A feed for feeding bullfrogs

Abstract

The application discloses a feed for feeding bullfrog, which comprises photosynthetic bacteria, pseudomonas chlororaphis, bacillus amyloliquefaciens and protein hydrolytic enzyme; the sugar component comprises fructose and glucose; the bone source component is bovine bone powder; and the auxiliary nutritional component is at least one selected from vitamin premix, mineral premix and amino acid premix. The formula is scientific and reasonable, and the feed is comprehensive and balanced in nutrition. The biological bacteria, sugar, bone source and various auxiliary nutritional components synergistically act to meet the requirements of bullfrog at various growth stages. The added biological bacteria and enzymes can improve the digestion and utilization rate, reduce the nutrition waste and breeding cost. The antioxidant and the mildew-proof agent guarantee the good storage performance of the feed, prolong the shelf life and ensure the edible safety. The raw materials and production are strictly controlled, the biological safety is enhanced, and the disease risk is reduced.

Description

Technical Field

[0001] This invention relates to the field of bullfrog feed production technology, specifically a feed for raising bullfrogs. Background Technology

[0002] In the bullfrog farming industry, the quality and formulation of feed play a crucial role in the growth, development, health, and economic benefits of bullfrogs. Currently available bullfrog feeds on the market have several shortcomings, as detailed below: 1. Imbalanced Nutritional Composition: Many traditional bullfrog feeds are not scientifically and rationally formulated in terms of nutritional composition. On the one hand, some feeds rely on a single protein source, depending on only one or a few protein sources, failing to meet the bullfrog's needs for various essential amino acids at different growth stages, resulting in slow growth and low feed conversion rates. For example, some feeds are mainly plant-based proteins, lacking supplementation with animal protein, leading to poor protein digestion and absorption by the bullfrogs. On the other hand, the types and amounts of vitamins and minerals often fail to meet the physiological needs of bullfrogs. Bullfrogs require a variety of vitamins and minerals to maintain normal physiological functions during growth. For example, vitamin A is crucial for the bullfrog's vision and epithelial tissue health, while minerals such as calcium and phosphorus play a key role in bone development. However, the addition of these nutrients in existing feeds may be incomplete or inaccurate, easily causing nutritional deficiencies in bullfrogs and affecting their growth and reproductive capacity.

[0003] 2. Low digestibility and utilization: The digestibility and utilization of existing bullfrog feed needs improvement. The texture and structure of some feed ingredients are not conducive to the digestion and absorption of bullfrogs. For example, some bone-derived components are added directly to the feed without special treatment, making them difficult for bullfrogs to digest and absorb. This not only wastes nutrients but may also affect the intestinal health of bullfrogs. In addition, the feed lacks digestive bacteria and enzymes that aid digestion. The bullfrog's own digestive enzymes may not be able to fully break down the large molecular nutrients in the feed, resulting in the feed not being effectively utilized in the intestines and increasing breeding costs.

[0004] 3. Poor Preservation Performance: Existing products have significant shortcomings in feed preservation. Due to the lack of effective antioxidants and mold inhibitors, feed is easily affected by oxygen, moisture, and microorganisms during storage, leading to oxidative deterioration and mold growth. Oxidation destroys nutrients such as fats and vitamins in the feed, reducing its nutritional value; mold growth produces toxic and harmful substances, such as aflatoxin, posing a serious threat to the health of bullfrogs and even causing their death. This not only causes economic losses for farmers but may also affect the sustainable development of the entire aquaculture industry.

[0005] 4. Biosafety Issues: Some bullfrog feeds may introduce harmful microorganisms or chemical contaminants during production. For example, feed ingredients may be contaminated with mold, bacteria, or other microorganisms, or substandard additives may be used during processing, all of which can negatively impact the health of bullfrogs. Furthermore, some feeds may contain residual pesticides, heavy metals, or other harmful substances. Long-term feeding can lead to the accumulation of these harmful substances in the bullfrogs' bodies, affecting their quality and safety for consumption, and consequently impacting the market sales of bullfrog products. Summary of the Invention

[0006] The purpose of this invention is to provide a feed for raising bullfrogs to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a feed for raising bullfrogs, comprising the following components: Biological components, carbohydrate components, bone-derived components, and auxiliary nutritional components; The microbial components include photosynthetic bacteria, pseudogreen photosynthetic bacteria, Bacillus amyloliquefaciens, and proteolytic enzymes; the carbohydrate components include fructose and glucose; the bone source component is bovine bone meal; and the auxiliary nutrient components are selected from at least one of vitamin premix, mineral premix, and amino acid premix.

[0008] Optionally, in the biological components, the content of photosynthetic bacteria is 0.1% to 2% of the total feed weight, the content of pseudogreen photosynthetic bacteria is 0.05% to 1.5% of the total feed weight, the content of Bacillus amyloliquefaciens is 0.2% to 3% of the total feed weight, and the content of protein hydrolytic enzymes is 0.01% to 0.5% of the total feed weight.

[0009] Optionally, in the sugar components, the mass ratio of fructose to glucose is 1:(0.5~2), and the total content of fructose and glucose accounts for 5%~20% of the total weight of the feed.

[0010] Optionally, the content of the bone source component, bovine bone meal, is 3% to 15% of the total weight of the feed, and the bovine bone meal is enzymatically hydrolyzed to improve its digestibility.

[0011] Optionally, the vitamin premix in the supplementary nutrients includes vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, and vitamin B1. 12 It contains at least five of the following: niacin, pantothenic acid, folic acid, and biotin, and the vitamin premix contains 0.01% to 0.5% of the total feed weight.

[0012] Optionally, the mineral premix in the auxiliary nutrients includes at least five of the following: calcium, phosphorus, magnesium, iron, zinc, copper, manganese, iodine and selenium, and the content of the mineral premix is ​​0.5% to 5% of the total weight of the feed.

[0013] Optionally, the amino acid premix in the auxiliary nutrient components includes at least three of lysine, methionine, threonine, tryptophan and valine, and the content of the amino acid premix is ​​0.1% to 2% of the total feed weight.

[0014] Optionally, the feed may further include a plant-based protein source, which is selected from at least one of soybean meal, rapeseed meal, cottonseed meal and peanut meal, and the content of the plant-based protein source is 10% to 30% of the total weight of the feed.

[0015] Optionally, the feed may further contain an animal protein source selected from at least one of fish meal, blood meal, and meat and bone meal, and the content of the animal protein source is 5% to 20% of the total weight of the feed.

[0016] Optionally, the feed further includes an antioxidant and a mold inhibitor. The antioxidant is selected from at least one of ethoxyquinoline, butylated hydroxyanisole, and butylated hydroxytoluene, and its content is 0.005% to 0.05% of the total weight of the feed. The mold inhibitor is selected from at least one of calcium propionate, potassium sorbate, and sodium benzoate, and its content is 0.01% to 0.1% of the total weight of the feed.

[0017] A method for preparing feed for raising bullfrogs, specifically including the following steps: S1. Raw Material Preparation: Prepare various raw materials according to the above formula: For the bacterial components, culture photosynthetic bacteria, pseudogreen photosynthetic bacteria, and Bacillus amyloliquefaciens to the late logarithmic growth phase, collect the bacterial cells, and weigh them according to the specified proportions. Simultaneously, weigh the specified amount of protein hydrolyzing enzyme. For the carbohydrate components, mix fructose and glucose in the specified proportions to ensure the total content meets the standards. For the bone source components, select high-quality bovine bones, which are washed, crushed, enzymatically hydrolyzed, dried, and ground before weighing. For the auxiliary nutritional components, select multiple components of vitamins, minerals, and amino acid premixes as required, mix them, and weigh them. In addition, accurately weigh the plant-based and animal-based protein sources, as well as antioxidants and antifungal agents. S2. Mixing and Stirring: Place the weighed plant-based and animal-based protein sources into a mixer and stir for 3-5 minutes to ensure even distribution. Next, add the carbohydrate mixture and continue stirring for 2-3 minutes to promote thorough contact. Then add the bone meal (beef bone powder) and stir for 3-4 minutes to achieve even dispersion. Following this, add the probiotics and protein hydrolysates sequentially and stir for 5-7 minutes to ensure even distribution. Next, add the supplementary nutrients and stir for 4-6 minutes to fully mix. Finally, add the antioxidants and antifungal agents and stir for 2-3 minutes to complete the mixing of all ingredients. S3. Pelletizing: The mixed feed ingredients are fed into a pellet mill using a conveying device. The pellet mill die diameter (generally 2-4 mm) and compression ratio are adjusted according to the bullfrogs' feeding habits and feed specifications. The pellet mill temperature is controlled at 70-90℃ and the pressure at 2-5 MPa, allowing the feed ingredients to be formed into pellets under high temperature and high pressure. During pelleting, the pellet quality is closely monitored to ensure a smooth surface and suitable hardness to meet the bullfrogs' dietary requirements. S4. Cooling and Drying: The prepared pelleted feed is first cooled in a cooler for 10-15 minutes to lower the temperature to near room temperature, preventing clumping due to excessive temperature and reducing moisture content. After cooling, it is dried at 50-60℃ for 20-30 minutes using drying equipment to further reduce moisture, keeping the feed moisture content between 10% and 12% to ensure stability during storage and prevent spoilage. S5. Packaging and Storage: After drying, the feed pellets are screened to remove broken and substandard pellets, ensuring uniform quality. Packaging materials that meet food hygiene standards are used, and packaging specifications (e.g., 5kg / bag, 10kg / bag) are determined according to market demand and farmers' habits. The packaged feed is stored in a dry, ventilated, and cool warehouse, avoiding direct sunlight and humid environments to ensure feed quality, extend its shelf life, and facilitate subsequent use and sales.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention provides a feed for raising bullfrogs with a scientifically formulated and nutritionally balanced composition. The synergistic effect of beneficial bacteria, carbohydrates, bone marrow, and various auxiliary nutrients meets the needs of bullfrogs at each growth stage. The added beneficial bacteria and enzymes improve digestibility and utilization, reduce nutrient waste, and lower breeding costs. Antioxidants and antifungal agents ensure good feed preservation, extend shelf life, and ensure food safety. Strict control over raw materials and production enhances biosafety and reduces disease risk. Furthermore, it significantly improves bullfrog growth rate, feed conversion rate, and survival rate, promoting the large-scale and standardized development of the bullfrog farming industry, enhancing industry competitiveness, and increasing farmers' income.

[0019] 2. In this invention, the feed formula is scientifically sound and includes beneficial microorganisms, carbohydrates, bone-derived components, and various auxiliary nutrients. The beneficial microorganisms, including photosynthetic bacteria, pseudogreen photosynthetic bacteria, Bacillus amyloliquefaciens, and protein hydrolysants, work synergistically to not only aid in the digestion and absorption of nutrients in the feed by bullfrogs but also regulate the balance of their intestinal flora and enhance their immunity. The carbohydrates provide energy; fructose and glucose are combined in a specific ratio to meet the energy needs of bullfrogs at different growth stages. The bone-derived component, bovine bone meal, undergoes enzymatic hydrolysis, improving its digestibility and providing bullfrogs with abundant calcium, phosphorus, and other minerals, which are beneficial for bone development. The auxiliary nutrients, including vitamin premixes, mineral premixes, and amino acid premixes, contain various vitamins, minerals, and amino acids essential for bullfrog growth, ensuring that bullfrogs receive comprehensive and balanced nutrition and promoting their healthy growth and development.

[0020] 3. In this invention, the added microbial components and protein-hydrolyzing enzymes in the feed can effectively decompose macromolecular nutrients in the feed, such as proteins and carbohydrates, converting them into smaller molecules that are easier for bullfrogs to digest and absorb. This greatly improves the digestibility and utilization rate of feed by bullfrogs, reduces nutrient waste, and lowers breeding costs. Simultaneously, the enzymatically hydrolyzed bone meal is more easily digested and absorbed by bullfrogs, further improving the utilization efficiency of bone-derived nutrients.

[0021] 4. In this invention, antioxidants and mold inhibitors are added to the feed, effectively extending its shelf life. Antioxidants inhibit fat oxidation in the feed, preventing the destruction of nutrients such as vitamins and maintaining the feed's nutritional value and freshness. Mold inhibitors inhibit the growth and reproduction of mold and other microorganisms, preventing feed spoilage, reducing the production of toxic and harmful substances, and ensuring the safety of bullfrogs for consumption. Farmers can store and use feed with greater peace of mind, reducing economic losses caused by feed spoilage.

[0022] 5. In this invention, the feed undergoes strict quality control during raw material selection and production, avoiding the introduction of harmful microorganisms and chemical contaminants. High-quality raw materials are selected to ensure the feed is free of pesticide, heavy metal, and other harmful substance residues. Simultaneously, the addition of beneficial microorganisms helps maintain a healthy intestinal microecological environment for bullfrogs, inhibiting the growth of harmful bacteria, reducing the risk of bullfrog diseases, improving the biosafety of bullfrogs, and ensuring the quality and market competitiveness of bullfrog products.

[0023] 6. The feed for raising bullfrogs according to this invention can significantly improve the growth rate, feed conversion rate, and survival rate of bullfrogs, reduce breeding costs, and improve the economic benefits of breeding. This has an important driving effect on the bullfrog breeding industry, helps to increase the income level of farmers, promotes the large-scale and standardized development of the bullfrog breeding industry, and enhances the market competitiveness of the entire industry. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating the method for preparing feed for raising bullfrogs according to the present invention. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1 Please see Figure 1 A type of feed for raising bullfrogs, comprising the following components: Biological components, carbohydrate components, bone-derived components, and auxiliary nutritional components; The microbial components include photosynthetic bacteria, pseudogreen photosynthetic bacteria, Bacillus amyloliquefaciens, and proteolytic enzymes; the carbohydrate components include fructose and glucose; the bone source component is bovine bone meal; and the auxiliary nutrients are selected from at least one of vitamin premix, mineral premix, and amino acid premix. These components work synergistically to provide bullfrogs with comprehensive and balanced nutrition, meeting the needs of different growth stages. Simultaneously, the microbial components and enzymes improve digestibility and utilization, while antioxidants and antifungal agents ensure feed quality, promote healthy bullfrog growth, and improve farming efficiency.

[0027] To rationally control the content of the beneficial microbial components and ensure their positive promoting effect on the bullfrog's digestive system, in this embodiment: the content of photosynthetic bacteria-like organisms is 0.1%~2% of the total feed weight, the content of pseudogreen photosynthetic bacteria is 0.05%~1.5% of the total feed weight, the content of Bacillus amyloliquefaciens is 0.2%~3% of the total feed weight, and the content of protein hydrolytic enzymes is 0.01%~0.5% of the total feed weight. This ratio can effectively regulate the balance of the bullfrog's intestinal flora, improve feed digestibility, and promote nutrient absorption.

[0028] To provide a suitable proportion of carbohydrates to meet the energy needs of bullfrogs without affecting their digestive function, in this embodiment, the mass ratio of fructose to glucose is 1:(0.5~2), and the total content of fructose and glucose accounts for 5%~20% of the total weight of the feed. This proportion and content of carbohydrates can quickly provide energy for bullfrogs and maintain their normal physiological activities.

[0029] To provide a high-quality and easily digestible calcium source and ensure healthy bone development in bullfrogs, in this embodiment: the content of the bone source component, bovine bone meal, is 3% to 15% of the total feed weight, and the bovine bone meal undergoes enzymatic hydrolysis to improve its digestibility. Enzymatically hydrolyzed bovine bone meal is more readily absorbed and utilized by bullfrogs for its calcium and other minerals, thus enhancing bone strength.

[0030] To comprehensively supplement the various vitamins required for bullfrog growth and ensure the normal functioning of their physiological systems, in this embodiment: the vitamin premix in the auxiliary nutrient components includes vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, and vitamin B1. 12 The premix should contain at least five of the following: niacin, pantothenic acid, folic acid, and biotin, with the vitamin premix comprising 0.01% to 0.5% of the total feed weight. A balanced combination of multiple vitamins helps regulate the immune system and metabolism in bullfrogs.

[0031] To meet the bullfrog's need for various minerals and maintain electrolyte balance and physiological stability, in this embodiment, the mineral premix in the auxiliary nutrient components contains at least five of the following: calcium, phosphorus, magnesium, iron, zinc, copper, manganese, iodine, and selenium, and the content of the mineral premix is ​​0.5% to 5% of the total feed weight. These minerals play a crucial role in the bullfrog's bone development, blood formation, and enzyme activity.

[0032] To provide the essential amino acids for bullfrog growth and promote protein synthesis and development, in this embodiment, the amino acid premix in the supplementary nutrient component contains at least three of the following: lysine, methionine, threonine, tryptophan, and valine, and the content of the amino acid premix is ​​0.1% to 2% of the total feed weight. Appropriate amino acid supplementation can improve the nutritional value of the feed and promote rapid growth in bullfrogs.

[0033] To provide abundant plant-based protein to meet some of the bullfrog's protein requirements, and because the sources are widely available and relatively inexpensive, in this embodiment, the feed also includes a plant-based protein source. This plant-based protein source is selected from at least one of soybean meal, rapeseed meal, cottonseed meal, and peanut meal, and its content is 10% to 30% of the total feed weight. The plant-based protein source provides the bullfrog with essential protein and other nutrients.

[0034] To provide high-quality animal protein with an amino acid composition closer to that of bullfrogs, making it easier for them to absorb and utilize, in this embodiment, the feed also contains an animal protein source selected from at least one of fish meal, blood meal, and meat and bone meal, and the content of the animal protein source is 5% to 20% of the total feed weight. The animal protein source can improve the protein quality and utilization efficiency of the feed, promoting bullfrog growth.

[0035] To prevent feed oxidation, spoilage, and mold growth, extend its shelf life, and ensure feed quality and safety, in this embodiment, the feed further includes antioxidants and mold inhibitors. The antioxidants are selected from at least one of ethoxyquinoline, butylated hydroxyanisole, and butylated hydroxytoluene, and their content is 0.005% to 0.05% of the total feed weight. The mold inhibitors are selected from at least one of calcium propionate, potassium sorbate, and sodium benzoate, and their content is 0.01% to 0.1% of the total feed weight. These antioxidants and mold inhibitors effectively protect the nutrients in the feed and prevent feed spoilage from affecting the health of the bullfrogs.

[0036] Example 2 Please see Figure 1 A method for preparing feed for raising bullfrogs, specifically including the following steps: S1. Preparation of raw materials To ensure the quality and accuracy of the feed components and lay the foundation for producing high-quality feed, various raw materials were prepared according to the above feed formula: For the microbial components, photosynthetic bacteria, pseudogreen photosynthetic bacteria, and Bacillus amyloliquefaciens were cultured until the late logarithmic growth phase, at which point the bacteria were highly active and numerous, allowing them to better fulfill their role in the feed. These were weighed according to the prescribed proportions, along with a specified amount of protein hydrolysate. For the carbohydrate components, fructose and glucose were mixed in a precise ratio, with their proportions and total content carefully controlled to ensure a stable energy source for the bullfrogs. For the bone source components, high-quality cattle bones were selected, cleaned to remove impurities, crushed to increase surface area, enzymatically hydrolyzed to improve digestibility, dried to remove moisture, and ground into fine cattle bone powder before weighing. For the auxiliary nutrients, vitamins, minerals, and amino acid premixes were selected, mixed, and weighed according to requirements to ensure a comprehensive supplementation of various micronutrients. In addition, plant-based and animal-based protein sources, as well as antioxidants and antifungal agents, were accurately weighed to ensure that the content of each component met the formula requirements.

[0037] S2, Mixing and stirring To ensure thorough and uniform mixing of feed ingredients and a balanced nutritional intake for each bullfrog feed, weighed plant and animal protein sources are placed in a mixer and initially mixed for 3-5 minutes to ensure even distribution, providing a good foundation for subsequent ingredient mixing. Next, the carbohydrate mixture is added and mixed for another 2-3 minutes to promote full contact and better combine the carbohydrates with other ingredients. Then, beef bone meal is added and mixed for 3-4 minutes to achieve uniform dispersion, ensuring the minerals in the bone meal are evenly distributed throughout the feed. Following this, the beneficial microorganisms and protein hydrolyzing enzymes are added sequentially and mixed for 5-7 minutes to ensure even distribution, allowing the microorganisms and enzymes to fully function in the feed. Next, auxiliary nutrients are added and mixed for 4-6 minutes to ensure thorough mixing and even distribution of various micronutrients in the feed. Finally, antioxidants and mold inhibitors are added and mixed for 2-3 minutes to complete the mixing of all ingredients, ensuring the antioxidants and mold inhibitors evenly protect the feed.

[0038] S3, Granulation Processing To ensure the feed conforms to the feeding habits of bullfrogs, facilitating their consumption and digestion, and maintaining stable physical properties, a conveying system is used to feed the mixed feed ingredients into a pellet mill. Based on the bullfrogs' feeding habits and feed specifications, the pellet mill's die diameter (generally 2-4 mm) and compression ratio are adjusted to produce pellets of a suitable size for bullfrogs to swallow. The pellet mill temperature is controlled at 70-90℃, and the pressure at 2-5 MPa, allowing the feed ingredients to be shaped into pellets under high temperature and high pressure. High temperature kills some harmful microorganisms in the raw materials, and high pressure makes the pellets compact. During pelleting, the quality of the pellets is closely monitored to ensure a smooth surface and appropriate hardness to meet the bullfrogs' dietary needs. A smooth surface facilitates swallowing, and appropriate hardness aids chewing and digestion.

[0039] S4. Cooling and drying To prevent feed pellets from clumping due to excessive heat, which would affect feed quality and bullfrog feeding, and to reduce feed moisture content and extend shelf life, the prepared feed pellets are first cooled in a cooler for 10-15 minutes to bring the temperature close to room temperature, stabilizing the pellet structure. Cooling prevents pellet clumping and reduces moisture content. After cooling, the pellets are dried at 50-60°C for 20-30 minutes to further reduce moisture content, maintaining it between 10% and 12%. This ensures feed stability during storage and prevents mold growth due to excessive moisture, which could harm the bullfrogs' health.

[0040] S5. Packaging and Storage To ensure uniform feed pellet quality, facilitate sales and use, and extend shelf life, the dried feed pellets are screened to remove broken and substandard pellets, guaranteeing consistent quality in each bag. Packaging materials meeting food hygiene standards are used, and packaging specifications (e.g., 5kg / bag, 10kg / bag) are determined according to market demand and farmers' habits, facilitating storage and use. The packaged feed is stored in a dry, ventilated, and cool warehouse, avoiding direct sunlight and humid environments to maintain feed quality, extend shelf life, prevent spoilage due to environmental factors, and facilitate subsequent use and sale.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feed for raising bullfrogs, characterized in that: It includes the following components: Biological components, carbohydrate components, bone-derived components, and auxiliary nutritional components; The microbial components include photosynthetic bacteria, pseudogreen photosynthetic bacteria, Bacillus amyloliquefaciens, and proteolytic enzymes; the carbohydrate components include fructose and glucose; the bone source component is bovine bone meal; and the auxiliary nutrient components are selected from at least one of vitamin premix, mineral premix, and amino acid premix.

2. The feed for raising bullfrogs according to claim 1, characterized in that: The content of the microbial components is as follows: photosynthetic bacteria account for 0.1% to 2% of the total feed weight; pseudogreen photosynthetic bacteria account for 0.05% to 1.5% of the total feed weight; Bacillus amyloliquefaciens account for 0.2% to 3% of the total feed weight; and protein hydrolysates account for 0.01% to 0.5% of the total feed weight.

3. The feed for raising bullfrogs according to claim 2, characterized in that: The sugar components have a fructose to glucose mass ratio of 1:(0.5~2), and the total content of fructose and glucose accounts for 5%~20% of the total weight of the feed.

4. The feed for raising bullfrogs according to claim 3, characterized in that: The content of the bone source component, bovine bone meal, is 3% to 15% of the total weight of the feed, and the bovine bone meal is enzymatically hydrolyzed to improve its digestibility.

5. The feed for raising bullfrogs according to claim 4, characterized in that: The vitamin premix in the supplementary nutritional components includes vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, and vitamin B1. 12 It contains at least five of the following: niacin, pantothenic acid, folic acid, and biotin, and the vitamin premix contains 0.01% to 0.5% of the total feed weight.

6. The feed for raising bullfrogs according to claim 5, characterized in that: The mineral premix in the supplementary nutrients contains at least five of the following: calcium, phosphorus, magnesium, iron, zinc, copper, manganese, iodine, and selenium, and the content of the mineral premix is ​​0.5% to 5% of the total weight of the feed.

7. The feed for raising bullfrogs according to claim 6, characterized in that: The amino acid premix in the auxiliary nutrient component contains at least three of the following: lysine, methionine, threonine, tryptophan, and valine, and the content of the amino acid premix is ​​0.1% to 2% of the total feed weight.

8. The feed for raising bullfrogs according to claim 7, characterized in that: The feed also contains a plant-based protein source, which is selected from at least one of soybean meal, rapeseed meal, cottonseed meal and peanut meal, and the content of the plant-based protein source is 10% to 30% of the total weight of the feed.

9. The feed for raising bullfrogs according to claim 8, characterized in that: The feed also contains an animal protein source, which is selected from at least one of fish meal, blood meal and meat and bone meal, and the content of the animal protein source is 5% to 20% of the total weight of the feed.

10. The feed for raising bullfrogs according to claim 9, characterized in that: The feed also includes antioxidants and antifungal agents. The antioxidants are selected from at least one of ethoxyquinoline, butylated hydroxyanisole, and butylated hydroxytoluene, and their content is 0.005% to 0.05% of the total weight of the feed. The antifungal agents are selected from at least one of calcium propionate, potassium sorbate, and sodium benzoate, and their content is 0.01% to 0.1% of the total weight of the feed.

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