493results about How to "Reduce feed factor" patented technology

The invention relates to a bio-protein feed prepared by adopting a cellulose raw material, and the bio-protein feed provided by the invention comprises an organic material and complex bacteria, wherein the weight of the complex bacteria is 1-10% of that of the organic material; and the organic material comprises the cellulose raw material, rapeseed meal and bran; the cellulose raw material is one or more of corn stalks, corn cobs, straw, manioc waste and fruit residue; and the complex bacteria comprises bacillus subtilis, microzyme, lactobacillus and cellulose decomposition bacteria, and the cellulose decomposition bacteria is one or more of trichoderma harzianum and white-rot fungi. In the bio-protein feed, the content of probiotics is more than 108cfu / g, the bio-protein feed contains a variety of prolease, cellulase, amylase and the like, the preparation process is simple, and the fermentation period is short. The invention further discloses a preparation method of the feed.

The invention relates to aquaculture feed, in particular to litopenaeus vannamei compound feed special for winter shed cultivation and a preparation method of the feed. The feed comprises a protein source raw material, a fat source raw material, a sugar source raw material, an antioxidant, a phagostimulant, composite vitamin and composite mineral salt. The invention provides the litopenaeus vannamei compound feed special for winter shed cultivation and the preparation method of the feed, with the advantages of high survival rate, high growth speed, high stability in water, high ingestion speed, convenience for use and low environmental pollution, so as to solve the problems of low growth speed, serious disease, low survival rate and the like of the litopenaeus vannamei during winter shed cultivation at low temperature and promote the healthy development of the litopenaeus vannamei cultivation industry.

The invention discloses an environment friendly river crab feed, which consists of fish meal, blood meal (AP301), cuttlefish cream, soybean meal, peanut cake, rapeseed meal, cottonseed meal, wheat, strong flour, granulesten, defatted rice bran, corn gluten feed (DDGS), malt root, fish oil, vegetable oil, phytase, calcium biphosphate and special phagostimulant for the river crab. The utilization rate of the feed for the river crab can be improved by adopting the environment friendly river crab feed of the invention, thereby promoting the benefit of breeding, reducing the loss of nitrogen and phosphorus in the feed and improving the water quality of the breeding.

The invention provides a grouper environmentally-friendly soft granulated feed and a preparation method thereof. The grouper environmentally-friendly soft granulated feed comprises the following nutritional components in percentage by weight: 40 to 50 percent of crude protein, 6 to 12 percent of crude fat, 8 to 15 percent of crude ash, 22 to 28 percent of carbohydrate, and 6 to 10 percent of moisture. According to the invention, the high-quality grouper environmentally-friendly soft granulated feed is studied, popularized and applied, so that the nutrition of the launched feed goes to be complete and balanced, and the palatability of the feed is good, not only can the feed digestive absorption rate of grouper be improved, but also the survival rate and growing speed of the grouper are improved, and the fish quality is improved. Therefore, non-polluted fish products are produced, and the cultivation economical benefit is improved; and the feed has active and profound significance in reducing the usage of small trash fish, lightening the sea area pollution, protecting the marine eco-environment, and promoting the sustained stable and health development of the marine fish culture industry.

The invention discloses an efficient environmental-friendly black carp extrusion compound feed and a production method thereof. The method is characterized by comprising the following steps: mixing large amounts of other raw materials such as fish meal, extruded-soybean, soybean meal, rapeseed meal, cottonseed meal, wheat and rice bran and then coarsely crushing a mixture; adding spray-dried animal blood cells, larvae powder, monocalcium phosphate, choline chloride and salt for evenly mixing, carrying out superfine crushing; adding vitamin premis, mineral premix, rheum emodin, L-carnitine and allicin for evenly mixing; and carrying out steam tempering, extrusion, granulation, drying, spraying, cooling and the like on the mixed materials to obtain the product. The black carp extrusion compound feed is simple to prepare and has comprehensive and balanced nutrition, the digestibility of the black carp on feed nutrient substances can be improved, the feed coefficient is reduced, and the nitrogen and phosphorus emission is lowered. The feed has good palatability, excellent stability in water, and less feed wastes and water pollution. The feed can increase the immunity, antioxidation and anti-stress capabilities of the black carp, and promotes the growth of the black carp.

The invention discloses health-care fodder for freshwater fish. The health-care fodder is mainly prepared by raw materials in percentage by weight as follows: 14%-35% of soybean meal, 1%-5% of fish meal, 15%-45% of miscellaneous meal, 5%-10% of corn distiller dried grains with solubles, 20%-35% of wheat meal, 2%-5% of fish oil and 1.0%-1.4% of a health-care additive, wherein the health-care additive is a mixture of vitamin, mineral, immunity polyhexose, probiotics and a complex enzyme preparation agent. According to nutritional requirements of freshwater fish, plant protein is taken as a main protein source, and the biological value of fodder protein is increased by adjusting balance of amino acid; and simultaneously, the immunity polyhexose, the probiotics, the complex enzyme preparation agent and the like are added, so that the utilization rate of the fodder is increased, antinutritional factors are passivated, enteric microflorae of the freshwater fish are adjusted, the immunity of the freshwater fish is enhanced, contents of hazardous substances in excrement are reduced, water pollution caused by the excrement and undigested fodder in the excrement is reduced, the freshwater fish can healthily grow, and economic benefits for culturing the freshwater fish are increased.

The invention relates to a type of feed, in particular to a type of compound feed of tilapia. The compound feed of tilapia comprises the following raw materials according to mass percent: 3-8% of fish meal, 20-30% of bean pulp, 5-10% of peanut pulp, 10-15% of corn, 8-12% of cottonseed pulp, 15-20% of rape seed pulp, 12-18% of strong flour, 1-2% of monocalcium phosphate, 1-2% of composite mineral substance, 1-2% of composite vitamins and 1-2% of soybean oil. The feed of tilapia in the invention has the advantages of comprehensive nutrition, promoting growth, strengthening immunity, resisting stress, protecting the intestinal canal of the fish body, preventing occurrence of diseases and the like.

Disclosed is a feed stuff for red crayfish which comprises the constituents of (by weight percent) fish flour 8-12%, soybean waste 42-52%, black fish flour 2-4%, vegetable meal 2-4%, soybean waste 2-4%, fish oil 2-3%, soybean oil 2-3%, soya bean lecithin 1-2%, alpha-starch 3-4%, calcium hydrogen phosphate 2-3%, cholesterin 0.25-0.75%, choline chloride 0.5-1.5%, and balancing composite vitamins, complex minerals and probiotics.

The invention discloses river crab feed, which comprises fish meal, vegetable dregs, corn, soya bean meal, inferior meal, soya-bean oil, shrimps, cuttlefish ointment, monocalcium phosphate, mineral substances for crabs, vitamin for the crabs, a binder, 0.7 to 14.0 mg / kg of cordycepin, 131.0 to 2,620.0 mg / kg of cordycepic acid, 0.1 to 2.0 mg / kg of adenosine and 290.0 to 5,800.0 IU / kg of superoxide dismutase. The river crab feed has the high utilization rate, reduces the pollution of feed residues to environment, avoids the negative effects of antibiotic residues and tolerance caused by the antibiotic residues, is safe and harmless to the craps and the environments and can enhance the immunity of the crabs and accelerate the growth of the crabs. The invention also provides a production process of the river crab feed, which has the characteristics of low cost and simple and convenient operation.

The invention discloses a penaeus monodon larva stage microparticle feed comprising protein source raw materials, fat source raw materials, sugar source raw materials, antioxidants, phagostimulant, multi vitamins and complex mineral salts. The feed can improve survival rate of penaeus monodon at a larva stage, enables the larvae to be produced fast and stable under water, and rapid in ingestion, has the advantages of being convenient to use and low in the pollution of the environment and the like, and solves the problems that current organism baits are unstable in quality and quantity, prawn slices on the market are unbalanced in nutrition, water contamination is too serious to control at a larva breeding stage and the like; accordingly, healthy development of penaeus monodon larva production and breeding is promoted, and the feed is of great significance.

A feed for Japanese sea perch is proportionally prepared from fish powder, soybean dregs, black snakehead fish powder, corn protein powder, cotton seed dregs, flour No.4, fish fat, soybean oil, soybean phosphatide, calcium dihydrogen phosphate and additive containing vitamins, minerals, etc. It has high nutritive value.

The invention discloses a formula feed of broilers and a preparation method thereof. The formula is as follows: 50-65% of corn, 0-2% of fishmeal, 20-25% of soya bean meal, 0-3% of corn protein powder, 0-1% of whole hen egg, 0-5% of wheat middling, 0-5% of rice pericarps, 0-5% of rice bran, 0-3% of cottonseed meal, 0.5-1.5% of bean oil, 0.1-0.3% of acidulant, 0.05-0.1% of sodium butyrate, 0.03-0.05% of compound enzyme preparation and 1.5-2% of compound premix. The feed is prepared by the steps of removing impurities from raw materials, grinding raw materials, weighing raw materials, mixing raw materials, palletizing and packing finished products, etc. in sequence. The invention selects the additives which promote the broilers to grow and develop and the feed materials which improve the immunocompetence, etc. The feed product has moderate metabolic energy value, high nutrition level and good palatability, is easy to digest and absorb and is easy to satisfy the nutritional requirements of 1-7 days of growth, therefore, the broilers grow fast and have high disease resistance, low mortality and low feed coefficient, and the coefficient of the formula feed is 0.8-0.9.

The invention discloses sinking extruded granular feed of penaeus uannamei. The density of the sinking extruded granular feed is more than 1.03, and the curing degree is 100 percent. Brown fishmeal, squid liver paste, shrimp shell meal, flour, not-genetically-modified soybean meal, canola meal, peanut meal, cassava block, mineral gunk, vitamin gunk, calcium dihydrogen phosphate, fish oil, calcium propionate, phospholipids oil and DDGS are adopted as raw materials, the feed base stock which is proportioned by weight part is regulated for 160 to 200 seconds by a double-shaft extruding full-curing bulking machine under the conditions that the steam pressure is 0.4 to 0.5MPa, the moisture is 19 to 23 percent and the temperature is 85 to 90 DEG C, and then is cured at a curing temperature of 135 DEG C, the cavity pressure of 3MPa and the curing time of 90 to 120 seconds. The sinking extruded granular feed has fewer animal raw materials and has low feed coefficient which is less than or equal to 1.1. All anti-nutrient factors in the feed are completely destroyed, the stability in the water is more than 12 hours, and the feed is completely cured.

The invention discloses a pond poly-culture method for tilapia mossambica and litopenaeus vannamei. The pond poly-culture method comprises the following steps of: adding quick lime into a dry pond in spring every year, injecting water to carry out water sterilization, adding 50 kg-100 kg of fermented chicken manure into each mu of the pond when the water temperature is stabilized to over 20 DEG C, injecting water until water depth is 40cm-60cm, waiting for 1-2 weeks, adding 8000-12000 litopenaeus vannamei shrimp seeds into each mu of the pond, and feeding special poly-culture feed; injecting water after 15-20 days until water depth is 100cm-120cm, adding 1500-2500 tilapia mossambica fries into each mu of the pond, feeding the poly-culture feed, injecting water after 15-20 days until water depth is 200cm-250cm, oxygenating for 3-7 hours every day, and mixing 20kg-30kg of the quick lime with water to spray for each mu of the pond once to twice every month; catching the tilapia mossambica and litopenaeus vannamei after 120-150 days. According to the pond poly-culture method disclosed by the invention, the special poly-culture feed is fed, prawn quality is high, water pollution is less, management is easy, cost is low and benefits are high.

The invention relates to Australia crayfish breeding expanded sunken cooperation fodder and a production process thereof and belongs to the technical field of shrimp expanded fodder. The fodder comprises 10-18 parts of fish meal, 5-10 parts of dried-powder of housefly larvae, 10-16 parts of shrimp meal, 4-8 parts of fermented soybean meal, 14-16 parts of soybean meal, 5-15 parts of peanut meal, 12-14 parts of strong flour, 2-4 parts of yeast autolysis powder, 2-5 parts of squid liver, 2-3 parts of shrimp shell meal, 2-5 parts of dried earthworm powder, 1-2 parts of fish oil, 2-3 parts of phosphatide oil, 1.5-2 parts of monocalcium phosphate, 1.66-2.63 parts of bentonite, 0.1-0.2 part of choline chloride, 0.04-0.08 part of calcium bisbutyrate, 0.1-0.2 part of unshell agents, 0.05-0.1 part of astaxanthin, 0.06-0.1 part of synbiotics, 0.2-0.3 part of compound vitamin premix and 0.3-0.5 part of compound trace element premix. By means of the fodder, the intestinal health of Australia crayfish can be substantially improved, the disease resistant capacity of the Australia crayfish is enhanced, the fodder digestion rate is improved, the growth performance is improved, and great social value and economic value are created.

The invention discloses a method for treating aquaculture wastewater. The method comprises the following steps of: performing modular processing on wastewater by using microalgae and beneficial bacteria; and throwing snails, filter-feeding fishes and other aquatic animals into a water body to realize self-purification of an aquaculture water environment after the modular processing. Dominant and beneficial microalgae such as diatom, green algae and the like capable of absorbing nitrogen and phosphor in the aquaculture water body are screened out, inoculated, rapidly cultured and put into the aquaculture water body; the water color is regulated and the alga concentration is controlled by the methods of rational fertilization and rotifer inoculation; the beneficial bacteria are bacillus and photosynthetic bacteria capable of degrading organic matters and ammonia nitrogen in the water body; the beneficial bacteria and feed are proportionally mixed before the feed is put into the water body; after the feed is put into the water body, an underwater biomembrane taking the feed as a matrix is formed; the nitrogen, the phosphor and other harmful pollutants in the aquaculture water body can be effectively removed by jointly using the microalgae and the beneficial bacteria; simultaneously, the utilization efficiency of the feed can be improved by mixing the beneficial bacteria and the feed; and the water body is processed by using the microalgae and the beneficial bacteria, and then the snails and the filter-feeding fishes are put into the water body to prevent excessive multiplication of phycomycete, so that the self-purification of the aquaculture water environment can be realized.

The invention discloses a high-sugar and low-protein tilapia feed. Based on the total mass fraction of 100%, it consists of the following components: fish meal: 0-3%, soybean meal: 16-20%, rapeseed meal: 18-21%, cotton meal: 12-16%, secondary meal: 39- 42%, soybean oil: 2-3%, choline chloride: 0.2-0.5%, sodium chloride: 0.1-0.5%, calcium dihydrogen phosphate: 1-2%, vitamin B1: 0.004-0.006%, vitamin B6: 0.002-0.004%, zinc sulfate: 0.02-0.04%, chromium chloride: 0.0001-0.0003%, vitamin premix: 0.1-0.2% and mineral premix: 0.5-1%. The invention maximizes the amount of secondary powder in the feed, adds several plant protein sources to overcome the problem of amino acid imbalance of a single protein source, and at the same time significantly reduces the amount of fish meal. By optimizing and adjusting the feed formula, supplementing suitable vitamin and mineral premixes to adjust the sugar utilization ability of tilapia, so that the tilapia can make good use of the sugar compound of the present invention, avoiding the damage of fish liver caused by high sugar, Fatty liver is formed, and even the fish body becomes obese, and the symptoms of "big belly" appear.

The invention discloses a grass carp compound feed which comprises the following nutrient components by mass percentage: 22-32 crude protein, 3-6 crude fat, 21-28 nitrogen free extract, 15-22 starch, 7-10 ash content, 6-10 water, 1.18-1.34 total phosphorus, 1.42-1.55 lysine and 5-8 crude fiber. The grass carp compound feed effectively solves the problems that in the existing grass carp culturing process, the protein conversion efficiency is low, the feed coefficient is high and a great deal of mesentery fat is accumulated, and improves the grass carp quality and edible proportion.

The invention relates to a formula of compound puffed feed for snakehead mullet and process for preparation, wherein the constituents in the formula comprise (by mass ratio): fish meal 35-50%, fermented soybean waste 10-20%, meat and bones meal 0-12%, silkworm chrysalis powder 0-5%, blood powder 0-5%, brewer's yeast 2-5%, shrimp grease 0-6%, fish oil 1.0-3%, high grade flour 10-20%, liquid phosphatide 1-2%, calcium dihydrogenphoshate 0.5-1.5%, composite vitamin 0.5-1%, compound minerals 0.5-1%, choline chloride 0.3-0.5%. The preparing process consists of proportioning constituents, mixing homogeneously, disintegrating, modulating, palletizing and drying.

The invention discloses a low-carbon and environment-friendly fish-farming method. The method comprises the following steps: (1) performing cage culture in a pond and assembling a fish feces recovery system and a translation bottom sewage self-leaking system under a cage to recover fish feces, so that sewage and deposits at the bottom of the pond are discharged effectively, and pollution of fish feces and residual feeds on a water body is lowered; (2) arranging aeration equipment outside a cage culture zone to promote flow of the upper, lower and surface layers of the water body and increase dissolved oxygen of the water body; (3) planting aquatic plants in a floating bed and combining pond culture and wet land planting and culture outside the cage so as to realize coexistence of fishes and vegetables and biologically purify water; (4) performing scientific fish culture by adopting a scientific culture mode represented by seven words, namely, water, planting, feed, prevention, separation, mixing and labor. According to the low-carbon and environment-friendly fish-farming method, the current-stage pond fish culture facility is changed, engineering of innovative culture equipment is realized, scientific design and scientific layout are achieved, scientific combination of comprehensive technologies such as physical and biological purification and the like is performed, combination with an ecological and environment-friendly culture technology is realized, and integrated innovation is implemented.

A feed for black porgy is proportionally prepared from fish powder, soybean dregs, black snakehead fish powder, rapeseed dregs, cotton seed dregs, flour No.4, fish fat, soybean oil, soybean phosphatide, calcium dihydrogen phosphate and additive containing vitamins, minerals, etc. It has high nutritive value.

The invention relates to anti-stress and puffed mixed feed for ctenopharyngodon idellus and a production method for the feed. The mixed feed includes the following raw materials in mass percentage: 0-8% of meat and bone meal, 2-5% of broad bean albumen powder, 8-18% of soybean meal, 20-30% of rapeseed dregs, 10-15% of cottonseed meal, 10-20% of wheat, 10-20% of tapioca flour, 5-8% of rice bran, 2-4% of soya-bean oil, 0.2-0.4% of 50% choline chloride, 0.9-1.5% of monocalcium phosphate, 1-2% of vitamin premix, 1-2% of mineral premix, 1-2% of zeolite powder, 0.02-0.1% of GSH, 0.01-0.08% curcumin, 0.01-0.03% of tea polyphenol, 0.05-0.1% of taurine, 0.005-0.01% of rheum emodin, 0.01-0.02% of L-carnitine, and 0.02-0.03% of complex enzyme preparation. The anti-stress and puffed mixed feed improves the digestibility and deposition of feeding ctenopharyngodon idellus to nutrient substances of the feed, improves the immune, antioxidant and anti-stress ability of fish body and promotes growing of ctenopharyngodon idellus.

The invention discloses crab fodder with added enteromorpha prolifera and a Chinese herbal medicine immunopotentiator. The fodder product comprises raw materials of 15-20 parts of bran, 20-30 parts of smashed straw, 10-15 parts of wheat shorts, 8-12 parts of enteromorpha prolifera powder, 8-10 parts of bean pulp, 8-10 parts of cottonseed meal, 12-18 parts of high protein flour, 4-6 parts of dried blood, 3-5 parts of sea fish oil, 4-6 parts of animal fat, 1-3 parts of inkfish paste, 0.5-1 part of Chinese herbal medicine mixture, 0.5-1.5 parts of choline chloride, 0.3 part of salt, 0.2 part of glycine betaine, 0.2 part of inositol, 0.5 part of multi-vitamin, 1 part of composite microelement and 0.5 part of allicin. The product has the advantages that crabs are promoted to grow quickly obviously, the cultivation breeding rate is improved, cultivation cost is lowered, the breeding digestibility is improved, nitrogen and phosphorus excretion is lowered, and breeding environment is improved, and high cost performance and promotion application value are achieved.

The present invention is one kind of green compounded and puffed feed for egg-shaped silver anchovy and carangid. The green compounded and puffed feed is prepared with steamed fish meal 25-45%, soybean residue 5-25%, pork bone powder 5-20%, beer yeast 1-6%, cuttle fish paste 2-5%, fish oil 1.0-2%, macaroni flour 10-26%, shrimp head powder 3-6%, lecithin 0.5-1%, vitamins 0.3-0.5%, compounded mineral 0.5-1% and choline chloride 0.3-0.5%, and through homogeneous mixing, adding astaxanthin 20-30g, carotenoid 30-50g and compound immunopotentiator 50-70g to each 100 kg of the mixture, extruding to pelletize, and stoving. The green compounded and puffed feed has simple compounding process and balanced nutrients, can meet the requirement of the growth of egg-shaped silver anchovy and carangid and raise the immunity of egg-shaped silver anchovy and carangid, and results in less water contamination.

The invention relates to the technical field of animal feeds, and more specially relates to a feed for juvenile grass carps. The feed comprises the following components in parts by weight: 10-16 parts of bean pulp, 16-20 parts of wheat middling, 16-38 parts of straw powder, 8-12 parts of rapeseed meal, 12-16 parts of fish meal, 0.1-1.0 part of multi-vitamin, 2-5 parts of a traditional Chinese medicine additive and 0.5-1.5 parts of sesame oil, wherein the traditional Chinese medicine additive comprises the following components: honeysuckle, folium isatidis, common andrographis herb, golden cypress, coptis chinensis, codonopsis pilosula, glossy privet fruits, mung beans, hawthorn, astragalus membranaceus, medicated leaven, poria cocos, pericarpium citri reticulatae, Chinese yams and roasted malt. According to the feed provided by the invention, the survival rate of the juvenile grass carps and the weight of adult fish are improved, the survival rate can reach 99%, and the growth rate of body mass further can reach 174.6%, and the feed coefficient is reduced, the feed conversion rate is improved and the benefit of companies is increased.

The invention relates to extruded and expanded feed and a preparation method thereof, in particular to expanded feed for preventing herring fatty liver and a preparation method thereof. The extruded and expanded feed comprises the following components in percentage by weight: 15-20 percent of direct-fired fish meal, 20-30 percent of extruded soybean, 10-17 percent of rapeseed meal, 8-16 percent of blood meal, 0.5-1.5 percent of fish oil, 15-25 percent of strong flour, 8-12 percent of meat and bone meal, 0.5-1.5 percent of vitamin premix, 0.5-1.5 percent of mineral salt premix, 1-2 percent of calcium biphosphate, 0.3-0.5 percent of choline chloride, 0.1-0.5 percent of lycine, 0.1-0.5 percent of turmeric, 0.1-0.5 percent of sphorae favescentis, 0.1-1 percent of creat and 0.1-0.5 percent of liquorice. The invention not only can meet the growth demand of herring, but also can prevent the fatty liver caused by feeding the feed in the cultivation process.

The invention relates to a compound phagostimulant for Chinese shrimps, which comprises dimethyl-beta-propanoic thetine, taurine, glycine, sodium citrate, alanine and glutaminic acid by the weight ratio of 25-35, 15-25, 15-25, 5-15, 5-15 and 5-15.

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 compound traditional Chinese medicinal preparation prepared from raw materials including rhubarb, acanthopanax, radix astragali, hawthorn and liquorice according a certain weight ratio. A method for preparing fish compound traditional Chinese medicinal preparation comprises the following steps of: A. washing and drying the rhubarb, the acanthopanax, the radix astragali, the hawthorn and the liquorice in the sun; B. respectively crushing and sieving the rhubarb, the acanthopanax, the radix astragali, the hawthorn and the liquorice to ensure the granularity reaches 140-200 mu; and C. weighing up the rhubarb, the acanthopanax, the radix astragali, the hawthorn and the liquorice according to the ratio and mixing and subpackaging after uniformly mixed to obtain the fish compound traditional Chinese medicinal preparation. The method has the advantages of feasibility, convenient operation, reasonable formulation and convenient use; traditional Chinese medicines have wide sources, low price, remarkable effects and no toxic or side effects; various components mutually act; and the invention simultaneously has two properties of nutrition and medicament, not only contains nutrient substances, but also has components with antibacterial activity and other bioactivities, can improve the metabolism of cultivated fishes, promote the growth and the development, improve the immunologic function, prevent and treat diseases and the like.

A method for culturing one-instar fry of black carp, grass carp, silver carp and variegated carp includes choosing rarieties, pretreating pond, proportionally culturing them in a single pond, regulating water quality, and scientifically applying feed and fertilizer.