixture of 0.4 parts of vitamin E and 3 parts of salmon oil is added to carrier one, so that the salmon oil and vitamin E are fully adsorbed in carrier one, to obtain carrier two; an agar aqueous solution (the mass ratio of agar to water is 1:95, wherein the amount of agar added is 0.05 parts) is sprayed onto the carrier two (the carrier two is cooled to 6 degrees), and the mixture is allowed to stand to obtain a sandwich layer;

[0048] (3) After the remaining meat puree is cooled, it is fully mixed with the remaining raw materials to obtain mixed meat puree; then a layer of the mixed meat puree is first spread in the mold, and then a sandwich layer is placed on the mixed meat puree, and then another layer of the mixed meat puree is spread on the sandwich layer, the material in the mold is shaped, and light sterilized to obtain the pet food, and the packaging is taken out to complete the processing process.

[0049] Example 3

[0050] A method for preparing pet food containing fish-derived raw materials and having the functions of beautifying fur and skin, which is added with vitamins, comprises the following steps:

[0051] (1) Preparation of meat paste: First, 55 parts of chicken, 12 parts of salmon, 10 parts of chicken liver, and 13 parts of chicken heart are beaten into meat paste respectively, and then cooked to obtain meat paste;

[0052] (2) Preparation of sandwich layer:

[0053] Taking part of the meat paste and cooling it, mixing it with chicory root powder, psyllium powder, part of water, egg yolk lecithin and polyglycerol fatty acid ester, wherein the mass ratio of the meat paste, chicory root powder, psyllium powder, part of water (12 parts), egg yolk lecithin and polyglycerol fatty acid ester is 5:2:1:12:2:0.2; after rapid stirring, the rapid stirring rate is 2600 rpm; the rapid stirring time is 0.8 hours, freeze drying, the freeze drying temperature is -28°C; the freeze drying time is 50 minutes; and carrier one is obtained;

[0054] A mixture of 0.5 parts of vitamin E and 2 parts of salmon oil is added to carrier one, so that the salmon oil and vitamin E are fully adsorbed in carrier one, to obtain carrier two; an agar aqueous solution (the mass ratio of agar to water is 1:100, wherein the amount of agar added is 0.06 parts) is sprayed onto the carrier two (the carrier two is cooled to 3 degrees), and the mixture is allowed to stand to obtain a sandwich layer;

[0055] (3) After the remaining meat puree is cooled, it is fully mixed with the remaining raw materials to obtain mixed meat puree; then a layer of the mixed meat puree is first spread in the mold, and then a sandwich layer is placed on the mixed meat puree, and then another layer of the mixed meat puree is spread on the sandwich layer, the material in the mold is shaped, and light sterilized to obtain the pet food, and the packaging is taken out to complete the processing process.

[0056] Example 4

[0057] A method for preparing pet food containing fish-derived raw materials and having the functions of beautifying fur and skin, which is added with vitamins, comprises the following steps:

[0058] (1) Preparation of meat paste: First, 52 parts of chicken, 10 parts of salmon, 14 parts of chicken liver, and 11 parts of chicken heart are beaten into meat paste respectively, and then cooked to obtain meat paste;

[0059] (2) Preparation of sandwich layer:

[0060] Taking part of the meat paste and cooling it, mixing it with chicory root powder, psyllium powder, part of water, egg yolk lecithin and polyglycerol fatty acid ester, wherein the mass ratio of the meat paste, chicory root powder, psyllium powder, part of water (12 parts), egg yolk lecithin and polyglycerol fatty acid ester is 6:1.2:1.5:12:1.5:0.5; after rapid stirring, the rapid stirring rate is 2400 rpm; the rapid stirring time is 1 hour, freeze drying, the freeze drying temperature is -20°C; the freeze drying time is 80 minutes; and carrier one is obtained;

[0061] A mixture of 0.4 parts of vitamin E and 5 parts of salmon oil is added to carrier one, so that the salmon oil and vitamin E are fully adsorbed in carrier one, to obtain carrier two; an agar aqueous solution (the mass ratio of agar to water is 1:80, wherein the amount of agar added is 0.06 parts) is sprayed onto the carrier two (the carrier two is cooled to 2), and the mixture is allowed to stand to obtain a sandwich layer;

[0062] (3) After the remaining meat puree is cooled, it is fully mixed with the remaining raw materials to obtain mixed meat puree; then a layer of the mixed meat puree is first spread in the mold, and then a sandwich layer is placed on the mixed meat puree, and then another layer of the mixed meat puree is spread on the sandwich layer, the material in the mold is shaped, and light sterilized to obtain the pet food, and the packaging is taken out to complete the processing process.

[0063] Example 5

[0064] Compared with Example 1, the only difference is that it is first freeze-dried at normal pressure and -25°C for 15 minutes, then treated with ultrasound at a power of 50W for 2 minutes; then placed in a vacuum of 10KPa at -25°C for 8 minutes, and then dried at normal pressure and -25°C for 35 minutes.

[0065] Comparative Example 1

[0066] It adopts a preparation method that is basically the same as that in Example 1, the only difference is that the mass ratio of meat paste, chicory root powder, psyllium powder, part of water, egg yolk lecithin, and polyglycerol fatty acid ester is different from that in Example 1, and the mass ratio of meat paste, chicory root powder, psyllium powder, part of water, egg yolk lecithin, and polyglycerol fatty acid ester is 2:3:3:12:1:1.

[0067] Comparative Example 2

[0068] The preparation method is basically the same as that of Example 1, except that the stirring conditions are different. The stirring rate is 300 rpm and the stirring time is 3 hours.

[0069] Comparative Example 3

[0070] The preparation method is basically the same as that of Example 1, except that the freeze-drying temperature is -5°C and the freeze-drying time is 70 minutes.

[0071] Test method:

[0072] The adsorption rate refers to the adsorption rate of the carrier one to the mixed solution of vitamin E and salmon oil, and its calculation formula is: the mass of the mixed solution of vitamin E and salmon oil adsorbed by the carrier one / the total mass of the mixed solution of vitamin E and salmon oil;

[0073] Among them, the mass of the vitamin E and salmon oil mixture adsorbed by carrier one = the total mass of the vitamin E and salmon oil mixture - the mass of the vitamin E and salmon oil mixture remaining after the vitamin E and salmon oil mixture is adsorbed by carrier one.

[0074] The overflow rate refers to the calculation of the overflow rate of the liquid in the carrier 2 by applying pressure to the carrier 2. The calculation formula of the overflow rate of the liquid in the carrier 2 is: the mass of the overflowed liquid in the carrier 2 / the mass of the mixed liquid of vitamin E and salmon oil adsorbed by the carrier 1;

[0075] Among them, the mass of the vitamin E and salmon oil mixture adsorbed by carrier one = the total mass of the vitamin E and salmon oil mixture - the mass of the vitamin E and salmon oil mixture remaining after the vitamin E and salmon oil mixture is adsorbed by carrier one.

[0076] Adsorption time: refers to the time it takes for the carrier to adsorb the mixture of vitamin E and salmon oil.

[0077] The performance test results of the sandwich layers prepared in the above examples and comparative examples are shown in Table 1.

[0078] Table 1

[0079]

[0080]

[0081] The results in Table 1 above are obtained by rounding off.

[0082] From the results in Table 1, we can see that:

[0083] Compared with Comparative Examples 1-3, Example 1 shows that only under the specific process parameters of the present invention can there be a higher adsorption rate of the mixed solution of vitamin E and salmon oil, a lower overflow rate of the mixed solution of vitamin E and salmon oil, and a shorter adsorption time of the mixed solution of vitamin E and salmon oil. This further indicates that only when the sandwich layer prepared under the specific process parameters of the present invention has a richer pore size and a larger pore volume can the mixed solution of vitamin E and salmon oil be fully adsorbed, thereby protecting the mixed solution of vitamin E and salmon oil in carrier one, avoiding oxidation of salmon oil, and better retaining its nutritional value.

[0084] Compared with Example 5, Example 1 can be seen that Example 5 is a further optimization of the freeze-drying process, which has a higher adsorption rate of the vitamin E and salmon oil mixture, a lower overflow rate of the vitamin E and salmon oil mixture, and a shorter adsorption time of the vitamin E and salmon oil mixture. It also shows that through further optimization of the freeze-drying process, the prepared sandwich layer has a richer pore size and a larger pore volume, which can fully adsorb the vitamin E and salmon oil mixture.

[0085] In addition, the pet food of the present invention has comprehensive nutrition, can enhance the physique of the pet, help the growth of the pet's hair, and make the pet's hair bright and shiny.

[0086] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A pet food containing fish-derived raw materials and vitamins and having the effect of beautifying hair and skin, characterized in that: The invention comprises the following raw materials in parts by weight: 0.2-0.5 parts of vitamin E, 8-16 parts of salmon, 1-5 parts of salmon oil, 50-60 parts of chicken, 10-15 parts of chicken liver, 10-15 parts of chicken heart, 2-5 parts of sweet potato flour, 1-5 parts of brewer's yeast powder, 2-5 parts of chicken oil, 1-2 parts of psyllium powder, 1-2 parts of chicory root powder, 1-2 parts of cellulose, 0.5-2 parts of egg yolk lecithin, 0.2-0.8 parts of polyglycerol fatty acid ester, 5-20 parts of water, and 0.05-0.1 parts of agar.

2. The pet food containing fish-derived raw materials and having the effect of beautifying hair and skin according to claim 1, characterized in that: The salmon is fresh salmon; the chicken is fresh chicken.

3. The pet food with fish-derived raw materials and added vitamins and having the effect of beautifying hair and skin according to claim 2, characterized in that: The chicken liver is fresh chicken liver; the chicken heart is fresh chicken heart.

4. A method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin as claimed in any one of claims 1 to 3, characterized in that: The following steps are involved: (1) Preparation of meat paste: The salmon, chicken, chicken liver and chicken heart are beaten into meat paste respectively, then mixed evenly, and boiled to obtain meat paste; (2) Preparation of sandwich layer: Taking part of the meat paste and cooling it, mixing it with chicory root powder, psyllium powder, part of water, egg yolk lecithin, and polyglycerol fatty acid ester, stirring it rapidly, and freeze-drying it to obtain carrier 1; Adding a mixed solution of salmon oil and vitamin E into carrier one, so that the salmon oil and vitamin E are fully adsorbed into carrier one, to obtain carrier two; spraying an agar aqueous solution onto the carrier two, and letting it stand, to obtain a sandwich layer; (3) Cooling the remaining meat puree and fully mixing it with the remaining raw materials to obtain mixed meat puree; then firstly spreading a layer of the mixed meat puree in the mold, then placing a sandwich layer on the mixed meat puree, and then spreading a layer of the mixed meat puree on the sandwich layer; optionally repeating the above steps of laying the mixed meat puree and the sandwich layer, forming the mixture with a mold, and sterilizing the mixture to obtain the pet food.

5. The method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin according to claim 4, characterized in that: In step (2), the mass ratio of meat paste, chicory root powder, psyllium powder, part of water, egg yolk lecithin and polyglycerol fatty acid ester is 3-6:1-2:1-2:12:0.5-2:0.2-0.

8.

6. The method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin according to claim 4, characterized in that: Step (2), The rapid stirring rate is 2000-2800 rpm; The rapid stirring time is 0.5-2 hours.

7. The method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin according to claim 4, characterized in that: Step (2), The freeze-drying temperature is -20 to -30°C; The freeze drying time is 40-80 minutes.

8. The method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin according to claim 4, characterized in that: Step (2), In the agar aqueous solution, the mass ratio of agar to water is 1:80-100.

9. The method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin according to claim 4, characterized in that: Step (2), After the carrier 2 is cooled to 2-6 degrees, the agar aqueous solution is sprayed onto the carrier 2 and allowed to stand for 30-50 minutes.

10. The method for preparing pet food with fish-derived raw materials and added with vitamins and having the effect of beautifying hair and skin according to claim 4, characterized in that: Sterilization is done by ultraviolet light.

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