CN114145267A - Three-stage type breeding method for hermetia illucens - Google Patents
Three-stage type breeding method for hermetia illucens Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The invention discloses a three-stage black soldier fly breeding method, and belongs to the field of environment-friendly/kitchen waste treatment. The method takes urban kitchen waste with high water content and low nutrient density at the present stage as a raw material, establishes the relationship between the conversion rate of the black soldier fly prepupa to the raw material and the size of the prepupa single, adopts three-stage culture and secondary screening after accurately controlling and allocating the water content, so as to control the total amount of dry substances in the material and the mass distribution relationship of the dry substances in the three stages, and determines an optimal black soldier fly breeding scheme. The method solves the problem that the kitchen waste with high water content and low nutrient density is difficult to be applied to cultivating the hermetia illucens in the prior art, and brings an automatic and industrialized guidance scheme for complete resource utilization of the urban kitchen waste.
Description
Technical Field
The invention relates to the technical field of environmental protection/kitchen waste treatment, in particular to a three-stage black soldier fly breeding method.
Background
Hermetia illucens (Hermetia illucens.l) is a saprophytic insect, and larvae of the Hermetia illucens eat organic garbage for ecological transformation, so that the organic garbage can be transformed into insect protein and insect manure organic fertilizer. The most widely applied hermetia illucens is that in urban kitchen waste treatment, larvae are mainly cultured by commodity worms and breeding insects, in a commodity worm culture link, the water content of the kitchen waste is adjusted to 70-75% to meet the culture requirement generally, but in breeding insects, the water content is adjusted by kitchen raw materials with high water content and insufficient nutrition density to culture, the requirement is difficult to achieve, and the breeding insects mainly show that prepupa is too small, the prepupa mature period is inconsistent, and the larvae are caked in materials. Even if the kitchen solid with higher nutrition density is obtained by extrusion and filtration for culture, a large amount of waste water is easy to generate, and caking waste is generated in the culture process, so that prepupa cannot be separated smoothly, or due to reasons such as stage nutrition distribution errors and the like, the enough size cannot be cultured, so that the egg laying amount is insufficient, the requirement on manual operation adjustment is high, and the technical automation and industrial application are influenced.
Through retrieval, application No. 2021106467614 discloses a method for breeding black soldier fly larvae by three-phase separation solid-phase materials in a kitchen project, which comprises the following steps: s1: preparing a feed for breeding the hermetia illucens larvae, wherein the feed is a compound mixture of a three-phase centrifugal solid-phase material, auxiliary materials and lactic acid bacteria; s2: hatching eggs, namely placing the hermetia illucens eggs in a brooding box added with brooding feed for hatching; s3: breeding the black soldier fly larvae, adding breeding feed into a breeding box or a breeding pond, and putting the hatched larvae; s4: separating the worm material, and separating the larva from the worm sand and the residual material after the larva grows to the designated length. This application utilizes the three-phase separation solid phase material in the kitchen garbage project as the base material, breeds heisui river horsefly larva, as the effective replenishment of original processing technology, through heisui river horsefly larva's bioprotein conversion, can effectual utilization kitchen garbage, the resourceization is more thorough, obtains the heisui river horsefly larva that worth is higher, use more extensively, and then obtains the biggest economic benefits.
The application with the application number of 2020105955438 discloses a breeding method of hermetia illucens, wherein eggs in the gastrula stage are selected for harvesting and hatching, so that tidiness and activity of larvae which are hatched initially are ensured, and the hatching rate of the eggs is over 80%; meanwhile, 5-day-old larva rotary disc brooding with the specification of more than 20mg and regular and active growth and 4-year-old larva with the specification of more than 130mg are screened for pre-pupa cultivation, the specification of the obtained larva is ensured to be more than 200mg, and the specification of pupa is more than 160 mg; the breeding process is standardized, so that the hermetia illucens can be stably bred in each batch.
In summary, a great deal of breeding techniques for hermetia illucens are disclosed and optimized from different directions, but many problems to be solved still remain in practice.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to solve the problem that the hermetia illucens breeding is difficult to apply to kitchen waste with high water content and low nutrient density in the prior art, and provides a hermetia illucens three-stage breeding method, which is a breeding method for breeding hermetia illucens in urban kitchen waste with high water content and low nutrient density, and provides a breeding method which can be operated in a programmed manner, has optimal prepupa yield and individual size, does not generate wastes, so that the urban kitchen waste is completely recycled, and an automatic and industrialized guidance scheme is brought.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a three-stage black soldier fly breeding method which comprises the following steps:
s1, preparing kitchen slurry: carrying out separation pulping treatment on the kitchen waste and filtering to obtain kitchen slurry;
s2, blending the kitchen slurry with auxiliary materials: crushing crop straws, mixing with the kitchen slurry, stirring and blending to obtain a kitchen mixed raw material;
s3, culturing the hermetia illucens: hatching the newly produced hermetia illucens eggs, then carrying out saturated feeding, culturing third-instar larvae, and putting the larvae into the mixed kitchen raw materials for culturing;
s4, culturing the hermetia illucens: screening the cultured mixture of the first section of hermetia illucens and the insect manure by a screening machine, and then putting the screened first section of hermetia illucens into the kitchen mixed raw material for continuous culture;
s5, culturing the hermetia illucens: screening the cultured mixture of the two-stage hermetia illucens and the insect manure by a screening machine, and then putting the screened two-stage hermetia illucens into the kitchen mixed raw material for continuous culture;
s6, obtaining the black soldier fly breeding pupae: screening the cultured mixture of the three-segment hermetia illucens and the insect manure by a screening machine to obtain qualified prepupa illucens, and entering a pupation stage for operation.
Furthermore, the water content of the kitchen slurry prepared in the S1 is 79-90%.
Further, the specific process of S2 is: crushing dry crop straws in a straw crusher, wherein the aperture of a sieve sheet is set to be 1.5-2.5mm, so as to obtain straw powder, and the water content is 5-11%; and (4) blending the straw powder and the kitchen slurry to a required water content range by using a mixing stirrer to obtain the kitchen mixed raw material.
Further, the specific process of S3 is: hatching the newly produced hermetia illucens eggs at 30-32 ℃, then carrying out saturated feeding for 5-7 days, putting the bred third-instar larvae into the blended kitchen mixed raw material with the water content of 74-75%, and culturing for 6-8 days in the environment of 23-29 ℃.
Furthermore, the amount of the kitchen raw material cultured in the S3 section is 5000-5400 parts of kitchen dry matter per part of worm eggs based on the dry matter in the initial kitchen.
Further, the specific process of S4 is: and screening the mixture of the first section of cultured hermetia illucens and the insect feces by a 7-8-mesh screening machine, putting the screened first section of hermetia illucens into the blended kitchen mixed raw material with the water content of 74-75%, and culturing for 4-6 days at the temperature of 23-27 ℃.
Furthermore, the amount of the kitchen raw material for the two-stage culture in S4 is 1700-1800 parts of kitchen dry matter per part of worm eggs, calculated as the dry matter in the initial kitchen.
Further, the specific process of S5 is: and (3) screening the mixture of the two-stage cultured hermetia illucens and the insect manure by a 7-8-mesh screen, putting the screened two-stage hermetia illucens into the blended kitchen mixed raw material with the water content of 71-73%, and culturing for 3-5 days at the temperature of 21-27 ℃.
Furthermore, the amount of the kitchen raw material for three-stage culture in S5 is 650-750 parts of kitchen dry matter per part of worm eggs based on the dry matter in the initial kitchen.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) the conventional hermetia illucens breeding only adopts high-nutrition solid raw materials such as kitchen residue, bean curd residue or grain after water filtration and extrusion, and for the raw materials with high water content and insufficient nutrition density, the conventional hermetia illucens breeding only can be used for culturing commercial insects after water content is adjusted, and qualified breeding insects are difficult to culture; by adopting the three-stage type breeding method, the urban kitchen waste is taken as a representative, the qualified breeding insects can be cultured by the high-moisture-content (79-90%) liquid and slurry materials prepared from the straw powder, and the complete resource utilization of the urban kitchen waste is realized.
(2) According to the three-stage black soldier fly breeding method, the programmed breeding mode of the black soldier fly is determined by dividing into three stages and dry matter parts, and caking and waste generation in the breeding process of the black soldier fly are avoided; the conventional breeding mode of the breeding insects needs a great amount of manual operation steps of excessive feeding, observation and adjustment, irrigation, climbing out waiting and the like, and can generate unavailable waste water or caking waste materials.
(3) The three-stage black soldier fly breeding method provided by the invention has the advantages that nutrition consumption absorption rules of different stages in the growth process of black soldier fly larvae are arranged, and the black soldier fly prepupa individuals fed by low-nutrition-density foodstuff can reach the optimal size.
Drawings
FIG. 1 is a schematic flow chart of the breeding method of the present invention.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be further described with reference to the following examples.
Example 1
The black soldier fly three-stage type breeding method comprises the following steps:
s1, preparing kitchen slurry: carrying out separation pulping treatment on the kitchen waste and filtering to obtain kitchen slurry;
specifically, the bag-broken urban kitchen waste is sent into a kitchen breaking and separating machine (rotary blade type 1) provided by Toshiba Industrial machinery Co., Ltd, large impurities are separated, slurry is led into a ZJ6010 carbon steel pulping machine provided by Szechwan Tiansen farming and grazing equipment manufacturing Limited company, pulping is carried out, and small impurities are filtered by a 2mm mesh gate, so that kitchen slurry is obtained, wherein the water content of the slurry is basically between 79 and 90 percent;
s2, blending the kitchen slurry with auxiliary materials: crushing crop straws, mixing with the kitchen slurry, stirring and blending to obtain a kitchen mixed raw material;
specifically, dry crop straws (without limitation, corn straws, wheat straws and the like) are put into a straw pulverizer to be pulverized, the aperture of a sieve sheet is set to be 1.5-2.5mm, and straw powder is obtained, wherein the moisture content is basically 5-11%; blending the straw powder and the kitchen slurry to a required water content range by using a mixing stirrer to obtain a kitchen mixed raw material;
s3, culturing the hermetia illucens: hatching the newly produced hermetia illucens eggs, then carrying out saturated feeding, culturing third-instar larvae, and putting the larvae into the mixed kitchen raw materials for culturing;
specifically, 1 part by mass of hermetia illucens eggs accurately weighed just after production are hatched at 30 ℃ and fed in a saturated manner for 5 days to culture third-instar larvae, and the third-instar larvae are put into the blended kitchen mixed raw material with the water content of 74-75% and cultured for 6 days in the environment of the temperature of 23 ℃. The amount of the kitchen raw material for one section of culture is calculated by the dry matter in the initial kitchen, and each part of worm eggs corresponds to 5000 parts of kitchen dry matter.
S4, culturing the hermetia illucens: screening the cultured mixture of the first section of hermetia illucens and the insect manure by a screening machine, and then putting the screened first section of hermetia illucens into the kitchen mixed raw material for continuous culture;
specifically, the mixture of the first section of cultured hermetia illucens and the insect feces is screened by a 7-8-mesh screen, and the screened first section of hermetia illucens is put into the blended kitchen mixed raw material with the water content of 74-75% and cultured for 4 days in the environment of 23 ℃. The amount of the kitchen raw material for two-stage culture is calculated by the dry matter in the initial kitchen, and each part of worm eggs corresponds to 1700 parts of kitchen dry matter.
S5, culturing the hermetia illucens: screening the cultured mixture of the two-stage hermetia illucens and the insect manure by a screening machine, and then putting the screened two-stage hermetia illucens into the kitchen mixed raw material for continuous culture;
specifically, the mixture of the two-stage cultured hermetia illucens and the insect manure is screened by a 7-8-mesh screen separator, and the screened two-stage hermetia illucens are put into the blended kitchen mixed raw materials with the water content of 71-73% and cultured for 3 days in the environment of the temperature of 21 ℃. The amount of the kitchen raw materials for three-stage culture is calculated by the dry matter in the initial kitchen, and each part of worm eggs corresponds to 650 parts of kitchen dry matter.
S6, obtaining the black soldier fly breeding pupae: and screening the cultured mixture of the three-segment hermetia illucens and the insect feces by a 7-8-mesh screen separator to obtain clean and tidy hermetia illucens prepupa with satisfactory individual size, and entering a pupation stage for operation.
The three-stage cultivation method of the embodiment solves the problem that qualified hermetia illucens are difficult to cultivate by using kitchen waste with high water content and low nutrient density: if the ratio of the insect bodies in unit volume is gradually reduced along with the advance of time, the loosening capacity of the insect manure and materials is reduced in the later period; at the end of continuous feeding, because of the increase of the distance in the material and the uneven water content of the material, food cannot be taken, the yield of the prepupa is low, the period is inconsistent, and the material is caked; the final individuals are smaller due to the uneven distribution of nutrients in the staged diet.
In the embodiment, the most common urban kitchen waste with high water content and low nutrient density at the present stage is used as a raw material, the relation between the conversion rate of the black soldier fly prepupa to the raw material and the size of the prepupa single is established, three-stage culture and secondary screening are performed after the water content is accurately controlled and allocated, so that the total amount of dry substances in the material and the mass distribution relation of the dry substances in the three stages are controlled, and the optimal black soldier fly breeding scheme is determined. Through continuous technical research and adjustment, the initial kitchen waste mass range calculated by the total dry matter amount in a breeding insect culture link corresponding to each 1 part of hermetia illucens eggs, and the initial kitchen waste dry matter part range and culture environment condition of each section in the culture process divided into three sections are finally determined.
The three-section type cultivation method enables kitchen waste which is difficult to cultivate the hermetia illucens with high water content and low nutrient density to be stably, efficiently and orderly cultivated to prepare the hermetia illucens prepupa; various problems in the traditional process, such as excessive feeding of food, waiting for pre-pupa to climb out of a slope, water filling and soaking, caking and incapability of treating waste materials, are avoided; so that no caking and waste materials are generated in the whole process. The method realizes full automation and biological recycling for large-scale treatment of the kitchen waste with high water content and low nutrient density, and achieves the aim of no waste and pollution in each link of the industry.
Example 2
The three-stage breeding method of the present embodiment is basically the same as embodiment 1, except that,
s3, culturing the hermetia illucens: hatching 1 part by mass of hermetia illucens eggs accurately weighed just after production at 32 ℃, then carrying out 7-day saturated feeding, putting the bred three-instar larvae into the blended kitchen mixed raw material with the water content of 74-75%, and culturing for 8 days in a 29-DEG C temperature environment. The amount of the kitchen raw material for one section of culture is calculated by the dry matter in the initial kitchen, and each part of worm egg corresponds to 5400 parts of kitchen dry matter.
S4, culturing the hermetia illucens: and (3) putting the screened hermetia illucens into the blended mixed kitchen raw material with the water content of 74-75%, and culturing for 6 days in an environment with the temperature of 27 ℃. The amount of the kitchen raw material for the second-stage culture is 1800 parts of kitchen dry matter by dry matter in the initial kitchen.
S5, culturing the hermetia illucens: and putting the screened hermetia illucens second-stage insects into the blended mixed kitchen raw materials with the water content of 71-73%, and culturing for 5 days in an environment with the temperature of 27 ℃. And (3) the amount of the kitchen raw materials for three-stage culture is calculated by the dry matter in the initial kitchen, and each part of worm eggs corresponds to 750 parts of kitchen dry matter.
Example 3
The three-stage breeding method of the present embodiment is basically the same as embodiment 1, except that,
s3, culturing the hermetia illucens: hatching 1 part by mass of hermetia illucens eggs accurately weighed just after production at 31 ℃, then carrying out saturated feeding for 6 days, putting the bred larvae of three-instar ages into the blended kitchen mixed raw material with the water content of 74-75%, and culturing for 7 days in the environment of 25 ℃. The amount of the kitchen raw material for one section of culture is 5200 parts of kitchen dry matter per part of worm eggs based on the dry matter in the initial kitchen.
S4, culturing the hermetia illucens: and (3) putting the screened hermetia illucens into the blended mixed kitchen raw material with the water content of 74-75%, and culturing for 5 days in an environment at the temperature of 25 ℃. The amount of the kitchen raw material for the second-stage culture is 1750 parts of kitchen dry matter per part of worm eggs based on the dry matter in the initial kitchen.
S5, culturing the hermetia illucens: and putting the screened hermetia illucens second-stage insects into the mixed kitchen raw material with the water content of 71-73% after blending, and culturing for 4 days in an environment with the temperature of 25 ℃. The amount of the kitchen raw materials for three-stage culture is calculated by the dry matter in the initial kitchen, and each part of worm eggs corresponds to 700 parts of kitchen dry matter.
Example 4
The three-stage breeding method of the present embodiment is basically the same as in embodiment 1, and more specifically,
the following table 1 shows a slot type production representative group data table of the black soldier fly three-stage cultivation method establishment process:
table 1 shows that, when the slot type production is adopted in the workshop, the production data of a large amount, or a typical representative group, or a group in which the periodic kitchen usage is close to the extreme value at which agglomeration occurs, can represent the values of the upper and lower limits of the periodic kitchen usage.
Wherein for groups 1, 2: because of the way of cultivating the black soldier fly prepupa in one section in the whole process, the material waste and the caking are serious in the early test, and the yield of the prepupa produced in unit volume is too low, so that the number of the prepupa produced in two sections is increased. In group 1, a section of kitchen dry matter 5160 has no caking, and after once screening, the kitchen dry matter is continuously fed in 2 sections until larvae are basically and completely blackened, the final numerical value is not ideal, the number of caking is large, the number of feed worms is high, and the caking phenomenon appears in 2 sections; group 2 is intended to draw a portion of the two stages of clumping to one stage, but by the time the larvae are substantially completely dark, partial clumping occurs in both stages 1, 2. It can be seen that the two-stage cultivation can not meet the production requirements.
For groups 3, 4: three sections are added, the feeding amount of the first and second sections of larvae is set to be close to a representative group for distributing the dry matter amount, so that the prepupa quantity is obviously reduced, the individual is obviously smaller, the second section of larvae is bound to generate lumps, and the third section of larvae is also bound to 876 dry matter parts, so that the production requirement cannot be met.
For groups 5, 6: in order to eliminate the second-stage caking, the second-stage material is divided into a first-stage caking and a third-stage caking, and the representative group for eliminating the second-stage caking does not generate caking when the first-stage dry matter is 4875-5122 parts, but causes the increase of the third-stage caking, so that the dry matter part of the second stage needs to be adjusted to the first stage instead of the third stage as much as possible.
For groups 7, 8, 9: controlling the three-stage part to be about 660, wherein the three-stage effect is good, no caking exists, and a small amount of caking exists when the three-stage part is adjusted to 812 parts; when the first-stage part and the second-stage part are distributed, the first-stage 5376 parts and the second-stage part 1752 parts can ensure that the first-stage part and the second-stage part have no agglomeration, and the upper limit of the first-stage part is determined to be 5400 parts by the invention.
For groups 10, 11, 12: in order to further fine-tune the representative group for testing the upper limit of the second section and the third section, the upper limit of the non-caking is slightly reduced, and the value of the invention is 1800 parts of the second section and 750 parts of the third section.
The invention finally determines the upper limit of the optimal value range of the first section, the second section and the third section to be 5400 parts, 1800 parts and 750 parts, the material-to-pest ratio and the individual size factors of prepupa, and the lower limit of the value range to be 5000 parts, 1700 parts and 650 parts.
The following table 2 is an in-box rack type production data summary table verified by the black soldier fly three-stage breeding scheme:
table 2 is a data record of the box-type equipment using the culture rack + multi-box verification, with two boxes per layer stacked for 4 layers, arranged in sequence from top to bottom. According to the specification of the used box and the upper limit value of the thickness of the food required by the growth of the hermetia illucens larvae, the using amount of each box of worm eggs is determined to be 1.3g, the parts of the first-stage feeding materials are added step by step from the groups 1-8, the parts of the second-stage dry matter and the third-stage dry matter are kept within a limited range, and in the three-stage cultivation scheme, whether the range of the parts of the selected kitchen dry matter in each stage can be adopted on a box frame in the box body or not is verified.
After the culture period is finished, the results show that all groups have no caking, the survival rate is high, the single weight of the prepupa is ideal, the ratio of the feed to the worms is low and stable, the data in the lower layer box is slightly better than that in the upper layer box, the time from the feed to sieving is 1 day longer, the theoretical conjecture is caused by slightly more dry matter parts of one section of feed and slightly lower environmental temperature of the lower layer in the box body, and the final single size of the prepupa of the lowest layers (7 and 8 groups) is more than 0.19 g.
As can be seen from the above records, the parameters of the three-stage breeding method can also achieve good effects in the production of hermetia illucens by using the box and the box frame as production equipment.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (9)
1. A three-stage breeding method for hermetia illucens is characterized by comprising the following steps: the method comprises the following steps:
s1, preparing kitchen slurry: carrying out separation pulping treatment on the kitchen waste and filtering to obtain kitchen slurry;
s2, blending the kitchen slurry with auxiliary materials: crushing crop straws, mixing with the kitchen slurry, stirring and blending to obtain a kitchen mixed raw material;
s3, culturing the hermetia illucens: hatching the newly produced hermetia illucens eggs, then carrying out saturated feeding, culturing third-instar larvae, and putting the larvae into the mixed kitchen raw materials for culturing;
s4, culturing the hermetia illucens: screening the cultured mixture of the first section of hermetia illucens and the insect manure by a screening machine, and then putting the screened first section of hermetia illucens into the kitchen mixed raw material for continuous culture;
s5, culturing the hermetia illucens: screening the cultured mixture of the two-stage hermetia illucens and the insect manure by a screening machine, and then putting the screened two-stage hermetia illucens into the kitchen mixed raw material for continuous culture;
s6, obtaining the black soldier fly breeding pupae: screening the cultured mixture of the three-segment hermetia illucens and the insect manure by a screening machine to obtain qualified prepupa illucens, and entering a pupation stage for operation.
2. The method for breeding the hermetia illucens three-stage type larvae, according to claim 1, is characterized in that: the water content of the kitchen slurry prepared in the S1 is 79-90%.
3. The method for breeding the hermetia illucens three-stage type larvae, according to claim 1, is characterized in that: the specific process of S2 is as follows: crushing dry crop straws in a straw crusher, wherein the aperture of a sieve sheet is set to be 1.5-2.5mm, so as to obtain straw powder, and the water content is 5-11%; and (4) blending the straw powder and the kitchen slurry to a required water content range by using a mixing stirrer to obtain the kitchen mixed raw material.
4. The method for breeding the hermetia illucens three-stage type larvae, according to claim 1, is characterized in that: the specific process of S3 is as follows: hatching the newly produced hermetia illucens eggs at 30-32 ℃, then carrying out saturated feeding for 5-7 days, putting the bred third-instar larvae into the blended kitchen mixed raw material with the water content of 74-75%, and culturing for 6-8 days in the environment of 23-29 ℃.
5. The method for breeding the hermetia illucens three-stage type larvae, according to claim 4, is characterized in that: the amount of the kitchen raw material cultured in the first stage of S3 is that each part of worm egg corresponds to 5000-5400 parts of kitchen dry matter calculated by the initial dry matter in the kitchen.
6. The method for breeding the hermetia illucens three-stage type larvae, according to claim 1, is characterized in that: the specific process of S4 is as follows: and screening the mixture of the first section of cultured hermetia illucens and the insect feces by a 7-8-mesh screening machine, putting the screened first section of hermetia illucens into the blended kitchen mixed raw material with the water content of 74-75%, and culturing for 4-6 days at the temperature of 23-27 ℃.
7. The method for breeding the hermetia illucens three-stage type larvae, according to claim 6, is characterized in that: the amount of the kitchen raw material for two-stage culture in S4 is 1700-1800 parts of kitchen dry matter for each part of worm eggs, calculated on the basis of the initial dry matter in the kitchen.
8. The method for breeding the hermetia illucens three-stage type larvae, according to claim 1, is characterized in that: the specific process of S5 is as follows: and (3) screening the mixture of the two-stage cultured hermetia illucens and the insect manure by a 7-8-mesh screen, putting the screened two-stage hermetia illucens into the blended kitchen mixed raw material with the water content of 71-73%, and culturing for 3-5 days at the temperature of 21-27 ℃.
9. The method of claim 8, wherein the method comprises the following steps: and (3) taking the amount of the kitchen raw materials cultured in the three sections in S5 as the basis of the dry substances in the initial kitchen, wherein each part of worm eggs corresponds to 650-750 parts of kitchen dry substances.
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