30 results about "Penaeus stylirostris" patented technology

The invention relates to an ecological circulation system and a breeding method, in particular to an ecological circulation system for litopenaeus vannamei systematic breeding and a breeding method. The ecological circulation system comprises a litopenaeus vannamei pond, a net frame aerating system is arranged in the litopenaeus vannamei pond, a sewage suction and energy-saving discharge system is arranged at the bottom of the litopenaeus vannamei pond and communicated with a sewage suction and filter system, the sewage suction and filter system is communicated with a water circulating and refluxing system, and the water circulating and refluxing system is communicated with the litopenaeus vannamei pond. The breeding method includes steps of pond cleaning and treating, litopenaeus vannamei and bait throwing, periodically cleaning, water circulating and sewage suction, aerating equipment starting, pond patrolling and observing and litopenaeus vannamei outputting. The ecological circulation system and the breeding method have the advantages of compact and reasonable structure, comprehensive circulation and utilization, breeding cost reduction and higher litopenaeus vannamei quality.

The invention relates to a penaeus vannamei boone low-salinity culturing method. During seed culturing, the salinity is 8 to 100%; in the phase of juvenile shrimps, the salinity of a culturing water body is increased to 6%; in the phase of middle-age shrimps, the salinity of the culturing water body is reduced to 4%; in the phase of adult shrimps, the salinity of the culturing water body is reduced to 2%. The method has the advantages that the secondary virus disease caused by the infection of pathogen of penaeus vannamei boone in seawater is avoided, meanwhile, the growth speed of the penaeus vannamei boone is ensured, and the economic benefit of a farmer is protected; by utilizing the habits of Chinese soft shell turtles, silver carps or bighead carps using planktons as foods, the amount of seaweed in water is controlled, so the water quality is improved, the waste at water body resources is avoided, and better economic benefits can be obtained.

The invention discloses an ecological breeding method of breeding penaeus vannamei boone, crucian and chub in a mixed mode. The method includes the steps of preparing a pond, cleaning the pond, inputting water, disinfecting the pond water and richening the water sequentially before throwing in fingerlings and shrimp larvae, throwing in white gold crucian and chub, and then throwing in penaeus vannamei boone larvae. Compared with the prior art, the method has the advantages that the thrown-in white gold crucian does not rob food from the penaeus vannamei boone, the organic content at the bottom of the pond can be greatly decreased, and a substrate is effectively improved; the chub bred in the mixed mode has a good effect on adjusting the balance of algae in a water body, and the water quality can be effectively improved; the substrate and the water quality of the pond can be comprehensively improved by throwing in the fingerlings first, the harm caused by organic matter in bottom mud to the penaeus vannamei boone larvae are further reduced, and the stocking success rate of the penaeus vannamei boone larvae is ensured; the perfect combination of the penaeus vannamei boone, the crucian and the chub has great significance on penaeus vannamei boone breeding environment adjustment, disease prevention and income increase.

The invention relates to the field of freshwater farming of penaeus vannamei boone and discloses an ecological freshwater farming method for the penaeus vannamei boone. The method mainly comprises the steps of performing a pond, cleaning the pond, planting submerged plants, injecting water, cultivating water fleas, desalinating fry, performing fry stocking, performing reasonable feeding and alternately catching the penaeus vannamei boone out of the pond. Compared with the prior art, chemicals are basically not used in the whole farming process, water is not changed in quantity to guarantee that the farmed penaeus vannamei boone is high in survival rate, high in disease resistance and growth speed and more delicious in taste, and therefore high economic benefits can be achieved.

The invention discloses a method for preserving penaeus vannamei. The method comprises the following steps: performing enzymolysis on fresh shrimp heads so as to obtain an enzymolysis liquid containing an antibacterial peptide and an antioxidant peptide; adding lipopeptid and tea polyphenol into the shrimp head enzymolysis liquid so as to prepare a penaeus vannamei preservative liquid; soaking fresh penaeus vannamei in the penaeus vannamei preservative liquid for 15-30 minutes, and fishing out to drain off the water for 2 minutes; putting the processed penaeus vannamei into preservative bags, and putting into a refrigerator to preserve at 0-4 DEG C. Not only are shrimp heads subjected to high-value utilization, but also a low-cost biological preservation method for penaeus vannamei can be provided, and the method has good application prospect.

The invention discloses an aged feed for plant breeding of penaeus vannamei and a processing method of the aged feed. The formula of the aged feed consists of the raw materials of fish meal, soybean meal, fermented soybean meal, chicken meat powder, flour, peanut meal, soybean lecithin powder, fish oil, soybean oil 1, calcium dihydrogen phosphate, a mineral mixture, a vitamin mixture, a mildewproof agent, an antioxidant, squid paste and a functional compound, wherein the functional compound adopts the formula of beta-glucan, yeast nucleotide, vitamin C and astaxanthin. According to the aged feed for plant breeding of penaeus vannamei and the processing method disclosed by the invention, the ageing degree of the processed aged feed is greater than 95%, the water stability is guaranteed, pollution caused by dissolving losses of the feed and the discharge of nitrogen and phosphorus to water bodies is reduced, the stability of the feed in water is good, the nutrition is balanced, the autoimmunity and the stress resistance are high, the accumulation quantity of the astaxanthin is large, and the phenomenon that shrimp bodies become blue seldom occurs.

The invention discloses a penaeus vannamei phagostimulant. The penaeus vannamei phagostimulant comprises following components in parts by weight: 10-15 parts of glycine betaine, 6-8 parts of taurine, 2-3 parts of nucleotide, 10-15 parts of alanine, 10-15 parts of glycine, 3-5 parts of smoked plums,1-4 parts of spina date seeds, 2-6 parts of mints and 3-6 parts of rhizoma kaempferiae. According to the penaeus vannamei phagostimulant, the phagostimulant which is 0.05%-2% of the weight of penaeus vannamei compound feeds is added into the penaeus vannamei compound feeds so as to cover bad smell in the compound feeds and stimulate sensory organs of penaeus vannamei to promote the penaeus vannamei to ingest and accelerate the growth; furthermore, the phagostimulant is used for inducing the penaeus vannamei to ingest so as to reduce residual feeds in a water body, increase the utilization rate of the feeds and alleviate secondary pollution to the water by the residual feeds, and furthermore, disease risks of the penaeus vannamei are reduced and the survival rate of the penaeus vannamei is increased.

The invention discloses a making method of preconditioned shelled Penaeus vannamei Boone. The method comprises the following steps: removing heads, shells and digestive tracts from fresh Penaeus vannamei Boone, and washing and draining the Penaeus vannamei, or unfreezing frozen shelled Penaeus vannamei Boone at room temperature to obtain unfrozen shelled Penaeus vannamei Boone for later use; preparing a preconditioning preserving liquid; uniformly mixing the shelled Penaeus vannamei Boone with the preserving liquid; placing the obtained shelled Penaeus vannamei Boone and preserving liquid mixture in a vacuum rolling machine, and rolling the mixture; taking out the rolled shelled Penaeus vannamei Boone, and carrying out vacuum packaging; and carrying out freezing storage or refrigeration on the packaged shelled Penaeus vannamei Boone. Food grade components contained in the preconditioning preserving liquid can effectively inhibit tissue protease and microorganisms of the shelled Penaeus vannamei Boone in the processing process and prevent proteolysis and microbial propagation induced quality reduction, and the rolling preserving increases the muscle elasticity of the shelled Penaeus vannamei Boone and increases the preserving efficiency.

The invention relates to ecological feed for factory-cultivated Penaeus vannamei. The feed comprises, by weight, 60 to 70% of a protein source raw material, 6 to 9% of a fat source raw material, 20 to25% of a carbohydrate raw material, 1.0 to 3.0% of vitamins, 1.0 to 3.0% of a mineral salt, 0.1 to 0.2% of an antioxidant, 0.1 to 0.2% of ecdysone and 0.05 to 0.1% of an anti-stress substance. The ecological feed for factory-cultivated Penaeus vannamei ensures the normal growth of Penaeus vannamei, significantly increases the survival rate and weight gain rate of Penaeus vannamei, improves the anti-stress ability and disease resistance of Penaeus vannamei, solves the serious problems of over high nitrogen and phosphorus content and environmental pollution in Penaeus vannamei cultivation, significantly reduces nitrogen and phosphorus discharge of aquaculture water and has good ecological benefits.

The invention discloses a method for breeding Litopenaeus Vannamei twice a year. The method include the steps that in the first-time breeding, young Litopenaeus Vannamei larvae 0.3 cm-0.4 cm in size are purchased and enter a larva breeding greenhouse to carry out desalting temporary breeding, the larvae are thrown into a Litopenaeus Vannamei pond after 25 days when the sizes of the larvae range from 1.5 cm to 2 cm, and the external water temperature reaches 18 DEG C, and the released density properly ranges from 38,000 larvae per mu to 40,000 larvae per mu; in the second-time breeding, desalting temporary breeding is carried out on Litopenaeus Vannamei larvae for 7 days-8 days in a several-square-meter holding pond surrounded by nylon cloth at one corner of a water inlet of the Litopenaeus Vannamei pond or in small-mesh net cages sleeved in the large pond, then the larvae are placed into the Litopenaeus Vannamei pond to be bred, the second-time released density ranges from 28,000 larvae per mu to 30,000 larvae per mu, the number of adult Litopenaeus Vannamei ranges from 40 to 45 per cubic meter, the air temperature gradually drops in October, then the water temperature is kept at 16 DEG C through heating pumps in an assisted mode, and the Litopenaeus Vannamei larvae can be harvested when the external water temperature is lower than 6 DEG C-8 DEG C.

The invention discloses health Penaeus vannamei Boone forage. The health Penaeus vannamei Boone forage comprises, by weight, 15-30% of fish meal, 2-10% of meat and bone meal, 2-10% of beer yeast, 3-10% of squid internal organ powder or cuttlefish paste, 10-30% of soybean meal, 5-20% of peanut meal, 10-30% of wheat middling or flour, 1-5% of fish oil, 1-6% of an additive, 0.5-3% of soybean phosphatide and 0.1-2% of citric acid. The health Penaeus vannamei Boone forage obviously improves Penaeus vannamei Boone growth performances, improves oxidation resistance, low oxygen resistance and pathogen (vibrio alginolyticus) infection resistance of Penaeus vannamei Boone, has obvious health care functions, is added with citric acid, does not contain a synthetic anti-oxidant and avoids toxic or side effects produced by the synthetic anti-oxidant.

The invention discloses feed for promoting growth of penaeus vannamei. The feed comprises, by weight, 85-95 parts of main materials, 10-20 parts of fermented tea seed cakes, 5-12 parts of sunflower seed meal, 2-8 parts of chlorella, 5-12 parts of floatingfern, 10-16 parts of corn germ meal, 2-7 parts of vinegar dregs, 0.1-0.2 part of vitamin, 1-2 parts of taurine, 1-3 parts of yeast protein powder, 1-2 parts of astragalus polysaccharides, 1-2 parts of betaine and 3-6 parts of slow-release agents. The feed for promoting growth of the penaeus vannamei is scientific in formula and comprehensive in nutrition, can meet the growth requirement of the penaeus vannamei, can rapidly promote growth of the penaeus vannamei and promote intestinal bacteria balance, so that the penaeus vannamei has strong disease resistance, and pollution to aquaculture water environments is reduced.

The invention belongs to the technical field of aquaculture, and particularly relates to an aquaculture method for increasing the survival rate of penaeus vannamei boone. The aquaculture method includes preparation steps of 1), separately feeding every 100 pieces of penaeus vannamei boone with 0.7-0.9 g of feed A by 3-4 times on a daily basis at aquaculture earlier stages; 2), separately feeding the penaeus vannamei boone with feed B by 3-4 times on a daily basis at aquaculture middle stages; 3), separately feeding the penaeus vannamei boone with conventional special penaeus vannamei boone feed by 3-4 times on a daily basis at aquaculture later stages; carrying out other aquaculture steps according to conventional processes. The daily feeding quantity of the feed B accounts for 4-6% of thetotal weight of the penaeus vannamei boone in each pond. The daily feeding quantity of the conventional special penaeus vannamei boone feed accounts for 3-4% of the total weight of the penaeus vannamei boone in each pond. The aquaculture method has the advantages that traditional Chinese medicine liquid is sprayed to the conventional special penaeus vannamei boone feed at the aquaculture earlierstages and the aquaculture middle stages of the penaeus vannamei boone, synergistic effects can be realized by various raw materials of the traditional Chinese medicine liquid, and accordingly the survival rate of the penaeus vannamei boone can be effectively increased; the raw materials for the traditional Chinese medicine liquid are natural, non-toxic, green and safe, and influence on the palatability of the feed can be prevented.

The invention discloses a penaeus vannamei fry circulation desalination cultivation method. The method comprises the steps of S1, fry selection; S2, first-stage desalination; S3, second-stage desalination; S4, third-stage desalination. According to the penaeus vannamei fry circulation desalination cultivation method, the period of penaeus vannamei desalination can be shortened, and the cost is reduced.

The invention provides a whiteleg shrimp fodder which comprises the following raw materials in parts by weight: 20-30 parts of fermented soybean meal, 4-8 parts of spray-dried blood cells, 4-8 parts of wall-broken yeast, 5-10 parts of steam fish meal, 3-6 parts of shrimp shell powder, 20-30 parts of flour, 3-6 parts of an alga compound, 1-3 parts of monocalcium phosphate, 0.5-1.5 parts of multi-vitamins and 0.5-1.5 parts of a compound mineral substance. The alga compound is prepared by the steps of adding papain and cellulase into asparagus, enteromorpha, gulfweed, nori and undaria pinnatifida, respectively performing enzyme hydrolysis, and then adding lactobacillus and yeast and fermenting. The fodder can enhance the physique of the whiteleg shrimp and can increase the survival rate thereof.

The invention relates to a pelteobagrus vachelli and litopenaeus vannamei mixed breed method. The method includes the following specific steps: selecting pelteobagrus vachelli fry and young litopenaeus vannamei with healthy body and good quality respectively; before conducting mixed breeding, disinfecting a pond and applying a fertilizer; putting 26 million larvae of young litopenaeus vannamei in the pond, breeding for 30-35 days, gradually adding water till the water level is 1.5 m or above, and then putting 0.3 million larvae of pelteobagrus vachelli fry in the pond; inspecting the pond for three times a day, to be specific, in the morning, at noon and in the evening; keeping abreast of water level, water quality and the activity conditions of the pelteobagrus vachelli and the litopenaeus vannamei, and controlling the pH to 8-9 and the dissolved oxygen to 4.5-5 mg / L. According to the pelteobagrus vachelli and litopenaeus vannamei mixed breed method, the pelteobagrus vachelli and litopenaeus vannamei mixed breeding makes the breeding space effectively utilized, also reduces disease outbreaks, and indirectly plays a role in ecological regulation; reasonable delivery time and quantity of the pelteobagrus vachelli and the litopenaeus vannamei ensure the survival rates of the pelteobagrus vachelli and the litopenaeus vannamei, and create greater economic benefits.

The invention relates to a culture method, in particular to a method for culturing penaeus vanmamei in paddy fields. The method is characterized in that organic fertilizers are applied into the paddy fields, so that the content of organic matters in soil can reach approximately 29.2 g / kg<-1>(+ / -0.46), ditches are excavated in the paddy fields, the paddy fields can be in the shapes of double-square combinations, four-square combinations and single squares, and the areas of penaeus vanmamei ditches account for approximately 30% of the total paddy rice areas; water is a foundation for growth of plants at late stages and growth of paddy rice in the paddy fields, accordingly, the safety of the water quality needs to be guaranteed, water harm removal is carried out on all water areas of lands surrounding the paddy fields before rice seedlings are transplanted, and survival environments are guaranteed for the paddy rice; the rice seedlings are transplanted in due time according to development of the seedlings and are transplanted by the aid of rice seedling transplanting machines; the penaeus vanmamei is desalted, the desalted penaeus vanmamei is cultured in fresh water for a period of time, and the penaeus vanmamei is released into the paddy fields after the rice seedlings are transplanted by approximately a week; the penaeus vanmamei can be harvested after being raised for 100 days; the fields are sunned, and the paddy rice can be harvested.

The invention relates to special nutrient powder for penaeus vannamei boone. The nutrient powder is prepared by mixing the following raw materials: magnesium, zinc, copper, cobalt, vitamin A, vitamin D, vitamin E, vitamin B1, vitamin B2, vitamin C, pepsase, tryptase, grease and the balance of wheat middling. Furthermore, the invention provides a preparation method of the nutrient powder. The nutrient powder disclosed by the invention can be used for improving the problems of penaeus vannamei boone feed currently sold on the market that the feed is incomprehensive in nutrition, and is deficient or unreasonable in the dosages of vitamin, mineral elements, enzyme and the like. If the nutrient powder disclosed by the invention is added to normal penaeus vannamei boone feed sold on the market, the survival rate and growth speed of the penaeus vannamei boone are improved, and diseases are reduced.

The invention discloses a processing process of Penaeus vannamei Boone. The processing process comprises the following steps of: selecting materials, washing, salting and sealing, wherein the salting step comprises the following steps of: preparing ingredient liquid according to a formula of 75-85kg of rice wine, 22-27kg of 52-degree white spirit, 500-700g of pericarpium zanthoxyli, 500-600g of anise, 450-550g of cardamom, 500-550g of fructus galangae, 550-650g of medlar, 20g of gastrodia elata, 900-1100g of black cardamom, 15g of vitamin E and 10g of vitamin C; adding 100kg of the washed and dried Penaeus vannamei Boone into the ingredient liquid; closing and placing a container in a shady place; and storing for 8 days and overturning up and down for one time, wherein the Penaeus vannamei Boone can be eaten after twenty days. The processing process of the Penaeus vannamei Boone adopts natural medicinal materials as ingredients and the processing process is carried out at a room temperature; and a shrimp product is easy to preserve and transport. The prepared shrimp product has the advantages of fresh-shrimp-like color, tender meat, delicious taste, rich aroma, fragrance and sweetness and rich nutrition; and the preservation period is 3 days after a package is opened, and the protein loss amount is in 5% when being compared with fresh shrimps.

The invention discloses a fermented soybean meal feed for penaeus vannamei. The fermented soybean meal feed consists of the following raw materials in parts by weight: 60-70 parts of fermented soybean meal, 5-10 parts of fish meal, 10-15 parts of cuttlefish paste, 4-8 parts of mussel powder, 2-5 parts of egg powder, 2-5 parts of yeast powder, 2-5 parts of shrimp shell powder, 3-5 parts of pumpkin powder, 2-3 parts of honey dry powder, 0.5-1 part of calcium peroxide, 0.005-0.008 part of vitamins, 1-2 parts of magnetite powder, 1-1.5 parts of mineral substances and 1-3 parts of an additive. A preparation method of the fermented soybean meal comprises the following steps of inoculating soybean meal with bacillus subtilis, performing aerobic fermentation for 8-10 hours, then performing inoculating with lactobacilli, performing anaerobic fermentation for 2-3 days, soaking fermented products with a glycine solution for 2-3 days, and performing drying so as to obtain the fermented soybean meal. Through the adoption of the fermented soybean meal feed disclosed by the invention, the growth speed and the disease resistance of the penaeus vannamei can be obviously increased.

The invention discloses a high-yield polyculture method of penaeus vannamei and macrobrachium rosenbergii. The method comprises the steps of pond processing, performing desalination on penaeus vannamei sprouts, then performing desalination on macrobrachium rosenbergii sprouts, inputting sprouts, performing feeding management and culturing management, etc. The baits which are fed in culturing according to the method of the invention comprise: a ferment material which is used for breakfasts and lunches of the sprouts and is composed of EM bacteria, milk powder and shrimp material in the inputting early period of the sprouts, a mixture which is composed of steamed and triturated eggs and spirulinas and the uniformly mixed shrimp material as suppers; and forage and ampullaria gigas which are fed every day in the middle and late period in culturing. According to the method of the invention, a biological characteristic is utilized; a polyculture mode of the penaeus vannamei and the macrobrachium rosenbergii is utilized, thereby suppressing incidence rate of diseases, improving disease resistance and survival rate of the shrimps, improving unit-area benefit and promoting benefit of farmers.

The invention discloses a penaeus vannamei phagostimulant. The penaeus vannamei phagostimulant comprises following components in parts by weight: 10-15 parts of glycine betaine, 6-8 parts of taurine, 2-3 parts of nucleotide, 10-15 parts of alanine, 10-15 parts of glycine, 3-5 parts of smoked plums,1-4 parts of spina date seeds, 2-6 parts of mints and 3-6 parts of rhizoma kaempferiae. According to the penaeus vannamei phagostimulant, the phagostimulant which is 0.05%-2% of the weight of penaeus vannamei compound feeds is added into the penaeus vannamei compound feeds so as to cover bad smell in the compound feeds and stimulate sensory organs of penaeus vannamei to promote the penaeus vannamei to ingest and accelerate the growth; furthermore, the phagostimulant is used for inducing the penaeus vannamei to ingest so as to reduce residual feeds in a water body, increase the utilization rate of the feeds and alleviate secondary pollution to the water by the residual feeds, and furthermore, disease risks of the penaeus vannamei are reduced and the survival rate of the penaeus vannamei is increased.

The invention discloses a breeding method capable of increasing the penaeus vannamei yield. The method comprises the following steps of pond arrangement; shrimp fry putting, wherein penaeus vannamei fry with the size ranging from 0.6 cm to 1 cm is selected, 55,000-65,000 fry is put per mu, and after breeding is conducted for 17-19 days, fishes obtained after disinfection treatment are put for mixed breeding; feed management, wherein feed feeding is conducted 2-3 times each day; daily management; shrimp disease prevention, wherein a disinfection reagent and a probiotic preparation are splashedeach month. According to the breeding method capable of increasing the penaeus vannamei yield, the breeding resources are fully utilized, the morbidity of the penaeus vannamei is low, the weight is increased rapidly, the yield is high, the breeding risk is effectively lowered, and the breeding benefit of the penaeus vannamei is increased.

The invention provides a multi-vitamin premix for improving the intestinal health of penaeus vannamei boone. The multi-vitamin premix is characterized in that vitamins serve as main components, the Chinese herbal medicines are compounded for synergy, and the vitamins are reasonably compounded for the problem that the intestinal health is caused to the penaeus vannamei boone in the culture process due to factors such as feed environment and the like; proven by test, the incidence rate of intestinal diseases of the penaeus vannamei boone can be obviously reduced, the survival rate of culture can be increased and the culture income can be improved.

The invention discloses fermented brewer's grain feed for Litopenaeus vannamei. The fermented brewer's grain feed comprises raw materials in parts by weight as follows: 50-60 parts of fermented brewer's grains, 5-10 parts of fish meal, 10-15 parts of cuttlefish paste, 4-8 parts of clam meat powder, 2-5 parts of egg powder, 2-5 parts of yeast powder, 2-5 parts of shrimp shell meal, 3-5 parts of pumpkin powder, 2-3 parts of dry honey powder, 0.5-1 part of calcium peroxide, 0.005-0.008 parts of vitamins, 1-2 parts of magnet powder, 1-1.5 parts of minerals and 1-3 parts of an additive. A preparation method of the fermented brewer's grains comprises the following steps: brewer's grains are smashed, soaked in a hydrogen peroxide solution for 3-5 h, inoculated with Trichoderma viride for aerobic fermentation for 1-2 days and inoculated with photosynthetic bacteria for anaerobic fermentation for 3-6 days, then a fermented product is soaked in a glycine solution for 2-3 days and dried, and the fermented brewer's grains are obtained. By means of the fermented brewer's grain feed, the growth speed of the Litopenaeus vannamei can be increased obviously, and the diseases resistance of the Litopenaeus vannamei can be improved obviously.

The invention discloses a penaeus vanmamei-fermented peanut meal feed which is prepared from the following raw materials in parts by weight: 65-75 parts of fermented peanut meal, 5-10 parts of fish meal, 10-15 parts of squid paste, 4-8 parts of jaggal clam meat powder, 2-5 parts of egg powder, 2-5 parts of yeast powder, 2-5 parts of shrimp shell meal, 3-5 parts of pumpkin powder, 2-3 parts of honey powder, 0.5-1 part of calcium peroxide, 0.005-0.008 part of vitamin, 1-2 parts of magnet powder,1-1.5 parts of a mineral substance and 1-3 parts of an additive; a preparation method of the fermented peanut meal comprises the steps of inoculating photosynthetic bacteria into the peanut meal for anaerobic fermentation for 7-10d; soaking a fermention product by using a glycine solution for 2-3d, drying to obtain the fermented peanut meal. The penaeus vanmamei-fermented peanut meal feed is capable of obviously improving the growth rate and the disease resistance of penaeus vanmamei.

The invention discloses a breeding feed for penaeus vannamei. The breeding feed comprises the following components in parts by weight: 7-15 parts of fish meal, 0.8-1.2 parts of fish oil, 5-10 parts of fish meat mash, 1-3 parts of cuttlefish paste, 14-28 parts of soybean meal, 6-12 parts of peanut meal, 10-15 parts of rapeseed meal, 1-2 parts of a Chinese herbal medicine additive, 0.5-1.5 parts of vegetable oil, 0.5-1 part of calcium hydrogen phosphate, 0.001-0.003 part of erucylamide, 0.2-0.5 part of guaiacol, 0.5-1.5 parts of yeast powder, 1-2 parts of photosynthetic bacteria, 0.5-1 part of bacillus, 2-4 parts of brown sugar, 2-4 parts of a phagostimulant, 0.5-2 parts of humic acid, and 1-1.5 parts of an antioxidant. The breeding feed disclosed by the invention has the beneficial effects that in accordance with configuration of nutrient substances required by growth of the penaeus vannamei, the breeding feed is reasonable in nutrient structure, obvious in effect of promoting growth, and shortened in the breeding cycle. The immunity of the penaeus vannamei can be improved, and the prevalence rate of the penaeus vannamei can be reduced.

The invention discloses a formula of a penaeus vannamei feed. The penaeus vannamei feed consists of the following raw materials in parts by weight: 200-240 parts of 46% soybean meal, 180-220 parts of flour, 160-200 parts of peanut bran, 80-120 parts of imported fish meal, 110-150 parts of domestic fish meal, 20-40 parts of phosphoric acid oil meal, 30-70 parts of chicken meat powder, 10-20 parts of calcium dihydrogen phosphate, 10-30 parts of bentonite, 10-30 parts of a 2% shrimp compound premix, 10-30 parts of cuttlefish liver meal, 10-15 parts of fish oil, 1-3 parts of choline, 1-3 parts of an 60% antioxidant and 4-8 parts of a propanoic acid mildewproof agent. Compared with the prior art, the penaeus vannamei feed disclosed by the invention has the advantages that a material compounding manner of combining animal protein with vegetable protein is adopted, so that the cost can be reduced, the penaeus vannamei feed is resistant to soak, capable of sinking to the bottom, and soft rather than scattered, and nutrient substances are not liable to lose.

The invention discloses a nutrient feed for penaeus vannamei. The nutrient feed comprises raw materials of fish meal, fermented soybean meal, puffed corn flour, selenium-enriched yeast, sweet potato starch, pregelatinized starch, attapulgite clay powder, composite vitamins, oligosaccharide, mannan oligosaccharides, licorice roots, heartleaf houttuynia herbs, fructus forsythiae, plant oil, calciumgluconate and biological calcium carbonate. The nutrient feed for penaeus vannamei provided by the invention is reasonable in compounding ratio, rich and balanced in nutrition and high in feed utilization rate; and the penaeus vannamei is quick in growth and development, low in morbidity and good in meat quality, and the breeding economic benefits of the penaeus vannamei are effectively increased.

The invention discloses a directional mating method for Penaeus vannamei Boone. The method includes the steps that parent prawns are selected and subjected to nutrient enrichment cultivation, a mating scheme is set, male prawns are ripened and independently cultivated, female prawns are ripened and independently cultivated, directional mating parent prawns are selected and subjected to directional mating, and spawning and fertilization are performed. The method is designed according to the life habits and the mating, fertilization and spawning characteristics of the Penaeus vannamei Boone, and possible injuries to the male prawns and the female prawns in the artificial fertilization process can be avoided. In the whole mating process, it is only needed to determine the serial numbers of the parent prawns for mating, operation is convenient and easy, and the genealogical relationship of established families can be accurately established. The genetic relationship of the individuals of the families is determined, the mating scheme is designed artificially, and inbreeding depression of the established families can be effectively avoided. The method has the advantages of being high in success rate and low in parent prawn loss, and overcomes the defects that in the prior art, when Penaeus vannamei Boone families are established in an artificial fertilization mode, spermatophore is prone to falling off, the fertilization rate is low, and half sibs cannot be established easily.