34 results about "Ruppia" patented technology

The invention relates to an ecological trepang culture method in silt sandy ponds in coastlands, which belongs to the aquaculture field. The method comprises the steps of setting a pond, setting trepang reefs, disinfect the pond, controlling feed water, cultivating feedstuff, stocking young trepang and managing culture. The feedstuff culture which is performed in April to May comprises the following steps: firstly, transplanting benthic diatom in a height of 0.8 to 1 m feed water depth in the pond in the prior period, with 5 to 10 L of benthic diatom liquid per Chinese acre; secondly, transplanting ruppia maritime and amphilhoe japonice, especially, integrally transplanting ruppia maritime through pulling up by the roots according to the quantity of 5 to 15m per square meter, and transplanting amphilhoe japonica according to the quantity of 1.5 to 3 kg per Chinese acre after the transplanting of ruppia maritime; thirdly, poly-culturing mussel organism; fourthly, feeding water to the pond to the depth of 3 to 4 m, and stocking prawns according to the quantity of 500 to 1500 per Chinese acre. In the method of the invention, ecological feedstuff is adopted for transplanting and polyculture, therefore, not only the cost of artificial feedstuff is saved, but also the natural ecological environment is created for trepang culture.

The invention discloses a reef type circulating egg-holding device suitable for cuttlefish reproduction and an application method thereof. The reef type circulating egg-holding device suitable for cuttlefish reproduction includes a substrate, a main shaft and a plurality of egg-holding frames, wherein the substrate is provided with the main shaft; the egg-holding frames are hung from the bottom tothe top, and can be arranged on a large water surface; shaft sleeves sleeve the main shaft, and the number of the shaft sleeves can be adjusted according to requirements; and each shaft sleeve is connected to one egg-holding frame, and a plurality of egg-holding frames can be arranged on one main shaft. The reef type circulating egg-holding device suitable for cuttlefish reproduction can be combined into a line-shaped, net-shaped or surface-shaped structure by using lines, a plastic net or rough surface materials, thus being able to simulate an environment of gorgonian and achieving the effect of promoting egg laying for cuttlefish.

A method for incubating the planktonic shellfish and culturing its larvae includes collecting its fertilized ova along with their attachments, hanging them from a supporting frame for development, transferring them in netted case, inculating in flowing water while aerating, and culturing their larvae in flowing water while aerating.

The invention discloses a method for culturing pharaoh cuttlefish fries. The method includes the steps that pharaoh cuttlefish eggs are framed and fixed at the position apart from the bottom of a pool by 20 cm-30 cm to be hatched in water; water temperature, salinity and the PH value are accurately regulated and controlled so that the optimal hatching and fry culturing state can be achieved; the environment most suitable for pharaoh cuttlefish hatching and fry culturing is adopted; a shallow-water hatching scheme is adopted, and a water-changing method of flood tides and falling tides in the natural world is simulated so that water consuming can be efficiently managed; scientific daily management operation regulations in pharaoh cuttlefish fry culturing are set. The production cost can be substantially lowered, the hatching rate and the survival rate of the pharaoh cuttlefish fries can be increased, and seedlings higher in quality can be obtained through culturing.

The invention discloses a cuttlefish egg adhesion hanging cage, which comprises a cylindrical fine-mesh screen with supporting parts, wherein a calcium clothing adhesion net piece is hung in the fine-mesh screen, a synthetic resin rope serves as an adherence framework material of the calcium clothing adhesion net piece, calcium hydroxide or soluble calcium salt is contained in the synthetic resin rope, and a coating containing calcium materials is coated outside the synthetic resin rope and is provided with a rough surface. The cuttlefish egg adhesion hanging cage has the advantages of being novel in structure, good in incubation effect, high in incubation rate, good in aquaculture effect and the like.

The invention relates to a method for cultivating the bait of stichopus japonicus selenka in a costal sediment pond. The bait cultivation is carried out from April to May, which comprises that: (1) after the toxicity of the medicine for cleaning the pond fades away, the water in the pond is discharged; the water with the height being 30-50cm is injected again; and 0.075kg/m<2> of organic fertilizer and 0.003 kg/m<2> of chemical fertilizer are put in the pond; (2) when the depth of the inlet water in the pond reaches 80-90cm, demersal diatom is transplanted, 5-10l/mu of algae solution can be transplanted, and carbamide can be put in as per 0-1kg/mu; (3) Ruppia maritime and algae gammarid are transplanted. The Ruppia maritime is uprooted and transplanted integrally as per the quantity of 5-15 plants/m<2>; after the Ruppia maritime is transplanted, the algae gammarid is transplanted as per 1.5-3kg/mu. The beneficial effects of the invention are that not only the raised stichopus japonicus selenka has excellent quality, but also the incidence of diseases is low, the cultivation period is short, the survival rate is improved, therefore the method of the invention has vast promotion prospect.

The invention provides a method for harvesting and temporarily culturing sepia esculenta in a cuttlefish-shrimp polyculture pond. The method comprises steps: selecting a common ground cage for capturing prawns and a grading catching ground cage used for a prawn-crab polyculture pond; using the grading catching ground cage to catch prawns, and then using the common ground cage to capture cuttlefishes; after the cuttlefishes are caught, oxygenating and transporting the cuttlefishes with water; preparing a buffer pond and a temporary culturing pond; putting the cuttlefishes transported with water in the buffer pond to adapt for 2-3 hours, and transferring the cuttlefishes with water to the temporary culturing pond to temporarily culture; in temporary culturing, covering a blackout cloth on the temporary culturing pond, in the first week of temporary culturing, feeding fresh and alive crablats, in the second week, feeding fresh and alive palaemon carinicauda, after two weeks, feeding iced fresh small trashes; after 20-30 days of temporary culturing, using the sepia esculenta for live selling. The survival rate of the sepia esculenta after temporary culturing can reach higher than 90%. The method completely realizes live selling of the sepia esculenta, and improves economic benefits of the sepia esculenta cultivation.

The invention discloses a laying duck feed for enriching calcium and preventing diseases and a production method thereof. The feed comprises the following raw materials in parts by weight: 100-150 parts of soybean meal, 70-100 parts of distillers' grains of corn, 50-80 parts of vegetable dregs, 30-50 parts of hay powder, 20-30 parts of peanut shell flour, 15-20 parts of tea leaf residues, 15-20 parts of fruit peels, 0.3-0.5 part of a fermentation agent, 50-70 parts of shrimp bran, 20-30 parts of particles of hoofs and horns, 20-30 parts of pig bone powder, 5-10 parts of turtle oil, 2-3 parts of cuttlefish oil, 40-50 parts of fresh corn leaves, 30-40 parts of Chinese cabbage leaves, 3-4 parts of folium isatidis, 2-3 parts of stringy stonecrop herbs, 1-2 parts of wild chrysanthemums, 2-3 parts of radix scutellariae, 2-3 parts of costus roots and 5-15 parts of an insect repellent. The feed disclosed by the invention can provide a sufficient number of superior calcium sources for laying ducks, so that the intensity and the smoothness of eggshells are enhanced, and the eggshells are hard and are not easy to damage. The feed disclosed by the invention can also increase the egg laying rate of the laying ducks, improves the quality of duck eggs, enhances the physique of the laying ducks and reduces the occurrence of diseases and pestilence.

The invention discloses a preparation method of feed capable of promoting hairy crabs to change shells. The preparation method comprises the following steps: extraction of fish viscera oil, modification of fish oil, fermentation of fishmeal, fermentation of cottonseed meal and compounding. The feed capable of promoting the hairy crabs to change shells is composed of the following materials in parts by weight: 20-25 parts of modified fish oil, 15-20 parts of fermented fishmeal, 40-50 parts of fermented bean meal, 10-12 parts of flour, 2-5 parts of table salt, 0.2-0.3 part of ecdysterone, 0.2-0.3 part of squid cream, 3-5 parts of shrimp meal powder, 0.5-1.0 part of carboxymethyl cellulose, 3-5 parts of compound premix, 0.005-0.006 part of astaxanthin and 0.005-0.006 part of canthaxanthin. The feed capable of promoting the hairy crabs to change shells has the beneficial effects: the feed has stronger oxidation resistance, can clear away excessive free radicals from the bodies of the hairycrabs, improves the immunity and anti-stress ability of the hairy crabs, improves the constitutions and vitality of the hairy crabs in a shell-changing period and enables the hairy crabs to get through the shell-changing period safely.

The invention discloses a special device for ultrasonic atomization, humidification and transportation of cuttlefish eggs, which comprises a heat insulation shell, wherein a cavity of the heat insulation shell is provided with a telescopic hanger; the bottom of the heat insulation shell is provided with a water collection tank; a filtering plate is arranged above the water collection tank; and anultrasonic atomizer which can be used for taking water from the water collection tank and atomizing the water and then discharging is arranged in the hear insulation shell. The special device has theadvantages of novel structure, convenience for operation, large storage and transportation quantity and high motility rate.

A mandarin fish feed rich in zinc and organic selenium and a preparation method thereof are disclosed. The preparation method comprises the following steps: crushing all raw materials including soybean meal, peanut powder, rapeseed meal, fish meal, soybean meal, river snail powder, shell powder, cuttlefish paste, cuttlefish viscera powder, oyster powder, radish powder, selenium-rich corn flour, selenium-rich malt meal, selenium-rich california burclover, bone meal, duck intestine powder, vitamin C, an immunopotentiator and fish auxin and mixing, hardening and tempering the mixed semi-finished product through a conditioner by introducing water vapor for 3-15 min, and granulating by a pressure granulator at the granulation temperature of 90-95 DEG C so as to obtain feed particles. The feed can remarkably raise survival rate and yield of mandarin fish. By eating the mandarin fish fed with the feed, human body capability and anticancer ability also can be raised, human immunity is enhanced, growth and development of teenagers are promoted, and cardiovascular and cerebrovascular diseases are prevented and treated. As cheap raw materials such as soybean meal, peanut powder, rapeseed meal, etc. are used as main raw materials, price is low. Thus, cost of the product is reduced.

The invention relates to a seed storage method, and concretely relates to a ruppia sinensis seed storage method. According to the invention, distilled water and a seawater element are used for preparing high-salinity artificial seawater which is used for disinfecting water body; after matured ruppia sinensis seeds exocarp is completely decayed, the seeds are flushed, the cleaned ruppia sinensis seeds are placed in a sealed container filled with the disinfection artificial seawater; finally the temperature of the artificial seawater for immersing the ruppia sinensis seeds is kept at 0 DEG C, and the seeds are stored in dark place. During seed storage, water is regularly changed, and the decayed seeds are cleaned. The reservation rate of the ruppia sinensis seeds during a storage period is increased by the method, high vitality and quality of the seeds can be kept, the simple and effective ruppia sinensis seed storage method can provide high quality ruppia sinensis seeds for artificial sowing, is in favor of recovery or reconstruction of an underwater vegetation ruppia sinensis grassland, and provides necessary technical support for rapidly recovering good ruppia sinensis grassland ecological environment.

The invention relates to a combined feeding method of bait for domesticating inkfish offspring seeds. The method comprises the following steps: feeding young inkfishes hatched 10-20 days with bait ofa formula I; feeding the young inkfishes hatched 20-30 days with bait of a formula II; and feeding the young inkfishes hatched 30 days with bait of a formula III till sale of the offspring seeds. By adopting a bait gradient domestication method, bait transform domestication is carried out by the bait of the formula I, so that the young inkfishes fit icy and fresh bait. The young inkfishes can takethe bait of the formulae II and III smoothly, thereby laying a solid foundation for breeding the young inkfishes in a pond successfully. The bait of the invention is scientific in raw material composition, reasonable in component match and sable in raw material source, has food calling action to the young inkfishes, can improve the anti-stress ability of the young inkfishes, and is favorable forrecovery of the young inkfishes spraying ink. The bait for domesticating inkfish offspring seeds in the method is scientific in raw material composition, reasonable in component match, stable in raw material source, simple production process, convenient to breed and use and free of any illicit drugs, so that dependence of the young inkfishes on antibiotics is reduced, the investment is small, andthe bait remuneration is high.