Preparation method of cat food with stomach conditioning effect of prebiotics

Abstract

The invention discloses a preparation method of cat food with prebiotics stomach conditioning efficacy, and relates to the related technical field of animal feeds, the cat food comprises the following main components: meat, carbohydrate, fruits and vegetables, prebiotics and an additive; the preparation method specifically comprises the following steps: sorting and cooking; performing crushing treatment; mixing the ingredients; granulating and forming; performing vacuum spraying; baking and packaging. According to the cat food processed by the processing method disclosed by the invention, the cat food is rapidly processed by adopting a pre-rapid cooking mode in the processing process, the puffing time is shortened, nutrient loss is effectively reduced, meanwhile, the original flavor is not influenced, the raw materials are fully treated, including cooking meat, squeezing and separating liquid fat, and the like, so that the processing and blending of the raw materials are facilitated; by adopting an external layered wrapping mode, the palatability of the cat food is prevented from being influenced, the ingestion rate is ensured, and meanwhile, the compound probiotic factors are added, so that the establishment of normal flora balance in intestinal tracts is facilitated, and the intestinal protection and immune regulation capabilities of the cat food are improved.

Description

Technical Field

[0001] The invention relates to the technical field related to animal feed, and in particular to a method for preparing cat food with prebiotic stomach conditioning effect. Background Art

[0002] With the widespread breeding of pet cats and people's concern about the health of pet cats, the quality and functionality of cat food are becoming increasingly important. The cat food on the market today mainly emphasizes providing adequate nutrition, but often ignores the needs of the cat's digestive system and intestinal health. Because cats are pure carnivores, and their intestines are short and their ability to absorb nutrients is limited, they are susceptible to intestinal flora imbalance and digestive problems. At the same time, probiotics have great potential in improving digestive health. They can show significant positive effects in promoting host intestinal health, maintaining intestinal microecological balance, and improving nutrient absorption efficiency, and therefore have been further studied and applied.

[0003] Existing, such as CN117958363B, a probiotic cat food for improving the digestive function of pet cats and its preparation method, adopts probiotic cat food through a specific formula and processing technology, which not only ensures the integrity of nutrients such as vitamins and amino acids, but also effectively regulates the balance of cat intestinal flora by adding a specific probiotic combination, enhances the barrier function of cat intestinal mucosa, thereby improving the digestive ability and overall health of cats. Some cat foods will further add traditional Chinese medicine or other probiotic factors, but most of them adopt methods such as external spraying or direct mixing and adding, which is easy to affect the flavor of cat food, poor palatability, and lead to a decrease in feeding rate;

[0004] At the same time, the actual demand for cat food needs to be adjusted according to the cat's age, weight, health status and special needs. For example, kittens usually need more protein and fat to support their rapid growth and development, while adult cats need to maintain a healthy weight and body function. The protein and fat content in the feed can be moderately reduced, but sufficient energy is still required. The existing cat food processing methods are mostly controlled by raw material blending. Due to the influence of raw materials, the protein and fat content of different meat raw materials varies greatly. There is a lack of adjustment methods during the processing process, which can easily lead to waste of raw materials. At the same time, some cat foods have too high fat and nutrient content, which can easily cause pet cats to become obese and affect their health. In view of this, in-depth research was conducted on the above-mentioned issues, which led to the creation of this case. Summary of the invention

[0005] The purpose of the present invention is to provide a method for preparing cat food with prebiotic stomach conditioning effect, so as to solve the problem mentioned in the above background technology that the existing cat food processing steps are not convenient for flexible regulation, which easily causes waste of raw materials, and cat food with a large amount of prebiotic factors added easily affects the feeding rate, which is not conducive to the stable and healthy feeding of pet cats.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a method for preparing cat food with prebiotic stomach conditioning effect;

[0007] The main ingredients of the cat food include meat, carbohydrates, fruits and vegetables, prebiotics and additives;

[0008] The carbohydrates include potatoes and fat separated from the meat;

[0009] The preparation method specifically comprises the following steps:

[0010] Step S1: Sorting and cooking:

[0011] Meat, potatoes, fruits and vegetables are sorted and quickly steamed for later use. Meat is further pressed to separate the cooked meat and liquid and fat in the meat, and the upper layer of fat is taken for later use;

[0012] Step S2: Crushing process:

[0013] The potatoes and fruits and vegetables processed in step S1 are crushed for later use, the cooked meat processed in step S1 is chopped, one third of which is taken to prepare freeze-dried meat particles, and the remaining cooked meat is crushed and screened into small meat particles and minced meat for later use;

[0014] Step S3: Mixing ingredients:

[0015] Pour the potato and fruit and vegetable powder, small meat particles, prebiotics and additives processed in step S2 into a mixing barrel, add the lower layer liquid of the cooked meat separated in step S1 and an appropriate amount of water, and stir evenly to obtain a mixed wet material;

[0016] Step S4: Granulation and Forming:

[0017] The mixed wet material after the treatment in step S3 is put into a granulation device for extrusion to obtain granules, and then granulated into cylindrical shaped granules with a diameter of 7.0 to 8.0 mm and a length of 5.0 to 6.0 mm by puffing;

[0018] Step S5 Vacuum spraying:

[0019] The formed particles obtained in step S4 are placed in a drum under a vacuum environment and sprayed with egg white liquid on the surface, and part of the sieved minced meat in step S2 is mixed with the formed particles for 3 to 5 minutes to be evenly coated, and the grease obtained in step S1 is sprayed on the outer layer again, and the remaining sieved minced meat and the minced meat crumbs produced by preparing freeze-dried meat particles are mixed with the particles again for 3 to 5 minutes to be evenly coated to obtain cat food blanks;

[0020] Step S6 Baking and Packaging:

[0021] The cat food obtained in step S5 is placed on a tray, conveyed through an oven via a conveyor belt for low-temperature baking, dehydrated and baked under gradient heating and cooling conditions in the oven, then cooled to room temperature and mixed with freeze-dried meat particles to obtain finished cat food, which is then bagged and sealed to ensure the storage and transportation of the cat food.

[0022] Preferably, the specific parameters for the rapid steaming of potatoes and fruits and vegetables in step S1 are a steam pressure of 2 to 3 kg / cm2 and a steaming time of 5 to 15 seconds.

[0023] Preferably, in step S2, the meat, potatoes and fruits and vegetables are all screened through a 30-mesh sieve, and after the meat is ground, it is screened through a 60-80-mesh sieve to further separate small meat particles and minced meat.

[0024] Preferably, the maximum temperature during the puffing and granulation in step S4 is 100-130° C., the residence time is 10-15 s, and the internal pressure is 0.9-1.1 MPa.

[0025] Preferably, in step S6, the oven temperature is 50-90°C, the overall temperature is set in a step-by-step heating and then cooling mode, the highest step temperature is 80-90°C, the high temperature time does not exceed 1 hour, and the overall low temperature baking is maintained, and the overall baking time is not less than 5 hours.

[0026] Preferably, the meat is any one or a combination of chicken, duck, fish, beef, mutton and pork;

[0027] The potato of the carbohydrate is any one of sweet potato and potato or a combination of the two, and the oil of the carbohydrate includes the oil separated from the meat in step S1 and additionally added fish oil.

[0028] By adopting the above technical solution, meat raw materials with high nutritional value are used as a protein source, and carbohydrates are combined to provide sufficient energy.

[0029] Preferably, the fruits and vegetables include vegetables and fruits, wherein the vegetables are any one of cabbage, Chinese cabbage, lettuce, spinach, celery and carrot or a combination thereof, and the fruits are any one of apple, banana, watermelon, strawberry and kiwi or a combination thereof, and the added ratio of the vegetables to the fruits is 1:0.8-1.2.

[0030] By adopting the above technical solution, fruits and vegetables are mainly used to provide vitamins and minerals.

[0031] Preferably, the prebiotics are a mixture of manno-oligosaccharides, fructo-oligosaccharides, xylooligosaccharides and isomaltooligosaccharides in equal proportions, and one or more probiotic compositions selected from Streptococcus faecalis, Streptococcus lactis, Saccharomyces cerevisiae and Bacillus subtilis are also added to the prebiotics.

[0032] Preferably, the additives include trace amounts of vitamin preparations and mineral additives, wherein the vitamin preparations are composed of vitamin A, vitamin B, vitamin D, vitamin E and beta-carotene, and the minerals are a mixture of methionine iron chelate, methionine copper chelate, methionine zinc chelate, methionine manganese chelate, yeast selenium and calcium hydrogen phosphate;

[0033] The additives also include Chinese herbal medicine, which is prepared by mixing Poria cocos, Atractylodes macrocephala, Licorice and Hawthorn powder.

[0034] By adopting the above technical scheme, the original flavor of Chinese herbal medicine is not conducive to increasing the food intake of pet cats, but the internal molding and external spraying and wrapping molding method can effectively solve the problem of pet cats' feeding of Chinese herbal medicine. By utilizing the function of Chinese herbal medicine to invigorate qi and strengthen the spleen, it can effectively reduce the problems of spleen and stomach qi deficiency, reduced diet, loose stools, etc. in pet cats.

[0035] Preferably, in step S5, the outer layer spraying material also includes a microcapsule composition for surface mildew protection in addition to oil, and the microcapsule composition is prepared from plant essential oil and plant gum dietary fiber, the plant essential oil is a composition of cinnamon essential oil, citrus essential oil and mint essential oil, and the plant gum is one or more of guar gum, fenugreek gum and sesame gum. The microcapsule composition is obtained by stirring and embedding an aqueous solution of plant gum dietary fiber dextrin powder with the plant essential oil, vacuum filtering and freeze drying.

[0036] The external spray protection using the above technical solution can effectively protect the finished cat food from external bacteria, mold, etc. during processing and storage, thereby maintaining product quality and extending the shelf life.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows: the cat food processed by the preparation method of the cat food with prebiotic stomach conditioning effect has the advantages of rich nutrition, strong digestibility and good palatability, and its nutritional structure is reasonable and more in line with the physiological needs of cats. By adding mixed prebiotic factors internally and wrapping them in layers externally, while avoiding affecting the palatability of the cat food and ensuring the feeding rate, the addition of composite prebiotic factors helps to establish a normal balance of flora in the intestines, so that the stomach and intestines can work normally. By increasing the beneficial factors, it helps to improve the cat's adaptability to changes in food and environmental conditions and enhance the resistance of the pet's body.

[0038] The processing process adopts the method of quick pre-steaming to quickly process, shorten the puffing time, effectively reduce the loss of nutrients, and at the same time do not affect the original flavor. The raw materials are fully processed, including meat steaming, pressing and separating liquid fat, etc., which is convenient for the processing and allocation of raw materials and the stable control of fat and meat protein content. At the same time, the processing process makes full use of the cooking liquid and scraps such as crumbs to avoid waste of raw materials. The production process of this cat food has the characteristics of simple steps, no loss of raw material nutrition and promotion of improving the digestibility of cat food. It can provide cats with sufficient and appropriate nutrients and has the characteristics of comprehensive nutrition, high digestion and absorption rate, scientific formula and the ability to treat or prevent cat diseases.

[0039] The processing steps of the cat food of the present invention cooperate with each other, and the components are inseparable, forming a whole that is indispensable and can effectively regulate the spleen and stomach function of cats, improve their intestinal protection and immune regulation capabilities, and improve the structure of intestinal flora. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the preparation method of the present invention;

[0041] Figure 2 This is a schematic diagram of the statistical results of Experimental Example 1 of the present invention;

[0042] Figure 3 This is a schematic diagram of the statistical results of Experimental Example 2 of the present invention. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] See also Figure 1 , the present invention provides a technical solution: a method for preparing cat food with prebiotic stomach conditioning effect;

[0046] The main ingredients of cat food include meat, carbohydrates, fruits and vegetables, prebiotics and additives;

[0047] Carbohydrates include fats separated from potatoes and meat; the main components of which are meat, potatoes and fruits and vegetables are proportioned in a weight ratio of 6:1:1;

[0048] The meat is a combination of chicken, duck, fish, beef, mutton and pork; the potatoes containing carbohydrates are a combination of sweet potatoes and potatoes, and the fat containing carbohydrates includes the fat separated from the meat in step S1 and additionally added fish oil. The meat raw materials with high nutritional value serve as a protein source and provide sufficient energy together with carbohydrates.

[0049] Fruits and vegetables include vegetables and fruits, among which vegetables are a combination of cabbage, Chinese cabbage, lettuce, spinach, celery and carrots, and fruits are a combination of apples, bananas, watermelons, strawberries and kiwis. The added ratio of vegetables and fruits is 1:0.8, and fruits and vegetables are mainly used to provide vitamins and minerals.

[0050] The prebiotics are a mixture of manno-oligosaccharides, fructo-oligosaccharides, xylooligosaccharides and isomaltooligosaccharides in equal proportions, and a composition of several probiotics including fecal streptococci, lactic streptococci, brewer's yeast and bacillus subtilis is also added to the prebiotics.

[0051] The additives include trace amounts of vitamin preparations and mineral additives. The vitamin preparations are composed of vitamin A, vitamin B, vitamin D, vitamin E and beta-carotene. The minerals are a mixture of methionine iron chelate, methionine copper chelate, methionine zinc chelate, methionine manganese chelate, yeast selenium and calcium hydrogen phosphate.

[0052] The preparation method specifically comprises the following steps:

[0053] Step S1: Sorting and cooking:

[0054] Meat, potatoes, fruits and vegetables are sorted and quickly steamed for later use, wherein the meat is further squeezed to separate the cooked meat and the liquid and fat in the meat, and the upper layer of fat is taken for later use; the specific parameters for the rapid steaming of potatoes and fruits and vegetables in step S1 are a steam pressure of 2kg / cm2 and a steaming time of 15s.

[0055] Step S2: Crushing process:

[0056] The potatoes and fruits and vegetables processed in step S1 are crushed for later use; the cooked meat processed in step S1 is chopped, one third of which is taken to prepare freeze-dried meat particles, and the remaining cooked meat is crushed and screened to be divided into small meat particles and minced meat for later use; in step S2, the meat, potatoes and fruits and vegetables are all screened through a 30-mesh sieve, and the meat is crushed and screened through an 80-mesh sieve to further separate the small meat particles and minced meat.

[0057] Step S3: Mixing ingredients:

[0058] Pour the potato and fruit and vegetable powder, small meat particles, prebiotics and additives processed in step S2 into a mixing barrel, add the lower layer liquid of the cooked meat separated in step S1 and an appropriate amount of water, and stir evenly to obtain a mixed wet material;

[0059] Step S4: Granulation and Forming:

[0060] The mixed wet material after the treatment in step S3 is put into the granulation equipment for extrusion to obtain pellets, and cylindrical shaped particles with a diameter of 7.0 mm and a length of 5.0 mm are prepared by puffing granulation; in step S4, the maximum temperature during puffing granulation is 100° C., the residence time is 15 s, and the internal pressure is 1.1 MPa.

[0061] Step S5 Vacuum spraying:

[0062] The formed particles obtained in step S4 are placed in a drum under a vacuum environment and the surface layer is sprayed with egg white liquid. At the same time, part of the sieved minced meat in step S2 is mixed with the formed particles for 3 minutes for uniform coating. The outer layer is sprayed with the oil obtained in step S1 again. The remaining sieved minced meat and the minced meat crumbs produced by preparing freeze-dried meat particles are mixed with the particles again for 3 minutes for uniform coating to obtain cat food blanks.

[0063] Step S6 Baking and Packaging:

[0064] The cat food blank obtained in step S5 is placed on a tray, conveyed by a conveyor belt through an oven for low-temperature baking, dehydrated and baked under gradient heating and cooling conditions in the oven, then cooled to room temperature and mixed with freeze-dried meat particles to obtain finished cat food, which is then bagged and sealed to ensure the storage and transportation of the cat food. In step S6, the oven temperature is 50-90°C, the overall temperature is stepped up and then cooled down, the highest step temperature is 80-90°C, the high temperature time is 1 hour, the overall low temperature baking is maintained, and the overall baking time is 5 hours.

[0065] Example 2

[0066] See also Figure 1 , the present invention provides a technical solution: a method for preparing cat food with prebiotic stomach conditioning effect;

[0067] The main ingredients of cat food include meat, carbohydrates, fruits and vegetables, prebiotics and additives;

[0068] Carbohydrates include fats separated from potatoes and meat; the main components of meat, potatoes and fruits and vegetables are proportioned in a weight ratio of 5:1.5:1.5;

[0069] The meat is a combination of chicken, duck, fish, beef, mutton and pork; the potato of carbohydrate is a combination of sweet potato and potato, and the fat of carbohydrate includes the fat separated from the meat in step S1 and additionally added fish oil. The meat raw materials with high nutritional value serve as a protein source and provide sufficient energy with the help of carbohydrates.

[0070] Fruits and vegetables include vegetables and fruits, among which vegetables are a combination of cabbage, Chinese cabbage, lettuce, spinach, celery and carrots, and fruits are a combination of apples, bananas, watermelons, strawberries and kiwis. The added ratio of vegetables and fruits is 1:1.2, and fruits and vegetables are mainly used to provide vitamins and minerals.

[0071] The prebiotics are a mixture of manno-oligosaccharides, fructo-oligosaccharides, xylooligosaccharides and isomaltooligosaccharides in equal proportions, and a composition of several probiotics including fecal streptococci, lactic streptococci, brewer's yeast and bacillus subtilis is also added to the prebiotics.

[0072] The additives include trace amounts of vitamin preparations and mineral additives. The vitamin preparations are composed of vitamin A, vitamin B, vitamin D, vitamin E and beta-carotene. The minerals are a mixture of methionine iron chelate, methionine copper chelate, methionine zinc chelate, methionine manganese chelate, yeast selenium and calcium hydrogen phosphate.

[0073] Additives also include Chinese herbal medicine, which is made of a mixture of Poria cocos, Atractylodes macrocephala, Licorice and Hawthorn powder. The original flavor of Chinese herbal medicine is not conducive to increasing the food intake of pet cats, but the internal molding and external spraying and wrapping molding method can effectively solve the problem of pet cats' intake of Chinese herbal medicine, and use the function of Chinese herbal medicine to invigorate qi and strengthen the spleen to effectively reduce the problems of spleen and stomach qi deficiency, reduced diet, loose stools, etc. of pet cats.

[0074] The preparation method specifically comprises the following steps:

[0075] Step S1: Sorting and cooking:

[0076] Meat, potatoes, fruits and vegetables are sorted and quickly steamed for later use, wherein the meat is further squeezed to separate the cooked meat and the liquid and fat in the meat, and the upper layer of fat is taken for later use; the specific parameters for the rapid steaming of potatoes and fruits and vegetables in step S1 are a steam pressure of 3kg / cm2 and a steaming time of 5s.

[0077] Step S2: Crushing process:

[0078] The potatoes and fruits and vegetables processed in step S1 are crushed for later use; the cooked meat processed in step S1 is chopped, one third of which is taken to prepare freeze-dried meat particles, and the remaining cooked meat is crushed and screened to be divided into small meat particles and minced meat for later use; in step S2, the meat, potatoes and fruits and vegetables are all screened through a 30-mesh sieve, and the meat is crushed and screened through an 80-mesh sieve to further separate the small meat particles and minced meat.

[0079] Step S3: Mixing ingredients:

[0080] Pour the potato and fruit and vegetable powder, small meat particles, prebiotics and additives processed in step S2 into a mixing barrel, add the lower layer liquid of the cooked meat separated in step S1 and an appropriate amount of water, and stir evenly to obtain a mixed wet material;

[0081] Step S4: Granulation and Forming:

[0082] The mixed wet material after the treatment in step S3 is put into the granulation equipment for extrusion to obtain pellets, and cylindrical shaped particles with a diameter of 8.0 mm and a length of 6.0 mm are prepared by puffing granulation; in step S4, the maximum temperature during puffing granulation is 1130° C., the residence time is 10 s, and the internal pressure is 0.9 MPa.

[0083] Step S5 Vacuum spraying:

[0084] The formed particles obtained in step S4 are placed in a drum surface and sprayed with egg white liquid under a vacuum environment. At the same time, part of the sieved minced meat in step S2 is mixed with the formed particles for 5 minutes for uniform wrapping, and the grease obtained in step S1 is sprayed on the outer layer again. The remaining sieved minced meat and the minced meat debris produced by preparing freeze-dried meat particles are mixed with the particles again for 5 minutes for uniform wrapping to obtain cat food blanks; in step S5, the outer layer spraying material includes a microcapsule composition for surface mildew protection in addition to grease. The microcapsule composition is prepared by plant essential oil and plant gum dietary fiber. The plant essential oil is a cinnamon essential oil, citrus essential oil and mint essential oil composition. The plant gum is a composition in guar gum, fennel gum and sesame gum. After the plant gum dietary fiber dextrin powder aqueous solution is stirred and embedded with the plant essential oil, vacuum filtration and freeze drying are performed to obtain a microcapsule composition. The use of external spraying protection allows the finished cat food to effectively protect external bacteria, molds, etc. during processing and storage, maintain product quality and extend shelf life.

[0085] Step S6 Baking and Packaging:

[0086] The cat food blank obtained in step S5 is placed on a tray, conveyed by a conveyor belt through an oven for low-temperature baking, dehydrated and baked under gradient heating and cooling conditions in the oven, then cooled to room temperature and mixed with freeze-dried meat particles to obtain finished cat food, which is then bagged and sealed to ensure the storage and transportation of the cat food. In step S6, the oven temperature is 50-90°C, the overall temperature is stepped up and then cooled down, the highest step temperature is 80-90°C, the high temperature time is 1 hour, the overall low temperature baking is maintained, and the overall baking time is 5 hours.

[0087] Test Example 1

[0088] The cat food prepared according to Examples 1 to 2 was used for feeding test, and cat food with prebiotics randomly added on the market was arranged as a control sample. The pet cats were divided into three groups of ten, each group as a test example and a comparative example, respectively. Under the same feeding environment, the pet cats were fed with a rated amount of food according to their weight. The pet cats were fed continuously for one week, and the feeding desire and feeding rate of the pet cats were observed. The specific situation is as follows: Figure 2 .

[0089] like Figure 2As shown, the cat food of Example 1 and Example 2 showed a strong appetite for pet cats, with a feeding rate close to 100%, and good palatability. The proportions of some different ingredients in Example 1 and Example 2 did not have a significant effect on the feeding rate. However, some pet cats in the control group showed picky eating and only ate the freeze-dried meat particles in the cat food, and had an overall poor appetite.

[0090] Test Example 2

[0091] The cat food prepared in Examples 1 to 2 and the comparative cat food were used for feeding test in the same manner as in Test Example 1. The same feeding environment, feeding time and feeding amount were maintained for 6 months. The hair condition and stool abnormality of the pet cats as well as the probability of intestinal diseases and health condition were observed. The specific conditions are as follows: Figure 3 shown.

[0092] Figure 3 The data can preliminarily illustrate that the cat food provided by the present invention is helpful to reduce the probability of abnormal stool and intestinal diseases in pet cats. Compared with the control group, the pet cats in the embodiment group have better hair and spirits, are more responsive and active, and do not show signs of loss of appetite. Combined with a balanced nutritional combination, the healthy growth of pet cats can be effectively guaranteed.

[0093] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for preparing cat food with prebiotic stomach conditioning effect, characterized in that: The main ingredients of the cat food include meat, carbohydrates, fruits and vegetables, prebiotics and additives; The carbohydrates include potatoes and fat separated from the meat; The preparation method specifically comprises the following steps: Step S1: Sorting and cooking: Meat, potatoes, fruits and vegetables are sorted and quickly steamed for later use. Meat is further pressed to separate the cooked meat and liquid and fat in the meat, and the upper layer of fat is taken for later use; Step S2: Crushing process: The potatoes and fruits and vegetables processed in step S1 are crushed for later use, the cooked meat processed in step S1 is chopped, one third of which is taken to prepare freeze-dried meat particles, and the remaining cooked meat is crushed and screened into small meat particles and minced meat for later use; Step S3: Mixing ingredients: Pour the potato and fruit and vegetable powder, small meat particles, prebiotics and additives processed in step S2 into a mixing barrel, add the lower layer liquid of the cooked meat separated in step S1 and an appropriate amount of water, and stir evenly to obtain a mixed wet material; Step S4: Granulation and Forming: The mixed wet material after the treatment in step S3 is put into a granulation device for extrusion to obtain granules, and then granulated into cylindrical shaped granules with a diameter of 7.0 to 8.0 mm and a length of 5.0 to 6.0 mm by puffing; Step S5 Vacuum spraying: The formed particles obtained in step S4 are placed in a drum under a vacuum environment and sprayed with egg white liquid on the surface, and part of the sieved minced meat in step S2 is mixed with the formed particles for 3 to 5 minutes to be evenly coated, and the grease obtained in step S1 is sprayed on the outer layer again, and the remaining sieved minced meat and the minced meat crumbs produced by preparing freeze-dried meat particles are mixed with the particles again for 3 to 5 minutes to be evenly coated to obtain cat food blanks; Step S6 Baking and Packaging: The cat food obtained in step S5 is placed on a tray, conveyed through an oven via a conveyor belt for low-temperature baking, dehydrated and baked under gradient heating and cooling conditions in the oven, then cooled to room temperature and mixed with freeze-dried meat particles to obtain finished cat food, which is then bagged and sealed to ensure the storage and transportation of the cat food.

2. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: The specific parameters of the rapid steaming of potatoes and fruits and vegetables in step S1 are a steam pressure of 2 to 3 kg / cm2 and a steaming time of 5 to 15 seconds.

3. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: In step S2, the meat, potatoes, fruits and vegetables are all screened through a 30-mesh sieve, and the meat is crushed and then screened through a 60-80-mesh sieve to further separate small meat particles and minced meat.

4. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: In the step S4, the maximum temperature during the puffing and granulation is 100-130° C., the residence time is 10-15 seconds, and the internal pressure is 0.9-1.1 MPa.

5. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: In step S6, the oven temperature is 50-90°C, the overall temperature is set in a step-by-step heating and then cooling mode, the highest step temperature is 80-90°C, the high temperature time does not exceed 1 hour, and the overall low temperature baking is maintained, and the overall baking time is not less than 5 hours.

6. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: The meat is any one or a combination of chicken, duck, fish, beef, mutton and pork; The potato of the carbohydrate is any one of sweet potato and potato or a combination of the two, and the oil of the carbohydrate includes the oil separated from the meat in step S1 and additionally added fish oil.

7. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: The fruits and vegetables include vegetables and fruits, wherein the vegetables are any one of cabbage, Chinese cabbage, lettuce, spinach, celery and carrot or a combination thereof, and the fruits are any one of apple, banana, watermelon, strawberry and kiwi or a combination thereof, and the added ratio of the vegetables to the fruits is 1:0.8-1.

2.

8. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: The prebiotics are prepared by mixing manno-oligosaccharides, fructo-oligosaccharides, xylooligosaccharides and isomaltooligosaccharides in equal proportions, and one or more probiotic compositions of Streptococcus faecalis, Streptococcus lactis, brewer's yeast and Bacillus subtilis are added to the prebiotics.

9. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: The additives include trace amounts of vitamin preparations and mineral additives, wherein the vitamin preparations are composed of vitamin A, vitamin B, vitamin D, vitamin E and beta-carotene, and the minerals are a mixture of methionine iron chelate, methionine copper chelate, methionine zinc chelate, methionine manganese chelate, yeast selenium and calcium hydrogen phosphate; The additives also include Chinese herbal medicine, which is prepared by mixing Poria cocos, Atractylodes macrocephala, Licorice and Hawthorn powder.

10. The method for preparing cat food with prebiotic stomach conditioning effect according to claim 1, characterized in that: In step S5, the outer layer spraying material includes, in addition to oil, a microcapsule composition for surface mildew protection. The microcapsule composition is prepared from plant essential oil and plant gum dietary fiber. The plant essential oil is a composition of cinnamon essential oil, citrus essential oil and mint essential oil. The plant gum is a combination of one or more of guar gum, fenugreek gum and sesame gum. The microcapsule composition is obtained by stirring and embedding an aqueous solution of plant gum dietary fiber dextrin powder with the plant essential oil, vacuum filtering and freeze drying.

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