Environment-friendly hermetia illucens breeding feed and preparation method thereof

Abstract

The invention discloses an environment-friendly hermetia illucens breeding feed and a preparation method thereof, and mainly relates to the technical field of invertebrate breeding. Compared with the prior art, the environment-friendly hermetia illucens breeding feed can improve the high protein content of hermetia illucens bodies and reduce breeding stink at the same time, conversion and absorption of nutrient substances in the feed are jointly promoted by using rotten vegetable and fruit raw materials, saccharomyces cerevisiae, corn flour, wheat bran, peanut bran and composite strains, generation of beneficial metabolites is increased, and the breeding efficiency of hermetia illucens is improved. The deodorant composed of citrus flavone, moringa oleifera leaf protein and sodium alginate can effectively adsorb and inhibit the emission of malodorous gases such as ammonia gas, and improve the breeding environment.

Description

Technical Field

[0001] The invention relates to the technical field of invertebrate breeding, and in particular to an environmentally friendly black soldier fly breeding feed and a preparation method thereof. Background Art

[0002] Black soldier flies are saprophytic insects of the family Solenopsis that feed on household garbage and livestock feces, such as kitchen waste, animal feces, rotten fruits and vegetables, carrion, and animal carcasses. Black soldier fly larvae are rich in protein and fat, making them an ideal choice for animal feed. The breeding of black soldier flies can ultimately achieve resource recycling. It takes 2-4 days for black soldier fly eggs to hatch, and the hatched larvae should be put into feed as soon as possible to start breeding. It generally takes about 35 days from eggs to adults. During the period from larvae to adults, the breeding can be made of raw grain processing materials such as soybean meal, bran, rice bran, peanut bran, corn flour, or food industry waste such as distiller's grains, tofu residues, and cassava residues. The feed composition is made by mixing a certain proportion of raw grain processing materials and adding water to ferment. The available nutrients in the fermented feed are increased and can be better absorbed. Livestock feces are also one of the preferred feeds for black soldier fly breeding. They are widely available and cheap, especially chicken manure from chicks and fermented mixed feeds, which are more effective. Catering waste is extremely rich in nutrients and has a lot of residual energy, so it can also be used for breeding black soldier flies. However, it should be noted that the composition of catering waste is complex and needs to be simply crushed, filtered, and processed before feeding black soldier flies. Agricultural and sideline products such as rice bran and wheat bran are also high-quality feed sources for black soldier flies. In summary, black soldier fly breeding feed can achieve efficient breeding of black soldier flies and full utilization of resources through scientific and reasonable breeding methods and formula ratios.

[0003] In the prior art, the impact of odor on the environment is usually reduced by isolating and improving the breeding environment, and the ventilation system is upgraded to ensure good air circulation in the breeding area, reduce the accumulation of harmful gases, and thus reduce the odor. A biological filtration system can also be used to utilize microorganisms to degrade malodorous substances; specific probiotic additives can also be selected to promote the decomposition of organic matter in the feed while reducing the generation of malodorous gases; physical isolation measures can be adopted, such as closing breeding facilities or using adsorbent materials to reduce the spread of odor to the surrounding environment. The combined use of these methods can effectively improve the breeding environment of black soldier flies and reduce the impact on the surrounding environment. In order to increase the protein content of black soldier flies, the prior art focuses on optimizing feed formulas, adding high-protein raw materials such as soybean meal and insect protein powder, and using fermentation technology to improve nutritional value and digestibility, so as to enhance the immune function of black soldier flies and improve protein utilization efficiency, thereby enhancing its value as a feed raw material.

[0004] CN117179126A discloses a method for preparing insect feed using food waste. The invention reduces the contents of water, oil and crude protein in the food waste, kills harmful microorganisms, etc., by removing impurities, dehydrating, degreasing and sterilizing the collected food waste, so that the food waste is not easy to rot and deteriorate, and the breeding environment is improved; by adding composite probiotics to the food waste for fermentation treatment, not only the nutritional structure of the food waste is adjusted, the flavor is added, and the digestion and absorption rate of insects is improved, but also the antibacterial components are secreted by the composite probiotics, so that the use of antibiotics in feed is reduced or replaced, and the food waste is prevented from rotting and deteriorating in all directions, and the nutritional structure and value of the food waste can be improved.

[0005] CN111802510A discloses an animal feces fermented organic feed and a preparation method thereof, the organic feed comprises the following components and the weight proportions of each component are: 50 parts of animal feces, 50 parts of dried matter, 0.1 parts of enzyme, the enzyme comprises 25 parts of potato scab bacteria, 10 parts of lactic acid bacteria of casei, 10 parts of acetic acid bacteria of wood, 15 parts of saccharomyces cerevisiae, 10 parts of Bacillus subtilis and 15 parts of Bifidobacterium. The organic feed contains a variety of high-quality lactic acid bacteria, can effectively degrade anti-nutritional factors in feed, improve feed nutritional value and digestibility, improve feed flavor and palatability, effectively prevent feed mildew and the production of aflatoxin, ensure the safety of fermented feed, avoid the loss of nutrition and weight caused by fermentation heat and gas production, and use animal feces fermented organic feed to breed black soldier flies, which can simultaneously achieve the purpose of animal feces resource utilization, reduction and harmlessness. The above invention patents do not simultaneously solve the problem of increasing the protein content of black soldier flies and reducing the odor in feeding. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a black soldier fly breeding feed using rotten fruits and vegetables as raw materials, thereby increasing the protein content of the cultured black soldier fly larvae, and effectively reducing the ammonia odor gas generated during the breeding process, thereby improving the breeding environment.

[0007] To achieve the above object, the present invention provides an environmentally friendly black soldier fly breeding feed and a preparation method thereof.

[0008] The environmentally friendly black soldier fly breeding feed comprises the following components: Rotten fruit and vegetable raw materials, brewer's yeast, corn flour, wheat bran, peanut bran, composite bacteria, tert-butylhydroquinone, deodorant, water.

[0009] Preferably, the following components are included in weight: 200-300 parts of rotten fruit and vegetable raw materials, 15-25 parts of brewer's yeast, 40-80 parts of corn flour, 20-50 parts of wheat bran, 20-50 parts of peanut bran, 10-20 parts of composite bacteria, 20-30 parts of tert-butylhydroquinone, 40-60 parts of deodorant, and 300-600 parts of water.

[0010] The preparation method of the environmentally friendly black soldier fly breeding feed is as follows, in parts by weight: 200-300 parts of rotten fruit and vegetable raw materials are chopped and mashed into a paste, 200-300 parts of water are added to dilute, 15-25 parts of brewer's yeast are added, and the mixture is stirred for 10-30 minutes to obtain a rotten fruit and vegetable material slurry; 40-80 parts of corn flour, 20-50 parts of wheat bran, and 20-50 parts of peanut bran are mixed, crushed and sieved, and added to the rotten fruit and vegetable material slurry, 100-300 parts of water are added, 10-20 parts of composite bacteria are added, and the mixture is allowed to stand and ferment at 28-38° C. for 4-5 days, cooled to room temperature, 20-30 parts of tert-butylhydroquinone are added, and the mixture is stirred for 0.5-1 hour, and 40-60 parts of deodorant are added to obtain the environmentally friendly black soldier fly breeding feed.

[0011] The preparation method of the deodorant is as follows: Add citrus flavonoids and sodium alginate into water and stir for 0.5-1 hour, add Moringa leaf protein into water, add sodium chloride, stir at room temperature for 10-30 minutes, and mix the above two to obtain the deodorant.

[0012] Preferably, the preparation method of the deodorant is as follows, in parts by weight: Add 0.2-0.6 parts of citrus flavonoids and 2-6 parts of sodium alginate to 40-50 parts of water and stir for 0.5-1 hour; add 1-2 parts of Moringa leaf protein to 15-20 parts of water, add 0.2-0.4 parts of sodium chloride, stir at room temperature for 10-30 minutes, and mix the above two to obtain the deodorant.

[0013] The rotten vegetable and fruit raw materials are one or more of rotten cabbage, rotten radish, rotten spinach, rotten celery, rotten potato, rotten eggplant, rotten peanuts, rotten tomato, rotten corn, rotten cucumber, rotten apple, rotten banana, rotten pineapple, rotten mango, rotten grape, rotten avocado, rotten grapefruit, rotten orange, rotten peach and rotten pear.

[0014] The particle size of the crushed and sieved particles is 150-200 meshes.

[0015] The composite bacterial species is one or more of thermophilic streptococcus, bacillus subtilis, lactobacillus rhamnosus, lactobacillus plantarum and bifidobacterium animalis.

[0016] The rotten fruit and vegetable raw materials in the environmentally friendly black soldier fly breeding feed of the present invention provide rich organic substances and nutrients as the basic components of the feed, including proteins, vitamins, minerals, etc. necessary for the growth and high protein content of black soldier flies, and the microorganisms naturally produced in the decay process and the brewer's yeast and composite strains added later jointly promote the fermentation process, further decompose the complex organic matter in the raw materials, increase the absorbable nutrients, and simultaneously produce beneficial metabolites to promote the digestion and absorption of black soldier flies. Among them, brewer's yeast not only accelerates the fermentation process of the rotten fruit and vegetable raw materials, but also because it contains rich protein and B vitamins, improves the nutritional value of the feed. The carbohydrates, proteins, fats and fibers provided by corn flour, wheat bran and peanut bran are important sources of energy and nutrition for the growth of black soldier fly larvae. The present invention is added to the composite strains including one or more of thermophilic streptococci, bacillus subtilis, rhamnosus lactobacillus, plant lactobacillus, and animal bifidobacterium, and the synergistic effect of the composite strains jointly promotes the conversion and absorption of nutrients in the feed, increases the generation of beneficial metabolites, and improves the nutritional value and digestion and absorption rate of the feed. As a preservative and antioxidant, tert-butylhydroquinone helps to protect the fat and protein in the feed from oxidation, maintain the nutritional value of the feed and extend the storage time, ensuring that the black soldier flies can ingest high-quality protein, and also helps to reduce the oxidation and rancidity of the feed during storage and use, maintaining its freshness and nutritional value. The addition of deodorant can reduce the ammonia odor gas generated during the feeding process. The combination of citrus flavonoids, moringa leaf protein, and sodium alginate can effectively reduce the ammonia odor gas generated during the feeding process by adsorbing, masking and inhibiting the generation of odorous gases, thereby improving the breeding environment and may also have a positive impact on the growth environment of black soldier flies.

[0017] Beneficial effects of the present invention: Compared with the prior art, the environmentally friendly black soldier fly breeding feed of the present invention can simultaneously increase the high protein content of the insect body and reduce the breeding odor. By using rotten vegetable and fruit raw materials, brewer's yeast, corn flour, wheat bran, peanut bran and composite bacteria, the conversion and absorption of nutrients in the feed are jointly promoted, and the production of beneficial metabolites is increased. The added deodorant composed of citrus flavonoids, moringa leaf protein and sodium alginate can effectively adsorb and inhibit the emission of malodorous gases such as ammonia, thereby improving the breeding environment. DETAILED DESCRIPTION

[0018] The parameters of the specific chemical substances used in the examples are from the following sources: Saccharomyces cerevisiae, CGMCC No.: 2.3854, was purchased from China General Microbiological Culture Collection Center.

[0019] Streptococcus thermophilus: Streptococcus thermophilus, CGMCC No.: 1.1855, purchased from China General Microbiological Culture Collection Center.

[0020] Lactobacillus rhamnosus, CGMCC No.: 1.12734, was purchased from China General Microbiological Culture Collection Center.

[0021] Bacillus subtilis: Bacillus subtilis, CGMCC strain number: 1.821, purchased from China General Microbiological Culture Collection Center.

[0022] Citrus flavonoids: The extraction source is citrus pulp extract of the genus Citrus, the manufacturer is Shaanxi Bolin Biotechnology Co., Ltd., the product number is BL-20240110005.

[0023] Moringa leaf protein: The manufacturer is Shaanxi Mufan Biotechnology Co., Ltd., and the product number is MF-00866.

[0024] Example 1 A method for preparing an environmentally friendly black soldier fly breeding feed is as follows: The rotten fruit and vegetable raw materials are chopped and mashed into a paste, including 40g of rotten spinach, 50g of rotten eggplant, 20g of rotten peanuts, 40g of rotten apples, 50g of rotten bananas, and 20g of rotten pears, and 200g of water is added to dilute it. 20g of brewer's yeast is continued to be added, and the mixture is stirred for 20 minutes to obtain a rotten fruit and vegetable material slurry; 60g of corn flour, 40g of wheat bran, and 40g of peanut bran are mixed, crushed and passed through a 160-mesh sieve, and added to the rotten fruit and vegetable material slurry, 200g of water is added, 4g of thermophilic Streptococcus, 5g of Lactobacillus rhamnosus, and 6g of Bacillus subtilis are added, and the mixture is fermented at 35°C for 4 days, cooled to room temperature, 25g of tert-butylhydroquinone is added, and stirred for 0.5 hour, and 55g of deodorant is added to obtain the environmentally friendly black soldier fly breeding feed.

[0025] The preparation method of the deodorant is as follows: 0.4 g of citrus flavonoids and 4 g of sodium alginate are added to 40 g of water and stirred for 0.5 hours. 1 g of Moringa leaf protein is added to 16 g of water, and 0.3 g of sodium chloride is added. The mixture is stirred at room temperature for 20 minutes. The deodorant is obtained by mixing the above two.

[0026] Example 2 A method for preparing an environmentally friendly black soldier fly breeding feed is as follows: The rotten fruit and vegetable raw materials are chopped and mashed into a paste, including 40g of rotten spinach, 50g of rotten eggplant, 20g of rotten peanuts, 40g of rotten apples, 50g of rotten bananas, and 20g of rotten pears, and 200g of water is added to dilute it. 20g of brewer's yeast is continued to be added, and the mixture is stirred for 20 minutes to obtain a rotten fruit and vegetable material slurry; 60g of corn flour, 40g of wheat bran, and 40g of peanut bran are mixed, crushed and passed through a 160-mesh sieve, and added to the rotten fruit and vegetable material slurry, 200g of water is added, 4g of thermophilic Streptococcus, 5g of Lactobacillus rhamnosus, and 6g of Bacillus subtilis are added, and the mixture is fermented at 35°C for 4 days, cooled to room temperature, 25g of tert-butylhydroquinone is added, and stirred for 0.5 hour, and 55g of deodorant is added to obtain the environmentally friendly black soldier fly breeding feed.

[0027] The preparation method of the deodorant is as follows: The deodorant is prepared by adding 0.4 g of citrus flavonoids and 4 g of sodium alginate into 40 g of water and stirring for 0.5 hour.

[0028] Example 3 A method for preparing an environmentally friendly black soldier fly breeding feed is as follows: The rotten fruit and vegetable raw materials are chopped and mashed into a paste, including 40g of rotten spinach, 50g of rotten eggplant, 20g of rotten peanuts, 40g of rotten apples, 50g of rotten bananas, and 20g of rotten pears, and 200g of water is added to dilute it. 20g of brewer's yeast is continued to be added, and the mixture is stirred for 20 minutes to obtain a rotten fruit and vegetable material slurry; 60g of corn flour, 40g of wheat bran, and 40g of peanut bran are mixed, crushed and passed through a 160-mesh sieve, and added to the rotten fruit and vegetable material slurry, 200g of water is added, 4g of thermophilic Streptococcus, 5g of Lactobacillus rhamnosus, and 6g of Bacillus subtilis are added, and the mixture is fermented at 35°C for 4 days, cooled to room temperature, 25g of tert-butylhydroquinone is added, and stirred for 0.5 hour, and 55g of deodorant is added to obtain the environmentally friendly black soldier fly breeding feed.

[0029] The preparation method of the deodorant is as follows: 4 g of sodium alginate was added to 40 g of water and stirred for 0.5 hours. 1 g of Moringa leaf protein was added to 16 g of water, and 0.3 g of sodium chloride was added. The mixture was stirred at room temperature for 20 minutes. The deodorant was obtained by mixing the above two.

[0030] Example 4 A method for preparing an environmentally friendly black soldier fly breeding feed is as follows: The rotten fruit and vegetable raw materials are chopped and mashed into a paste, including 40g of rotten spinach, 50g of rotten eggplant, 20g of rotten peanuts, 40g of rotten apples, 50g of rotten bananas, and 20g of rotten pears, and 200g of water is added to dilute it. 20g of brewer's yeast is continued to be added, and the mixture is stirred for 20 minutes to obtain a rotten fruit and vegetable material slurry; 60g of corn flour, 40g of wheat bran, and 40g of peanut bran are mixed, crushed and passed through a 160-mesh sieve, and added to the rotten fruit and vegetable material slurry, 200g of water is added, 4g of thermophilic Streptococcus, 5g of Lactobacillus rhamnosus, and 6g of Bacillus subtilis are added, and the mixture is fermented at 35°C for 4 days, cooled to room temperature, 25g of tert-butylhydroquinone is added, and stirred for 0.5 hour, 0.4g of citrus flavonoids and 1g of Moringa leaf protein are added to obtain the environmentally friendly black soldier fly breeding feed.

[0031] Example 5 A method for preparing an environmentally friendly black soldier fly breeding feed is as follows: The rotten fruit and vegetable raw materials are chopped and mashed into a paste, including 40g of rotten spinach, 50g of rotten eggplant, 20g of rotten peanuts, 40g of rotten apples, 50g of rotten bananas, and 20g of rotten pears, and 200g of water is added to dilute, and 20g of brewer's yeast is continued to be added, and the mixture is stirred for 20 minutes to obtain a rotten fruit and vegetable material slurry; 60g of corn flour, 40g of wheat bran, and 40g of peanut bran are mixed, crushed and passed through a 160-mesh sieve, and added to the rotten fruit and vegetable material slurry, 200g of water is added, 4g of thermophilic Streptococcus, 5g of Lactobacillus rhamnosus, and 6g of Bacillus subtilis are added, and the mixture is fermented at 35°C for 4 days, cooled to room temperature, 25g of tert-butylhydroquinone is added, and stirred for 0.5 hour to obtain the environmentally friendly black soldier fly breeding feed.

[0032] Test Example 1 Test Example 1 The environmentally friendly black soldier fly breeding feed obtained by the preparation method of Example 1 and Example 5 was used to feed black soldier flies, and the black soldier fly breeding feed of the chicken manure group and the wheat bran group was added as a comparative test, and each group was repeated 3 times. 100g of environmentally friendly black soldier fly breeding feed was respectively taken and loaded into a black soldier fly breeding box with a size of 30×20×5cm, and 5g of black soldier fly larvae cultured for five days under the conditions of 28°C and 65% humidity were added to continue to be boxed for ten days, and 100g of environmentally friendly black soldier fly breeding feed was added every day. On the tenth day, the crude protein content of the black soldier fly larvae cultured with feeds in different embodiments was tested. The higher the content, the higher the protein content of the black soldier fly larvae as animal feed. The test was based on the full amount method of the national standard GB / T 6432-2018 "Determination of crude protein in feed by Kjeldahl nitrogen determination method", and the summary is shown in Table 1.

[0033]

[0034] The experimental results show that the environmentally friendly black soldier fly breeding feed of the embodiment of the present invention uses rotten fruits and vegetables as the main raw material source. Through the selection and matching of raw materials, as well as the fermentation of composite bacteria, it is more helpful to accelerate the growth and protein synthesis of black soldier fly larvae compared with the chicken manure group and the wheat bran group. The synergistic effect of brewer's yeast and composite bacteria added in the embodiment of the present invention jointly promotes the conversion and absorption of nutrients during the fermentation process, increases the protein content in the feed and improves the amino acid composition. The joint action of microorganisms can produce a variety of enzymes during the fermentation process to help decompose the macromolecular nutrients in the raw materials, making them easier for the black soldier fly larvae to digest and absorb. The metabolites such as organic acids, amino acids and vitamins produced during the fermentation process can also provide additional nutrition for the black soldier fly larvae, promote their growth and increase protein content, and ultimately increase the protein content of the insect body itself. The corn flour added mainly provides carbohydrates, which is an important source of energy for black soldier fly larvae. Wheat bran and peanut bran are rich in cellulose and protein. The cellulose in wheat bran helps to increase the air permeability of the feed and promote the digestion of the larvae, while the peanut bran provides high-quality vegetable protein. These proteins and amino acids are key nutrients for the growth and development of larvae. The added tert-butylhydroquinone, as a preservative and antioxidant, helps to protect the fat and protein in the feed from being destroyed, keeps the nutrition of the feed from being lost, and ensures that the black soldier fly larvae can take in high-quality protein. In the black soldier fly breeding process, rotten fruit and vegetable raw materials may release these odor compounds during fermentation and decomposition, and the selection of deodorants not only needs to effectively reduce the odor in the breeding environment, but also cannot have a negative impact on the growth of black soldier flies and the protein content of the insect body. It is usually by neutralizing or decomposing the organic components in the rotten fruit to produce ammonia and other odorous compounds during the decomposition process. Compared with Example 1, Example 5 adds a deodorant for the purpose of reducing environmental odor and not reducing the protein content of the cultivated black soldier flies. In summary, the environmentally friendly black soldier fly breeding feed of the embodiment of the present invention helps to increase the protein content of black soldier fly larvae by optimizing raw material selection, fermentation process and the use of auxiliary agents, thereby improving its nutritional value and application potential as a feed raw material.

[0035] Test Example 2 60g of the environmentally friendly black soldier fly breeding feed obtained by the preparation method of Examples 1-5 was taken and diluted in water at a ratio of 1:100, and then divided into open beakers. The beakers were placed in transparent and sealed boxes, and the inhibition rate of NH3 release in the box air at 30, 60, and 90 minutes was calculated. The inhibition rate of NH3 release at this time was: {(NH3 release at 0 minutes - NH3 release at this time) / NH3 release at 0 minutes} × 100%. The higher the inhibition rate, the better the odor suppression effect, which can reduce the release of odor. Three parallel tests were set for each group of examples, and the test data were averaged, which is summarized as shown in Table 2.

[0036]

[0037] In the process of preparing environmentally friendly black soldier fly breeding feed, the main difference between Examples 1-5 of the present invention lies in the composition of the deodorant. In Example 1, citrus flavonoids, sodium alginate and moringa leaf protein are used as components of the deodorant. Citrus flavonoids, as a natural flavonoid compound, can not only neutralize free radicals due to its antioxidant properties and reduce the malodorous gases that may be produced during the oxidation process, but also its antibacterial properties help inhibit the activity of microorganisms, which are often the source of malodorous gases. By inhibiting the growth and metabolism of microorganisms, the generation of ammonia and other volatile organic compounds is reduced. The addition of moringa leaf protein utilizes its unique amino acid composition and molecular structure to adsorb and mask malodorous gas molecules. The amino acid side chains in the protein molecules may form hydrogen bonds or other types of chemical bonds with malodorous gas molecules, thereby effectively adsorbing these gas molecules and reducing their concentration in the air. Sodium alginate has good viscosity, and its viscosity is used to wrap and protect citrus flavonoids and moringa leaf protein. When in contact with malodorous gas molecules, they can be adsorbed on the surface or fixed inside, providing a physical barrier for malodorous gas molecules and further reducing their release. The addition of sodium chloride helps to adjust the ionic strength of the solution. The right amount of salt can enhance the adsorption capacity of protein, and at the same time play a positive role in improving the viscosity of sodium alginate, thereby improving the deodorizing effect. While Examples 2-4 control variables to omit moringa leaf protein, citrus flavonoids and sodium alginate, indicating that the synergistic effect of the deodorant prepared by moringa leaf protein, citrus flavonoids and sodium alginate in Example 1 will affect the deodorizing effect. The deodorizing effects of Examples 2-4 are all lower than those of Example 1. No deodorant is added during the preparation of Example 5, and it does not have a deodorizing and odor-suppressing effect.

[0038] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An environmentally friendly black soldier fly breeding feed, characterized in that: Includes the following components: Rotten fruit and vegetable raw materials, brewer's yeast, corn flour, wheat bran, peanut bran, composite bacteria, tert-butylhydroquinone, deodorant, water.

2. The environmentally friendly black soldier fly breeding feed according to claim 1, characterized in that: It comprises the following components in parts by weight: 200-300 parts of rotten fruit and vegetable raw materials, 15-25 parts of brewer's yeast, 40-80 parts of corn flour, 20-50 parts of wheat bran, 20-50 parts of peanut bran, 10-20 parts of composite bacteria, 20-30 parts of tert-butylhydroquinone, 40-60 parts of deodorant, and 300-600 parts of water.

3. A method for preparing the environmentally friendly black soldier fly breeding feed as claimed in claims 1-2, characterized in that: The preparation method is as follows, in parts by weight: 200-300 parts of rotten fruit and vegetable raw materials are chopped and mashed into a paste, 200-300 parts of water are added to dilute, 15-25 parts of brewer's yeast are continuously added, and the mixture is stirred for 10-30 minutes to obtain a rotten fruit and vegetable material slurry; 40-80 parts of corn flour, 20-50 parts of wheat bran, and 20-50 parts of peanut bran are mixed, crushed and sieved, and added to the rotten fruit and vegetable material slurry, 100-300 parts of water are added, 10-20 parts of composite bacteria are added, and the mixture is allowed to stand and ferment at 28-38° C. for 4-5 days, cooled to room temperature, 20-30 parts of tert-butylhydroquinone are added, and the mixture is stirred for 0.5-1 hour, and 40-60 parts of deodorant are added to obtain the environmentally friendly black soldier fly breeding feed.

4. The method for preparing the environmentally friendly black soldier fly breeding feed according to claim 3, characterized in that: The rotten vegetable and fruit raw materials are one or more of rotten cabbage, rotten radish, rotten spinach, rotten celery, rotten potato, rotten eggplant, rotten peanuts, rotten tomato, rotten corn, rotten cucumber, rotten apple, rotten banana, rotten pineapple, rotten mango, rotten grape, rotten avocado, rotten grapefruit, rotten orange, rotten peach and rotten pear.

5. The method for preparing the environmentally friendly black soldier fly breeding feed according to claim 3, characterized in that: The particle size of the crushed and sieved particles is 150-200 meshes.

6. The method for preparing the environmentally friendly black soldier fly breeding feed according to claim 3, characterized in that: The composite bacterial species is one or more of thermophilic streptococcus, bacillus subtilis, lactobacillus rhamnosus, lactobacillus plantarum and bifidobacterium animalis.

7. The method for preparing the environmentally friendly black soldier fly breeding feed according to claim 3, characterized in that: The preparation method of the deodorant is as follows: Add citrus flavonoids and sodium alginate into water and stir for 0.5-1 hour, add Moringa leaf protein into water, add sodium chloride, stir at room temperature for 10-30 minutes, and mix the above two to obtain the deodorant.

8. The method for preparing the environmentally friendly black soldier fly breeding feed according to claim 7, characterized in that: The preparation method of the deodorant is as follows, in parts by weight: Add 0.2-0.6 parts of citrus flavonoids and 2-6 parts of sodium alginate to 40-50 parts of water and stir for 0.5-1 hour; add 1-2 parts of Moringa leaf protein to 15-20 parts of water, add 0.2-0.4 parts of sodium chloride, stir at room temperature for 10-30 minutes, and mix the above two to obtain the deodorant.

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