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38 results about "Paramisgurnus dabryanus" patented technology
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Paramisgurnus dabryanus is a species of loach occurring in East Asia from Russia to China and Taiwan. It is the only species in its genus.
Method for cultivating Paramisgurnus dabryanus with standardized rice field
InactiveCN104054602AQuality improvementNew technologyClimate change adaptationPisciculture and aquariaPollutionAquaculture
A method for cultivating Paramisgurnus dabryanus with a standardized rice field relates to the technical field of aquaculture. The method comprises the following steps: selecting a Paramisgurnus dabryanus cultivating rice field, building facility, preparing for stocking of young Paramisgurnus dabryanus, determining stocking density, cultivating, managing, feeding, preventing predator, catching Paramisgurnus dabryanus, and transporting. The method has the advantages that the method fully utilizes the production resources, no special equipment is needed, no cultivation pollution is generated, the cultivating technology is standardized, the feeding is scientific and standardized, the technology is ingenious, the quality of aquaculture is improved to a great extent, and the benefit is increased.
Owner:安徽省淮王渔业科技有限公司
Method for breeding paramisgurnus dabryanus fries
InactiveCN102893936AImprove survival rateClimate change adaptationPisciculture and aquariaAnimal scienceNutrition
Owner:杨壮志
Paramisgurnus dabryanus selective breeding method
ActiveCN104351096APracticalLow costMicrobiological testing/measurementClimate change adaptationMicrosatelliteElater
The invention discloses a paramisgurnus dabryanus selective breeding method. Concretely, the method comprises the following steps that (1) 12 microsatellite molecular markers relevant to the growth properties are provided; (2) a parent group 1 is selected for electronic marking and DNA (deoxyribonucleic acid) extraction; (3) the molecular markers are adopted for carrying out genotype screening on the parent group 1, and in addition, a parent group 2 is selected; (4) the molecular markers are adopted for carrying out genotype screening on the parent group 2, and parent groups 3 and 4 with different homozygous genotypes are respectively built; (5) the parent groups 3 and 4 are used as breeding groups to be respectively subjected to artificial reproduction to obtain parent groups 5 and 6; (6) hybridization is carried out between the parent groups 5 and 6, and in addition, scaled reproduction is carried out. Compared with a conventional breeding method, the method has the characteristics of high speed, stability and reliability, the practicability is high, the cost is low, the accuracy is high, the influence due to factors such as environment is avoided, the relying on the phenotypic character authentication can be avoided, the breeding years are shortened, the breeding efficiency is improved, and great application values are realized.
Owner:SUZHOU UNIV
Artificial propagation method for paramisgurnus dabryanus first-filial generation
InactiveCN104054605AQuality improvementNew technologyClimate change adaptationPisciculture and aquariaFishingPollution
An artificial propagation method for paramisgurnus dabryanus first-filial generation relates to the technical field of aquiculture and comprises the following steps: parent cultivation, pond management, artificial propagation, egg laying and hatching and in-time fishing. The artificial propagation method has the benefits that the production resource is fully utilized, special equipment is not required, raising pollution is avoided, the raising technology is standard and normalized, feeding is scientific and normalized, the technology is novel, the aquiculture quality is improved to a great extent, and accordingly, the profit is increased.
Owner:安徽省淮王渔业科技有限公司
Preservation solution, activation solution and hatching method for Paramisgurnus dabryanus sperms
InactiveCN107711822AIncrease vitalityImprove fertilization rateClimate change adaptationDead animal preservationSodium bicarbonatePotassium
The invention discloses a preservation solution, an activation solution and a hatching method for Paramisgurnus dabryanus sperms, belonging to the technical field of aquaculture. The sperm preservation solution comprises the following components: 0.5% to 1.0% of trisodium citrate, 1.0% to 3.0% of glucose, 0.1% to 0.3% of sodium bicarbonate, 0.02% to 0.04% of potassium chloride and 0.01% to 0.02% of VC; the activation solution comprises the following components: 1 to 2% of glucose and 0.35% of sodium chloride; and the hatching method comprises the following steps: activating sperms preserved with the sperm preservation solution by using the activation solution, allowing the sperms to combine with eggs, placing fertilized eggs on a mesh, and carrying out hatching in static water. Compared with the prior art, the invention has the following advantages: through innovation of the activation manner of the Paramisgurnus dabryanus sperms in a specific sperm preservation solution, the maximum vitality of the sperms can be guaranteed; the fertilization rate and the hatching rate of fish eggs are improved; and the fry breeding production is guided.
Owner:FISHERIES RES INST ANHUI ACAD OF AGRI SCI
Method for producing allopolyploid misgurnus anguillicaudatus through inhibiting fertilized egg polar body release
InactiveCN104396812AHigh induction rateRich varietyClimate change adaptationPisciculture and aquariaWeight gainingWeatherfish
The invention discloses a method for producing allopolyploid misgurnus anguillicaudatus through inhibiting fertilized egg polar body release. According to the method, diploid misgurnus anguillicaudatus, tetraploid misgurnus anguillicaudatus and paramisgurnus dabryanus are adopted as propagation parents and are used for hybrid fertilized eggs, such that the hybrid fertilized eggs are obtained; on the 5th minute after the hybrid fertilized eggs are obtained, the hybrid fertilized eggs are soaked in ice water with a temperature of 2-3 DEG C for cold shock treatment with a duration of 30-35min; and the eggs are hatched and cultured under room temperature, such that misgurnus anguillicaudatus allopolyploids are obtained. With the method, allotriploid misgurnus anguillicaudatus, allotetraploid misgurnus anguillicaudatus and allopentaploid misgurnus anguillicaudatus can be obtained. With the method, the induced misgurnus anguillicaudatus allopolyploid variety number is high, and the amount is high. The induction success rate is high, and the offspring growth is fast. With the method, the weight of 12-month-age misgurnus anguillicaudatus is increased by an average of -19.99% to 142.34% than that of a normal selfing control group. The weight gain effect is significant. The method has high popularization benefit.
Owner:HUAZHONG AGRI UNIV
Grading cultivation method of paramisgurnus dabryanus fries
ActiveCN110150200AImprove survival rateReduce the impactFood processingClimate change adaptationYolkObserved Survival
The invention discloses a grading cultivation method of paramisgurnus dabryanus fries. The method includes carrying out primary cultivation on yolk fries of the paramisgurnus dabryanus to a total length of 1-1.5cm under a density of 50000 tails / cubic meter; then carrying out secondary cultivation to a total length of 2-2.5cm under a density of 10,000-20,000 tails / cubic meter;and finally, carryingout tertiary cultivation to a total length of 4-5cm under a density of 400-500 tails / cubic meter. According to the method, before the yolk fries of the paramisgurnus dabryanus grows to 2-2.5cm, the yolk fries of the paramisgurnus dabryanus is cultivated under the protection of a cultivation pool, so that the influence of pests on the yolk fries of the paramisgurnus dabryanus is reduced; when theyolk fries of the paramisgurnus dabryanus grows to 2-2.5cm, the eating of the pests can be resisted; and after the yolk fries of the paramisgurnus dabryanus grows to a total length of 4-5cm through three-grade cultivation, the yolk fries of the paramisgurnus dabryanus can instead take the pests as baits, so that the survival rate of the paramisgurnus dabryanus is greatly improved.
Owner:GUANGXI ACADEMY OF FISHERY SCI
Cold shock induction method for paramisgurnus dabryanus androgenesis haploid
InactiveCN103651195ARapid productionEfficient productionClimate change adaptationPisciculture and aquariaPlant Germ CellsSemen
The invention discloses a cold shock induction method for a paramisgurnus dabryanus androgenesis haploid. The cold shock induction method for the paramisgurnus dabryanus androgenesis haploid is characterized by comprising the following steps that parturition hastening is conducted on paramisgurnus dabryanus good in gonad development, semen of male paramisgurnus dabryanus and eggs of female paramisgurnus dabryanus are taken respectively, and the obtained semen is diluted by 80-120 times through the Kurokura's solution; the diluted semen and eggs are mixed for forming germ cells, the germ cells are put into water at the temperature of 2.5-3.5 DEG C, cold shock processing is conducted for 50-70 minutes, and then the germ cells are put into the water at normal temperature for incubation. The cold shock induction method for the paramisgurnus dabryanus androgenesis haploid does not need egg inactivation, and can produce the paramisgurnus dabryanus androgenesis haploid rapidly and efficiently.
Owner:DALIAN OCEAN UNIV +1
High-density cultivation method for paramisgurnus dabryanus first-filial generation
InactiveCN104054604AQuality improvementNew technologyClimate change adaptationPisciculture and aquariaHigh densityAquatic product
A high-density cultivation method for paramisgurnus dabryanus first-filial generation relates to the technical field of aquiculture and comprises the following steps: preparing a loach pond, cultivating a fingerling and controlling diseases. The high-density cultivation method has the benefits that the production resource is fully utilized, special equipment is not required, raising pollution is avoided, the raising technology is standard and normalized, feeding is scientific and normalized, the technology is novel, the aquiculture quality is improved to a great extent, and accordingly, the profit is increased.
Owner:安徽省淮王渔业科技有限公司
Identification method for hybrid species of paramisgurnus dabryanus and misgurnus anguillicaudatus
InactiveCN105543387AEfficient identificationMicrobiological testing/measurementBiotechnologyCosmarium angulosum
The invention discloses an identification method for hybrid species of paramisgurnus dabryanus and misgurnus anguillicaudatus. The method comprises the following steps: (1) carrying out mutual interspecies amplification by virtue of two types of microsatellite markers of the paramisgurnus dabryanus and the misgurnus anguillicaudatus to find out specific markers of the paramisgurnus dabryanus and the misgurnus anguillicaudatus; (2) respectively carrying out PCR amplification on the three markers in the step (1) by taking the DNA of the misgurnus anguillicaudatus to be identified as a template so as to obtain three types of PCR amplification products; and (3) respectively carrying out gel electrophoresis analysis on the three types of PCR amplification products, and when an electrophoretogram of the PCR amplification products shows that a tested sample has three belts marked by Pda71, Mac287 and Mac375, determining the tested sample as a hybrid species misgurnus anguillicaudatus. The identification method disclosed by the invention not only can quickly and effectively identify the hybrid species of the paramisgurnus dabryanus and the misgurnus anguillicaudatus, but also can identify whether the male parent and the female parent of the hybrid species misgurnus anguillicaudatus are the misgurnus anguillicaudatus or the paramisgurnus dabryanus.
Owner:刘海金
High protein feed for reproduction period of paramisgurnus dabryanus and preparation method thereof
InactiveCN106333134AIncrease contentEnsure food intakeFood processingClimate change adaptationManufacturing technologyAnimal science
A high protein feed for the reproduction period of paramisgurnus dabryanus relates to the technical field of aquaculture and is prepared from the following raw materials (by weight): 3-5 parts of wheat powder, 2-4 parts of corn flour, 3-5 parts of wheat bran, 2-4 parts of rice bran, 3-5 parts of bean dregs, 6-8 parts of silkworm chrysalis meal, 3-5 parts of tenebrio molitor powder, 5-7 parts of dried-powder of housefly larvae, 3-5 parts of amino acid, 5-7 parts of vitamin mixed component, 2-4 parts of aliphatic acid, 2-4 parts of an adhesive and 6-8 parts of mineral powder. The invention has the following beneficial effects: raw materials are rich and cheap; the manufacture technology is simple; by introducing animal materials into common cereal materials, content of protein is increased; and micro-materials are added, immunity is raised, and ingestion requirement of paramisgurnus dabryanus in the reproduction period is guaranteed.
Owner:安徽省淮王渔业科技有限公司
Paramisgurnus-dabryanus developmental-phase compounded feed and preparing method thereof
InactiveCN106260776AIncrease contentGood nutritional needsFood processingClimate change adaptationBiotechnologyShrimp
The invention discloses a paramisgurnus-dabryanus developmental-phase compounded feed, and relates to the technical field of aquaculture. The paramisgurnus-dabryanus developmental-phase compounded feed is prepared from 20-30 parts of wheat powder, 15-25 parts of corn flour, 10-20 parts of wheat bran, 8-12 parts of rice bran, 6-8 parts of bean dregs, 10-20 parts of egg white, 2-4 parts of gelatin, 6-8 parts of pig bone powder, 3-5 parts of monocalcium phosphate, 3-5 parts of blood powder, 2-4 parts of shrimp shell powder and 6-8 parts of mineral substance powder. The paramisgurnus-dabryanus developmental-phase compounded feed has the advantages that the raw materials are rich and cheap, and the preparing technology is simple and convenient; as microelements in the common cereal raw materials and the egg white are added, the content of protein is increased, and the requirements of paramisgurnus dabryanus in the development phase for feed are met.
Owner:安徽省淮王渔业科技有限公司
Special compound feed for paramisgurnus dabryanus and preparation method thereof
InactiveCN109221651AMeeting nutritional needsIncrease growth rateFood processingClimate change adaptationFeed conversion ratioRapeseed
The invention discloses special compound feed for paramisgurnus dabryanus and a preparation method thereof. The special compound feed for the paramisgurnus dabryanus comprises the following componentsin parts by weight: 15 to 25 parts of fish meal, 10 to 20 parts of fish steak powder, 5 to 10 parts of corn protein powder, 20 to 40 parts of soybean meal, 4 to 8 parts of rapeseed meal, 14 to 22 parts of high gluten flour, 2 to 8 parts of soybean oil, 1 to 2 parts of calcium dihydrogen phosphate, 0.1 to 0.5 part of choline chloride, and 1 to 2 parts of premixture. The special compound feed for the paramisgurnus dabryanus is prepared by adopting various components such as fish meal, fish steak powder, corn protein powder, soybean meal, rapeseed meal, high gluten flour, soybean oil, calcium dihydrogen phosphate, choline chloride and premixture, so that the nutritional demand of the paramisgurnus dabryanus can be better satisfied, the digestion and utilization rate when the special compoundfeed is used for feeding the paramisgurnus dabryanus is high, the growth rate and feed conversion rate of the paramisgurnus dabryanus can be increased, the growth performance of the paramisgurnus dabryanus can be improved, and the breeding efficiency can be improved.
Owner:WUHAN POLYTECHNIC UNIVERSITY
Breeding method of albino paramisgurnus dabryanus capable of being inherited stably
InactiveCN106636204AHigh knockout efficiencyShort cycleVector-based foreign material introductionAnimal husbandryGene targetsTyrosinase
The invention discloses a breeding method of albino paramisgurnus dabryanus capable of being inherited stably. The method comprises the steps as follows: a TYR (tyrosinase) gene target site is designed on a TYR gene sequence of paramisgurnus dabryanus, then an upstream primer and a downstream primer matched with the upstream primer are designed, PCR (polymerase chain reaction) amplification is performed with framework plasmid as a template, in-vitro transcription and purification are performed, and gRNA is obtained; Cas9 mRNA is obtained from linear Cas9 plasmid as a template after in-vitro transcription and purification; micro-injection is performed on fertilized eggs of the paramisgurnus dabryanus, the fertilized eggs are then incubated, gene knock-out fish is subjected to hybridization, and the albino paramisgurnus dabryanus capable of being inherited stably is obtained.
Owner:HUAZHONG AGRI UNIV
Selective breeding technology of yellow paramisgurnus dabryanus
Provided is selective breeding technology of yellow paramisgurnus dabryanus. The selective breeding technology comprises following steps: 1, reserving parent fish; 2, selecting reserved parent fish; 3, selecting and breeding parents; 4, breeding and sieving parent fish; 5, providing fine parent fish; 6, performing artificial reproduction; 7, breeding seedlings; 8, authenticating and sieving germplasm; 9, breeding adult fish. The selective breeding technology of yellow paramisgurnus dabryanus provides a set of operation technique process suitable to hatching of local seedlings and offers a scientific basis to the selective breeding system of yellow paramisgurnus dabryanus.
Owner:天津鸿腾水产科技发展有限公司
Method for obtaining high-proportion male loaches through interspecies cross
InactiveCN103875569ADysplasiaBreeding generations are fewClimate change adaptationPisciculture and aquariaAbdominal cavityRed mullet
The invention discloses a method for obtaining high-proportion male loaches through interspecies cross. The method includes the steps that female paramisgurnus dabryanus and male tetraploid loaches serve as parents for cross; oxytocic medicine is injected into abdominal cavities of the female paramisgurnus dabryanus and abdominal cavities of the male tetraploid loaches, after hasten parturition is carried out for 12-16 hours, testes of the male tetraploid loaches and egg grains of the female paramisgurnus dabryanus are collected, the testes and preserving liquid are grinded and mixed evenly and then mixed with the egg grains evenly, fertilized eggs are obtained and then incubated, and the high-proportion male loaches are obtained from the hybrid loach fries obtained through breeding and incubation. In triploid hybrid loach groups obtained through the method, the proportion of the male hybrid loaches reaches up to 87.64% to 98.53%, and the ovaries of the female loaches are in a hypoplasia state.
Owner:HUAZHONG AGRI UNIV
Microsatellite-based paramisgurnus dabryanus family identification method and application thereof
ActiveCN108841930AIncrease the number ofHigh polymorphismMicrobiological testing/measurementPolymorphic Microsatellite MarkerFluorescence
The invention discloses a microsatellite-based paramisgurnus dabryanus family identification method and application thereof. The microsatellite-based paramisgurnus dabryanus family identification method comprises the following steps: acquiring paramisgurnus dabryanus full-sib families; extracting genomic DNA from parents and offsprings; screening polymorphic microsatellite markers, and synthesizing primers; performing fluorescence PCR amplification on DNA samples of the parents and offsprings; performing genotypic analysis on the parents and offsprings; and the like. The number of selected microsatellite site alleles is large, the polymorphism is high, and a PCR product is stable and reliable. When the microsatellite sites are used for identifying the 17 full-sib families, the probabilities of finding true male and female parents for 340 offspring individuals are 95.9% and 97.9% respectively, and the overall success rate is as high as 95.6%; by the microsatellite-based paramisgurnus dabryanus family identification method, requirements on identification of a parental sibship and family management in genetic paramisgurnus dabryanus breeding can be met, and a strong technical supportis provided for molecular breeding of paramisgurnus dabryanus.
Owner:天津市水产研究所
Paramisgurnus dabryanus parent cultivation method
ActiveCN112293303AImprove disease resistanceReduce mortalityClimate change adaptationPisciculture and aquariaDiseaseAnimal science
The invention discloses a paramisgurnus dabryanus parent cultivation method. The paramisgurnus dabryanus parent cultivation method comprises the following steps of selecting 2-year or more loaches which are strong in physique, normal in body color, healthy, lively and free of injuries and diseases as parents, wherein the body length of the male loaches is more than 15 cm, the body length of the female loaches is more than 12 cm, and the male-female ratio is 3: 1; and respectively carrying out prenatal intensified cultivation in two months before delivery in spring and autumn, carrying out postnatal repair cultivation in one month after delivery, and carrying out overwintering cultivation before winter. The paramisgurnus dabryanus parent cultivation method has the advantages that the deathrate of the parent loaches after artificial insemination can be reduced, and spring and autumn breeding of the parent loaches is achieved.
Owner:GUANGXI ACADEMY OF FISHERY SCI
Paramisgurnus dabryanus seminal fluid ultra-low temperature cryopreservation method
InactiveCN111771869AEffective preservationFor long-term storageDead animal preservationSperm motilityCryopreservation
The invention discloses a paramisgurnus dabryanus seminal fluid ultra-low temperature cryopreservation method which comprises the following steps: step 1, sequentially mixing NaCl, KCl, CaCl2. 2H2O, MgCl2. 6H2O and NaHCO3 according to a concentration ratio of 80: 50: 5: 2: 50 to prepare a diluent, and storing the diluent at 4 DEG C for later use; 2, mixing the paramisgurnus dabryanus seminal fluidwith the diluent according to the volume ratio of 1: (2-4), then adding DMSO with the volume fraction of 7.5%-12.5%, performing uniform mixing to obtain seminal fluid anti-freezing mixed liquid, andsub-packaging the seminal fluid anti-freezing mixed liquid into cryopreservation tubes; and 3, balancing the cryopreservation tubes obtained in the step 2 at a position which is 6cm above liquid nitrogen surface for 10min, then balancing the cryopreservation tubes on the liquid nitrogen surface for 5min, and finally putting the cryopreservation tubes into liquid nitrogen for cryopreservation. According to the method, the sperm motility, the sperm service life and the cell membrane integrity rate are all improved, and the method becomes an effective and lasting preservation method.
Owner:GUANGXI ACADEMY OF FISHERY SCI
Breeding method for paramisgurnus dabryanus parent loaches for hybridization
InactiveCN104054601AQuality improvementNovel polyculture technologyClimate change adaptationPisciculture and aquariaDiseaseAnimal science
Owner:安徽省淮王渔业科技有限公司
Method for obtaining high-proportion female loaches through interspecies cross
InactiveCN103875568ABreeding generations are fewSimple methodClimate change adaptationPisciculture and aquariaAbdominal cavityInterspecific hybridization
The invention discloses a method for obtaining high-proportion female loaches through interspecies cross. The method includes the steps that female tetraploid loaches and male paramisgurnus dabryanus serve as parents for cross; oxytocic medicine is injected into abdominal cavities of the female tetraploid loaches and abdominal cavities of the male paramisgurnus dabryanus, after hasten parturition is carried out for 12-16 hours, testes of the male paramisgurnus dabryanus and egg grains of the female tetraploid loaches are collected, the testes and preserving liquid are grinded and mixed evenly and then mixed with the egg grains evenly, fertilized eggs are obtained and then incubated, and the high-proportion female loaches are obtained from the hybrid loach fries obtained through breeding and incubation. In triploid hybrid loach groups obtained according to the method, the proportion of the female hybrid loaches reaches up to 78.76% to 90.30%, the female loaches are fertile and can produce two kinds of eggs of different ploidies, and male loaches are infertile.
Owner:HUAZHONG AGRI UNIV
Paramisgurnus dabryanus breeding method in autumn and winter
InactiveCN108739541ANo adverse effects on developmentIncrease economic benefitsClimate change adaptationPisciculture and aquariaSterile environmentFlocculation
The invention discloses a paramisgurnus dabryanus breeding method in autumn and winter, wherein three kinds of spawning induction drugs are compounded to achieve optimal spawning induction effect, andneedle injection mode is used to quickly realize the estrus of parent dabryanus so as to obtain high-quality fertilized eggs, during the hatching process of the fertilized eggs, (microtube oxygen increasing) hatching pond is used for hatching with still water, so that early egg membrane breaking caused by hatching with flow water, which influences the hatching rate, is avoided, the constant temperature water and the electrochemical water are used as hatching water before hatching, the electrochemical water with proper concentration purifies the impurities in the water through physical modes of electric flocculation and ionization, bacteria and parasites are killed by generated strong oxidizing substances instead of using chemicals, which provides an ideal sterile environment for the hatching of the fertilized eggs, and greatly reduces the cost for sterilization and disinfection of the water in the hatching process, the breeding method has the advantages of simple process, strong operability and low cost, production of two seasons in one year can be achieved, seedlings can be effectively supplied, and economic benefits of farmers are increased.
Owner:吴林
Method for culturing paramisgurnus dabryanus in pond
InactiveCN104054606AQuality improvementNew technologyClimate change adaptationPisciculture and aquariaWater sourceWater quality
A method for culturing paramisgurnus dabryanus in a pond relates to the technical field of aquiculture and comprises the steps of determining the specification of a pond, preventing escape and enemy, obtaining a water source, ensuring the water quality of the pond, stocking loach species, feeding with a fodder, regulating daily management, controlling diseases and fishing timely. The method has the benefits that the production resource is fully utilized, special equipment is not required, raising pollution is avoided, the raising technology is standard and normalized, feeding is scientific and normalized, the technology is novel, the aquiculture quality is improved to a great extent, and accordingly, the profit is increased.
Owner:安徽省淮王渔业科技有限公司
Paramisgurnus dabryanus astaxanthin compound feed
ActiveCN108813133APromote growthImprove feeding efficiencyFood processingClimate change adaptationBiotechnologyBetaxanthins
The present invention discloses a paramisgurnus dabryanus astaxanthin compound feed. The feed consists of the following raw materials in parts by weight: 180-250 parts of fish meal, 200-250 parts of peeled soybean meal, 130-180 parts of corn protein powder, 30-80 parts of corn oil, 50-100 parts of wheat bran, 80-150 parts of flour, 100-180 parts of dextrin, 10-30 parts of monocalcium phosphate, 5-15 parts of a vitamin premix, 5-15 parts of a mineral premix, 1-5 parts of lysine, 2-8 parts of methionine, 2-8 parts of choline chloride and 0.05-0.2 part of astaxanthin. The result shows that the content of proteins is significantly higher than that of control groups when the astaxanthin is 50-200 mg / kg. The range of addition amount of the astaxanthin can effectively promote the growth of paramisgurnus dabryanus, and improve the feed efficiency and improve the body components, wherein the best addition amount is 100 mg / kg. The weight gain rate and feed efficiency are taken as evaluation indexes, and regression equation predicts that the addition amount of astaxanthin in the compound feed is 100.00-151.06 mg / kg. With the increase of the addition amount of astaxanthin, the content of proteins among the paramisgurnus dabryanus components increases first and then gets steady. The paramisgurnus dabryanus astaxanthin compound fee can effectively improve the quality of paramisgurnus dabryanus.
Owner:JILIN AGRICULTURAL UNIV
Loach and paramisgurnus dabryanus hybrid breeding method
ActiveCN109349172AImprove hatchabilityHigh activityClimate change adaptationPisciculture and aquariaArtificial inseminationFertility
The invention discloses and relates to a loach and paramisgurnus dabryanus hybrid breeding method and belongs to the technical field of aquaculture. The loach and paramisgurnus dabryanus hybrid breeding method comprises the following steps of parent breeding, pond management, artificial insemination and hatching, and seedling cultivation. The loach and paramisgurnus dabryanus hybrid breeding method can improve the survival rate of loach seedlings; a first-filial generation with Taiwanese paramisgurnus dabryanus as male parent and domestic green loach as the female parent is high in fertility rate, hatching rate and survival rate, quick in growth and similar to the domestic green loach in body form, color and taste.
Owner:INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE JIANGXI ACAD OF AGRI SCI +1
Anti-season feeding equipment for Paramisgurnus dabryanus
ActiveCN110367176ASuitable water temperatureSimple structureClimate change adaptationPisciculture and aquariaGreenhouseThermal insulation
Owner:ANHUI AGRICULTURAL UNIVERSITY
A kind of hybrid breeding method of loach and paraloach
ActiveCN109349172BImprove hatchabilityHigh activityClimate change adaptationPisciculture and aquariaPond loachArtificial insemination
The invention discloses and relates to a loach and paramisgurnus dabryanus hybrid breeding method and belongs to the technical field of aquaculture. The loach and paramisgurnus dabryanus hybrid breeding method comprises the following steps of parent breeding, pond management, artificial insemination and hatching, and seedling cultivation. The loach and paramisgurnus dabryanus hybrid breeding method can improve the survival rate of loach seedlings; a first-filial generation with Taiwanese paramisgurnus dabryanus as male parent and domestic green loach as the female parent is high in fertility rate, hatching rate and survival rate, quick in growth and similar to the domestic green loach in body form, color and taste.
Owner:INST OF ANIMAL HUSBANDRY & VETERINARY MEDICINE JIANGXI ACAD OF AGRI SCI +1
Paramisgurnus dabryanus fry breeding technology
InactiveCN105594626AQuality assuranceGreat tasteClimate change adaptationPisciculture and aquariaBroodstockWater quality
A paramisgurnus dabryanus fry breeding technology comprises the following steps of stocking in a parent pool: firstly building a special parent pool, performing thorough disinfection before stocking, then, selecting young paramisgurnus dabryanus of which the size is basically the same, and putting the selected young paramisgurnus dabryanus into the parent pool for breeding. Strengthening breeding: feeding artificial compound feed on the basis of provision of natural fish bait, adjusting the usage amount of the feed according to the conditions at intervals, frequently observing the change of water quality during the breeding process, and changing water one time per week in general. Then parents are selected for induced spawning, and suitable physique and maturity of parent fishes are selected. Then artificial propagation, natural spawning and fertilizing are performed, and then fertilized ova are collected and hatched into fries in circular hatching channel slow flowing water. Stocking fries can be selected for breeding according to the pool area, the number of the fries, estimated output and the like.
Owner:天津鸿腾水产科技发展有限公司
A method to obtain a high proportion of male loach through interspecific hybridization
InactiveCN103875569BDysplasiaBreeding generations are fewClimate change adaptationPisciculture and aquariaWeatherfishAbdominal cavity
Owner:HUAZHONG AGRI UNIV
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