Basic daily ration additive for relieving gastroenteritis as well as preparation method and application of basic daily ration additive

Abstract

The invention relates to the technical field of pet food preparation, in particular to a basic ration additive for relieving gastroenteritis and a preparation method and application thereof. The catalyst comprises the following substances in parts by weight: 80-85 parts of a carrier; 5-10 parts of a yeast cell wall extract; 1-3 parts of enzymolysis oat fiber; 0.5 to 1 part of apple fiber; 0.1 to 0.3 part of ascorbic acid; 0.5 to 1 part of a prebiotic oligosaccharide compound; and 0.5-1 part of an antioxidant. Enzymatic oat fibers, apple fibers, ascorbic acid and prebiotic oligosaccharide compounds for improving intestinal tracts are added into the basic ration for cats to achieve a synergistic effect, so that diarrhea and intestinal inflammation symptoms of the cats during enterogastritis can be relieved.

Description

Technical Field

[0001] This invention relates to the field of pet food preparation technology, and in particular to a basic daily food additive for relieving gastroenteritis, its preparation method, and its uses. Background Technology

[0002] Gastroenteritis is often the result of a combination of factors. The most common is dietary issues, followed by infections such as bacteria (e.g., Salmonella), viruses (e.g., feline panleukopenia virus), and parasites (e.g., coccidia). Once these pathogens multiply in the intestines, they trigger inflammation. When the gastrointestinal tract is irritated or infected, the mucosal barrier is damaged, leading to a large accumulation of inflammatory cells (e.g., neutrophils), causing local edema, congestion, and even ulcers. Simultaneously, the number of beneficial bacteria in the intestines decreases, allowing harmful bacteria to multiply and further exacerbate the inflammation. Decreased digestive enzyme activity prevents proper food breakdown and nutrient absorption, causing symptoms such as diarrhea and vomiting in cats. With significant loss of water and electrolytes, dogs and cats may rapidly become dehydrated, potentially leading to metabolic acidosis or shock in severe cases. Typical manifestations of gastroenteritis are vomiting and diarrhea. Initially, vomiting may only involve undigested food, later turning into white foam or yellow bile, and in severe cases, blood. Diarrhea gradually changes from soft stools to watery stools, sometimes containing blood streaks or mucus.

[0003] The feline gut microbiota is highly diverse and complex, playing a crucial role in maintaining digestive, immune, and intestinal barrier functions. Under normal circumstances, these microbiota maintain a dynamic balance, promoting nutrient absorption, regulating immune responses, and preventing pathogen invasion. However, during gastroenteritis, this balance is disrupted, leading to a series of significant changes.

[0004] During gastroenteritis, the composition and function of the gut microbiota undergo significant changes. The number of beneficial bacteria (such as lactobacilli and bifidobacteria) may decrease, while the number of harmful bacteria (such as Escherichia coli and Salmonella) may increase. This dysbiosis can lead to impaired intestinal barrier function, increased intestinal permeability, and easier entry of harmful substances and pathogens into the bloodstream, triggering an inflammatory response. Furthermore, gastroenteritis can affect the metabolic function of the gut microbiota, reducing the production of short-chain fatty acids and further weakening the protective function of the intestinal mucosa.

[0005] During gastroenteritis, a cat's gut microbiota undergoes significant changes, leading to a decrease in beneficial bacteria, an increase in harmful bacteria, impaired intestinal barrier function, and exacerbated inflammatory responses. Therefore, restoring and maintaining a balanced gut microbiota is crucial for alleviating gastroenteritis symptoms and promoting recovery in cats.

[0006] Most treatments for gastroenteritis in cats involve administering anti-inflammatory drugs, injections, or IV drips, which often proves uncooperative and can cause stress for the cat. Currently, there are no food-based products that can treat gastroenteritis in cats.

[0007] On September 13, 2025, a search was conducted in the China Patent Publication Database using "apple fiber and oat fiber and feline gastroenteritis and yeast cell wall" as the abstract keywords and the option to allow synonym expansion was selected. No relevant literature was found.

[0008] On September 13, 2025, an abstract search was conducted on CNKI (China National Knowledge Infrastructure) for the search term "apple fiber and oat fiber and feline gastroenteritis and yeast cell wall," but no relevant literature was found.

[0009] On September 13, 2025, a search was conducted on the website of the United States Patent and Trademark Office for the search term "Apple fiber with oat fiber with cat gastroenteritis with yeast cell wall", but no relevant literature was found; the search URL is https: / / ppubs.uspto.gov / pubwebapp / .

[0010] On September 13, 2025, a search was conducted on WIPO's website https: / / patentscope2.wipo.int / for the search term "Apple fiber and oat fiber and cat gastroenteritis and yeast cell wal l", but no relevant literature was found.

[0011] On September 13, 2025, a search was conducted on the website of the Japan Patent Office (https: / / www.j-platpat.inpit.go.jp / ) for the search term "Apple fiber and oat fiber and cat gastroenteritis and yeast cell wal l", but no relevant literature was found.

[0012] It is completely different from the concept of this patent. Summary of the Invention

[0013] Purpose of the invention: To provide a more effective basic dietary additive for relieving gastroenteritis, as well as its preparation method and uses; specific objectives are detailed in the specific implementation section for several substantial technical effects.

[0014] To achieve the above objectives, the present invention adopts the following technical solution:

[0015] A basic dietary additive for relieving gastroenteritis, characterized in that it comprises the following substances in parts by weight: 80-85 parts carrier; 5-10 parts yeast cell wall extract; 1-3 parts enzymatically hydrolyzed oat fiber; 0.5-1 part apple fiber; 0.1-0.3 parts ascorbic acid; 0.5-1 part prebiotic oligosaccharide complex; and 0.5-1 part antioxidant.

[0016] A further technical solution of the present invention is that the carrier is selected from any one or more of puffed rice flour, wheat flour, yeast extract, and yeast cell wall.

[0017] A further technical solution of the present invention is that the extraction process of enzymatically hydrolyzed oat fiber is as follows:

[0018] Oat bran and α-amylase solution were mixed at a ratio of 1:10 (m / V), stirred and heated at 55°C for 40-60 min, then 3% NaOH was added, and stirred and heated at 85°C for 1.5-2 h. The suspension was centrifuged, and the pH was adjusted to 4-5 with 4% citric acid solution. After standing for 4-5 h, it was filtered at room temperature. The precipitate was washed with water until neutral, then dried in an oven until the moisture content was <8 parts, and then pulverized to 80-120 mesh.

[0019] A further technical solution of the present invention is that the prebiotic oligosaccharide complex is selected from at least two of galactooligosaccharides, isomaltooligosaccharides, and xylooligosaccharide complexes, with a weight ratio of 1:1 to 5:0.5 to 2. After the above materials are mixed evenly in a mixer, they are pulverized to 50-60 mesh.

[0020] A further technical solution of the present invention is that the antioxidant is selected from vitamin A, vitamin E, butylhydroquinone, butylated hydroxyanisole, butylated hydroxytoluene, propyl gallate, rosemary extract, or a combination thereof.

[0021] A further technical solution of the present invention is that the production process of yeast cell wall extract is as follows:

[0022] Yeast sludge from beer fermentation is autolyzed to obtain yeast hydrolysate. After centrifugation, yeast cell wall extract is obtained. This extract is then spray-dried to obtain yeast cell wall extract powder. The main components are mannan oligosaccharides and beta-glucan, which have a large surface area and can effectively adsorb harmful substances such as zearalenone and aflatoxin B1.

[0023] A further technical solution of the present invention is that the production process of apple fiber is as follows:

[0024] Apple processing byproducts are used as raw materials. After washing and drying (hot air drying at 50–60℃ to a moisture content ≤8%), a compound enzyme (cellulase and pectinase, 0.5–1.0%) is added under pH 4.5–5.0 and temperature 50–55℃ for 2–3 hours to remove protein, fat, and soluble sugar impurities. Subsequently, alkaline treatment (1–2% NaOH solution, 60–70℃, 30–45 minutes) is performed for further purification to obtain high-purity dietary fiber. The extracted material is then spray-dried (inlet air temperature 160–180℃, outlet air temperature 80–90℃) to a moisture content ≤5%, and then ultra-finely pulverized (particle size controlled at 0.04mm) to improve its solubility and functionality.

[0025] A further technical solution of the present invention is that a basic diet additive is added to the cat's daily food, and the food includes the following basic diet components by weight:

[0026] Chicken meal 20-30 parts, frozen chicken breast 20-25 parts, rice 15-20 parts, chicken fat 10-15 parts, chicken liver 5-8 parts, eggs 3-5 parts, cellulose 2-5 parts, beet pulp 1-2 parts, fish oil 0.5-1 part, vitamin and mineral premix 0.8-1.5 parts, dicalcium phosphate 0.5-2 parts, sodium chloride 0.5-1 part, methionine 0.1-2 parts, taurine 0.1-0.5 parts, choline chloride 0.1-0.5 parts.

[0027] A method for preparing a diet to alleviate gastroenteritis in dogs and cats, the method comprising the following steps:

[0028] Preparation of basic diet additive: The components of the basic diet additive for relieving gastroenteritis described above are mixed together in their respective amounts and mixed evenly in a conventional manner; the basic diet additive for relieving gastroenteritis is the basic diet additive for relieving gastroenteritis as described in any one of claims 1-5.

[0029] After mixing the basic diet components with the basic diet additive for relieving gastroenteritis, the mixture is pulverized to a 50-mesh powder to make extruded feed.

[0030] Yeast cell wall extract, enzymatically hydrolyzed oat fiber, apple fiber, ascorbic acid, prebiotic oligosaccharide complex, and antioxidants are used in combination as a medicine or food to relieve feline gastroenteritis. This invention, employing the above technical solution, has the following beneficial effects compared to existing technologies: This invention, considering the physiological characteristics of cats during gastroenteritis, adds enzymatically hydrolyzed oat fiber and apple fiber to the cat's basic diet, which can improve stool formation and water retention, promote intestinal peristalsis, and relieve diarrhea caused by gastroenteritis. The prebiotic oligosaccharide complex can promote the proliferation of beneficial intestinal bacteria and inhibit the growth of harmful bacteria. Ascorbic acid can effectively remove free radicals caused by inflammation and alleviate inflammatory responses. The addition of enzymatically hydrolyzed oat fiber, apple fiber, ascorbic acid, and prebiotic oligosaccharide complex to the cat's basic diet has a synergistic effect, which can alleviate diarrhea and intestinal inflammation symptoms in cats during gastroenteritis. Attached Figure Description

[0031] To further illustrate the present invention, the following description is provided in conjunction with the accompanying drawings:

[0032] Figure 1 This is a component diagram of the invention. Detailed Implementation

[0033] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0034] DF+ is an abbreviation for the additive of this invention.

[0035] The purpose of this invention is to provide a basic dietary additive for alleviating gastroenteritis and its preparation method. By combining different types of dietary fiber, it promotes the proliferation of beneficial bacteria in the intestines, reduces water content in soft stools, and promotes stool formation. Furthermore, it alleviates intestinal inflammation by containing ascorbic acid and antioxidants. To address the above problems, this invention provides a basic dietary additive for alleviating gastroenteritis and its preparation method, comprising the following components in parts by weight:

[0036] carrier 80-85 copies Yeast cell wall extract 5-10 servings Enzymatic hydrolyzed oat fiber 1-3 servings Apple fiber 0.5-1 serving ascorbic acid 0.1-0.3 portions Prebiotic oligosaccharide complex 0.5-1 serving antioxidants 0.5-1 serving

[0037] Yeast cell wall extract, enzymatically hydrolyzed oat fiber, apple fiber, ascorbic acid, prebiotic oligosaccharide complexes (galacto-oligosaccharides, isomaltooligosaccharides, xyloo-oligosaccharides), and antioxidants (vitamin A, vitamin E, etc.) work together to effectively alleviate symptoms of feline gastroenteritis. Yeast cell wall extract enhances the cat's immune defenses and reduces pathogen adhesion through its immunomodulatory and intestinal barrier repair functions. Enzymatically hydrolyzed oat fiber and apple fiber, as prebiotics, regulate the gut microbiota, inhibit harmful bacteria, and their viscous gel protects the intestinal mucosa, promotes intestinal barrier repair, and alleviates inflammation. Ascorbic acid and vitamin E, with their antioxidant properties, neutralize free radicals, reduce oxidative stress damage, and enhance immune system function. Oligosaccharides selectively stimulate the growth of beneficial bacteria, further optimizing the gut microbiota. Vitamin A helps repair the intestinal mucosa and maintain its normal function.

[0038] The further technical solution of these inventions lies in the synergistic effect of the components, which reduces intestinal discomfort caused by gastroenteritis and promotes the recovery of cats.

[0039] In another preferred embodiment, the carrier is selected from puffed rice flour, wheat flour, yeast extract, yeast cell wall, or a combination thereof, in 95 parts by weight.

[0040] In another preferred embodiment, the enzymatically hydrolyzed oat fiber is 1-3 parts by weight.

[0041] In another preferred embodiment, the apple fiber comprises 0.5-1 parts by weight.

[0042] In another preferred embodiment, the vitamin complex is present in 1-3 parts by weight.

[0043] In another preferred embodiment, the ascorbic acid is present in parts by weight of 0.1-0.3 parts.

[0044] In another preferred embodiment, the prebiotic oligosaccharide complex is 0.5-1 parts by weight.

[0045] In another preferred embodiment, the antioxidant is present in a weight fraction of 0.5-1 parts.

[0046] In another preferred embodiment, the extraction process of enzymatically hydrolyzed oat fiber is as follows:

[0047] Oat bran and α-amylase solution were mixed at a ratio of 1:10 (m / V), stirred and heated at 55°C for 40–60 min, then 3% NaOH was added, and the mixture was stirred and heated at 85°C for 1.5–2 h. The suspension was centrifuged, and the pH was adjusted to 4–5 with 4% citric acid solution. After standing for 4–5 h, the suspension was filtered at room temperature. The precipitate was washed with water until neutral, then dried in an oven until the moisture content was <8 parts, and finally pulverized to 80–120 mesh.

[0048] In another preferred embodiment, the prebiotic oligosaccharide complex is selected from at least two of galactooligosaccharides, isomaltooligosaccharides, and xylooligosaccharide complexes, with a weight ratio of 1:1 to 5:0.5 to 2. After the above materials are mixed evenly in a mixer, they are pulverized to 50-60 mesh.

[0049] In another preferred embodiment, the antioxidant is selected from vitamin A, vitamin E, butylhydroquinone, butylated hydroxyanisole, butylated hydroxytoluene, propyl gallate, rosemary extract, or a combination thereof.

[0050] Nutritional needs and nursing care points: During the acute phase of gastroenteritis (frequent vomiting / diarrhea), it is necessary to reduce food intake to allow the gastrointestinal tract to rest. Gradually introduce high-energy, easily digestible foods that help to astringe stools and regulate gut microbiota. This will alleviate irritation to the gastrointestinal tract, reduce vomiting and reflux, and relieve diarrhea.

[0051] Oat fiber is a dietary fiber extracted from oats, primarily derived from the outer shell of the oat. The total dietary fiber content of oat fiber is typically ≥70 parts per 100 grams, including soluble fiber (such as beta-glucan) and insoluble fiber (such as cellulose, hemicellulose, and lignin). Appropriate enzymatic hydrolysis can increase the content of soluble fiber, improve stool water retention, reduce excess water in the large intestine, and significantly increase the content of free phenols in oats.

[0052] Apple fiber is rich in both soluble and insoluble fiber, offering numerous health benefits. Soluble fiber, such as pectin, produces short-chain fatty acids (SCFAs) through fermentation. These metabolites help strengthen the intestinal barrier, regulate lipid and glucose metabolism, modulate the immune system, and have anti-inflammatory effects. Insoluble fiber, primarily found in apple peels, increases stool volume, promotes intestinal motility, and effectively prevents constipation. Apple fiber also enhances satiety, helping to control weight.

[0053] The soluble fibers from apple and oat fiber work synergistically to promote the growth of beneficial bacteria in the gut and improve the balance of gut microbiota.

[0054] The present invention, employing the above technical solution, has the following beneficial effects compared to the prior art:

[0055] In another aspect, the present invention provides a basic diet for alleviating gastroenteritis in dogs and cats, which includes the application of the aforementioned basic diet additive "DF+" for alleviating gastroenteritis in dogs and cats.

[0056] In another preferred embodiment, the diet comprises the following basal diet components in parts by weight:

[0057] Chicken meal 20-30 parts, frozen chicken breast 20-25 parts, rice 15-20 parts, chicken fat 10-15 parts, chicken liver 5-8 parts, eggs 3-5 parts, cellulose 2-5 parts, beet pulp 1-2 parts, fish oil 0.5-1 part, vitamin and mineral premix 0.8-1.5 parts, dicalcium phosphate 0.5-2 parts, sodium chloride 0.5-1 part, methionine 0.1-2 parts, taurine 0.1-0.5 parts, choline chloride 0.1-0.5 parts

[0058] In another aspect, the present invention provides a method for preparing the above-mentioned diet for alleviating gastroenteritis in dogs and cats, the preparation method comprising the following steps:

[0059] Preparation of basic diet additive: Mix the components of the above-mentioned basic diet additive "DF+" together in the specified amounts and mix evenly in a conventional manner;

[0060] The basic diet components are mixed with the basic diet additive "DF+", and then pulverized into 50-mesh powder to make extruded feed.

[0061] Table 1 shows the impact of cat food with added "DF+" and food without added "DF+" on the fecal score of pet cats;

[0062] Table 2 shows the effect of cat food with added "DF+" and cat food without added "DF+" on the antioxidant index of pet cats;

[0063] Table 3 shows the effects of cat food with added "DF+" and food without added "DF+" on the blood immune indicators of pet cats;

[0065] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. The experimental period was 30 days. During the experimental period, 20 healthy pet cats, weighing 3.5±0.5 kg and randomly selected by sex, were divided into two groups of 10 cats each. One group (experimental group) was fed cat food supplemented with "DF+", while the other group (control group) was fed control food.

[0066] Each cat was housed individually in a pet cat cage (1.6m × 0.7m × 0.7m). Necessary vaccinations and deworming were administered before the trial. The litter box was changed daily, and the enclosures were cleaned and maintained to ensure cleanliness.

[0067] During the trial period, each cat in each group was fed 100g of cat food and 300mL of water every morning at 8:30. During the trial period, the feeding status and mental state of all pets were observed, as well as any adverse reactions such as aversion, diarrhea, or vomiting.

[0068] The experimental group was fed cat food supplemented with "DF+" with the following components:

[0069] Chicken meal 30 parts, frozen chicken breast 20 parts, rice 15 parts, chicken fat 10 parts, chicken liver 5 parts, egg 4.5 parts, fiber 2 parts, beet pulp 2 parts, fish oil 1 part, vitamin and mineral premix 1 part, dicalcium phosphate 1 part, sodium chloride 0.5 parts, methionine 2 parts, taurine 0.5 parts, choline chloride 0.5 parts, DF+ premix 5 parts

[0070] The components of the “DF+” premix are as follows:

[0071] 89 parts puffed rice flour, 5 parts yeast cell wall extract, 3 parts enzymatically hydrolyzed oat fiber, 1 part apple fiber, 0.3 parts ascorbic acid, 0.7 parts prebiotic oligosaccharide complex, and 1 part vitamin E.

[0072] The control group was fed the following cat food composition:

[0073] 30 parts chicken meal, 20 parts frozen chicken breast, 20 parts rice, 10 parts chicken fat, 5 parts chicken liver, 4.5 parts eggs, 2 parts cellulose, 2 parts beet pulp, 1 part fish oil, 1 part vitamin and mineral premix, 1 part dicalcium phosphate, 0.5 parts sodium chloride, 2 parts methionine, 0.5 parts taurine, and 0.5 parts choline chloride.

[0074] Fecal Score: Before feeding each day, refer to the following text to score the appearance of each pet cat's feces.

[0075] Appearance and shape rating

[0076] 5. Hard, dry, flaky or pebble-like, prone to cracking.

[0077] 4. Molded, with cracks

[0078] 3. Soft, with a clear shape, and free of cracks.

[0079] 2. High humidity, not liquid, with visible moisture on the outside of the feces.

[0080] 1. Completely liquid feces (no substantial solid structure)

[0081] Blood parameters were measured. After the trial period, the veterinary hospital collected blood from the forelimb veins of each animal and injected it into a special blood collection tube. Blood antioxidant parameters such as superoxide dismutase (SOD), total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), catalase (CAT), and malondialdehyde (MDA) were measured. Simultaneously, blood immunoglobulins IgA, IgM, IgD, and IgG were also measured.

[0082] Table 1 shows the effect of cat food with added "DF+" on pet cat feces.

[0083]

[0084] As can be seen from Table 1, the fecal score of pet cats in the experimental group fed with the cat food added with "DF+" was significantly lower than that in the control group (P<0.05), and the fecal pH of pet cats in the experimental group was significantly higher than that in the control group (P<0.05). This indicates that the cat food added with "DF+" has an auxiliary effect on the fecal formation of pet cats.

[0085] Table 2 Effects of the cat food added with "DF+" on the antioxidant indexes of pet cats

[0086]

[0087] As can be seen from Table 2, there is a significant upward trend in the blood SOD index of pet cats in the experimental group fed with the cat food added with "DF+" (P<0.05), and there are no significant differences in other immune indexes and blood antioxidant indexes (P>0.05). The increase in SOD indicates that the antioxidant ability and the ability to scavenge free radicals of pet cats have increased.

[0088] Table 3 Effects of the cat food added with "DF+" on the blood immune indexes of pet cats

[0089]

[0090]

[0091] As can be seen from Table 3, there is a significant upward trend in the blood IgA index of pet cats in the experimental group fed with the cat food added with "DF+" (0.05<P<0.10), and there are no significant differences in other immune indexes and blood antioxidant indexes (P>0.05). The increase in IgA indicates that the immunity of pet cats in the experimental group has increased.

[0092] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention.

[0093] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention.

Claims

1. A basic dietary supplement for relieving gastroenteritis, characterized in that, It comprises the following substances in parts by weight: 80-85 parts carrier; 5-10 parts yeast cell wall extract; 1-3 parts enzymatically hydrolyzed oat fiber; 0.5-1 part apple fiber; and 0.1-0.3 parts ascorbic acid. 0.5-1 part of prebiotic oligosaccharide complex; 0.5-1 part of antioxidant.

2. The basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, The carrier is selected from any one or more of puffed rice flour, wheat flour, yeast extract, and yeast cell wall.

3. The basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, The extraction process of enzymatically hydrolyzed oat fiber is as follows: Oat bran and α-amylase solution were mixed at a ratio of 1:10 (m / V), stirred and heated at 55°C for 40-60 min, then 3% NaOH was added, and stirred and heated at 85°C for 1.5-2 h. The suspension was centrifuged, and the pH was adjusted to 4-5 with 4% citric acid solution. After standing for 4-5 h, it was filtered at room temperature. The precipitate was washed with water until neutral, and then dried in an oven until the moisture content was <8 parts. Finally, it was pulverized to 80-120 mesh.

4. The basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, The prebiotic oligosaccharide complex is selected from at least two of the following: galactooligosaccharide, isomaltooligosaccharide, and xylooligosaccharide complex, with a weight ratio of 1:1~5:0.5~2. After the above materials are mixed evenly in a mixer, they are pulverized to 50-60 mesh.

5. A basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, The antioxidant is selected from vitamin A, vitamin E, butylhydroquinone, butylated hydroxyanisole, butylated hydroxytoluene, propyl gallate, rosemary extract, or a combination thereof.

6. A basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, Basic dietary supplements are added to a cat's daily food. The diet includes the following basic dietary components by weight: Chicken meal 20-30 parts, frozen chicken breast 20-25 parts, rice 15-20 parts, chicken fat 10-15 parts, chicken liver 5-8 parts, eggs 3-5 parts, cellulose 2-5 parts, beet pulp 1-2 parts, fish oil 0.5-1 part, vitamin and mineral premix 0.8-1.5 parts, dicalcium phosphate 0.5-2 parts, sodium chloride 0.5-1 part, methionine 0.1-2 parts, taurine 0.1-0.5 parts, choline chloride 0.1-0.5 parts.

7. A basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, The production process of yeast cell wall extract is as follows: Yeast sludge from beer fermentation is autolyzed to obtain yeast hydrolysate. After centrifugation, yeast cell wall extract is obtained. This extract is then spray-dried to obtain yeast cell wall extract powder. The main components are mannan oligosaccharides and beta-glucan, which have a large surface area and can effectively adsorb harmful substances such as zearalenone and aflatoxin B1.

8. A basic dietary supplement for relieving gastroenteritis as described in claim 1, characterized in that, The production process of apple fiber is as follows: Apple processing byproducts are used as raw materials. After washing and drying (hot air drying at 50–60℃ until the moisture content is ≤8%), compound enzymes (cellulase and pectinase, 0.5–1.0%) are added under pH 4.5–5.0 and temperature 50–55℃ for 2–3 hours to remove protein, fat and soluble sugar impurities. Then, the material is further purified by alkaline treatment (1–2% NaOH solution, 60–70℃, treatment for 30–45 minutes) to obtain high-purity dietary fiber. The extracted material is spray dried (inlet air temperature 160–180℃, outlet air temperature 80–90℃) until the moisture content is ≤5%, and then its solubility and functionality are improved by ultra-fine grinding (particle size controlled at 0.04mm).

9. A method for preparing a diet to alleviate gastroenteritis in dogs and cats, the preparation method comprising the following steps: Preparation of basic diet additive: The components of the above-mentioned basic diet additive for relieving gastroenteritis are mixed together in their respective amounts and mixed evenly in a conventional manner; the basic diet additive for relieving gastroenteritis is the basic diet additive for relieving gastroenteritis as described in any one of claims 1-5. After mixing the basic diet components with the basic diet additive for relieving gastroenteritis, the mixture is pulverized to a 50-mesh powder to make extruded feed.

10. Yeast cell wall extract, enzymatically hydrolyzed oat fiber, apple fiber, ascorbic acid, prebiotic oligosaccharide complex, and antioxidants are used together in medications or foods to relieve feline gastroenteritis.

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