231 results about "Weatherfish" patented technology

A loach fish fry artificial cultivation method is characterized by comprising spawning and hatching process, 7-day (d) fish fries cultivation and 15 d fish fries cultivation, wherein the spawning and hatching process comprises the following steps: parent fish rearing and selecting; artificial induction; fertilization process; and fertilized egg hatching process. A loach fish fry reinforced cultivation method comprises the following steps: adopting indoor flat surface slot to cultivate the 7 d fish fries and the 15 d fish fries, reinforced culturing fish fries, stocking loach fish fries to a pond after the 7 d fish loach fish fries and the 15 d fish fries grow up, and thereby greatly improving fish fry indoor cultivating survival rate and fish dries pond descending survival rate. A result of an experimental research shows that: the indoor cultivating survival rate of the 7 d fish fries reaches up to 87.8 percents, the pond descending survival rate reaches up to more than 30 percents, the 15 d fish fries reaches up to 92.6 percents, and the pond descending survival rate reaches up to more than 50 percents. The loach fish fry artificial cultivation method is scientific and rational, easy to implement, and good in practicability. By using loach fish fry artificial cultivation method, the fish dries pond descending survival rate can be greatly improved, and good economic benefit can be obtained.

The invention provides an industrial loach breeding and fry culturing method and belongs to the field of aquaculture. The method includes industrial breeding and fry culturing workshop construction and a specific breeding and fry culturing method. The specific breeding and fry culturing method includes: arranging bi-layer open net cages in a cement pool in a breeding workshop, wherein inner net cages are rutting and spawning places for parents, and outer net cages receive eggs concentratedly; and arranging a plurality of open foam boxes in a hatching and fry culturing workshop, placing the eggs into the foam boxes after counting, feeding loach fries by micro initial feed after hatching to fries to enable the loach fries to live through an initial critical period to become strong fries, and selling the fries or placing the fries into a pond for large-scale fingerling rearing. A workshop production process is adopted, breeding and hatching and fry culturing environments are guaranteed effectively, operation is facilitated, working efficiency is high, fecundity can be measured accurately, fertilization rate reaches above 98%, hatching rate basically reaches 100%, fry survival rate basically reaches 100%, and survival rate of large-scale fingerling rearing by placing the strong fries into the pond reaches above 50%.

The invention discloses a method for ecologically cultivating loaches in a paddy. The method includes the following steps that the paddy is fertilized and raked, an outer annular ditch is excavated in the portion, 1-1.5 m away from the edge, in a field ridge, and a cross-shaped ditch or a groined ditch is further excavated in the outer annular ditch to form a communicated cultivating ditch; an escaping prevention device is erected on the outer annular ditch; the outer annular ditch is provided with a water inlet, a drainage opening and an overflow port; the paddy is sterilized by dissolving calcium oxide in water, and the whole paddy is raked next day; fermented manure is applied to the paddy for water fertilizing; seedlings of a rice variety are inserted into the paddy after water fertilizing, wherein the stalks of the seedlings are strong, the seedlings are resistant to lodging, diseases and fertility and grow in deep water, and the yield is high; after the seedlings turn green, loach seedlings are placed into the paddy; feed is thrown during cultivation according to growth conditions of the loaches, and meanwhile the transparent degree of water ranges from 25 cm to 30 cm. The loaches cultivated through the method are natural and free of pollution and are pure green food, little fertilizer is applied to the paddy, fertilizer investment is reduced, and meanwhile the yield of rice harvested from the paddy is increased to some extent.

The invention discloses a fish nest used for breeding loach artificially, which comprises a pot with an opening at the top and palm barks. The pot has a double-layer structure, a separation net with 10 to 15mm of meshes is fixedly arranged between an upper layer and a lower layer, and the middle part of the upper surface of the separation net is provided with an inducing fish nest. The palm barks are laid on the inducing fish nest. The lower layer of the pot is provided with an egg-collecting bed with mesh holes which are less than or equal to 120 meshes, and the area of the egg-collecting bed is larger than 90 percent of the area of the pot bottom. At least a net piece at one lateral side of the lower layer of the pot is connected with a pot body in demountable form. The fish nest of the invention can effectively prevent parent fishes from swallowing germ cells, and the egg grain at the bottom of the pot can also be collected, which further improves the hatch rate of the germ cells, improves the breeding quantity of unit parent fish, thus being convenient for using and having good application prospect.

The invention discloses a rice field cultivation method for misgurnus anguillicaudatus and relates to the field of aquaculture. The method comprises the following steps: selecting a pollution-free parcel of a rice field, and finishing basic facilities for cultivating the misgurnus anguillicaudatus in the rice field, wherein soil is loam or clay, the pH value is 5.5-7, and the parcel area is 333-2,000 m<2>; after rice turns green, draining water in the field completely, and exposing for 3 days, wherein the applying amount of an organic fertilizer is 50 kg/mu; adding water to be 20-30 cm, putting 75 kg of loach species with the size of 5-6 cm per mu, and feeding artificial feeds once at each day, wherein the feeds are special hard granulated feeds for the misgurnus anguillicaudatus, and the daily feeding amount accounts for 3-4 percent of the body weight of the misgurnus anguillicaudatus. The rice field cultivation method for the misgurnus anguillicaudatus provided by the invention is simple in operation process; the misgurnus anguillicaudatus is cultivated by using the rice field; the yield per mu of a paddy field can be increased, the cultivation scale of the misgurnus anguillicaudatus can be expanded, and the development of the misgurnus anguillicaudatus cultivation industry is promoted. Compared with a conventional method, the method has the advantages that the survival rate of the cultivated misgurnus anguillicaudatus is higher; the growth speed of the misgurnus anguillicaudatus is higher; the quick growth of the misgurnus anguillicaudatus can be promoted by the adoption of a traditional Chinese medicine composition, and the stress response of the misgurnus anguillicaudatus is reduced; by adjusting a rice field fertilization method, the adverse effect on the misgurnus anguillicaudatus caused by rice field fertilization is reduced.

The invention belongs to the field of cultivation and particularly relates to a loach larva cultivating method. The method includes the following steps that firstly, breeding and oviposition are performed; secondly, eggs are put into an incubation pool to be incubated evenly, an oxygen boosting rod is placed beside the pool, the oxygen boosting rod is placed at the bottom of the pool after loach larvae get out of membranes, and the loach larvae are cultivated; thirdly, pond cleaning medicine is used for cleaning the pond, water filling and fertilizing are started three days later, and when the color of water of the pond is cultivated to be yellow green, the loach larvae are put into the pond; fourthly, before the loach larvae are put into the pond, the loach larvae are put into oxygen bags at first, the oxygen bags are put into the pool for buffering and then, the loach larvae are put into a net box; fifthly, milk powder and quail egg yolk are used as bait for feeding the loach larvae; sixthly, powder materials starts to be cast after seven to ten days. The rate of survival of the larvae cultivated with the loach larva cultivating method is improved to be more than 35%. By adjusting the position of the oxygen boosting rod, the density of the eggs can be adjusted, workloads are reduced, the cost in cultivating the larvae is reduced and economic benefits are boosted.

The invention discloses an artificial propagation method for Taiwan mud fishes and belongs to the propagation technologies for fresh water mud fishes. The method includes the following steps that (1), parent mud fish fries are selected; (2), artificial spawning induction is performed; (3), artificial fertilization is performed; (4), hatching is performed. According to the technology, the method that human chorionic gonadotropin (HCG), hypophyses or luteotropin releasing hormone d-ala analogs and other spawning induction medicine are injected to the backs of the parent mud fishes is adopted, so that the spawning induction rate of the parent mud fishes is increased over 91.0%; according to the technology, the fertilization rate of the parent mud fishes is increased over 96.6% through artificial fertilization, and the hatching rate of the parent mud fishes is increased over 98.0% through still water hatching; the survival rate of the parent mud fishes after artificial propagation reaches 90.9%. Propagation is performed by the utilization of the method, so that the survival rate, the spawning induction rate, the fertilization rate and the hatching rate of the Taiwan mud fishes are much higher than the corresponding rates through natural propagation and traditional propagation method for the mud fishes, industrialized production of the Taiwan mud fishes can be achieved, the fries are provided for large-scale farming, and high economical benefits are obtained.

The invention relates to a method for culturing mud fish by using a net cage, and relates to the technical field of mud fish raising. The method comprises the following steps of: manufacturing the net cage by taking metal as a frame and high-quality nylon net cloth as a net surface; paving soil on the bottom surface in the net cage; putting the net cage into a culture water body to perform the operation of net cage soaking and disinfection in January or February; selecting mud fish offspring seeds of 5 to 7 centimeters in May; and disinfecting the mud fish offspring seeds, and putting the disinfected mud fish offspring seeds into the net cage. The method has the advantages that the recapture rate is improved greatly and the labor cost is reduced effectively; and the mud fish can be supplied in time aiming at market demands, the economic benefit of farmers is improved obviously, and accurate data is provided for daily management and the study of culture.

The invention provides a method of catching mudfish and mud eel with a circular net, belonging to a fishing method. The invention comprises: decoy consisting of 13 percent of earthworm powder, 11 percent of wild mixed-fish powder, 15 percent of fresh goat blood powder, 6 percent of goat blood powder, 20 percent of mud eel orexigenic agent powder, 18 percent of eel-seducing powder, 8 percent of ferula foetida regel, 9 percent of swollen powder, the percentage being percentage by weight, all of which are taken according to certain proportion, delivered to a dryer to be dried, crashed into particles and mixed; a special cage comprising a lower cage and an upper cage, wherein he upper cage is connected with the lower cage and both the upper and lower cages are circular; while lower cage is provided with a framework of the lower cage which is connected with a net of the lower cage. The wall of the lower cage is uniformly provided with four converse beard ports of the lower cage. Each of the four converse beard ports is connected with a converse beard of the lower cage. The upper cage has a framework which is connected with a net of the upper cage. Hard netting is connected between the upper cage and the lower cage. The hard netting is connected with a bamboo splint converse beard. The fishing net of the fishing method has a simple structure, low manufacturing cost, good effect of trapping, high rate of trapping which reaches 98 percent and no influence on the law of life and normal growth of fish, is free from the restriction of landform and water surface of watershed and has low work intensity in fishing.

The invention discloses a paddy, loach and frog ecological integral planting and breeding method. The paddy, loach and frog ecological integral planting and breeding method particularly includes stepsof 1), selecting sites for paddy fields; 2), constructing the paddy fields; 3), disinfecting the paddy fields; 4), selecting paddy rice varieties; 5), planting paddy rice, and to be more specific, transplanting rice seedlings in wide and narrow row spacing rice seedling transplanting modes or under the conditions of the row spacing of 20 cm and the plant spacing of 15 cm in the middle ten days ofMay; 6), releasing tadpoles and loaches, to be more specific, releasing the tadpoles according to the density of 80-100 thousand tadpoles/mu in the first ten days of April, and releasing loach seedswith the lengths of 3-5 cm according to the density of 20-30 thousand loach seeds/mu in early June; 7), managing frog feed; 8), managing loach feed; 9), preventing and treating diseases of frogs and the loaches; 10), controlling diseases and insect pests of the paddy rice. The paddy, loach and frog ecological integral planting and breeding method has the advantages that the yield of the paddy riceplanted by the aid of the paddy, loach and frog ecological integral planting and breeding method can reach 400 kg/mu, the yield of the frogs bred by the aid of the paddy, loach and frog ecological integral planting and breeding method can reach 500-1000 kg/mu, the yield of the loaches bred by the aid of the paddy, loach and frog ecological integral planting and breeding method can reach 240 kg/mu, and accordingly the paddy, loach and frog breeding economic benefits and social benefits can be increased.

The invention discloses a method for incubating oriental weatherfish, which includes steps: firstly, preparing cement ponds and culture ponds, using at least one cement pond as a spawning pond to be disinfected, using at least two culture ponds as incubating ponds to be disinfected, and using at least one culture pond as water fertilizing pond to be fertilized with water; secondly putting parent fishes into the disinfected cement ponds for the parent fishes to lay eggs; thirdly, putting fertilized eggs obtained in the step 2 into the incubating ponds mentioned in the step 1; fourthly, when young fishes start swim 4-5 days after incubation, using bolting silk to filter the water in the water fertilizing ponds mentioned in the step 1 and adding the water into the incubating ponds, and transferring the young fishes in the cement ponds into the water fertilizing ponds; and fifthly, conventionally incubating the young fishes in all of the incubating ponds and the water fertilizing ponds, and breeding the fishes by the conventional method. The method for incubating oriental weatherfish reduces use of the cement ponds and solves the problem of undersupply of incubating facilities, and bythe method, incubating survival rate is up to 50%, and the results are unexpected.

The invention relates to the technical field of nutrition and feed for aquatic animals, and particularly relates to a special compound feed for loach seedlings, which comprises the following active ingredients in parts by weight: 25-35 parts of distillation-dried fish meal, 2-8 parts of premix, 25-35 parts of soybean meal, 5-15 parts of oil bran, 5-15 parts of rapeseed meal, 5-15 parts of flour, 0.5-7 parts of rapeseed cakes, and 0.5-5 parts of edible oil. The compound feed is prepared by sufficiently mixing all the active ingredients evenly and crushing into micropowder with 80-100 meshes, or adding 0.1-0.6 part by weight of aquatic binder into the crushed micropowder to produce granules with size of 1.2-1.5mm. The compound feed is scientific in product formula, balanced in nutritional ingredients and good in palatability, the body length of loach seedlings can be increased faster by more than 30%, the survival rate can be improved by more than 20%, and the total weight can be increased faster by more than 90%; the body length of large seedlings of more than 5cm is increased faster by more than 20%, the total weight can be increased faster by more than 85%, the feeding capability of the loach seedlings can be remarkably enhanced, the immunity of the loach seedlings can be strengthened, and after being fed with the feed, the loach seedlings have the characteristics of being strong in physique, tolerable with distant transportation, short in seedling growth delaying period, high in survival rate and the like.

The invention discloses an ecological breeding method of Eriocheir sinensis. The method comprises the steps that a pond is prepared firstly, an annular groove, an anti-permeable membrane and an inlet and outlet water pipe with a filtering mesh are arranged, water is poured after exposure, water plants are planted and loaches and diatom are placed in the pond after disinfection,, a biological agent and chicken manure are scattered and fertilized after water adding, the temperature, the dissolved oxygen and the PH value of the water are adjusted, the breeding pond is obtained, young Eriocheir sinensis is thrown into the breeding pond after being sterilized, feeding is carried out according to different growth periods of the Eriocheir sinensis, plant ash, the biological agent and inorganic salt type nutrient substances are scattered and fertilized regularly, and periodic water cleaning and disinfecting are carried out. According to the ecological breeding method, the environment and nutrient substances needed in the growth period of the Eriocheir sinensis can be provided, fast growth of the Eriocheir sinensis can be promoted, the specification and yield of the Eriocheir sinensis can be improved, and the method is ecological, environmentally friendly and economical.

The invention provides a high survival rate loach breeding method. The high survival rate loach breeding method comprises the following steps of preparing a breeding pool, disinfecting the breeding pool, selecting parent loach, preprocessing the parent loach, conducting spawning and hatching, temporarily breeding hatched loach fry, conducting intensified breeding in the breeding pool and conducting pool fry discharging or selling. The method is adopted for breeding the loach fry, the survival rate of the loach fry reaches up to 95%; an artificial induced spawning method is adopted, the spawning cycle is shortened, and the breeding efficiency is improved; when hatching is conducted, flow water flow hatching is adopted, and the phenomenon that fertilized eggs deposit on the bottom of the pool and die due to lack of oxygen is avoided; a thin net and a thick net are matched, the fertilized eggs can be effectively preventing from being pressed to death or eaten by the parent loach, and the hatching rate is improved.

The invention discloses a two-stage cultivation method for loach offspring seeds. The two-stage cultivation method includes a primary cultivation stage and a secondary cultivation stage. The primary cultivation stage includes putting newly hatched loach offsprings in a net cage for cultivation and providing palatable feed; the secondary cultivation stage includes putting the loach offsprings subjected to primary cultivation in a pond in the peak season of rotifer, providing the palatable feed, reducing feeding quantity of the feed during the conversion period from branchial respiration to intestinal respiration of the loach offsprings, preventing parasites timely in the later period of cultivation, maintaining sufficient oxygen content of water, and completing the cultivation process of the loach offspring seeds until the length of the loach offsprings reaches 4-5cm. Compared with the prior art, the two-stage cultivation method has the advantages that survival rate of the loach offsprings is increased to more than 40% from present less than 10% in average, and the method is applicable to cultivation of the loach offspring seeds and has a broad application prospect.

The invention discloses a method for inducing misgurnus anguillicaudatus gynogenesis tetraploid fries by using heterogenenos sperms. The method comprises the following steps: selecting parents, performing genetic inactivation on sperms, inducing gynogenesis tetraploid fries, and performing cold shock treatment to obtain gynogenesis tetraploid fries. The highest fertility rate, hatching rate and survival rate of the gynogenesis tetraploid misgurnus anguillicaudatus can reach 76.99+/-2.51%, 54.54+/-1.87% and 17.9+/-0.65% respectively. The method disclosed by the invention has the characteristics of advancement, high efficiency, practicability and reliability, and has an important application value and a wide application prospect in the breeding of misgurnus anguillicaudatus.

The invention provides a polyculture method for fishes, eels and loaches and relates to the technical field of agricultural culture. The method comprises the steps: before stocking loach, eel and fish fries, carrying out collocation on culture pond environment, net cages and internal living environments of the net cages; sequentially stocking the loach and fish fries in culture ponds and then stocking the eel fries in the net cages according to living and growing habits of the loach, eel and fish fries; when the loach, eel and fish fries are subjected to stocking completely, carrying out feeding management operations, including daily feeding, daily management and disease control on the loach and fish fries in the ponds and the eel fries in the net cages. According to the polyculture method for the fishes, eels and loaches, problems in the current intensified culture mode are solved, the yield of culture is increased, and the benefit of culture is improved.

The invention discloses a loach large-scale ecological breeding method. Only tubificidaes are taken as food during the whole loach breeding process. The breeding method comprises the following steps: building a breeding pond: selecting two different-scale cornfields or rice fields with sufficient water source, rich nutrient, convenience in irrigation and drainage and slight slopes on periphery as construction bases of the breeding pond; breeding tubificidaes; putting in loach larva: after breeding the tubificidaes in the attached pond for 40-45 days, putting in the loach larva according to the breeding density of 90-100 loaches per square meter, and using a mesh screen for fishing till the loach larva grow into the aged loach meeting the fishing demand. According to the loach large-scale ecological breeding method provided by the invention, the tubificidaes are taken as food during the whole loach breeding process, the breeding mode of excessively depending on artificial diet in the present aquaculture is settled and the entire defective situation of the aquaculture caused by the water pollution during the breeding process is settled.

The invention discloses a method for culturing loach fries by using loach initial feed biological culture media, and relates to an aquaculture technique. The method adopts the following culture medium ingredients in mass percentage: 0.01 to 0.05 percent of rotifer spawns, 20 to 40 percent of bean pulp, 2 to 6 percent of meat and bone meal, 40 to 60 percent of pulverized fermented straws, 10 to 20 percent of fermented chicken manure and 1 to 1.5 percent of composite mineral salts. According to a preparation method, the raw materials are uniformly mixed and pulverized to powder or granular mixtures to be used. According to requirements, no peculiar smell, no foreign taste, no mildew and no foreign matters are generated, and the water content is lower than 17 percent. The method has the advantages that the feed biological culture media are green, safe and pollution-free, the preparation is simple, and the use is convenient; rotifer cultured by the feed biological culture media is palatable for the loach fries, and the biomass is great, and the peak period duration of the rotifer is long; the feed biological culture media are used, the survival rate of the loach fries is obviously improved, the fry cost is reduced, and the scale production requirement of loaches is met.

The invention discloses a method of cultivating Misgurnus anguillicaudatus and relates to the field of aquaculture. The method comprises: selecting a pond that is 80-100 cm in depth and 50-60 cm in height, has a mud layer 20-25 cm thick and a water inlet and a water outlet, has clear water and suitable area and is leeward and sunward; sterilizing the pond before putting of fry; selecting fry, and sterilizing by immersing with 40 g/L before putting of the fry to kill pathogens on fish bodies; feeding with artificial mixed feed, and adding the ingredients into the feed regularly, such as allicin and Chinese herbs; catching; the method has the advantages that pond environment can be improved, diseases in Misgurnus anguillicaudatus can be prevented, survival rate and yield can be increased, reproduction speed is high, flesh of cultivated Misgurnus anguillicaudatus is delicious in taste and rich in nutrition and is green and safe, and yield is increased.

The invention provides a method for breeding loach in a macrobrachium pond in a mixed mode, and belongs to the field of aquaculture. The method includes the following steps of breeding pool selection, disinfection, fertilizer applying, water plant culture, young loach throwing, young macrobrachium throwing and feeding. By means of the omnivory characteristic of loach, excessive bred young macrobranchium and sick and weak macrobranchium are eaten as bait, and therefore the self-breeding amount of macrobranchium is controlled, and the specifications of macrobranchium coming into the market are large. Meanwhile, loach frequently gets into mud to move, and therefore the bottom mud can be loosened, the decomposition of ammonia nitrogen and nitrite in a water body and organic matters in the bottom soil is promoted, the self-cleaning and repair capacity of the breeding water body is enhanced, diseases are reduced, water is basically not changed in the whole breeding process, and the ecological environment is effectively maintained while the aquatic product quality is improved.

A method for mixing loach and crucian carp in paddy fields comprises the following steps: selection and treatment of paddy fields, planting of rice seedlings, feeding of loach seedlings and crucian carp seedlings, feeding of feed and fertilizer, paddy field management, and prevention of pests and diseases. The breeding method of the present invention utilizes water areas rationally, can utilize loach and crucian carp to help eliminate the pest of paddy field, and the excrement of loach and crucian carp can be used as the fertilizer of rice again, and some plant fragrances that rice grows distribute can improve the meat quality of loach and crucian carp again, Using the cultivation method of the invention can reduce the usage of chemical fertilizers and pesticides, does not damage soil fertility, can increase rice production by 5-8%, and meanwhile, the yield of loach and crucian carp is improved compared with the normal cultivation method.