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35 results about "Procambarus" patented technology

Procambarus is a genus of crayfish in the family Cambaridae, all native to North and Central America. It includes a number of troglobitic species, and the marbled crayfish (marmorkrebs), which is parthenogenetic. Originally described as a subgenus for four species, it now contains 161 species in 16 subgenera.

Procambarus clarkii water flower seedling cultivation environment monitoring method and system

PendingCN122656339AProcambarusHealth impact
The present application relates to the technical field of data processing, and more particularly to a method and system for monitoring the culture environment of procambarus clarkii water flower seedlings, which collects parameter values of various environmental parameters in a current period of time including the current time to form corresponding parameter value sequences; obtains risk values of the environmental parameters at the current time according to the safety range of the environmental parameters; obtains a health degree sequence of the water flower seedlings in the current period of time, and obtains the health impact of fluctuations in the various environmental parameters on the water flower seedlings according to the data fluctuation in the parameter value sequences of the environmental parameters and the data fluctuation difference between the parameter value sequences of the environmental parameters and the health degree sequence; and according to the health impact of the various environmental parameters, the risk values of the various environmental parameters at the current time are weighted and fused to obtain a risk fusion value, and the culture environment of the water flower seedlings is monitored according to the risk fusion value, thereby improving the accuracy of monitoring the culture environment of the water flower seedlings of procambarus clarkii.
Owner:YANCHENG INST OF TECH

Method and system for evaluating WSSV (white spot syndrome virus) resistance of procambarus clarkii

PendingCN121380355AClimate change adaptationMicrobiological testing/measurementHighly pathogenicProcambarus
The invention relates to the field of crayfish evaluation, and discloses a method and a system for evaluating the WSSV resistance of procambarus clarkii, and the method comprises the following steps: sampling the procambarus clarkii, extracting target tissues from a sample, and extracting total RNA (Ribonucleic Acid) for accurate quantification of concentration and synthesis of cDNA (Complementary Deoxyribonucleic Acid); then TRIM23 gene quantitative detection is carried out on procambarus clarkii through a probe method, the purpose of calculating the Ct value is achieved, and finally the WSSV resistance of the procambarus clarkii is evaluated in combination with a relative quantitative mathematical model. According to the method, high pathogenicity or virus operation is avoided, the safety of the operation process is improved, the monitoring process is greatly shortened, and the accuracy is improved.
Owner:HUNAN UNIV OF ARTS & SCI

Procambarus clarkia cleaning device

ActiveCN118696975BClimate change adaptationShellfish/bivalves grading/classificationProcambarusCrayfish
The present application relates to crayfish processing technical field, disclose a kind of crayfish cleaning equipment, including cleaning machine and the conveyer belt being arranged below the cleaning machine, the brush washing subassembly is arranged in the cleaning machine, the brush washing subassembly includes several cleaning roller groups, rotation gear is coaxially arranged at the end of the cleaning roller group, arc-shaped rack is arranged in the cleaning machine, and rotation driving part for driving the rotation of the arc-shaped rack, the rotation gear is engaged with the arc-shaped rack. The present application can realize crayfish automatic cleaning and screening process.
Owner:湖北龙生食品有限公司

Red swamp crayfish quantitative staged feeder

ActiveCN224419772UAnimal scienceProcambarus
This utility model relates to the field of aquaculture technology, specifically to a quantitative, staged feed dispenser for red swamp crayfish (Procambarus clarkii). It includes a support frame, a storage bin fixedly installed inside the support frame, a spiral feeding pipe connected to the bottom of the storage bin, a water pump connected to the other end of the spiral feeding pipe, a flexible hose connected to the top of the water pump, a nozzle connected to the other end of the flexible hose, and a rearing trough located below the nozzle. By incorporating a feed dispensing mechanism, this utility model can flexibly adjust the feed particle size and spraying range according to the growth stage of the red swamp crayfish. This not only avoids the digestive problems caused by juvenile crayfish consuming large-particle feed, or the nutritional deficiencies of adult crayfish consuming small-particle feed, but also prevents excessive feed concentration, which can lead to significant waste in high-density aquaculture environments. This achieves the effect of avoiding growth stunts caused by unsuitable particle size while ensuring uniform feed distribution and preventing localized accumulation or food shortages.
Owner:XUZHOU VOCATIONAL COLLEGE OF BIOENG

Crayfish cleaning mechanism

ActiveCN224084582UEliminate residueClimate change adaptationShrimp/lobster processingProcambarusSewage
The utility model discloses a crayfish cleaning mechanism which comprises a cleaning chamber and an elutriation chamber, a notch used for communication is formed between the cleaning chamber and the elutriation chamber, a gate is arranged at the notch in a sliding mode, a plurality of cleaning rollers are arranged in the cleaning chamber in a rotating mode, the bottom of the cleaning chamber is in a slope shape inclining towards the direction of the notch, and the gate is connected with the cleaning chamber. A first water inlet is formed in one side of the top of the cleaning chamber, a limiting plate is arranged in the washing chamber, a washing cage is arranged on the limiting plate, an opening is formed in the top of the washing cage, and the four walls and the bottom of the washing cage are each of a net-shaped structure. After washing is completed, the gate is opened, so that the crayfishes and sewage after washing slide into the washing chamber, the crayfishes are left in the washing cage, the sewage penetrates through the washing cage and is discharged from the water outlet, then water is injected into the washing chamber through the second water inlet, the crayfishes are rinsed for the second time, and sewage residues on the crayfishes are removed.
Owner:JIANGXI GAOTIAN ECOLOGICAL AGRI TECH CO LTD

Application of protocatechuic acid in regulating intestinal flora of procambarus clarkia and flavor amino acid composition in muscle of procambarus clarkia

The invention provides application of protocatechuic acid in regulating intestinal flora of procambarus clarkii and flavor amino acid composition in muscle of the procambarus clarkii, and belongs to the technical field of development of aquatic feed additives. It is found that the protocatechuic acid can reduce the abundance of Vibrionaceae in the intestinal tract level of the procambarus clarkii, improve the abundance of Rhodobacteroceae, Lactobacillus and Bacillus, reduce the abundance of Vibrio in the intestinal tract level of the procambarus clarkii, and improve the abundance of Halocynthiibacter and Ruegeria, so that the composition of flavor amino acids in the muscles of the procambarus clarkii is improved. The invention further provides a procambarus clarkii feed and application thereof in procambarus clarkii culture, the content of flavor amino acids in procambarus clarkii can be effectively increased, the muscle quality of procambarus clarkii is improved, the cost is low, and the culture method is simple.
Owner:GUANGDONG OCEAN UNIVERSITY

Underwater feed feeding equipment for procambarus clarkii

The utility model discloses underwater feed throwing equipment for procambarus clarkii, which relates to the technical field of feed throwing and comprises a culture pond, a first supporting strip, a second supporting strip and a special-shaped plate. The first supporting strip is arranged above the culture pond; the second supporting strip is arranged on the side of the first supporting strip; the special-shaped plate is connected into the second supporting strip in a sliding mode. A conveying assembly for conveying feed is arranged on the special-shaped plate, and a feeding assembly for feeding the feed is arranged at the top of the special-shaped plate; a driving assembly for driving the special-shaped plate is arranged on the second supporting strip, a moving assembly for moving the second supporting strip is arranged on the first supporting strip, a lifting assembly for lifting the first supporting strip is arranged on the first supporting strip, through the throwing assembly, the effect of throwing fodder underwater is achieved, the fodder is prevented from being directly scattered on the water surface, and the fodder throwing efficiency is improved. The problem that the procambarus clarkii floats away due to the action of wind blowing, flowing water or diffusion and cannot sink into the underwater area where the procambarus clarkii often moves is solved.
Owner:JILIN AGRICULTURAL UNIV

Procambarus clarkia orientation correcting device

PendingCN122229070AShrimp/lobster processingProcambarusAquatic product
A crayfish orientation correction device is characterized by: a funnel-shaped conveyor belt, a rotating wheel, and a connecting rod. The funnel-shaped conveyor belt feeds the crayfish, and the frame-shaped rotating wheel feeds the crayfish. The inclined guide surface cooperates with the frame-shaped rotating wheel to complete the orientation correction and quantitative conveying of the crayfish, solving the problems of complex conveying structure and random crayfish posture in existing automatic aquatic product processing equipment.
Owner:BEIJING FORESTRY UNIVERSITY

Intensive breeding device for procambarus clarkii and intensive artificial breeding method thereof

The invention discloses an intensive breeding device of procambarus clarkii and an intensive artificial breeding method of the procambarus clarkii, and relates to the technical field of aquaculture. The intensive breeding device comprises a parent shrimp inhabiting and mating nest structure and an egg-carrying shrimp hatching and larva breeding nest structure which are arranged in a parent shrimp breeding pond and a hatching and larva breeding pond respectively. The parent shrimp inhabiting and mating nest structure comprises an inhabiting frame and an inner nest body, the inhabiting frame is a right trapezoid frame body, and multiple layers of partition plates are arranged in the middle of the right trapezoid frame body; the inner nest body is a right trapezoid body, and a plurality of inhabiting nests are formed in the inner nest body; an egg-carrying shrimp hatching and larva breeding nest structure comprises a hatching and breeding frame, hatching nest units and side nets. According to the device, the space utilization rate of the parent shrimps and the larvae in the parent shrimp breeding pond and the hatching and larva breeding pond is effectively increased, and the bearing number and the breeding density of the parent shrimps and the larvae in unit water are greatly increased. The invention further discloses an intensive artificial breeding method, intensive and batch production of egg-carrying shrimps and juvenile shrimps of the procambarus clarkii is achieved, and the productivity can be improved by more than 5 times.
Owner:HUNAN PROVINCIAL QUALITY AQUATIC ORGANISM BREEDING & PROCESSING RESEARCH INSTITUTE CO LTD

Crayfish feed feeding device capable of automatically adjusting feeding amount

The utility model belongs to the field of agriculture, and particularly relates to a crayfish feed feeding device capable of automatically adjusting the feeding amount, a plurality of buoyancy driving assemblies are arranged outside a bottom plate, a sonar detector is arranged on the lower end face of each buoyancy driving assembly, a material stirring barrel is arranged above the bottom plate, a plurality of stirring scrapers are rotationally arranged in the material stirring barrel, and the stirring scrapers are arranged in the bottom plate. A rotating plate is rotationally arranged on the outer side of the lower end face of each stirring scraping plate, a plurality of discharging holes are formed in the inner bottom face of the material stirring barrel, a second discharging baffle is rotationally arranged on the portion, on the lower end face of the material stirring barrel, in each discharging hole, and a limiting piece is arranged on the portion, on the upper end face of each second discharging baffle, in the material stirring barrel; and a feed storage assembly is arranged above the mixing barrel. Through the arrangement of the sonar detector and other structures, the device can detect the number of the crayfishes in a water area, quantitative feeding is conducted according to the number and density of the crayfishes, and therefore the low growth rate of part of the crayfishes caused by uneven feed feeding is effectively avoided.
Owner:ZHEJIANG XINGAO AGRICULTURAL TECHNOLOGY CO LTD

SNP molecular marker related to growth performance of procambarus clarkii and application thereof

The application discloses a SNP molecular marker related to growth performance of Procambarus clarkii, which is located in the second last intron region of an insulin-like growth factor receptor gene of the Procambarus clarkii, and specifically at the 42659th bp of the full-length genome, and the alleles are C and T, wherein the average body weight of an individual with a TT genotype is significantly greater than that of an individual with a CC genotype and an individual with a CT genotype. The application further discloses primers for amplifying the SNP molecular marker and a growth performance typing identification method of the Procambarus clarkii, and has important significance in improving the growth performance and breeding efficiency of offspring shrimps, increasing the breeding yield and income and the like.
Owner:HUAZHONG AGRI UNIV

Procambarus clarkia head and intestine integrated automatic processing equipment

PendingCN122229068AShrimp/lobster processingAnimal scienceProcambarus
This invention discloses an integrated automatic processing equipment for crayfish deheading and deveining, characterized by its relevance to the field of aquatic product processing technology. The equipment includes a frame, a feeding and conveying mechanism, a chain-type clamping and conveying mechanism, an orientation mechanism, a deheading mechanism, a deveining mechanism, and a diversion and collection mechanism. The feeding and conveying mechanism orderly conveys the crayfish to the crayfish clamps; the orientation mechanism uses visual recognition and mechanical correction to maintain a uniform orientation of the crayfish; the deheading mechanism removes the crayfish heads; the deveining mechanism uses a synchronous chain to drive a wire-stripping clamping and pulling assembly to extract the intestines; and the diversion and collection mechanism separately collects the crayfish heads and tails. This invention achieves continuous automated processing of crayfish from orderly feeding, head and tail orientation, deheading, deveining to diversion and collection, solving the problems of low manual efficiency and poor hygiene. It has the advantages of integrated operation, accurate orientation, reliable clamping, low damage, and hygiene friendliness.
Owner:WUCHANG SHOUYI UNIV +1

Intelligent monitoring and adjusting device for water quality of procambarus clarkii breeding

ActiveCN224440108UProcambarusSludge
This utility model discloses an intelligent monitoring and regulation device for water quality in red swamp crayfish farming, relating to the field of red swamp crayfish farming technology. It includes a base plate, with a farming pond located at one end of the upper surface of the base plate. A top plate is fixedly connected to the upper surface of the farming pond. A waste bin is fixedly connected to the end of the upper surface of the base plate away from the farming pond. A waste discharge and aeration mechanism is installed at the waste bin and the upper surface of the top plate. A water exchange tank is fixedly connected to the end of the upper surface of the base plate away from the waste bin, and a water exchange mechanism is installed at the top of the water exchange tank. A multi-parameter processor collects key water quality parameters such as pH, dissolved oxygen, and temperature in real time. Once the data exceeds a threshold, the central processor automatically triggers the servo motor, sludge suction pump, water exchange pump, and return pump to work collaboratively. This completely eliminates the limitations of manual inspection and adjustment, achieving full automation of water quality monitoring, analysis, and regulation, significantly improving the efficiency of aquaculture environment regulation and effectively reducing labor costs.
Owner:XUZHOU VOCATIONAL COLLEGE OF BIOENG

A method for cave culture of procambarus clarkii seedlings

A method for cave cultivation of procambarus clarkia seedlings, comprising the following steps: rice field selection, rice planting, parent shrimp preparation before stocking, parent shrimp stocking, parent shrimp cultivation, stress cave digging and cave entering, field drying, rice harvesting, rice stubble green-up, cave cultivation, induced cave exiting and cage catching; wherein the rice field selection is to select a rice field with sufficient water source and convenient irrigation and drainage, the relative two sides of the field have height difference, the field ridge is reinforced and has a mouse, frog and snake prevention iron fence, and a polyethylene net is surrounded along the inner side of the field ridge; the parent shrimp stocking is to stock female parent shrimp with ovary maturity of stage III, and the female to male ratio is 1:1; the parent shrimp cultivation comprises feed feeding, water quality control and daily management; the stress cave digging and cave entering is to drain water; the rice harvesting is after the field drying; the rice stubble green-up is to keep shallow water to promote growth after the rice harvesting until new grass seedlings are generated; the cave cultivation is to regularly pour horse race water rich in food; and the induced cave exiting is to induce by water injection and feed feeding. The cave cultivation method can improve the survival rate of the seedlings and the parent shrimp.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION AQUATIC BREEDING CENT +1

Anti-lipopolysaccharide factor of procambarus clarkia and antibacterial application of core antibacterial structural domain of anti-lipopolysaccharide factor

The invention discloses an anti-lipopolysaccharide factor of procambarus clarkia and antibacterial application of a core antibacterial structural domain of the anti-lipopolysaccharide factor, and belongs to the technical field of genetic engineering and molecular immunology. According to the technical scheme, the gene sequence of the procambarus clarkia anti-lipopolysaccharide factor is shown as SEQ ID No.1 and SEQ ID No.4 in a sequence table. The invention further specifically discloses an expression method of prokaryotic protein of the procambarus clarkia anti-lipopolysaccharide factor and an identification and synthesis method of a core antibacterial structural domain. The aeromonas hydrophila and the procambarus clarkii can be used for remarkably killing the aeromonas hydrophila in vivo and in vitro, and the survival rate of the procambarus clarkii infected with the aeromonas hydrophila can be remarkably improved. The anti-lipopolysaccharide factor and the core antibacterial structural domain thereof are stable in structure, simple to prepare, definite in component, safe and stable, and can effectively prevent the procambarus clarkii from death caused by bacterial infection.
Owner:HENAN NORMAL UNIV

Crayfish processing equipment

The invention discloses a crayfish processing device which comprises a workbench and a discharging device, and a conveying track is formed on the workbench. The discharging equipment comprises a clamp and a portal frame. The clamp is installed on the workbench in a sliding mode and can slide along the conveying track and pass through a discharging position. The clamp is used for clamping the crayfish and loosening the crayfish when the crayfish reaches the discharging position. The portal frame comprises two vertical rods arranged in the vertical direction and a transverse rod arranged in the horizontal direction and connected between the tops of the two vertical rods, the discharging position is located between the two vertical rods and located below the transverse rod, and a baffle is fixed to the position, corresponding to the discharging position, of the lower side face of the transverse rod. The baffle is used for pushing the crayfish located at the discharging position away from the clamp.
Owner:WUHAN POLYTECHNIC UNIVERSITY

A vitamin a, d fortified feed for promoting the molting and growth of procambarus clarkia larvae

The application discloses a kind of vitamin A, D fortified feed for promoting procambarus clarkia larva to shed shell and grow, belongs to the technical field of aquaculture feed.The protein source raw material fish meal, soybean meal, cottonseed protein, rapeseed meal, peanut meal and corn DDGS in the feed, sugar source raw material wheat flour and fat source raw material soybean oil, soybean phospholipid oil also include compound vitamin, compound mineral, sodium alginate, calcium dihydrogen phosphate, yeast powder, sodium chloride, choline chloride, chitosan, threonine, lysine, methionine.The key nutrient vitamin A in the feed is added to 9000~27000 IU / kg, and the addition amount of vitamin D is 6000~12000 IU / kg.The procambarus clarkia feed of the application is the feed obtained by reasonable deployment, can fully meet the vitamin nutritional requirement of procambarus clarkia larva, can effectively improve the growth performance and feed utilization rate of procambarus clarkia larva, and increase the output of aquaculture.
Owner:YANGTZE UNIVERSITY

Compound feed for crayfish and preparation method of compound feed

The invention discloses a compound feed for crayfish and a preparation method of the compound feed. Comprising the following raw materials: 15-20 parts of fish meal, 5-8 parts of shrimp meal, 20-26 parts of flour, 10-15 parts of corn flour, 5-10 parts of wheat bran, 15-20 parts of a fermented compound, 15-20 parts of extruded soybeans, 3-4 parts of fish oil, 3-4 parts of a functional composite additive, 2-3 parts of a premix, 1-2 parts of monocalcium phosphate, 0.3-0.5 part of table salt and 0.1-0.2 part of betaine. According to the compound feed, basic nutritional raw materials in scientific proportion are combined with a specially-made fermentation compound and a functional compound additive, and are formed under a specific hard particle preparation process, so that systematic meeting of digestive physiology and health requirements of the crayfish is realized; the intestinal micro-ecological balance of the crayfish is remarkably improved, the feed utilization rate is increased, and the disease resistance and the stress resistance of organisms are enhanced.
Owner:HUBEI JIAKANG BIOTECHNOLOGY CO LTD

A method for breeding procambarus clarkii in spring in a rice field with continuous cropping of rice

This invention relates to a method for spring breeding of broodstock larvae of Procambarus clarkii in rice-vegetable rotation fields, belonging to the field of broodstock larvae breeding. The invention utilizes a rice-crayfish-vegetable crop rotation system, setting up artificial burrows, rainproof black antioxidant plastic film, field drainage ditches, fishing nets and basket traps, and broodstock removal and temporary holding facilities at different stages of broodstock reproduction. By rotating vegetables in winter and spring, the rice paddies are drained and moisturized, achieving the goal of spring breeding of broodstock larvae in rice-vegetable rotation fields. This invention fully utilizes the characteristics of rice, water spinach, and crayfish farming, delaying the emergence time of broodstock larvae, increasing broodstock yield and collection efficiency, and increasing broodstock larvae production. It enables seamless integration of broodstock larvae supply with crayfish farming in the cold regions of Northeast China, promoting the rapid development of the crayfish industry in northern my country and achieving increased production and efficiency. Furthermore, this method can increase the planting area of ​​water spinach in farmland, improve soil, and solve the problem of long-term waterlogging and siltation in the soil.
Owner:FISHERIES RES INST ANHUI ACAD OF AGRI SCI +3

Crayfish breeding substratum

The utility model belongs to the field of crayfish breeding, and particularly relates to a crayfish breeding substratum which is characterized in that a plurality of through holes are formed in the upper end face of a fixing plate, a collecting barrel is arranged in each through hole, and a plurality of first leaking holes are formed in the outer circle face of each collecting barrel; a second object sensor is arranged at the position, above the fixing plate, of one side of an upper end opening of each collecting barrel, a feed frame is arranged at the position, on the end face of the fixing plate, of the other side of the upper end opening of each collecting barrel, a first object sensor is arranged in each feed frame, and an oxygen supplementing assembly is arranged on one side of the fixing plate. Through the arrangement of structures such as the collecting barrel, the plurality of protective barrels and the collecting barrel are inserted into positions suitable for nesting of the crayfishes, so that a crayfish nest closer to natural crayfishes is formed in the collecting barrel, and breeding of the crayfishes is facilitated; through the arrangement of a second object sensor and the like, the activity condition of the crayfish is conveniently monitored, so that whether the crayfish carries eggs or not is judged, and cubs are collected in time.
Owner:ZHEJIANG XINGAO AGRICULTURAL TECHNOLOGY CO LTD

Artificial nest for factory breeding of procambarus clarkii

The utility model relates to the technical field of procambarus clarkii breeding, in particular to a procambarus clarkii factory breeding artificial nest which comprises a base plate and connecting pieces, a plurality of sets of connecting pieces are arranged on one side of the base plate, and each connecting piece further comprises a connecting block, a positioning block and a spring. The base plates on the two sides are placed in a mirror image mode, the connecting block of the base plate on one side slides into the connecting groove of the base plate on the other side along the end of the base plate on the other side, the connecting block of the base plate on the other side abuts against the connecting groove of the base plate on one side, the base plates on the two sides are limited through the protruding strips and the grooves, and the locating blocks are matched with the locating holes, so that the base plates on the two sides are fixed. The base plates on the two sides are not limited, so that the base plates on the two sides are assembled, nests of different sizes can be rapidly assembled according to the needed breeding conditions, the base plates on the two sides are separated, then the nests can be rapidly disassembled, and the interiors of the nests can be conveniently cleaned.
Owner:JILIN AGRICULTURAL UNIV

A high-density environmentally-friendly culture method and culture equipment for procambarus clarkii

A high-density environmentally-friendly culture method and culture equipment for procambarus clarkii, relates to the technical field of culture method, comprising the following steps: S1, providing several culture ponds, the size of the culture ponds is different, to culture shrimp fry with different development stages; S2, adding shrimp fry in the smallest culture pond; S3, after the shrimp fry develops to a certain size, the shrimp fry is transferred to a larger culture pond, the original culture pond is cleaned, and a new batch of shrimp fry is added to the original culture pond; S4, repeat step S3 until the shrimp fry develops to a specified size. By using culture ponds of different sizes to culture shrimp fry of different development levels, on the one hand, the utilization efficiency of the culture space can be improved, on the other hand, the amount of water and feed used for culture can be adjusted according to the development level, avoiding excessive water use and overfeeding, thereby reducing the degree of environmental pollution during culture.
Owner:梅州隆森生态农业科技有限公司

Breeding method of low-temperature-resistant procambarus clarkii

The invention discloses a breeding method of low-temperature-resistant procambarus clarkii, and belongs to the technical field of shrimp breeding. The breeding method comprises the following steps: collecting a procambarus clarkii population overwintering and surviving in the north, temporarily rearing, then carrying out a population low-temperature resistance test to obtain a low-temperature-resistant candidate population, carrying out ingestion detection to obtain low-temperature-resistant individuals, and then selecting the low-temperature-resistant individuals or the low-temperature-resistant candidate population to carry out artificial matching breeding. After the fertilized eggs are hatched into membrane larvae, conventional culture is carried out, and the low-temperature-resistant procambarus clarkii is obtained. The breeding method disclosed by the invention is based on physiological and behavioral characteristics of the procambarus clarkii at a low temperature level, is scientific and reasonable, is simple to operate, provides a reliable technical means for breeding the low-temperature-resistant procambarus clarkii, and can promote industrial development of the procambarus clarkii.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1

Procambarus clarkii parent feed and preparation method thereof

The invention relates to the technical field of aquaculture, and discloses a procambarus clarkii parent feed and a preparation method thereof. According to the procambarus clarkii parent feed provided by the invention, by systematically optimizing the amino acid composition mode of the feed and reconstructing the proportion of key functional amino acids such as methionine, lysine and the like, the precise regulation and control and human intervention on the parent gonad development process are realized, the parent gonad development tends to be synchronous, the parent mature period is concentrated, and the procambarus clarkii parent feed can be used for breeding procambarus clarkii. The technical problems that in a traditional breeding mode, individual development is not synchronous, and the breeding cycle is scattered are effectively solved. After the female juvenile shrimps are fed with the feed for 80 days, the gonad development synchronism is remarkably improved, the follicle proportion, the maturation coefficient and the gonad weight in the maturation period are remarkably increased, the egg carrying rate can reach 95% or above, the single-tail seedling emergence amount exceeds 330, the parent reproductive performance is remarkably improved, and the survival rate of the female juvenile shrimps is remarkably increased. And a stable and high-quality parent guarantee is provided for facility, factory and large-scale artificial breeding of the procambarus clarkii water spray seedlings.
Owner:HUNAN FISHERIES RESEARCH INSTITUTE (HUNAN FISHERIES ORIGINAL SEED SITE)

Procambarus clarkia embryo rapid freezing method and application

PendingCN122271299ABiotechnologyProcambarus
This invention belongs to the field of aquaculture breeding technology, and discloses a method and application for rapid freezing of Procambarus clarkii embryos, comprising the following steps: collecting and pre-treating embryos; vitrification freezing, including: transferring embryos into ES solution, equilibrating at room temperature for 10–15 min to allow initial penetration of the cryoprotectant and slight cell dehydration; transferring embryos into VS solution, precisely equilibrating at room temperature for 40 s, quickly picking 10–20 embryos with a carrier, and aspirating excess VS solution; rapid freezing, including: immediately immersing the carrier vertically into liquid nitrogen within 1 second, achieving a cooling rate of >20,000℃ / min; and quickly inserting the carrier into the freezing rack of the liquid nitrogen tank for long-term preservation. This rapid freezing method requires only about 15 minutes for the entire freezing process, and is highly efficient. The vitrified embryos are free of ice crystals, and the embryo structure remains intact. Long-term preservation is possible, ensuring stable germplasm resources.
Owner:JILIN AGRICULTURAL UNIV

Intensive artificial breeding method of procambarus clarkii

ActiveCN121336756BBroodstockProcambarus
A method for intensive artificial breeding of *Procambarus clarkii* (red swamp crayfish) relates to the field of aquaculture technology. This intensive breeding device includes broodstock nesting and mating structures and berried crayfish hatching and larval rearing structures, respectively installed in broodstock rearing ponds and hatching and larval rearing ponds. The broodstock nesting and mating structures include a perch frame and an inner nest. The perch frame is a right-angled trapezoidal frame with multiple partitions in the middle. The inner nest is also a right-angled trapezoidal body with multiple perch burrows inside. The berried crayfish hatching and larval rearing structures include a hatching and rearing frame, hatching nest units, and side nets. This device effectively improves the space utilization rate of broodstock and larvae in the broodstock rearing ponds and hatching and larval rearing ponds, significantly increasing the carrying capacity and stocking density of broodstock and larvae per unit water volume. This invention also discloses an intensive artificial breeding method, realizing the intensive and large-scale production of berried crayfish and larvae of *Procambarus clarkii*, increasing production capacity by more than five times.
Owner:HUNAN PROVINCIAL QUALITY AQUATIC ORGANISM BREEDING & PROCESSING RESEARCH INSTITUTE CO LTD

Procambarus clarkia aquatic product automatic repeated brushing equipment

This invention discloses an automated repetitive scrubbing device for crayfish aquatic products, relating to the field of aquatic product processing technology. It includes a base plate with a waterproof cover connected to it via a sliding mechanism. An installation plate is fixedly connected inside the waterproof cover, and side plates are fixedly connected to both sides of the installation plate. A first toothed plate is slidably connected between the two side plates. The first toothed plate extends through the waterproof cover and is fixedly connected to a main body of the scrubbing device. A rotating mechanism is installed inside the main body of the scrubbing device, including a rotating column rotatably connected inside the main body. Through the cooperation of a sun gear, planetary gears, and toothed grooves, the cleaning brush rotates on its own axis while simultaneously revolving around a central point. This overcomes the limitations of existing equipment that only performs single rotation or linear reciprocating motion, enabling thorough and repeated scrubbing of the crayfish's back, abdomen, joint crevices, and appendage roots, significantly improving cleaning uniformity.
Owner:HUNAN YUANJIANG TOWNSHIP LIWA FOOD CO LTD

Standardized vibration stress screening method for transportation tolerance of procambarus clarkia and application of standardized vibration stress screening method in polymerization breeding

PendingCN121867131Aimprove survival rateScreening method is accurate and reliableClimate change adaptationPisciculture and aquariaAnimal scienceProcambarus
The invention discloses a standardized vibration stress screening method for transport resistance of procambarus clarkii and application of the standardized vibration stress screening method in aggregation breeding, and the screening method comprises the following steps: simulating a long-distance road transport core vibration spectrum, setting standardized mechanical oscillation parameters with the frequency of 150 + / -5 rpm, the amplitude of 2.0 + / -0.5 cm and the duration of 18 + / -0.5 hours, and screening the transport resistance of procambarus clarkii. The procambarus clarkii is subjected to stress treatment in a specific water body environment, and after the procambarus clarkii is recovered for 24 + / -1 hours, transport-resistant individuals are judged according to the standard that active ingestion is more than or equal to 3 times within 1 hour and appendages are complete. The screening method is further used as a core tool, a'sequential forced screening 'pyramiding breeding procedure is embedded, the transport-resistant character is fixed firstly, then the growth character is screened, and the genetic negative correlation between the growth speed and the transport-resistant character is effectively broken. According to the method, screening is accurate and repeatable, the survival rate of the cultivated new strain reaches 93% or above after transportation, the growth performance is excellent, and the problem of industrial transportation loss is solved from the germplasm source.
Owner:GUANGXI ACADEMY OF FISHERY SCI

Procambarus clarkii culture multi-source data supervision method

PendingCN121765227AClimate change adaptationProcambarusMulti source data
The invention relates to the technical field of data processing, in particular to a procambarus clarkia culture multi-source data supervision method, which comprises the following steps: acquiring a multi-dimensional monitoring data sequence in a culture pond; for the monitoring data sequence of any dimension, acquiring the change degree of each piece of data in the monitoring data sequence, and determining target data in the monitoring data sequence based on the change degree; obtaining distribution characteristics of the target data, wherein the distribution characteristics at least comprise neighborhood distribution characteristics obtained by neighborhood data and multi-source distribution characteristics obtained by monitoring data of other dimensions in the same period; determining noise data in the monitoring data sequence based on the distribution characteristics; and the noise data is de-noised, so that the accuracy of noise data monitoring is improved, and the problem of relatively poor accuracy of abnormal data monitoring is solved.
Owner:YANCHENG INST OF TECH

Application of combination of silibinin and chenodeoxycholic acid in improvement of quality reduction of procambarus clarkia caused by zero fish meal feed

PendingCN122030504AClimate change adaptationAccessory food factorsCholic acidChenodeoxycholic acid
The invention provides application of silybin and chenodeoxycholic acid in improving the quality reduction of procambarus clarkia caused by zero-fish-meal feed, and belongs to the technical field of aquatic feed additive development. According to the present invention, silibinin and chenodeoxycholic acid are combined according to a mass ratio of (1-2): (1-2) so as to effectively improve the reduction of the quality of the procambarus clarkia caused by the zero fish meal feed, such that the zero fish meal use is achieved, and the procambarus clarkia breeding method is suitable for the procambarus clarkia breeding of procambarus clarkia breeding of procambarus clarkia breeding of procambarus clarkia breeding of procambarus clarkia. The feed cost can be effectively reduced, and the muscle quality of the procambarus clarkii cannot be reduced.
Owner:GUANGDONG OCEAN UNIVERSITY