55results about How to "No adverse effects on palatability" patented technology

The invention discloses a method for producing a forage immune enhancer by adopting a soybean curb residue and an orange peel. The method comprises the following steps: respectively crushing the soybean curb residue, dried pine needles, dry dunaliella cells and dry orange peel into coarse powder of 60-80 meshes; burdening the raw materials in parts by weight: 45-50 parts of soybean curb residue, 30-35 parts of dried pine needles, 2-5 parts of dry dunaliella cells, 15-18 parts of dry orange peel and 2.0-2.5 parts of an assistant, wherein the assistant is prepared from 49 parts of NaHCO3 and 1 part of MgSO4; the moisture content of the pine needles, the dunaliella cells and the orange peel is 3-5%, the moisture content of bean dregs is 18-20%; mixing the mixture of four coarse powder with the assistant according to the ratio, wherein the assistant accounts for 2.0-2.5% of dry weight of the total material; evenly mixing and then grinding for 30 minutes; filtering by a 400-mesh sieve; processing by using enzyme-aid micronization treatment, so as to obtain the forage immune enhancer product, wherein the treatment time is 15-30 minutes according to the quality and the humidity of the raw materials. By adopting the forage immune enhancer produced by the method disclosed by the invention, the production cost of the raw materials is significantly reduced, a lot of waste bean dregs produced in bean product production are recycled, low-carbon production is achieved, and the added value of products is increased.

The invention relates to a Chinese herb medicinal additive for preventing tilapia fatty liver disease. The Chinese herb medicinal additive is characterized by comprising the following components in part by weight: 8 to 10 parts of mung bean, 1 to 3 parts of liquoric root, 1 to 3 parts of gentian, 1 to 3 parts of raw gardenia, 1 to 3 parts of baical skullcap root, 1 to 3 parts of bupleurum, 2 to 5 parts of rehmannia root, 1 to 3 parts of plantain herb, 1 to 3 parts of virgate wormwood herb, 1 to 3 parts of indigowoad root, 1 to 3 parts of Mongolian dandelion herb, 2 to 5 parts of feverfew, 1 to 3 parts of turmeric root-tuber and 1 to 3 parts of oriental waterplantain rhizome. The Chinese herb medicinal additive has the advantages of capacities of obviously reducing liver weight / body weight and fat content of muscle and liver of the tilapia, reducing glutamic-oxalacetic transaminase activity, glutamic-pyruvic transaminase activity, total cholesterol content and triglycercide content in tilapia serum, protecting liver cells from the damage of factors such as nutritional factors, environmental factors and the like and effectively preventing nutritional fatty liver disease in the breeding process of the tilapia, convenient addition and use, capacity of being added in a commercial feed directly, synergistic effect of the components and other additive components in the commercial feed, improvement on the disease resistance of the tilapia, stable raw material source, low cost, simple production process and easy industrialized production.

The invention relates to a compound immunopotentiator for post larvae of litopenaeus vannamei, which comprises the following components in percentage by weight: 20-30 percent of beta-glucan, 20-30 percent of chitosan, 5-10 percent of ginsenoside, 10-20 percent of astragalus polysaccharides, 5-10 percent of phospholipid, 40-60 percent of vitamin C-2-polyphosphate ester, 10-15 percent of vitamin E, 5-10 percent of vitamin A, 10-20 percent of bacillus subtilis and 1-5 percent of clamworm powder. The invention has the following advantages that: (1) the problem of feedback inhibition of the post larvae of litopenaeus vannamei is overcome effectively; (2) the immunity of the post larvae of litopenaeus vannamei is enhanced obviously, and the survival rate is increased; (3) the activity and the growth speed of the post larvae of litopenaeus vannamei are increased obviously; (4) the compound immunopotentiator has the addition amount of only 0.2-0.3% when used as a feed additive for a particle feed of the post larvae of litopenaeus vannamei; (5) no adverse effect on the palatability of the feed exists; and (6) the source of the raw materials is stable, the cost is low, and the production process is simple.

Compound Chinese medicinal herb immunopotentiator for rudd is prepared from the components by weight: 10 to 20 percent of radix astragali, 10 to 20 percent of honeysuckle, 10 to 15 percent of rhubarb, 10 to 15 percent of eucommia bark leaf powder, 10 to 15 percent of liquorice, 10 to 15 percent of hawthorn, 5 to 10 percent of Rhizoma Atractylodis Macrocephalae, and 5 to 10 percent of safflower. The invention has the following advantages that the compound Chinese medicinal herb immunopotentiator can be used as feed additive in rudd compound feed, and is added in to the rudd compound feed by only 0.1 to 0.2 percent, can remarkably increase the organism immunity and improve the survival rate of rudd, can completely replace antibiotics, has no adverse effect and no residue to the palatability of feed, and has a stable raw material resources, low cost and simple production technology.

The invention relates to a composite immunity intensifier for groupers, which comprises the following components according to weight percentage: 30 to 40 percent of Beta-dextran, 10 to 20 percent of A3 Alpha peptidoglycan, 10 to 20 percent of vitamin C-2- polyphosphate ester, 10 to 20 percent of levomisole, 5 to 10 percent of ginsenoside and 5 to 10 percent of vitamin E. The invention has the advantages that: firstly, the composite immunity intensifier effectively overcomes the problem that the body reverse feedback of the groupers is restrained and can be used in the whole culturing period of the groupers; secondly, the composite immunity intensifier as a feed additive is used in the compound feed of the groupers and only has 0.1 to 0.2 percent of addition amount; thirdly, the body immunity of the groupers is intensified obviously and the survival rate is improved; fourthly, the composite immunity intensifier has no bad effect on the palatability of feed; and fifthly, the raw material used by the composite immunity intensifier has stable source, low price and simple production process.

A compound immunoenhancer for larvae and juvenile of tilapia comprises the following components by weight percent: beta-glucan 20-30, ginsenoside 5-10, seaweed polysaccharides 10-20, phospholipids 5-10, vitamin C-2-polyphosphate ester 20-30, vitamin E 10-15, digestive enzyme 5-10 and citric acid 5-10. The compound immunoenhancer obviously strengthens the immunity of the larvae and juvenile of the tilapia and increases the survival rate, the activities and growth speed of the larvae and juvenile of the tilapia; the compound immunoenhancer is used as a feed additive in the feed of the larvae and juvenile of the tilapia, with additive dosage of only 0.2-0.3%, which has no adverse effect on the feed palatability. The used raw materials enjoy stable sources, low price and simple production technology.

The invention relates to a vitamin feed additive premix for sea fish, and belongs to the technical field of feed additives for fish culture. The vitamin feed additive premix is prepared by uniformly mixing vitamin A, vitamin D, vitamin E, vitamin K, vitamin B1, vitamin B2, vitamin B6, vitamin B 12, nicotinic acid, folic acid, calcium pantothenate, biotin, inositol, VC (vitamin C) phosphate ester and zeolite powder according to a certain percentage ratio and further adding into feed according to the proportion of 0.5%-1%. The vitamin feed additive premix disclosed by the invention has the following advantages: (1) the vitamin feed additive premix can be used during the whole culture cycle; (2) the adding amount in the feed for the sea fish is 0.5%-1%; (3) the immunity of fresh water fish can be effectively enhanced and the survival rate is improved; (4) the vitamin feed additive premix disclosed by the invention has no adverse effects on palatability of the feed; and (5) raw material sources used by the vitamin feed additive premix disclosed by the invention are stable, the price is low, and the production process is simple.

The invention discloses a compound Chinese herbal medicine additive capable of preventing fatty liver of trachinotus ovatus. The additive comprises the following components in parts by weight: 30-40 parts of mung bean, 10-15 parts of Chinese angelica, 10-15 parts of virgate wormwood herb, 10-15 parts of radix astragali, 5-10 parts of radix isatidis, 5-10 parts of gentian and 5-10 parts of liquorice. The invention also provides a trachinotus ovatus compound feed containing the compound Chinese herbal medicine additive. Through the compound Chinese herbal medicine additive and compound feed provided by the invention, the liver index of the trachinotus ovatus can be effectively reduced, and the capability of transferring fat of the trachinotus ovatus liver is improved so as to reduce diseases particularly fatty liver and increase the survival rate of the farmed fishes.

The invention provides a feed additive for industrial prawn aquaculture. The feed additive comprises the following components in parts by weight: 30-40 parts of shrimp shell meal, 5-20 parts of cysteamine, 1-3 parts of cellulose, 2-5 parts of lecithin, 2-5 parts of calcium carbonate, 0.1-0.5 part of phytase, 0.5-2.0 parts of bacillus, 1.0-3.0 parts of candida utilis, 0.1-0.4 part of bio-active humic acid, 0.1-0.4 part of chitosan, 0.3-0.7 part of tea polyphenol and 1.2-4.0 parts of trace element additives. The feed additive disclosed by the invention is enriched in various essential protein sources, trace elements, special mineral substances and vitamins, and the requirements on various nutritional ingredients at the growth stage in the earlier stage of the prawn aquaculture are met; and moreover, the feed additive disclosed by the invention does not have any harmful effect on palatability of a feed, prawns fed by the feed added with the feed additive is fast in growth and healthy, and high economic benefits and ecological benefits are brought to enterprises and farmers.

The invention relates to a growth promoter for Babylonia, which comprises the following components in percentage by weight: 30 to 50 percent of fish meal, 5 to 10 percent of philippinarum extracts, 20 to 30 percent of phospholipid, 40 to 80 percent of vitamin C-2- polyphosphate, 5 to 10 percent of fish oil, 20 to 30 percent of vitamin E, 10 to 20 percent of digestive ferment, 10 to 30 percent of beta glucan and 1 to 3 percent of housefly larva meal. The invention has the following advantages of remarkably improving the activity and the growth speed of Babylonia, remarkably enhancing the immunity of Babylonia and the survival rate, having no any adverse effects on the feed palatability and the amount of only 0.2 to 0.3% when being used as additive in Babylonia feed, and also having stable source and low price of raw materials as well as simple production process.

A feed additive for improving the fertility of parent fish of tilapia comprises the following components by weight percent: fish meal 10-20, ragworm meal 1-5, soybean protein isolates 30-40, phospholipids 10-20, fish oil 5-10, vitamin C-2-polyphosphate ester 5-10, vitamin E 10-15, vitamin A 1-5, zinc-amino acid chelate 1-3 and manganese-amino acid chelate 0.5-1. The feed additive obviously improves the body condition of the parent fish of the tilapia, enhances the fertility of the parent fish of the tilapia and increases the egg laying amount of the parent fish, the egg fertilization rate, the hatchability and the survival rate of larvae and juvenile; the feed additive is used in the feed of the parent fish of the tilapia, with additive dosage of only 1-3%, which has no adverse effect on the feed palatability. The used raw materials enjoy stable sources, low price and simple production technology.

The invention relates to a mineral element additive for Babylonia. The mineral element additive consists of the following components in percentage by weight: 5 to 10 percent of monocalcium phosphate, 25 to 35 percent of iron methionine, 20 to 30 percent of zinc methionine, 10 to 15 percent of copper methionine, 5 to 10 percent of manganese glycin, 0.1 to 0.3 percent of one-percent iodine, 0.05 to 0.1 percent of one-percent selenium and 0.1 to 0.2 percent of one-percent cobalt. The invention has the following advantages that: (1) the mineral element additive satisfies the need of Babylonia on mineral element nutrient; (2) the mineral element additive remarkably increases the activity and growth speed of Babylonia; (3) the mineral element additive remarkably increases the immunity and survival rate of Babylonia; (4) the mineral element additive has no any adverse affection on the palatability of feed; (5) when the mineral element additive is used in Babylonia feed as feed additive, the dosage is only 0.5 to 1 percent; (6) the source of the used materials is stable, the price is low, and the production technique is simple.

The invention relates to a method for preventing prawn leukoderma, which is characterized by adding 0.1-0.2 wt% of gulfweed polysaccharide extract to the foodstuff of prawns. By adopting the method to cultivate prawns, non-specific immune system is stimulated, thus strengthening the immunity and resistance of prawns, obviously enhancing the immune function of prawns, and does not generate adverse influence on the palatability of foodstuff and has significant effect on the prevention of prawn leukoderma. The method has stable source of gulfweed, simplified production technology and significant effect.

The invention discloses a feed additive for improving the capacity of young sillago sihama for resisting transportation stress. The feed additive consists of the following components in parts by weight: 20-30 parts of chromium methionine, 10-20 parts of chromium picolinate, 10-20 parts of vitamin E, 10-20 parts of vitamin C-polyphosphate, 10-20 parts of vitamin A, 5-10 parts of beta-glucan, 5-10 parts of radix astragali polysaccharide, 5-10 parts of bacillus subtilis, 5-10 parts of zinc methionine and 1-3 parts of selenium methionine. The feed additive provided by the invention can obviously improve the stress resistance and the immunity of the young sillago sihama, and besides, the ingestion rate, the growth speed and the survival rate of the young sillago sihama are obviously increased; the feed additive provided by the invention is small in addition quantity, good in effects, and free from any adverse effects on palatability of feeds; and the sources of raw materials are stable, the price and the cost of the feed additive are reasonable, and the production technology is simple.

The invention discloses a phagostimulant for babylonia areolata larvae snails. The phagostimulant for babylonia areolata larvae snails disclosed by the invention consists of the following ingredients in percentage by weight: 10 to 20 of lycine, 10 to 15 of sleeve-fish visceral meal, 5 to 10 of methionine, 5 to 10 of lysine, 5 to 10 of citric acid, 5 to 10 of phospholipids, 10 to 20 of algal polysaccharides, 10 to 20 of trimethylalanine and 5 to 10 of dimethyl-beta-propiothelin. The phagostimulant has the following advantages that: (1) the food intake of the babylonia areolata larvae snails can be obviously enhanced, meanwhile, remnant feeds are reduced, and the environment is favorably protected; (2) the growth speed of the babylonia areolata larvae snails can be obviously accelerated, and the survival rate is improved; (3) the consumption of fish meal in feed can be greatly reduced, fishery resources are protected, and the feed cost is reduced; (4) the phagostimulant is used as a feed additive to be used in the babylonia areolata larvae snail feed, and the addition is only 0.1 to 0.2 percent; and (5) any adverse influence is not caused on the feed palatability; and (6) the used raw material source is stable, the price is low, and the production process is simple.

The invention discloses functional composite additive premix for a freshwater fish. The functional composite additive premix is characterized by comprising the following components by weight ratio per kilogram: 25-50g of ginsenoside, 50-80g of vitamin A, 25-50g of vitamin E, 50-100g of vitamin C-2-polyphosphoester, 150-200g of Beta-glucosan, 50-100g of A3Alpha-peptidoglycan, 60-100g of levomisole and the balance of rice bran. The functional composite additive premix has the following advantages that (1) the functional composite additive premix can be used in a complete breeding cycle; (2) the adding amount in a freshwater fish feed is 0.5-1%; (3) the immunity of the organism of the freshwater fish can be effectively enhanced, and the survival rate is improved; (4) the functional composite additive premix has no adverse effect on the palatability of the feed; (5) the functional composite additive premix is stable in used material source and low in price, and production technology is simple.

The invention relates to a compound immunopotentiator for Babylonia, which comprises the following components in percentage by weight: 10 to 20 percent of beta-glucan, 5 to 10 percent of ginsenoside, 10 to 20 percent of algal polysaccharides, 5 to 10 percent of phospholipid, 20 to 30 percent of vitamin C-2-polyphosphate, 10 to 15 percent of vitamin E, 5 to 10 percent of vitamin A, 5 to 10 percent of digestive ferment and 1 to 3 percent of housefly larva meal. The invention has the following advantages of remarkably improving the activity and the growth speed of Babylonia, remarkably enhancing the immunity of Babylonia and the survival rate, having no any adverse effects on the feed palatability and the amount of only 0.2 to 0.3% when being used as additive in Babylonia feed, and also having stable source and low price of raw materials as well as simple production process.

The invention discloses a feed additive for the production of Beta-carotene-rich eggs and a preparation method thereof, which belong to the technical field of feeds. The novel feed additive is characterized in that: the feed additive contains microshear-additive red pepper powder and microshear-additive dunaliella powder which are obtained by the processing of the microshear-additive interaction technique, wherein the mixture ratio of the microshear-additive red pepper powder to the microshear-additive dunaliella powder is between 1:2 and 1:6. The invention utilizes the advanced microshear-additive interaction technique to process natural plants, so that a great deal of Beta-carotene in the natural plants can be released and easily absorbed by animals, consequently, compared with the conventional processing technique, the invention notably reduces the amount of added red peppers and dunaliella, so that the production cost is saved, moreover, the potential hazard of ingredients (such as capsaicin) irritating the intestinal tracts of female poultry is reduced, and ultimately, the content of Beta-carotene in eggs and the weights of eggs can be notably increased; moreover, the processis simple, and the feed additive is convenient to use.

The invention discloses an environment-friendly macrobrachium rosenbergii compound feed. The compound feed comprises the following components in parts by weight: 10-15 parts of imported fish meal, 15-20 parts of peeled soybean meal, 5-6 parts of squid paste, 7.5-20 parts of flour, 8-10 parts of shrimp shell powder, 8-10 parts of peanut kernel cakes, 6-10 parts of cottonseed meal, 6-8 parts of rapeseed meal, 4-4.5 parts of soybean oil, 2 parts of phospholipid, 2 parts of calcium dihydrogen phosphate, 2 parts of a Chinese herbal medicine compound preparation, and 2 parts of a premix and an additive. According to the compound feed provided by the invention, partial fish meal is replaced by match of a plurality of animal protein raw materials and vegetable protein raw materials on the premiseof not damaging the balance of amino acid, so that the compound feed has the characteristics of low fish meal content, low bait coefficient, low feed cost and good stability in water, can promote feeding of macrobrachium rosenbergii, and can improve the growth speed of macrobrachium rosenbergii.

The invention relates to a feed additive for preventing early death of litopenaeus vannamei, and a preparation method and application of the feed additive. The feed additive comprises the following major ingredients of microencapsulated haematococcus pluvialis powder, organic acid and esters. Slow release and protection of the organic acid and algae source astaxanthin are achieved through two kinds of coating liquid with different functions; and a double-layer coating process is used, so that the relative independence of the additive is improved, and the reaction with feed ingredients in the application process is effectively avoided. After 0.5 to 1 mass percent of additive is added into the feed for the litopenaeus vannamei, the body immunity of the litopenaeus vannamei can be effectivelyenhanced; the propagation of vibrio parahaemolyticus is effectively controlled, the intestinal flora balance is improved, and meanwhile, the disease resistance of the litopenaeus vannamei is enhanced; further, the outbreak of early death syndrome of the litopenaeus vannamei is prevented; healthy growth of the litopenaeus vannamei is promoted; and no adverse effect is caused on the palatability ofthe feed. The feed additive has the advantages of no pollution, no residue and no side effect, achieves safety and environment-friendly effects, and can be widely applied to the technical field of feed additives.

The invention belongs to the technical field of feed, and particularly relates to a feed additive capable of improving the high-temperature stress resistance ability of a mariculture animal, and a preparation method and application thereof. The feed additive comprises chromium nicotinate, various vitamins, various trace elements, glutamine, cysteamine hydrochloride, allicin, astragalus polysaccharide, berberine hydrochloride, bacillus subtilis, lactic acid bacteria, sodium bicarbonate, methionine, lysine, tryptophan, potassium dihydrogen phosphate and digestive enzyme, and is added into mariculture animal feed at an addition ratio of 0.1-0.5%, the high-temperature stress resistance ability of the mariculture animal can be effectively improved, the ingestion rate, the digestion rate, the growth rate and the survival rate of the mariculture animal are obviously improved, and the physiological steady state and the immunity of the mariculture animal are improved. Meanwhile, raw materials adopted by the feed additive have a stable source and a reasonable price cost, and the feed additive disclosed by the invention has a simple production technology and does not have any bad influence onfeed palatability.

The invention discloses an immunopotentiator for greasy back shrimps, belonging to the technical field of feed additives. The immunopotentiator is prepared from the following components in parts by weight: 5-10 parts of purslane, 10-20 parts of codonopsis pilosula, 5-10 parts of polygonum cuspidatum, 15-30 parts of abelmoschus esculentus powder, 5-10 parts of orange peel, 6-18 parts of houttuynia cordata, 5-10 parts of medlar and 6-18 parts of folium mori. The immunopotentiator for greasy back shrimps is reasonable in compatibility; when the immunopotentiator is added into a feed, the immunologic functions and disadvantage resistance of the greasy back shrimps can be favorably enhanced, the healthy and safe growth of the greasy back shrimps is favorably promoted, the resistance to diseases is improved, and the survival rate is increased. In addition, the immunopotentiator is green, pollution-free, safe, reliable and free of adverse effects on the palatability of the feed.

The invention discloses an immunopotentiator for siganidae, belonging to the technical field of feed additives. The immunopotentiator is prepared from the following components in parts by weight: 10-30 parts of mushrooms, 10-30 parts of carrots, 2-10 parts of Indian damnacanthus herb roots, 15-30 parts of acanthopanax senticosus, 1-6 parts of limacia sagittata, 2-10 parts of cyrtomium rhizome, 15-30 parts of white poria, 1-6 parts of gynostemma pentaphyllum, 2-10 parts of hawthorns, 2-10 parts of spinaches and 0.1-0.5 part of vitamin C. The immunopotentiator for siganidae is reasonable in compatibility; when the immunopotentiator is added into a feed, the immunologic function and disadvantage resistance of the siganidae can be favorably enhanced, the healthy and safe growth of the siganidae is favorably promoted, the resistance to diseases is improved, and the survival rate is increased. In addition, the immunopotentiator is green, pollution-free, safe, reliable and free of adverse effects on the palatability of the feed.

The invention discloses a Chinese medicinal herb for improving the male ratio of fries of Sarotherodon sp. The Chinese medicinal herb is characterized by comprising the following components: 10.00 percent of longspur epimedium, 13.00 percent of eucommia bark, 9.00 percent of Codonopsis pilosula, 12.00 percent of licorice root, 18.00 percent of astragalus, 10.00 percent of medlar, 15.00 percent of motherwort herb, 12.00 percent of black soybean, and 1.00 percent of south dodder seed. By feeding a commercial feed containing the Chinese medicinal herb preparation for a long time, the secretion level of sex hormones of the Sarotherodon sp can be better promoted, and the male ratio of the fries can be improved; and the effect is close to the treatment effect of synthetic hormones. Moreover, the Chinese medicinal herb is a nuisanceless and low-residue ecological preparation, and the residue is difficult to form in fish bodies; the method has no adverse effect on the palatability of feeds, and has smaller irritation to fishes compared with the injection of the synthetic hormones; meanwhile, the raw material source of the Chinese medicinal herb is stable, the cost is low, and the production process is simple.

The invention discloses a feed additive for preventing and treating liver diseases, and the feed additive comprises, by mass, 1-20% of bile acid, 0.1-15% of curcumin, 0.1-15% of L-carnitine, 0.5-5% ofvitamin, 0.2%-20% of an enzyme preparation and 0.1%-60% of auxiliary materials. According to the invention, components of the bile acid, the curcumin, the L-carnitine, the compound vitamin and the enzyme preparation are scientifically matched, the prepared medicine can be used for effectively preventing and treating liver diseases such as fatty liver and liver and gall syndrome of aquatic animals, the survival rate is improved, the nutrient substance digestive absorption of the aquatic animals is promoted, the growth speed of the animals is increased, the breeding period is shortened, the feed coefficient is reduced, and the method is suitable for the production market requirements of feed additives; the preparation method of the feed additive for preventing and treating the liver diseaseis simple in operation method, the used raw materials are stable in source, the cost is low, the process controllability is strong, and the feed additive for preventing and treating the liver diseases can be prepared.

The invention discloses an edible feed for eels and a preparation method of the edible food, and belongs to the technical field of fish feeds. The edible feed consists of the following components in parts by weight: 5 to 20 parts of earthworm, 10 to 30 parts of conch meat, 1 to 10 parts of pig lung, 1 to 5 parts of edible salt, 1 to 5 parts of edible sodium bicarbonate, 1 to 5 parts of the vitamin C and 30 to 60 parts of compound feed; the edible feed for the eels is obtained by crushing and mixing the components. By adopting the technology and using the above formula, the raw materials of the formula of the edible feed are stable in source and low in cost; the production process of the edible feed is simple; through the reasonable combination of the components, various components supplement one another in effect and the effect of each component is played better, so that the nutritional value of the edible feed is increased; the edible feed has no toxic or side effects, adverse reaction or bad influences on the palatability of the feed; the eels fed by the feed are fine and tender in meat, high in nutritional value, and popular with consumers.

The invention relates to a Chinese herb medicinal additive for preventing tilapia fatty liver disease. The Chinese herb medicinal additive is characterized by comprising the following components in part by weight: 8 to 10 parts of mung bean, 1 to 3 parts of liquoric root, 1 to 3 parts of gentian, 1 to 3 parts of raw gardenia, 1 to 3 parts of baical skullcap root, 1 to 3 parts of bupleurum, 2 to 5parts of rehmannia root, 1 to 3 parts of plantain herb, 1 to 3 parts of virgate wormwood herb, 1 to 3 parts of indigowoad root, 1 to 3 parts of Mongolian dandelion herb, 2 to 5 parts of feverfew, 1 to 3 parts of turmeric root-tuber and 1 to 3 parts of oriental waterplantain rhizome. The Chinese herb medicinal additive has the advantages of capacities of obviously reducing liver weight / body weightand fat content of muscle and liver of the tilapia, reducing glutamic-oxalacetic transaminase activity, glutamic-pyruvic transaminase activity, total cholesterol content and triglycercide content in tilapia serum, protecting liver cells from the damage of factors such as nutritional factors, environmental factors and the like and effectively preventing nutritional fatty liver disease in the breeding process of the tilapia, convenient addition and use, capacity of being added in a commercial feed directly, synergistic effect of the components and other additive components in the commercial feed, improvement on the disease resistance of the tilapia, stable raw material source, low cost, simple production process and easy industrialized production.

The invention discloses a feed additive for reducing the emission of nitrogen and phosphorous of litopenaeus vannamei aquatic water. The feed additive consists of the following components in percentage by weight: 30 to 40 percent of pangasinan extract, 10 to 20 percent of beta-glucan, 10 to 20 percent of algal polysaccharides, 20 to 30 percent of vitamin C-2-polyphosphate and 10 to 15 percent of vitamin E. The feed additive has the advantages that: (1) the content of nitrogen, phosphorus, nitrate and nitrite of the litopenaeus vannamei aquatic water can be obviously reduced, and environment is protected; (2) the growth speed of litopenaeus vannamei can be obviously improved, the survival rate is improved, the quality of aquatic products is improved and the feed cost is reduced; (3) when the feed additive is used in a feed for litopenaeus vannamei, the adding amount of the feed additive is only 0.1 to 0.2 percent; (4) the feed additive does not have any adverse effect on the palatability of the feed; and (5) the raw materials are stable in sources and low in prices, and a production process is simple.

The invention relates to a feed additive for preventing early death of prawns and its preparation method and application. The main components of the additive include microencapsulated Haematococcus pluvialis algae powder, organic acids and esters. The slow release and protection of organic acids and algal astaxanthin are achieved through two coating solutions with different functions; the use of double-layer coating technology improves the relative independence of the additive and effectively avoids the interaction with feed ingredients in the application process. reaction. Adding 0.5% to 1% of the additive in the feed of Penaeus vannamei can effectively enhance the immunity of the body of Penaeus vannamei, effectively control the reproduction of Vibrio parahaemolyticus, improve the balance of intestinal flora, and enhance the disease resistance of the shrimp. , thereby preventing the outbreak of the early mortality syndrome of Penaeus vannamei, promoting the healthy growth of the shrimp, and having no adverse effects on the palatability of the feed. The additive has no pollution, no residue, no side effects, is safe and environment-friendly, and can be widely used in the technical field of feed additives.

The invention relates to a freshwater fish feed supplement, belonging to the technical field of feed additives. The freshwater fish feed supplement is composed of the following components in parts by weight: 10-30 parts of selfheal, 10-30 parts of the root of kudzu vine, 10-30 parts of liquorice, 10-15 parts of scutellaria baicalensis, 8-15 parts of turtle shell, 1-5 parts of edible vinegar, and 1-5 parts of rhizoma zingiberis. According to the freshwater fish feed supplement disclosed by the invention, the pharmacological effects of various components are supplementary and increased with each other by limiting reasonable compatibility of the components, so that the pharmacological effects of various components take effect extraordinarily; found from experiments, if being used with a freshwater fish feed in a matched manner, the freshwater fish feed supplement prepared by adopting the formula, which is disclosed by the invention, is capable of effectively enhancing organism immunity of freshwater fish, increasing disease resistant capability and survival rate and effectively preventing common diseases of freshwater fish; furthermore, the freshwater fish feed supplement is free from toxic and side effects and adverse reaction and does not have adverse effects on palatability of the feed, and therefore, the growth rate of freshwater fish is greatly increased; the economic benefit is increased; furthermore, the production process is simple, and thus, the freshwater fish feed supplement is suitable for being popularized and applied.