248 results about "River prawn" patented technology

The invention provides an industrialization cultivation method for shrimp seed of macrobrachium rosenbergii. The method comprises: selection and processing of parent shrimp temporary breeding pool, selection of parent shrimp, breeding pretreatment of the parent shrimp, breeding of the parent shrimp, meeting of shrimp seed cultivation pool requirements, processing of water quality in the shrimp seed cultivation pool, observation of parent shrimp copulate, larva cultivation, daily management of the shrimp seed cultivation pool, and the like. A Chinese herbal medicine pulvis bactericide is adopted to process water source during the water quality treatment. The method provided in the invention reduces incidence of disease of the parent shrimp and the larva, and the method is green and environmentally friendly. Individual difference of the shrimp seed cultivated by adopting the method provided in the invention is small, and the quality is good. The method greatly improves survival rate of the shrimp seed and improves economic benefits of farmers.

The invention discloses a low-fish meal compound feed for macrobrachium rosenbergii and a preparation method thereof, wherein the compound feed is characterized by consisting of the following components in parts by weight: 15 to 20 parts of fish meal, 10 to 30 parts of soybean meal, 8 to 12 parts of chicken meal, 6 to 10 parts of corn gluten meal, 5 to 15 parts of fermented soybean meal, 5 to 15 parts of peanut meal, 3 to 5 parts of cerevisiae fermentum, 3 to 5 parts of shrimp shell powder, 3 to 5 parts of squid liver powder, 1.5 to 2 parts of fish oil, 1 to 2 parts of bean oil, 1.5 to 2 parts of soybean lecithin, 10 to 25 parts of flour, 0.2 to 0.5 parts of vitamin mixture and 0.5 to 1 part of mineral mixture; the preparation method comprises the steps of: mixing the above components; modifying quality of the mixture under certain steam pressure, humidity and temperature; curing the quality-modified mixture under certain temperature and pressure, and finally extruding the mixture to the feed with the particle diameter ranging from 1 to 4mm. The feed has the advantages of small using amount of the fish meal, low feed cost and simultaneously enhancing the digestibility of macrobrachium rosenbergii.

The invention provides an environment-friendly river prawn culture method. The environment-friendly river prawn culture method includes the steps of 1) building a pond; 2) selecting young prawns; 3) carrying out water treatment before young prawn releasing; 4) fertilizing and culturing baits; 5) releasing the young prawns; 6) conducting bait casting management; 7) conducting water transfer management. The environment-friendly river prawn culture method has the advantages that different traditional Chinese medicine additives are added from a first stage to a third stage according to the growth characteristics of the prawns during bait casting management, immunity can be enhanced at the first stage to prevent various diseases and increase the survival rate in the young prawn period, the traditional Chinese medicine additives added at the second stage play a direct role in antibacterial and antiviral effects and killing pests so as to increase the survival rate, and the traditional Chinese medicine additives added at the third stage are capable of improving the water quality and freshening the prawns.

The invention provides an ecological young shrimp culture method for macrobrachium rosenbergii. The method includes the steps of preparing a young shrimp culture pond, preparing water used for young shrimp culture, obtaining young shrimp larvas, feeding bait, managing water quality, transferring the young shrimps to another pond, desalting for young shrimp emergence and the like. In the bait feeding process, the young shrimps are fed on natural bait unit cell algae, fairy shrimp nauplii and artificial bait egg custard, the natural bait is environmentally friendly and healthy, the articical bait is rich in nourishment, and nutritional ingredients are not prone to running off; when the water quality is managed, nuisanceless water quality ameliorant and microbial preparations are adopted to adjust the water quality. Hormones and poisonous chemicals are not used in the young shrimp culture process, the young shrimps are high in survival rate and grow healthily and strongly, young shrimp emergence is fast, and the ecological young shrimp culture method is low in cost, high in efficiency and capable of effectively increasing economic benefits of an aquaculture farm.

The invention relates to the technical field of aquaculture, and in particular relates to a macrobrachium rosenbergii feed comprising traditional Chinese medicine components. The feed is prepared from the following raw materials in parts by weight: 12-15 parts of wheat bran, 10-12 parts of peanut straws, 15-18 parts of tomato seed meal, 20-25 parts of corn, 10-12 parts of wheat middling, 5-8 parts of cooked rice, 2-3 parts of Clanis bilineata powder, 1-2 parts of goat blood powder, 2-3 parts of shrimp shell meal, 2-3 parts of fly maggot powder, 1-2 parts of mountain flour, 4-5 parts of chlorella powder, 5-6 parts of sagittaria sagittifolia, 0.2-0.5 part of codonopsis pilosula, 0.2-0.5 part of poria cocos, 0.2-0.5 part of curcuma zedoary, 0.2-0.3 part of polygonum multiflorum, 0.2-0.5 part of radix paeoniae alba, a proper amount of salt and 4-5 parts of phagostimulant. The feed provided by the invention is rich in multiple high-quality protein raw materials, and can prompt growth and development of macrobrachium rosenbergii; due to adoption of the active components in the traditional Chinese medicine components such as codonopsis pilosula, poria cocos, curcuma zedoary, polygonum multiflorum and radix paeoniae alba, the immunity of the macrobrachium rosenbergii can be effectively improved; the macrobrachium rosenbergii fed with the feed grow rapidly, the weight is remarkably increased, the morbidity can be effectively reduced, and no medicine residue problem is caused as the raw materials are all pure natural green raw materials.

The invention discloses a method for alternately breeding South America white shrimps and giant freshwater prawns for three batches in a pond greenhouse. The method comprises the steps of building the pond greenhouse, cleaning and sterilizing the pond greenhouse, breeding the South America white shrimps and the giant freshwater prawns in a small shed, arranging offspring throwing time of the three batches, throwing fodder, managing water quality, supplementing oxygen in a combination mode, preventing and controlling diseases, and fishing the South America white shrimps and giant freshwater prawns of the three batches. The method is characterized in that the small shed is built in the greenhouse, and the offsprings are thrown to a pond after being bred in the small shed in a storing mode; the offsprings of the South America white shrimps of the first batch are thrown from March 18th to March 22nd, the offsprings of the South America white shrimps of the second batch are thrown from July 1st to July 6th, and the offsprings of the giant freshwater prawns of the third batch are thrown from October 20th to October 22nd; the first fishing time of the South America white shrimps of the first batch starts from May 20th to May 25th, and the last fishing time of the South America white shrimps of the first batch and pond clearing start from June 10th to June 20th; the first fishing time of the South America white shrimps of the second batch starts from October 5th to October 10th, and the last fishing time of the South America white shrimps of the second batch and pond clearing start from October 18th to October 20th; the first fishing time of the giant freshwater prawns of the third batch starts from November 18th to November 20th, and the last fishing time of the giant freshwater prawns of the third batch and pond clearing start from December 18th to December 25th.

The invention discloses an enclosure intercultural mode and an aquaculture method thereof. River crabs in a lake enclosure serve as the main aquaculture variety, and meanwhile, tropical fresh water Macrobrachium rosenbergii, Macrobrachium nipponensis, Odontobutis obscurus and Siniperca chuatsi are intercultured, wherein the Macrobrachium nipponensis, the Odontobutis obscurus and the Siniperca chuatsi are commonly seen in lakes. According to the intercultural mode, feedstuff can be fully utilized, pollution caused by river crab aquaculture is reduced, aquaculture benefits are improved, and the intercultural mode is environmentally friendly and efficient.

The invention discloses a preparation method of feed for a snakehead. The feed comprises tadpole powder, earthworm powder, loach powder, river prawn powder, grass carp powder, crucian carp powder, soybean cake powder, salt, trash fish powder and bone powder; and the percentage is a weight percentage. The formula is prepared by adopting various materials; the proportion of all nutrition materials in the feed is moderate; and the requirements of the snakehead on fat, carbohydrate, crude fiber and mineral substances in the feed can all be met, so that purposes of the feed are achieved. The fish feed prepared by the formula is good in palatability, and can be absorbed rapidly and digested easily; the growth speed of the snakehead is high; the effects of the feed on the fingerling and adult snakehead feeding are good; the snakehead fed by the feed is large and heavy in weight; the morbidity of the snakehead is very low; and the feed is suitable for the feeding in various environments.

The invention aims to provide a method for sex induction of hermaphrodite shrimps. According to the method, a target gene in macrobrachium is silenced by using an RNA interference technology to realize sex induction of macrobrachium rosenbergii, wherein the nucleotide sequence of the target gene is SEQ ID NO:1. By virtue of the induction technology provided by the invention, a macrobrachium individual has sex reversion and becomes hermaphrodite macrobrachium rosenbergii, and the developments of a female reproductive system and a male reproductive system are realized in the body of the hermaphrodite macrobrachium rosenbergii, so that a set of effective macrobrachium rosenbergii sex induction technology is established. Meanwhile, by using the hermaphrodite shrimps cultured by the method provided by the invention, a good scientific research material and an animal sample can be provided for sex determination, sex differentiation and researches on reproduction and fertilization of shrimps and crabs.

The invention discloses a giant freshwater prawn breeding method and belongs to the technical field of breeding of aquatic organisms such as shrimps in agricultural aquaculture. Giant freshwater prawns with a certain density are bred in a pond with certain specifications; fishes are put into the pond at proper time for mixed breeding; feeding and management of water quality and disease control are carried out during breeding and the whole giant freshwater prawn breeding method can be comprehensively and effectively controlled. The method is simple to operate, low in cost and has remarkable effect, obvious economic benefits and social benefits.

The present invention provides a macrobrachium rosenbergii disease preventing Chinese herbal medicine feed and a processing method thereof. The macrobrachium rosenbergii disease preventing Chinese herbal medicine feed consists of the following raw materials in parts by weight: fish meal 60-80 parts, peanut meal 5-12 parts, rice bran 1-5 parts, wheat flour 1-5 parts, brewer's yeast 2-5 parts, soybean oil 1-2 parts, blood meal 2-3 parts, eupatorium lindleyanum 0.1-0.2 part, heartleaf houttuynia herbs 0.2-0.3 part, herba artemisiae apiaceae 1-2 parts, berberine 0.05-0.1 part, eucommia bark powder 0.05-0.08 part, andrographis paniculata 0.02-0.05 part, multivitamin 0.5-1 part, mineral premix 0.1-0.5 part, fish oil 1-2 parts, shell powder 1-2 parts, amino acids 1-2 parts, squid powder 1-2 parts and silkworm chrysalis 2-6 parts. The feed is good in palatability, is digestible and absorbed, promotes fish and shrimp growth, and improves immunity.

The invention relates to a method for processing a macrobrachium rosenbergii spicy frozen prepared instant product. The method comprises the following steps of: soaking fresh macrobrachium rosenbergii in aqueous solution containing salt and citric acid, and washing off dirt by using clean water; removing dead shrimps from the washed macrobrachium rosenbergii, and selecting the macrobrachium rosenbergii of certain weight as a raw material; frying the selected raw material in palm oil and rapidly cooling, or steaming the selected raw material, and rapidly cooling; placing the adequate macrobrachium rosenbergii into a dish in a multi-layer, double-row and opposite chelae mode, and sleeving into a packaging bag; pouring preprocessed seasoning soup bases into a flat tray filled with shrimp bodies, and sealing the packaging bag; and vacuumizing the packaging bag filled with the macrobrachium rosenbergii, and freezing and preserving. The method is simple and practical, and can be implemented in various ways, and the prepared product has a complete shape, flavors of oil and shrimps, and rich and various tastes. The method provides a new way for scale industrial production and value increment of deep processing of the macrobrachium rosenbergii product.

The invention discloses a culturing method for odontobutis obscuras, comprising the following steps of: arranging a fishpond: selecting a pond, arranging a fish nest in the pond, and cleaning and sterilizing the fishpond by using quick lime or bleaching powder; putting fish fries into the fishpond: putting preliminarily acclimated and cultured fish fires of odontobutis obscuras into the fishpond, and meanwhile, and putting river prawn, spotted silver carps and silver carps into the fishpond to carry out mixed culture; and breeding: breeding by using feeds with the protein contents of 35-40% for 10 months to obtain the odontobutis obscuras. By using the method provided by the invention, the culturing survival rate of the odontobutis obscuras is increased; in addition, the fish fries are bred by using a pellet feed, so that the culturing cost is reduced, the income of an aquatic product culturing farmer is increased, and the industrial development prospect of the odontobutis obscuras is wide.

The invention discloses a larval macrobrachium rosenbergii micro-pellet feed and a preparation method of the larval macrobrachium rosenbergii micro-pellet feed. Nutritious components of the feed comprise crude protein, crude fat, sugar, crude fibre, ash, salt, phosphorus, water and the like. The feed has the advantages of increasing the survival rate of macrobrachium rosenbergii, accelerating the growth speed of macrobrachium rosenbergii, fast feeding, high stability, convenient use, little environmental pollution and the like. Therefore, healthy development of the industry of larval macrobrachium rosenbergii production and feeding can be promoted.

The invention relates to the technical field of aquaculture, and in particular relates to a breeding and culture method for all-male macrobrachium rosenbergii. According to the breeding and culture method provided by the invention, different feed is thrown according to the growth needs of the macrobrachium rosenbergii in different reproduction stages, so that maturation of parent pseudo-female macrobrachium rosenbergii is promoted, and the reproduction cycle is effectively shortened; the survival rate of young all-male macrobrachium rosenbergii is improved, and large-number of young all-male macrobrachium rosenbergii is obtained; and besides, the content of selenium in macrobrachium rosenbergii meat is improved, and the nutrient quality of the macrobrachium rosenbergii is promoted.

The invention relates to a method for improving the survival rate of commodity shrimps of macrobrachium rosenbergii during long-distance transportation. The method comprises the following steps of: adding vitamin C into water for transportation in a transportation box and a spare box, wherein 50-100g of the vitamin C is correspondingly added in each ton of the water for transportation; regulating the pH of the water for transportation to 7.0-7.5, and controlling the water temperature of the water for transportation at 12-18 DEG C; and immersing a shrimp collection box in the water for transportation in the transportation box, transporting, using an oxygen increasing device to increase oxygen in the water for transportation during transportation, controlling the oxygen content in the water for transportation at 5-7mg / L, and draining sewage at the box bottom of the transportation box and supplementing spare water for transportation from the spare box to the transportation box every 2-3 hours after the start of the transportation. According to the method disclosed by the invention, the survival rate of the commodity shrimps of the macrobrachium rosenbergii during the long-distance transportation can be greatly improved, the method is simple and easy to operate, and the macrobrachium rosenbergii after the transportation according to the method is harmless to a human body after being taken by a person.

The invention discloses a feed additive used for macrobrachium rosenbergii. The feed additive comprises the following components in percentage by weight: 10 to 20 percent of potassium chloride, 20 to 40 percent of magnesium sulfate, 5 to 10 percent of sodium bicarbonate, 1 to 5 percent of methionine chromium, 10 to 34 percent of wild jujube powder and 30 to 40 percent of glucose. The feed additive can obviously reduce the sporadic death frequency of the macrobrachium rosenbergii after seine and improve the breeding survival rate of the macrobrachium rosenbergii, and has positive realistic significance.

The invention discloses a high-flux quick screening method of Macrobrachium rosenbergii immunopotentiators. The method comprises the following steps: treatment of immunopotentiators to be screened, acquisition and culture of Macrobrachium rosenbergii haemolymph cells, and detection and analysis of Macrobrachium rosenbergii nonspecific immunity indexes. The method can be used for in-vitro quick high-flux screening of the Macrobrachium rosenbergii immunopotentiators.

The invention relates to a compound feed for Macrobrachium rosenbergii, which comprises the following compositions: 46 percent CP bean meal, imported steam fish meal, peanut meal, squid paste, yeast extract, rapeseed meal, beer yeast, monocalcium phosphate, 60 percent CP corn protein powder, Tanimoto powder, special powder, shrimp multi-vitamin, shrimp multi-mineral, phosphoglyceride, imported fish oil, zeolite powder and mildewcide. The compound feed for Macrobrachium rosenbergii has the following advantages that: (1) a scientific formula and comprehensive nutrition: the superior beam meal, rapeseed meal, peanut meal, corn protein powder, special powder and other main materials are adopted and scientifically matched with shrimp multi-vitamin, mineral and other added compositions, besides the abundant energy compositions, the feed also contains abundant protein, amino acid and various nutritional compositions and can meet the nutritional and growing requirements of Macrobrachium rosenbergii, and the feed can also allow Macrobrachium rosenbergii to rapidly grow and have strong disease resistance; and (2) low cost: the bean meal, the rapeseed meal, the peanut meal and the like are used as main materials and greatly reduce the product cost.

The invention discloses an LAMP detection kit and an LAMP detection method for macrobrachium rosenbergii bicistronic virus, which belongs to the technical field of target DNA segments. The detection kit comprises an RNA extraction reagent and a reverse transcription (RT)-LAMP reaction reagent. The detection method comprises: 1) extracting RNA of macrobrachium rosenbergii; 2) performing the RT-LAMP amplification of the macrobrachium rosenbergii bicistronic virus; and 3) performing color developing detection. The detection kit has high specificity and sensitivity, the detection method is convenient, sensitive, accurate and quick, and thus, a foundation is laid for the prevention of syndrome in larvae of macrobrachium rosenbergii.

The invention discloses a method for processing and recycling aquaculture water in an intensive culture pond, which comprises the following steps: (1) performing oxygenation measures, and then gathering pollutants in a central sewage draining exit; (2) arranging a discharge pipe at the central sewage draining exit, wherein the discharge pipe is communicated with a gate of a drainage sluice; (3) pumping sewage in the pond from a pump pipeline by using pumping equipment; (4) separating the sewage by a foam separator; and (5) dealing with pathogens in the obtained clean water by an ozone generator and then discharging the clean water to the pond for recycling, collecting the obtained sewage and then carrying out biochemical treatment on the sewage, after the sewage is up to the standard, discharging the sewage. In the intensive culture pond implementing the technology of the invention, the aquaculture water consumption can be reduced by 70 to 80 percent, the sewage discharge is reduced, the environmental pollution is alleviated, and the aquaculture output is raised; and meanwhile, the method of the invention is beneficial for cutting off the horizontal transmission route of the pathogens, and can be used for processing and recycling the water in the intensive culture ponds for culturing the economic aquatic species such as fishes, prawns, macrobrachium rosenbergii and crabs, and the like in the process of cultivation, therefore, the method is helpful for the healthy and sustainable development of the aquaculture industry, and has high use value.

The invention discloses a low-fish-meal macrobrachium rosenbergii mixed feed formula which comprises the following components in parts by mass: 25 parts of fish meal, 6 parts of shrimp shell powder, 4 parts of cuttlefish paste, 30 parts of bean pulp, 8 parts of peanut meal, 20 parts of wheat powder, 2.8 parts of animal oil, 2.2 parts of monocalcium phosphate, 1 part of zeolite powder and 1 part of premix. With the low-fish-meal macrobrachium rosenbergii mixed feed formula, the difficulty in replacing fish meal by vegetable protein parts during feed production is solved; the production cost is reduced; raw materials are convenient to purchase; and the economical benefit is obvious. In a production process, 0.4 kilogram of methionine is filled into each tonnage of feed, so that the adaptability of macrobrachium rosenbergii is guaranteed; furthermore, by the advanced production technology and advanced equipment, a series of problems of high difficulty in granulation under the action of coarse fibers, low curing effect and the like are solved; the gelatinization degree of a product is improved; and the digestion absorption rate of the macrobrachium rosenbergii is guaranteed.

The invention discloses a method for feeding wild catfish and carp living in Yellow River in ecosystem environment. The method comprises the following steps: injecting Yellow River water into common earth, crushing planted fodder grass; adding a composite micro-ecological viable bacteria preparation into the crushed fodder grass; adopting a closed anaerobic fermentation process to prepare a yeast material; scattering the yeast material once every ten days so as to provide nutrient components required by the growth of beneficial alga and plankton unicellular organisms to feed and breed daphnia, algae and float grass, and to feed wild trash fish fries and river prawns; and using Yellow River circulating water and living food to feed the wild catfish and carp. The method uses natural ecological resources to develop natural Yellow River wild fishes for breeding, forms a complete a natural food chain, and maintains natural quality of Yellow River fishes. The method is applied to both coasts of Yellow River valley, utilizes natural resources to develop wild fish ecological feeding in large scale, and provides a novel approach for developing domestic food resources.

The invention discloses an anti-stress enhancer for macrobrachium rosenbergii and application thereof. The anti-stress enhancer is characterized by being prepared from the following components in parts by weight: 5-10 parts of yeast nucleotide, 5-10 parts of astaxanthin, 5-10 parts of chitosan, 15-20 parts of fructooligosaccharide, 15-20 parts of mannan oligosaccharide, 10-15 parts of chitosan-zinc, 5-10 parts of vitamin C, 10-15 parts of saccharicterpenin, 5-10 parts of uncaria rhynchophylla and 5-10 parts of rhizoma corydalis. 0.03-0.05 percent by mass of the anti-stress enhancer is added in formula feed. The anti-stress enhancer has the advantages that only 0.03-0.05 percent by mass of the anti-stress enhancer is added into formula feed, the survival rate of macrobrachium rosenbergii can be increased by 10.83-30.13 percent, the weight gain rate can be increased by 168.32-357.89 percent, and the survival rate is increased by about 30 percent under an environmental stress condition.

The invention relates to a scatophagus argus and macrobrachium rosenbergii intercropping overwintering mode. The scatophagus argus and macrobrachium rosenbergii intercropping overwintering mode adopts a macrobrachium rosenbergii overwintering pond and is characterized in that scatophagus argus is intercropped in the pond; before stocking, the interior of the pond is washed and cleaned; an inflation head is placed in the pond for continuously inflating, effective water level is 1m, and a transparent plastic film covers the entrance of the pond; fresh water is adopted, subjected to primary precipitation by virtue of the pond and secondary precipitation by virtue of a reservoir and preheated and then is applied in the pond; a circular heating hot water pipe is also paved at the bottom of the overwintering pond, a water inlet pipe in the pond is sheathed by a 60-mesh bolting silk mesh for filtering, water is changed every 7-10 days, water changing temperature difference is controlled to be + / -1 DEG C, temperature is controlled to be 20-22 DEG C and synchronously raised at a rate of 0.5 DEG C per day before breeding of macrobrachium rosenbergii, the temperature is stabilized for 15-20 days when the temperature is raised to 25 DEG C, and then the temperature is raised for a second time until the temperature is raised to 29 DEG C; the pond is reversed once every month; bait is thrown once in the morning and evening respectively, compound bait is adopted for feeding in the morning, fresh and alive trash fish meat paste or snail meat is used for feeding in the evening, and a scatophagus argus extruded feed is supplemented; and pollution is absorbed once everyday, and water quality indexes comprise that dissolved oxygen is more than 5mg / L and pH value is 7.5-8.5.

The invention discloses a siRNA-IR sequence for sex reversal of male macrobrachium rosenbergii and application of the siRNA-IR sequence. Expression of an IR gene is inhibited by a siRNA interference technology to promote sex reversal of the male macrobrachium rosenbergii to obtain neo-females. IR gene fragments of macrobrachium rosenbergii are screened and obtained from macrobrachium rosenbergii transcriptome, and the siRNA is designed and synthesized according to a macrobrachium rosenbergii IR gene sequence, named siRNA-IR. The siRNA-IR is transformed into macrobrachium rosenbergii by a microscopic injection method before a sex differentiation stage to interfere and inhibit expression of the IR gene in the macrobrachium rosenbergii and promote sex interversal of the macrobrachium rosenbergii. Compared with a dsRNA interference technology, the siRNA technology has smaller injection dosage, and can reduce the cost, effectively reduce immunological stress reactions of post-larvae of themacrobrachium rosenbergii and increase the survival rate of neo-females.

Provided are an LAMP (loop-mediated isothermal amplification) detection kit for macrobrachium rosenbergii nudivirus and a detection method thereof. The invention belongs to the technical field of DNA fragment detection. The LAMP detection kit comprises a viral DNA extraction reagent and an LAMP reaction reagent. The LAMP reaction reagent contains an LAMP amplification-used nucleic acid primer group for detecting the macrobrachium rosenbergii nudivirus. The primer group contains a primer of MRNuV-FIP, a primer of MRNuV-BIP, a primer of MRNuV-F3, a primer of MRNuV-B3, a primer of MRNuV-LF and a primer of MRNuV-LB. The kit of the invention is high in specificity and sensitivity. The LAMP detection method for macrobrachium rosenbergii nudivirus makes use of the kit, and is convenient, sensitive, accurate and rapid.

The present invention discloses a macrobrachium rosenbergii compound feed, which comprises the following components: fish meal, soybean meal, soy protein powder, brewer's yeast powder, squid paste, flour, cottonseed meal, fish oil, a shrimp and crab premix, betaine, choline, and calcium phosphate, wherein a weight ratio of the components is sequentially 28-33:12-18:10-18:3-7:1-4:20-25:3-8:0.8-1.2:1.5-2.5:0.3-0.8:0.3-0.8:1.5-2.5. With the present invention, digestion and absorption capacities of aquatic products are increased, waste is reduced, bait feed utilization rate is improved, effects of various nutrients can be provided at a maximum, and a good ecological environment is provided for aquatic products.

The invention discloses a method for efficient alternate aquaculture of macrobrachium rosenbergii and lobsters, and belongs to the technical field of aquaculture. The method comprises the following steps: (1) desilting and insolating a pond, and disinfecting the pond with calcined lime; (2) planting June dry grasses and waterweeds; (3) stocking lobster seedlings, spotted silver carps, silver carps, green loaches and macrobrachium rosenbergii seedlings; (4) feeding a compound feed or feeding a mixture of the compound feed and other vegetative and animal feeds; (5) keeping the pH value of pond water at 7.5 to 8.5 to enable the dissolved oxygen content in the pond to be not less than 4 mg / L, and controlling the transparency at 30 to 40 cm; (6) catching the macrobrachium rosenbergii and the lobsters. The method fully considers the temperature condition and the growth characteristics and the aquaculture characteristics of the macrobrachium rosenbergii and the lobsters, and the adopted aquaculture mode and the technology design are reasonable; aquaculture resources are effectively used, the utilization rate of the pond is increased, and the economic benefits of farmers are obviously increased; by multi-species aquaculture and reasonable arrangement of crop rotation, the capacity of the farmers for resisting the aquaculture risk is improved.