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35 results about "Hormone injections" patented technology

The most common hormone injections are testosterone and human growth hormone. HGH injections are available to women and men, but testosterone in the form of an injectable is most often used only for men. Women will typically be prescribed this medication in the form of a cream.

Totally artificial breeding method for Coilia ectenes

The invention relates to a totally artificial breeding method for Coilia ectenes, belonging to the technical field of fish culture. The method is characterized by comprising the following process steps of parent fish source; parent fish select breeding comprising standing / flowing water combined reinforced breeding; artificial induced spawning measure comprising parent fish selection, semen collection, dug roe inspection, induced spawning water temperature confirmation, parent fish matching, hormone injection, artificial insemination and the like; microflow water incubating; and summer flower and fish fry breeding. The invention promotes the parent fish sex gland to grow to maturity and ovulate by measures of reinforcing parent fish nutrition reinforced breeding, feeding hormone, flowing water stimulating and regulating and the like and normalizes the artificial induced spawning and insemination process, originally creates a simple flowing water incubating device of a pelagic egg and reinforces the management and ecological regulation of incubation period, thereby effectively solving the technical problems of artificially breeding Coilia ectenes. The induced spawning rate of artificial breeding is 33 percent, the fertilization rate is 48 percent and the hatching rate is 44 percent.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1

Method for promoting natural propagation of migratory fish by adopting recirculating aquaculture and propagation system

ActiveCN103503820AEffectively regulate the rhythm of seasonal changesEffectively regulate diurnal rhythmClimate change adaptationPisciculture and aquariaFilter systemFish growth
The invention discloses a bottom water filtering system and further discloses an imitated ecological recirculating aquaculture and propagation system and a method for promoting natural propagation of migratory fish by adopting the recirculating aquaculture and propagation system. By adopting the method and establishing the recirculating aquaculture and propagation system suitable for integrated growth, development and spawning of the migratory fish, breeding and propagation functions are effectively integrated, and synergic regulation of ecological factors which are necessary during maturation of the migratory fish, especially reeves shad is optimized, so that sexual glands of bred parent fish can synchronously develop and mature under the appropriate, coordinative and controllable ecological conditions, the parent fish can naturally spawn without artificial spawning, and injuries, deaths and gonad development interference caused by hormone injection and catching operation are avoided. The method for promoting the natural propagation of the migratory fish by adopting the recirculating aquaculture and propagation system is simple, reliable and effective and is the key for propagation technology industrialization of the migratory fish, especially the America reeves shad.
Owner:SUZHOU FISHSEEDS BIOLOGICAL TECH CO LTD

Artificial eel propagation method

InactiveCN102511424ALower dose of steroid injectionsOptimize the selection processClimate change adaptationPisciculture and aquariaAnimal sciencePituitary gland
The invention relates to an artificial eel propagation method, which includes: a, ripening parent fishes, breeding catadromous parent reels for seven days, gradually increasing salinity of water, and subjecting the parent eels to back intramuscular injection of ripening agent-carp pituitary gland homogenate and HCG (human chorionic gonadotropin); b, performing induced spawning of the parent eels, subjecting female eels to injection of oxytocin 17 alpha-hydroxyl progesterone and HCG, subjecting sperm-producing male eels to injection of mixture of CPE (carp pituitary extract) with HCG, collecting naturally spawned fertilized eggs on the next day, and subjecting the female eels laying no eggs to semi-dry artificial insemination; and c, hatching the fertilized eggs, immediately transferring the fertilized eggs to a special-made hatching barrel for hatching, and slightly aerating, changing half of water every four hours until fry are hatched successfully. The artificial eel propagation method has the advantages that anesthetic loss and operational injury can be prevented, injection dosage of hormones is reduced, a great amount of eels can mate and lay eggs naturally under artificial induced spawning, artificial insemination can be complete securely in a planned way, level of high-quality fertilized eggs and alevin of eels artificially propagated is increased.
Owner:SHANGHAI OCEAN UNIV

Continuous and automatic injection device used for loach hormone injection

ActiveCN105963044ARealize automatic injectionImprove the efficiency of automated injectionVeterinary instrumentsEngineeringInjection device
The invention discloses a continuous and automatic injection device used for loach hormone injection. The continuous and automatic injection device comprises a rack, as well as a positioning mechanism, a clamping mechanism, a loach releasing mechanism, an injecting mechanism, a photoelectric sensor, a water tank and a PLC which are mounted on the rack, wherein the positioning mechanism is a channel which is slantwise arranged and is used for a loach to slide down, the lower part of the channel is introduced into the water tank, the loach releasing mechanism is used for controlling the opening and closing of the channel, and the clamping mechanism is used for fixing the loach so that the injecting mechanism carries out injection on the loach. According to the continuous and automatic injection device, an air cylinder is combined with a syringe, so that the guide, the automatic clamping and the automatic injection are realized on the loach; the continuous and automatic injection device is simple in structure, high in degree of automation, precise to operate, and strong in reliability, and the automatic injection efficiency for the loach is effectively improved; the continuous and automatic injection device can carry out automatic and continuous hormone injection on the loach.
Owner:ZHEJIANG UNIV

Siniperca chuatsi and siniperca kneri hybridization and culture method

The invention relates to the technical field of aquaculture and aquatic breeding, in particular to a siniperca chuatsi and siniperca kneri hybridization and culture method which can be applied to home and collective siniperca culture, especially large-scale culture and breeding. The hybridization and culture method includes the steps of artificial insemination, fry rearing, fostering in pool, culture in pond and the like in details as follows: selecting siniperca chuatsi as female parent fish and siniperca kneri as male parent fish, and strengthening fostering, hatching fries by adopting artificial propagation technical measures of exogenous hormone injection for expediting delivery, running water stimulation for promoting delivery, artificial dry insemination and circular road running water hatching, and then breeding and culturing. The invention provides a novel hybrid siniperca kneri production method, and hybrid siniperca kneri produced by the method has a different shape from that of the female parent, has obvious growth advantage compared with the male parent and keeps the characteristics of fine and smooth meat quality and delicious taste of siniperca kneri.
Owner:生生农业集团股份有限公司 +1

Method for north-south hybridization and reproduction regulation breeding of Lateolabrax

The invention discloses a method for north-south hybridization and reproductive regulation breeding of Lateolabrax, which relates to the biotechnology breeding of Lateolabrax. The method comprises the following steps of: (1) taking a standby parent fish bred from the northern Lateolabrax seed as the male parent and a standby parent fish bred from the local wild Lateolabrax seed as the female parent; (2) breeding the male and the female parents to about 1500g to be used as the parent fishes; (3) artificially inducing the Lateolabrax through a reproductive regulation: controlling the time and the number of hatching of the Lateolabrax parent fishes by means of temperature, photoperiod and hormone injection, controlling the illumination time to 8h, reducing the temperature by 0.3 DEG C every day via a water cooler, and injecting CRH-A3 to the dorsal muscles of the parent fishes after anesthesia with allylguaiacol when the water temperature is reduced to 22 DEG C to induce the parent fishes to spawn, wherein the reproductive regulation induction period of the Lateolabrax is 7 days, and the Lateolabrax can be induced for several periods; (4) breeding the germ cells of the Lateolabrax; and (5) breeding juvenile fishes and breeding the juvenile fishes on a lower row when the sizes of the juvenile fishes reach more than 5cm. The invention has the advantage of breeding the new Lateolabrax seed which has the advantages of high temperature resistance, high growth speed, strong disease resistance and good quality by hybridizing northern and southern Lateolabraxes.
Owner:FUJIAN MINWELL IND CO LTD

Full-season artificial breeding method of largemouth bass

The invention relates to a full-season artificial breeding method of largemouth bass. The method includes the steps of selection and stocking of bass parents, low-temperature stimulation, parent fishintensive cultivation, temperature rise stimulation of gonad development, hormone injection, fry production and the like. The method carries out artificial breeding of largemouth bass in non-breedingseason under the condition of artificial control for the first time, breaks through the limitation that the bass can only be bred in spring in the past, realizes full-season breeding of the largemouthbass; the method can control the fry production and the fish market time of the largemouth bass, and solves the problems of market dyspepsia, low selling price and the like caused by centralized listing; and the method breaks through seasonal and temperature restrictions, provides large-size fries in the breeding season, shortens the breeding and pond storage time of the largemouth bass, and solves the problem that the old fish stored in ponds for a long time is easy to suffer from diseases.
Owner:南京市水产科学研究所

Cross breeding method for improving growth traits of slender mandarinfish

The invention discloses a cross breeding method for improving growth traits of slender mandarinfish. The cross breeding method can be widely applied in large-scale breeding and belongs to the field of agricultural technology which is necessary for human life. The cross breeding method comprises the following main steps of parent fish cultivating, artificial inseminating, fish seed cultivating, cultivating in a pool, etc. Mandarin fish is selected as female parent fish and the slender mandarinfish is selected as male parent fish and furthermore intensive cultivation is performed. Artificial propagation technical measures of hasten parturition according to a male-and-female synchronous one-time exogenous hormone injection method, artificial dry-method inseminating, circular-channel water-flow hatching, etc., fish seeds are hatched. A segmented cultivation mode is adopted. High-palatability fish bait is applied. Furthermore breeding management in a seed period and a mature period are reinforced. The invention provides the method for improving the growth traits of the slender mandarinfish. The shape of the crossbred slender mandarinfish which is generated according to the method is different from that of the male parent fish and that of the female parent fish, and furthermore the growth advantage is better than that of the male parent fish. Furthermore the crossbred slender mandarinfish has advantages of high meat quality, delicious taste, high disease resistance, high growing speed, capability of eating dead fish, etc. The crossbred slender mandarinfish is a novel breed of the crossbred mandarin fish which facilitates artificial large-scale breeding.
Owner:JIANGXI INST OF AQUATIC SCI

Efficient spawning induction method of misgurnus anguillicaudatus

The invention discloses an efficient spawning induction method of misgurnus anguillicaudatus. The method comprises steps as follows: (1) selection of parents; (2) pretreatment of the parents; (3) agent injection; (4) collection of zygotes. Under the combined action of pretreatment of misgurnus anguillicaudatus and treatment with a spawning promotion stabilizer during mixed culture after hormone injection, the harm caused by human factors to the misgurnus anguillicaudatus is reduced, the anti-stress capacity of the misgurnus anguillicaudatus is improved, the yield, the quality and the breeding speed of zygotes are increased, and the method causes no harm to the misgurnus anguillicaudatus, human bodies and the environment, is environment-friendly and safe and has high popularization value.
Owner:太和县顺发养殖有限公司

Durable preparation of an injectable of melatonin exhibiting long-term stability

The invention relates to an aqueous melatonin composition exhibiting surprising long-term stability and allowing high concentrations of said water-insoluble active ingredient. The properties of said composition render it useful as an injectable, for example, for the intravenous administration thereof.
Owner:SERVICIO ANDALUZ DE SALUD (SAS) +1

Sow raising and breeding method

The invention relates to a sow raising and breeding method. Through the method, a disperse, random and traditional raising method is converted into concentrated, continuous and balanced assembly line production according to ecological and physiological characteristics of sows, an all-in and all-out process is implemented, and annual balanced production is performed according to the breeding rhythm. The key technology of all-in and all-out production according to the breeding rhythm is estrus synchronization. Estrus synchronization of the sows can be achieved through three methods, namely (1) estrus synchronization of the multiparous sows is achieved through a simultaneous weaning method; (2) estrus synchronization of the sows experiencing the puberty or pregnant sows is achieved through a pen breeding and hormone injection method; (3) estrus synchronization of gilts which are not in the puberty is achieved through a group raising and hormone injection method. The sow raising and breeding method is experience obtained through many years of sow raising, enables the sows to bred regularly, facilitates production and operation management, and enables work to be conducted in an orderly and planned mode.
Owner:ANSHUN DEKANG AGRI & ANIMAL HUSBANDRY CO LTD

Full artificial breeding technology for lateolabrax japonicus in northern area

The invention discloses a full artificial breeding technology for lateolabrax japonicus in the northern area and belongs to the technical field of genetic breeding of aquatic products, providing a technical support for genetic breeding of lateolabrax japonicus. The full artificial breeding technology for lateolabrax japonicus in the northern area includes (1) the full artificial cultivation technology for lateolabrax japonicus in the northern area, which refers to techniques of cultivating parent fish in outdoor net cages in summer and autumn and cultivating parent fish in indoor cement pondsin spring and winter, (2) the artificial insemination and artificial incubation technology for lateolabrax japonicus in the northern area, which particularly includes techniques of selection of parentfish of lateolabrax japonicus, hormone injection, sperm and egg maturity determination, artificial insemination, one-to-one building of the full-sib family, and hatching of fertilized eggs. Accordingto the technology, female lateolabrax japonicus in four years or four years above, of which the weight is equal to or higher than 2.50kg, is in sexual maturity stage, and male lateolabrax japonicus in three years or three years above, of which the weight is equal to or higher than 2.00kg, is in sexual maturity stage.
Owner:OCEAN UNIV OF CHINA +1

Negative-pressure wound treatment method used for prevention and treatment of scarring hyperplasia at surgical suture

The invention provides a technical method of negative-pressure wound treatment method used for prevention and treatment of scarring hyperplasia at the surgical suture. Implicit factors of scar hyperplasia are mechanical stress, infection, inflammatory reaction and foreign body reaction of wounds. Among the implicit factors, wound tension plays a key function in the scar formation. Frequently-used scar prevention and treatment methods such as Silicone gel, pressure therapy, hormone injections and the like are poor in curative effect or has side effects. The negative-pressure wound treatment method is a novel prevention and treatment for wounds and scars at the surgical suture. Based on the structure and working principle of the negative-pressure wound treatment, the scarring hyperplasia can be effectively inhibited through closing, fixing and pressing the sutured wounds and playing continuous negative-pressure action on the wounds; at the same time, the main factors leading to the scar formation are intervened. The intervention process comprises the following steps: the tension of the wound tissue is remarkably alleviated; the wounds are closed; the wound healing is accelerated and the tissue inflammation is reduced, so that the scarring hyperplasia is effectively restrained. The negative-pressure wound treatment method is used for scar prevention and treatment of various surgical operation suture wounds, such as plastic surgery, beauty surgery, burn surgery, cardiothoracic surgery, head and neck surgery, maternity surgery and the like.
Owner:谢有富

Ecology-simulated artificial tor (foliter) brevifilis brevifilis breeding method by virtue of earthen pond

The invention discloses an ecology-simulated artificial tor (foliter) brevifilis brevifilis breeding method by virtue of a earthen pond. The ecology-simulated artificial tor (foliter) brevifilis brevifilis breeding method comprises the following steps: A. selecting a spawning pond; B. construction and placement of fish spawning nests: covering the surfaces of tiles with dense gauze, symmetrically and fixedly arranging the tiles to define a hollow elliptical columnar fish spawning nests, and soaking and disinfecting the fish nests with potassium permanganate solution; distributing wood sticks into the fish spawning pool in an array manner, wherein the distance between any one wood stick and the bank of the pool is more than or equal to 50cm, every two wood sticks in each row of wood sticks are connected with a rope, every two wood sticks in each column of wood sticks are connected with a rope, and the disinfected fish spawning nests are arranged on the rope at intervals and have a distance of 8-12cm away from a pond bottom; C. selecting parent fishes; and D. spawning induction of parent fishes: when the temperature continuously exceeds 22DEG C for 7 days, performing hormone injection from the pelvic fin base part of each parent fish: injecting 0.013-0.017mg / kg of pituitary hormone for each female fish and injecting 0.004-0.006mg / kg of domperidone and luteinizing-hormone releasing hormone analog for each male fish; E. releasing parent fishes; and F. performing daily management.
Owner:安徽铜草花现代农业科技有限公司

Totally artificial breeding method for Coilia ectenes

The invention relates to a totally artificial breeding method for Coilia ectenes, belonging to the technical field of fish culture. The method is characterized by comprising the following process steps of parent fish source; parent fish select breeding comprising standing / flowing water combined reinforced breeding; artificial induced spawning measure comprising parent fish selection, semen collection, dug roe inspection, induced spawning water temperature confirmation, parent fish matching, hormone injection, artificial insemination and the like; microflow water incubating; and summer flower and fish fry breeding. The invention promotes the parent fish sex gland to grow to maturity and ovulate by measures of reinforcing parent fish nutrition reinforced breeding, feeding hormone, flowing water stimulating and regulating and the like and normalizes the artificial induced spawning and insemination process, originally creates a simple flowing water incubating device of a pelagic egg and reinforces the management and ecological regulation of incubation period, thereby effectively solving the technical problems of artificially breeding Coilia ectenes. The induced spawning rate of artificial breeding is 33 percent, the fertilization rate is 48 percent and the hatching rate is 44 percent.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI +1

Synchronous estrus and artificial insemination method for inducing batch production of Hu sheep

InactiveCN111743661AReduce thrombus loss rateReduce vaginal inflammationAnimal reproductionObstetricsEstrus synchronization
The invention discloses a synchronous estrus and artificial insemination method for inducing batch production of Hu sheep, and belongs to the technical field of efficient breeding of sheep. Accordingto the method provided by the invention, a hormone combination of FGA + PGF2 alpha + PMSG is used for inducing synchronous estrus of the Hu sheep, the vaginal plug burying time is set to be 11 days, and the hormone injection time is 2 days before vaginal plug removal. By adopting the method, the vaginal plug loss rate and the vaginal inflammation rate of ewe can be reduced, ovarian cyst is reduced, meanwhile, the semen deposition frequency and the semen deposition time point are determined, the operability is high, the cost can be saved, and the breeding benefit is improved.
Owner:HEBEI NORTH UNIV

Saprolegniasis prevention and control method for gymnocypris potanini

The invention discloses a saprolegniasis prevention and control method for gymnocypris potanini. The method includes the steps that A, a flowing water breeding barrel is needed, flowing water breeding is performed, and ammonia nitrogen is controlled below 0.05 mg / L; B, water flow is controlled, wherein the speed of flowing water is controlled through a water pump or by adjusting the direction and the magnitude of water flow of a water inlet; C, throwing for feeding is performed, wherein after temporary raising and food domesticating, rainbow trout juvenile fish feed is thrown for feeding; D, drug use is performed, wherein the water amount is measured and calculated according to the area of a pond and the water depth, and oxytetracycline is splashed; E, vitamins are used, wherein vitamin C is splashed in the whole pond; and F, saprolegniasis prevention and control are performed for parent fish after delivery, wherein after hormone injection and spawning induction for egg squeezing, under the water temperature of a breeding season, and on the basis that daily prevention and control is kept, prevention and control measures include that a, soaking of glucose and a triphosadenine solution is performed after delivery; and b, antibiotics are thrown for feeding, wherein ampicillin is added in each kilogram of feed, and after stirring and uniform mixing, throwing for feeding is performed. The method is easy to execute, and easy and convenient to operate, effectively prevents generation of saprolegniasis in the breeding process of the gymnocypris potanini and after spawning induction, and a basis is laid for the species protection work of the gymnocypris potanini.
Owner:YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1

Method for preparing long acting progestational hormone injection embedded agent and use

The present invention introduces the preparation process of injection microballoon with PLGA, PLA or other biodegradable polymer as skeleton material and the progestational hormone, gestrinone, as model medicine, and through solvent evaporation. The microballoon may be injected to subcutaneous part or muscle for delayed releasing for over 15 days. The microballoon skeleton material inside body degrades gradually into small molecular matter excreted to outside the body. The gestrinone microballoon injection may be administrated conveniently and is superior to conventional tablet form, which is orally taken frequently to result in damage to liver and kidney and other negative reaction. Rat experiment shows that the preparation of the present invention may be used in treating endometriosis, etc.
Owner:SHANGHAI INST OF PHARMA IND

Method for increasing transcaucasian barb artificial reproduction fertility rate

The invention discloses a method for increasing the transcaucasian barb artificial reproduction fertility rate. The method comprises the following steps of 1, parent fish preparation; 2, artificial hormone injection, wherein a two-time injection method is adopted for performing artificial hormone injection, and the time interval between two times of needle injection is 24 h; according to the female transcaucasian barb injection dosage, the first-time injection dosage is 4 micrograms per kilogram of parent transcaucasian barb, and the second-time injection dosage is 4 micrograms of LRH-A, 800 IU of HCG, 3-5 of PG and 2,800 IG of LRH-A per kilogram of parent transcaucasian barb, and the male transcaucasian barb injection dosage is 1 / 2 of the female transcaucasian barb injection dosage; 3, artificial insemination; 4, micro running water culture fertility rate. The two-time injection method is adopted for artificial injection, and the time interval is 24 h; a semidry method is adopted for artificial insemination, a certain amount of ringer solution is added, and the transcaucasian barb artificial reproduction fertility rate can be remarkably increased, so that the key technical problem of transcaucasian barb artificial reproduction is solved, and then guarantees are provided for fry culture and commercial fish artificial reproduction.
Owner:SOUTHWEST UNIV

Method for increasing reproduction rate of Tibetan sheep

InactiveCN109984090ABreaking the Seasonal Estrus Characteristics of Tibetan SheepTimely breedingAnimal husbandryCold seasonWeaning
The invention belongs to the technical field of animal reproduction methods, and particularly relates to a method for increasing the reproduction rate of Tibetan sheep. The method includes the steps of forming an ewes group and a ram group; performing sex hormone injection before first mating, and completing one reproduction cycle in a gestation period of 5 months, a lactation period of 2 months and a to-be-mated period of 1 month after mating, wherein three reproduction cycles are completed in two years; performing nutrition regulation for ewes and rams in the warm season and the cold season.According to the method, under the grazing condition, by improving the feeding management technology and performing reproduction regulation, the seasonal estrus characteristic of Tibetan sheep can bebroken through, the ewes can rut in time for mating after the weaning of two-month-old lambs, and three reproduction cycles in two years are realized.
Owner:QINGHAI ACAD OF ANIMAL SCI & VETERINARY MEDICINE

Method for inducing twin calving

The present invention provides a method for inducing twin calving. The method according to the present invention comprises firstly treatment to inducing atresia of the antral follicles on ovary so as to initiate the development of new follicular wave, inducing the development of codominant follicles and further achieving double ovulations by exactly controlling the dosage and time points of hormone injections, and performing artificial insemination to induce the cow to deliver twin calves. The method according to the present invention has relative independent on the technical skills, and a person skilled in the art or a common worker can practice it according to specified operation methods; and during practical application, it does not require special equipment, thus saving cost, as well as improving the social benefit and economic benefit of cow breeding.
Owner:CHINA AGRI UNIV

Method for promoting natural reproduction of migratory fish by adopting recirculating aquaculture and breeding system

ActiveCN103503820BAvoid the risk of hitting the wall with dead cornersStrong stress responseClimate change adaptationPisciculture and aquariaFilter systemSexual reproduction
The invention discloses a bottom water filtering system and further discloses an imitated ecological recirculating aquaculture and propagation system and a method for promoting natural propagation of migratory fish by adopting the recirculating aquaculture and propagation system. By adopting the method and establishing the recirculating aquaculture and propagation system suitable for integrated growth, development and spawning of the migratory fish, breeding and propagation functions are effectively integrated, and synergic regulation of ecological factors which are necessary during maturation of the migratory fish, especially reeves shad is optimized, so that sexual glands of bred parent fish can synchronously develop and mature under the appropriate, coordinative and controllable ecological conditions, the parent fish can naturally spawn without artificial spawning, and injuries, deaths and gonad development interference caused by hormone injection and catching operation are avoided. The method for promoting the natural propagation of the migratory fish by adopting the recirculating aquaculture and propagation system is simple, reliable and effective and is the key for propagation technology industrialization of the migratory fish, especially the America reeves shad.
Owner:SUZHOU FISHSEEDS BIOLOGICAL TECH CO LTD

Method for breeding giant salamanders

InactiveCN109349216AImprove developmentAvoid egg feeding situationsAnimal husbandryWater flowGiant salamander
The invention discloses a method for breeding giant salamanders. The method comprises the following steps that S1, in about middle ten days of August every year, the giant salamanders are classified according to different conditions of sexual maturity and males and females of the giant salamanders and then placed separately; S2, after the female giant salamanders enter the rut, the female giant salamanders with the weight of 1.5-3.5 KG and 4-5 years old are selected; S3, the female giant salamanders are observed, when it is discovered that the bodies of the female giant salamanders become red,a nest for laying eggs is built for the female giant salamanders, and a slope is arranged in the nest; S4, water is added on the nest for laying eggs, the water flows from left to right, and after the female giant salamanders are adapted to the nest for a certain period of time, a male giant salamander larger than the female giant salamanders in size is placed in the nest; S5, the female giant salamanders and the male giant salamander can respond quickly. According to the method, the problem of low survival rate of fertilized ova is solved, and meanwhile the problem is also solved that hormones need to be injected during breeding; the situation is avoided that due to hormone injection, the service life of the giant salamanders is shortened, the breeding number of the giant salamanders isgreatly increased, the breeding quality of the giant salamanders is greatly improved, and the method is simple and convenient to use.
Owner:黄山市鲵源渔业科技有限公司

A kind of saprolegnia control method of Songpan naked carp

The invention discloses a saprolegniasis prevention and control method for gymnocypris potanini. The method includes the steps that A, a flowing water breeding barrel is needed, flowing water breeding is performed, and ammonia nitrogen is controlled below 0.05 mg / L; B, water flow is controlled, wherein the speed of flowing water is controlled through a water pump or by adjusting the direction and the magnitude of water flow of a water inlet; C, throwing for feeding is performed, wherein after temporary raising and food domesticating, rainbow trout juvenile fish feed is thrown for feeding; D, drug use is performed, wherein the water amount is measured and calculated according to the area of a pond and the water depth, and oxytetracycline is splashed; E, vitamins are used, wherein vitamin C is splashed in the whole pond; and F, saprolegniasis prevention and control are performed for parent fish after delivery, wherein after hormone injection and spawning induction for egg squeezing, under the water temperature of a breeding season, and on the basis that daily prevention and control is kept, prevention and control measures include that a, soaking of glucose and a triphosadenine solution is performed after delivery; and b, antibiotics are thrown for feeding, wherein ampicillin is added in each kilogram of feed, and after stirring and uniform mixing, throwing for feeding is performed. The method is easy to execute, and easy and convenient to operate, effectively prevents generation of saprolegniasis in the breeding process of the gymnocypris potanini and after spawning induction, and a basis is laid for the species protection work of the gymnocypris potanini.
Owner:YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1

Method for inducing twin calving

The present invention provides a method for inducing twin calving. The method according to the present invention comprises firstly treatment to inducing atresia of the antral follicles on ovary so as to initiate the development of new follicular wave, inducing the development of codominant follicles and further achieving double ovulations by exactly controlling the dosage and time points of hormone injections, and performing artificial insemination to induce the cow to deliver twin calves. The method according to the present invention has relative independent on the technical skills, and a person skilled in the art or a common worker can practice it according to specified operation methods; and during practical application, it does not require special equipment, thus saving cost, as well as improving the social benefit and economic benefit of cow breeding.
Owner:CHINA AGRI UNIV
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