76 results about "Shrimp larvae" patented technology

The invention relates to a large-scale method for raising seedlings of freshwater shrimps, which mainly comprises the following steps: the mixture ratio of female shrimps to male shrimps is between 3 and 5 to 1, and the shrimps come from different places, are more than 4.5 centimeters, have mature gonad, are able-bodied and scot-free, and have sensitive reaction to external stimulus; or shrimps with eggs and more than 5 centimeters are directly purchased in the mating period, taken as parent strains and placed into a seedling pool; high-quality full-rate mixed feed is thrown and fed from the next day; when zoeas occur in the pool, soybean milk is splashed; when shrimp larvaes begin to be abnormal, powdery mixed feed is fed when the soybean milk is splashed simultaneously; and when the proportion of abnormal seedlings is improved, the proportion of the powdery mixed feed is gradually increased and the powdery mixed feed can be completely thrown and fed after 10 days. Moreover, the transparency of a water body is controlled to between 20 and 30 centimeters; the pH value is between 7.5 and 8.5; and the dissolved oxygen is more than 5 milligrams per liter. The method is a scientific, reasonable, low-investment, high-efficiency and large-scale method for raising the seedlings of the freshwater shrimps, can effectively prevent varieties from degeneration, and is favorable for promoting good freshwater shrimps and improving the economic benefit of cultivation.

The invention relates to a freshwater shrimp cultivation method, in particular to a pollution-free freshwater shrimp cultivation method according to which hybridization is adopted and fish larvae are matched for cultivation together. The pollution-free freshwater shrimp cultivation method includes the following steps of shrimp pond requirements, shrimp pond treatment, hybridization, shrimp larvae breeding, feeing management, water quality management and density control. The pollution-free freshwater shrimp cultivation method makes the most of idle resources for production, standardizes cultivation techniques, and obtains high-quality offspring seeds for cultivation after Lake Taihu youth shimps and local shrimps are hybridized; moreover, when a second generation of freshwater shrimps are reproduced, the fish larvae are bred, on the one hand, small shrimp larvae can be used as feed of the fish larvae, and on the other hand, space is saved by the small shrimp larvae which are eaten and oxygen consumption is reduced, and therefore unified specifications and high output of the freshwater shrimps are ensured.

The invention discloses a litopenaeus vannamei ecological breeding method based on live food and water quality bio-regulation. The method includes following steps: (1), treating water before breeding,and performing live food culture; (2), arranging larvae; (3), breeding, regulating water quality, and preventing and controlling pest and disease; (4), marking thickness, desalting, and transferring.An ecological breeding technique of chlamydomonas plus artemia plus probiotics plus compound Chinese herbal medicine is provided, and natural protein, trace elements and minerals are provided for theshrimp larvae, so that the shrimp larvae have strong physique and resistivity, and ecological shrimp larvae bred by the method are big in size, orderly in specification, quick in growth and high in survival rate. The breeding method is advanced in concept, scientific, reasonable, easy in implementation and suitable for large-scale application in high-health breeding of litopenaeus vannamei and has good social benefit and economic benefit.

The invention discloses a penaeus vannamei high-yield cultivation system which comprises greenhouse ponds, a water circulation system and blow-down systems, wherein the blow-down systems are positioned at the bottoms of the greenhouse ponds; the greenhouse ponds comprise a greenhouse breeding pond and a young shrimp breeding pond; the water circulation system comprises a water ecology regulation pond, the greenhouse breeding pond and a wastewater treatment pond; the water ecology regulation pond communicates with the greenhouse breeding pond; the wastewater treatment pond communicates with the blow-down system; the water ecology regulation pond and the wastewater treatment pond are all arranged outside the greenhouse pond; a comprehensive oxygenation system and an automatic cruise feeding machine are further arranged inside the greenhouse pond. The invention further discloses a breeding method for the penaeus vannamei high-yield cultivation system. According to the breeding method, young shrimps of 3.0-4.0cm are adopted as shrimp larvae for breeding. By adopting the penaeus vannamei high-yield cultivation system and the breeding method disclosed by the invention, the breeding rotations can be increased, four rotations of shrimps can be bred, the yield can be high, aquatic products can sold in the market in balance in four seasons, and the market supply can be increased.

The invention discloses a high-quality larval stage feed for shrimp larvae, and a preparation method of the larval stage feed, wherein the feed comprises the following components in percent by weight: 25-40% of fish meal, 3-8% of shrimp meal, 1-4% of shrimp chaff, 1-3% of meat and bone meal, 1-3% of X fly larval protein, 1-5% of fermented bean meal, 8-18% of skinless bean meal, 8-18% of peanut bran, 2-4% of sleeve-fish ointment, 0.5-1.5% of yeast autolysis powder, 0.5-1.5% of active lactic acid bacteria powder, 0.5-1.5% of bacillus, 15-25% of high gluten flour, 0.5-2% of bentonite, 0.5-1.5% of sea fish oil, 0.3-1% of soybean oil, 1-3% of soybean lecithin, 0.5-2.0% of calcium dihydrogen phosphate, 0.1-1% of cholesterol, 0.1-1% of glucan, 0.05-0.2% of 35% vitamin C-phosphate, 0.05-0.2% of astaxanthin, 0.1-0.5% of multivitamins and 1.5-2.5% of complex mineral salt. The high-quality larval stage feed can meet the demand of penaeus vannamei boone on nutrition at the larval stage, and is capable of accelerating the growth rate of the shrimp larvae at the larval stage, improving the immunity of the shrimp larvae and guaranteeing the survival rate of the shrimp larvae; furthermore, the larval stage feed for the shrimp larvae is proper in particle size and can meet the food intake demand of the shrimp larvae.

The invention relates to a killifish culture method. The method includes the following steps: culture water, the pH of which is 6.5 to 8.0 and the oxygen content of which is 4mg/L to 8mg/L, is adopted to incubate spawns under 24 DEG C to 30 DEG C for 4 to 12 hours, incubated larvae are fed with brine shrimp larvae after 10 to 15 hours, water is changed every three days, and the amount of changed water is 1/10 to 1/5 each time; after 10 to 20 days, the larvae are grown into adult fishes, the adult fishes are transferred into a culture tank for raising and fed with fairy shrimps, water is changed every two days, and the amount of changed water is 1/8 to 1/4 each time. The culture method for culturing killifishes is easy to operate, and moreover, both the incubation rate and the survival rate of the killifishes are high.

The invention discloses an ovigerous shrimp larvae collecting and temporarily breeding device. The device is characterized by consisting of a shrimp larvae temporarily breeding tank, a parent shrimp storing tank, a baffle, a conical larvae collecting tank, a larvae collecting machine and a bracket, wherein the size of the parent shrimp storing tank is less than that of the shrimp larvae temporarily breeding tank; the parent shrimp storing tank is sleeved in the shrimp larvae temporarily breeding tank and fixed at an opening of the shrimp larvae temporarily breeding tank in a suspension manner; the top of the parent shrimp storing tank is opened, and other surfaces are nettings in 8 meshes; and the top and the bottom of the shrimp larvae temporarily breeding tank are opened, and other surfaces are bolting silks in 60 meshes. The ovigerous shrimp larvae collecting and temporarily breeding device disclosed by the invention has simple operation, and can master the density of the shrimp larvae out of the membrane in real time so as to separate the parent shrimp from the shrimp larvae; and meanwhile, the shrimp larvae can be conveniently collected.

The invention discloses a bait for promoting the mature of genital glands of parent shrimps of white shrimps in South America and a preparation method thereof. The preparation method comprises the following steps of: mixing and stirring fresh clamworm, squid, oyster and agar powder and then grinding the mixture into pasty by using a colloid mill; b. placing the obtained pasty substance into a tray to be flattened with the thickness of 0.3-0.4cm and placing into a steam box for one minute; and c. cooling the obtained gel-shaped substance and dividing into granules in the specification with the length, the width and the height being respectively 0.4cm to obtain a finished product. The bait can promote the mature of the genital glands of the parent shrimps of the white shrimps in South America, is free from carrying the white spot virus and taura syndrome virus of the parent shrimps in South America, reduces the pollution to a cultivation water body of the parent shrimp of the white shrimps in South America and the water replacement amount, improves the speed of the mature of genital glands and the genital gland index of the parent shrimps of white shrimps in South America and the survival rate of parent shrimp larvae of white shrimps in South America and has favorable application potentials.

The invention relates to the technical field of aquatic products cultivation and particularly discloses a cultivation technique for crayfish. The cultivation technique is characterized by comprising the following steps: selecting a cultivation pond; treating water quality; transplanting water plants; putting in shrimp larvae; feeding with baits; managing water quality. According to the cultivation method for crayfish provided by the invention, the animal baits and plant baits in different ratios are adopted for feeding for different growth periods of the crayfish; the baits are more targeted; the Chinese herbal medicinal ingredients are mixed and added in the baits; the components are more effectively combined with each other; the absorbing speed for the baits and the growth speed of the crayfish are effectively increased; the biological inhibitor prepared according to the method provided by the invention not only can be used for effectively killing fungus and microorganisms in water but also promoting the disease resistance of the crayfish.

The invention discloses a cultivation technique of freshwater shrimps. The cultivation technique comprises the following steps of (1) establishing a cultivation pond of which the bottom is flat and the two sides are slopes, laying loam soil at the bottom of the cultivation pond, laying a layer of maifan stones on the loam soil, and separately arranging a row of cultivation net cages of which the specification is 5m* 5m* 1m on the other two sides of the pond (except the two slopes); (2) half a month before breeding, performing disinfection treatment on the cultivation pond, and mounting oxygen supply equipment; (3) planting lythrum salicaria, aquatic iris and cyperus alternifolius on the slopes of the pond, planting dendrobium lohohense, potamogeton pectinatus and elodea nuttallii at the bottom of the pond, and putting pear-shaped bellamya in the pond to form a water body self-purification system; (4) designing a formula feed and fresh bait; (5) performing classified breeding, and performing gradient feeding; and (6) performing reasonable fishing. According to the cultivation technique disclosed by the invention, comprehensive nutrition can good-quality growth environment are provided for the growth of the freshwater shrimps, the growth speed of the freshwater shrimps can be notably increased, the immunity of the freshwater shrimps can be notably enhanced, the yield and the quality of the freshwater shrimps are improved, the survival rate of cultured shrimp larvae is increased, and the economic benefits of breeding households are guaranteed.

The invention relates to a fish and shrimp mixing aquaculture method, and belongs to the technical field of fish and shrimp aquaculture. The fish and shrimp mixing aquaculture method can effectively improve the survival rate of shrimp larvae, shorten the input amount of the shrimp larvae, and can reduce the cost of the shrimp larvae. The technical scheme of the invention includes the following steps: a, infrastructure preparation: with a 20 mu of soil pool as a standard, a 80-mesh bolting cloth is used to surround a 1 mu of small pool, or a bulldozer is used to establish an about 1 mu of soil pool; and oxygen supply facilities such as different air blowers are arranged according to the size of a middle stage cultivation water surface; b, shrimp larvae standardization breeding; c, basic feed input and feeding; e, shrimp larvae fishing: when the specification of prawns reaches 5 cm after thrice standardization breeding, gates of a net and the small pool are opened, the shrimp larvae are placed to a large pool to be cultured; and f, adult shrimp cultivation and harvesting: high quality feed is selected in later prawn cultivation with prawn compound feed as a main component, and the prawn can be harvested in June. The fish and shrimp mixing aquaculture method can be widely used for fish and shrimp mixing aquaculture.

The invention belongs to the technical field of aquaculture, and relates to a method for increasing transportation survival rate of summer freshwater shrimp larvae. The method comprises the steps that 1, water is added into a water tank, the demand water of the water tank is determined according to the transport quantity of the shrimp larvae, deep well water is added into the water tank to reach half of the demand water firstly, and then water of an original pond of the shrimp larvae is added to reach half of the demand water to be mixed with the added deep well water; 2, Vc is added, Vc for aquatic products is added into the water tank; 3, oxygen aeration is conducted, and oxygen is added into the water tank; 4, shrimp larva putting is conducted, and the shrimp larvae are put into the water tank. The character that the deep well water is homothermal is adopted, the water temperature of the water tank in high temperature season is far lower than that of the pond, the deep well water is added into the water tank to reach half of the demand water, the water temperature of the water tank can be effectively decreased, the temperature difference is not too large, the pond water is added to reach half of the demand water, and a buffering function on the quality of the water in the water tank can be achieved. Vc can effectively reduce stress reaction of the shrimp larvae and increase the survival rate of the shrimp larvae after the shrimp larvae are transported and enter the pond. An oxygen cylinder is used for adding the oxygen, on one hand, the pure oxygen adding effect is obvious; on the other hand, the temperature of the pure oxygen is constant, and the temperature of the water in the water tank can be kept stable.

The invention belongs to a method for cultivating Australia lobster. The method comprises a first step of selecting a culture pond; a second step of decontaminating and sterilizing the culture pond; a third step of laying clean river sand with a thickness of 18 cm after the pond cleaning in the second step is over; a fourth step of starting to place shrimp larvae in 15 days after the third step is finished; a fifth step of placing no feed in first five days after the shrimp larvae are placed in culture pond water, and starting to place fairy shrimps and rice bran from the sixth day; a sixth step of using nuobiqing biological water-purifying agent and PondProtect once every other 12 days in the feeding process in the fifth step, and timely clearing organic matter at the bottom of the culture pond. The method has the advantages that the controllability is high, immunity of the Australia lobster can be enhanced, shrimp larvae grow and develop tidily, the survival rate is high, the culture speed is quick, and the quality and yield can be improved.

The invention discloses an ecological breeding method for freshwater shrimps and cress and a preparation method thereof, and relates to the technical field of aquaculture. The ecological breeding method comprises the following steps: (1) pond treatment; (2) shrimp larvae selection and stocking; (3) cress cultivation; (4) floating bed preparation and planting; (5) feedstuff feeding; and (6) harvesting and fishing. According to the ecological breeding method disclosed by the invention, construction and arrangement of the ecological environment of a pond are reasonably performed, so that the double-win situation of cress planting and freshwater shrimp breeding is realized, and the cress and the freshwater shrimps are promoted mutually to grow.

The invention provides a rice and shrimp co-culture ecological breeding method. According to the rice and shrimp co-culture ecological breeding method, ditches shaped like the Chinese character'tian 'are arranged, so that a breeding water body has good fluidity, submerged plants are planted in a shrimp pond, the dissolved oxygen content of the water body is further increased, and the survival rate of shrimp breeding is increased; shrimp larvae are processed with a nutrient solution before stocking, the shrimp larvae after transportation are helped to recover vigor, nutrition is supplemented, the shrimp larvae are made to adapt to culture conditions of a new environment, and the culture survival rate is increased; by continuously changing feed feeding points in the breeding period, swimming ingestion of the shrimps is effectively promoted, the physique and immunity of the shrimps are enhanced, the morbidity is reduced, and the breeding survival rate is increased; and with adoption of the ecological breeding method, the rice field can be fully utilized, high-quality adult shrimps can be obtained through breeding, and the economic benefits of breeding are increased.

The invention relates to a shrimp larvae microinjection method. A puncture wound area of the present injection method is large, so individual animal is easy to die after being injected. The shrimp larvae microinjection method is characterized in that: a hand-operated micro-operation instrument and a nanoliter microinjector are firstly adopted, and quantitative liquid is absorbed into a microinjection needle; then the shrimp larvae is arranged inside a culture dish having a gauze, the culture dish is moved to the vision of a microscope, by adjusting a pinhead of the microinjection needle, the vision of the microscope can be entered, the position of the microinjection needle is adjusted through the hand-operated micro-operation instrument, a peritoneum hypodermic injection puncture point isdetermined, and the pinhead of the microinjection needle enters the peritoneum hypodermic tissue to perform the microinjection of medicine inside the human body; and after the injection is conformed to finish, the microinjection needle is remained for 1 to 3 seconds, and then the microinjection needle is withdrawn; and finally the culture dish is horizontally moved out of the vision of the microscope, and the shrimp larvae is returned into the water. The method is simple to operate, has small wound area and high injection successful rate.

The invention belongs to the technical field of agricultural culture, and particularly relates to a culture method for freshwater shrimp and soft-shelled turtle polyculture. A culture pond is 1.5 m deep, multiple movable inverted-A type nets are arranged in the polyculture pond, and Sibin stone needle is put into the closed part of the inverted-A structure. Compared with the prior art, the culture method has the advantages that the inverted-A type nets can be arranged, soft-shelled turtles are limited in a certain growth region, freshwater shrimps can shuttle back and forth in multiple regions, in this way, the freshwater shrimps can elude soft-shelled turtle predation and drive the soft-shelled turtles to move so that the soft-shelled turtles are full of juice, an appropriate amount of shrimp larvae and young soft-shelled turtles are put in the corresponding phases, the respective growth regions are reasonable, the shrimp larvae and the young soft-shelled turtles grow healthily in the corresponding growth regions, the freshwater shrimps can gather residual feeds of the soft-shelled turtles for eating, the water quality is effectively adjusted, two years are used as one cycle, the pond space is effectively used, and economic benefits of soft-shelled turtle and freshwater shrimp culture are increased.

The invention discloses a shrimp larva culture method. The shrimp larva culture method comprises the following specific step of selection of a shrimp larva pond, wherein the pond with water 1-1.5 m deep is selected, and the suitable area of the pond is 700-2000 m<2>; two small soil ridges which are perpendicular to the shape of the pond are arranged in the pond, and the parts, exposed out of the water surface, of the soil ridges are 10-15 cm. According to the shrimp larva culture method, different water plants grow in different positions of the shrimp larva pond to stimulate the living environment of shrimp larvae, so that the shrimp larva pond adapts to life habits of the shrimp larvae, and the survival rate of the shrimp larva is improved. When the shrimp larvae are fed with feed, the shrimp larvae are fed with different kinds of feed during different time periods so as to meet nutritional requirements for the growth of the shrimp larvae; different kinds of feed are put, the shrimp larvae are fed according to a certain rate so as to improve the quality of the shrimp larvae, and the situation that due to malnutrition, defects of appendages of shrimp larvae are caused is avoided. The small soil ridges are arranged in the shrimp larva pond so that crayfishes can burrow, mate and lay eggs, and the yield of the shrimp larvae is improved; the spacing between each small soil ridge and the corresponding pond dike is 8 meters, so that it is convenient for a work ship to pass, and a better using prospect is brought.

The invention discloses an industrialized efficient breeding method for freshwater shrimps. The method comprises the following steps that 1, the freshwater shrimps are stocked in an outdoor breeding tank after disinfection treatment, and the oogenesis conditions of the female shrimps are observed; 2, after the oogenesis of the freshwater shrimps is determined, oogenesis fertilization tests are carried out, the average fertilization rate is calculated, and when the average fertilization rate reaches 70% or above, the oogenesis female shrimps are transferred to a disinfected indoor aquarium fortemporary breeding in time; 3, after the female parent shrimps complete egg hatching, the female parent shrimps are stocked into the outdoor breeding tank again to prepare the next reproduction mating; 4, after eggs are hatched into nauplii, the hatching rate is calculated, and the freshwater shrimp larvae are bred; 5, when the shrimp larvae all grow into young shrimps with the body length of 8-12mm, the breeding work for the shrimps is completed, and the emergence rate is calculated. By means of the breeding method, the reproduction mating management of the parent freshwater shrimps and hatching and breeding of the young shrimps are conducted, the fertilization rate, the hatching rate and the emergence rate can be significantly increased, and the time required for the development of thelarvae in different development stages is shortened.

The invention discloses a penaeus vannamei culture method, including preparation of facility and equipment of a temporary-raising pond, cultivation of biological floccules in early stage of water in acultivating pond, putting-in of temporary-raised shrimp larvae, daily feeding of baits and adding of nutrients. The penaeus vannamei culture method has the advantages of short culture cycle, high yield, low cost, no adding of hormones, and being green and environmentally friendly; penaeus vannamei cultured by the method is delicious in taste and big in size.

A method for breeding lobsterlings in a mountainous area rice field comprises the following steps that S1, a rice field is selected; S2, the rice field is improved; S3, grass is planted with a fertilizer and water, wherein channels are disinfected before water injection and are injected with water after one week; S4, shrimp larvae are put; S5, breeding and management are performed; S6, fishing is performed. The method has the advantages that specific high-quality water resources in a mountainous area and mountain spring water micro-flow hot in winter and cold in summer are utilized to breed the lobsterlings in the rice field, a lobsterling growth environment is reasonably controlled, breeding water quality management is simple, and the lobsterling growth speed is improved, so that bred lobsterlings are bright in color and luster, delicious and high in nutrition value, meanwhile the quality and conditions of the lobsterlings are ensured, and the lobsterlings have a high market value. Lobsterling breeding and rice planting are organically combined, so that lobsterlings and rice produce mutualistic symbiosis, the productivity of farmland is fully played, the additional value of farmland management is improved, and the method has good economic, beneficial and ecological benefits.

The invention provides a metapenaeus ensis farming method. The metapenaeus ensis farming method comprises the following steps of pond selection, pond clearing and sterilization, shrimp larvae putting, feed putting and daily management. The metapenaeus ensis farmed scientifically by adopting the metapenaeus ensis farming method is delicious in flesh, large in size and high in yield, and the maximum economic profit is brought to farmers. The immunity and resistance of the metapenaeus ensis can be improved, the metapenaeus ensis growth speed is improved, and the survival rate and flesh quality are improved.

The invention discloses a high-survival-rate penaeus vannamei aquaculture method. The method comprises the following steps that 1, the pH value and transparency of aquaculture pond water are controlled, and a contamination draining mechanism and a water circulating mechanism are arranged in an aquaculture pond; 2, shrimp larvae are put in a shallow water zone; 3, a recuperating agent and feedstuff for a mouth-open period are evenly mixed, feeding is performed by adopting a first feeding method, an activator is put in the afternoon every day, and shrimp shell caring liquid is put in the aquaculture pond in the morning and afternoon every day; 4, feeding of the feedstuff for the mouth-open period is stopped, a juvenile shrimp feed is fed and is fed by adopting a second feeding method, and the shrimp shell caring liquid is put in the aquaculture pond in the morning and afternoon every three days; 5, the feeding of the juvenile shrimp feed is stopped, a middle-sized shrimp feed is adopted for feeding and is fed by adopting a third feeding method, and the shrimp shell caring liquid is put in the aquaculture pond in the morning and afternoon every seven days. The high-survival-rate penaeus vannamei aquaculture method has the advantages of remarkably improving the survival rate and acre yield of penaeus vannameis, reducing feed coefficients and improving the growth speed of the penaeus vannameis.