357results about How to "Improve antioxidant function" patented technology

The invention discloses an anti-stress anti-diarrhea growth-promotion Chinese herbal medicine feed additive for a weaned pig, which is obtained by carrying out the superfine grinding and mixing on the following components at the mass ratio: 1-5 parts of Astragalus mongholicus, 1 part of Scutellaria baicalensis, 1 part of malt, 1 part of liquorice, 1-5 parts of dangshen, 1-5 parts of poria cocos and 1-5 parts of largehead atractylodes rhizome. According to the Chinese herbal medicine feed additive disclosed by the invention, the weaned pig growth performance can be improved, and the Chinese herbal medicine feed additive has the anti-diarrhea effect; the gastrointestinal tract development of the weaned pig can be promoted; the activity of the digestive enzyme of the gastrointestinal digestive tract of the wigged pig can be improved to promote the development of the pig digestive enzyme system; the micro-ecological environment of the digestive tract of the pig can be regulated and stabilized to accelerate the pig to grow; the antioxidation function of the wigged pig organism can be improved so as to improve the compensatory capability of the wigged pig organism on external irradiation; the intestinal mucosa form of the wigged pig can be improved so as to alleviate the intestinal villus withering of the wigged pig and promote the tract of the wigged pig to restore; and the immunologic function of the intestinal mucosa of the wigged pig can be regulated.

The invention discloses a combination used for preventing and treating newborn piglet diarrhea and a preparation method and application thereof. In percent by weight, the product comprises 88-98% of attapulgite ultra-fine powder, 0.1-3% of organic acid, 0.1-4% of probiotic, 0.05-2% of oligosaccharide, 0.05-1.5% of vitamin C and 0.15-3% of crane sugar. The combination disclosed by the invention isdiluted into solution with the mass fraction of 0.05-3% with drinking water, the solution is used for feeding a piglet in an oral or drinking water manner, and the newborn piglet diarrhea caused by multiple factors can be effectively prevented and treated, thus the combination has the effects of improving immunocompetence of the piglet, improving antioxidant function, regulating intestinal microecology and protecting intestinal shape and can improve survival rate of the piglet, improve production performance of the piglet and relieve weaned stress on the piglet. The combination disclosed by the invention also has the characteristics of simple and convenient application mode, high efficiency, available raw materials, simple preparation and the like.

The invention provides yak bone protein peptide with DPP-IV inhibitory activity and a preparation method thereof. The yak bone protein peptide provided by the invention is optimally prepared from the enzymolysis products by conducting multiple-step enzymolysis by multilevel compound protease on the yak bone protein prepared from yak bone, and the compound protease contains alkali protease, neutral proteinase, trypsin and flavourzyme. The yak bone protein peptide provided by the invention has excellent DPP-IV inhibition and antioxidation functions, and can be used as a DPP-IV inhibitor and antioxidation raw material to be applied to special foods and nutritional foods.

The present invention relates to a full-nutrients balanced stuffing and dumplings made of said full-nutrients balanced stuffing. Said full-nutrients balanced stuffing is made up by using pork fillet, chicken breast, shrimp meat and egg-white as main raw material and adding water, edible mushroom, algae, nutmeat, fruit, vegetable, salad oil, ginger, salt, sesame oil, granulated chicken bouillon and monosodium glutamate as auxiliary raw material through a certain preparation process.

The invention discloses a low-protein weanling piglet feed which comprises the following raw materials: corns, bean pulp, calcium hydrogen phosphate, dried porcine soluble, fermented bean pulp, fish meal, soybean oil, a premix, sodium chloride, phytase, a compound antioxidant, a compound acidifier, a compound enzyme preparation, a microecological preparation, limestone, L-lysine hydrochloride, L-threonine, DL-methionine, L-tryptophan and a compound traditional Chinese medicine preparation. According to the feed, the crude protein content of piglet full-price daily ration is reduced to 16% from 19%; the compound acidifier, the compound enzyme preparation, the microecological preparation and the compound traditional Chinese medicine preparation are added, so that the immunity of piglets is comprehensively improved and the use of antibiotic drugs is reduced; low-protein high-growth piglet ration is prepared, so that the misunderstanding to the feed consumption caused by farmers is eliminated, the low-protein ration formula technology is really popularized in local, the use of protein raw materials and the diarrhea of the piglets are reduced, and the cost and the N discharge are reduced.

The invention relates to a preparation method of a yak bone protein peptide capable of relieving fatigue and resisting oxidation and the protein peptide prepared therefrom. The preparation method is characterized in that yak bone protein liquid is pretreated by high-frequency ultrasonic wave, ultra-high pressure micro-jet and the like, and then subjected to enzymolysis step by step using various complex proteases without adding any acid or alkali, and finally separated by membrane separation, gel separation and reverse phase HPLC separation techniques. The preparation method of the yak bone protein peptide is simple. No acid or alkali is added for pH adjustment in the whole processing process, so that a product maintains good functional characteristics, and industrial production is easilyachieved.

The invention relates to a compound feed additive for piglet growth promotion and immunity enhancement. The feed additive comprises 65-75wt% of a traditional Chinese medicinal compound, 5-10wt% of a feed compound enzyme, 10-20wt% of a micro-ecologic preparation and 5-10wt% of yeast cell wall. The feed additive can improve the feed conversion rate, promote the piglet growth, adjust the immune function, enhance the disease resistance ability and reduce the piglet diarrhea rate.

The invention relates to a traditional Chinese medicine preparation for promoting lactation of pregnant sows, which is composed of astragalus, angelica, Codonopsis pilosula, Rhizoma Chuanxiong, Wang Buliuxing, Passepartout, motherwort and Cyperus cyperi. Significantly increase the serum prolactin (PRL) and growth hormone (GH) levels of lactating sows, promote the lactation performance of sows; increase the protein content in colostrum, promote the growth and development of sucking piglets; increase the serum complement C3 and immunoglobulin of sucking piglets (IgG, IgM, IgA) content and superoxidase (SOD) activity, reduce malondialdehyde (MDA) content, improve immune function and antioxidant function of suckling piglets.

The invention discloses a composition with an auxiliary protection effect on an alcoholic liver injury and a preparation method of the composition. The composition with the auxiliary protective effect on the alcoholic liver injury is mainly prepared from the following raw materials in parts by weight: 57.5-172.5 parts of kudzuvine root extract, 22.5-67.5 parts of semen hoveniae extract, 35-105 parts of salvia miltiorrhiza extract, 18-57 parts of turmeric extract and 7.5-22.5 parts of ammonium glycyrrhetate. The raw materials respectively have anti-lipid peroxidation effect and protective effect on the liver. Functional tests show that the composition with the auxiliary protection effect on the alcoholic liver injury has better liver protection effect compared with the same dose of single kudzuvine root extract preparation and single semen hoveniae extract preparation, and liver fatty degeneration and liver lipid peroxidation which are caused by the alcoholic liver injury can be obviously alleviated. The composition with the auxiliary protection effect is prepared by adopting a scientific and reasonable production process, is definite in functions, controllable in quality and safe to take and is applicable to a large group of people suffering from the alcoholic liver injury.

The invention discloses mint-scented compound essential oil and a feed additive containing mint-scented compound essential oil and production and application thereof, and relates to the technical field of feed nutrition and feed additive production. The mint-scented compound essential oil is prepared by using Asian mint oil, cineole, cinnamaldehyde, eugenol, carvacrol, menthol and thymol as raw materials, putting the above raw materials into an enamel reaction kettle or a stainless steel reaction kettle sequentially, and evenly stirring and mixing the above raw materials. Preparation method 1:stirring and mixing the compound essential oil and anhydrous alcohol or propylene glycol in the stainless steel reaction kettle according to a weight ratio, with the addition of polyoxyethylene castor oil emulsifiers, thereby obtaining a feed additive containing liquid mint-scented compound essential oil. Preparation method 2: stirring and mixing the compound essential oil and dry starch in a high-speed mixer according to a weight ratio, thereby obtaining a feed additive containing solid mint-scented compound essential oil. Preparation method 3: stirring and mixing the compound essential oiland beta-cyclodextrin or soluble starch in the high-speed mixer according to a weight ratio, with the addition of Tween-80 emulsifiers, thereby obtaining a feed additive containing water-soluble mint-scented compound essential oil.

The invention provides fish-skin protein peptides with an antioxidation function. The amino acid sequences of the fish-skin protein peptides are respectively as shown in SEQ ID No. 1 and SEQ ID No. 2. Based on the characteristics of fish-skin proteins, fish-skin protein peptide powder is prepared from fish skin through ultrasonic pretreatment, high-temperature high-pressure pretreatment, step-by-step enzymatic hydrolysis via a plurality of proteases and separation technologies including membrane separation, gel separation and high-performance liquid chromatographic separation, and the fish-skin protein peptides as shown SEQ ID No. 1 and 2 account for 50% or more of the total weight of the fish-skin protein peptide powder; so a simple high-efficiency preparation method for the fish-skin protein peptides with the antioxidation function is established.

The invention discloses tendering and whitening functional electronic cigarette liquid. The electronic cigarette liquid mainly comprises the following components in percentage by weight: 6 to 15 percent of dried fruit top dressing, 40 to 70 percent of propylene glycol, 10 to 15 percent of pure water and 4 to 13.5 percent of tendering and whitening medicament. Because the tendering and whitening functional electronic cigarette liquid of the invention contains the tendering and whitening medicament, the electronic cigarette liquid has the effects of resisting oxidation, delaying aging of skin and suppressing chromatosis.

The invention belongs to the technical field of feed composition and particularly relates to feed used for 72-100-week-old laying hens and capable of improving the immune function and a preparation method of the feed. The feed for the laying hens is prepared from raw materials in parts by weight as follows: 53-60 parts of grains, 5-20 parts of soybean meal, 1-5 parts of corn gluten meal, 3-5 parts of sesame seed meal, 5-10 parts of a corn byproduct, 3-10 parts of fruit and vegetable dregs, 0.35-1.2 parts of amino acid, 0.02-0.06 parts of beta-carotene, 0.05-0.1 parts of lutein, 0.05-0.1 parts of a complex enzyme preparation, 0.05-0.1 parts of probiotics, 0.01-0.07 parts of zinc proteinate and 0.01-0.03 parts of phytase. The feed can remarkably improve the immune function and the disease resistance of the laying hens in the later period of egg laying, the death rate of the laying hens in the later period is reduced by 9.3%, the number of eggs laid by each hen is increased by more than 15 in the egg laying period, people can earn more 6.6 Yuan, and the economic benefit of a chicken yard is remarkably improved.

The invention relates to the field of a feed additive, particularly relates to a selenium-rich feed additive and a preparation method of the feed additive. The selenium-rich feed additive is cardamine hupingshanensis dry powder with the selenium concentration being 1700-2500ppm. The preparation method of the selenium-rich feed additive comprises the following steps of: transplanting and cultivating cardamine hupingshanensis plant with turfy soil as matrix; carrying out root-irrigation with sodium selenite with the concentration being 250-500ppm after transplanting and cultivating for two months; 20 days before bolting, mixing sodium selenite with the concentration being 300-700ppm and gibberellins with the concentration being 50-90ppm and spraying the mixture to cardamine hupingshanensis plant; and drying and sterilizing the pure cardamine hupingshanensis plant at 80-110 DEG C, then crushing to obtain selenium-rich cardamine hupingshanensis dry powder with the selenium concentration being 1700-2500ppm. The selenium-rich feed additive can enhance the ability of livestock and poultry, thereby preventing disease, improving immune ability and oxidation resistance of livestock and poultry, improving the egg yield and milk yield of animals, and prolonging the period of egg laying and milk producing products; moreover, the feed additive is safe and non-toxic.

The invention relates to a drinking type acidulant and a preparation method and application thereof. Each 100ml of the acidulant contains components of 15-25ml of formic acid, 25-35ml of lactic acid,15-25g of citric acid, 5-15g of fumaric acid, 1-8g of calcium formate, 1-8g of sodium butyrate and the balance deionized water, wherein all of the components are 100ml. The preparation method comprises the following steps of performing injection according to the amount of 50-80% of the total amount of water to a stirring tank, starting a power supply, performing stirring at 120r / min, slowly addingthe fumaric acid, then adding the calcium formate and the sodium butyrate, performing stirring for 15min, after the fumaric acid, the calcium formate and the sodium butyrate sufficiently dissolve inthe water, slowly adding the citric acid, the lactic acid and the formic acid separately, and finally, adding the remaining water for uniform stirring so as to obtain products. Compared with the priorart, the drinking type acidulant contains various organic acid and organic acid salts, can regulate the acid of a ration system, can reduce the pH value of the digestive tracts of animals, can improve the activity of digestive enzymes, can promote the digestion of nutrient substances, can effectively control diarrhoea of piggies at the weaning and child care period, can regulate the intestinal microecology balanced, and can promote growth of the piggies at the weaning and child care period. Besides, when the drinking type acidulant is drunk, growth and propagation of pathogenic microorganismsin animal organisms, feeds and environment can be greatly reduced, and the usage amount of antibiotics can be directly reduced, so that drug tolerance, remaining and pollution problems caused by antibiotics can be reduced.

The antioxidant nutritious various-grain flour is a mixture comprising high gluten wheat flour 70-85 wt%, various-grain flour 10-25 wt%, buckwheat flavone extract 0.1-0.5 wt% and superfine oat bran powder 3-8 wt%. The various-grain flour is produced with buckwheat, oat, kaoliang, corn and / or beans. The antioxidant nutritious various-grain flour has improved taste, raised quality and obvious antioxidant activity, and is detected to have free radical clearance rate IC50 lower than 1.0x10<-2> g and total oxidation resistance higher than 100 mmol / g, 15 times and 5.95 times higher than that of common high gluten wheat flour separately.

The invention relates to compound vitamin nanoemulsion belonging to the technical field of pharmacy. Every 1000 ml of nanoemulsion is prepared by the method comprising the following steps of: fully mixing 35-50g of AEO-9 or AEO-4, 150-200g of tween-80, 16-22g of phenylcarbinol and fat-soluble active ingredients at 30-60 DEG C to prepare an oil phase; adding water to dilute the oil phase; adding water-soluble active ingredients; evenly mixing; adding water to dilute and confirm solution contents and adding water to dilute to a volume, wherein the fat-soluble active ingredients comprise 6-18 million IU of vitamin A, 1.8-4.8 million IU of vitamin D3 and 2.5-7.5g of vitamin E, and the water-soluble active ingredients comprise 1-4g of vitamin B1, 0.2-1.0g of vitamin B2, 1.6-4.2g of vitamin B6, 5-25g of barberry extractive and 30-60g of amino acid. The product is clear and transparent, has good stability, slow-release effect, persistent drug effect, great specific surface area of nanoemulsion particles and good system compatibility, can obviously improve the drug absorption rate and the bioavailability and can be compounded with various useful elements besides vitamins.

The invention discloses a microorganism feed supplement for lowering the stress of piglets and a preparation method thereof. The preparation method comprises the specific steps of fermenting bacillus subtilis, lactobacillus plantarum and saccharomyces cerevisiae with a medium and raw materials such as sterile water, carrying out spray drying on fermentation liquor, then mixing with a protective agent so as to prepare the finished product. The preparation method has the characteristics that the production is simple, the raw materials are easy to obtain, and the production cost is low; the feed supplement can improve the antioxidant ability of early weaned piglets, improve the antioxidant ability of hepatic cells of piglets, lower the stress reaction of early weaned piglets and transferred piglets, reduce intestinal tract and respiratory diseases, and lower the diarrhea rate of early weaned piglets, so that the daily gain of the early weaned piglets is improved and increased, the feed conversion efficiency is improved, and the anti-stress ability of the piglets is improved comprehensively.

The invention discloses a method for producing a functional microbial fermented feed. The method uses soybean meal, fulvic acid powder, corn syrup powder, wheat bran, rice bran powder and Chinese herbal medicines including Sichuan phellodendron bark powder, powder of coptidis roots from Sichuan of China, scutellaria root powder, astragalus root powder, and isatis root powder as fermentation raw materials, and uses bacillus subtilis, bacillus licheniformis, lactococcus lactis, and brewer's yeast mud as beneficial microbial flora. The seed liquids of bacillus subtilis, bacillus licheniformis andlactococcus lactis, and the brewer's yeast mud are mixed with the fermentation raw materials in proportion, and the mixture is subjected to four stages including aerobic fermentation, anaerobic fermentation, sterile air fermentation and anaerobic fermentation to obtain the functional microbial fermented feed. The product of the invention is rich in nutrients, has good attracting property, and good disease resistance and disease prevention effects, and obviously promotes the growth effect of cultured animals. At the same time, the functional microbial fermented feed can also improve the breeding environment and purify water, and is a green, safe and efficient functional microbial fermented feed.

The invention discloses a fish anti-oxidation active peptide which belongs to the field of processing of aquatic foods and has an amino acid sequence of Asn-Trp-Asp-Asp-Met. The peptide can be artificially synthesized and can also be prepared from fish which is taken as a raw material. The preparation comprises the steps of preparing the fish into fish slurry, then performing enzymolysis with an alkaline protease, centrifuging and taking supernatant fluid; performing ultrafiltration on the supernatant fluid by utilizing a ceramic membrane with the bore diameter of 3000 Daltons, performing Sephadex G-25 gel separation and collecting a second elution peak; further purifying by high performance liquid chromatography; finally concentrating, freezing and drying. The fish anti-oxidation active peptide disclosed by the invention has a good anti-oxidation function and high capability of clearing DPPH free radicals of above 90%; secondly, the fish anti-oxidation active peptide disclosed by the invention is a product obtained by performing enzymolysis on a natural product as a raw material with the food-grade alkaline protease and is safe and non-toxic; the preparation method disclosed by the invention is simple, and the problem that an existing anti-oxidant polypeptide is difficult to realize industrial production.

The invention discloses an application for a drone pupae polypeptide extract, comprising an application for the drone pupae polypeptide extract as a food with a function of memory improvement and / or antioxidation, or for preparing a food with a function of memory improvement and / or antioxidation; an application for the drone pupae polypeptide extract as a healthcare product with a function of memory improvement and / or antioxidation, or for preparing a healthcare product with a function of memory improvement and / or antioxidation; and an application for the drone pupae polypeptide extract for preparing a medicine with a function of memory improvement and / or antioxidation. The drone pupae polypeptide extract has a function of obviously improving memory and a better antioxidation effect, thereby being used as products with a function of memory improvement and / or antioxidation, or for preparing products with a function of memory improvement and / or antioxidation.

The invention relates to Chinese herbal medicine compound feed for improving meat quality of table poultry and a preparation method thereof, steamed glossy privet fruits with wine are dried at the temperature of 65 DEG C till being constant in weight, shelled, crushed, sieved by an 80-mesh sieve and uniformly added into basic ration for the table poultry according to 1% by weight, and each part of the basic ration for the table poultry comprises 59.62-68.19kg of corn, 24.00-31.50kg of soybean meal, 1.50-4.00kg of fish meal, 2.00-3.50kg of soybean oil, 0.10-0.30kg of common salt, 1.10-1.30kg of calcium hydrophosphate, 1.10-1.35kg of stone dust, 0.05-0.2kg of methionine, 0.10kg of choline chloride, 0.02-0.03kg of compound vitamins, and 0.2-0.3kg of compound trace elements. Sources of raw materials used in the method are wide, the adding effect is obvious, and the Chinese herbal medicine compound feed can simultaneously improve the growth performance of the table poultry, improve the anti-oxidation mechanism of muscles and obviously improve the meat quality of the table poultry.

A Chinese-medicinal forage additive in the form of superfine powder for the delactated piglet is prepared from astragalus root, acanthopanax bark, pilose asiabell root, haw, red sage root, and oligochitose. Its preparing process is also disclosed.

The invention provides a natural plant sun cream which comprises the following main ingredients: water, glycerin, isooctyl palmitate, an aloe extract, a scutellaria baicalensis extract, a myrica rubra extract, fatty alcohol, bisabolol, polydimethylsiloxane and the like. The invention also provides a method for preparing the natural plant sun cream, and the method comprises the following steps of: putting glycerin, aloe extract, scutellaria baicalensis extract, myrica rubra extract, and water into an aqueous-phase pot, heating the obtained mixture until the obtained mixture is completely dissolved so as to obtain an A-phase matter; putting isooctyl palmitate, fatty alcohol, bisabolol, polydimethylsiloxane, cetyl polyethylene glycol / polypropylene glycol-10 / 1-dimethyl silscone, methylparaben and propyl hydroxybenzoate into an oil-phase pot, heating the obtained mixture until the obtained mixture is completely dissolved so as to obtain a B-phase matter; taking the essence as a C-phase matter; pumping the B-phase matter into a main emulsifying pot, and slowly pumping the A-phase matter into the emulsifying pot within 15-20 minutes under the condition of stirring; homogenizing the obtained product for 3 minutes; carrying out constant-temperature stirring on the obtained product for 30 minutes; after the obtained object is cooled, adding the C-phase matter into the obtained object, uniformly stirring the obtained mixture, and ageing the obtained product for 24 hours so as to obtain the sun cream.

The invention relates to a disease resistance-promoting feed for an egg producing period of hens and a preparation method thereof. The feed is prepared from the following raw materials in parts by weight: 10-20 parts of oat, 8-20 parts of bean pulp, 2-6 parts of corn protein powder, 1-5 parts of sesame seed meal, 1-5 parts of chili slag, 0.5-1.5 parts of rice bran oil, 1-5 parts of gardenia fruit pomace, 0.03-0.1 part of hydrolysable tannins, 0.025-0.1 part of Perstorp SR130, 0.01-0.03 part of beta-carotene, 0.1-0.2 part of natural xanthophyll, 0.001-0.05 part of carnitine, 0.03-0.08 part of glycine betaine, 0.05-0.1 part of probiotics, 0.05-0.1 part of a complex enzyme preparation, 0.01-0.12 part of a mycotoxin adsorbent and 1-2 parts of mixed yeast of oat bran and wheat fibers. The disease resistance-promoting feed for the egg producing period of hens has the effects of obviously promoting the immunological functions of the hens, promoting the intestine health and enhancing the disease resistance.

The invention discloses an additive for preventing and treating urinary stone and hematuresis of a fattening sheep. The additive is prepared from 1.5 to 20 parts by mass of Japanese climbing fern spore, 2.2 to 30 parts by mass of christina loosestrife, 1.0 to 10 parts by mass of small centipeda herb, 1.2 to 15 parts by mass of spicate clerodendranthus herb, 0.7 to 10 parts by mass of chicken's gizzard-membrane, 0.7 to 10 parts by mass of plantain, 2.2 to 30 parts by mass of corn stigma, 0.5 to 10 parts of mirabilite, 1.1 to 20 parts by mass of lotus rhizome node, 1.1 to 12 parts by mass of unprocessed rehmannia root, 0.5 to 10 parts by mass of VE, 1.0 to 12 parts by mass of VA, 0.7 to 10 parts by mass of VD and 0 to 22 parts by mass of zeolite powder. A preparation method of the additive comprises the following steps of crushing the Chinese herbal medicines, uniformly mixing the crushed Chinese herbal medicines, VE, VA, and VD, mixing the mixture, and uniformly mixing. The additive isused for preventing and treating urinary stone and hematuresis caused by high-concentration feed fattening, can avoid stone precursor formation, can effectively decompose and discharge stones, and has effects of cooling blood, effectively preventing and treating hematuresis, improving body immunity and oxidation resistance, effectively preventing and treating urinary stone of a fattening sheep, reducing an economic loss of a farmer and guaranteeing safe production and low carbon production of mutton.

The invention discloses a preparation method of honey and chrysanthemum alcoholic drink and a product prepared by the preparation method, and aims to solve the problems that as the conventional chrysanthemum wine is extracted and prepared by modes of soaking or fermentation and the like, functional ingredients in chrysanthemum are not extracted or utilized effectively, physiological activity of the chrysanthemum are not played well, the conventional chrysanthemum wine is single in variety, chrysanthemum is generally used as an ingredient, and the alcoholic content is generally high. Chrysanthemum morifolium is used as a main raw material, an ultrasonic extraction technology is used, extraction efficiency of the functional ingredients of the chrysanthemum is improved, meanwhile, honey is used as an auxiliary material, and the functional ingredients of the chrysanthemum and the honey are blended with base liquor, so that the honey and chrysanthemum alcoholic drink with a certain healthcare function is prepared. Plant components in the chrysanthemum morifolium are extracted in a targeted manner, the content of chlorogenic acid is taken as a standard, an extraction technology is optimized, so that ingredients in the chrysanthemum morifolium are fully utilized, and the quality of the product is guaranteed. Meanwhile, the honey and chrysanthemum alcoholic drink is short in production period, time is saved, energy is also saved, efficiency is high, and utilization efficiency of the chrysanthemum morifolium which is used as a medicine-food resource is improved effectively.

The invention provides a method for preparing Chinese medicinal herb feed additive having the characteristics of low price, simple production and use, small adding amount, obvious adding effect, no adverse reaction and the like and capable of improving stress resistance of pigs. The method for preparing the Chinese medicinal herb feed additive for improving the stress resistance of the pigs comprises the following steps of: crushing glossy privet fruits with a sieve of 60 meshes, then drying the glossy privet fruits at the temperature of between 50 DEG C, and uniformly adding 1 percent of glossy privet fruits into feed of weaning piglets, growing pigs and fattening pigs. The method can improve the growing speed of the pigs to a certain degree, improve the in vivo lipid metabolism, improve the oxidation resistant function in the pig bodies and improve the quality of pork, and can be applied to pig raising production practices by partially substituting antibiotics (colistine sulfate), so the method has certain practice significance for modernized research and further development of substituting for the antibiotic feed additive.

The invention provides an application of mulberry leaf extract in inhibiting freshwater fish farming stress, a feed, and a preparation method of the feed. A preparation method of the mulberry leaf extract comprises: drying and crushing mulberry leaves, adding cyclohexane for extraction, filtering, extracting with ethyl ether, filtering, and distilling the filtrate under reduced pressure to constant weight. The invention further provides a ratio of the mulberry leaf extract in an anti-stress feed and the preparation method of the feed. By applying the mulberry leaf extract as an anti-stress agent in feeds, stress reaction of freshwater fishes, caused by high farming density, copper sulfate, dipterex and the like during farming can be inhibited, anti-stress capacity of the freshwater fishescan be improved, and disease incidence and mortality rate of the freshwater fishes can be decreased; novel uses of mulberry leaf can be developed, and mulberry leaf resources can be utilized effectively.