32results about How to "Increase body length" patented technology

The invention provides a DorysthenesgranulosusThomson indoor artificial breeding method comprising the following steps: collecting DorysthenesgranulosusThomson imago; making the DorysthenesgranulosusThomson imago to mate and lay eggs, and collecting and hatching DorysthenesgranulosusThomson eggs so as to obtain primary hatching larva; arranging culture holes on an end face of a fresh sugarcane stem, and inoculating the primary hatching larva into the culture holes for cultivation; transferring the larva into sugarcane stems for single breeding when the larva appetite largely grows; respectively placing pupa into an eclosion container for single eclosion after mature larva creep into soil and pupate; placing male / female mixed eclosion imago into an insect culture container for mating after DorysthenesgranulosusThomson eclosion, and paving a 1-3cm thickness fine sands on the bottom of the insect culture container so as to allow the DorysthenesgranulosusThomson to lay eggs. By using the method, the DorysthenesgranulosusThomson is high in egg hatching rate, high in larva survival rate, high oviposition amount, thus contentiously obtaining large amount fully grown individuals, and providing important base for DorysthenesgranulosusThomson control research.

The invention relates to the extraction field of natural active substances, in particular to a preparation method of Pueraria lobata polysaccharide and the application of Pueraria lobata polysaccharide as a growth promoter. The preparation method of the pueraria root polysaccharide comprises the following steps of: A) mixing Pueraria lobata root powder and water according to 1g: 2-20mL, and performing ultrasonic extraction at 40-80 DEG C; B) centrifuging that material liquid after ultrasonic extraction, mixing the centrifuged sediment and water according to 1g: 2-20mL, ultrasonic extraction at40-80 DEG C, and then centrifuging; C) mixing that supernatant after two centrifugation in the step B), and concentrating under reduced pressure to obtain concentrated solution; D) mixing that concentrated solution and ethanol according to the volume ratio of 1: 2-5 to carry out alcohol precipitation; E) centrifuging the product solution after alcohol precipitation, and concentrating the obtainedsupernatant under reduced pressure to obtain the concentrated solution to be Pueraria lobata polysaccharide. The preparation method is simple in operation and has high yield of Pueraria lobata polysaccharide.

The invention discloses feed for adult yellow catfishes. Every 100g of the dry feed comprises 20g-30g of fish meal, 10g-20g of shrimp meal, 5g-10g of shell powder, 5g-10g of chicken intestine powder, 5g-10g of earthworm powder, 5g-10g of vegetable fat, 10mg-100mg of mineral substance, and the balance of plant auxiliary material, wherein the vegetable fat is any one or more of soybean oil, peanut oil and rapeseed oil; the plant auxiliary material is one or more of bean pulp, rapeseed meal, cottonseed meal, wheat bran and corn flour; the mineral substance is a sulfate mixture of zinc, iron, magnesium and manganese. The feed for adult yellow catfishes disclosed by the invention contains rich animal nutritional ingredients including the fish meal, the shrimp meal, the shell powder, the chicken intestine powder and the earthworm powder, and is very similar to a food source of the yellow catfishes under a natural state, so that the appetite of the yellow catfishes is effectively promoted and the growth efficiency of the yellow catfishes is improved; moreover, the added mineral substance can be used for quickly promoting increase of the yellow catfishes and increase of body color.

The invention discloses a method for improving the quality of turbot sperm eggs and larval and juvenile, belonging to the field of nutrition and feed of aquatic livestock. Vitamin A is added into a female turbot patent fish feed until the final content is 19000IU / kg, and vitamin E is added into a male patent fish feed until the final content is 244-721mg / kg. The vitamin A can improve the egg laying amount of turbot patent fish and improve the quality of eggs, the activity of SOD (Superoxide Dismutate) in the blood serum of patent fish is improved obviously, MDA (Malondialdehyde) is obviously reduced, and the antioxidation capacity of patient fish mechanism can be improved; and the vitamin E can obviously improve the testis index, sperm generating amount, service life of sperm, sperm density and sperm mitochondria number of male fish, and improve the quality of the sperm of patient fish of turbot. As the female patent fish feed and the male patent fish feed are fortified respectively, the floating rate, the fertility rate and the hatching rate of fertilized ova as well as the survival rate and the length of larval and juvenile hatched primarily can be improved obviously.

The invention discloses a special feed capable of increasing the survival rate of leiocassis longirostris. The special feed comprises the following raw materials in parts by weight: 15-30 parts of sweet sorghum, 20-40 parts of oat flour, 10-20 parts of alfalfa powder, 10-18 parts of water hyacinth dry powder, 60-70 parts of a vegetable protein additive, 4-12 parts of kelp powder, 4-10 parts of puffed blood powder, 2-4 parts of rice wine distillers' grains, 2-4 parts of yeast protein, 4-8 parts of an immune enhancer, 2-4 parts of a Chinese herbal medicine additive and 4-6 parts of a chitosan compound, wherein the chitosan compound is prepared through the following technology: stirring the bentonite, the chitosan, a silane coupling agent and water, performing ultrasonic vibration, adding Tween 80, continuing performing stirring, performing filtering, performing washing and performing drying, so that the chitosan compound is obtained. According to the special feed, the leiocassis longirostris can easily adapt to breeding environment, the survival rate of seedlings is high, the immunity is high, the obtained leiocassis longirostris has the characteristics of being natural in body colorand healthy in fish body, the nutrient value of the leiocassis longirostris bred with the feed disclosed by the invention can be the same as that of wild leiocassis longirostris, and the requirementsfor high nutrient value of consumers can be met.

The present invention discloses a feed for juvenile Pelteobagrus fulvidraco. The feed is prepared by the following raw materials in parts by weight: fish powder 25-40 parts, chicken intestine powder 10-20 parts, spirulina powder 5-10 parts, ox bone powder 5-10 parts, fish oil 3-8 parts, vegetable fat 5-10 parts, mineral 0.1-1 parts and plant adjuvant 5-20 parts, wherein the vegetable fat is selected from any one or more of soybean oil, peanut oil or rapeseed oil; the plant adjuvant is composed of any one or more of soybean meal, rapeseed meal, cottonseed meal, wheat bran or corn meal; and the mineral is a sulfate mixture of zinc, iron, magnesium and manganese. The feed contains rich animal nutritional ingredients including fish powder, chicken intestine powder, ox bone powder and fish oil. The animal nutritional ingredients are very similar to food sources of the Pelteobagrus fulvidraco in natural state, and effective promotion of appetite and improved growth efficiency of the Pelteobagrus fulvidraco can be realized. The mineral added in the feed can quickly promote increase of body length and body color of the juvenile Pelteobagrus fulvidraco.

The invention discloses a penaeus vannamei aquaculture system which comprises the following steps: 1, arranging an oxygen-increasing machine, a laser emission device and an ultrasonic wave generation device in a pond, and controlling the pH value and the transparency of water; 2, feeding penaeus vannamei seeds; 3, on the first to fifth days after the penaeus vannamei seeds are fed, uniformly mixing a conditioner with an opening material, feeding the penaeus vannamei seeds with the mixture, and feeding an activator and shrimp shell maintenance liquid every day; 4, on the sixth day after the penaeus vannamei seeds are fed, stopping feeding the opening material, but feeding the penaeus vannamei with a young shrimp material, and feeding the shrimp shell maintenance liquid every 3 days; 5, stopping feeding the young shrimp material, but feeding the penaeus vannamei with a medium shrimp material, feeding the shrimp shell maintenance liquid every 7 days, starting a motor and a laser emitter after each feeding of the activator is completed, and starting an oil cylinder and an ultrasonic wave generator after each feeding of the shrimp shell maintenance liquid is completed. The penaeus vannamei aquaculture system has outstanding beneficial effects of reducing the bait coefficient of penaeus vannamei, shortening the aquaculture period, increasing the survival rate and the acre yield and realizing fast individual weight gain.

The invention discloses a complex enzyme preparation for a feed of a mink in a winter fur growth period. The complex enzyme preparation for the feed of the mink in the winter fur growth period comprises the following six enzymes: amylase, acid proteinase, araboxylan enzyme, Beta-mannase, pectinase and phytase. The complex enzyme preparation can effectively fill the gap on endogenous enzyme of the mink, degrades the main antinutritional factors, namely, non-starch polysaccharides (NSP), in a vegetable feedstuff, reduces the gut digesta viscosity of the alimentary canal of the mink, and improves the digestibility utilization rate of the mink to the maize-bean pulp-fish meal type daily ration. By adding the complex enzyme preparation, the apparent metabolizable energy (AME) in the daily ration can be increased, the digestibility and utilization rate of the protein and starch can be raised, the excessive multiplication of spoilage organisms in the intestinal canal can be reduced, the microecological balance of the intestinal canal can be adjusted, the diarrhea rate is reduced, the premunition and the survival rate of the mink in the winter fur growth period can be increased, the feed conversion rate is raised, the average daily weight gain of the mink is increased, and the dimension of the skin of the mink is expanded, the costs of the feed and breeding are decreased, and the economic benefit is increased.

The invention relates to a wild scorpion breeding method, and belongs to the field of scorpion breeding. According to the method, wild scorpions are introduced, bred for 10-15 days and then fertilized, feed with different components and rich and balanced nutrients is fed during pregnancy, young stage and larval stage, temperature and humidity are strictly controlled, moderate feeding density is kept, management is scientific, the weight, the body length and the moult rate of the scorpions are increased, incidence and death rate are reduced, the quality of the scorpions is enhanced, and the economic benefit of scorpion breeding is improved.

The invention discloses a rapid breeding technology of hapalogenys mucronatus. The rapid breeding technology comprises the following steps: treatment of a culture pond: selecting an elliptical culture pond, disinfecting the culture pond and culture tools by using a disinfectant, and cleaning the culture pond with seawater for later use; fry putting: selecting an ecological polyculture mode of hapalogenys mucronatus and perches; bait feeding: putting bait into the culture pond; carrying out bottom sucking and water changing continuously in the culture period, adopting aerated micro-flowing water for culture, and ensuring that water is fresh; grading at proper time: when the pond is cleaned and disinfected, independently selecting individuals growing slowest to another water body for independent culture; adopting a competitive mechanism of last elimination; and disease control: performing medicated bath disinfection and pond cleaning treatment on the fish bodies in the culture process. The rapid, efficient and healthy breeding technology for the hapalogenys mucronatus is provided; and the obtained hapalogenys mucronatus has the advantages of higher survival rate, higher body length, higher body mass, higher nutrient substances, higher nutritional value and higher polyunsaturated fatty acid content.

The invention discloses an ecological totally-enclosed circulating mariculture system which comprises a fish culture pond, a purification pond and a circulating unit. The fish culture pond has an area of 25-30 m<2> and water depth of 1.0-1.5 m; red sea bream is cultured in the fish culture pond; the putting density of the red sea bream is 10-20 / m <3>; and the body length of the red sea bream is 12.0 + / -3.0 cm, and the weight of the red sea bream is 56.4 + / -25.0 g. Sesuvium portulacastrum is cultured in the purification pond, the specification of the purification pond is (3.5-4.5)m * (5.5-6.5)m, the water depth of the purification pond is 0.5-1.0 m, the purification pond is divided into 3-4 water channels at equal intervals, the water channels are connected in series end to end, and water flow bypasses the water channels in an S shape; and the density of the sesuvium portulacastrum is 20-30 plants / m<2>, the sesuvium portulacastrum plants are 35.9 + / -15.0 cm, and the average wet weight is 212.6 + / -100.0 g / plant. The circulating unit is used for enabling water in the fish culture pond to flow into the purification pond and enabling water in the purification pond to flow into the fish culture pond; and the culture water is circulated for 5-10 times every day between the fish culture pond and the purification pond. A breeding-planting-water quality purification three-in-one ecological culture system is constructed, and a benign composite ecological circulation system which can recycle energy and is stable in structure is formed.

The invention relates to a method for breeding crayfish after rice straw compost fermentation and returning to a field, and belongs to the technical field of crayfish breeding. The method specifically includes the steps of crushing rice straws, adding an organic material leavening agent, performing stacking, and continuously performing composting and fermenting for 60-80 days to obtain compost fermented rice straws; putting the compost fermented rice straws into a crayfish breeding field; planting elodea nuttallii in the crayfish breeding field; and putting young crayfishes into the crayfish breeding field where the elodea nuttallii is planted, and catching the young crayfishes after 50-60 days. According to the method for breeding the crayfish after rice straw compost fermentation and returning to the field, the rice straw is subjected to compost fermentation and then returned to the field for breeding the crayfish, so that the aims of fully utilizing the crop straw and increasing the breeding yield of the crayfish are achieved.

The invention belongs to the technical field of shrimp feed preparation, and discloses a preparation method of a feed for promoting growth and development of procambarus clarkia. Theprocambarus clarkia feed comprises white fish meal, soybean meal, fish oil, soybean phospholipid, flour, bran, earthworm powder, vitamin and mineral premix, monocalcium phosphate, choline chloride, molting element, dextrin and algin. According to the method, 3%-4% of the soybean phospholipid is added into the feed, so that the body length, the weight growth rate and the characteristic growth rate of procambarus clarkia juvenile shrimps can be effectively increased, the feed coefficient is reduced, the survival rate of the juvenile shrimps is increased, and the growth of the juvenile shrimps is accelerated; thedigestive enzyme activity and the oxidation resistance of the procambarus clarkia can be remarkably improved by adding 3% of the soybean phospholipid; and 3%-4% of the soybean phospholipid plays an important role in promoting the ovarian development of the procambarus clarkia, increasing the ovarian index, increasing the diameter of oocytes, accelerating the synthesis and accumulation of egg yellow phosphorus protein and promoting the maturation of the oocytes.

The invention discloses feed for adult yellow catfishes. Every 100g of the dry feed comprises 20g-30g of fish meal, 10g-20g of shrimp meal, 5g-10g of shell powder, 5g-10g of chicken intestine powder, 5g-10g of earthworm powder, 5g-10g of vegetable fat, 10mg-100mg of mineral substance, and the balance of plant auxiliary material, wherein the vegetable fat is any one or more of soybean oil, peanut oil and rapeseed oil; the plant auxiliary material is one or more of bean pulp, rapeseed meal, cottonseed meal, wheat bran and corn flour; the mineral substance is a sulfate mixture of zinc, iron, magnesium and manganese. The feed for adult yellow catfishes disclosed by the invention contains rich animal nutritional ingredients including the fish meal, the shrimp meal, the shell powder, the chicken intestine powder and the earthworm powder, and is very similar to a food source of the yellow catfishes under a natural state, so that the appetite of the yellow catfishes is effectively promoted and the growth efficiency of the yellow catfishes is improved; moreover, the added mineral substance can be used for quickly promoting increase of the yellow catfishes and increase of body color.

The invention provides a breeding and raising method of multi-rib tri-hybrid pigs. The breeding and raising method comprises the following steps: constructing a basic breeding group; breeding male pigs and female pigs for matching and farrowing; breeding piglets and seed selection; repeating matching and farrowing as well as seed selection. By the use of a multi-rib control major gene breeding technology, a high-level and large-scale Duroc core group is subjected to systematic breeding combined with gene breeding and conventional breeding, so that a new series of multi-rib, rapid-growing and high-meat-yield high-quality breeding pigs can be bred. The capability of independent innovation of the breeding pig enterprises of China is greatly improved, the core competitiveness of the breeding pig enterprises of the district and even China is enhanced, and a foundation is laid for creating a high-quality and high-end breeding pig culture base; meanwhile, a high-quality breeding pig source is supplied to live pig production of China, and the breeding and raising method has a giant market requirement and wide application and popularization prospect.

The invention discloses an artificial feeding method for chlorophorus diadema motschulsky. The artificial feeding method includes (1) obtaining virginal adults and eggs; (2) managing hatching of the eggs indoors; (3) feeding artificially indoors; and the like. A test result shows that the artificial feeding method for the chlorophorus diadema motschulsky has the advantages that egg laying amount,pupation rate and eclosion rate are remarkably increased; developmental duration can be shortened by about four times; the weights and the lengths of larva and adults are increased, and survival rateis high; a large quantity of chlorophorus diadema motschulsky with uniform development and consistent physiology can be obtained continuously without being limited by seasons; and the like.

The invention provides a DorysthenesgranulosusThomson indoor artificial breeding method comprising the following steps: collecting DorysthenesgranulosusThomson imago; making the DorysthenesgranulosusThomson imago to mate and lay eggs, and collecting and hatching DorysthenesgranulosusThomson eggs so as to obtain primary hatching larva; arranging culture holes on an end face of a fresh sugarcane stem, and inoculating the primary hatching larva into the culture holes for cultivation; transferring the larva into sugarcane stems for single breeding when the larva appetite largely grows; respectively placing pupa into an eclosion container for single eclosion after mature larva creep into soil and pupate; placing male / female mixed eclosion imago into an insect culture container for mating after DorysthenesgranulosusThomson eclosion, and paving a 1-3cm thickness fine sands on the bottom of the insect culture container so as to allow the DorysthenesgranulosusThomson to lay eggs. By using the method, the DorysthenesgranulosusThomson is high in egg hatching rate, high in larva survival rate, high oviposition amount, thus contentiously obtaining large amount fully grown individuals, and providing important base for DorysthenesgranulosusThomson control research.

The invention discloses a method for promoting growth, development and reproductive development of yellow mealworms, and belongs to the technical field of feed. The method for promoting growth, development and reproductive development of yellow mealworms comprises the following steps: processing sweet potatoes to obtain sweet potato residue powder and black oil powder; feeding yellow mealworms with 25% of sweet potato powder and 75% of wheat bran or 40% of black oil powder and 60% of wheat bran in a growth and development period of the yellow mealworm larvae; and feeding the yellow mealworms with 2% of sweet potato powder and 75% of basal feed or 40% of black oil powder and 60% of wheat bran in a reproductive development period of the yellow mealworms. The yellow mealworms are fed with 25%of sweet potato powder and 75% of wheat bran to promote growth, development and reproductive development of yellow mealworms, and the yellow mealworms are fed with 40% of black oil powder and 60% ofwheat bran to promote growth, development and reproductive development of yellow mealworms.

The invention provides a cultivation method for multi-rib hybridization boars with high applicability. The cultivation method includes the steps: S10 selecting varieties or strains with more number and high applicability in the local area as female parents; S20 selecting the boars with allelic genes increasing number of ribs as male parents; S30 eliminating the all boars after the female parents and the male parents generate later generations, and reserving sows to obtain first-generation multi-rib hybridization sows. According to the cultivation method, multi-rib major gene cultivation technologies are controlled, and multi-rib hybridization fragrant pigs are selected and cultivated by the aid of a high-level and large-scale system of gene cultivation and conventional cultivation. The new fragrant pigs are more in rib and carcass lean meat, rapid in growth, excellent in meat flavor, good in reproductive performance and high in feed conversion.

The invention provides a use of Bacillus pumilus as a growth regulator of Lepidoptera insects. The Bacillus pumilus was preserved in the China Center for Type Culture Collection (CCTCC) on August 12, 2010, and the preservation number is CCTCC M2010202. The invention opens up a new field of bacillus pumilus as a high-quality microbial resource, provides beneficial ideas for the cultivation and management of lepidopteran insects, and provides strong support for the prevention and control of agricultural and forestry crops. The growth regulator is green, safe and pollution-free, and has broad application prospects and market value in the agricultural field.

The invention discloses a culture medium and method for feeding predatory coenosia larvae indoors. The culture medium is formed by adding water in one of the following components or adding water in the mixture of many of the following components which are mixed according to a random proportion: coconut chaff, peat, turf, vermiculite, mushroom residues and wood chips, wherein the amount of the added water is in a standard that no flowing water exists in the culture medium. The method for feeding the predatory coenosia larvae indoors comprises the following steps: 1) placing newly hatched larvae of predatory coenosia in a culture vessel, and adding the culture medium in the culture vessel according to the proportion that each newly hatched larva of the predatory coenosia requires 0.5-2 cubic centimeters of the culture medium; 2) feeding the newly hatched larvae under the temperature of 23-27 DEG C and 65-75% of relative humidity, feeding each coenosia larva of 1-3 days with 3-9 larvae of fungus gnats of 1-3 days every day, and feeding each coenosia larva of 4 days with 3-9 larvae of fungus gnats of 2-4 days every day. The method disclosed by the invention is simple, is wide in raw material source, and is low in production cost.

The invention provides an application of Bacillus pumilus serving as a growth regulating agent for lepidoptera insects. The Bacillus pumilus is collected in China Center for Type Culture Collection (CCTCC) on August 12, 2010, and the collection number is CCTCC M2010202. The new field of the Bacillus pumilus serving as a high-quality microbial resource is expanded, beneficial ideas are provided for the breeding management mode of the lepidoptera insects, and strong support is provided for pest and disease control of agricultural and forest crops. The growth regulating agent is green, safe and pollution-free, and has wide application prospects and market values in the field of agriculture.

The application discloses feed for improving the digestibility of penaeus vannamei and a preparation method therefor and application of the feed. The feed consists of grain powder, cake meal, calciumcarbonate, zeolite, radix isatidis extract, silkworm chrysalis, an antioxidant, a mold inhibitor, rhizoma atractylodis extract, rhizoma curcumae longae extract, nucleotide, lysozyme (LSZ), common cyanotis root extract, cellulase, herba leonuri extract, alpha-amylase, rhizoma alismatis extract and ulva lactuca extract. The feed is not easy to go moldy or bad, has no caking and a peculiar smell, hashigh stability in water, does not scatter within 3-5h, has no residues, has no side effects, destroys a cell outer membrane of vibrio, and can kill vibrio parahaemolyticus; the survival rate of the penaeus vannamei is 74%-79%, and is increased by 10%-17%; body length is increased by 20%-50%; the reproductive capacity is improved; the feed has good palatability; the digestibility is improved; thepenaeus vannamei grows fast, is 16-24cm long and weighs 42-52g; and the feed is easy to industrialize, and has a broad application prospect.

The invention discloses a rapid cultivation technology of barbed bearded sea bream; it includes: culture pond treatment: select an oval culture pond, use disinfectant to sterilize the culture pond and culture tools, and then use seawater to clear it for standby; Putting in: adopt the ecological polyculture mode of cross-banded bearded seabream and sea bass; feed feeding: put bait into the breeding pond; absorb the bottom and change water continuously during the breeding period, and use aerated micro-flow water culture to ensure fresh water quality; timely grading: in When pouring and disinfecting the ponds, the slowest-growing individuals are individually selected and raised separately in other water bodies; the competition mechanism of "last place elimination" is adopted; disease prevention and treatment: the fish body is disinfected in dipping baths and ponds are poured during the breeding process. The present invention is a rapid, efficient and healthy cultivation technique for the barbed bearded seabream; the obtained barbed bearded seabream has a higher survival rate, higher body length and weight, higher nutrients and nutritional value, It also contains higher polyunsaturated fatty acids.

The invention relates to a tiger frog breeding method, and belongs to the technical field of artificial breeding of tiger frogs. In order to achieve the purpose of breeding the tiger frogs efficiently, the tiger frog breeding method comprises the following steps that 1, newly hatched tiger frog tadpoles are put into in a light-proof terrarium filled with aerated water, and feeding is conducted atthe water temperature of 28-30 DEG C; 2, in the tadpole feeding process, LED green light with the peak wavelength being 527 nm and the half-wave width being 65 nm is used for irradiation for consecutive 24 hours daily until metamorphosis is completed. The method can be used for breeding high-quality young frogs efficiently.

The invention discloses a Litopenaeus vannamei culture method with the low bait coefficient. The method includes the following steps that 1, one aerator is arranged per mu, a laser emitting device is installed every 300 square meters, an ultrasonic generation device is installed every 100 square meters, water flows in, and the pH value and transparency are controlled; 2, shrimp larvae are put; 3, a nutrient enrichment material is fed on the first to fifth days after the shrimp larvae are put; 4, feedstuff for the mouth-open period stops being fed on the sixth day after the shrimp larvae are put, and a fitness material replaces the feedstuff for the mouth-open period to be fed for 20-35 days; 5, the fitness material and a meat increase material are mixed to be uniform according to the mass ratio of 1:0.5, and the mixture is fed for 6-10 days; 6, the fitness material and the meat increase material are mixed to be uniform according to the mass ratio of 1:1, and then the mixture is fed. The method has the advantages that the bait coefficient of Litopenaeus vannamei is remarkably reduced, the survival rate and per mu yield are effectively increased, and individuals of the Litopenaeus vannamei are longer and heavier within the same culture time.

The invention discloses a feed for procambarus clarkii and a preparation method and application thereof. The feed comprises grains, cake meal, aquatic plants, snail and clam meat, soybean protein, beer yeast, an attractant, vitamins, table salt, fish meal, rice bran, a shelling element, a binding material, bacillus subtilis, dextrin, zinc sulfate heptahydrate, a licorice root extract and small peptides. The feed is not liable to mildew and deteriorate, free from caking and peculiar smell, good in stability in water, and free from collapse within 3-5h. After the feed for the procambarus clarkiiis used, the ecdysis rate of the procambarus clarkii is increased by 35-45%, the survival rate is increased by 15-25%, the body length is increased by 15-35%, the procambarus clarkii is high in growth speed, the propagation capacity is improved, and the feed is good in palatability, easy to industrialize and broad in application prospects.