109 results about "Sinonovacula" patented technology

The invention provides a sinonovacula harvesting machine, and belongs to the technical field of fishery machines. The sinonovacula harvesting machine solves the problem that an existing sinonovacula harvesting device is low in efficiency and has dead angles in the harvesting process. The sinonovacula harvesting machine comprises a rack, a driving and steering mechanism and a sinonovacula collecting mechanism, wherein the driving and steering mechanism is used for driving the rack to move forward. The sinonovacula collecting mechanism comprises a support fixedly connected at the front end of the rack. A sinonovacula lifting device which is of an inclined plane shape is arranged at the lower end of the support. A conveying mechanism is further located on the support at the tail end of the sinonovacula lifting device. A sinonovacula frame is arranged at the tail end of the conveying mechanism. A spraying silt-removing device is further arranged at the upper end of the conveying mechanism. According to the sinonovacula harvesting machine, the sinonovacula collecting mechanism is used for scooping up sinonovacula, a conveyer belt is used for conveying the sinonovacula, the spraying silt-removing device is used for removing silt on the sinonovacula in the conveying process, so that the structure is simple in the process of collecting the sinonovacula, and the sinonovacula is clean. The sinonovacula harvesting machine has the advantages of being reasonable in structure, convenient to use, and free of dead angles in the harvesting process, greatly lowers harvesting cost, improves work efficiency, and can simultaneously harvest other shellfishes in intertidal zones and sinonovacula ponds.

The invention provides a preparation method of Sinonovacula constricta enzymatic hydrolysis polypeptide, and the invention is characterized in that the method: shelling Sinonovacula constricta, cleaning and rubbing, adding water according to a mass ratio which is 1:1-4 between the material and the water for homogenate, and adjusting the pH value to 7-8; adding protease for enzymatic hydrolysis, and the addition of the protease is 0.2-0.3 m% of Sinonovacula constricta, and the enzymatic hydrolysis temperature is 60-70 DEG C, and the hydrolysis time is 2-6 hours; after enzymatic hydrolysis, killing enzyme, fetching an upper clear liquid by centrifugation, and obtaining an enzymatic hydrolysis liquid; obtaining the required Sinonovacula constricta enzymatic hydrolysis polypeptide by ultrafiltration, G-25 gel chromatographic column chromatography and reversed-phase high performance liquid chromatography elution of the enzymatic hydrolysis liquid. The invention has the advantages of simple preparation technology, and the prepared Sinonovacula constricta enzymatic hydrolysis polypeptide has the advantages of high sensitivity, good stability and little side-effect, good hydroxyl radical clearance, DPPH free radical clearance and redox performance with substantial antioxidation effect; the Sinonovacula constricta enzymatic hydrolysis polypeptide can be used for external antioxidation, and has an important meaning for further research and development of functional foodstuff and medicament based on Sinonovacula constricta enzymatic hydrolysis polypeptide, and improvement of economic value of Sinonovacula constricta.

The invention discloses a high-yield high-efficiency technology for cultivating sinonovacula constricta in a pond, which is characterized by comprising the steps of (1) pond selection, (2) pond modification, (3) pond treatment, (4) treatment of an algae cultivating pond and (5) selection of sinonovacula constricta larva. By means of modification of the cultivating pond and changing of an existing blind and unsuitable fertilizing-feeding mode, growth speed of sinonovacula constricta cultivating in the pond is greatly improved, a cultivating period is shortened, two-batch yield of the pond sinonovacula constricta in one year is achieved, cultivation survival rate, specification and yield are improved remarkably, and high-quality, high-yield and high-efficiency pond cultivation of the sinonovacula constricta is facilitated.

The ecological mixed feed for Razor clam is prepared with 16 kinds of materials, including white fish meal, soybean dregs, peanut dregs, scallop leftover, shrimp head powder, etc in certain weight proportion. The ecological mixed feed for Razor clam has no chemical additive, high conversion rate, less pollution to water, capacity of promoting Razor clam growth, low cost, environment friendship and other advantages, and may be used in raising Razor clam effectively.

A method capable of promoting stripped shellfish eggs to be mature in vitro is characterized by first stripping off mature shellfish to obtain eggs and sperm, filtering and washing the eggs after stripping, then washing the eggs after being treated by ammonia water at a concentration of 0.005-0.01% for 10-15min and then by 5-hydroxytryptamine at a concentration of 0.001-0.002M for 30-45min, finishing artificial fertilization after combination of the eggs and sperm, which are promoted to be mature in vitro and enabling fertilized eggs to hatch and grow to normal D-type larvae. The shellfish is abalone, bloody clams, sinonovacula constricta, clams, pearl shells or mussels. In the method, the complementary actions of the ammonia water and 5-hydroxytryptamine are adopted, therefore, the respective side effects of the ammonia water and 5-hydroxytryptamine are reduced, the fertilization rate and hatchability are improved and the deformity is less. The method is simple in operation and can be applied to seedling production.

The invention provides application of marine diatoms as a sinonovacula constricta lamarck seedling culture bait. The method comprises a step of: selecting Thalassiosira weissflogii, carrying out three-level enlarge cultivation by adopting a specific culture solution formula, and feeding the marine diatoms after the average body length of sinonovacula constricta lamarck juvenile mollusks is more than 0.45mm. The marine diatoms reproduction velocity is very fast by utilizing the culture solution formula provided by the invention; and moreover, the growing velocity of the sinonovacula constricta lamarck juvenile mollusks can be obviously accelerated after the marine diatoms are fed in a feeding mode provided by the invention.

The invention relates to an artificial breeding method for tuba false fusus, which comprises the following steps of: on the basis of investigating tuba false fusus resources along the coast of Hainan and reproductive biology, finding out the thriving propagation season of the tuba false fusus, and catching parent tuba false fusus in the season; putting healthy adult tuba false fusus into a nursery pond for intensified breeding, and optimizing breeding conditions such as water flow, illumination, water temperature, and salinity; after the tuba false fusus is mated and lays eggs, cutting off an egg capsule, and transferring to an incubation basket for flowing water breeding; after young tuba false fusus is hatched, transferring to a breeding basket, feeding concentrated chlamydomonas in first 4 to 6 days, and then feeding fresh clam and Sinonovacula constricta; when the young tuba false fusus grows to 2.0-2.5cm, dividing the young tuba false fusus; and when the young uba false fusus grows to about 4.0cm in the breeding basket, entering a culture stage. Based on the reproductive biological process of the tuba false fusus, the method realizes indoor artificial breeding of the tuba false fusus, shortens the artificial breeding cycle, is suitable for mass production, and has the advantages of simpleness, practicability, convenient operation, low production cost, and high survival rate of the bred tuba false fusus.

The invention discloses an ecological circulation culture method and device for algae, prawns and sinonovacula constricta in winter. The device comprises an alga pond, a high-position prawn culture pond, settling ponds, a sinonovacula constricta culture pond and purifying ponds, wherein a thermal-insulation plastic shed covers each pond; the high-position prawn culture pond is provided with a boiler. The method includes: inoculating micro-alga seed sources artificially cultured in the alga pond into the high-position prawn culture pond, the optical prawn culture temperature is guaranteed through boiler heat supply, micro-algae in prawn culture water passing the settling ponds is pumped into the sinonovacula constricta culture pond to serve as baits, and micro-alga seawater filtered by sinonovacula constricta is purified by the purifying ponds and pumped into the high-position prawn culture pond for recycling. The ecological circulation culture method and device has the advantages that the sinonovacula constricta can obtain sufficient micro-alga baits and appropriate growth water temperature in the whole culture period, and the high-position prawn culture pond is allowed to keep a relatively-stable water ecological environment system at the same time.

The invention relates to shallow pond culture technology for sinonovacula constricta lamarck, which is characterized by comprising the following steps: putting young sinonovacula constricta lamarck from February 10 to February 30 every year, wherein the amount of the young sinonovacula constricta is 50kg (6,000 babies / kg) per mu; fertilizing water by using 200kg of ammonifying fermented organic fertilizer, 5kg of diammonium phosphate and 5kg of superphosphate per mu; controlling the depth of the water level to be 30-50cm; adding a small amount of water in the middle of every month according to water conditions so as to keep the stability of the water level, and fertilizing the water for one time; and controlling the salinity of water to be 2-3 percent and controlling the pH to be 7-8.6. The technique solves the problems of low yield and poor economic return of the shallow culture of the sinonovacula constricta lamarck or the mixed culture of shrimps and shellfish, and is suitable for seawater shallow pond culture of the sinonovacula constricta Lamarck.

The invention provides a preparation method for sinonovacula constricta enzymolysis liquid with diversified bioactivities. The preparation method is characterized in that the preparation method includes the following steps: fresh sinonovacula constricta meat is made into meat paste by a tissue crushing homogenizer; the meat paste is bottled, water and papain (0.3% of the meat paste) are added to the meat paste, pH value is adjusted to 6, the hydrolyzing is carried out for 6 hours, and the temperature is 60 DEG C; the proportion of the meat paste and the water is that 50ml water is added per 30g meat paste; the enzyme killing treatment is carried out by the temperature rising method, the temperature is 85 DEG C, and the time is 10m; centrifugal treatment is carried out on liquid formed in the previous step at the speed of 4,500 r / m, the time is controlled within 20m, and then supernate namely enzymolysis liquid is obtained. The preparation method also has the following characteristics: the processing step is simple, the operation is easy, the controlling is easy, and the processing cost is low; the preparation method provides a good additive for medicine, food and health care food for curing and preventing tumors as well as fatigue diseases, nourishing hairs, promoting growth and removing internal peroxides; moreover, the preparation method also provides a good raw material for a hair care product.

The invention discloses a sinonovacula constricta C1q (Complement 1q) gene, an encoded protein, a cloning method of the sinonovacula constricta C1q gene and a recombinant sinonovacula constricta C1q gene engineering bacterium construction method. The sinonovacula constricta C1q gene, the encoded protein, the cloning method of the sinonovacula constricta C1q gene and the recombinant sinonovacula constricta C1q gene engineering bacterium construction method are characterized in that a sequence of the sinonovacula constricta C1q gene is as shown in SEQ ID NO.1; the cloning method of the sinonovacula constricta C1q gene comprises the steps of designing nested primers of 3'RACE according to an EST (expression sequence tag) sequence homologous with the C1q gene and amplifying a full gene length by adopting a 3'RACE technology; an amino acid sequence of the encoded protein of the sinonovacula constricta C1q gene is as shown in SEQ ID NO.2, and a sinonovacula constricta C1q protein is amplified by a primer respectively containing a BamH I site and an Xho I site; a target gene obtained by cloning is inserted into a vector to obtain a recombinant plasmid, and the recombinant plasmid is subjected to inducible expression and then is purified to obtain a gene engineering bacterium. The sinonovacula constricta C1q gene has the advantages of combining capacity for lipopolysaccharide, peptidoglycan and mannan and obvious agglutination effects for escherichia coli, vibrio anguillarum and vibrio parahaemolyticus.

The invention discloses an artificial cultivation method of hemifusus termatamus and relates to shellfish cultivation. The invention provides the artificial cultivation method of hemifusus termatamus, which can effectively reduce cultivation cost and labor intensity, is convenient for daily inspection and has convenient operation and management. The method comprises the following steps: selecting cultivation facilities and water sources; before stocking young hemifusus termatamus, sterilizing, when using a land cultivation pond, laying attaching base at the bottom of the pool for the young hemifusus termatamus to attach, and cleaning the bottom and sucking sewage regularly after stocking the young hemifusus termatamus; after starting to cultivate the young hemifusus termatamus, feeding with bait every day, wherein the bait comprises the following ingredients according to mass ratio: 50-70 of sinonovacula constricta, 30-60 of ruditapes philippinarum, 40-70 of trash fish and 10-30 of laminaria japonica; when cultivating the hemifusus termatamus, cleaning residual bait at the bottom of the pool, on the attaching base or in the cultivation cage every day, when the shell length of the young hemifusus termatamus reaches 1-3cm, the stocking density is 300-600 / m2, when the shell length reaches more than 5cm, carrying out division, and controlling the stocking density of the young hemifusus termatamus to be within 30-60 / m2.

The invention discloses a method for solving the problem of biological deposition of a sand-bottom stichopus japonicus aquaculture pond by the aid of biological functions. The method can solve problems that an effect for improving biological deposition of a sand-bottom stichopus japonicus aquaculture pond is poor in the prior art, a sedimentary environment of the stichopus japonicus aquaculture pond cannot be effectively improved, diseases of stichopus japonicus cannot be prevented and the like. The method is characterized in that certain quantities of penaeus japonicus, fenneropenaeus chinensiss, ruditapes philippinarum and sinonovacula constricta are fed into the stichopus japonicus aquaculture pond, an effect of loosening the bottom of the pond is realized owing to sand diving functions of the penaeus japonicus, the fenneropenaeus chinensiss, the ruditapes philippinarum and the sinonovacula constricta, organisms such as nereid and copepoda in the aquaculture pond are ingested by the penaeus japonicus and the fenneropenaeus chinensiss, and residual feeds, organic detritus, humus, fungi and the like are subjected to filter-feeding by the ruditapes philippinarum and the sinonovacula constricta. Accordingly, the method has the advantages that the purpose of improving a sedimentary environment of the aquaculture pond is achieved, and the problem of biological deposition of the aquaculture pond is solved.

The invention relates to a method for increasing a culture yield of mudflat shellfish by selectively culturing a pond microalgae community. The method is particularly characterized in that for culture of pond tegillarca granosa and anadara subcrenata, the microalgae community in a pond is selectively cultured to be brown yellow by adjusting water body nutritive salt composition, and for clam and sinonovacula constricta, the microalgae community in the pond is selectively cultured to be yellowgreen by adjusting the water body nutritive salt composition. According to the method, a growth rate of the corresponding mudflat shellfish is obviously higher than that of the mudflat shellfish by the traditional culture, and the culture yield of the corresponding mudflat shellfish in a unit area of the pond can be increased greatly.

The invention discloses a sinonovacula constricta leisure food and a processing method thereof. The hulled sinonovacula constricta and tartar sauce with certain proportion are bagged and sterilized soas to obtain the sinonovacula constricta leisure food. The specific processing method comprises the following steps of alive sinonovacula constricta->cleaning->selecting->fostering and spitting sand->cooking->hulling and taking meat->rinsing leachate->dipping->weighing and bagging->vacuum sealing->sterilizing->cooling and finishing. The processed product of the processing method in the inventionremains characteristics of delicious taste of sinonovacula constricta and fresh and smooth of sinonovacula constricta of the fresh sinonovacula constricta, simultaneously has the advantage of convenient carry and eating, not only can be eaten as a dish, but also can be eaten as leisure food and breaks through the traditional processing and eating method of the sinonovacula constricta.

The invention discloses a Sinonovacula constricta Lamarck sauce, which is prepared by the following raw materials with the following weight proportions: 8 to 12 of minced Sinonovacula constricta Lamarck meat, 2.5 to 3.5 of minced sea kelp, 1.5 to 2.5 of minced onion, 1.5 to 2.5 of minced potato, 1.5 t0 2.5 of minced carrot, and 0.8 to 1.2 of minced lean meat. The preparation method comprises stir-frying the raw materials in vegetable oil weighing 15 to 25 percent of the minced Sinonovacula constricta Lamarck meat and then adding with seasoning of an appropriate amount. The minced Sinonovacula constricta Lamarck meat is made through zymohydrolysis of the Sinonovacula constricta Lamarck meat with protease for 3-5h, where the weight proportion of the protease and Sinonovacula constricta Lamarck meat is 0.1 to 0.12g:100g. The Sinonovacula constricta Lamarck sauce has the advantages of fresh and moderate taste, rich nutrition and long shelf life. The preparation method of the invention carries out zymohydrolysis on the Sinonovacula constricta Lamarck meat with protease for 3-5h at the temperature of 40 to 55 DEG C, so that protein in the Sinonovacula constricta Lamarck meat is mostly decomposed into free amino acids and oligopeptides, not only increasing the freshness but also facilitating the digestion and absorption in the human body.

The invention discloses a fresh-keeping manufacturing method of frozen razor clam in the aquatic product processing domain, which comprises the following steps: (1) selecting fresh, full and even individual with odor as raw material; grading; cleaning; (2) weighing 100-1000g razor clam to pack; extracting the bag into vacuum; sealing; (3) placing the bag into boiled water or steam to heat 1. 5-2 min until maturing; (4) freezing quickly in the ice house at -30 deg. c; freezing in the ice house at -18 deg. c until sending materials out of warehouse. The invention has simple and utility technique to keep original taste of razor clam to ensure freshness and edible quality within 12 months, which can be eaten as soon as bag opening to solve the difficulty of uneasy transportation of fresh malacolog, conservation and selling, therefore fitting for spreading in the razor clam place of origin.

The invention relates to a method for preserving a fish liver by slurry ice. The method is characterized by comprising the following steps: (1) performing pretreatment, namely cleaning fresh sinonovacula anglerfishes fished just now for later use; (2) taking out the fish liver, namely bleeding the fresh sinonovacula anglerfishes fished just now, taking out the fish liver, immersing the fish liver into slurry ice until the center temperature of 15kg of slurry ice reaches below 1.6-0 DEG C, wherein the ratio of the slurry ice and the fish liver is (20L:8kg)-(40L:15kg). Compared with the prior art, the method has the advantages that the fish liver is pretreated by the slurry ice, growth and propagation of spoilage microorganisms can be effectively delayed, the quantity increase of alkali compounds such as ammonias can be slowed down, and the freshness of the fish liver of the sinonovacula anglerfish is well kept; the slurry ice precooling method can prolong the process from the neutral stage to the rotting stage of the fresh anglerfish liver, and the method can provide technical base for processing, storage and long-distance transportation of the fresh anglerfish liver and has great significance for improving the economic value of the fresh anglerfish.

The invention discloses a cultivation method for thin-shell fragile juvenile molluscs in benthic mussels. The cultivation method comprises the following steps of: making a frame which is 4.0-9.0m long, 2.0-4.0m wide and 0.2-0.3m high by polyethylene plastic, specifically, designing the specifications of the frame according to the size and shape of a nursery pond, surrounding the bottom and periphery of the frame by a polyethylene sieve screen with hole diameters of 0.3-10mm to form a mesh box, the hole diameters of the polyethylene sieve screen being less than the sizes of the juvenile molluscs, and 30-32 polyethylene ropes being used at the four corners of the upper portion of the frame respectively and capable of lifting the mesh box; then placing the mesh box at the bottom of the nursery pond, paving fine sand or mud with a particle size of 5-10mm according to the different requirements of different benthic mussels on a substrate, placing the settled and metamorphosed juvenile molluscs in the mesh box, and carrying out juvenile mollusc cultivation. During pond transfer, the benthic juvenile molluscs are lifted by the polyethylene ropes and capable of floating with the mesh box, and the fine sand or mud is reserved at the bottom of the pond to be removed; the thin-shell fragile juvenile molluscs in the benthic mussels are the juvenile molluscs of atrina pectinata, sinonovacula constricta, solen grandis and atlantic jackknife clam. The cultivation method disclosed by the invention overcomes lots of damages and breakages on the juvenile molluscs due to pond washing and transfer.

The invention relates to a Sinonovacula biological feed which is characterized by being prepared from the following raw materials in percentage by weight: 20%-40% of fish meal, 3%-7% of blood meal, 2%-4% of beam pulp, 3%-7% of soybean hulls, 8%-12% of beam dregs, 10%-20% of food pulp, 3%-17% of cotton pulp, 10%-15% of maize protein feeds, 2%-4% of rice bran, 1%-3% of bran, 0.02%-0.05% of betaine,0.08%-0.15% of calcium hydrophosphate and 3%-8% of mixed strain meal. The invention also relates to a preparation method of the Sinonovacula biological feed. The Sinonovacula biological feed containsa great amount of active bioproteins, such as mycoprotein, extracellular mildew, amylomyces and the like, the protein content in the feed can reach 38%-40%, the prepared finished product is rich in animal proteins, vegetable proteins and mycoproteins and also contains peculiar yeast flavor. The Sinonovacula biological feed has overall nutrition, basic balance of amino acid components in the proteins and can adapt to cultivating environment and biological habits of Sinonovacula; and the micro-powdery feed has stable suspension in water and can be directly absorbed and digested by the Sinonovacula.

The invention discloses a feed additive capable of promoting the development of ovaries and vitellogenesis of blue crabs and the application of the feed additive. The feed additive is characterized by being prepared through uniformly mixing and compounding the following raw materials in parts by weight: 15-20 parts of DHA ethyl ester oil, 5-10 parts of EPA ethyl ester oil, 10-15 parts of vitamin E acetic ester, 5-10 parts of cholesterol, 5-10 parts of soybean lecithin, 2-5 parts of L-alpha-glycerophosphorylcholine, 1-3 parts of astaxanthin, 1-3 parts of soybean isoflavone, 1-3 parts of lignanoid, 20-25 parts of dried marine algae powder and 10-15 parts of sinonovacula constricta powder. The mass percentage of the additive in released feeds is 0.8-1.0%. The feed additive has the advantages that the survival rate of the blue crabs can be increased by 20-23%, the sexual gland index can be increased by 40-50%, the content of vitellogenin can be increased by 35-45%, the molecule expression quantity of the vitellogenin can be increased by 60-80%, the average weight can be increased by 25-30%, and the breeding yield can be increased by 20-22%.

The invention relates to a desalination method for spats of sinonovacula constricta (Lamarck). The method comprises the following steps that one-month-old spats are selected, salinity gradient changeof 8 days is adopted, and the target salinity is reached and kept for 3 months or above, wherein the salinity is 6 ppt in the first day, 5 ppt in the second day, 4 ppt in the third day, 3 ppt in the fourth day, 2 ppt in the fifth day, 1.5 ppt in the sixth day, 1 ppt in the seventh day and 0.5 ppt in the eighth day. By studying different salinity gradient changes, the optimal desalination method for the spats of sinonovacula constricta (Lamarck) is concluded, the desalination method is used for breeding sinonovacula constricta (Lamarck) in the 0.5-ppt environment for 3 months, the survival rateis 14.14-17.20%, and it is continuously monitored for 3 months that the survival rate and the growth of the spats of sinonovacula constricta (Lamarck) are stable. The desalination method for the spats of sinonovacula constricta (Lamarck) is put forward for the first time, lays a technical foundation for freshwater breeding of sinonovacula constricta (Lamarck), is convenient to operate and high inapplicability and has good application prospects.

The invention discloses three-dimensional cultivation technology for a seawater shoal pond, which is characterized by comprising the following steps: drying the pond after shrimps are produced in winter, and removing 10 to 20 centimeters of silt on the bottom surface of the pond; feeding water to soak the pond in the middle of February, and meanwhile performing biological agent sterilization; feeding water into the pond until the depth of water is 1.2 to 1.5 meters in the middle of March; fertilizing 1 kilogram of diammonium phosphate to water in each mu, propagating photosynthetic bacteria and seaweed to form biological baits, and controlling the salinity to between 2 to 3 percent and the pH value to between 7 and 8.6; putting seedlings of sinonovacula constricta in the middle of February, seedlings of penaeus chinesis or Japanese penaeus monodon between April 20 and May 10 and seedlings of swimming crabs in the middle of May; and enriching the water once in the middle of each month in a mode of feeding fresh small conches serving as the main baits and fish and shrimps serving as the auxiliary baits, and performing little water exchange every ten days. The technology solves the problems of single variety, low yield and poor benefit of the current seawater shoal pond cultivation, and is suitable for three-dimensional cultivation for the sinonovacula constricta, the swimming crabs, the penaeus chinesis or the Japanese penaeus monodon in the seawater shoal pond.

The invention relates to an establishment and stock breeding method for sinonovacula constricta families. The establishment and stock breeding method for the sinonovacula constricta families comprises four optimal selection processes, including, 1) carrying out the first optimal selection for parental sinonovacula constrictas so as to select parental sinonovacula constrictas with strong activity and normal body characteristics and having the weight larger than average weight by 15-20%, then selecting parental sinonovacula constrictas with the shell width / shell length proportion greater than the average proportion by 15-20%, directly placing the selected parental sinonovacula constrictas in a hasten parturition bed, and oxygenating for stimulation; 2) after oviposition and spermiation of the parental sinonovacula constrictas, carrying out the second optimal selection, pairing male and female sinonovacula constrictas with high yield to establish families, breeding the families respectively in breeding barrels until a young sinonovacula constricta period arrives; 3) when the sinonovacula constricta fries reach to about 1 cm, measuring the shell length of the sinonovacula constrictas in the families, carrying out the third optimal selection, weeding out families with high death rate and relatively slow growth speed, and transferring the rest families to an outdoor pond; 4) measuring growth data in different growth periods of the families, carrying out the fourth optimal selection, and selecting individuals with fast growth and strong activity as parental sinonovacula constrictas for next generation ofhte families, thereby carrying out stock breeding.

The invention discloses a phascolosoma esculenta pond intensive breeding system and breeding method. The system comprises a water storage area and a breeding area, and a water inlet and drainage ditchis arranged between the water storage area and the breeding area. The water storage area is internally provided with two water storage ponds, each water storage pond is composed of a water storage pond dike, a water storage pond annular ditch and a central beach face, and the central beach face is stocked with sinonovacula constricta; the breeding area is internally provided with a plurality of breeding ponds which are composed of breeding pond dikes, breeding pond annular ditches, breeding pond longitudinal ditches and a razor clam field, and phascolosoma esculenta is stocked on the razor clam field; one end of each water storage pond and one end of each breeding pond are provided with a water inlet and drainage port I and a water inlet and drainage port II connected with the water inletand drainage ditches respectively. The phascolosoma esculenta breeding method carried out by the system includes the technical links of stocking preparation, seedling stocking, medium-term separatedbreeding, breeding management, collected capture and the like. The breeding ponds are miniaturized, intensive cultivation operation management is facilitated, the breeding survival rate is high and the quality is good, both phascolosoma esculenta and sinonovacula constricta can be harvested, and economic benefits are significantly improved.

The invention discloses a sterilizing organic-inorganic spherical special fertilizer for aquaculture. The special fertilizer overcomes the problems of a single function, incapacity of meeting growth and development demands of fish and the like of conventional fertilizers. The special fertilizer is characterized in that the special fertilizer is prepared from organic fertilizer, inorganic fertilizer, zeolite powder, trace element amino acid chelate, compound sodium nitrophenolate, em probiotics, etc. through mixing and granulation. A preparation method for the special fertilizer comprises the following steps: uniformly mixing the organic fertilizer with other raw materials; then conveying the obtained mixture to a granulator for granulation; delivering the granulated material to a dryer for drying, wherein heat of the dryer is supplied by combustion of coal; subjecting the dried material to cooling and screening; and packaging the obtained finished product with a particle size of 1.5 to 3 mm and warehousing the product. The special fertilizer is applicable to culture of grass carp, crucian carp, carp, silver carp, bighead carp, catfish, tilapia, colossoma brachypomum, saltwater fish, soft-shelled turtle, mandarin fish, eel, river crab, prawn, white prawn, freshwater shrimp, Ma shrimp, macrobrachium, lobster, loach, swamp eel, sea cucumber, abalone, pearl, mussel, Sinonovacula constricta, oyster, green lipped mussel, clam, Tegillarca granosa, shellfish, laver, sea-tangle, etc.

The invention discloses a sinonovacula constricta flavoured sauce and a preparation method of the sinonovacula constricta flavoured sauce. The sinonovacula constricta flavoured sauce is characterized by mainly comprising the following raw materials in parts by weight: 30-40 parts of sinonovacula constricta muddy flesh, 12-16 parts of wheat starch, 1-2 parts of mashed onion, 6-8 parts of table salt, 3-6 parts of soybean sauce, 3-6 parts of white granulated sugar, 3-5 parts of white vinegar and 0.5-2 parts of rattan pepper, wherein the sinonovacula constricta muddy flesh is obtained by subjecting sinonovacula constricta flesh to enzymolysis by flavourzyme for 3-4 hours and the weight ratio of the flavourzyme to the sinonovacula constricta flesh is 0.04-0.06g to 100g. The sinonovacula constricta flavoured sauce has the advantages of unique sinonovacula constricta flavour, delicious taste, uniform texture, simplicity in processing technique and long shelf life. In the preparation method disclosed by the invention, the sinonovacula constricta flesh is subjected to enzymolysis by flavourzyme for 3-5 hours at the temperature of 35-50 DEG C. Thus, the method is beneficial for the decomposition of the protein of sinonovacula constricta flesh and deliciousness is enhanced. In addition, unique sinonovacula constricta flavour is formed.

The invention discloses a bottom netting laid culture method for sinonovacula constricta. The method comprises the steps: S1: subjecting a pond to desilting, pond solarization and disinfection prior to culture; S2: dressing the treated pond, so as to obtain a coated surface ready for sinonovacula constricta culture; S3: laying bottom netting on the coated surface, excavating slime from the pond, and covering the bottom netting with the slime, so as to form sinonovacula constricta furrows; S4: disinfecting the pond prior to water fertilizing so as to kill enemy organisms, then, changing water of the pond, applying water and water fertilizing paste to the pond before fry stocking; S5: placing sinonovacula constricta fries on the sinonovacula constricta furrows, which are laid with the bottomnetting, after water fertilizing; S6: keeping an aquatic environment of the pond stable, and carrying out water changing continuously; and S7: catching sinonovacula constricta in a manual excavatingcatching manner after the sinonovacula constricta grows up to an expected size. Through laying the bottom netting at lower parts of the sinonovacula constricta furrows to limit submergence depth of the sinonovacula constricta, the growth speed of the sinonovacula constricta of the same batch can be approached, the increase of efficiency of catching is facilitated, the labor cost of catching is reduced, and the culture benefit of the sinonovacula constricta is improved.

The present invention relates to the field of aquaculture and more particularly relates to a sinonovacula constricta washing and shell brushing robot for aquaculture. The sinonovacula constricta washing and shell brushing robot comprises a cylinder body, a sinonovacula constricta placing device and a shell brushing device. A PLC controller is arranged on the upper end surface of the cylinder body, the sinonovacula constricta placing device is arranged at the lower left side of the cylinder body, and the shell brushing device is located at the lower right side of the cylinder body. The whole cylinder body is in a cube structure and the cylinder body comprises a sinonovacula constricta washing zone and a shell brushing zone. The sinonovacula constricta placing device is arranged within the sinonovacula constricta washing zone and the shell brushing device is arranged within the shell brushing zone. The sinonovacula constricta placing device comprises a sinonovacula constricta placing plate, a support rod jaw, a residue resisting plate, a residue resisting air cylinder and a side resisting plate. The shell brushing device comprises a sinonovacula constricta sending belt, a sinonovacula constricta transmission block, a first transmission gear, a second transmission gear, shell brushing units and a brush sending belt. The sinonovacula constricta washing and shell brushing robot can conduct an automatic cleaning of water and sand of the washed sinonovacula constricta, can automatically wash and brush the washed sinonovacula constricta, saves the labor, improves the washing efficiency of the sinonovacula constricta and is strong in practicality.