Calcium supplement for animals and method for preparing the same

Abstract

The application provides an animal calcium supplement product and a preparation method thereof, and belongs to the technical field of animal health products. The animal calcium supplement product comprises calcium hydrogen phosphate, milk calcium, a natural plant product, lactose-free milk powder, animal oil, animal hydrolysate, fructo-oligosaccharide, casein phosphopeptide, a thickening agent, a microbial fermentation product, L-lysine hydrochloride, collagen, a preservative, a natural antioxidant and vitamin D3. The animal calcium supplement product provided by the application provides a comprehensive solution by matching and combining different components, so as to support the bone health of animals, improve the nutrient absorption efficiency, and comprehensively enhance the overall health status of animals.

Description

Technical Field

[0001] The present invention belongs to the technical field of animal health products, and in particular relates to an animal calcium supplement product and a preparation method thereof. Background Art

[0002] Calcium is an essential mineral in animals, playing a key role in supporting bone structure, nerve conduction, muscle function, and many other biological processes. For animals, especially domestic pets, livestock, and wildlife, an adequate supply of calcium is crucial for maintaining their health. As the pet market continues to develop and become more specialized, pet health and nutritional management are gaining increasing attention, with calcium intake and management becoming a core topic.

[0003] However, despite the availability of a variety of calcium supplements on the market, existing calcium supplementation technologies still face several challenges. Currently, commonly used calcium supplements are primarily based on inorganic calcium compounds, such as calcium phosphate and calcium chloride. While these inorganic calcium sources have high calcium content, their absorption rates in animals are generally low due to limitations in their chemical structure. Furthermore, while organic calcium compounds, such as calcium citrate, are easier for animals to absorb, their calcium content is relatively low, and due to the presence of large organic groups, the overall effect remains unsatisfactory.

[0004] The main drawbacks of existing technologies lie in the selection of calcium sources and the efficiency of calcium absorption. While inorganic calcium offers a lower cost, its low absorption rate leads to inadequate calcium utilization in animals, potentially causing various health issues such as calcium deficiency and osteoporosis. While organic calcium has a better absorption rate, its high cost and insufficient calcium content make it unable to meet the growing calcium needs of pets and livestock, especially during rapid growth or breeding periods.

[0005] In summary, existing calcium supplementation technologies have significant limitations in animal health management, particularly in terms of calcium bioavailability and economic efficiency. These limitations not only impact the overall health of pets and livestock but also restrict the further development of related product markets. Therefore, finding an efficient and cost-effective calcium supplementation method to improve animal calcium absorption and utilization efficiency is an urgent challenge in the field of animal health technology. Summary of the Invention

[0006] To solve the above problems, the present invention provides an animal calcium supplement product, comprising: calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation product, L-lysine hydrochloride, collagen, preservatives, natural antioxidants and vitamin D3;

[0007] Preferably, the natural plant product comprises at least one of sucrose, yucca powder and marigold powder;

[0008] Preferably, the lactose-free milk powder comprises at least one of lactose-free goat milk powder and lactose-free cow milk powder;

[0009] Preferably, the animal hydrolyzate comprises at least one of beef hydrolyzate paste, chicken hydrolyzate powder and chicken hydrolyzate paste;

[0010] Preferably, the microbial fermentation product comprises at least one of yeast hydrolysate, fermented soybean meal and fermented apple pomace;

[0011] Preferably, the preservative comprises at least one of potassium sorbate, sodium benzoate, and citric acid;

[0012] Preferably, the natural antioxidant comprises at least one of natural vitamin E, rosemary extract, and L-ascorbic acid;

[0013] Preferably, the animal oil comprises at least one of chicken oil, fish oil, beef tallow and duck fat;

[0014] Preferably, the thickener comprises at least one of pectin, gellan gum and sodium carboxymethyl cellulose.

[0015] Preferably, the animal calcium supplement product comprises the following components in parts by weight:

[0016] 2-20 parts of dicalcium phosphate; 2-20 parts of lactic calcium; 1-10 parts of natural plant products; 1-10 parts of lactose-free milk powder; 1-10 parts of animal oil; 1-10 parts of animal hydrolysate; 1-10 parts of fructooligosaccharides; 0.5-5 parts of casein phosphopeptide; 0.5-5 parts of thickener; 0.5-5 parts of microbial fermentation product; 0.5-5 parts of L-lysine hydrochloride; 0.05-0.5 parts of collagen; 0.05-0.5 parts of preservatives; 0.05-0.5 parts of natural antioxidants; 0.005-0.1 parts of vitamin D3.

[0017] Preferably, the animal calcium supplement product is in the form of composite sandwich particles;

[0018] The composite sandwich particles comprise a calcium supplement core comprising calcium hydrogen phosphate, lactic calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation product, L-lysine hydrochloride, collagen, preservative, natural antioxidant and vitamin D3, and further comprise a gastric acid secretion-promoting shell coated on the outer surface of the calcium supplement core;

[0019] The particles of the animal calcium supplement product are composite sandwich particles consisting of the calcium supplement core and a gastric acid secretion promoting shell coated on the outer surface of the calcium supplement core.

[0020] Preferably, the gastric acid secretion promoting shell comprises the following components:

[0021] Meat meal, starch, animal fat and thickeners;

[0022] Preferably, the meat meal comprises at least one of beef meal, mutton meal and chicken meal;

[0023] Preferably, the starch comprises at least one of potato starch, corn starch and wheat starch;

[0024] Preferably, the animal oil comprises at least one of chicken oil, fish oil, beef tallow and duck fat;

[0025] Preferably, the thickener comprises at least one of pectin, gellan gum and sodium carboxymethyl cellulose.

[0026] Preferably, the gastric acid secretion promoting shell comprises the following components in parts by weight:

[0027] 60~90 parts of meat powder; 3~30 parts of starch; 1~10 parts of animal oil; 0.2~2 parts of thickener.

[0028] In addition, to solve the above problems, the present invention also provides a method for preparing the above-mentioned animal calcium supplement product, comprising:

[0029] preparing mixed wet materials;

[0030] forming the mixed wet material into strips;

[0031] steaming the strips and cutting them into wet granules;

[0032] Drying the wet granules to obtain the animal calcium supplement product;

[0033] Preferably, the step of forming the mixed wet material into a strip comprises: placing the mixed wet material into a strip material production device to prepare the strip;

[0034] Preferably, the temperature of the steaming treatment is 85°C to 95°C;

[0035] Preferably, the steaming time is 20 minutes to 30 minutes.

[0036] Preferably, the drying process is freeze-drying; the conditions of the freeze-drying process include:

[0037] Freezing temperature: -50℃~-40℃; Freezing time: at least 24 hours;

[0038] Preferably, the freeze drying equipment of the freeze drying process is set as follows:

[0039] The cold trap temperature is -45°C; the heating rate is 10°C / h; the final temperature is 60°C; the vacuum degree is 10-70Pa;

[0040] Preferably, during the freeze-drying process, the moisture content of the animal calcium supplement product is controlled between 2% and 5%.

[0041] Preferably, the mixed wet material includes calcium-supplemented core wet material;

[0042] The preparation method of the calcium-supplemented core wet material comprises:

[0043] Calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation product, L-lysine hydrochloride, collagen, preservative, natural antioxidant, vitamin D3, and water are mixed and heat-treated to obtain the calcium supplement core wet material.

[0044] Preferably, the calcium hydrogen phosphate, lactic calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation product, L-lysine hydrochloride, collagen, preservative, natural antioxidant, vitamin D3, and water are mixed and heat-treated to obtain the calcium supplement core wet material, comprising:

[0045] Based on a unit dose of 100 parts, 2 to 20 parts of calcium hydrogen phosphate, 2 to 20 parts of milk calcium, 1 to 10 parts of natural plant products, 1 to 10 parts of lactose-free milk powder, 1 to 10 parts of animal oil, 1 to 10 parts of animal hydrolyzate, 1 to 10 parts of fructooligosaccharide, 0.5 to 5 parts of casein phosphopeptide, 0.5 to 5 parts of microbial fermentation product, 0.5 to 5 parts of L-lysine hydrochloride, 0.05 to 0.5 parts of preservatives, 0.05 to 0.5 parts of natural antioxidants, 0.005 to 0.1 parts of vitamin D3, and water are mixed to obtain a core slurry;

[0046] 0.5 to 5 parts of thickener are added to the core slurry, mixed, heated to 70° C. to 80° C., and then 0.05 to 0.5 parts of collagen are added, and the mixture is heated to boiling. After cooling, the calcium-supplemented core wet material is obtained.

[0047] Preferably, the mixed wet material further comprises a shell wet material having the function of promoting gastric acid secretion;

[0048] The preparation method of the gastric acid secretion promoting shell wet material comprises:

[0049] Mixing meat powder, starch, animal oil, thickener, and water to obtain the gastric acid secretion promoting shell wet material;

[0050] Preferably, the meat powder, starch, animal oil, thickener, and water are mixed to obtain the gastric acid secretion promoting shell wet material, comprising:

[0051] Based on a unit dose of 100 parts, 60 to 90 parts of meat powder, 3 to 30 parts of starch, 1 to 10 parts of animal oil, 0.2 to 2 parts of thickener, and water are mixed to obtain the wet shell material with the function of promoting gastric acid secretion.

[0052] Preferably, the step of forming the mixed wet material into strips comprises:

[0053] The gastric acid secretion promoting function shell wet material and the calcium supplementing core wet material are placed in two strip material production devices respectively, and the strip material sandwiched by the gastric acid secretion promoting function shell wet material and the calcium supplementing core wet material is extruded simultaneously;

[0054] Preferably, in the strip, the diameter of the calcium-supplemented core wet material is 0.5 cm;

[0055] Preferably, in the strip, the outer diameter of the wet material of the gastric acid secretion promoting shell is 0.7 cm.

[0056] The present invention provides an animal calcium supplement product and a preparation method thereof, wherein the animal calcium supplement product comprises: calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, a thickener, a microbial fermentation product, L-lysine hydrochloride, collagen, a preservative, a natural antioxidant and vitamin D3.

[0057] The animal calcium supplement product provided by the present invention has the following beneficial effects:

[0058] (1) Multi-source calcium supplementation: By combining inorganic calcium (dicalcium phosphate) and organic calcium (milk calcium), this product can take advantage of the high calcium content of inorganic calcium and the high absorption rate of organic calcium. This combination helps provide a more balanced calcium supplement, ensuring that animals can absorb and utilize calcium more effectively.

[0059] (2) Enhanced absorption and utilization: Adding specific bioactive peptides such as casein phosphopeptides can promote calcium absorption. L-lysine hydrochloride also helps improve calcium absorption and bioavailability because lysine can bind to calcium to form an easily absorbed complex.

[0060] (3) Comprehensive nutritional support: The ingredients contained in this product, such as natural plant products, animal hydrolyzates, and fructooligosaccharides, not only provide additional minerals and vitamins, but also promote intestinal health and enhance the immune system. The addition of collagen helps support joint and cartilage health and is suitable for elderly animals or those with joint problems.

[0061] (4) Strong adaptability: The use of lactose-free milk powder allows animals that are lactose-intolerant to use this product, expanding the scope of application.

[0062] (5) Synergistic effect of vitamin D3: Vitamin D3 is indispensable for calcium absorption. It can help regulate the metabolism of calcium and phosphorus in animals and ensure the effective utilization of calcium.

[0063] In short, this animal calcium supplement product provides a comprehensive solution through the compatibility and combination of different components to support the animal's bone health, improve nutrient absorption efficiency, and comprehensively enhance the animal's overall health. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 Schematic diagrams of the structure of the composite sandwich particles according to the present invention at different angles (A is a main view, B is a top view, and C is a three-dimensional view);

[0065] Figure 2 Schematic diagram of the cross-section structure of the composite sandwich particle in an embodiment of the present invention;

[0066] Figure 3 Schematic diagram of the three-dimensional structure of the composite sandwich particle including strip-shaped grooves in an embodiment of the present invention;

[0067] Figure 4 Schematic diagram of the top view of the composite sandwich particles including different strip-shaped grooves in an embodiment of the present invention;

[0068] Figure 5 This is a schematic structural diagram of a cross-section of a composite sandwich particle in an embodiment of the present invention, in which an animal oil layer and freeze-dried meat powder are provided in a strip-shaped groove;

[0069] Figure 6 Schematic diagram of the process for preparing composite sandwich particles in an embodiment of the present invention.

[0070] Reference numerals:

[0071] 100, animal calcium supplement product; 1, composite sandwich granule; 11, calcium supplement core; 12, shell with gastric acid secretion promoting function; 121, strip groove; 1211, linear groove; 1212, cross groove; 122, animal oil layer; 123, freeze-dried meat powder. DETAILED DESCRIPTION

[0072] The technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0073] In the embodiments of the present application, an animal calcium supplement product is provided, which comprises: calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolysate, fructo-oligosaccharide, casein phosphopeptide, thickening agent, microbial fermentation products, L-lysine hydrochloride, collagen, preservative, natural antioxidant and vitamin D3.

[0074] In the above embodiments of the present application, the animals targeted can include but are not limited to pets, domestic livestock, wild animals, etc. Among them, it can be targeted at pets, such as dogs, cats and other animals.

[0075] The animal calcium supplement product can be at least one of food (such as staple food, snack), health care product and medicine.

[0076] The form or dosage form of the animal calcium supplement product can include but is not limited to tablets, granules, powders, pills, oral liquids, injection needles and microneedles, etc. In addition, it can also be other forms suitable for administration to animals and conducive to the absorption of calcium, which will not be described here.

[0077] The animal calcium supplement product includes a plurality of different components, each of which has a specific function and effect, as follows:

[0078] (1) Calcium hydrogen phosphate: This is an inorganic calcium source containing a high proportion of calcium. The addition of calcium hydrogen phosphate is to provide a stable calcium content. Although its absorption rate is not as high as that of organic calcium, it has a lower cost, which can reduce the overall cost of the product while ensuring efficient calcium supplementation and safety.

[0079] (2) Milk calcium: an organic calcium source extracted from milk, which is more easily absorbed by the animal body than inorganic calcium. Milk calcium not only provides calcium, but also contains other minerals and trace elements that help calcium absorption. This calcium source can improve the overall absorption efficiency of the calcium supplement product.

[0080] (3) Natural plant products: These can include plant extracts rich in trace minerals and vitamins, which help to improve the overall nutritional status of animals, thereby indirectly promoting the absorption and utilization of calcium.

[0081] (4) Lactose-free milk powder: Provides protein and other nutrients to lactose-intolerant animals without causing discomfort. This makes calcium supplements suitable for a wider range of animal groups. For example, cats are lactose-intolerant animals. Most adult cats lack sufficient lactase, an enzyme required to digest lactose (the sugar in milk). Therefore, when cats consume milk or dairy products containing lactose, they may not be able to fully digest these sugars, resulting in indigestion, diarrhea, or gastrointestinal discomfort. For calcium supplements, it is important to choose a lactose-free formula for cats or other lactose-intolerant animals to avoid causing unnecessary gastrointestinal problems.

[0082] (5) Animal oils: They mainly provide energy and essential fatty acids, help dissolve and transport fat-soluble vitamins such as vitamin D, which are essential for calcium absorption.

[0083] (6) Animal hydrolysates: These are small molecule proteins and amino acids obtained by hydrolysis of animal proteins. They are easy to absorb, can improve nutritional efficiency, and support intestinal health.

[0084] (7) Fructooligosaccharide: A natural prebiotic that helps promote the growth of a healthy gut microbiome, which is important for nutrient absorption and overall health.

[0085] (8) Casein phosphopeptide: It is a bioactive peptide that can improve calcium absorption and help enhance the bioavailability of calcium, especially in the absorption of organic calcium.

[0086] (9) Thickeners: used to improve the taste and stability of the product, making it easier to mix and store while ensuring even distribution of nutrients.

[0087] (10) Microbial fermentation products: These products may contain probiotics, which help maintain intestinal health and improve the absorption of nutrients, especially minerals and vitamins.

[0088] (11) L-Lysine hydrochloride: Lysine is an essential amino acid that helps optimize the absorption and utilization of calcium by binding to calcium to form a more absorbable complex.

[0089] (12) Collagen: It is beneficial for supporting the joint health and overall bone strength of animals, especially while supplementing calcium, helping to improve the health of bones and soft tissues.

[0090] (13) Preservatives: Ensure the stability and safety of the product during its shelf life and prevent microbial contamination.

[0091] (14) Natural antioxidants: Help prevent product oxidation, maintain the effectiveness and safety of active ingredients, and reduce dependence on chemical preservatives.

[0092] (15) Vitamin D3: A vital vitamin that promotes the absorption and metabolism of calcium and phosphorus, enhances the bioavailability of calcium, and is an indispensable component of calcium absorption.

[0093] Taking calcium supplements without vitamin D3 can easily reduce calcium absorption efficiency, thereby affecting calcium utilization and retention. Specifically, these include: reduced absorption rate. Vitamin D3 is a key factor in promoting calcium absorption. Without sufficient vitamin D3, the intestinal absorption capacity of calcium is significantly reduced, resulting in ineffective utilization of supplemented calcium; increased calcium excretion. Since vitamin D3 helps regulate renal calcium reabsorption, a vitamin D3 deficiency may lead to reduced renal calcium reabsorption, resulting in increased calcium excretion in the urine; fluctuating blood calcium levels. Vitamin D3 helps maintain stable blood calcium levels. A vitamin D3 deficiency can cause fluctuations in blood calcium levels and affect calcium balance; impaired bone health. Due to reduced calcium absorption and utilization efficiency, long-term vitamin D3 deficiency can lead to bone health problems such as osteoporosis and an increased risk of fractures; metabolic disorders. Vitamin D3 is also involved in regulating calcium and phosphorus metabolism in the body. A vitamin D3 deficiency can lead to disorders in calcium and phosphorus metabolism, affecting normal bone development and maintenance; and impacts on other nutrients. Vitamin D3 also affects the absorption of other nutrients, such as phosphorus. The absorption and utilization of calcium and phosphorus are interdependent. Vitamin D3 deficiency may affect the absorption of phosphorus; immune function impact. Vitamin D3 has a positive effect on the immune system. Vitamin D3 deficiency may affect the pet's immune function and increase the risk of infection; overall health impact. Long-term vitamin D3 deficiency not only affects bone health, but may also have a negative impact on the pet's overall health, including muscle function, nervous system health, etc.

[0094] Therefore, in the embodiments of the present application, in order to ensure the effectiveness and safety of animal calcium supplement products, vitamin D3 is added to improve the absorption rate of calcium, maintain calcium balance, and support bone health.

[0095] These ingredients work together to not only provide a highly effective calcium supplement solution, but also support the overall health of the animal, increasing the product's overall calcium supplementation performance and efficiency, as well as its competitiveness and appeal in the market.

[0096] In short, this animal calcium supplement product provides a comprehensive solution through the compatibility and combination of different components to support the animal's bone health, improve nutrient absorption efficiency, and comprehensively enhance the animal's overall health.

[0097] Furthermore, the natural plant product includes at least one of sucrose, yucca powder and marigold powder;

[0098] Sucrose is commonly used as a sweetener to improve the taste of products.

[0099] Yucca powder contains a variety of beneficial compounds and has certain anti-inflammatory and antioxidant effects.

[0100] Marigold powder, rich in lutein and zeaxanthin, which are beneficial for eye health, also helps to increase the antioxidant properties of the product.

[0101] Furthermore, the lactose-free milk powder includes at least one of lactose-free goat milk powder and lactose-free cow milk powder;

[0102] As mentioned above, lactose-free goat milk powder and lactose-free cow milk powder: provide high-quality protein and other nutrients to avoid digestive problems in lactose-intolerant animals such as cats.

[0103] Further, the animal hydrolyzate includes at least one of beef hydrolyzate paste, chicken hydrolyzate powder and chicken hydrolyzate paste;

[0104] Above, Beef Hydrolyzed Paste, Chicken Hydrolyzed Powder and Chicken Hydrolyzed Paste: provide easily digestible protein and amino acids to help enhance nutrient absorption and utilization.

[0105] Furthermore, the microbial fermentation product includes at least one of yeast hydrolysate, fermented soybean meal and fermented apple pomace;

[0106] As mentioned above, yeast hydrolysate, fermented soybean meal and fermented apple pomace can be used to provide prebiotics and enzymes, promote intestinal health, and enhance the animal's absorption of calcium and other nutrients.

[0107] Furthermore, the preservative includes at least one of potassium sorbate, sodium benzoate, and citric acid;

[0108] Above, Potassium Sorbate, Sodium Benzoate, Citric Acid: Helps prevent product spoilage, extends shelf life, and maintains product freshness and safety.

[0109] Furthermore, the natural antioxidant includes at least one of natural vitamin E, rosemary extract, and L-ascorbic acid;

[0110] Above, Natural Vitamin E, Rosemary Extract, L-Ascorbic Acid (Vitamin C): Protect sensitive ingredients in the product from oxidative damage, prolong product stability, while providing additional health benefits.

[0111] Furthermore, the animal oil includes at least one of chicken oil, fish oil, beef tallow and duck oil;

[0112] As mentioned above, chicken oil, fish oil, beef tallow and duck fat are used to provide essential fatty acids, help promote the absorption of fat-soluble vitamins (such as vitamin D), and are beneficial to heart health and immune function.

[0113] Furthermore, the thickener includes at least one of pectin, gellan gum and sodium carboxymethyl cellulose.

[0114] As mentioned above, pectin, gellan gum and sodium carboxymethylcellulose are used to improve the texture and stability of the product, ensure the uniform distribution of ingredients, and enhance the overall sensory quality of the product.

[0115] The combined effect of these ingredients enables calcium supplement products to not only effectively provide calcium, but also optimize the overall nutritional status and digestion and absorption efficiency of animals, while ensuring the acceptability of the product and safety for long-term use.

[0116] It should be noted that lactose-free milk powder (such as lactose-free cow's milk powder and goat's milk powder) provides protein and other nutrients, while animal oil (such as fish oil) is rich in Omega-3 fatty acids. These fatty acids can help improve the absorption of fat-soluble vitamins. Therefore, lactose-free milk powder and animal oil have a certain synergistic effect in the components.

[0117] Animal hydrolysates (such as beef hydrolyzed cream) provide easily absorbed amino acids, and thickeners (such as sodium carboxymethylcellulose) can help stabilize the distribution of these proteins in the product, ensuring uniform release and absorption of nutrients.

[0118] It should be noted that natural antioxidants and vitamin D3, natural antioxidants (such as natural vitamin E and rosemary extract) can help protect vitamin D3 and other sensitive ingredients from oxidative damage. Vitamin D3 is an indispensable factor for calcium absorption, and the protective effect of antioxidants can ensure the effectiveness of vitamin D3.

[0119] Furthermore, the animal calcium supplement product comprises the following components in parts by weight:

[0120] 2-20 parts of dicalcium phosphate; 2-20 parts of lactic calcium; 1-10 parts of natural plant products; 1-10 parts of lactose-free milk powder; 1-10 parts of animal oil; 1-10 parts of animal hydrolysate; 1-10 parts of fructooligosaccharides; 0.5-5 parts of casein phosphopeptide; 0.5-5 parts of thickener; 0.5-5 parts of microbial fermentation product; 0.5-5 parts of L-lysine hydrochloride; 0.05-0.5 parts of collagen; 0.05-0.5 parts of preservatives; 0.05-0.5 parts of natural antioxidants; 0.005-0.1 parts of vitamin D3.

[0121] For further reference, Figure 1 and Figure 2 The animal calcium supplement product is in the form of composite sandwich particles; wherein, Figure 1 It is the external structure of composite sandwich particles. Figure 2 It is a schematic diagram of a local section.

[0122] The composite sandwich particles comprise a calcium supplement core comprising calcium hydrogen phosphate, lactic calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation product, L-lysine hydrochloride, collagen, preservative, natural antioxidant and vitamin D3, and further comprise a gastric acid secretion-promoting shell coated on the outer surface of the calcium supplement core;

[0123] The particles of the animal calcium supplement product are composite sandwich particles consisting of the calcium supplement core and a gastric acid secretion promoting shell coated on the outer surface of the calcium supplement core.

[0124] It should be noted that the animal calcium supplement product provided by the present invention contains organic calcium and inorganic calcium. Among them, milk calcium, as an organic calcium source, has high bioavailability, that is, it has a high efficiency of absorption and utilization in the body. Milk calcium not only contains calcium, but also contains other minerals and trace elements that help calcium absorption, such as magnesium, phosphorus and vitamin D, but the relative calcium content of milk calcium is low; calcium hydrogen phosphate is an inorganic calcium source, which is characterized by a relatively high calcium content and relatively low cost. Although its bioavailability is not as good as organic calcium, it provides an economical and effective way to increase the total calcium content in the product.

[0125] The use of calcium hydrogen phosphate can increase the total calcium content in the product without significantly increasing the cost of the product. This is an important consideration for commercial calcium supplements that need to be mass-produced and widely distributed. The simultaneous addition of milk calcium ensures the bioavailability of calcium, allowing animals to better absorb and utilize the supplemented calcium, thereby improving the overall effect of calcium supplementation. In addition, different animal species and different health conditions may require different forms of calcium. By providing two forms of calcium, the product can be more widely adapted to the nutritional needs and health conditions of different animals. In addition, in animal feed and nutritional supplements, it is very important to maintain an appropriate ratio of calcium and phosphorus. The phosphorus component provided by calcium hydrogen phosphate can help balance the ratio of calcium to phosphorus, which is essential for the animal's bone health and cell function.

[0126] In summary, by combining milk calcium and calcium phosphate, animal calcium supplements can more effectively meet the various calcium needs of animals while improving the economics and bioavailability of calcium supplements. This formulation strategy is designed to optimize calcium absorption and utilization in animals, thereby better supporting their overall health.

[0127] It should be noted that when calcium hydrogen phosphate is used as calcium supplement in animals, its absorption pathway is specifically as follows:

[0128] (1) Entering the digestive system: Calcium hydrogen phosphate first enters the digestive system through oral ingestion. It begins to break down after encountering gastric acid in the stomach, which helps release the calcium and phosphorus ions in it.

[0129] (2) Gastric acid effect: In the stomach, calcium hydrogen phosphate partially dissolves to form ionic calcium (Ca 2+ ) and phosphorus (H2PO 4- ), this is because gastric acid is mainly hydrochloric acid HCl, which can provide a sufficiently acidic environment to promote the decomposition of calcium hydrogen phosphate.

[0130] (3) Small Intestinal Absorption: After entering the small intestine from the stomach, the absorption of calcium hydrogen phosphate mainly occurs in the upper part of the small intestine, especially the duodenum and jejunum. The pH of the small intestine is higher than that of the stomach, which helps further dissociate and absorb calcium and phosphate ions.

[0131] (4) The role of vitamin D: Vitamin D plays a vital role in the absorption of calcium hydrogen phosphate. Vitamin D increases the active transport and channel absorption of calcium ions by promoting the production of calcium-binding proteins in small intestinal epithelial cells. Without sufficient vitamin D, the efficiency of calcium absorption will be greatly reduced.

[0132] (5) Transmembrane transport: The absorption of calcium and phosphorus involves several mechanisms, including active transport and passive diffusion: Active transport: relies on calcium pumps on the cell membrane (such as Ca 2+ -ATPase) and transport proteins (such as calcium transporters), all of which require regulation by vitamin D; passive diffusion: driven by the concentration gradient of calcium and phosphate in the small intestine, through the intercellular space.

[0133] (6) Blood transport and utilization: Once absorbed, calcium and phosphorus are transported through the blood to tissues and organs that need them, such as bones, where they participate in bone formation and maintenance. Calcium is also involved in nerve signal transmission, muscle contraction, and other important physiological functions.

[0134] (7) Excretion and Regulation: Calcium and phosphorus levels are regulated by the kidneys, and excess calcium and phosphorus can be excreted from the body through urine. In addition, hormone systems (such as parathyroid hormone and calmodulin) are also involved in regulating the balance of calcium and phosphorus in the body.

[0135] From the absorption pathway of calcium hydrogen phosphate mentioned above, it can be seen that the absorption of calcium hydrogen phosphate depends mainly on the action of gastric acid. The hydrochloric acid in the stomach fully reacts with calcium hydrogen phosphate to release calcium ions and phosphate ions. The following is a simplified representation of this reaction:

[0136] Ca(H2PO4)2+2HCl→CaCl2+2H3PO4; (1)

[0137] Calcium dicalcium phosphate (Ca(H2PO4)2) is an acidic salt with two replaceable hydrogen atoms. Hydrochloric acid (HCl), a strong acid, reacts with the calcium dicalcium phosphate, displacing its hydrogen ions to form calcium chloride (CaCl2) and phosphoric acid (H3PO4). Calcium chloride is a water-soluble salt that dissolves easily in the stomach. The resulting phosphoric acid is a weak acid but relatively stable in the presence of stomach acid. This reaction helps convert the calcium ions in the calcium dicalcium phosphate into a form that is more easily absorbed in the small intestine, thereby increasing the bioavailability of the calcium.

[0138] When calcium chloride (CaCl2) dissolves in water, it dissociates into calcium ions (Ca 2+ ) and chloride ions (Cl - ). This process can be represented by the following chemical equation:

[0139] CaCl2→Ca 2+ +2Cl - ; (2)

[0140] In this reaction: Calcium chloride is an ionic compound. When it dissolves in water, its lattice structure is destroyed, and calcium ions and chloride ions are surrounded by water molecules and dispersed into the solution. 2+ ) is a divalent positive ion in aqueous solution. It is the active form of calcium and can directly participate in various physiological processes in organisms, such as bone mineralization. - ) is a monovalent ion whose main function is to maintain electrolyte balance and acid-base balance of body fluids.

[0141] Therefore, the dissolution of calcium chloride in water helps provide calcium ions that can be absorbed and utilized by organisms, which is very important in calcium supplementation and various biological functions.

[0142] As an inorganic calcium source, the absorption of calcium dicalcium phosphate in animals is highly dependent on gastric acid secretion. Gastric acid not only helps dissociate calcium dicalcium phosphate into absorbable calcium ions but also indirectly promotes calcium absorption by affecting the intestinal environment. Therefore, when animals are fasting or otherwise lack sufficient gastric acid production, the absorption efficiency of calcium dicalcium phosphate is reduced, significantly reducing calcium absorption and conversion efficiency, thus affecting the animal's calcium supplementation.

[0143] In the embodiment of the present application, in response to the situation where the animal is on an empty stomach or in other situations where the stomach does not produce enough gastric acid, the animal calcium supplement product is configured as a composite sandwich particle, comprising a calcium supplement core and a gastric acid secretion-promoting shell. The calcium supplement core serves as the core material, and the gastric acid secretion-promoting shell serves as the coating material, which is coated on the outer surface of the calcium supplement core.

[0144] The core of calcium supplementation consists of calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation products, L-lysine hydrochloride, collagen, preservatives, natural antioxidants and vitamin D3, which play the main role of calcium supplementation after oral administration.

[0145] The outer coating material, i.e., the gastric acid secretion promoting shell, is used to contact the gastric mucosa when entering the animal's stomach to promote gastric acid production. Its advantages are:

[0146] (1) Improve the absorption rate of inorganic calcium: Since inorganic calcium such as calcium hydrogen phosphate requires gastric acid to dissociate into absorbable calcium ions, the shell that promotes gastric acid secretion can increase gastric acid secretion, thereby improving the dissociation and absorption rate of inorganic calcium.

[0147] (2) Optimizing the bioavailability of calcium: By promoting gastric acid secretion, the digestive environment of animals can be improved, so that the calcium source in calcium supplement products (whether inorganic calcium or organic calcium) can obtain better bioavailability.

[0148] (3) Adapting to the digestive capacity of different animals: Especially for young animals or animals with insufficient gastric acid secretion, this design can compensate for their insufficient gastric acid secretion and ensure that they can effectively absorb the supplemented calcium.

[0149] (4) Improve product applicability: For animals that are fasting or have not eaten for a long time, the gastric acid secretion-promoting shell can help them quickly produce enough gastric acid when they consume calcium supplements, thereby absorbing calcium in a timely manner.

[0150] (5) Enhanced calcium supplementation effect: By increasing gastric acid secretion, the calcium supplementation effect can be enhanced, so that calcium supplement products can better meet the calcium needs of animals, especially for rapidly growing animals or animals in special physiological states (such as pregnancy and lactation).

[0151] (6) Promote overall digestion: Increased gastric acid not only helps calcium absorption, but also promotes overall digestion, improving the animal's appetite and nutrient absorption.

[0152] (7) Improve product stability: The gastric acid secretion-promoting shell may contain some protective ingredients that can protect the stability of the calcium supplement core during storage and transportation and prevent the ingredients from degrading or becoming ineffective.

[0153] (8) Considering that calcium supplement products also contain other nutrients and additives, the gastric acid secretion-promoting shell helps the simultaneous absorption and utilization of these ingredients, thus achieving comprehensive nutritional supplementation.

[0154] The animal calcium supplement product provided in this application is provided in the form of composite sandwich particles. This design offers a novel approach to calcium supplementation, combining gastric acid secretion stimulation with calcium supplementation, providing new insights into the research, development, and application of animal calcium supplement products. This unique calcium supplement product is unique in the market, attracting consumers and enhancing its market competitiveness.

[0155] In summary, the design of the gastric acid secretion-promoting functional shell can not only improve the calcium absorption efficiency, but also improve the overall digestion and nutritional status of animals. It is an innovative technical solution with practical application value.

[0156] In addition, it should be noted that animals, such as cats and dogs, usually swallow their staple food, feed, and / or snacks. They do not chew their food slowly like humans do, but tend to swallow the food whole or in large mouthfuls. This feeding method is related to their physiological structure and evolutionary history. The reasons are:

[0157] Tooth structure: The tooth structure of animals such as cats and dogs is adapted to tearing and cutting meat food. Their canines and carnassials are very suitable for catching and tearing prey, while their molars are used to bite off large pieces of food.

[0158] Saliva composition: Compared to humans, dogs and cats have less salivary amylase in their saliva, which means that they have limited ability to digest carbohydrates in food (such as starch) and rely more on stomach acid and intestinal digestion.

[0159] Feeding behavior: The feeding behavior of dogs and cats is usually rapid, and they will swallow their food quickly, which may be due to the need to eat quickly in the wild to avoid predators or competitors.

[0160] Digestive efficiency: The digestive systems of dogs and cats are adapted to high-protein diets. Their stomachs can quickly secrete gastric acid when they come into contact with protein, which helps to break down the protein in food, while the intestines can quickly absorb nutrients.

[0161] Food form: Many feeds and snacks designed for dogs and cats are in easy-to-swallow forms, such as small pellets or easy-to-bite bars, to suit their eating habits.

[0162] Intestinal microorganisms: The intestinal microbial communities of dogs and cats are different from those of humans. They can break down and ferment certain components of food, such as protein and fat, but their ability to break down cellulose is weaker.

[0163] Nutrient absorption: Although dogs and cats mainly swallow food, their gastrointestinal structure and the secretion of digestive enzymes can still effectively absorb nutrients in food, including minerals such as calcium.

[0164] Feed processing: Taking into account the eating habits of dogs and cats, pet food manufacturers will use special processing techniques to ensure that the nutrients in the food (such as inorganic calcium) can be effectively released and absorbed in the digestive tract of dogs and cats.

[0165] To sum up, although the way animals such as cats and dogs eat is different from that of humans, their physiological structure and digestive system have adapted to this way of swallowing food and can effectively absorb the nutrients they need.

[0166] In the embodiment of the present application, in view of the dietary habits and feeding habits of animals, and taking into account the fact that the animals are fasting or other conditions that result in insufficient gastric acid production in the stomach, the form of the animal calcium supplement product is set as a composite sandwich particle, including a calcium supplement core and a gastric acid secretion-promoting shell. The calcium supplement core serves as the core material, and the gastric acid secretion-promoting shell serves as the coating material, which is coated on the outer surface of the calcium supplement core. After the animal swallows the animal calcium supplement product in the present application, the composite sandwich particle directly enters the stomach through the esophagus as a whole, and the gastric acid secretion-promoting shell of the composite sandwich particle directly contacts the gastric mucosa, thereby promoting the animal's stomach to produce a large amount of gastric acid. After dissolving and decomposing the gastric acid secretion-promoting shell, the gastric acid directly contacts and infiltrates the inorganic calcium in the calcium supplement core, i.e., calcium hydrogen phosphate, and decomposes it, producing the above-mentioned reactions (1) and (2), thereby causing the calcium bicarbonate to decompose and produce Ca 2+ , and then enter the Ca 2+ The decomposition, absorption and utilization process.

[0167] Even if some of the composite sandwich particles are crushed by animals, firstly, according to the eating habits of animals, most of the composite sandwich particles will be swallowed directly, and only a small part will be crushed, which will not affect the calcium supplementation effect; secondly, the calcium supplementation core and the gastric acid secretion-promoting functional shell of the crushed composite sandwich particles will also enter the stomach of the animal, and the part of the gastric acid secretion-promoting functional shell will also directly contact the surface of the animal's gastric mucosa, which will also stimulate the stomach to instantly secrete a large amount of gastric acid for decomposition, and will also not affect the decomposition of inorganic calcium, as well as the absorption of calcium and the efficiency of calcium supplementation.

[0168] Furthermore, the gastric acid secretion promoting shell comprises the following components:

[0169] Meat meal, starch, animal fat and thickeners;

[0170] The gastric acid secretion promoting shell comprises a plurality of different components, through which the components play a certain role in promoting gastric acid secretion:

[0171] (1) Meat powder: The protein components in meat powder, upon contact with the gastric mucosa, can stimulate the G cells in the stomach to produce gastrin, a potent stimulator of gastric acid secretion. Additionally, protein breakdown products can also directly stimulate gastric acid secretion.

[0172] It is important to note that when food containing animal protein enters the stomach, specific receptors on the gastric mucosa can sense the presence of protein and send signals to the brain via the vagus nerve. The brain then sends signals to the stomach through the vagus nerve, stimulating the parietal cells to secrete gastric acid.

[0173] (2) Animal oil: Animal fats and oils can stimulate the K cells in the stomach to secrete gastrin, thereby promoting the secretion of gastric acid. Fatty acids in animal oils, particularly those that can activate gastrin receptors in the stomach, can promote the secretion of gastric acid.

[0174] It is important to note that fats and oils can slow down the emptying rate of the stomach, allowing food to stay in the stomach for a longer period of time, which helps to continuously stimulate the secretion of gastric acid. Additionally, some fatty acids, particularly those that can activate specific receptors in the stomach, can also promote the secretion of gastric acid.

[0175] (3) Starch: As a carbohydrate, the breakdown products of starch can also indirectly affect the secretion of gastric acid. Although starch itself does not have as direct an effect on gastric acid secretion as proteins and fats, it can act as part of the overall food composition, working in conjunction with other components to influence the emptying rate of the stomach and the secretion of gastric acid.

[0176] (4) Thickening agents: Thickening agents such as gelatin, gellan gum, and sodium carboxymethylcellulose can be used to adjust the viscosity and stability of the shell. Although their direct effect on gastric acid secretion is not well understood, they help control the dissolution rate of the shell, which can indirectly affect the contact time of food with the gastric mucosa and the release of gastrin.

[0177] In summary, the design of a progastrin secretion functional shell can promote gastric acid secretion through the following aspects:

[0178] Fast response: The combination of meat powder and animal oil can quickly stimulate gastric acid secretion, providing a timely acidic environment for the dissociation and absorption of calcium salts.

[0179] Sustained effect: The addition of animal oil can slow down the emptying rate of the stomach, prolonging the residence time of food in the stomach and achieving sustained stimulation of gastric acid secretion.

[0180] Adaptability: By adjusting the types and proportions of meat powder and animal oil, it is possible to adapt to the digestive physiological characteristics and nutritional needs of different animals.

[0181] Protective Mechanism: Starches and thickeners may help protect the core calcium supplement while indirectly regulating the rate and duration of gastric acid secretion by controlling the dissolution rate of the outer shell.

[0182] The advantage of this design is that it can provide animals with an environment that promotes gastric acid secretion, thereby improving the dissociation and absorption efficiency of inorganic calcium salts such as calcium hydrogen phosphate, while also taking into account the overall nutritional and digestive health of the animals.

[0183] Further, the meat meal includes at least one of beef meal, mutton meal and chicken meal;

[0184] As mentioned above, meat powder from different sources (beef powder, mutton powder, chicken powder), as high-quality animal protein, can not only stimulate the secretion of gastric acid after contacting the gastric mucosa, but also has different flavors, which can improve the taste of calcium supplement products and improve the palatability of animals.

[0185] Furthermore, the starch comprises at least one of potato starch, corn starch and wheat starch;

[0186] As mentioned above, different types of starch (potato starch, corn starch, wheat starch) have different digestion rates and gastric emptying rate. By choosing the right type of starch, you can regulate gastric emptying rate, which in turn affects gastric acid secretion and the digestion time of food in the stomach.

[0187] Furthermore, the animal oil includes at least one of chicken oil, fish oil, beef tallow and duck oil;

[0188] As mentioned above, different animal oils can be tailored to the digestive characteristics of different animals: different animals may better digest specific types of protein and fat. For example, ruminants may be more suited to beef tallow, while carnivores may be more suited to fish oil. By offering a variety of meat meals and animal oils, products can be customized for different animal species to improve calcium absorption and product adaptability. Furthermore, animal oils not only promote gastric acid secretion but also provide essential fatty acids and energy, helping to maintain the animal's overall nutritional balance.

[0189] Furthermore, the thickener includes at least one of pectin, gellan gum and sodium carboxymethyl cellulose.

[0190] Furthermore, the gastric acid secretion promoting shell includes the following components in parts by weight: 60 to 90 parts of meat powder; 3 to 30 parts of starch; 1 to 10 parts of animal oil; and 0.2 to 2 parts of thickener.

[0191] For further reference, Figure 3The animal calcium supplement product provided by the embodiments of the present application has composite sandwich particles, including a calcium supplement core and a gastric acid secretion promoting functional shell, wherein the gastric acid secretion promoting functional shell includes a shell body and at least one strip-shaped groove provided on the surface of the shell body.

[0192] Further, referring to A in the formula (I), the outer surface of the shell body of the gastric acid secretion promoting functional shell of each of the composite sandwich particles is provided with a plurality of strip-shaped grooves. Figure 4

[0193] Further, the plurality of strip-shaped grooves on the outer surface of the shell body of the gastric acid secretion promoting functional shell of the composite sandwich particles are arranged in parallel.

[0194] It should be noted that the gastrointestinal structure of animals such as dogs and cats is different from that of humans, and these differences will affect the absorption efficiency of inorganic calcium (such as calcium bicarbonate) in conventional calcium supplement products to some extent. The following are some influencing factors (taking dogs and cats as examples):

[0195] Gastric morphology and gastric acid secretion: The dog stomach is a single-chambered stomach, and the gastric acid secretion capacity is strong. The cat stomach is a pear-shaped sac, and the gastric acid secretion is also relatively active. In theory, this is conducive to the reaction of inorganic calcium with gastric acid to promote its dissociation into absorbable calcium ions.

[0196] Intestinal length and structure: The intestine of a dog is relatively short, about 5 times the body length, and the average length of the small intestine is about 4 meters. The intestinal tract of a cat is relatively short and wide, the intestinal wall is thick, and the digestive capacity is strong. This means that food passes through the intestinal tract of a dog or a cat quickly, and if the gastric acid secretion is insufficient or the food is quickly passed through the stomach after being ingested, the inorganic calcium may not have enough time to react with the gastric acid and be excreted from the body.

[0197] Food intake habits: Dogs and cats usually adopt a wolf swallow tiger eat way of eating, and are not good at chewing, which may lead to insufficient mixing of food in the oral cavity, affecting the contact and reaction of gastric acid and inorganic calcium.

[0198] Form of calcium supplement: The form (such as granules, powder or liquid) and dosage of the calcium supplement product can also affect the absorption efficiency of calcium. Smaller particle size or liquid form can help increase the contact area of inorganic calcium and gastric acid, thereby improving the absorption efficiency.

[0199] Influence of other nutrients: Dogs and cats have strong digestive capacity for protein and fat, and the metabolic products of these nutrients can affect the absorption of calcium. For example, amino acids produced by protein digestion can form soluble complexes with calcium, which can help the absorption of calcium.

[0200] ​In summary, the gastrointestinal structure of dogs and cats may affect the absorption efficiency of inorganic calcium bicarbonate, but this mainly depends on many factors, including gastric acid secretion, intestinal length and structure, food intake habits, and the form of calcium supplements.

[0201] In this technology, for animals such as dogs and cats, which eat at a fast speed, after the animal calcium supplement product enters the esophagus, due to the animal's own physiological structure, the particles may be directly discharged into the intestine before sufficient gastric acid is produced, decomposition occurs, and the reaction is not complete, thereby causing direct loss of calcium. In order to improve the efficiency of calcium supplementation, the above factors are taken into consideration in the embodiments of this application and the structure of the animal calcium supplement product is improved.

[0202] In animal calcium supplement products, the particles are designed as composite sandwich particles, including a calcium-supplementing core and a shell with a specific surface structure that promotes gastric acid secretion. This design has multiple purposes, functions and advantages:

[0203] (1) Increase surface area: Providing strip-shaped grooves on the shell surface can increase the surface area of ​​the overall particles, thereby providing more contact surfaces to promote gastric acid secretion.

[0204] (2) Improved dissolution rate: The strip-shaped groove design helps the shell dissolve faster, allowing the gastric acid secretion-promoting ingredients (such as meat powder, starch, animal oil and thickener) to contact the gastric mucosa more quickly, accelerating gastric acid secretion.

[0205] (3) Controlled release: Multiple parallel strip grooves can control the release rate of gastric acid secretion promoting components, ensuring continuous and stable gastric acid secretion to support calcium absorption.

[0206] (4) Enhanced mechanical strength: The wavy or serrated grooves can enhance the mechanical strength of the shell, making it more stable and less prone to breakage during processing and storage.

[0207] In addition, the shell surface of composite sandwich particles in animal calcium supplement products is designed with multiple strip-shaped grooves, which have the following potential effects on the particle flowability, wall adhesion effect and contact with the gastric mucosa in the animal body:

[0208] (1) Reduced flowability: The groove design may increase the friction between particles, thereby reducing their flowability in the animal digestive tract. This effect of reducing flowability may help the particles stay in the stomach for a longer time.

[0209] (2) Enhanced wall-hanging effect: The strip-shaped grooves can provide a mechanical hooking effect, making it easier for the particles to adhere to the stomach wall. This wall-hanging effect helps the particles to contact the gastric mucosa and increase gastric acid secretion.

[0210] (3) Delayed transfer to the intestine: Because the particles stick to the stomach wall and come into contact with the gastric mucosa, the time for the particles to transfer from the stomach to the intestine is delayed, thereby providing more time for calcium absorption.

[0211] (4) Improved absorption efficiency: By increasing the contact time and surface area with the gastric mucosa, the dissociation and absorption efficiency of calcium hydrogen phosphate in the calcium supplement core can be improved.

[0212] (5) Reduce gastric discomfort: The groove design may help reduce the accumulation of particles in the stomach, reducing the risk of gastric discomfort or obstruction.

[0213] In summary, the design of multiple strip-shaped grooves on the surface of the particles is intended to improve the effect of the particles in the animal's stomach, increase the efficiency of calcium supplementation, and at the same time ensure the safety of the product and the comfort of the animals.

[0214] For further reference, Figure 4 In C, the plurality of parallel strip-shaped grooves are arranged in a wave shape on the outer surface of the shell of the gastric acid secretion promoting functional shell of the composite sandwich particle.

[0215] The plurality of wavy strip-shaped grooves are parallel to each other, so that more grooves composed of wavy lines appear on the surface of the composite sandwich particles, thereby further increasing the contact surface area.

[0216] For further reference, Figure 4 D in the figure is a plurality of parallel strip-shaped grooves arranged in a zigzag pattern on the outer surface of the shell of the gastric acid secretion promoting functional shell of the composite sandwich particle.

[0217] As mentioned above, on the shell surface, multiple strip grooves are arranged in a zigzag shape, for example, they can be a zigzag shape composed of broken lines, or a zigzag shape composed of rectangular frames with openings connected at the end, thereby greatly increasing the surface area of ​​the particle surface in contact with the gastric mucosa.

[0218] For further reference, Figure 4 B, the strip grooves include linear grooves and cross grooves intersecting the linear grooves;

[0219] Both ends of the linear groove extend to the head and tail ends of the composite sandwich particle, and at least one of the cross grooves crosses the linear groove.

[0220] As mentioned above, in order to further increase the contact area between the particles and the body fluids and gastric juice in the gastric mucosa and accelerate the production of gastric acid, in the embodiment of the present application, grooves in two directions can be provided on the surface of the strip-shaped grooves: linear grooves and cross grooves. The linear grooves can be long grooves connecting the ends of the particles, while the cross grooves can be grooves that connect to and intersect with the linear grooves, or continuously intersect with them.

[0221] For example, the particles are rectangular particles when viewed from above, have a length direction, include an upper surface and a lower surface, and the length directions of the upper surface and the lower surface are each provided with three parallel wavy linear grooves connecting the head and tail ends; and each side surface is provided with three cross grooves that intersect with the linear grooves, and the cross grooves on each side surface are parallel to each other.

[0222] By providing the cross grooves, the surface area of ​​the particles in contact with the gastric mucosa is further increased, thereby accelerating the production of gastric acid and improving the decomposition efficiency of calcium ions.

[0223] For further reference, Figure 5 The inner surfaces of the strip-shaped grooves of the composite sandwich particles are coated with an animal oil layer, and freeze-dried meat powder adheres to the surface of the animal oil layer.

[0224] To further enhance palatability, the inner surface of the strip-shaped grooves of each composite sandwich particle is coated with animal oil, and freeze-dried meat powder is then adhered to the animal oil. The freeze-dried meat powder may include, but is not limited to, chicken meal, beef meal, pork meal, etc., and may be the same composition as the aforementioned meat powder, but processed in a freeze-dried manner.

[0225] After applying the animal oil, a layer of animal oil is formed, allowing the freeze-dried meat powder to adhere to the inner surface of the strip-shaped grooves. Furthermore, due to the groove shape of the strip-shaped grooves, the freeze-dried meat powder can be more firmly embedded therein, preventing it from later falling off due to the smooth surface. The animal oil can be the same as or different from the animal oil used in the aforementioned calcium supplement core and gastric acid secretion promoting surgery.

[0226] As mentioned above, compared to conventional particles with certain defects or holes on the surface, the composite sandwich particles provided in the embodiments of the present application increase the contact area with the gastric mucosa through the strip groove design on the shell, which may promote the wall hanging effect, so that the particles stay in the stomach for a longer time, thereby prolonging the release and absorption process of calcium. The groove design provides more contact points, which helps the particles to better contact with the gastric mucosa and promote the secretion of gastric acid in local areas. This may be more effective than a smooth surface or a simple hole structure. Due to the promotion of gastric acid secretion and the extension of the residence time in the stomach, the particles of this technology can increase the residence time by hanging on the wall and adhering to the stomach wall, thereby improving the absorption efficiency of calcium elements. The shell in the composite sandwich design can protect the calcium supplement core from the external environment. When biting, chewing or swallowing, it can protect the calcium supplement core as much as possible until the particles enter the stomach and come into contact with gastric acid, which helps to maintain the stability and activity of the calcium supplement component and better promote gastric acid secretion in the first place. The strip groove provides a structural optimization that may help improve the mechanical strength and crushing resistance of the particles, while the traditional defect or hole structure may make the particles more fragile.

[0227] The above, the groove coated with animal oil and adhered with freeze-dried meat powder can increase the attractiveness of the particles, improve the palatability and appetite of animals by improving the taste and flavor, and improve the palatability and appetite of animals.

[0228] The freeze-dried meat powder can be firmly adhered in the strip-shaped groove because it belongs to freeze-dried powder. Compared with the conventional market mixed meat powder or freeze-dried powder particles, only the finished feed particles are mixed with freeze-dried powder and sold in bags, and there is no synergistic effect between the two, the combination of the two is not tight, and when taken out, only a small amount of powder is adhered to the particles, and a large amount of debris, powder, dust, and freeze-dried residue is left, which is difficult to take out and causes waste.

[0229] In the present technology, the freeze-dried powder is adhered in the strip-shaped groove during preparation by animal oil as an adhesive, and there is no separate coating of animal oil on the outer surface of the particle shell at other positions, so the freeze-dried powder will not adhere to other positions.

[0230] In summary, in the embodiments of the present application, an innovative composite sandwich particle design is provided, which can provide a more effective, safer, and more popular calcium supplement method for animals, and improve the overall performance and user experience of the calcium supplement product.

[0231] Reference Figure 6 In the embodiments of the present application, a preparation method of the animal calcium supplement product is also provided, which comprises:

[0232] Step S1, preparing mixed wet material;

[0233] Step S2, preparing the mixed wet material into a strip-shaped material;

[0234] Step S3, steaming the strip-shaped material, and cutting to obtain wet particles;

[0235] Step S4, drying the wet particles to obtain the animal calcium supplement product;

[0236] Further, the mixed wet material is placed into a strip-shaped material production device to prepare the strip-shaped material.

[0237] Further, the steaming treatment temperature is 85-95℃.

[0238] Further, the steaming treatment time is 20-30 minutes.

[0239] It should be noted that steaming is an important step in the preparation of animal calcium supplement products, which has the following purposes and functions:

[0240] Sterilization: The high temperature during the steaming process can kill the microorganisms that may exist on the surface and inside the particles, ensuring the hygiene and safety of the product.

[0241] Promote gelation: During the steaming process, collagen and other high molecular substances will gel when heated to form a stable structure, which helps to enhance the stability and mechanical strength of the particles.

[0242] Improved structure: Steaming helps to form a fixed structure inside the particles, so that the dried particles have good rehydration and stability.

[0243] Promote starch gelatinization: Starch gelatinizes when heated to form a stable gel-like structure, which helps improve the taste and digestibility of the granules.

[0244] Fixing shape: Steaming can initially fix the shape of the particles, making it easier to cut and dry them.

[0245] Promote component fusion: At high temperatures, the components in the coating material and the core material can be better fused, bonded, and combined to form complete and highly stable particles.

[0246] Improve drying efficiency: Steamed pellets can remove moisture faster during the drying process, improving drying efficiency.

[0247] Improved taste: Steaming helps improve the taste of pellets, making them more palatable to animals.

[0248] Enhanced nutrient retention: Appropriate steaming time can maximize the preservation of nutrients in the raw materials and avoid nutrient loss caused by long-term high-temperature treatment.

[0249] Easy to process: Steamed pellets are easier to cut and dry, which helps improve the efficiency of the production line.

[0250] The steaming step ensures that the animal calcium supplement granules maintain their nutritional content while having good physical and chemical stability, as well as a taste and structure suitable for pet consumption.

[0251] Furthermore, the drying process is freeze-drying; the conditions of the freeze-drying process include:

[0252] Freezing temperature: -50℃~-40℃; Freezing time: at least 24 hours;

[0253] Furthermore, the freeze drying equipment of the freeze drying process is set up with the following conditions: cold trap temperature of -45°C; heating rate of 10°C / h; final temperature of 60°C; vacuum degree of 10-70Pa;

[0254] Furthermore, during the freeze-drying process, the moisture content of the animal calcium supplement product is controlled between 2% and 5%.

[0255] The above-mentioned animal calcium supplement product is prepared by freeze-drying (lyophilization) to have the following advantages:

[0256] Preserving active ingredients: Freeze drying is a gentle drying process that removes moisture at low temperatures, thereby preserving the active ingredients in the product, such as vitamins, enzymes, and proteins, to the greatest extent possible.

[0257] Extended shelf life: Freeze drying can significantly extend the shelf life of animal calcium supplement products - composite sandwich particles by removing moisture from the product, as moisture is a key factor in microbial growth.

[0258] Maintaining structural integrity: During freeze-drying, ice crystals change directly from solid to gaseous state during sublimation, leaving behind the original pore structure, which helps maintain the structural integrity of the particles.

[0259] Easy to store and transport: Freeze-dried particles are light in weight and small in size, making them easy to store and transport without the need for refrigeration.

[0260] Provides a variety of administration methods, such as direct administration or rapid rehydration: Among them, freeze-dried products have good rehydration properties and can quickly absorb water to return to a near-original state, making it easier for management personnel (such as owners, pet owners or veterinarians) to administer the product.

[0261] Improved taste and flavor: Freeze drying helps maintain the taste and flavor of the product, avoiding flavor changes that may occur during high-temperature drying.

[0262] Reduce oxidation: During the freeze-drying process, due to the low temperature and vacuum environment, the oxidation of active ingredients can be reduced, maintaining the nutritional value and quality of the product.

[0263] Improved safety: Freeze-drying improves product safety by removing moisture that could cause bacterial growth.

[0264] Easy to control dosage: Freeze-dried particles are easy to weigh accurately, making it easier for managers to control dosage according to the needs of animals.

[0265] Suitable for multiple uses: The freeze-dried pellets can be used directly as a standalone product or as a functional ingredient added to regular animal food.

[0266] In summary, freeze-drying is an effective processing method that can maintain the nutritional ingredients of the animal calcium supplement product, improve the stability of the product, and provide a convenient storage and use method.

[0267] Further, the mixed wet material includes a calcium supplement core wet material;

[0268] The preparation method of the calcium supplement core wet material includes:

[0269] The calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolysate, fructo-oligosaccharide, casein phosphopeptide, thickening agent, microbial fermentation products, L-lysine hydrochloride, collagen, preservative, natural antioxidant, vitamin D3, and water are mixed and subjected to heat treatment to obtain the calcium supplement core wet material.

[0270] The mixing device can be a stirrer, a homogenizer, or the like, and can also be other mixing devices.

[0271] Further, the mixing of the calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolysate, fructo-oligosaccharide, casein phosphopeptide, thickening agent, microbial fermentation products, L-lysine hydrochloride, collagen, preservative, natural antioxidant, vitamin D3, and water, and the heat treatment to obtain the calcium supplement core wet material include:

[0272] The calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolysate, fructo-oligosaccharide, casein phosphopeptide, thickening agent, microbial fermentation products, L-lysine hydrochloride, collagen, preservative, natural antioxidant, vitamin D3, and water are mixed in a unit dose of 100 parts, and the mixture is subjected to heat treatment to obtain the calcium supplement core wet material.

[0273] In the core slurry, the thickening agent is added in an amount of 0.5 to 5 parts, heated to 70 to 80°C, and then the collagen is added in an amount of 0.05 to 0.5 parts, and the mixture is continuously heated to boiling. After cooling, the calcium supplement core wet material is obtained.

[0274] Further, the mixed wet material further includes a gastric acid secretion promoting functional shell wet material;

[0275] The preparation method of the gastric acid secretion promoting functional shell wet material includes:

[0276] The meat powder, starch, animal oil, and thickening agent, and water are mixed to obtain the gastric acid secretion promoting functional shell wet material.

[0277] As mentioned above, the mixing equipment can be a blender, a homogenizing equipment, etc., and can also be other mixing equipment.

[0278] Furthermore, the meat powder, starch, animal oil, thickener, and water are mixed to obtain the gastric acid secretion promoting shell wet material, which comprises:

[0279] Based on a unit dose of 100 parts, 60 to 90 parts of meat powder, 3 to 30 parts of starch, 1 to 10 parts of animal oil, 0.2 to 2 parts of thickener, and water are mixed to obtain the wet shell material with the function of promoting gastric acid secretion.

[0280] Furthermore, the step of forming the mixed wet material into strips comprises:

[0281] The gastric acid secretion promoting function shell wet material and the calcium supplementing core wet material are placed in two strip material production devices respectively, and the strip material sandwiched by the gastric acid secretion promoting function shell wet material and the calcium supplementing core wet material is extruded simultaneously;

[0282] Furthermore, in the strip, the diameter of the calcium-supplemented core wet material is 0.5 cm;

[0283] Furthermore, in the strip, the outer diameter of the wet material of the shell with the function of promoting gastric acid secretion is 0.7 cm.

[0284] The strip material production equipment mentioned above may be an extruder or other equipment for producing strip materials.

[0285] In the above-mentioned step S2, the process of forming the mixed wet material into a strip-shaped object further includes installing a strip groove processing device on the strip-shaped material production device. For example, it can be installed at the strip output position of the extruder.

[0286] The strip groove processing equipment can be equipped with a strip groove processing device, so that the particles produced have linear grooves within the strip grooves. In addition, the strip groove processing device can be controlled by an algorithm to produce both linear grooves and cross grooves. Alternatively, the strip groove processing equipment can be equipped with a strip groove processing device and a cross groove processing device working together to produce particles with both linear grooves and cross grooves.

[0287] Wherein, the strip groove processing equipment may include a strip groove processing device, a first horizontal moving rail, a first telescopic rod, a first horizontal moving motor, a first telescopic motor, a cross groove processing device, a second horizontal moving rail, a second telescopic rod, a second horizontal moving motor, a second telescopic motor and a fixing device;

[0288] The strip groove processing device is connected to the first telescopic rod, and the other end of the first telescopic rod is connected to the first horizontal movable rail. Driven by the first horizontal movable motor, the first telescopic rod drives the strip groove processing device to move back and forth along the length direction of the first horizontal movable rail, thereby carving linear grooves on the surface of the strip under controllable conditions; the first telescopic rod moves in the vertical direction under the control of the first telescopic motor, thereby controlling the length of the carved lines.

[0289] The cross-groove processing device is connected to the second telescopic rod, and the other end of the second telescopic rod is connected to the second horizontal movable rail. Driven by the second horizontal movable motor, the second telescopic rod drives the strip-shaped groove processing device to move back and forth along the length direction of the second horizontal movable rail, thereby engraving the surface of the strip object under controllable conditions to obtain a cross groove intersecting with the linear groove; the second telescopic rod moves in the vertical direction under the control of the second telescopic motor, thereby controlling the length of the engraved line.

[0290] Furthermore, the strip-grooving and cross-grooving processing devices can be scrapers with a certain tooth structure, with adjustable tooth spacing and tooth length. The spacing adjustment structure can be a conventional adjustment structure, for example, multiple toothed scrapers are arranged in parallel on an adjustment frame, with a connecting structure between the toothed scrapers. By pushing one of the scrapers with a knob or a pull rod, the spacing between all the toothed scrapers can be adjusted.

[0291] In addition, the strip groove processing device and the cross groove processing device also include an animal oil release device arranged on the toothed scraper, so that the animal oil flows into the toothed scraper, and then when the strip groove is opened, the animal oil is coated on the inner surface of the strip groove.

[0292] In step S4, after the wet particles are dried, the dried particles are placed in freeze-dried meat powder for tumbling mixing, and then sieved so that the freeze-dried meat powder adheres to the strip-shaped grooves and the freeze-dried meat powder at other locations on the particle surface is shaken off, thereby completing the preparation.

[0293] The present invention is further described below by way of specific examples. However, it should be understood that these examples are merely provided for more detailed description and are not to be construed as limiting the present invention in any form.

[0294] Table 1. Comparison of particle forms in the examples

[0295]

[0296] In the table, “实” represents “implementation”, such as “实1” represents “implementation 1”; the same applies hereinafter.

[0297] Table 2. Weight fraction of each component of the calcium supplement core in the example granules

[0298]

[0299] Table 3, specific raw materials of each component of the calcium supplement core in the example granules

[0300]

[0301] Table 4, weight fraction of each component of the gastric acid secretion promoting functional shell in the example granules

[0302]

[0303] Table 5, specific raw materials of each component of the gastric acid secretion promoting functional shell in the example granules

[0304]

[0305] Example 1: In this example, the total amount of raw materials is 100 parts, including the following weight fractions: 2 parts of calcium hydrogen phosphate, 2 parts of milk calcium, 10 parts of marigold powder, 10 parts of lactose-free goat milk powder, 10 parts of beef tallow, 10 parts of beef hydrolyzed paste, 10 parts of fructooligosaccharide, 0.5 parts of casein phosphopeptide, 0.5 parts of pectin, 0.5 parts of fermented apple, 5 parts of L-lysine hydrochloride, 0.05 parts of collagen, 0.05 parts of sodium benzoate, 0.05 parts of L-ascorbic acid, and 0.005 parts of vitamin D3, with the remainder being water.

[0306] The specific preparation process is as follows:

[0307] Mix the calcium hydrogen phosphate, milk calcium, marigold powder, lactose-free goat milk powder, beef tallow, beef hydrolyzed paste, fructooligosaccharide, casein phosphopeptide, fermented apple, L-lysine hydrochloride, sodium benzoate, L-ascorbic acid, and vitamin D3, and water to obtain a core slurry;

[0308] In the core slurry, add pectin and mix, heat to 70-80°C, then add collagen, continue to heat to boiling, and after cooling, the calcium supplement core wet material is obtained;

[0309] Place the mixed wet material into a strip material production device to prepare a strip;

[0310] Perform steaming treatment on the strip, the steaming treatment temperature is 85-95°C, and the steaming treatment time is 20-30 minutes, and after cutting, wet granules are obtained;

[0311] The wet particles are freeze-dried; the freeze-drying conditions include: freezing temperature: -50°C to -40°C; freezing time: at least 24 hours; cold trap temperature of -45°C; heating rate of 10°C / h; final temperature of 60°C; vacuum degree of 10-70 Pa; and the moisture content of the animal calcium supplement product is controlled between 2% and 5%, thereby finally obtaining the animal calcium supplement product, which is Example 1.

[0312] Example 2: In this example, the total amount of raw materials is 100 parts, including the following parts by weight: 10 parts of calcium hydrogen phosphate, 10 parts of milk calcium, 5 parts of yucca powder, 5 parts of lactose-free milk powder, 5 parts of duck fat, 5 parts of chicken hydrolyzed powder, 5 parts of fructooligosaccharide, 2.5 parts of casein phosphopeptide, 2.5 parts of gellan gum, 2.5 parts of fermented soybean meal, 5 parts of L-lysine hydrochloride, 0.25 parts of collagen, 0.25 parts of citric acid, 0.25 parts of rosemary extract and 0.05 parts of vitamin D3, and the rest is water.

[0313] The specific preparation process is as follows:

[0314] Mixing calcium hydrogen phosphate, milk calcium, yucca flour, lactose-free milk powder, duck fat, chicken hydrolyzed powder, fructooligosaccharide, casein phosphopeptide, fermented soybean meal, L-lysine hydrochloride, citric acid, rosemary extract, vitamin D3, and water to obtain a core slurry;

[0315] Add gellan gum to the core slurry, mix, heat to 70-80° C., then add collagen, continue heating to boiling, and cool to obtain a calcium-supplemented core wet material;

[0316] placing the mixed wet material into a strip material production device to prepare a strip;

[0317] Steaming the strips at a temperature of 85° C. to 95° C. for 20 to 30 minutes, and cutting to obtain wet granules;

[0318] The wet particles are freeze-dried; the freeze-drying conditions include: freezing temperature: -50°C to -40°C; freezing time: at least 24 hours; cold trap temperature of -45°C; heating rate of 10°C / h; final temperature of 60°C; vacuum degree of 10-70 Pa; and the moisture content of the animal calcium supplement product is controlled between 2% and 5%, thereby finally obtaining the animal calcium supplement product, which is Example 2.

[0319] Example 3: In this example, the total amount of raw materials is 100 parts, including the following parts by weight: 10 parts of calcium hydrogen phosphate, 10 parts of lactic calcium, 5 parts of sucrose, 5 parts of lactose-free goat milk powder, 5 parts of chicken oil, 5 parts of chicken hydrolyzed paste, 5 parts of fructooligosaccharides, 2.5 parts of casein phosphopeptide, 2.5 parts of sodium carboxymethyl cellulose, 2.5 parts of yeast hydrolyzate, 5 parts of L-lysine hydrochloride, 0.25 parts of collagen, 0.25 parts of potassium sorbate, 0.25 parts of natural vitamin E and 0.05 parts of vitamin D3, and the rest is water.

[0320] The specific preparation process is as follows:

[0321] Mixing calcium hydrogen phosphate, milk calcium, sucrose, lactose-free goat milk powder, chicken fat, chicken hydrolyzed paste, fructooligosaccharide, casein phosphopeptide, yeast hydrolyzate, L-lysine hydrochloride, potassium sorbate, natural vitamin E and vitamin D3, and water to obtain a core slurry;

[0322] Add sodium carboxymethyl cellulose to the core slurry, mix, heat to 70-80° C., then add collagen, continue heating to boiling, and cool to obtain a calcium-supplemented core wet material;

[0323] placing the mixed wet material into a strip material production device to prepare a strip;

[0324] Steaming the strips at a temperature of 85° C. to 95° C. for 20 to 30 minutes, and cutting to obtain wet granules;

[0325] The wet particles are freeze-dried; the freeze-drying conditions include: freezing temperature: -50°C to -40°C; freezing time: at least 24 hours; cold trap temperature of -45°C; heating rate of 10°C / h; final temperature of 60°C; vacuum degree of 10-70 Pa; and the moisture content of the animal calcium supplement product is controlled between 2% and 5%, thereby finally obtaining the animal calcium supplement product, which is Example 3.

[0326] Example 4: In this example, the total amount of raw materials is 100 parts, including the following parts by weight: 2 parts of calcium hydrogen phosphate, 2 parts of milk calcium, 10 parts of marigold powder, 10 parts of lactose-free goat milk powder, 10 parts of butter, 10 parts of beef hydrolyzed paste, 10 parts of fructooligosaccharides, 0.5 parts of casein phosphopeptide, 0.5 parts of pectin, 0.5 parts of fermented apples, 5 parts of L-lysine hydrochloride, 0.05 parts of collagen, 0.05 parts of sodium benzoate, 0.05 parts of L-ascorbic acid and 0.005 parts of vitamin D3, and the rest is water.

[0327] The specific preparation process is as follows:

[0328] Mixing calcium hydrogen phosphate, milk calcium, marigold powder, lactose-free goat milk powder, butter, beef hydrolyzed cream, fructooligosaccharide, casein phosphopeptide, fermented apple, L-lysine hydrochloride, sodium benzoate, L-ascorbic acid, vitamin D3, and water to obtain a core slurry;

[0329] Add pectin to the core slurry, mix, heat to 70-80° C., then add collagen, continue heating to boiling, and cool to obtain a calcium-supplemented core wet material;

[0330] A gastric acid secretion promoting shell is added to the outside of the calcium supplement core wet material and coated on the outer surface of the calcium supplement core; the gastric acid secretion promoting shell has a total amount of 100 parts and includes the following components: 60 parts of beef powder, 20 parts of potato starch, 10 parts of chicken fat, 0.2 parts of pectin, and the rest is water.

[0331] Mixing beef powder, potato starch, chicken fat, pectin and water to obtain the gastric acid secretion promoting shell wet material;

[0332] The gastric acid secretion promoting function wet shell material and the calcium supplementing core wet material are placed in two strip material production devices respectively, and the devices are operated simultaneously to extrude the strip material with the calcium supplementing core wet material wrapped by the gastric acid secretion promoting function wet shell material; in the strip material, the diameter of the calcium supplementing core wet material is 0.5 cm, and the outer diameter of the gastric acid secretion promoting function wet shell material is 0.7 cm;

[0333] Steaming the strips at a temperature of 85° C. to 95° C. for 20 to 30 minutes, and cutting to obtain wet granules;

[0334] The wet particles are freeze-dried; the freeze-drying conditions include: freezing temperature: -50°C to -40°C; freezing time: at least 24 hours; cold trap temperature of -45°C; heating rate of 10°C / h; final temperature of 60°C; vacuum degree of 10-70 Pa; and the moisture content of the animal calcium supplement product is controlled between 2% and 5%, thereby finally obtaining the animal calcium supplement product, which is Example 4.

[0335] Example 5: In this example, the total amount of raw materials is 100 parts, including the following parts by weight: 10 parts of calcium hydrogen phosphate, 10 parts of milk calcium, 5 parts of yucca powder, 5 parts of lactose-free milk powder, 5 parts of duck fat, 5 parts of chicken hydrolyzed powder, 5 parts of fructooligosaccharides, 2.5 parts of casein phosphopeptide, 2.5 parts of gellan gum, 2.5 parts of fermented soybean meal, 5 parts of L-lysine hydrochloride, 0.25 parts of collagen, 0.25 parts of citric acid, 0.25 parts of rosemary extract and 0.05 parts of vitamin D3, and the rest is water.

[0336] The specific preparation process is as follows:

[0337] Mixing calcium hydrogen phosphate, milk calcium, sucrose, lactose-free goat milk powder, chicken fat, chicken hydrolyzed paste, fructooligosaccharide, casein phosphopeptide, yeast hydrolyzate, L-lysine hydrochloride, potassium sorbate, natural vitamin E and vitamin D3, and water to obtain a core slurry;

[0338] Add sodium carboxymethyl cellulose to the core slurry, mix, heat to 70-80° C., then add collagen, continue heating to boiling, and cool to obtain a calcium-supplemented core wet material;

[0339] A gastric acid secretion promoting shell is added to the outside of the calcium supplement core wet material and coated on the outer surface of the calcium supplement core; the gastric acid secretion promoting shell has a total amount of 100 parts, including the following components: 75 parts of mutton powder, 10 parts of corn starch, 5 parts of butter, 1 part of gellan gum, and the rest is water.

[0340] Mixing mutton powder, corn starch, butter, gellan gum and water to obtain the gastric acid secretion promoting shell wet material;

[0341] The gastric acid secretion promoting function wet shell material and the calcium supplementing core wet material are placed in two strip material production devices respectively, and the devices are operated simultaneously to extrude the strip material with the calcium supplementing core wet material wrapped by the gastric acid secretion promoting function wet shell material; in the strip material, the diameter of the calcium supplementing core wet material is 0.5 cm, and the outer diameter of the gastric acid secretion promoting function wet shell material is 0.7 cm;

[0342] Steaming the strips at a temperature of 85° C. to 95° C. for 20 to 30 minutes, and cutting to obtain wet granules;

[0343] The wet particles are freeze-dried; the freeze-drying conditions include: freezing temperature: -50°C to -40°C; freezing time: at least 24 hours; cold trap temperature of -45°C; heating rate of 10°C / h; final temperature of 60°C; vacuum degree of 10-70 Pa; and the moisture content of the animal calcium supplement product is controlled between 2% and 5%, thereby finally obtaining the animal calcium supplement product, which is Example 5.

[0344] Example 6: In the example, the total amount of raw materials is 100 parts, including the following parts by weight: 10 parts of calcium hydrogen phosphate, 10 parts of lactic calcium, 5 parts of sucrose, 5 parts of lactose-free goat milk powder, 5 parts of chicken oil, 5 parts of chicken hydrolyzed paste, 5 parts of fructooligosaccharides, 2.5 parts of casein phosphopeptide, 2.5 parts of sodium carboxymethyl cellulose, 2.5 parts of yeast hydrolyzate, 5 parts of L-lysine hydrochloride, 0.25 parts of collagen, 0.25 parts of potassium sorbate, 0.25 parts of natural vitamin E and 0.05 parts of vitamin D3, and the rest is water.

[0345] The specific preparation process is as follows:

[0346] Mixing calcium hydrogen phosphate, milk calcium, yucca powder, lactose-free milk powder, duck oil, chicken hydrolyzed powder, fructo-oligosaccharides, casein phosphopeptide, fermented soybean meal, L-lysine hydrochloride, citric acid, rosemary extract, and vitamin D3, and water to obtain a core slurry;

[0347] In the core slurry, sodium carboxymethyl cellulose is added and mixed, heated to 70-80°C, then collagen is added and heated to boiling, and after cooling, a calcium supplement core wet material is obtained;

[0348] On the outside of the calcium supplement core wet material, a gastric acid secretion promoting functional shell is added, which is wrapped around the outside of the calcium supplement core; the total amount of the gastric acid secretion promoting functional shell is 100 parts, which includes the following components: chicken meal 90 parts, wheat starch 3 parts, duck oil 1 part, sodium carboxymethyl cellulose 2 parts, and the rest is water.

[0349] Mixing chicken meal, wheat starch, duck oil, sodium carboxymethyl cellulose, and water to obtain the gastric acid secretion promoting functional shell wet material;

[0350] The gastric acid secretion promoting functional shell wet material and the calcium supplement core wet material are placed in two strip material production equipment respectively, and the strip material is extruded by wrapping the calcium supplement core wet material with the gastric acid secretion promoting functional shell wet material; in the strip material, the diameter of the calcium supplement core wet material is 0.5 cm, and the outer diameter of the gastric acid secretion promoting functional shell wet material is 0.7 cm;

[0351] During the process of mixing the wet material into a strip, a strip groove processing device is also added to the strip material production equipment, which is installed at the output position of the extruder, so that the surface of the strip has a groove structure;

[0352] The strip material is subjected to steaming treatment, the temperature of the steaming treatment is 85-95°C, and the time of the steaming treatment is 20-30 minutes, and after cutting, a wet granule is obtained;

[0353] The wet granule is subjected to freeze-drying treatment; the conditions of the freeze-drying treatment include: freezing temperature: -50°C to -40°C; freezing time: at least 24 hours; cold trap temperature: -45°C; heating rate: 10°C / h; final temperature: 60°C; vacuum degree: 10-70 Pa; the moisture content of the animal calcium supplement product is controlled to be between 2% and 5%, and finally the animal calcium supplement product is obtained, which is Example 6.

[0354] Comparative Example 1: In this comparative example, the total amount of raw materials is 100 parts, including the following parts by weight: 23 parts of casein, 30 parts of sucrose, 5 parts of corn oil, 5 parts of cellulose, 3.5 parts of mixed salt, 1 part of mixed vitamins, 0.2 parts of choline chloride, 0.3 parts of d1-methionine, and 32 parts of corn starch.

[0355] The specific preparation process is as follows: casein, sucrose, corn oil, cellulose, mixed salt, mixed vitamins, choline chloride, d1-methionine, and corn starch are mixed and stirred to obtain a feed mixture;

[0356] The feed mixture contains 0.15% calcium;

[0357] The feed mixture was evenly dropped into a large pot, water was added and mixed, and stewed for about 30 to 60 minutes until the aroma was released. After cooling, the mixture was pelletized using a swing pelletizer and dried in an oven to obtain the low-calcium feed, which is Comparative Example 1.

[0358] Comparative Example 2: In this comparative example, the total amount of raw materials is 100 parts, including the following parts by weight: 23 parts of casein, 30 parts of sucrose, 5 parts of corn oil, 5 parts of cellulose, 3.5 parts of mixed salt, 1 part of mixed vitamins, 0.2 parts of choline chloride, 0.3 parts of d1-methionine, and 32 parts of corn starch.

[0359] The specific preparation process is as follows: casein, sucrose, corn oil, cellulose, mixed salt, mixed vitamins, choline chloride, d1-methionine, and corn starch are mixed and stirred to obtain a feed mixture;

[0360] The feed mixture has a calcium content of 0.5%;

[0361] The feed mixture was evenly dropped into a large pot, water was added and mixed, and stewed for about 30 to 60 minutes until the aroma was released. After cooling, the mixture was granulated using a swing granulator, dried in an oven, and sealed in bags for storage to obtain the high-dose inorganic calcium feed, which is Comparative Example 2.

[0362] Comparative test experiment:

[0363] 1. Test experiment 1: Growth and development status investigation:

[0364] (1) Experimental methods:

[0365] Experimental Animals: This study used 80 weaned Sprague-Dawley rats, approximately four weeks old, weighing approximately 90 to 110 grams, all male and of the same sex. Clinically, the animals were healthy and in similar physical condition. Eight groups of 10 rats were considered. To improve accuracy and minimize research errors and to avoid competition for food, the rats were housed in individual metal cages during mealtimes.

[0366] Grouping: Rats were divided into 8 experimental groups. Groups 1 to 6 were fed a mixed feed with free access; the mixed feed was premixed by mixing the feeds of Examples 1 to 6 with the feeds of Comparative Example 1 at a final calcium content of 0.5%. Group 7 was fed the feed of Comparative Example 1 with free access; Group 8 was fed the feed of Comparative Example 2 with free access.

[0367] During this period, rats in each experimental group were provided with fresh and free deionized water as drinking water to avoid obtaining calcium from drinking water.

[0368] From the beginning to the end of the experiment, the body weight of rats in each experimental group was measured five times a week for a total of four weeks.

[0369] (2) Experimental results:

[0370] Table 6. Weight test results of different experimental groups

[0371]

[0372] In the above table, compared with groups 1 to 6: b, P < 0.05; compared with group 8: c, P < 0.05.

[0373] As shown in Table 6, at the end of the experiment, the weight of rats in Group 7 was significantly lower than that in Group 8 (p < 0.05), and the weight of rats in Group 8 was significantly lower than that in Groups 1-6 (p < 0.05). There was no significant difference in weight between Groups 1-6 (p > 0.05), indicating that calcium deficiency led to malnutrition and slow weight gain in the rats. The experimental group that received both inorganic and organic calcium supplementation was significantly higher than the group that received only inorganic calcium supplementation, indicating that the addition of an organic calcium source can improve the overall absorption efficiency of the calcium supplement, leading to better development.

[0374] 2. Test experiment 2: Investigation of calcium ion metabolism.

[0375] (1) Experimental methods:

[0376] Based on the experiments in test experiment 1, a metabolic test was started 21 days after the experiment. The food intake was recorded for 3 days and feces were collected for 72 hours. The calcium content in the feed and feces was determined, and the apparent calcium absorption rate was calculated.

[0377] Calcium intake (mg / d) = calcium content in feed (mg / g) × feed consumption (g / d);

[0378] Fecal calcium (mg / d) = fecal calcium content (mg / g) × fecal excretion (g / d);

[0379] 100.

[0380] (2) Experimental results:

[0381] Table 7. Intake calcium, fecal calcium and apparent calcium absorption rate of different experimental groups

[0382]

[0383] In the above table, calcium intake: compared with groups 4 to 6: b, P < 0.05; compared with group 1: c, P < 0.05; compared with groups 2 and 4: d, P < 0.05; compared with group 6: e: P < 0.05; fecal calcium: compared with group 8: b, P < 0.05; compared with group 5: c, P < 0.05; compared with group 4: d, P < 0.05; compared with groups 3 and 6: e, P < 0.05; apparent calcium absorption rate: compared with group 7: b, P < 0.05; compared with group 6: c, P < 0.05; compared with groups 1 to 5: d, P < 0.05.

[0384] As shown in Table 7, the calcium intake and fecal calcium of rats in the low-calcium feed group (Comparative Example 1) were significantly lower than those in the other groups (p < 0.05), but the apparent calcium absorption rate was the highest (p < 0.05). This was due to the severe lack of calcium intake in this group, indicating that the calcium absorption rate of rats in a state of severe calcium deficiency will be significantly higher than the normal level, so as to improve the physiological condition of calcium deficiency in the body as soon as possible.

[0385] The calcium intake of groups 4 to 6 was significantly higher than that of groups 1 to 3, indicating that the shell covering the outer surface of the calcium supplement core can effectively promote gastric acid secretion, thereby further increasing the calcium intake of rats.

[0386] The apparent calcium absorption rates of groups 1 to 6 were significantly higher than those of group 8 (p < 0.05), indicating that the products prepared in Examples 1 to 6 not only contained milk calcium to provide calcium, but also contained other functional substances and functional structures that contributed to calcium absorption, thereby improving the overall calcium absorption efficiency. The calcium supplementation effects were significantly better than those of the simple inorganic calcium group.

[0387] The apparent calcium absorption rate of group 6 was significantly better than that of the other groups, indicating that the strip-shaped grooves effectively improved the particle structure, increased the contact area between the gastrointestinal tract and the sample, and stimulated gastric acid secretion, thus making it more conducive to the digestion and absorption of calcium in rats.

[0388] 3. Test Experiment 3: Blood biochemical test.

[0389] (1) Experimental method: Based on the experiment in Test Experiment 1, blood was collected from each experimental group after 3 weeks of experiment. The tail tip was cut off about 0.2-0.3 cm, and the first drop of blood was wiped off. Then the tail blood was quantitatively absorbed with a capillary tube, and the wound was compressed with a cotton ball to stop bleeding after blood collection. The amount of blood collected each time was 0.3-0.5 mL. The collected blood samples were transferred to a test tube containing EDTA anticoagulant, and then the content changes of main minerals (calcium and phosphorus) in the blood were analyzed by using a fully automatic biochemical analyzer.

[0390] (2) Experimental results:

[0391] Table 8, content of calcium and phosphorus in blood before and after feeding in different experimental groups

[0392]

[0393] In the above table, blood calcium: compared with group 6: b, P<0.05; compared with group 3: c, P<0.05; compared with group 8: d, P<0.05; blood phosphorus: no significant difference between groups 1-8, P>0.05.

[0394] From Table 8, it can be seen that the serum calcium of the rats in group 7 was significantly lower than that in other groups (p<0.05), indicating that calcium deficiency can cause the content of blood calcium to be lower than the normal level, and seriously affect the growth and development of rats. Although samples 1-6 and group 8 can effectively maintain normal blood calcium levels, the serum calcium of the experimental groups consuming calcium supplement products is significantly higher than that of the group adding only inorganic calcium (p<0.05), indicating that the calcium supplement product of the embodiment can promote the absorption of calcium in the body of rats more than inorganic calcium. There is no significant difference in serum phosphorus between groups (p>0.05), indicating that the body supplementing the calcium supplement product has no obvious effect on serum phosphorus.

[0395] 4. Test Experiment 4: Gastric juice secretion amount investigation.

[0396] (1) Experimental method: Based on the experiment in Test Experiment 1, 3 rats were taken from each group for gastric juice secretion test before the last test sample was fed in each experimental group for 4 weeks. The rats were fasted and watered for 12 hours. Before the experiment, pentobarbital sodium solution was used for intraperitoneal anesthesia, the fur on the upper abdomen was cut off, a 3 cm long incision was made in the middle of the abdomen below the xiphoid process, the abdominal cavity was opened along the white line of the abdomen, and the stomach was taken out by ligation at the cardia. After the rats woke up, the test samples of each experimental group were fed, and 1 hour later, the animals were sacrificed, the abdomen was opened, the esophagus was clamped, and the stomach was taken out. The gastric juice was carefully collected and separated, and the gastric juice volume (L) was recorded. The pH value of the obtained gastric juice was measured by pH meter.

[0397] .

[0398] (2) Experimental results:

[0399] Table 9. Gastric juice secretion in different experimental groups

[0400]

[0401] In the above table, gastric juice pH value: compared with groups 1 to 3: b, P < 0.05; gastric juice secretion: compared with groups 4 to 6: b, P < 0.05.

[0402] As shown in Table 9, the gastric juice pH value of rats in groups 4 to 6 was significantly lower than that in groups 1 to 3 (p < 0.05), and the gastric juice secretion volume of rats in groups 4 to 6 was significantly higher than that of other groups (p < 0.05). This indicates that the shell covering the outer surface of the calcium supplement core can effectively stimulate the gastric acid secretion function, increase the gastric juice secretion volume, significantly reduce the gastric juice pH value, and dissociate calcium through gastric acid, which is beneficial to the digestion and absorption of calcium.

[0403] 5. Test experiment 5: palatability assessment.

[0404] (1) Experimental Method: 30 adult domestic cats were selected for palatability testing. A single-bowl test was conducted using the samples of Examples 1 to 6, Comparative Example 1, and Comparative Example 2. 100 g of one of the samples from Groups 1 to 8 was placed in the feeding tray daily for 8 days. The weight of the test sample before feeding was measured within each 24-hour period. The remaining weight of the test sample after feeding was then measured. The feed intake (g / d) and feed intake rate (%) were calculated using the following formulas.

[0405] Formula 1: ;

[0406] Formula 2: 100.

[0407] (2) Experimental results:

[0408] Table 10 Feed intake and feed intake rate of different experimental groups

[0409]

[0410] In the above table, feed intake: compared with group 4: b, P<0.05; compared with groups 1 to 3: c, P<0.05; feed intake rate: compared with group 4: b, P<0.05; compared with group 1: c, P<0.05; compared with groups 2 to 3: d, P<0.05.

[0411] As shown in Table 10, the food intake and feeding rate of cats in Groups 7 and 8 were significantly lower than those in the other groups (p < 0.05), indicating that the calcium supplement product had a high palatability.

[0412] In Examples 4 to 6, compared with Examples 1 to 3, the feed intake was relatively increased (p < 0.05), and the feed intake rate was also increased accordingly (p < 0.05), indicating that the shell covering the outer surface of the calcium supplement core can effectively improve the palatability of the calcium supplement product for domestic cats, which is beneficial to calcium intake.

[0413] There was no significant difference between groups 1 to 6 (p>0.05), indicating that cats have a higher palatability for calcium supplements, which is more conducive to the animals' calcium intake, supporting their bone health, improving nutrient absorption efficiency, and enhancing their overall health.

[0414] In summary, animal experiments, including growth and development tests in rats, metabolic tests, blood biochemistry tests, gastric juice secretion tests, and palatability tests in cats, demonstrated that the calcium supplement products of the six examples significantly promoted weight gain in rats, significantly increased calcium absorption and serum calcium levels, and that the outer shell coating the calcium core effectively promoted gastric acid secretion. The strip-shaped grooves on the calcium supplement particles effectively improved the particle structure, facilitating calcium digestion and absorption in rats. The calcium supplement products were significantly more effective than feed containing only inorganic calcium, and Example 6 was the optimal calcium supplement formula.

[0415] The above are preferred embodiments and corresponding examples of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the creative concept of the present invention, several modifications and improvements can be made, including but not limited to adjustments of proportions, processes, dosages and reaction vessels, all of which fall within the scope of protection of the present invention.

Claims

1. An animal calcium supplement product, characterized in that: The animal calcium supplement product is in the form of composite sandwich particles; The composite sandwich particles include a calcium supplement core and a gastric acid secretion promoting shell coated on the outer surface of the calcium supplement core; The calcium supplement core comprises the following components in parts by weight: 2 to 20 parts of calcium hydrogen phosphate; 2 to 20 parts of milk calcium; 1 to 10 parts of natural plant products; and 1 to 10 parts of lactose-free milk powder. 1 to 10 parts of animal oil; 1~10 parts of animal hydrolysate; 1~10 parts of fructooligosaccharide; 0.5 to 5 parts of casein phosphopeptide; 0.5 to 5 parts of thickener; 0.5 to 5 parts of microbial fermentation products; 0.5 to 5 parts of L-lysine hydrochloride; 0.05 to 0.5 parts of collagen; 0.05~0.5 parts of preservatives; Natural antioxidants 0.05 to 0.5 parts; Vitamin D3 0.005 to 0.1 parts; The gastric acid secretion promoting shell comprises the following components in parts by weight: 60 to 90 parts of meat powder; 3 to 30 parts of starch; 1 to 10 parts of animal oil; and 0.2 to 2 parts of a thickener. The meat powder comprises at least one of beef powder, mutton powder, and chicken powder. The gastric acid secretion promoting shell of the composite sandwich particle comprises a shell and at least one strip-shaped groove provided on the surface of the shell; The composite sandwich particles are prepared by freeze-drying, and the freeze-drying conditions include: freezing at -50°C to -40°C for at least 24 hours.

2. The animal calcium supplement product according to claim 1, characterized in that: The natural plant product includes at least one of sucrose, yucca powder and marigold powder.

3. The animal calcium supplement product according to claim 1, characterized in that: The lactose-free milk powder includes at least one of lactose-free goat milk powder and lactose-free cow milk powder.

4. The animal calcium supplement product according to claim 1, characterized in that: The animal hydrolyzate includes at least one of beef hydrolyzate paste, chicken hydrolyzate powder and chicken hydrolyzate paste.

5. The animal calcium supplement product according to claim 1, characterized in that: The microbial fermentation product comprises at least one of yeast hydrolysate, fermented soybean meal and fermented apple pomace.

6. The animal calcium supplement product according to claim 1, characterized in that: The preservative includes at least one of potassium sorbate, sodium benzoate and citric acid.

7. The animal calcium supplement product according to claim 1, characterized in that: The natural antioxidant comprises at least one of natural vitamin E, rosemary extract and L-ascorbic acid.

8. The animal calcium supplement product according to claim 1, characterized in that: The animal oil includes at least one of chicken oil, fish oil, beef tallow and duck oil.

9. The animal calcium supplement product according to claim 1, characterized in that: The thickener includes at least one of pectin, gellan gum and sodium carboxymethyl cellulose.

10. The animal calcium supplement product according to claim 1, characterized in that: The starch includes at least one of potato starch, corn starch and wheat starch.

11. The animal calcium supplement product according to claim 1, characterized in that: The animal oil includes at least one of chicken oil, fish oil, beef tallow and duck oil.

12. The animal calcium supplement product according to claim 1, characterized in that: The thickener includes at least one of pectin, gellan gum and sodium carboxymethyl cellulose.

13. A method for preparing the animal calcium supplement product according to any one of claims 1 to 12, characterized in that: include: preparing mixed wet materials; forming the mixed wet material into strips; The mixed wet material comprises a calcium-supplementing core wet material and a gastric acid secretion-promoting shell wet material; The method for preparing the calcium-supplementing core wet material comprises: mixing calcium hydrogen phosphate, lactic calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, a thickener, a microbial fermentation product, L-lysine hydrochloride, collagen, a preservative, a natural antioxidant, vitamin D3, and water, and subjecting the mixture to heat treatment to obtain the calcium-supplementing core wet material; the method for preparing the gastric acid secretion-promoting shell wet material comprises: mixing meat powder, starch, animal oil, a thickener, and water to obtain the gastric acid secretion-promoting shell wet material; steaming the strips and cutting them into wet granules; The wet granules are dried to obtain the animal calcium supplement product.

14. The method for preparing the animal calcium supplement product according to claim 13, wherein: The step of making the mixed wet material into a strip-shaped object comprises: placing the mixed wet material into a strip-shaped material production device to prepare the strip-shaped object.

15. The method for preparing the animal calcium supplement product according to claim 13, wherein: The temperature of the steaming treatment is 85° C. to 95° C.

16. The method for preparing the animal calcium supplement product according to claim 14, wherein: The steaming time is 20 to 30 minutes.

17. The method for preparing the animal calcium supplement product according to claim 14, wherein: The drying process is freeze-drying; The freeze-drying process conditions include: Freezing temperature: -50℃~-40℃; Freezer time: at least 24 hours.

18. The method for preparing the animal calcium supplement product according to claim 17, wherein: The setting conditions of the freeze drying equipment of the freeze drying process are: The cold trap temperature is -45°C; The heating rate is 10℃ / h; The final temperature is 60°C; The vacuum degree is 10 Pa~70Pa.

19. The method for preparing the animal calcium supplement product according to claim 17, wherein: During the freeze-drying process, the moisture content of the animal calcium supplement product is controlled between 2% and 5%.

20. The method for preparing the animal calcium supplement product according to claim 13, wherein: The calcium supplement core wet material is obtained by mixing calcium hydrogen phosphate, milk calcium, natural plant products, lactose-free milk powder, animal oil, animal hydrolyzate, fructooligosaccharide, casein phosphopeptide, thickener, microbial fermentation product, L-lysine hydrochloride, collagen, preservative, natural antioxidant, vitamin D3, and water, and heat-treating the mixture. The mixture comprises: Based on a unit dose of 100 parts, 2 to 20 parts of calcium hydrogen phosphate, 2 to 20 parts of milk calcium, 1 to 10 parts of natural plant products, 1 to 10 parts of lactose-free milk powder, 1 to 10 parts of animal oil, 1 to 10 parts of animal hydrolyzate, 1 to 10 parts of fructooligosaccharide, 0.5 to 5 parts of casein phosphopeptide, 0.5 to 5 parts of microbial fermentation product, 0.5 to 5 parts of L-lysine hydrochloride, 0.05 to 0.5 parts of preservatives, 0.05 to 0.5 parts of natural antioxidants, 0.005 to 0.1 parts of vitamin D3, and water are mixed to obtain a core slurry; 0.5 to 5 parts of thickener are added to the core slurry, mixed, heated to 70° C. to 80° C., and then 0.05 to 0.5 parts of collagen are added, and the mixture is heated to boiling. After cooling, the calcium-supplemented core wet material is obtained.

21. The method for preparing the animal calcium supplement product according to claim 13, wherein: The meat powder, starch, animal oil, thickener, and water are mixed to obtain the gastric acid secretion promoting shell wet material, which comprises: Based on a unit dose of 100 parts, 60 to 90 parts of meat powder, 3 to 30 parts of starch, 1 to 10 parts of animal oil, 0.2 to 2 parts of thickener, and water are mixed to obtain the wet shell material with the function of promoting gastric acid secretion.

22. The method for preparing the animal calcium supplement product according to claim 13, wherein: The step of forming the mixed wet material into strips comprises: The gastric acid secretion promoting function shell wet material and the calcium supplementing core wet material are placed in two strip material production devices respectively, and the strips with the calcium supplementing core wet material wrapped by the gastric acid secretion promoting function shell wet material are extruded simultaneously.

23. The method for preparing the animal calcium supplement product according to claim 22, wherein: In the strips, the diameter of the calcium-supplementing core wet material is 0.5 cm.

24. The method for preparing the animal calcium supplement product according to claim 22, wherein: In the strip, the outer diameter of the wet material of the gastric acid secretion promoting shell is 0.7 cm.

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