39results about How to "Prevention of fish disease" patented technology

An efficient organic fertilizer for aquatic culture is prepared from monoammonium (or biammonium) phosphate, peat and trace elements through proportioning, pulverizing and mixing. It can be used to culture the phytoplankton, zooplankton and useful algae, which can be used as biological feed, and prevent disease of fish.

The invention relates to a device for temporarily culturing caught finless eel in circulating water. The device is characterized by comprising a box, wherein the inside of the box is layered vertically to form a plurality of culture chambers, upper ends of the culture chambers are opened, and bottom surfaces of the culture chambers are perforated plates or grid plates; a water purification treatment system is arranged at the bottom of the box and comprises at least three overflow purification areas; a guide plate (6) is arranged below the bottommost culture chamber and introduces water flow into the first overflow purification area, and a biological filter material is arranged in the first overflow purification area; and a cooler (7) is further arranged in one overflow purification area, a water pump (1) is further arranged in the last overflow purification area and communicated with a water pipe (2), the water pipe (2) is then communicated with branched water pipes (4), and the branched water pipes (4) extend above the culture chambers respectively and spray water mist on the culture chambers through a plurality of spray headers (5) on the branched water pipes (4).

The invention provides a water treatment system for aquaculture. The system comprises a floating platform, an aquaculture water tank, a circulating water pump, a filtering and separating device, fans,a water tank bottom purging system and a biochemical filtering pool, wherein the biochemical filtering pool is connected with the filtering and separating device through a pipeline; the aquaculture water tank is embedded in the floating platform; the circulating water pump comprises a deepwater submersible pump and a surface water submersible pump; the filtering and separating device comprises amicrofiltration machine and a protein separator, the microfiltration machine is connected with the deepwater submersible pump through a pipeline, the protein separator is connected with the surface water submersible pump through a pipeline, and the fans are connected with the water tank bottom purging system in the aquaculture water tank, the protein separator and the biochemical filtering pool through pipelines respectively. According to the water treatment system for aquaculture, aquaculture water and pond water are separated, the aquaculture system is subjected to life support treatment with circulating water, the aquaculture water is purified and flows into a pond for secondary purification, then the water is circulated in the aquaculture water tank, so that water resource is recycled,the purification effect is ideal, and dynamic balance of water is realized.

The invention discloses a detection reagent kit of aeromonas bacteria, which comprises a primer pair 1 with a sequence shown as SEQ ID No. (sequence identification number) 1-2, which is used for amplifying genes from the aeromonas bacteria. The invention further discloses a detection method of the aeromonas bacteria. With the adoption of the detection reagent kit and the detection method, the aeromonas bacteria can be detected accurately and effectively; the specificity is good; the sensitivity is high; consumed time is short; the detection is quick; the reagent kit and the detection method can be applied to quick detection and forecast of a culture water body; fish diseases are prevented; and the economic benefit is improved.

The invention provides a feed additive production method, especially a salmon feed additive production method, and relates to a feed additive production method, particularly to a salmon feed additive production method. The production method comprises: weighing silkworm pupa powder and fish meal, adding a corn meal saccharification liquid, uniformly mixing, sterilizing, cooling to a temperature of 28 DEG C, inoculating Rhodotorula glutinis liquid seed, placing into a constant temperature oven to culture for 72 h, and carrying out drying, crushing and granulation to obtain the finished product. The salmon feed additive contains a large amount of astaxanthin produced during a Rhodotorula glutinis fermentation process, such that the salmon can uptake the salmon feed additive to obtain the astaxanthin so as to achieve meat color increase, salmon immunity can be improved, and fish disease occurrence can be prevented. During feeding of the salmon, the salmon feed additive is added to a salmon complete formula feed according to a ratio of 10%, and uniform mixing is performed to obtain the finished product.

The invention discloses carp feed and a preparation method thereof. The carp feed comprises, by weight, 20-30% of fish meal, 30-40% of soybean meal, 10-20% of corn meal, 10-20% of bran, 10-20% of mineral substances, 1-5% of multi-vitamin mineral salt, 1-5% of growth promoting agent and 1-5% of antibacterial agent. The preparation method includes preparing the traditional Chinese medicine antibacterial agent, mixing and granulating. The growth promoting agent and the antibacterial agent are added in the feed, the granulated feed prepared via granulation, curing and drying facilitates feeding, nutritive value of farmed carps can be ensured effectively, production speed of the carps is increased, fish diseases can be prevented effective, and survival rate of the carps is high.

The invention discloses a mandarin fish feed and a preparation method thereof. The mandarin fish feed is prepared from the following components in percentage by weight: 50-70% of white fish surimi, 10-20% of bean powder, 2-5 parts of yeast powder, 1-5% of multivitamin mineral salt, 1-5% of a growth promoter and 1-5% of antibiotics. The preparation method of the mandarin fish feed comprises the steps of crushing, mixing, stirring and pelletizing. The multi-vitamin mineral salt, the growth promoter and the antibiotics are added to the feed; the granulated feed obtained by pelletizing, curing and drying is convenient in feeding, is capable of effectively ensuring the nutritive value of raised mandarin fishes, improving the production speed of the mandarin fishes and effectively preventing fish diseases, and has advantages of high survival rate of the mandarin fishes.

The present invention discloses a special feed for osteoglossum bicirrhosum and a preparation method and an application thereof. A variety of raw materials are used to prepare the special feed for the osteoglossum bicirrhosum. Freeze-dried shrimp powder is processed by using a special freeze-drying technology. The preparation method maximally preserves the nutrition and flavor of the natural shrimp powder and the shrimp powder is purely natural food attracting ingredients for carnivorous ornamental fish. As a key accessory ingredient, the freeze-dried shrimp powder is added according to a specific ratio, has functions of regulating appetite and attracting food, is good in rehydration effects and promotes the digestion of the osteoglossum bicirrhosum. Compared with commonly used chemical attractants in the feed market, the natural freeze-dried shrimp powder is safe and hygienic, and free of any side effects. The application of the technology is an industry innovation.

The invention discloses a culture method for sturgeon in flowing water. A formula for an artificial feed comprises the following components in percentages: 45% of fish meal, 15% of feed yeast, 15% ofbean cakes, 5% of maize meal, 5% of dry milk, 3% of mixed salt, 2% of amino acid, 2% of an adhesive and 5% of an attractant. According to the invention, a correct sturgeon culturing method creates a good living environment for the sturgeon, and the quality of water is guaranteed; bait and sturgeon feces in the interior of a pool are timely cleaned; and a scientific formula of the artificial feed provides good feeding bait for the growth of the sturgeon. Diseases and pests are prevented, and different measures are taken for different diseases during occurrence of diseases and insect pests, wherein (1) enteritis disease is treated mainly through antibiotics, (2) saprolegniasis is treated through an immersion bath of a table salt solution with a concentration of 0.05% for 20 min, and (3) ichthyophthiriasis is treated through soaking in a formaldehyde solution with a concentration of 0.05% for 30 to 60 min. Good survival of the sturgeon is guaranteed, and healthy culturing of the sturgeonis promoted. An EM bacterial liquid is used, so the quality of the water can be remained to be clarified; the quality of the water is prevented from aging; the growth of plankton is promoted; and diseases of the sturgeon are prevented from occurrence.

The invention discloses an artificial breeding method for spring water fishes. The method comprises the following steps: (1) screening mature and active spring water fishes, and putting into a fish pond; (2) launching fish fries, namely launching fish fries in November every year, cleaning and sterilizing the fish pond, putting spring water into the fish pond, launching the fish fries at an appropriate temperature, feeding water from one end of the fish pond, discharging water from the other end of the fish pond to construct a living water environment, and breeding the fish fries for more thanone year to obtain adult fishes; (3) managing adult fishes, namely when 60% of the spring water fish fires grow into adult fishes of 20g, putting a traditional Chinese medicine granule feed which accounts for 3-5% of the mass of a feed into the feed used every day, and fishing up the spring water fishes which are 1500-3000g on average, and delivering to the market. Due to adoption of mature and efficient spring water fish parental breeding and artificial production acceleration techniques, zygotes are increased, the hatchability can be improved, and the survival rate of offspring seeds can beincreased.

The invention discloses a production method of a pseudosciaena crocea feed additive, relating to a production method of a feed additive. The production method includes the steps of preparing a rhodotorula rubra culture solution firstly, homogenizing the rhodotorula rubra culture solution, adding 35% of maltodextrin, stirring for dissolving, spray-drying to produce solid powder, mixing the solid powder, dried shrimp meal and marigold powder in the ratio of 1:2:3 uniformly, and pelleting to obtain the finished product. The body color of pseudosciaena crocea can be increased after the pseudosciaena crocea takes in the feed additive, the commodity value of the pseudosciaena crocea is increased, the organism immunity of the pseudosciaena crocea also can be improved and the fish disease can be prevented.

The invention discloses snakehead feed and a preparation method of the snakehead feed. The snakehead feed is characterized in that raw materials comprise trash fish and shrimp, bean flour, corn flour, wheat bran, multivitamin mineral salt, vitamin, antibiotics and Chinese medicinal herb juice; the snakehead feed is prepared from the raw materials in parts by weight: 30 to 70 parts of the trash fish and shrimp, 20 to 45 parts of the bean flour, 15 to 67 parts of the corn flour, 5 to 35 parts of the wheat bran, 10 to 30 parts of the multivitamin mineral salt, 26 to 38 parts of the vitamin, 24 to 46 part of the antibiotics and 20 to 34 parts of the Chinese medicinal herb juice. By adopting the snakehead feed provided by the invention, nutrient value of snakehead fed by the snakehead feed is effectively ensured and the production speed of the snakehead is improved; fish diseases can be effectively prevented and the survival rate of the snakehead is high.

A killing apparatus (11) for controlling algal blooms and killing pathogens in a fish tank includes a first conductive mesh (30), a second conductive mesh (50), and a spacer (40) which is disposed between the first conductive mesh (30) and the second conductive mesh (50) and insulates the first conductive mesh and the second conductive mesh. Accordingly, in the fish tank, algal blooms are prevented and reduced, fish disease is prevented, and the growth of water plants is expedited.

The invention discloses snakehead feed and a preparation method thereof. The snakehead feed comprises, by weight, 50-70% of trash fish and minced shrimp, 10-20% of bean flour, 2-5% of yeast powder, 1-5% of multi-vitamin mineral salt, 1-5% of growth promoting agent and 1-5% of antibiotics. The preparation method includes crushing, mixing and granulation. By the granulated feed which is prepared by being added with the multi-vitamin mineral salt, the growth promoting agent and the antibiotics and by means of granulation, curing and drying, feeding is facilitated, nutritive value of farmed snakehead can be ensured effectively, production speed of the snakehead is increased, fish diseases can be prevented effective, and survival rate of the snakehead is high.

The invention discloses a method for processing a high-efficiency fish feed. The method comprises the following steps: 1) adding raw materials to a pulverizer for pulverization; 2) putting the straw mixture pulverized in 1) into a fermentation tank, adding 80% of water, 1% of glucoamylase, 1% of complex enzyme, 0.5% of live yeast, 1% of sodium chloride and 0.5% of lactic acid on the basis of the weight of the straw mixture, and stirring thoroughly; and 3) adding 3% of photosynthetic bacteria to the mixture of 2), culturing at a temperature of 15 to 35 DEG C for 2 days, obtaining the high-efficiency fish feed when white hyphae are grown on the material bed and an aroma is emitted, then drying the fish feed, and preparing the fish feed into granules. The fish feed contains rich amino acids and trace elements; the straw is used as a raw material, which can reduce the cost; any additive is not added, so that the fish is delicious; and the pulverizer can pulverize the raw materials many times to achieve a good pulverization effect, and can screen the mixture at the same time.

The invention discloses a bighead carp feed. The bighead carp feed is prepared from the following raw materials in parts by mass: 50-60 parts of corn flour, 15-20 parts of cooked rice, 15-20 parts ofbean dregs, 10-15 parts of rice bran, 3-5 parts of fish meal, 5-10 parts of oenanthe javanica, 1-3 parts of purple perilla, 1-3 parts of Chinese pulsatilla roots, 0.1-0.2 part of multiple vitamins, 0.3-0.5 part of multiple minerals and 0.1-0.3 part of table salt. The feed disclosed by the invention is rich in nutrition, good in palatability and low in cost, contains common traditional Chinese medicine components and can effectively prevent bighead carps from suffering from diseases.

The present invention relates to a growth promoting and disease preventing compound feed for aristichthys nobilis. The feed comprises the following raw materials in parts by mass: 12-15 parts of corn, 16-20 parts of flour, 16-20 parts of shrimp powder, 16-20 parts of rapeseed meal, 8-11 parts of fishmeal, 1-3 parts of wall broken yeast powder, 1-2 parts of radix astragali powder, 1-3 parts of spirulina platensis powder, 0.5-1 part of edible salt, 3-5 parts of carrot powder, 2-5 parts of water flea powder, 1-3 parts of fish oil, 2-5 parts of liquorice powder, 0.5-1 part of vitamin C, 2-4 parts of haw kernel powder, and an appropriate amount of water. According to the growth habits and physiological characteristics of the aristichthys nobilis, the feed targetedly provides the nutrients suitable for the growth of the aristichthys nobilis, promotes development, increases appetite, achieves rapid growth of the aristichthys nobilis, improves disease resistance of the aristichthys nobilis, prevents diseases of the aristichthys nobilis, and reduces the incidence of the diseases.

The invention discloses special feed for crab breeding and a preparation method thereof. The special feed for crab breeding is prepared from the following raw materials in parts by weight: 10-20 partsof fish liver oil, 8-10 parts of citric acid, 4-12 parts of bee glue, 4-16 parts of glucose, 2-4 parts of vegetable oil, 4-6 parts of songaria cynomorium herb, 4-10 parts of bamboo worms, 8-10 partsof shrimp meat, 6-8 parts of licorice roots, 50-58 parts of tiny fish, 2-6 parts of perilla leaves, 10-12 parts of barley grass, 8-10 parts of cane shoots, 1-3 parts of compound amino acid, 4-6 partsof scallop muscle, 8-16 parts of honeysuckle flowers and 2-18 parts of beer yeast. The special feed for crab breeding is prepared by the following steps: powder preparing, mixing, granulating, curingand drying. The special feed for crab breeding contains rich nutritional components, provides sufficient nutrients for crabs, has an effect of improving meat quality, increases the development rate ofthe crabs and shortens the growth cycle of the crabs; and meanwhile, the special feed for crab breeding is prepared by a granulating mode, is convenient to feed, can effectively ensure the nutritional value of the fed crabs, effectively prevents fish diseases and has the advantage of high survival rate of crabs.

The invention discloses pseudorasbora parva fodder. The pseudorasbora parva fodder is characterized by comprising, by weight, 5%-10% of fish meal, 15%-18% of soybean cake powder, 4%-7% of shrimp shell powder, 8%-13% of wheat shorts, 10%-15% of rice bran powder, 5%-8% of bran powder, 6%-15% of rapeseed dreg powder, 8%-10% of earthworm powder, 8%-12% of corn flour, 5%-8% of barley flour, 3%-5% of spirulina powder, 5%-8% of yeast powder, 0.3%-0.6% of decavitamin and 0.5%-1% of composite mineral salt. The pseudorasbora parva fodder has various nutritional ingredients, and compared with the mode that fodder such as bran and rice bran is fed independently, the nutritional ingredients of the pseudorasbora parva fodder are more comprehensive. The fodder can be stored and used conveniently, and the fodder further has the effect of protecting and treating fish diseases through high temperature sterilization. The fodder is good in palatability, easy to digest and high in absorption speed. Pseudorasbora parva is high in growth speed, high in disease resistance and high in breeding survival rate. Prey fishes which are sufficient in number and excellent in quality can be provided for breeding high-quality fishes such as mandarin fishes.

The invention relates to an oriental weatherfish compound feed for promoting growth and preventing diseases. The oriental weatherfish compound feed comprises the following raw materials in parts by mass: 23-25 parts of corn flour, 8-12 parts of margarya melanioides meat powder, 10-13 parts of fish meal, 18-22 parts of rice bran, 10-13 parts of flour, 1-2 parts of shrimp powder, 1-3 parts of wall-breaking yeast powder, 1-2 parts of radix astragali powder, 1-3 parts of spirulina powder, 0.5-1 part of table salt, 3-5 parts of zeolite powder, 2-4 parts of earthworm powder, 0.5-1 part of vegetable oil, 2-4 parts of licorice powder, 0.5-1 part of vitamin C, 0.5-1 part of garlic dry powder, 2-4 parts of haw seed powder, and an appropriate amount of water. The feed disclosed by the invention provides nutrients required by growth of oriental weatherfish in a targeted manner according to the growth habit and the physiological characteristics of the oriental weatherfish, promotes the development of the oriental weatherfish, stimulates the appetite of the oriental weatherfish, realizes rapid growth of the oriental weatherfish, improves the disease resistance of the oriental weatherfish, prevents fish diseases, and reduces morbidity.

The invention discloses a breeding method special for crabs. The crabs are bred through the steps of pond selection, aquatic organism cultivation, juvenile crab selection, feeding and water quality control; by adding compound amino acid, the appetite and absorption function of the crabs are stimulated, the physique of the crabs is improved, and therefore the survival rate of the crabs is ensured;the nutrients are rich, sufficient nutrients are provided for the crabs, the function of improving the meat quality is achieved, the development speed of the crabs is increased, and the growth cycle of the crabs is shortened; meanwhile, the method adopts a granulation mode, feeding is convenient, the nutritional value of the bred crabs can be effectively ensured, fish diseases are effectively prevented, and the method has the advantage that the survival rate of the crabs is high.

The invention relates to a carp compound feed capable of promoting growth and preventing diseases. The carp compound feed is prepared from the following raw materials in parts by weight: 23-25 parts of corn flour, 7-10 parts of fish meal, 10-12 parts of rapeseed powder, 20-22 parts of rice bran, 8-12 parts of bean pulp, 3-5 parts of shrimp shell powder, 1-3 parts of wall-broken yeast powder, 1-2 parts of radix astragali powder, 1-3 parts of spirulina powder, 0.5-1 part of table salt, 3-5 parts of zeolite powder, 2-4 parts of earthworm powder, 0.5-1 part of vegetable oil, 2-4 parts of licorice powder, 0.5-1 part of vitamin C, 0.5-1 part of dried garlic powder, 2-4 parts of Chinese hawthorn seed and a proper amount of water. Nutrients suitable for the growth of the carp are provided in a targeted manner according to the growth habit and physiological features of the carp, so that the development of the carp is promoted, the appetite of the carp is improved, the rapid growth of the carp is realized, the disease resistance of the carp is improved, the fish diseases are prevented, and the disease risk is reduced.

The invention provides rice-fish integrated fish feed and a preparation method thereof. Rice hull powder, eel powder, nostoc flagelliforme, monocalcium phosphate, aloe powder, euryodendron excelsum, carvacrol, garcinia multiflora oil, herbs of elegant tickclover, multivitamins, glutathione and mica powder are selected as feed raw materials through scientific proportioning according to the ingestion characteristics of fish and food sources in a rice field. Nutritional ingredients required by growth and development of fishes are supplemented, the immunity of the fishes is enhanced, and the morbidity is reduced. The euryodendron excelsum, the garcinia multiflora oil and the herbs of elegant tickclover are matched for use, so that the immunity of the fishes can be enhanced, the euryodendron excelsum, the garcinia multiflora oil and the herbs of elegant tickclover are matched for use with the rice hull powder, the eel powder, the nostoc flagelliforme, the monocalcium phosphate, the multivitamins and the glutathione, the nutritional requirements of the fishes can be met, the fish meat quality is improved, and by adding the mica powder and the aloe powder prepared by the method, the stability of the pellet feed in water is improved, and fish diseases caused by water pollution caused by the pellet feed are prevented. Compared with the traditional expanded feed, the fish feed disclosed by the method can fully retain vitamin components in the raw materials.

The invention relates to a dace compound feed capable of promoting growth and preventing diseases. The dace compound feed comprises the following raw materials in parts by weight: 23-25 parts of peanut bran, 8-12 parts of shrimp meal, 12-15 parts of fish meal, 20-24 parts of rice bran, 6-9 parts of tapioca flour, 1-2 parts of seaweed meal, 1-3 parts of wall-broken yeast powder, 1-2 parts of radix astragali powder, 1-3 parts of spirulina powder, 0.5-1 part of table salt, 3-5 parts of zeolite powder, 2-4 parts of earthworm powder, 0.5-1 part of vegetable oil, 2-4 parts of liquorice powder, 0.5-1 part of vitamin C, 0.5-1 part of dried garlic powder, 2-4 parts of haw kernel powder and a proper amount of water. According to the dace compound feed, nutrients required by the growth of daces can be provided in a targeted manner according to the growth habits and physiological features of the daces, the growth and the appetite of the daces can be promoted, the rapid growth of the daces can be realized, the disease resistances of the daces can be improved, fish diseases can be prevented, and the morbidity is decreased.

The invention discloses soft-shelled turtle feed and a preparation method thereof. The soft-shelled turtle feed comprises, by weight, 50-60 parts of little fish, 40-50 parts of corn, 20-40 parts of carrot juice, 1-5 parts of mineral trace elements and 1-5 parts of antibiotics. The preparation method includes crushing, mixing and granulating. The mineral trace elements and the antibiotics are added in the feed, the granulated feed prepared via granulation, curing and drying facilitates feeding, nutritive value of farmed soft-shelled turtles can be ensured effectively, production speed of the soft-shelled turtles is increased, soft-shelled turtle diseases can be prevented effective, and survival rate of the soft-shelled turtles is high.

The invention discloses mandarin fish feed. The feed is prepared from the following raw materials in parts by mass: 50-60 parts of rice brans, 15-20 parts of bean dregs, 10-15 parts of corn flour, 5-10 parts of fish meal, 5-10 parts of worm powder, 5-10 parts of dried pig offal powder, 1-3 parts of herba houttuyniae, 1-3 parts of perilla frutescens, 1-3 parts of roots of Chinese pulsatilla, 0.1-0.2 part of multi-vitamins, 0.3-0.5 part of multi-minerals and 0.1-0.3 part of edible salt. The feed has rich nutrition, good palatability and low feed cost, contains common traditional Chinese medicinal ingredients, and can be used for effectively preventing occurrence of fish diseases.

The invention relates to a growth-promoting and disease-preventing compound feed for crucian carps The growth-promoting and disease-preventing compound feed for the crucian carps comprises the following raw materials in parts by mass: 12-15 parts of wheat starch, 26-30 parts of flour, 15-20 parts of shrimp meal, 10-12 parts of mung bean powder, 7-10 parts of meat and bone meal, 1-3 parts of wall-broken yeast powder, 1-2 parts of radix astragali powder,1-3 parts of spirulina powder, 1-2 parts of edible salt, 3-5 parts of carrot powder, 2-5 parts of water flea meal, 1-3 parts of fish oil, 2-5 parts of liquorice root powder, 1-2 parts of vitamin C, and an appropriate amount of water. The compound feed disclosed by the invention provides nutrients suitable for growth demands of the crucian carps in a targeted way according to the growth habits and the physiological characteristics of the crucian carps, so that the compound feed is capable of promoting development of the crucian carps. The compound feed is capable of increasing appetite of the crucian carps so as to realize rapid growth of the crucian carps. Moreover, the compound feed is also capable of improving disease resistance of the crucian carps so as to prevent fish diseases and reduce disease incidence rates.

The invention discloses turtle feed. The turtle feed is prepared from the following raw materials in parts by mass: 20-30 parts of puffed bean meal, 10-20 parts of sugar beet pulp, 5-8 parts of corn protein powder, 20-30 parts of dry powder of animal viscera, 5-10 parts of fishmeal, 3-5 parts of rape oil, 0.5-1 part of mannitol, 0.2-0.3 part of vitamins, 0.1-0.3 part of amino acid, 0.2-0.5 part ofbiological enzyme, 1-1.5 parts of EM bacteria, 1-2 parts of wild chrysanthemum flowers, 1-2 parts of honeysuckle flowers, 1-2 parts of garlic powder, 1-2 parts of pine needle meal and 1-2 parts of chili powder. The feed disclosed by the invention contains rich nutrients, has good palatability and low feed cost, contains common traditional Chinese medicine components and can effectively prevent occurrence of turtle diseases.

The present invention discloses a feed for breams. The feed is prepared from the following raw materials in parts by mass: 20-40 parts of fishmeal, 20-25 parts of soybean meal, 15-20 parts of rapeseedmeal, 10-20 parts of coarse bran, 10-15 parts of fruit and vegetable powder, 3-5 parts of vegetable oil, 1-3 parts of perilla frutescens, 1-3 parts of Chinese pulsatilla roots, 0.1-0.2 part of multi-vitamin, 0.3-0.5 part of multi-mineral, 0.1-0.3 part of edible salt and 1-2 parts of compound premixes. The feed is rich in nutrients, good in palatability and low in feed costs, contains the common traditional Chinese medicinal ingredients, and can effectively prevent occurrence of fish diseases.