108 results about "Artificial feeds" patented technology

The invention provides a greater wax moth feed and a preparation method thereof. The feed comprises 100 g of milk powder, 100 g of flour, 100 g of wheat bran, 100 g of yeast powder, 100 g of bean flour, 60 g of corn flour, 100 g of beeswax, 100 g of honey and 60 g of glycerin. The method comprises the following steps: weighing the components in proportion, and uniformly mixing. According to the method, the adaptability of greater wax moths to different foods can be evaluated by constructing a life table, and although the method is used for feeding the greater wax moths with honeycombs and artificial feed, although the method has different influences on the growth and development of the greater wax moths, the greater wax moths fed with the artificial feed show relatively good adaptability, and the method is suitable for constructing experimental stable populations of greater wax moths.

The present invention discloses a semi-artificial diet for Tuta absoluta larvae, a preparation method thereof and an application thereof. In the present invention, 1000 mL of water is boiled, and after it is stable, 0.5 - 1 g of sorbic acid, 0.5 - 1 g of sodium p-hydroxybenzoate and 0.1 - 0.2 g of thiabendazole are added, and quickly stirred and melted. Subsequently, compound vitamins are added, and after stirring evenly, 500 - 550 g of malt embryos are added and stirred into a dough. When the temperature drops below 30 °C, 150 - 200 g of tomato leaf powder is added and stirred and mixed evenly to obtain the semi-artificial diet for Tuta absoluta larvae. The components of the semi-artificial diet of the present invention can not only meet the nutritional requirements of test insects, but also have an optimal compound ratio of different components, and particularly give the best nutritional ratio. At this ratio, the survival rate, pupation rate and emergence rate from larvae to pupae are high, and the deformity rate of pupae is low.

The artificial feeding device comprises a breeding mechanism and a humidifying mechanism, the breeding mechanism comprises a breeding container, a water seepage hole is formed in the center of the bottom of the breeding container, a filter screen is arranged at the bottom of the breeding container, and a sandy soil layer is arranged on the upper side of the filter screen; the humidifying mechanism comprises a humidifying container, the lower portion of the breeding container is placed in the humidifying container, and a plurality of water is added to the inner bottom of the humidifying container. The artificial feeding device for the pteropsidae larvae is used for artificial feeding of the pteropsidae larvae, staged isolated breeding can be conveniently carried out according to the growth cycle of the pteropsidae larvae, the breeding environment can be controlled, sandy soil can be conveniently replaced in good time, the insect growth environment is protected, and the artificial feeding survival rate of the pteropsidae larvae is increased; the whole growth process of the larvae is conveniently observed, and the species of the larvae are accurately determined.

The invention relates to the field of fish culture, and discloses a mandarin fish culture domestication management system and method based on factory circulating water, and the system comprises a circulating water treatment module which is used for achieving the circulating flow and purification treatment of a culture water body; comprising at least one culture pond and one or more water quality purification devices. The environment control module comprises a temperature control device and an oxygenation device and is used for adjusting the water temperature in the culture pond and increasing the dissolved oxygen content in the water body so as to maintain the environment condition suitable for growth of the mandarin fish; the automatic feeding module comprises an automatic feeding machine, corresponding feed is fed according to the growth stage, the feeding habit and the health condition of the mandarin fish, and smooth transition of the mandarin fish from natural feeding habits to artificial feed is achieved by gradually adjusting the feeding mode and the feed type; and the intelligent monitoring and management module is used for monitoring the breeding environment parameters and the growth state parameters of the mandarin fish in real time, analyzing monitoring data and then providing a corresponding breeding adjustment strategy according to an analysis result.

The application discloses an elagatis bipinnulatus IGF2 gene and application thereof, wherein the nucleotide sequence of the elagatis bipinnulatus IGF2 gene is shown as SEQ ID NO:1, the amino acid sequence of the protein coded by the IGF2 gene is shown as SEQ ID NO:2. A prokaryotic expression vector containing the gene and a corresponding recombinant strain are successfully constructed, a recombinant IGF2 protein is prepared through a high-efficiency expression system, and the recombinant IGF2 protein is applied to preparation of a product for regulating fish feeding, preparation of an additive with the function of promoting fish feeding and preparation of artificial feed with the function of promoting fish feeding. The recombinant IGF2 protein can significantly enhance the expression of feeding-related genes of the elagatis bipinnulatus and significantly improve the feeding amount.

The invention discloses application of an SNP (Single Nucleotide Polymorphism) molecular marker related to the character of siniperca chuatsi in feeding artificial compound feed, and belongs to the field of biotechnology and aquatic animal genetic breeding. The SNP molecular marker is located at the 29390304 site from the 5'end on the 10 # chromosome of the siniperca chuatsi genome, is A or T, and is easy to domesticate when the genotype is AA; or the SNP molecular marker is located at the 1218488 site from the 5'end on the 20 # chromosome of the siniperca chuatsi genome, and is easy to domesticate when being the genotype of T or A or TT. The SNP molecular marker is closely related to the artificial compound feed intake capacity of the siniperca chuatsi, so that the feeding domestication potential of the siniperca chuatsi can be predicted in an early stage through the SNP molecular marker, or molecular marker-assisted breeding is performed through the SNP molecular marker, the proportion of individuals easy to domesticate in a group is increased, the breeding cost is remarkably reduced, and the breeding efficiency is improved. The economic benefit is improved.

The invention discloses a feed for feeding cordyceps sinensis host hepialus larvae as well as a preparation method and application of the feed, and relates to the technical field of artificial feeds. The feed comprises the following components in parts by weight: 5-20 parts of beer yeast powder and / or casein, 30-80 parts of wheat germ powder, 20-40 parts of carrot powder, 0.2-5 parts of a modified preservative, 0.05-0.2 part of antibiotics, 0.2-5 parts of vitamins, 0.01-1 part of edible oil, 6-15 parts of agar and 200-400 parts of water. The modified preservative is composed of a chitosan oligosaccharide-natamycin compound subjected to plasma activation treatment and potassium sorbate according to the ratio of 1: 3-1: 5; a modified preservative composed of a chitosan oligosaccharide-natamycin compound subjected to plasma activation treatment and potassium sorbate is adopted, a porous microsphere structure is formed through a specific preparation process, and the contact area of the preservative and the feed is greatly increased. Agar and water form a gel matrix at a specific temperature, and nutritional ingredients and the like are injected into a coaxial micro-fluidic device, so that the preservative effect of the feed is remarkably enhanced.

The invention relates to a method for improving silkworm artificial feed and mulberry leaf conversion breeding uniformity, and mainly solves the technical problems that in a mode of converting artificial feed breeding into mulberry leaf breeding, silkworm population development in a feed breeding period has individual size differentiation, and the uniformity is difficult to improve due to adaptability difference after first feeding of mulberry leaves. The method comprises the following steps: formulating a feed and mulberry leaf feeding conversion mode, timely screening out slow-development weak individuals in a silkworm group at a specific time before the feeding mode is converted, and screening out weak individuals with poor ingestion due to incapability of quickly adapting to mulberry leaves at a specific time after first feeding of the mulberry leaves. The method is different from'green increasing batch 'operation which is based on sleep time difference, depends on artificial naked eye recognition and is fed in batches in an existing mulberry leaf breeding method, the method solves the special development and differentiation problem of feed breeding and mulberry leaf breeding in a new industry mode through combination of a standardized time window and physical aperture screening, and the silkworm group uniformity is effectively improved.

The invention discloses an artificial feed for feeding purple-stem beetle larvae as well as a preparation method and application of the artificial feed, and belongs to the technical field of insect feeds. The feed takes kudzu vine powder as a core basic component (20-40 parts by weight), and wheat germ powder, soybean meal, yeast powder, cane sugar, agar, Webster salt, a preservative, cholesterol and water as auxiliary materials. The preparation method comprises the steps of dry material mixing, agar hot melting and mixing, high-pressure sterilization, cooling, preservative adding and solidification forming. The feed successfully simulates a natural food source of the purple-stem beetle larvae for the first time, is good in palatability and comprehensive in nutrition, and can support the larvae to efficiently complete growth and development and successfully pupate, and the survival rate can reach 80% or above. According to the method, the bottleneck that the culture of the callicarpa purpurea larvae depends on the fresh kudzu vine is thoroughly solved, and a core material guarantee is provided for standardized, annual and large-scale artificial propagation of the callicarpa purpurea larvae.

The utility model relates to the technical field of predatory mite propagation, and discloses a device for feeding amblyseius stroseii, which comprises a plurality of groups of feeding box bodies for feeding amblyseius stroseii, sealing box covers arranged at the opening ends of the feeding box bodies, ventilation structures arranged on the sealing box covers in a penetrating manner, and connecting structures for communicating two adjacent groups of feeding box bodies, a connecting hole communicated with the connecting structure is formed in the outer side of the feeding box body; through cooperation of the feeding box bodies, the ventilation structures and the connecting structures, the multiple feeding box bodies are connected through the connecting pipelines, the interiors of the feeding box bodies are open, artificial feed can be poured into the feeding box bodies, through the connecting pipelines between the feeding box bodies, contact of feeding operators can be remarkably reduced, the operation safety degree is improved, and meanwhile through automatic connection, the feeding efficiency is improved. Automatic transfer of the amblyseius stroseii and the hosts thereof is achieved, the feeding efficiency of the predatory mites is improved, and one step is further provided for achieving unmanned operation feeding.

The invention discloses an artificial feed for efficient propagation of low-age larva parasitic wasps of prodenia litura. The artificial feed is prepared from the following raw materials: agar powder, soybean meal, sweet potato vines with leaves, yeast powder, wheat germs, sodium benzoate, vitamin C, multivitamins, linseed oil, chlortetracycline hydrochloride soluble powder and the like. The artificial feed is used for feeding 2-5-year-old prodenia litura larvae parasitized by parasitic wasps, and the pupation rate and eclosion rate of the parasitic wasps can both exceed 93%.

The invention discloses a preparation method of a predatory mite feed and a predatory mite feeding method. The predatory mite feed comprises a basic artificial feed and biomass, the basic artificial feed comprises egg yolk liquid, yeast extract powder, cane sugar, honey, purified water, peptone, potassium sorbate and p-hydroxybenzoate; the preparation method comprises the following steps: fully mixing the components into a semi-fluid mixture, and freeze-drying the semi-fluid mixture into a solid state at low temperature by using an instantaneous low-temperature freeze-drying technology to obtain the predatory mite feed. The predatory mite freeze-dried feed is prepared to be used for feeding predatory mites, a traditional feeding scheme of plants-pest mites-predatory mites can be replaced, the whole feeding process is simple, conditions are controllable and easy to control, and the feeding difficulty and the feeding cost are effectively reduced; meanwhile, the predatory mite feed is prepared into a freeze-dried state, the feed utilization rate can be increased, the predatory mites can easily eat the feed, and therefore the breeding efficiency of the predatory mites is improved.

According to the trachinotus ovatus IGF2 gene and the application of the trachinotus ovatus IGF2 gene, the nucleotide sequence of the trachinotus ovatus IGF2 gene is shown as SEQ ID NO: 1, and the amino acid sequence of protein coded by the trachinotus ovatus IGF2 gene is shown as SEQ ID NO: 2. A prokaryotic expression vector containing the gene and a corresponding recombinant strain are successfully constructed, and the recombinant IGF2 protein is prepared through a high-efficiency expression system. The invention also discloses an application of the recombinant IGF2 protein in preparation of a product for regulating fish ingestion, an application in preparation of an additive with a function of promoting fish ingestion and an application in preparation of an artificial feed with a function of promoting fish ingestion. The recombinant IGF2 protein provided by the invention can significantly enhance the expression of the ingestion-related genes of trachinotus ovatus and significantly improve the food intake of trachinotus ovatus.

The application discloses a kind of powder domestic silkworm artificial feed mixed water forming device and method, it is related to silkworm breeding technical field, wherein, device includes: mixing box, one side is equipped with inlet and first baffle, the other side is equipped with outlet and second baffle;Conveying device is equipped in the bottom side of mixing box to the other side;Feed bin is equipped above one side of mixing box, and the lower end of feed bin is equipped with the flat shape of material-throwing portion that penetrates the top of mixing box, and the lower part of material-throwing portion is equipped with first solenoid valve;Suction pipe is communicated with mixing box, and first check valve is arranged in suction pipe;Spraying mechanism includes: spray head, is arranged in the inside top wall or side wall of other side of mixing box;Water pipe, one end is connected with spray head, and the other end penetrates mixing box;Shaped tray is equipped with strip-shaped groove;Scraper is vertically transversely arranged between one side to the other side in the inside of mixing box.The device and method provided by the application can complete the shaping of domestic silkworm feed before cooking, reduce the stirring, dicing and other processes of feed and water, and improve work efficiency.

The invention relates to the technical field of artificial cultivation of oysters, in particular to a method for artificially cultivating oysters. Comprising the following steps: (1) selecting oyster parents, and after ripening, carrying out artificial insemination and hatching to obtain oyster larvae; a ripening agent is used during ripening; (2) cultivating the oyster larvae obtained in the step (1), feeding the oyster larvae with initial feed to obtain young oysters, and feeding the young oysters with artificial feed after the young oysters are attached and metamorphosed; (3) performing intermediate culture on the oyster seedlings obtained in the step (2) to obtain juvenile mollusks; and (4) transferring the juvenile mollusks to a breeding farm to breed for 12-18 months. According to the method, high yield, high efficiency and high quality of oyster culture are achieved through an innovative ripening technology, precise nutrition allocation and scientific environment management, a reliable solution is provided for sustainable development of the oyster industry, and the method has wide application prospects.

The application discloses a device for breeding of large-mouth bass fry and application thereof, and the device comprises a feed domestication feeding unit and a fry breeding unit; wherein the feed domestication feeding unit comprises at least one round pool, a breeding frame and a re-thrower are arranged in the round pool, the breeding frame is a spherical combined frame and is externally connected with a lifter, part of the structure of the re-thrower is embedded in the breeding frame, and a sewage discharge pipe is arranged at the bottom of the round pool; the fry breeding unit comprises a cement pool, a net cage frame and a net cage, the net cage frame is a combined structure of two semicylinders, the frame is rotationally connected with a pool ridge of the cement pool at the center of the bottom surface, and the net cage is sleeved on the semicylinders. Advantages are as follows: (1) the device saves bait by arranging the re-thrower in the breeding frame, and improves the domestication efficiency of artificial bait fry; (2) the device is convenient for fry screening, reduces the damage of fry in the screening process, and greatly reduces the labor intensity; and (3) the device is convenient for sewage cleaning, the fry breeding and production efficiency are improved, and the survival rate of fry is also significantly improved.

The application provides a low-cost artificial feed for domestic silkworms and a preparation method thereof, and relates to the technical field of domestic silkworm breeding.The low-cost artificial feed for domestic silkworms is composed of mulberry leaf powder, corn powder, organic acid, sitosterol, microorganisms, enzyme preparation, vitamins, minerals and the like, and can effectively improve the stress resistance of the domestic silkworms, and improve the silk production rate of the silkworms and the quality of the silk.

The utility model relates to the technical field of silkworm breeding, in particular to a silkworm full-age artificial feed breeding room capable of automatically controlling temperature and humidity, which can enable a plurality of groups of heating plates to move and heat the interior of a breeding room chamber more uniformly when the interior of the breeding room chamber is heated, can automatically control the humidity of the breeding room, and is convenient to use and high in practicability. The reliability and the practicability are high; comprising a ground, a breeding chamber and a sealing door, the breeding chamber is installed at the upper end of the ground, a cavity is formed in the breeding chamber, an opening is formed in the front end of the breeding chamber, and the sealing door is installed at the opening in the front end of the breeding chamber; the device further comprises a mounting plate, multiple sets of heating plates, a moving mechanism and a humidity adjusting mechanism, the multiple sets of heating plates are fixedly mounted on the mounting plate, the mounting plate is mounted in the cavity of the breeding chamber through the moving mechanism, the moving mechanism is used for moving the mounting plate front and back, and the humidity adjusting mechanism is mounted on the breeding chamber. The humidity adjusting mechanism is used for adjusting the humidity in the breeding chamber cavity.

The invention discloses edible artificial feed for larvae of greater wax moths and a preparation method of the edible artificial feed, and belongs to the technical field of insect feed. The preparation method of the greater wax moth larva feed comprises the following steps: uniformly mixing the wheat flour, the white granulated sugar, the yeast powder and the milk powder according to a certain mass ratio to obtain a dry mixture; glycerin, beeswax, liquid honey and purified water are mixed and then heated to be melted to form a mixed solution; and at room temperature, adding the dry mixture into the mixed solution while stirring, cooling, and kneading to form dough, thereby obtaining the greater wax moth larva feed. The edible artificial feed for the greater wax moth larvae can meet the requirements of the larvae for energy and nutrition in different growth stages, promote rapid growth and development of the larvae and shorten the development time of the larvae. The raw materials are easy to obtain, the cost is low, and the method has the advantages of being simple and convenient in manufacturing method, economical in price, time-saving, labor-saving, easy to operate and the like, and can be used for large-scale indoor breeding of greater wax moth larvae.

The application discloses a method for collecting and purifying mouthpart secretion of a predatory natural enemy Orius minor, and belongs to the technical field of biology. The method comprises the following steps: constructing a double-layer membrane sandwich artificial feeding device, encapsulating a nutrient solution in a sandwich space between a first membrane layer and a second membrane layer, and using the feeding drive of the Orius minor to make the Orius minor actively pierce the membrane layer and feed the nutrient solution, so that the mouthpart secretion is released into the nutrient solution in the natural feeding process; after the nutrient solution containing the secretion is collected, ultrafiltration centrifugation technology is used for concentration and purification, and a high-purity mouthpart secretion protein sample is obtained. The natural feeding state of the Orius minor is simulated, the collected secretion can more truly reflect the functional protein released by the Orius minor in the predation process, meanwhile, the integrated design of collection and purification effectively removes small molecular impurities in the sample, and the sample can be directly used for high-precision analysis such as proteomics.

The utility model relates to the technical field of livestock breeding equipment, in particular to an artificial feeding device for young sika deer, and solves the problems that in the prior art, due to the fact that a feeding bottle frame is arranged in the horizontal direction, the transverse space is occupied, and the occupied area is large; and the device is not compact enough in a livestock farm with limited space, so that the applicability and the use convenience of the device are influenced. The device comprises a base, a center column and a mounting ring, the center column is vertically fixed to the top of the base, the mounting ring is in sliding fit with the center column through an inner ring and is supported by a connecting rod, a plurality of angle-adjustable bearing plates and feeding bottles are arranged on the outer ring of the mounting ring, and height adjustment is achieved through driving of a lifting assembly. By means of the surrounding type layout, the occupied transverse space is effectively reduced, the structural compactness is improved, meanwhile, the height and angle adjusting function is achieved, the breast-feeding requirements of young deer of different body types are met, operation convenience and equipment applicability are improved, and the actual requirements of modern farms for efficient and intensive equipment are met.

The invention relates to the technical field of centipede breeding methods, in particular to an artificial feed breeding method of centipedes, which comprises the following steps: S1, breeding environment: the depth of a feeding pond is about 70-90cm, the peripheral wall is built by bricks and is plastered by cement, a circle of glass with the width of about 10-20cm is embedded in the opening of the pond to prevent the centipedes from escaping, and a drainage ditch with the width of 8-12cm and the depth of 3-5cm can be dug along the inner wall of the pond; a feeding groove with the width of 25-35 cm and the depth of 2-5 cm is dug in the inner side of the ditch, after centipede seedlings are fed, the pond needs to be covered with a straw mat for shading, and the interior of the pond needs to be kept clean, moist and shady and cool in the breeding period; s2, feed formula: feeding feed comprises meat materials, vegetarian materials, a nutrition promoter and an antibacterial agent, the meat materials are any one or more of living insects, egg white, fresh pork, fish meat, pig lungs and chicken, and the vegetarian materials are one or more of carrots, cucumbers, Chinese cabbages and watermelons; s3, feeding time: feeding once every day, wherein the feeding time is 19: 00-20: 00.

The invention belongs to the technical field of agriculture, and provides an artificial feed and a method for testing the influence of the artificial feed on the growth and development of tomato leaf miners, the method comprises three artificial feed formulas, and standardized feed blocks are prepared through moist heat sterilization and low-temperature preservation. The method comprises the following steps: subpackaging feed by adopting finger-shaped tubes, inoculating according to the density of 3 larvae in each tube, feeding at 25 + / -1 DEG C, and measuring indexes such as the duration, the survival rate, the pupation rate and the eclosion rate of the larvae. Results show that the difference between the formula I and natural foodstuff is minimum, the larva survival rate, pupation rate, pupa weight, eclosion rate and hatching rate are not obviously different from those of natural tomato leaf feeding, and although the larva and pupa duration is prolonged and the single female egg laying amount is reduced, the complete life history of tomato leaf miners can still be supported. According to the method, indoor stable test insects with consistent physiological status are realized, and reliable insect source guarantee is provided for biological research and prevention and control technology development of the tomato leaf miner.

The utility model discloses a multifunctional device for insect breeding and behavior testing. Relates to the technical field of insect breeding equipment. A gauze partition plate is arranged in the rearing cage; a liquid feeding device, a water feeding device, a solid feeding device, an adult oviposition container and a larva feeding box are placed in the feeding chamber; a pupation box is arranged in the pupation eclosion chamber; a foam layer floats on the surface of the liquid foodstuff and is lined with filter paper; a plurality of water feeding assemblies are arranged in the water feeder, and each water feeding assembly comprises moisturizing filter paper and a fiber cotton swab; the multiple water feeding assemblies abut against one another to fully seal the bottle opening of the water feeder. The device mainly solves the bottleneck problem of drowning of the adult fruit flies, provides a suitable oviposition container for an adult oviposition selection test, can well realize breeding, continuous breeding and adult trend and oviposition behavior selection research of the adult fruit flies, avoids a large amount of death of the tested adult fruit flies, saves manpower, material resources and financial resources, and improves the test efficiency of the adult fruit flies. And the artificial feeding reproduction and test efficiency is greatly improved.

This invention discloses an indoor breeding method for ladybugs, belonging to the field of biological control. This invention uses beet armyworms to partially replace whiteflies, the natural food source for ladybugs at different developmental stages, thereby reducing the amount of whiteflies required. Since the artificial feeding technology for beet armyworms is currently very mature, beet armyworm eggs can be obtained stably and efficiently. Therefore, this invention, by using beet armyworm eggs to partially replace whiteflies, the natural food source for ladybugs, simplifies the indoor breeding process of ladybugs, reduces breeding costs, and has good application prospects.

The invention discloses an artificial compound feed for improving collagen deposition of schizothorax grahami and application of the artificial compound feed. The feed additive is characterized in that proline, hydroxyproline, eucommia ulmoides, broad beans and a yeast extract are added, and collagen deposition of the schizothorax grahami is improved under the condition that healthy growth of the schizothorax grahami is not affected. The feed comprises fish meal, fermented soybean meal, soybean protein concentrate, corn protein powder, fish oil, soybean oil, soybean lecithin, alpha-starch, cassava starch, choline chloride, microcrystalline cellulose, compound vitamins, compound minerals, monocalcium phosphate, proline, hydroxyproline, eucommia ulmoides, broad beans, a yeast extract, an antioxidant and a mildew preventive. The feed comprises the following nutritional ingredients in percentage by weight: 40.825%-41.407% of crude protein, 8.132%-8.633% of crude fat, and the balance of carbohydrate, crude fiber, ash and water. According to the artificial compound feed disclosed by the invention, the collagen deposition of the schizothorax grahami is remarkably improved, and the artificial compound feed also has a certain promoting effect on the protein deposition of the schizothorax grahami.

The invention relates to the field of aquaculture, in particular to mandarin fish fry domestication feed and application. The feed is specially designed for mandarin fish fries, aims to promote the fries to quickly adapt to artificial feed and improve the survival rate and growth speed of the fries, and is mainly composed of fish meal, mixed algae powder, dried porcine soluble, soybean meal, peanut meal, meat and bone meal, blood meal and the like, and matched with vitamin premix and mineral premix. According to the feed, by optimizing the proportion of protein, fat and carbohydrate, the protein content of the feed is larger than 50%, the fat content of the feed is larger than 10%, the nutritional requirement for rapid growth of fish fries is met, the vitamin premix in the feed contains vitamin A, vitamin E and vitamin C, the disease resistance of the fish fries is effectively improved, and the survival rate of the fish fries is increased. The feed provided by the invention can significantly improve the domestication effect of large-scale mandarin fish fries.

The invention belongs to the technical field of artificial feed rearing of silkworms, and particularly relates to a composite additive for improving the survival rate of silkworms and a preparation method thereof. The composite additive for increasing the survival rate of silkworms comprises the following raw materials in parts by weight: 20-30 parts of aged zeolite powder, 1-5 parts of chitosan, 5-10 parts of a climbing fig extract, 7-12 parts of quinoa polypeptide and 1-5 parts of trace elements. According to the compound additive disclosed by the invention, germinated climbing fig seeds are selected to prepare the climbing fig extract, and the climbing fig extract and the quinoa polypeptide are added into the silkworm feed, so that the compound additive has an immune regulation effect, and can enhance the immunity of silkworms and reduce the occurrence of diseases, thereby improving the survival rate of the silkworms and reducing the loss for silkworm farmers.

The application discloses an insect pathogenic preparation for preventing and treating Cylas formicarius, a preparation method and application thereof, and belongs to the field of agricultural technology. The insect pathogenic preparation for preventing and treating Cylas formicarius comprises a corpse compound agent of an insect pathogenic nematode and a sweet potato root protection agent. The corpse compound agent of the insect pathogenic nematode comprises an insect pathogenic nematode corpse agent, an artificial feed of Cylas formicarius, a polyphenol oxidase inhibitor and trehalose (alpha,alpha) dry powder, and the mass ratio is 1-3:6-8:0.25-0.35:0.6-0.8. Each 1L of the sweet potato root protection agent contains 0.03-0.05g of a biocontrol bacterium agent, 3-5g of a Cylas formicarius repellent and 90-110ml of a bonding agent, and the volume is supplemented with water. The application further discloses a preparation method of the insect pathogenic preparation and application thereof in preventing and treating Cylas formicarius. The insect pathogenic preparation can prevent and treat Cylas formicarius through multiple actions, and has a good prevention and treatment effect on adult and larva of Cylas formicarius.