49 results about "Dimethyl-beta-propiothetin" patented technology

The invention relates to a feed additive, in particular to a feed promoting agent for seawater cultured fishes, which comprises the raw materials in weight ratio in the terms of addition per ton of feed: 300-1200g of crystal taurine, 300-1000g of L-glycine, 500-1000g of L-alanine, 500-1200g of L-glutamic acid, 800-1500g of L-aspartate, 500-3000g of betaine hydrochloride, 1000-2000g of dimethyl-beta-propiothetin (DMPT) crude powder and 1100-8000g of degreased condensed fish soluble protein powder. Proved by multiple culture tests in seawater fish feeds, such as Japanese sea bass, sciaenops ocellatus, trachinotus ovatus, garrupa and the like, the feed promoting agent for seawater cultured fishes is capable of remarkably enhancing the food intake of the seawater fishes to the composite feed by above 10 percent and quickening the intake speed as well as remarkably improving the stress-resisting capability of the cultured objects; and the cultured the seawater fishes have the advantages of high survival rate, bright color and strong stress resistance.

The invention discloses a feed for treating mucormycosis of cyclemys trifasciata and a preparation method of the feed, and belongs to the technical field of testudinate feed processing. The feed comprises the following raw materials: earthworm powder, pomacea canaliculata powder, pumpkin powder, maize meal, salt, dimethyl-beta-propiothetin, glycine betaine, threonine, adenine nucleotide, sodium diacetate, sodium guanylate and traditional Chinese medicine preparation. The feed is prepared by the steps of stoving, pulverizing, screening, mixing, pelletizing, stoving, sterilizing and the like. The feed synthesizes efficacies of various traditional Chinese medicines, plays the functions of resisting bacterium, diminishing inflammation, enhancing the immunologic function of the body, and the like, and can effectively improve the cure rate of the mucormycosis of the cyclemys trifasciata and reduce the death rate. The feed is reasonable in preparation and rich in nutrition, so that the feed intake of the cyclemys trifasciata with the mucormycosis can be increased, and the growth rate is improved; the feed is sterilized at high temperature and high pressure, the time is short, the effect is good, and the retention time is long.

The invention discloses a special bait for fishing crucian. The special bait comprises the following raw materials in parts by weight: 20 to 50 parts of earthworm powder, 30 to 50 parts of blood worm powder, 20 to 40 parts of river shrimp powder, 20 to 50 parts of euphausiid shrimp powder, 10 to 30 parts of cyclop powder, 5 to 20 parts of scallop meat powder, 8 to 15 parts of field snail powder, 10 to 30 parts of oat flour, 10 to 25 parts of soybean meal, 4 to 10 parts of sweet potato powder, 5 to 20 parts of potato powder, 5 to 18 parts of wheat protein flour, 3 to 8 parts of mountain flour, 5 to 15 parts of clove, 0.5 to 1.5 parts of corn essence, 1 to 3 parts of maltose, 0.5 to 2 parts of sodium cyclamate, 0.4 to 2 parts of honey, 0.2 to 0.7 part of dimethyl-beta-propiothetin, 0.3 to 1 parts of betaine, and 2 to 7 parts of compound vitamins. The special bait for fishing the crucian has the advantages that the nutrients are complete, the price is low, the preparation is easy, the fish collecting speed is high, the usage amount is less, the easiness in dissolving in water is avoided, the fish retention time is long, and the fish luring and fishing effect is better.

The invention discloses a feed capable of improving Truogx sinensis disease resistance, and a preparation method thereof, and belongs to the technical field of testudinate feed processing. The feed comprises, by weight, ampullaria gigas, livestock and poultry leftover, locust, silkworm chrysalis, corn, pumpkin, algae, bone meal, table salt, dimethyl-beta-propiothetin, glycine betaine, and a Chinese herbal medicine preparation. The feed is prepared via steps of smashing, sieving, mixing, pelleting, drying, cooling, and packaging. The feed possesses functions of a plurality of Chinese herbal medicines; is capable of improving Truogx sinensis disease resistance effectively, increasing survival rate, improving palatability, increasing feed intake of Truogx sinensis, increasing growth speed, shortening growth period, reducing feed cost, improving production effectiveness, avoiding drug abuse caused by disease prevention, and improving Truogx sinensis quality. Operation of the preparation method is simple; and the preparation method is convenient for popularization and application.

The invention relates to feeding attractant used for turbot. The feeding attractant is characterized by consisting of trimethylamine hydrochloride, betaine, dimethyl-Beta-propiothetin, citric acid, taurine, sodium glutamate and aminoacetic acid; the weight percent (w / w) ranges of the components are as follow: 25 to 35, 25 to 35, 10 to 20, 5 to 10, 5 to 10 and 5 to 10. The feeding attractant used for turbot is used as additive in turbot feed, and only 0.5 percent to 1.5 percent of the feeding attractant is added. The feeding attractant used for turbot has the advantages that: (1) the feeding attractant is used in the turbot feed, and only a small amount of the feeding attractant is added; (2) the feeding attractant can obviously promote the ingestion and the growth of the turbot; meanwhile, can reduce residual bait, and is good for environment protection; (3) the feeding attractant can greatly reduced the consumption of fish meal in the feed, and reduce the feed cost; (4) the raw materials of the invention have stable sources, low cost and simple production process.

The invention discloses composite type freshwater fish phagostimulant which comprises the following raw materials in parts by weight: dimethyl-beta-propiothetin, glycine betaine, earthworm powder, locust powder, amino acid, nucleotide, a sweetening agent, a flavoring agent, an acidulant, a piquancy agent and a flavor enhancer. The phagostimulant is prepared by the following steps: weighting the raw material according to the ratio, putting the raw material into a mixing machine, and stirring for 10-15 minutes at the rotation speed of 200-400 r / minutes so as to uniformly mix the raw materials till the variable coefficient of the obtained mixture is less than or equal to 3%, thereby obtaining the composite type freshwater fish phagostimulant. The composite type freshwater fish phagostimulant integrates the effects of the sweetening agent, the flavoring agent, the acidulant, the piquancy agent and the flavor enhancer, is a natural additive, and can effectively increasing the feeding amount and the growth speed of freshwater fishes, shortening the growth period, improving the immunity of fish bodies and increasing the survival rates; by using the phagostimulant as an additive of freshwater feed, the feeding rate of the freshwater fishes to feed hard to digest is increased, the use range and the use amount of non-ordinary feed raw materials are increased, the feed cost is lowered, and the production benefits are increased.

The invention discloses a feed for controlling parotitis diseases of truogx sinensis and a preparation method thereof, belonging to the technical field of chelonian feed processing. The feed is prepared from the following raw materials: pomacea canaliculata, corn, pumpkins, snails, locusts, salt, dimethyl-beta-propiothetin, betaine, amino acids, nucleotide, sodium diacetate, mono-potassium glycyrrhizinate and a Chinese herbal medicine preparation. The feed is prepared through the steps of drying, grinding, sieving, mixing, granulating, drying, cooling, packaging, and the like. The feed has the beneficial effects that the feed integrates the effects of various Chinese herbal medicines, can achieve the functions of clearing away heat and toxic materials, resisting bacteria and diminishing inflammation and killing insects and can conduce to enhancing the disease resistance of truogx sinensis, effectively controlling parotitis of truogx sinensis, increasing the survival rate and reducing the breeding risks; the feed is reasonable in preparation, is rich in nutrients and can conduce to improving the palatability of truogx sinensis, increasing the feed intake and growth rate of truogx sinensis and shortening the growth cycle; the feed is simple in preparation method and low in production cost and is easy to popularize and apply.

The invention discloses a feed for treating a rotten-skin disease of cyclemys trifasciata and a preparation method of the feed, and belongs to the technical field of testudinate feed processing. The feed comprises the following raw materials: pomacea canaliculata powder, earthworm powder, maize meal, sweet potato powder, salt, dimethyl-beta-propiothetin, glycine betaine, alanine, adenine nucleotide, sodium diacetate, sodium guanylate and traditional Chinese medicine preparation. The feed is prepared by the steps of stoving, pulverizing, screening, mixing, pelletizing, stoving, sterilizing and the like. The feed synthesizes efficacies of various traditional Chinese medicines, plays the functions of resisting bacterium, diminishing inflammation, enhancing the immunologic function of the body, and the like, can effectively improve the cure rate of the rotten-skin disease of the cyclemys trifasciata and reduce the death rate, reduces the cultivation risk, and improves the economic benefits. The feed is reasonable in preparation and rich in nutrition, so that the feed intake of the cyclemys trifasciata with the rotten-skin disease can be increased, the growth rate is improved, and the growth cycle is shortened; the feed is sterilized at high temperature and high pressure, the time is short, the effect is good, and the retention time is long.

The invention provides Grass carp feed added with algal residues and a preparation method thereof. The algal residues in the feed provided by the invention contain polysaccharides including oligo-fucoidan, fucoidan, laminaran, algin and the like and the polysaccharides can be used for promoting the growth of Grass carp and reducing the feed coefficient. The algal residues contain certain substances with food attraction effect, and dimethyl-beta-propiothetin (DMPT) can be used for increasing the feeding rate of the Grass carp. Furthermore, the algal residues play a role of increasing the content of high-density lipoprotein in blood serum and reducing the content of low-density lipoprotein in the blood serum, and blood lipid health of the cultured Grass carp is facilitated.

The invention discloses a feeding attractant for juvenile procambarus clarkii as well as a preparation method and application of the feed attractant. The feeding attractant comprises the following components in parts by weight: 30-40 parts of lycine, 15-25 parts of kanirin, 15-20 parts of dimethyl-beta-propiothetin and 20-30 of allicin. The preparation method of the feeding attractant comprises the following steps: weighing the components according to the weight parts and then mixing uniformly. The raw materials of the feeding attractant is stable in source and can be taken from a wide range, the production process is simple, the cost is low, and the effect is obvious; from the food intake and digestion mechanism of crustacean, the feeding attractant improves the food intake rate of procambarus clarkia bodies and reduces the waste of baits, simultaneously, the activity of digestive enzymes of the intestines and pancreases of the juvenile procambarus clarkii is improved to promote the growth of the procambarus clarkii.

The invention discloses a feeding promoting agent of sebastodes fuscescens, the ingredients and the weight percentage of which are: 35 to 45 percent of betaine, 25 to 35 percent of inosinicacidIMP, 15 to 20 percent of dimethyl-Beta-propiothetin, 8 to 15 percent of glycine and 5 to 10 percent of sodium citrate; the feeding promoting agent is prepared by that various raw materials used for preparing the feeding promoting agent are dried, grinded, weighed accurately according the dosage and mixed fully and evenly with the coefficient of variation being less than or equal to 5 percent; the feeding promoting agent of feedstuff is applied to the compound feedstuff of the sebastodes fuscescens by the proportion of 0.5 (weight percentage), and can promote the ingestion and the growth of the sebastodes fuscescens with 82.06 percent of the rate of body weight gain, 1.29 percent of specific growth rate and 2.81 percent of ingestion rate; meanwhile, the used raw materials have stable source, low price, simple manufacturing technique and little waste feedingstuff, reduce remnant feed, is beneficial to environmental protection and can carry out the production and the aquaculture of the sebastodes fuscescens on large scale.

The invention discloses a composite phagostimulant for juvenile freshwater shrimps, and a preparation method of the composite phagostimulant. The composite phagostimulant comprises the following raw materials in parts by weight: 10-30 parts of composite Chinese herbal medicines, 10-30 parts of composite amino acids, 5-10 parts of DMPT (dimethyl-beta-propiothetin), 40-50 parts of scallop powder, and 5-10 parts of TMAO (trimethyl amine oxide). The preparation method comprises the following steps of respectively weighing the components according to the formula, respectively drying the components by baking, crushing the dried composite Chinese herbal medicines, the dried composite amino acids, the dried DMPT, the dried scallop powder and the dried TMAO, and uniformly mixing the crushed composite Chinese herbal medicines, the crushed composite amino acids, the crushed DMPT, the crushed scallop powder and the crushed TMAO so as to obtain the composite phagostimulant. The composite Chinese herbal medicine phagostimulant is added to the special compound feed of the freshwater shrimps according to the dosage of 1-3% so as to perform feeding experiment. Compared with the compound feed without adding the composite phagostimulant disclosed by the invention, the composite phagostimulant disclosed by the invention can obviously promote the ingestion of the juvenile freshwater shrimps, can promote the growth of the juvenile freshwater shrimps, can increase digestive enzymes in the bodies of the juvenile freshwater shrimps, can reduce remaining entices and is favorable for environment protection.

The present invention discloses a feed for treating small water turtle saprolegniasis and a preparation method thereof, and belongs to the technical field of terrapin feed processing. The feed includes the following raw materials: pomaceacanaliculata powder, locust powder, pumpkin powder, corn flour, salt, dimethyl-beta-propiothetin, betaine, phenylalanine, adenine nucleotides, sodium diacetate, sodium guanylate and Chinese medicine preparations. The feed is prepared by drying, grinding, sieving, mixing, granulating, drying, sterilization and other steps. The present invention combines the effectiveness of a variety of traditional Chinese medicine, and has effects of resisting to bacteria, diminishing inflammation, clearing away heat and toxic materials, improving immune function and the like. The small water turtles have good absorption efficiency of the feed, the small water turtle mortality rate caused by the saprolegniasis can be effectively reduced, and farming risks are reduced. The feed has reasonable formulation and rich nutrition, can increase intake of the small water turtles with saprolegniasis, can improve growth rate, and can shorten growth period. The preparation method has simple operation and low production costs, and is conducive to application promotion.

The invention relates to the field of feed additives, and in particular to a grouper phagostimulant. The grouper phagostimulant consists of the following substances in parts by weight: 70 to 80 parts of dry animal protein hydrolysate powder, 15 to 25 parts of dimethyl-beta-propiothetin, 5 to 10 parts of glycin, 5 to 10 parts of alanine, 45 to 65 parts of glycine betaine, 8 to 12 parts of taurine, 5 to 10 parts of nucleotide, 5 to 10 parts of allicin, 8 to 12 parts of proline, 45 to 50 parts of rice bran, 5 to 10 parts of antioxidant and 0.8 to 1.5 parts of composite mineral material. The grouper phagostimulant provided by the invention has a good feeding attraction effect on groupers, the grouper phagostimulant is added into fish feed for use, contained amino acid can provide nutritional ingredient needed by growth for fishes, safety is high, and the environment can be protected. The grouper phagostimulant disclosed by the invention is low in protein content, and can enhance resistance and increase the survival rate of juvenile groupers.

The invention discloses ecological feed capable of improving immunity of lobsters. The ecological feed comprises soybean cake, cotton seed cake, corn flour, moringa oleifera powder, domestic fish meal, bone meal, fermented blood powder, compound vitamin, yeast, ecdysone, crustacean meal, protease, soybean isoflavone, glycyrrhizic acid, dextrin, glucose, galacto-mannan-oligosaccharide, spina date seed, folium artemisiae argyi, radix rosae multiflorae, alfalfa meal, herba andrographitis, fructus viticis, herba lycopi, fructus aurantii, corydalis amabilis and dimethyl-beta-propiothetin. The ecological feed is comprehensive in nutrition, reasonable in formulation capable of improving immunity of the lobsters and promoting growth of the lobsters.

The present invention discloses a wattle-necked soft-shell turtle dysentery preventing and treating feed and a preparation method thereof, which belongs to the technical field of turtle feed processing. The feed includes the following raw materials: bone meal, earthworm powder, pumpkin powder, corn flour, edible salt, dimethyl-beta-propiothetin, betaine, threonine, adenine nucleotides, sodium diacetate, guanosine sodium and Chinese herbal medicine preparations. The feed is produced by drying, crushing, screening, mixing, granulating, drying, cooling, packaging and other steps. The wattle-necked soft-shell turtle dysentery preventing and treating feed of the present invention combines the effects of various Chinese herbal medicines, can play roles in preventing bacteria, protecting liver, clearing internal heat, clearing heat and purging intense heat, removing dampness and regulating middle warmer, etc., and enhances the disease resistance, effectively prevents the dysentery and improves the survival rate of the wattle-necked soft-shell turtles. The wattle-necked soft-shell turtle dysentery preventing and treating feed of the present invention has reasonable preparation and strong palatability, and increases the food intake, promotes the growth rate and shorten the growth cycle of the wattle-necked soft-shell turtles.

The present invention discloses feed for preventing and treating wattle-necked softshell turtle hepatitis disease and a preparation method thereof, and belongs to the chelonia feed processing technology field. The feed consists of the following raw materials: livestock and poultry offals, locusts, silkworm chrysalises, pumpkins, bone meal, table salt, dimethyl-beta-propiothetin, betaine, sodium hydrogen di and Chinese herbal medicine preparations. The feed is prepared by drying, crushing, sieving, mixing, granulating, drying, cooling, packaging and other steps. The feed colligates various Chinese herbal medicine efficacies so that the feed can play roles in protecting liver, resisting bacteria and diminishing inflammation, enhancing organism immunity function, etc. A good absorption effect of the Chinese herbal medicine preparations is observed in wattle-necked softshell turtles, and efficacies of the Chinese herbal medicine preparations last for a long time, so that the feed can enhance disease resistance ability, reduce hepatitis disease mortality, reduce breeding risk of wattle-necked softshell turtles, and can improve economic benefits of farmers. The feed is reasonable in preparation and high in palatability, and can increase feed intake and improve growth rate, shorten growth cycle for the wattle-necked softshell turtles.

The present invention discloses a wattle-necked soft-shell turtle hemorrhage preventing and treating feed and a preparation method thereof, which belongs to the technical field of turtle feed processing. The feed includes the following raw materials: ampullaria gigas spix, livestock and poultry leftover, earthworms, grasshoppers, pumpkins, sweet potatoes, corn, dimethyl-beta-propiothetin, betaine, sodium diacetate, disodium 5'-guanylate, edible salt and Chinese herbal medicine preparations. The feed is produced by drying, crushing, screening, mixing, granulating, drying, cooling, packaging and other steps. The wattle-necked soft-shell turtle hemorrhage preventing and treating feed of the present invention combines the effects of various Chinese herbal medicines and can play roles in cooling blood and preventing bleeding, reducing inflammation and promoting tissue regeneration, clearing heat and internal heat, etc. The wattle-necked soft-shell turtles have good absorption effects and long duration of the Chinese herbal medicine preparations, and the feed can enhance the disease resistance of the wattle-necked soft-shell turtles, effectively reduce the probability of wattle-necked soft-shell turtle suffering from hemorrhage, reduce the risk of cultivation, and improve the economic efficiency of raising households. The wattle-necked soft-shell turtle hemorrhage preventing and treating feed has reasonable preparation and strong palatability, and can increase intake, improve growth rate and shorten growth cycle of wattle-necked soft-shell turtles.

The invention belongs to the technical field of plywood processing and in particular relates to a plywood filling agent capable of capturing free formaldehyde. The plywood filling agent is prepared from the following raw materials in parts by weight: 12 to 18 parts of wollastonite powder, 3 to 5 parts of a stellerite molecular sieve, 1 to 2 parts of mirabilite, 18 to 22 parts of tea leaf dreg powder, 1.8 to 2.6 parts of aromatic hydrogen oil, 6 to 10 parts of polycarbonate diol, 2 to 4 parts of dimethyl-beta-propiothetin and 22 to 26 parts of corn husk puffed ultra-micro powder. Compared withthe prior art, the plywood filling agent has the following advantages that the filling agent is reasonably matched and the initial viscosity of resin is increased; the utilization of cereal crops is reduced and mildewing is avoided; the corn husk puffed ultra-micro powder, the stellerite molecular sieve and the mirabilite have a synergistic effect and can be used for effectively absorbing the freeformaldehyde, so that the plywood filling agent is suitable for being popularized.

The invention relates to a feed additive for enhancing immunity of yellow catfish, which is prepared from, by weight, 5-8 parts of L-lysine, 1-3 parts of magnesium acetate, 1-3 parts of organic selenium, 1-3 parts of trehalose, 2-5 parts of taurine, 5-8 parts of calcium pantothenate, 8-12 parts of creatine monohydrate, 5-8 parts of L-citrulline, 3-6 parts of sodium propionate, 2-5 parts of zinc gluconate, 5-8 parts of calcium hydrophosphate, 3-6 parts of calcium glycinate, 3-6 parts of pyridoxamine, 2-5 parts of folic acid, 2-5 parts of choline chloride, 5-8 parts of betaine, 2-4 parts of dimethyl-beta-propiothetin, 2-5 parts of sodium chloride, 2-5 parts of inositol, 1-3 parts of vitamin A, 1-3 parts of vitamin B, 5-8 parts of vitamin C, and 2-5 parts of vitamin E. The feed additive can effectively improve the diseases prevention and resistance effect of the yellow catfish and can enhance immunity.

The invention discloses a feed for treating a red neck disease of cyclemys trifasciata and a preparation method of the feed, and belongs to the technical field of testudinate feed processing. The feed comprises the following raw materials: earthworm powder, locust powder, pumpkin powder, sweet potato powder, salt, dimethyl-beta-propiothetin, glycine betaine, threonine, adenine nucleotide, sodium diacetate, sodium guanylate and traditional Chinese medicine preparation. The feed is prepared by the steps of stoving, pulverizing, screening, mixing, pelletizing, stoving, sterilizing and the like. The feed synthesizes efficacies of various traditional Chinese medicines, and plays the functions of resisting bacterium, diminishing inflammation, enhancing the immunologic function of the body, and the like. The feed absorbing effect of the cyclemys trifasciata is good, the duration time is long, the disease resistance of the cyclemys trifasciata can be improved, the death rate of the cyclemys trifasciata due to the red neck disease can be effectively reduced, and the cure rate of the red neck disease of the cyclemys trifasciata can be improved. The feed is reasonable in preparation and rich in palatability, so that the feed intake of the cyclemys trifasciata with the red neck disease can be increased, the growth rate is improved, and the growth cycle is shortened.

The invention discloses a tilapia attractant, as well as a preparation method and an application thereof. The tilapia attractant is prepared from the following raw materials in parts by weight: 8-16 parts of aniseeds, 10-14 parts of herb of lysimachia capillipes, 6-10 parts of laver, 7-15 parts of liquorice roots, 4-8 parts of hawthorn fruits, 2-6 parts of purslane, 4-6 parts of garlic, 2-4 parts of cinnamon, 20-30 parts of dimethyl-beta-propiothetin, 15-23 parts of betaine, 5-10 parts of nucleotide, 0.6-1 part of sweetening agent, 0.2-0.5 part of flavoring agent, 1-3 parts of sour agent, 0.4-0.8 part of spicy agent, and 0.3-0.6 part of flavor enhancer. The tilapia attractant is prepared by the following steps: removing water, extracting liquid medicines, carrying out mixing, and so on. Being applied in feeds, the tilapia attractant disclosed by the invention is capable of effectively promoting digestion and absorption capacities of the tilapia on the feeds, improving food intake rates and palatability of the tilapia to indigestible feeds, as well as enlarging application ranges and usage amounts of unconventional feed raw materials.

The invention discloses a siniperca chuatsi feed phagostimulant and a preparation method thereof. The siniperca chuatsi feed phagostimulant added to each kilogram of feed is prepared from the following raw materials by weight: 2.0g of animal liver extract, 0.2-0.5g of dimethyl-beta-propiothetin, 0.5-2.0g of trimetlylamine oxide, 0.2-0.5g of L-glycine, 20-25g of hypoxanthine nucleotide, 0.5-3.0g ofbetaine, 10-15g of L-alpha-alanine and 10-15g of cuttlefish viscera powder. The preparation method of the phagostimulant is as follows: taking the betaine, sequentially adding the animal liver extract, the dimethyl-beta-propiothetin, the trimetlylamine oxide, the L-glycine, the hypoxanthine nucleotide, the alanine and the cuttlefish viscera powder, conducting full uniform mixing once finishing adding one raw material, and finally conducting full uniform mixing. The phagostimulant is reasonable in formula, can improve the feeding rate, feeding-taming survival rate and weight gain rate of siniperca chuatsi, and can reduce feed coefficient. The preparation method of the phagostimulant is simple, and is convenient to operate and low in preparation cost.

The invention discloses a feed for treating a fatty liver disease of turtles and a preparation method thereof, and belongs to the technical field of turtle feed processing. The feed is prepared from, by weight, 30-50 parts of silkworm pupa meal, 50-70 parts of manihot utilissima powder, 8-16 parts of table salt, 6-14 parts of dimethyl-beta-propiothetin, 5-9 parts of betaine, 4-8 parts of glycine, 4-8 parts of cytidylic acid, 0.2-0.6 part of Tomatin polypeptide, 1-3 parts of citronellal and 15-42 parts of traditional Chinese medicine preparation. The feed is prepared through the steps of drying, smashing, screening, liquid medicine extracting, concentrating, mixing, pelletizing, sterilizing and the like. According to the feed for treating the fatty liver disease of the turtles, the effects of multiple traditional Chinese medicines are synthesized, the effects of resisting bacteria, diminishing inflammation, enhancing the body immune function and the like can be achieved, the cure rate of the fatty liver disease of the turtles can be effectively increased, and the death rate of the fatty liver disease of the turtles can be effectively decreased; the feed is reasonable in preparation, rich in nutrition and capable of increasing the feed intake of the turtles suffering from the fatty liver disease and increasing the growth speed.

The present invention relates to a pelteobagrus fulvidraco attractant improving feed utilization and a preparation method thereof. The pelteobagrus fulvidraco attractant comprises the following raw materials according to parts by weight: 1-12 parts of black rice, 1-15 parts of taurine, 1-12 parts of glycine, 1-15 parts of haws, 1-12 parts of glutamic acids, 5-20 parts of S-S-dimethyl-beta-propiothetin, 1-12 parts of portulaca oleracea, 40-80 parts of flour, 5-20 parts of stevioside, 1-12 parts of garlics, 1-12 parts of alanine and 1-8 parts of fennels. The black rice, haws, portulaca oleracea, garlics and fennels are subjected to course powder preparing, the prepared course powder is mixed using a 40-60-mesh screen, then the taurine, glycine, glutamic acids, S-S-dimethyl-beta-propiothetin, flour, stevioside and alanine are added, the mixture is mixed continuously, and the mixture is granulated to obtain the attractant. The attractant promotes the feed intake of the pelteobagrus fulvidraco, improves the feed efficiency, lowers the costs, alleviates the water quality pollution, is convenient in use and non-toxic, improves the bad odor in the feed, improves the palatability of the feed, and promotes the absorption and digestion of the pelteobagrus fulvidraco for the artificial feeds.

The present invention discloses feed for preventing and treating wattle-necked softshell turtle parotitis and a preparation method thereof, and belongs to the chelonia feed processing technology field. The feed consists of the following raw materials: AmpullariagigasSpix, livestock and poultry offals,earthworms, pumpkins, sweet potatoes, dimethyl-beta-propiothetin, betaine, L-threonine, vitamin B8, sodium hydrogen di, table salt and Chinese herbal medicine preparations. The feed is prepared by drying, crushing, sieving, mixing, granulating, drying, cooling, packaging and other steps. The feed colligates various Chinese herbal medicine efficacies so that the feed can play roles in clearing away heat and toxic material, resisting bacteria and diminishing inflammation, removing dampness, regulating immune function of the wattle-necked softshell turtles, etc. The feed can enhance disease resistance abilities, effectively prevent and treat parotitis, and improve survival rates. The feed is reasonable in preparation and high in palatability, and can increase feed intakes and improve growth rates, shorten growth cycles of the wattle-necked softshell turtles.

The present invention discloses feed for preventing and treating wattle-necked softshell turtle red spot disease and a preparation method thereof, and belongs to the wattle-necked softshell turtle feed processing technology field. The feed consists of the following raw materials: bone meal, locust powder, pumpkin powder, sweet potato powder, table salt, dimethyl-beta-propiothetin, betaine, phenylalanine, guanine, sodium hydrogen di, disodium 5'-guanylate and Chinese herbal medicine preparation. The feed is prepared by drying, crushing, sieving, mixing, granulating, drying, cooling, packaging and other steps. The feed can play roles in resisting bacteria and diminishing inflammation, clearing away heat and detoxifying the body, cooling the blood and eliminating edema, promoting digestion, improving body immunity, effectively preventing and treating the wattle-necked softshell turtle red spot disease, and reducing mortality of the wattle-necked softshell turtle with the comprehensive utilization of various Chinese herbal medicine efficacies. The feed is reasonable in preparation and high in palatability, and can increase feed intake and improve growth rate, shorten growth cycle for the wattle-necked softshell turtle.

The invention relates to a method for preparing dimethyl-beta-propiothetin (DMPT), and relates to the technical field of organic chemistry. The invention adopts a two-step synthesis method comprising the following steps: firstly, preparing beta-dimethyl mercaptopropionic acid chloride from chloropropionic acid and dimethyl sulfide; and then adding sodium bicarbonate for reaction, and recrystallizing and drying to obtain the DMPT. The invention adopts a unique synthesis method, wherein a yield of an intermediate product synthesized in a first step is 65-84%, and the purity of the product DMPT after purification can reach 96%; and the method provided by the invention is high in purity of the product, simple in synthesis step and suitable for popularization and application.

The invention provides an aquatic feed attractant. The aquatic feed attractant comprises, in a total percentage by mass of 100%, 40-50% of a yeast extract, 5-10% of dimethyl-beta-propiothetin (DMPT),20-30% of trimethylamine N-oxide (TMAO), 5-10% of bile salts and 10-20% of filler. By compounding a plurality of single attractants with the bile salts with the functions of promoting digestion, protecting the livers and promoting bile flow, the aquatic feed attractant has very good attracting and digestion-promoting effects on aquatic animals. Being added into aquatic feeds, the aquatic feed attractant provided by the invention is capable of effectively promoting digestion and absorption of feeds for the aquatic feed attractant contains the bile salts. The aquatic feed attractant provided bythe invention is high in safety, free of toxic and harmful substances and low in addition amount; moreover, the selected raw materials are stable and controllable in quality, so that the prepared aquatic feed attractant is wide in application ranges.

The invention discloses a phagostimulant for promoting crab food taking. The phagostimulant comprises the following raw materials in parts by weight: 5-9 parts of fennel, 2-6 parts of L-lysine, 4-7 parts of bile salts, 5-8 parts of trimethylamine oxide, 2-5 parts of dimethyl-beta-propiothetin, 6-9 parts of coconut oil, 7-10 parts of compound amino acids, 4-8 parts of lemongrass herb powder, 9-12 parts of stevioside, 2-4 parts of lysine, 6-10 parts of seaweed extractive, 1-3 parts of dried orange peel and 7-10 parts of Chinese bayberry extractive. The phagostimulant can effectively promote feeddigestion and feed absorption of crabs, and the phagostimulant has the advantages of high safety, no toxic or harmful substances, high efficiency with trace usage, and wide application range of products.