102 results about "Seasonal breeder" patented technology

The invention relates to a large-scale method for raising seedlings of freshwater shrimps, which mainly comprises the following steps: the mixture ratio of female shrimps to male shrimps is between 3 and 5 to 1, and the shrimps come from different places, are more than 4.5 centimeters, have mature gonad, are able-bodied and scot-free, and have sensitive reaction to external stimulus; or shrimps with eggs and more than 5 centimeters are directly purchased in the mating period, taken as parent strains and placed into a seedling pool; high-quality full-rate mixed feed is thrown and fed from the next day; when zoeas occur in the pool, soybean milk is splashed; when shrimp larvaes begin to be abnormal, powdery mixed feed is fed when the soybean milk is splashed simultaneously; and when the proportion of abnormal seedlings is improved, the proportion of the powdery mixed feed is gradually increased and the powdery mixed feed can be completely thrown and fed after 10 days. Moreover, the transparency of a water body is controlled to between 20 and 30 centimeters; the pH value is between 7.5 and 8.5; and the dissolved oxygen is more than 5 milligrams per liter. The method is a scientific, reasonable, low-investment, high-efficiency and large-scale method for raising the seedlings of the freshwater shrimps, can effectively prevent varieties from degeneration, and is favorable for promoting good freshwater shrimps and improving the economic benefit of cultivation.

The invention discloses a mountain area sturgeon parent breeding and artificial spawning method. The method comprises the steps that running water breeding is carried out on mountain area sturgeon parents, selection and male and female parent classification are carried out on the sturgeon parents two months before the breeding season, the selected male and female sturgeon parents are bred in different pools with controlled temperature, luteinizing hormone releasing hormone A3 is adopted as oxytocin to facilitate artificial spawning, and male sturgeon parents and female sturgeon parents are respectively and temporarily fed after spawning is finished. The mountain area sturgeon parent breeding and artificial spawning method is easy to operate and low in cost, the fertilization rate of sturgeon reaches 90.48%, 163.2 thousand sturgeon fry are hatched, the hatching rate is 66.55%, and the effect is quite obvious.

The invention discloses an artificial breeding method for Epinephelus tukula. The method comprises the following steps: (1) selecting parents; (2) culturing the parents in a pond; (3) culturing parent fishes in an anestrous season; (4) performing strengthening cultivation before reproduction; (5) performing artificial reproduction; (6) collecting and treating oosperm; (7) hatching the oosperm. Through parent culture of the Epinephelus tukula, parent fishes are made to lay eggs, and the oosperms are used to hatch fries, and the fries are cultured into fingerlings for breeding. The method provides a reasonable solution which is high in hatching rate for developing cultivation of Epinephelus tukula in a large-scale manner.

The invention relates to a rapid and efficient method for breeding tilapias, which is characterized by comprising the following steps of: utilizing GIFT strain Nile tilapias of 60 families introduced from the Malaysia Worldfish Center as a basic breeding colony; separating tilapia fries of different families into different net cages for breeding; respectively selecting 30 fries from each family, and injecting a radio frequency identification to a fry abdominal cavity with an injector to identify individuals; breeding the fries before a propagation season of the next year, and measuring body weight, body length, body height and body thickness data of all identified tilapias; estimating a breeding value of each fringetail according to a BLUP (Best Linear Unbiased Prediction) method by utilizing ASREML software; selecting male tilapias with the estimated breeding values of the top 60 and female tilapias with the estimated breeding values of the top 120, and carrying out nest mating propagation in the ratio of 1:2 of the male tilapia to the female tilapia to establish a family of the second generation; taking out oosperms from the oral cavity of the female tilapia which spawns, and transferring the oosperms into a hatcher to carry out hatching of running water. The rapid and efficient method for breeding the tilapias can avoid the problem of inbreeding depression caused by inbreeding, thereby being capable of carrying out breeding for a long period of time.

The invention discloses a method for changing a meat goose female train mating season. The method includes the steps: importing goose parent goslings; controlling illumination in a gosling breeding / maturity breading period; and feeding feed in the breeding goslings / breading maturity period and enabling the goose parents to start egg-laying maturity, wherein time for importing the goose parent goslings is January-February months. A method for controlling the illumination in the gosling breeding / maturity breading period includes the steps: adopting 24-hour illumination in 1-7 ages in days, gradually transiting natural illumination after the goslings reach 7 ages in days, and implementing the illumination in the whole process for 15 hours per day after the goose parents reach 6 ages in month. A method for feeding feed in the goslings breeding / maturity breading period includes the steps: enabling the goslings to conduct free choice feeding in 0-12 ages in week, and adopting limiting breeding in 11-25 ages in week, gradually starting to increase the feed from 26 ages in week, and finally enabling the goslings to conduct free choice feeding. The method for changing the meat goose female train mating season further includes the steps: gradually decreasing feeding scale in January-February next year, and then stopping feeding for 2 days, next limiting feeding for about 2 weeks, pulling up main wing feathers and sub main wing feathers by using 1 week, and later gradually increasing the feed. The method enables the meat goose female train mating season to be changed to be April to December each year.

An artificial reproduction method for lateen mussel or butterfly mussel includes such steps as choosing more than 3 years old parents, temporarily culturing in adult mussel pool, injecting the chorionic gonadotropin in female parent, culturing the female parents in individual pool, taking the seminal fluid from male parent, diluting by sodium chloride solution, injecting it in female parent twice, culturing in temporary pool until glochidium is mature, parasitizing and culturing young mussel.

A method for distant hybridization between subfamilies of cyprinus carpio and megalobrama amblycephala includes the following steps that firstly, female cyprinus carpio and male megalobrama amblycephala which have obvious sexual maturity characteristics and good somatic features are selected as parent fishes for special pool breeding, then, artificial spawning induction is conducted on the parent finishes in a breeding season, the parent fishes with a good spawning induction effect are selected to be subjected to artificial dry-method fertilization, running water incubation is conducted on fertilized embryos in a pure water incubation device, fish fry are raised after being incubated, the raised fish fry are detected and screened, hybrid offspring of the cyprinus carpio and the megalobrama amblycephala are obtained through flow cytometry DNA content determination and renal tissue chromosome ploidy detection, and the hybrid offspring comprise diploid natural gynogenesis cyprinus carpio, diploid natural gynogenesis mirror carps, diploid fish like the cyprinus carpio and tetraploid hybrid fish. The method has the advantages that the rate of fertilization is high, the incubating rate is high, the offspring are excellent in character, and the method has great significance in genetic breeding.

The invention belongs to the field of aquaculture, particularly relates to a light environment regulating method for promoting the gonad maturation of Atlantic salmons. The rapid and synchronous maturation of the ovaries of female Atlantic salmons and the testes of male Atlantic salmons is realized after the breeding of three to six months through the comprehensive regulation of the color, the period and the intensity of light in the living environment of the female Atlantic salmons and the male Atlantic salmons in a mating season or a non-mating season. Irritability stress caused by the traditional methods of delivery induction injection hormones and the like is reduced, the cultivating survival rate of parent fish is increased, and the synchronous maturation of the gonads is promoted.

The invention discloses a method for prompting pond- bred alosa sapidissima to spawn by ecological regulation and control. The method comprises the following steps of: in a breeding season, selecting sexually matured alosa sapidissima parent fish; stocking selected alosa sapidissima parent fish into a breeding pond for enhanced breeding, wherein the water temperature in the breeding pond is stabilized at 18 to 22 DEC G and dissolved oxygen content is kept over 6mg / L; and maintaining water flow stimulation for prompting the alosa sapidissima to spawn continuously and naturally, wherein the water flow is 3 to 8 cubic meters per hour. In the method, germ cells of the pond- bred alosa sapidissima are started and induced to mature and finally the pond-bred alosa sapidissima is prompted to spawn by adopting ecological regulation and control measures such as enhanced breeding, water temperature, dissolved oxygen content, water stimulation and the like, so that parent fish death caused by artificial oxytocin breeding is reduced and labor intensity is reduced.

The invention relates to a shellfish larva collection method, in particular to a method for collecting indoors cultivated natural patinopecten yesoensis larvae by trawling, which comprises the following steps of: in the breeding season, monitoring the gonad index of parent patinopecten yesoensis in a sea area; after the index shows that eggs are laid, monitoring larvae in the sea area in which the patinopecten yesoensis larvae appear; after the attachment rush hour of the larvae arrives, carrying out trawling filtration collection on the natural bivalve larvae in a set sea area; and then putting the filtered and collected larvae into a room for carrying out artificial culture. The method combines the natural sea area larva collection with artificial breeding, so that high survival rate and stress resistance and the genetic diversity level of the natural offspring seeds which are subjected to natural selection are kept, and the larva collection quantity is improved and the defect of unstable larva quantity of the natural larva collection is overcome by stable management of indoor cultivation. Compared with the indoor artificial breeding, the method has short cultivation time and low energy consumption, is environmental-friendly and has great significance for prompting the upgrading of the patinopecten yesoensis industry and the sustainable and healthy development of the neritic aquaculture industry.

The invention relates to a Japanese scallop sea area breeding method which comprises the following steps: monitoring germen indexes to parent scallops of Japanese scallops in a sea area in a propagate season; monitoring the quantity and the size of baby scallops in the sea area having the baby scallops of the Japanese scallop after the monitoring data show the oviposition, and putting a breeding device into the set bearing area when the monitoring of the number and the size of the baby scallops shows the proportion of adhering baby scallops: bivalve shell baby scallops with shell height more than 200 micrometers occupy more than 40 percent of the total of bivalve shell baby scallops, or the bivalve shell baby scallops with shell height more than 230 micrometers occupy more than 20 percent of the total of the bivalve shell baby scallops, or the bivalve shell baby scallops with shell height more than 250 micrometers occupy 5-10 percent of the total of the bivalve shell baby scallops. The Japanese scallop sea area breeding method can obtain natural degeneration-resistant excellent baby scallops in an open sea area, realizes the massive production of the natural baby scallops, and develops a source of the natural green baby scallops.

The invention provides an out-of-season French Landaise breeding method. The out-of-season French Landaise breeding method includes the following steps of A, material controlling: controlling feed quantity of gaggle for 8-10 days, feeding each goose 80-100g / day so that the total weight of the gaggle is reduced to 5-10%, and guaranteeing sufficient drinking water; B, moulting out of season: picking feathers, main wing feathers and auxiliary wing feathers on the tail; C, light compensating: lighting manually for 8-10 days before moulting, and lighting manually for 18-22 days after moulting, wherein manual lighting time ranges from six o'clock pm every day to 8 o'clock am in second day; and D, light shading: shading a goose house by black cloth; shading light for two months after light compensating, and removing the black cloth at two o'clock am every day. The landaise experiment proves that after production halt or non-breeding season of geese by the aid of long-time lighting in winter, a next breeding period can be started after a production halting period, and breeding of Landaise can be accelerated by short lighting in spring and summer, and breeding seasonality of Landaise can be inverted, and the geese can lay eggs completely normally.

The invention discloses a method for the distant hybridization between subfamilies of red crucian carps and xenocypri davidi bleekers, comprising the following steps: firstly, selecting red crucian carps and xenocypri davidi bleekers with maturated gonads and good body features to be respectively used as female parent fishes and male parent fishes for hybridization, and carrying out artificial induced spawning on the female and male parent fishes in a breeding season; secondly, selecting the male and the female parent fishes with good effect of induced spawning for carrying out artificial dry-method insemination, and carrying out automatic hatching in running water after the insemination is finished; thirdly, breeding hatched fries, and detecting and screening the bred fries to obtain redcrucian carp and xenocypri davidi bleeker hybridized triploid fishes, red crucian carp and xenocypri davidi bleeker hybridized tetraploid fishes and natural gynogenesis red crucian carps. In the invention, the characteristics of the bred hybridized generation are improved, and the insemination rate and the hatching rate of distant hybridization are remarkably improved; in addition, the method is anew way for generating the tetraploid fishes and the natural gynogenesis red crucian carps, and has important biological significance in the aspects of the biological evolution and the genetic breeding of fishes.

The invention discloses a rotational mating breeding method for pinctada fucata groups. The method comprises the following steps of: collecting at least three pinctada fucata groups from different sources, and constructing an F1 generation diallel crossing group; before a breeding season, randomly sampling over 1,000 individuals from every each group for performing character measurement, computing a breeding character average value or a multi-character comprehensive selection index, sequencing according to sizes, and at least selecting five groups serving as cone breeding groups by adopting a last-one-out system; selecting largest female and male individuals from every each selected group, mating male individuals of a No.1 group with female individuals of a No.2 group, mating male individuals of a No.2 group with female individuals of a No.3 group, and so on, and rotationally mating, wherein the ratio of female individuals to male individuals is 2:1, and at least four male individuals are selected; and breeding generation after generation to over five generations. Due to the adoption of the method, high selection strength is realized, genetic gain is increased, and the genetic improvement of every each generation of the bred pinctada fucata can be over 15 percent.

The invention relates to an artificial maturing method for exopalaemon carinicauda in anestrous seasons, in particular to an artificial reproduction method for exopalaemon carinicauda in autumns and winters by means of regulating and controlling the temperature and the illumination cycle and enriching nutrients for the exopalaemon carinicauda. The artificial maturing method mainly includes controlling the temperature of water; regulating and controlling the illumination cycle; and enriching nutrients for the exopalaemon carinicauda. Temperature control equipment simulates a procedure that the temperature of water in springs rises gradually so as to control the temperature of the water; fluorescent lamps and a timer simulate a procedure that the illumination cycle is gradually prolonged in the springs so as to regulate and control the illumination cycle; and fresh baits such as nereid are fed to the exopalaemon carinicauda to enrich nutrient supplied for the exopalaemon carinicauda in a gonad development procedure. The exopalaemon carinicauda can smoothly reproduce by laying eggs after being bred for 2-3 weeks under the condition. The artificial maturing method has the advantages that characteristics that the temperature of the water gradually rises in the springs and the illumination cycle is gradually prolonged under natural conditions are simulated, so that gonads of the exopalaemon carinicauda are developed in the anestrous seasons, the exopalaemon carinicauda reproduces by laying the eggs in the anestrous seasons, and the purpose of controlling reproduction of the exopalaemon carinicauda throughout the year is achieved.

The invention relates to the technical field of breeding of hybrid turtles, in particular to an artificial breeding method of Chinemys reevesii-Ocadia sinensis hybrid turtles. The method comprises the steps of selection and breeding of parent turtles, collection of turtle eggs, artificial incubation, baby turtle breeding and young turtle feeding. In a breeding season, vermiculite serving as an incubation medium is paved at the bottom of an incubator by 3-6 centimeters; fertilized eggs are placed into the incubator at the intervals of 0.3-0.9 centimeter; a vermiculite layer of 2-4 centimeters is covered; and at an incubation period, the humidity of the vermiculite is kept at 20-25 percent. The room temperature in during incubation is controlled at 28-33 DEG C; and baby turtles are incubated 55-63 days later. Compared with other incubation media, the vermiculite has the advantages that heat preservation, moisture preservation and permeability are facilitated; the incubation condition and facility are improved; the incubation success rate of the Chinemys reevesii-Ocadia sinensis hybrid turtles is increased; and the physique of the baby turtles is enhanced. The artificial breeding method is suitable for greenhouse large-scale artificial breeding of the Chinemys reevesii-Ocadia sinensis hybrid turtles.

The invention discloses a method for distant hybridization of cyprinuscarpiohaematopterus and megalobramaamblycephala subfamilies. The method comprises the following steps: taking cyprinuscarpiohaematopterus as female parent fish and megalobramaamblycephala as male parent fish, artificially inducing spawning of the female parent fish and the male parent fish in a breeding season, carrying out dry artificial insemination, incubating obtained fertilized roe in running water in an incubation tank to obtain hybrids of the cyprinuscarpiohaematopterus and the megalobramaamblycephala, and testing and screening the hybrids to obtain diploid cyprinuscarpiohaematopterus, diploid common-carp and crucian-carp hybrids and diploid crucian carp. The method for distant hybridization of the cyprinuscarpiohaematopterus and megalobramaamblycephala subfamilies integrates the excellent characters of the cyprinuscarpiohaematopterus and the megalobramaamblycephala, enriches the fish species on the market, lays a favorable foundation for selection and breeding of excellent species, provides precious resources for follow-up selection and breeding of novel polyploid fish and is of great biological significance in biological evolution and genetic breeding of fish.

The present invention discloses double-lamb prime for raising the propagation ability of geep. The double-lamb prime consists of testosterone-3-carboxymethyl oxime-ox serum protein emulsion, and Chinese medicine powder prepared with epimedium, motherwort, angelica, actinolite and astragalus root. The testosterone-3-carboxymethyl oxime-ox serum protein emulsion is injected to female geep to promote the growth of egg follicle in ovary; and the Chinese medicine powder is fed to make female geep change in physiological state, so as to ovulate more. The present invention can reach 30-40 % higher reproduction rate.

The method discloses a cultivation method for preventing oysters from being suffocated. The method mainly comprises three main steps of site selection, hanging raft cultivation and water quality monitoring. The traditional cultivation method comprises the following steps that substrates are put in the seawater, oysters are adhered and fixed on the substrates for cultivation; the oysters cannot move; when the seawater conditions, such as seawater temperature and salinity, are changed and the oysters are in breeding season, the oysters are dead due to the fact that the oysters cannot discharge sperms and eggs caused by environment change. According to the cultivation method for preventing the oysters from being suffocated, the oysters are cultivated by means of being adhered to hanging strings, and a fixed cultivation mode is changed into a movable cultivation mode, so that the oysters can be transferred and cultivated in the environment with appropriate seawater temperature and salinity, and the death rate, caused by the fact that the oysters cannot discharge sperms and eggs, is reduced in the oyster cultivation process. By employment of the method, disclosed by the invention, for cultivating oysters, the oyster death rate is reduced to 20% from 60%. The cultivation method for preventing the oysters from being suffocated has the advantages that the high-efficient and healthy development of oyster cultivation industry is promoted, and the economic benefit of the oyster cultivation industry can be increased.

The invention discloses a hatching method of Mauremys mutica. In propagation season, ventilate plastic box is taken as hatching box. Vermiculite layer of 3-6cm thickness is laid on the bottom of the hatching box as hatching medium. Fertilized eggs are put on the hatching medium with the space of 0.3-0.8cm, and then another layer of vermiculite of 2-3cm thickness is covered on the fertilized eggs. The humidity of the vermiculite layers in the whole hatching period is maintained 15 percent-20 percent, and the temperature in the whole hatching period is controlled 25-33 centigrade. Young tortoises are hatched 55-63 days. The invention adopts the vermiculite as the hatching medium, makes use of the preferable warmth retention property, moisture retention property and permeability of the vermiculite, improves the hatching success rate of the Mauremys mutica, shortens the hatching period and enhances the quality of newborn young tortoises.

The invention discloses an andrias male and female natural pairing imitative ecological efficient breeding method. The method comprises the steps that male and female andrias are raised in a mixed mode, wherein the young male and female andrias is raised in a mixed mode; trial pairing is conducted on breeding male and female andrias, wherein when getting close to sexual maturity, the andrias is placed into a trial paring pool, in a breeding season, namely between August and September, the secondary sex characteristic becomes obvious, the pairing succeeds, the andrias is selected out and placed into a breeding pool, and the trial paring pool and the breeding pool are constructed and constituted by multiple river channels and caves; breeding is conducted in the breeding pool, wherein the andrias which is successful in pairing is placed into the breeding pool which is provided with only two caves, female andrias needs to be isolated after laying eggs, and male andrias is not disturbed to hatch; young andrias is raised, wherein the young andrias is not fed from the shell-emerging time to the 30th day, 30 days later, the young andrias is fed with tubificidae and water earthworm, one year later, the young andrias is fed with young grass carps and young carps, three years later, the andrias is sold as commodities, and seven years later, excellent offsprings are reserved for breeding; bait fishes can be casted after the bait fishes are raised for three to five days temporarily and no disease attach is found; at the earlier ovulation stage, the female andrias needs to be fed with crabs, loach and shrimps; water bodies, water channels and bait are disinfected with 0.5-3% of disinfection salt, and appliance is disinfected with potassium permanganate; when the bait fishes are casted, the bait density is increased.

A method for mullet artificial breeding in batches belongs to the field of fishery. The invention relates to a technical field of aquaculture, in particular to the method for mullet artificial breeding in multiple batches, and is characterized by comprising a whole process of the six stages of parent postpartum recovery, parent breeding, parent antenatal breeding in batches, parent fish selectionand hasten parturition, oosperm incubation and larval breeding; female fish occupying proportion is increased, the grouping is carried out at a low temperature period, and temperature and light control breeding in a back room is combined; according to the method, the use time of artificial breeding equipment is prolonged, the technical problem is solved that mullet artificial breeding for a long time in multiple batches is difficult, the egg grain cardinal number of breeding groups with same quantity is doubled or more, three batch breeding in a breeding season is achieved, the breeding time is prolonged by three times or more, and the fish fry breeding quantity is increased by three times or more. The fish yield-increasing effect in a breeding period is significant, and the method is applicable to industrialization large-scale development.

A hybrid selective breeding technique for high-quality, high-yield sea urchins includes the following steps: selecting sea urchins into a breeding farm from various geographical groups, and culturing the sea urchins until the sea urchins become mature; establishing at least 100 sea urchin families according to the female-to-male ratio of 2:1; culturing the sea urchins until the breeding season, randomly selecting sea urchins from at least twenty families, selecting thirty sea urchins from each family, and measuring weights, wet gonad weights, colors, Beta-carotene content, high-unsaturated fatty acid content, composition and other characters as information characters; formulating a comprehensive selection index for each character, queuing all the families according to calculated comprehensive selection indexes I, selecting 50 percent of families from the top, selecting individual sea urchins with the high comprehensive selection indexes I from the top of the selected families according to the female-to-male ratio of 2:1, so that the breed reservation rate can be less than or equal to 2 percent, and on the premise of preventing inbreeding, establishing at least 100 sea urchin families; and repeating the steps. The hybrid selective breeding technique for high-quality, high-yield sea urchins can breed sea urchins with stable characters and high quality.

The invention relates to a method for predicting the fertility of ganders. The method comprises the steps as follows: 1, determining response types according to the massaging stimulation response degree and speed, and carrying out objective scoring on the ganders; 2, in the beginning of a breeding season, stimulating the genital organs of the ganders by adopting a back and belly type massaging method, recording the time from massaging stimulation to ejaculation reflection at the same time, and collecting seminal fluids; 3, determining the individuals with the massaging stimulation scores of 2 and 3 according to different responses of the individuals on the massaging stimulation process as the qualified ganders; and 4, measuring the seminal fluid quantity, the seminal fluid concentration and the sperm activity of the ganders according to the seminal fluid quality. According to the method, the ganders are early selected according to stronger positive correlation of the early massaging stimulation response and the seminal fluid quality of the ganders in the whole breeding season, so that the gander selection accuracy is improved and the breeding efficiency is improved.

The invention discloses a method of hatching Yellow throat quasi-water tortoise, in the breeding season, employing ventilating plastic box as hatching box, laying a 3-6cm -thick sand grain layer on the box bottom as hatching base material, putting the fertilized ovum into the box, 2-3 fertilized ovum for every 100cm2, covering a 1-3cm-thick sand grain layer, the water content of the hatching bed during the whole hatching period is maintained 5-10%; and the temperature is controlled in 28-30 Deg C, then getting the infant tortoise with balanced sex ratio after 65-70 days later. The invention can increase the success rate of hatching Yellow throat quasi-water tortoise, and the survival rate of the infant tortoise.

The light inducing catch basin device for killing mosquito lava includes draining grating comprising grating, grating frame, water collecting tank and draining pipe; and separated egg laying cavity, mosquito raising chamber and emergence chamber. The present invention features the grating as inclined shading sheet, the mosquito raising chamber and the emergence chamber lighted through the grating frame, and the draining pipe inserted into water and with opened lower mouth for draining. Female mosquito flies through the holes in the grating into the egg laying cavity to lay egg, the mosquito lava is induced by light into the mosquito raising chamber, and the emerged mosquito can not escape from the emergence chamber. The present invention has simple structure, and may be used widely in catch basin to control mosquito propagation.

The invention relates to a technique for masculinizing large groupers by surgical implanting. According to the technique, individual large groupers more than four years old are selected, manually prepared hormone sticks containing 17Alpha-methyltestosterone are implanted into dorsal muscles of the selected groupers in a surgical manner 6 months before a natural propagation season so as to masculinize the individual large groupers, the individual large groupers mature on the propagation season and become male parent fishes required by artificial grouper propagation. The technique has the advantages that by surgically implanting the hormone sticks, the large groupers can be masculinized at a higher rate up to 100%, with no re-feminization occurring; dosage of the surgically implanted hormone sticks is easy to control, implants act for a lifetime after being implanted, no enhanced supplementary implanting is required, the surgery is simple and reliable, and little injury is caused; the hormone sticks are simple to make, controlling is easy, no contamination occurs, and the hormone sticks made can be stored for a long period of time.

The invention provides an artificial propagation method of plectorhinchus cinctus. The method comprises the following steps: (1) parent selection; (2) a parental cultivation pond; (3) cultivation of parent fish in an anestrous season; (4) intensifying cultivation before propagation; (5) artificial inducement for spawning; and (6) incubation of fertilized ova. By reasonable cultivation and management, the method can cause the sexual glands of plectorhinchus cinctus parent fish to achieve synchronous maturity, the mature time is one month earlier (the mating season of plectorhinchus cinctus is generally from April to May, and the method can complete fertilization in early March), meanwhile, the fertilization rate and hatchability can be increased to 95%, and the malformation rate is reducedto 1%.

The invention relates to a Chinese herbal medicine nutritional feed for cultivating giant salamanders. The Chinese herbal medicine nutritional feed is prepared from the following components in parts by weight: 9-17 parts of astragalus membranaceus, 3-6 parts of bighead atractylodes rhizome, 3-5 parts of divaricate saposhnikovia root, 5-9 parts of semen cuscutae, 4-6 parts of epimedium herb, 4-8 parts of prepared rehmannia root, 0.3-0.6 part of calcium hydrogen phosphate, 2-4 parts of algae powder, 1-2 parts of unsaturated fatty acid, 1-2 parts of bacillus subtilis, 0.3-0.6 part of L-lysine hydrochloride, 0.05-0.1 part of zinc citrate, 0.05-0.1 part of organic iron, 0.1 part of vitamin and 0.2 part of microelement. The vitamin comprises VA, VB1, VB2, VB6, VB12, VC, VD and VE. The microelement is microelement amino acid chelate or is one, two or three of zinc, iron and calcium. The Chinese herbal medicine nutritional feed for cultivating the giant salamanders can meet the nutritional requirements of the giant salamanders, the immunity and the sexual gland maturity in mating seasons of the giant salamanders can be improved, and the sperm viability of male giant salamanders is enhanced.