950 results about "Carp" patented technology

The invention relates to a general-purpose composite Chinese herbal medicine immune enhancer for freshwater cultured fish, which is made of raw materials with the following weight ratios, based on the amount added per ton of feed: rhubarb 800-2000g; Sanqi 350-1000g; water Silybum 1200-2500g; Cassia 600-800g; Astragalus 600-2000g; Scutellaria baicalensis 500-900g; 500-1500g; Garlic 1000-2000g. After many tests in the laboratory, it has been proved that the general-purpose compound Chinese herbal medicine immune enhancer for freshwater aquaculture fish can improve the survival rate of a variety of freshwater aquaculture fish in the process of attacking viruses; The long-term breeding experiment of farmed fish feed proves that the general-purpose compound Chinese herbal medicine immune enhancer for freshwater farmed fish can effectively reduce the incidence of a variety of high-density farmed freshwater fish and improve the survival of the breed; the additive is safe, efficient, and has no side effects for long-term use. The breeding objects have strong vitality, rapid growth, bright body color, high feed conversion rate, and good breeding benefits.

At first, breeding filter feed silver carp, carp and crucian carp in area of water bloom breakout to control algae growing; pelagian eats small algae to reduce quantity of the algae; spiral shell and clam can moves carrying roes toincrease fish spreading area; cyanophage, dissolved algae bacteria and other microbe eating algae are separated and purified from natural water, which is cultured to large quantities in laboratory then to be put in blue algae water bloom breakout orea to control algae; resumption of water plant in water bloom breakout area can control algae growing. Last is getting rid of algae by machine including fixed blue adgae water bloom removing machine and mobile blue adgae water bloom removing machine.

The invention relates to a mixed feed for mixed aquaculture of freshwater fishes. The mixed feed includes a basic material. The basic material includes fish meal, soybean meal, wheat, cottonseed meal, rapeseed meal and soybean oil, and also includes by weight: 1.5-2.2% of calcium phosphate, 1.5-2.2% of bentonite, 1.5-2.2% of zeolite powder, 0.1-0.25% of choline chloride, 0.1-0.25% of salt, 0.02-0.05% of compound probiotics, 0.04-0.08% of vitamin C, 0.005-0.02% of allicin, 1.0-2.0% of compound vitamins and 1.0-2.5% of compound mineral salts. The feed is suitable for intensive culture or polyculture of megalobrama amblycephala, black carp, grass carp, common carp and the like, so that the freshwater fish feed is generalized, the return rate of the feed is improved, the aquaculture water eutrophication and fish liver and gallbladder diseases are reduced, the output of unit aquatic products is raised, and the economic benefits of farmers are significantly improved.

The present invention is artificial breeding method and incubator for Shatang carp. The artificial breeding method includes the steps of parent fish breeding, spawning and fertilization, hatching and carp fry culturing. After intensified parent fish breeding, temperature control, flow water stimulation and other method are taken to promote the synchronous spawning and fertilization of parent fishes, the fertilized eggs on tiles are sterilized and hatched in a special hatching device, and the hatched carp fries are cultured in a special cement pond. The artificial hatching device is one rectangular hatching tank with shield, ventilating water circulating pump, water level and water flow controlling mechanism. The technology of the present invention is suitable for large scale production of Shatang carp fry.

The invention relates to a formulation technology of the compound feed for carps. The compound feed is prepared from the following raw materials in percentage by weight: 20-30 percent of soybean meal CP 46%, 18-23 percent of cottonseed meal CP 45 %, 12-18 percent of rapeseed cake, 4-10 percent of imported fish meal, 13-20 percent of wheat, 4-9 percent of rice bran, 2-10 percent of maize gluten feed, 1.6-3 percent of soybean oil, 1-2 percent of calcium biphosphate, 0.1-0.3 percent of salt, 0.15-0.3 percent of choline chloride 50% of content and 0.7-1.3 percent of carp premix compound, and the sum of the components is 100 percent. The compound feed for carps, which is prepared by the formulation of the compound feed for carps, enables carps to grow rapidly and have high single birth and strong disease resistance and has low bait factor, decreased culture cost and obvious economic benefits.

The invention relates to the technical field of aquaculture, and specifically relates to a feed for siniperca chuatsi. The feed is prepared by the following raw materials by weight: 55-60 parts of corn, 20-22 parts of rye bran, 10-12 parts of peanuts, 20-25 parts of rapeseed meal, 6-8 parts of chironomidae larvae powder, 8-10 parts of small carp meal, 8-10 parts of loach dry powder, 6-8 parts of herba houttuyniae, 10-12 parts of white fish meal, 6-8 parts of escargot powder, 8-10 parts of dry sphagna powder, 5-6 parts of meat and bone meal, 6-8 parts of radish leaves, 0.5-1 part of rheum officinale, 1-2 parts of saponin, 1-2 parts of felwort, a proper amount of salt and 4-5 parts of a phagostimulant. In consideration of the carnivorous characteristic of the siniperca chuatsi, an abundance of raw materials such as small carp meal, loach dry powder, white fish meal and escargot powder are added in the prepared feed for siniperca chuatsi, so that enough nutrients are provided for the growth and development of the siniperca chuatsi. Traditional Chinese medicine components such as herba houttuyniae, rheum officinale and saponin are added, so that disease-resistant capacity of the siniperca chuatsi can be enhanced. Particularly, parasitic diseases can be prevented; morbidity of the siniperca chuatsi is reduced; and loss of culture benefits can be prevented.

The invention relates to a carp feed and a preparation method thereof. The carp feed is prepared by blending wheat middling, corn germ meal, rice bran, bean pulp, cottonseed meal, DDGS, rapeseed meal, pea albumen powder, fish meal, hemocyte albumen powder, meat meal, edible oil, calcium biphosphate, choline chloride 50%, special complex enzymes for aquatic products, special premix for carps and vitamins. By strictly selecting the raw materials and reasonably preparing the formula, the invention has balanced and comprehensive nutrition, strong pertinence and good luring property and stability, and can greatly improve the speed of growth of carps. Simultaneously, the advanced Zhengchang production equipment in China is adopted, and production processes are improved, thereby furthest preventing nutrient substances from being damaged by high temperature. Moreover, the product has the advantages of low cost, high efficiency, stable quality, convenient storage and no adverse side reaction.

The invention discloses amino acid fertilizer water slurry special for aquaculture and a preparation method of the amino acid fertilizer water slurry. The amino acid fertilizer water slurry consists of amino acid solution, microelements, fermentation organic matters, inorganic fertilizer, mineral matters, a water quality modifier and beneficial bacteria according to a certain proportion. The preparation method comprises the following steps of: A, producing the amino acid solution, i.e., a, hydrolyzing, b, neutralizing, c, filtering and d, concentrating; B, producing the fermentation organic matters, i.e., a, stirring, uniformly stirring organic matter raw materials with the amino acid solution, b, inoculating, uniformly stirring the organic matter raw materials with the beneficial bacteria, and c, fermenting; and C, producing the amino acid fertilizer water slurry, i.e., a, chelating, heating the amino acid solution, and adding the microelements under stirring for chelating, b, mixing, adding the fermentation organic matters, the inorganic fertilizer, the mineral matters, the water quality modifier and the beneficial bacteria in sequence and uniformly stirring and mixing, c, checking according to related quality standard, and d, packaging. According to the amino acid fertilizer water slurry, the immunity of fishes is improved, diseases are reduced, the breeding yield of spotted sliver carp is increased, the fish breeding cost is reduced, and the fish quality is improved.

The invention discloses a preparation method of an instant leisure flavored fermented fish product. According to the invention, living carp is used as a raw material to be prepared into the instant leisure fermented fish product with unique flavor through the steps of pretreatment, cutting into blocks, curing, drying, preparing a leavening agent, blending, sealing and fermenting. The method is combined with low-salt curing technology, microorganism mixed inoculation technology and temperature controlled fermentation technology on the basis of conventional fermented sour fish, so that the quality and safety of the sour fish can be improved, the storage period can be prolonged, the production cycle can be effectively shortened, the production efficiency can be increased, standardized and large-scale production can be facilitated, the earthy smell of freshwater fish can be removed, ester can be produced to enhance aroma, and the mature flavor and taste of the fish product can be increased. The fish product produced by adopting the method is soft and high in resilience of the meat, bright in color and thick in acid taste, can be eaten after being unsealed, and can be developed into an instant leisure flavored product.

An efficient carp farming method by using a free-of-water changing pond relates to a carp farming method. The efficient carp farming method aims at solving the problems of low farming efficiency, serious per se pollution to a farming water body and low survival rate of carps existing in the traditional farming method. The efficient carp farming method provided by the invention comprises the following steps: 1. setting of pond conditions; 2. fish seed farming; 3. feedstuff feeding; 4. farming management; and 5. regulation and control of water quality. The efficient carp farming method has the advantages of being free of discharging of farming sewage in the farming process and pollution to surrounding environments and capable of effectively increasing the survival rate of carps. The efficient carp farming method is applied to the field of carp farming.

The invention discloses a multi-species diversification healthy ecological breeding method. The method comprises the step of pond reconstruction. According to the pond reconstruction, a pond of 100 mu is built up into a land area, a shallow area and a deep water area, basically, one third of the pond is the land area, a half of the pond is the shallow area, and the rest is the deep water area. According to the variety throwing amount, one hundred carps, two hundred crucians, fifty spotted silver carps, twenty grass carps, five thousand pacific white shrimps, sixty turtles, three hundred river crabs and five hundred loaches are thrown. Alfalfa is planted in the land area for feeding the grass carps, lotus roots and wild rice shoots are planted in a part of the shallow area, and aquatic commercial crops such as water hyacinth and water spinach are planted in a part of the shallow area. In the deep water area, a cage is used for culturing five hundred tilapias to regulate and control the water quality. According to the planting density, three hundred and fifty kilos of the lotus roots are planted in one mu, three hundred and fifty wild rice shoots are planted in one mu, and the ratio of the medicago plant area to the culture area is larger than one to five.

The invention discloses a method of using carp skin for the enzymatic hydrolysis to prepare collagen, comprising the raw material treatment, non-collagen protein removing by sodium chloride, fat removing by petroleum ether extraction, collagen and papain extracting by citric acid, flavor enzyme common hydrolysis, vacuum concentration and spray drying. Then, carp skin collagen peptide which is white and has no fishy smell with the relative molecular weight of 8,000-15,000 is obtained. The enzyme hydrolysis process of the invention adopts the papain and the flavor protease to simultaneously hydrolyze the carp skin collagen, the enzyme hydrolysis time is shortened greatly which only requires 30min. A petroleum ether extraction method is used for removing the fat. Therefore, fats and residues of fat-soluble pigment in finished product of the carp skin collagen peptide are reduced greatly. The quality of the finished product is improved. The method has the advantages of high yield and collagen peptide extraction rate and perfect product purity.

The present invention relates to a carp feed, including the following raw materials by weight: 1-5% of fish meal, 15-25% of soybean meal, 10-20% of peanut meal, 8-12% of corn gluten meal, 15-25% of rice bran, 25.7-35.7% of wheat middling, 0.08-0.12% of bone meal, 0.008-0.012% of lysine, 0.008-0.012% of methionine, and 0.008-0.012% of multi-vitamin. The carp feed is prepared based on growth habit and physical characteristics of carps, and provides nutrients suitable for carp growth specifically, achieving carp rapid growth and ensuring delicious meat and abundant nutritions of the carps.

The invention relates to a cultivating method of a sinocyclocheilus grahami seedling, belonging to the technical field of fish culture. The cultivating method comprises the steps of the cultivation of fish fries growing mouths in rich water, artificial cultivation of fish fries, the rearing of fish fries at middle and rear stages and pest control. In the cultivation of fish fries growing mouths in rich water, a temporarily-cultivating pond is arranged in a tunnel, bait for fish fries growing mouths is chlamydomonas and rotatoria cultivated in rich water and the fish fries are cultivated at water temperature of 15 DEG C for 10-12 days. In the artificial cultivation of fish fries, the fish fries are cultivated by eel powder feed with the protein content of 40 percent for 40 days. The feed in the fish fries at middle and rear stages is carp crushed feed with the protein content of 39 percent. In the pest control, the water quality and the conditions of fish bodies are detected every three days, 50-80ml / mu of povidone iodine for controlling bacterial infection and 50-50ml / mu of rotatoria one-time removal (ammonium ethylene-bis-dithiocarbamate) for controlling balantidiasis are splashed every 15 days. The invention can effectively improve the survival rate and the growth speed of inocyclocheilus grahami seedlings, is simple and convenient, and is beneficial to being popularized and generalized. Bacterial.

The invention provides a preparation method for a standard sample of chloramphenicol residual matrix lyophiled powder in the muscle of a carp, which belongs to the technical field of animal food matrix standard substances in the residual detection of veterinary medicines. The problem that the bigger difference exists between the result of treatments such as extraction, purification and the like and a daily analytical sample as the condition of combining a target object with a matrix and a really detected sample are not consistent completely is solved. The method comprises the following steps of: carrying out cultivation and addition on a live carp by adopting chloramphenicol, so that the chloramphenicol is contained in carp in vivo, culturing the carp in water which does not contain a medicine until the medicine concentration in vivo reaches a stable metabolic state, fishing the carp, quickly freezing the carp to a temperature below -18 DEG C, unfreezing the frozen carp at a room temperature, taking a muscle part to homogenate to make into minced fillets, freezing, drying, screening and bottling the minced fillets, and encapsulating the minced fillets in a vacuum way, so as to prepare and obtain the standard sample of the chloramphenicol residual lyophiled powder in the muscle of the carp. The chloramphenicol concentration in the prepared standard sample is 1.0-10.0 [mu]g / kg.

The invention discloses bait for fishing crucian carp and / or carp and a using method of the bait and is characterized in that the bait comprises the following components in part by weight: 3-10 parts of earthworm meal, 3-10 parts of blood worm meal, 3-10 parts of silkworm chrysalis meal, 3-10 parts of fish meal, 3-10 parts of krill meal, 10-15 parts of maize meal, 5-8 parts of peanut meal, 5-8 parts of soybean meal, 10-15 parts of wheat germ meal, 3-8 parts of wheat protein meal, 20-30 parts of Alpha-starch, 0.5-2 parts of maize essence, 0.5-1 part of fragrant wheat meal, 0.5-2 parts of sodium cyclamate, 0.3-0.5 part of dimethyl-Beta-Dimethylpropiothetin (DMPT) and 0.2-1 part of trimethyl glycine; all that is needed to prepare the bait is milling the materials into powder and then mixing the materials; the bait is mixed with water in the proportion of 1:1, is kneaded to form dough and stands for 5 minutes, and then a user can pick a little dough by hand and hang the dough on a fishhook to fish. The bait has the advantages of high fish collecting speed, good fish trapping and fishing effects and high pertinence.

The invention discloses an ecological and nutritious mixing feed for cultivated German carp, which comprises soybean waste, fish meal, Cotton seed dephenolizing protein, soybean lecithin powder, soybean oil, calcium biphosphate, rice husk powder, microelement additive for fish, composite vitamins for fish, 50% choline chloride, bacillus licheniformis, beta-gluglucosan, xylooligosaccharides, and attapulgite clay.

A breeding method for the new variety of the carp relates to a breeding method of a new variety of the fish, which resolves the problems of the prior group breeding method for the culture and the cultivation of the carp that is easy to have the inbreeding, which leads to the decrease of the economic character and the production performance; the intraspecific hybridization method has great randomness, the probability for breeding an excellent variety is low and is easy to have the inbreeding. The breeding procedures are: 1. performing the phenotypic character selection; 2. detecting the genetic information of the parent strain; 3. performing the reproduction grouping according to the genetic information; 4. cultivating the filial generation to be matured; 5. adopting the offspring carp as the new generation of the breeding parent strain and repeating the operation procedures from 1 to 4 until the carp meets the character design requirements of the new variety. The present invention always uses the molecular marker to detect the genetic composition of the parent strain and the filial generation in the selection process of the new carp variety, thereby avoiding the inbreeding; moreover the character of the new variety of the carp is developed in the designed direction, the emergence probability of the excellent new variety is high; therefore, the economic character and the production performance of the carps are obviously improved.

The invention relates to the technical field of animal feed, and specifically relates to a carp feed and a preparation method thereof. The carp feed is composed of the following components in parts by weight: 12 to 16 parts of soybean meal, 15 to 18 parts of ceramic powder, 6 to 8 parts of DDGS, 13 to 17 parts of rice bran, 8 to 12 parts of rapeseed meal, 3 to 5 parts of chicken intestine meal, 8 to 12 parts of millet flour, 0.1 to 1.0 part of composite vitamin, 2 to 5 parts of traditional Chinese medicine addictive, and 0.5 to 1.5 part of sesame oil, wherein the traditional Chinese medicine addictive comprises the following components: honeysuckle flower, phellodendron, coptis, lithospermum, ligustrum lucidum, dandelion, mung bean, haw, radix astragali, medicated leaven, malt, poria cocos, dried orange peel, Chinese yam and fried malt. The carp feed improves the survival rate of fish and the body weight of adult fish, wherein the survival rate can reach 98% or more and the body weight growth rate reaches 118.28%, furthermore, reduces the feed coefficient, improves the feed conversion rate, and increases the economic profit.

The invention discloses a fish head food with the function of health care and a making method thereof, solving the technical problems of effectively retaining the nutritional ingredients of a fish head and combining various health care effects. The fish head food comprises the following components according to the weight ratio: 60 parts of Donting Hu wild variegated carp head, 3 to 5 parts of ginger piece, 20 parts of salt pickling paste material, 3 parts of beans used in laba porridge, 1 part of chicken powder, 5 parts of fermented glutinous rice with the solid content of 50%, 5 parts of tea seed oil, 3 parts of garlic piece and 1 part of minced shallot. The fish head food is made by using the following method that: a fish head and assistant materials are pickled after being mixed and stirred evenly, and are braised for 12 to 15 minutes at 97-99 DEG C. Compared with the prior art, the invention adopts a method of firstly pickling and then braising, retains the protein, calcium, phosphorus, iron, vitamin B1, lecithin and unsaturated fatty acid of the fish head, and is matched with the beans used in laba porridge, the tea seed oil, the fermented glutinous rice and spice simultaneously to cause the fish head to have sour and acrid taste and delicious meat and to have multiple health care effects of relieving inflammation, strengthening the spleen, stimulating the appetite, tonifying the brain, lowering blood pressure and resisting cancers simultaneously.

The invention relates to an individual labeling method of carp, in particular to an individual labeling method that PIT label is injected in the carp body for labeling, belonging to the technical field of aquiculture, which comprises the following steps: firstly, the PIT label and an injector are immersed in disinfection solution for sterilization; then the carp is anaesthetized; the sterilized PIT label is arranged in the injector needle; the abdomen wall is pierced with the needle on the side near the abdomen edge and anus of carp, and then the needle is pushed in the abdomen cavity along the abdomen wall; when the length of needle in the abdomen cavity is 0.8 to 1.0cm, the injector syringe is gently pushed to push the PIT label in the abdomen cavity of carp, and then the needle is extracted out. The invention has the advantages of ability of improving the retention rate of label, less impairment to the carp body in labeling and less influence on carp cultivation.

A method for culturing two hybrid varieties of fish includes such steps as providing wuchangfish (or red-scale carp) as female parent and topmouth culter (or red crucian carp) as male parent, injecting oxytocic, taking the mature ova, artificial insemination, incubation, culturing black fry by feeding soybean milk for 10-14 days, and culturing for 4-6 months. Its advantages are unique shape, high growth speed, and high resistance to stress.

The invention relates to the technical field of animal feed, and particularly relates to breeding season carp feed comprising the following components: by weight, 15-20 parts of soybean meal, 15-18 parts of wheat middling, 6 -8 parts of DDGS (distillers dried grains with soluble), 13-17 parts of rice bran, 10-15 parts of rapeseed meal, 3-5 parts of chicken intestine powder, parts of millet flour, 0.5-1.5 parts of compound vitamins, 2-5 parts of a Chinese medicine additive, 0.05-0.10 part of methionine, 0.05-0.10 part of lysine and 0.5-1.5 parts of sesame oil, the Chinese medicine additive consists of the following components: dried tangerine or orange peel, medicated leaven, malt, radix bupleuri, honeysuckle, motherwort, ligusticum wallichii, angelica, radix cynanchi bungei, cornu bubali, fructus ligustri lucidi, garden burnet, astragalus, codonopsis, zizyphus jujube kernel, radix isatidis, herba agrimoniae, calamus, herba schizonepetae, yam and mung bean. The spawning quantity of carps fed by the breeding season carp feed is 8.24% higher than the spawning quantity of carps fed by a common feed, the mortality rate of breeding season carps fed by the breeding season carp feed is 0%, so that the breeding season carp feed can significantly improve the spawning quantity and health condition of the breeding season carps so as to improve the output of the carps and increase the efficiency of enterprises.

The invention discloses a pond fish culturing technology. A method includes the following steps that a pond is cleaned, water is discharged, after the pond is cleaned, the pond is exposed to the sun till the bottom of the pond cracks, quicklime is used for disinfecting the bottom of the pond, the water discharging depth is 1.3 m, high-quality fry are selected for well completing the inspection and quarantine work in the fry throwing process, according to the throwing density and proportion of the fry, 400 grass carps are thrown per mu, each grass carp weighs 50-150 g, 10 silver carps are thrown per mu, each silver carp weighs 50-250 g, 300 golden carps are thrown per mu, each golden carp weighs 50-100 g, 100 common carps are thrown per mu, and each common carp weighs 50-100 g, water quality and water level control is conducted in daily management, fodder is used for feeding, taking the grass carps and the silver carps as an example, ryegrass is taken as the main fodder for the grass carps and the silver carps, disease prevention is conducted, powder chlorine dioxide is used for disinfecting and sterilizing, three times of insect killing is appropriate all the year round, trichlorfon and copper sulfate are generally used for insect killing, and catching and stocking are conducted in rotation. According to the method, the yield and the quality of polyculture fishes can be effectively improved, the diseases are reduced, and the culture benefits are improved.

The invention discloses a culturing method for sex reversal of a female carp to a male carp. The culturing method comprises the following steps that A. squeezing an abdomen of a 10-11-month-old carp, and separating a male carp with out-flown semen and a carp with no out-flown semen; B. inserting a copper roe digging device in a genital pore of the carp from which semen can not be squeezed, and selecting the carp capable of obtaining roe particles to cultivate the carp in a cement pond; C. according to the weight of the carp, feeding the carp with dosing fodders containing 17 alpha- methyltestosterone every day, and mix-injecting domperidone, luteinizing hormone releasing hormone and carp pituitary gland in the thoracic cavity of the carp in each five days; and D. after continuously processing the test carp for 2 months, squeezing the abdomen of the carp, the test carp with out-flown milky white semen is the sex reversal carp which is a female on genotype and a male on physiology. The culturing method is easy and feasible and is convenient in operation, and can be used for sex reversing the female carp on genotype into a male carp on physiology. The growth speed of the filial generation cross bred by the sex reversal carp and the common carp is fast and the economic benefits are remarkable.

The invention relates to a carp and crucian Chinese herbal phagostimulant, which is prepared from the following bulk drugs, by weight, 3-5 parts of seasoned orange peel, 3-5 parts of costusroot, 2-4 parts of clove, 2-4 parts of onion, and 1-2 parts of peppermint. The preparation method for the phagostimulant comprises: weighing seasoned orange peel, costusroot, clove, onion and peppermint Chinese herbal decoction pieces according to the weight ratio, and crushing into coarse powder; adopting a steam distillation method to collect distilled volatile oil of the crushed bulk drugs; carrying out decoction on the distilled drug residue three times with mild fire, and filtering, wherein three filtrates are respectively obtained; merging the three filtrates, and heating to obtain a concentrated solution; and merging the volatile oil and the concentrated solution, adding a preservative and water according to a certain weight, uniformly stirring, filtering, filling, and sterilizing to obtain the Chinese herbal phagostimulant. The Chinese herbal phagostimulant is used for carp and crucian feeding attraction, and has characteristics of easily available raw materials, easy use, low cost, good effect, safety and no toxic-side effect.

The invention discloses an ecological planting method of oryza sativa. The method comprises the steps of paddy field selection, field preparation, seed treatment, sowing and seedling raising, seedlingtransplanting, insect attack treatment, fertilizer management, irrigation management and harvesting. According to the ecological planting method of the oryza sativa, ducks, carps and frogs are stocked in the field, not only is deinsectization carried out, but also the point is that a biologic chain with characteristics of species commensalism and cyclic utilization is formed in the field, duck manure fertilizes the field, thereby not only multiplying fodder biology to be taken by the ducks, but also promoting the growth of the oryza sativa; the rice has good taste, and high content of nutrient substances.

The invention relates to a high-intensity selecting and remaining method of good carp parents. At present, in a selective breeding process of carps, the selection of standby parent fishes can be carried out only once within a breeding cycle, and the selection intensity is about 10 percent, i.e. 1 / 10 parents are reserved as standby parent fishes. Generally, a breeding cycle of the carps needs 2-3 years, and the selective breeding of a good breed needs to go through a plurality of breeding cycles, thus the prior breeding method for selecting and remaining the parents needs a relatively longer time to achieve a good breed. In order to overcome the defects that the selection can be carried out only once, the selection proportion is higher and the breeding pertinence is weaker in the selectingand maintaining process of the carp parents at present, the selection is carried out for multiple times aiming at main economic traits according to different growth and development stages of the samegeneration of fishes from fish fries to ripe fishes for laying eggs, and the selection intensity is improved, and the selections of a generation are equal to the selections of multiple generations, thus the time for selective breeding is greatly shortened, and the selection effect is improved.

The invention discloses a health carp ball. Raw materials for making the health carp ball comprise, by weight, 100-150 parts of carp, 6-8 parts of lemon, 15-20 parts of chrysanthemum nankingense, 2-4 parts of Artemisia capillaries, 9-15 parts of cassia seed, 8-12 parts of Poria cocos, 5-9 parts of Lophatherum gracile, 1-3 parts of Oxalis corniculata L., 10-15 parts of wild chrysanthemum flower, 6-8 parts of lotus leaf, 10-15 parts of Caulerpa lentillifera, 10-13 parts of watermelon peel, 9-12 parts of lotus rhizome, 8-12 parts of coriander, 10-20 parts of brown rice flour, 6-10 parts of red bean flour, 10-15 parts of egg white, 6-10 parts of cannabis oil and 4-8 parts of salt. The carp is adopted as a main raw material, and cooperates with other raw materials, so the carp ball made in the invention has abundant and balanced nutrition, has urination promoting, dampness excreting, intestine moistening, bowel relaxing and hypertension controlling effects, is suitable for fat people to eat, and is especially suitable for being used as a meal replacement.

The invention relates to cultivation gynogenetic fish, in particular to a method for cultivating gynogenetic carps. The method comprises the following steps of: performing artificial induced spawning on male megalobrama amblycephala and female ordinary carps which serve as male and female parent fish, mixing megalobrama amblycephala sperms inactivated by ultraviolet rays and mature ova of the ordinary carps, activating for 1 to 2 minutes, performing cold shock on the activated ova at the temperature of between 0 and 4 DEG C for 30 to 40 minutes, and incubating embryos obtained by the cold shock at the water temperature of between 20 and 21 DEG C to obtain diploid gynogenetic carps. The gynogenetic carps cultivated by the method have excellent descendant properties, high survival rate and stable inheritance, and have the great significance for the study on biological genetic breeding.