2725results about How to "Reduce the cost of farming" patented technology

The invention relates to the fields of environmental technology and the breeding and processing of microalgae, in particular to a method for producing feed additive from livestock and poultry breeding wastewater and purifying breeding wastewater to reclaimed water. The method is characterized by comprising the following steps that: wastewater enters an acidification adjusting tank through a grille, and the acidified wastewater enters an anaerobic biochemical reactor for treatment and then enters an aerobic biochemical reactor; after the aerobic biochemical treatment, the obtained biogas slurry enters a settling tank for settling, the supernatant enters a membrane bioreactor for further aerobic treatment and is filtered by an ultrafiltration membrane, the generated ultrafiltration clear liquid is sterilized and neutralized and then enters a photobioreactor, algae are added into the photobioreactor to perform microalgae cultivation, and the algae liquid is discharged from the photobioreactor and then enters a flocculation and settling tank; and after flocculation and settling, the supernatant is used for water recycling, the concentrated algae liquid at the bottom enters a filter, and the separated microalgae slurry enters a fermentation / enzymolysis pot (tank) to perform fermentation / enzymolysis to be used as the feed additive. The invention has the advantages of high economic adaptability, zero discharge and the like.

The invention discloses a compound microbial culture starter and application thereof, which belong to an application of a beneficial microbial preparation at low cost. The active microorganism of the compound microbial culture starter comprises saccharmyces cerevisiae, bacillus subtilis, bacillus natto and lactococcus lactis. The compound microbial culture starter can be used for livestock and poultry raising beds, feeds addictive and other aspects and is characterized by reducing the cost input of users on the culture starter and having stable effect.

The invention discloses a complex enzyme preparation for feeding piglets. The complex enzyme preparation for feeding piglets comprises the following seven enzymes: acid protease, amylase, xylanase, beta-glucanase, cellulase, pectinase and phytase; and the enzymatic activity ratio of the seven enzymes is 1: 1: (8-10): (3.3-4): 1: (0.5-0.55): (0-0.02). By applying the complex enzyme preparation disclosed by the invention, various anti-nutritional factors in feed can be degraded, the viscosity of chyme in an intestinal tract can be reduced, and the metabolic energy of the feed can be improved; the protein and starch digestibility of the piglets can be improved; excessive reproduction of harmful microorganisms in the intestinal tract can be reduced, damage to the intestinal wall can be reduced, and the microecological balance of the intestinal tract can be regulated; the survival rate and disease resistance of the piglets can be improved, the diarrhea rate can be reduced, and the overall uniformity is improved; and the weight gaining of the piglets can be promoted, and the cultivation cost is reduced.

The invention discloses a fermented feed additive, a preparation method and application thereof. The fermented feed additive is prepared by fermenting mixed strains and mixed auxiliary materials consisting of monosodium glutamate protein, bean pulp, bran, cottonseed meal, corn fibers, rice bran and powdered rice hulls, wherein the mixed strains are obtained by mixing activated strains of lactobacillus acidophilus, lactobacillus planetarium, lactobacillus casei, saccharomyces cerevisiae, bacillus subtilis and bacillus licheniformis in a proportion of (1-5): (1-5): (1-5): (1-5): (1-5): (1-5); and the dosage of the fermented feed additive is 5 to 100 percent of the weight of the animal feed when used for the animal feed. According to the fermented feed additive, the bean pulp, the bran, the cottonseed meal and other raw auxiliary materials are sufficiently utilized, so that the food consumption in the animal feeding process is reduced; the fermented feed additive can be used to partiallyor completely replace the animal feed, and antibiotic medicaments can be reduced or prevented from being used; and no medicament is left, so that the feeding cost of farmers is reduced.

The invention belongs to the field of biological techniques and relates to a bacillus subtilis strain and a feed additive and a fermenting agent thereof. The bacillus subtilis has high stress resistance and probiotic effect, so the bacillus subtilis can tolerate artificial gastric juice with a pH value of 2.0 and a concentration of 1 percent, artificial cholate at a concentration of 0.3 percent and a granulating temperature of 80 DEG C; and the bacillus subtilis has a strong inhibiting effect on Escherichia coli K88, Escherichia coli K99 and staphylococcus aureus, high cellulase producing capacity and ability of degrading cellulose. The biological feed additive prepared by using the bacillus subtilis provided by the invention can be used in place of part of antibiotics in livestock and aquatic product culture, improve immunity in animal, improve feed conversion rate and lower culture cost. The bacillus subtilis also can be used in fermentation of bean pulp, cotton meal, vegetable mealand the like, prevent the feed from mildewing, promote the digestion of cellulose in feed and improve the utilization rate of nutrients in the feed.

The invention relates to a method for producing feed by using fungi to ferment Chinese medicine residue. The method includes the following steps: smashing raw materials and refining; mixing ingredients, exposing the mixed ingredients under blazing sun to sterilize and dehydrating, adding water, sterilizing at high temperature, inoculating fermenting liquid, fermenting for 7-10 days, and drying. The raw materials comprise, by weight, 3-5% of bran, 40-45% of corn stalks, and the balance Chinese medicine residue. Water is added according to the ratio of raw materials to water as 1:1.2. A fungus strain in the fermenting liquid is one of edible fungi strains (oyster mushroom, pleurotus eryngii and lucid ganoderma). Chinese medicine residue of yinqiao jiedu tablets and pudilan xiaoyan tablets and biomass solid waste such as corn stalks are used as major raw materials, edible fungi are used for fermenting to prepare feed, degrading capacity of the edible fungi on lignocellulose is used, and the fermented feed contains abundant protein, vitamin and polysaccharide.

The invention belongs to the technical field of feed, and particularly relates to sturgeon feed and a preparation method thereof. The sturgeon feed is prepared from the following materials by weight percentage: 12wt% to 25wt% of soya bean meal, 15wt% to 25wt% of flour, 25wt% to 35wt% of fish meal, 5wt% to 10wt% of meat meal, 6wt% to 10wt% of refined fish oil, 5wt% to 8wt% of shrimp meal, 0.1wt% ofvitamin complexes, 0.2wt% to 0.4wt% of composite trace elements, 0.2wt% to 0.4wt% of salt, and 0.2wt% to 0.4wt% of choline. The preparation method comprises the following steps: weighing the materials by the formula; mixing all the materials except the refined fish oil to form a mixture; micro-grinding the mixture; concocting the ground materials, puffing and granulating; oven-drying, cooling andscreening the products; and post-spraying the oil to obtain the sturgeon feed. The sturgeon feed of the invention has the advantages that the time for solution is as long as about 45 minutes; the digestibility is high; the ratio between feed and meat reaches 1.2-1.5:1 and the disease-resisting rate of sturgeon eating the feed is high.

The invention discloses a method for mixed culture of crabs, shrimps and mandarin fishes. The method comprises the following steps: (1) water in a pool is 0.3-1.5m deep, the slope ratio of the pool is 1:3, high-protection facilities are built at the periphery of the pool, and an automatic aerator is arranged per 667m<2>; (2) the plant area of waterweeds in the pool accounts for one third of the area of the pool, and at the same time, snails are stocked; (3) at the end of March, 500-700 crabs per 667m<2> are stocked based on the standard of 80 crabs per kg, 5-7kg of post larvae of lobsters per 667m<2> are stocked in the first and middle third of April based on the standard, 7-10 mandarin fishes per 667m<2> (in 5 cm length) are put in the last third of May, and 6 kg of fingerling silver carps per 667m<2> are put in the first third of June based on the standard of 800-1000 fingerling silver carps per 1kg; (4) overhead price river crab feed cp.40% is used, supplementary with wheat and bean pulp, feed amount daily is controlled to 4-6% of the weight of shrimp and crab; and (5) a water quality regulator is used for one time per 15-30 days. On each day, shrimp and crab shell auxin and allicin, the amount of which account for 1-1.5% of the amount of feeds, are added.

The invention discloses giant salamander compound bait and a production method thereof. The giant salamander compound bait includes bait for young salamanders and adult salamanders and bait for parent salamanders. The salamander compound bait takes fresh crucian carps, carps, grass carps, loaches and bull frogs as main materials and takes aggregates, mineral powder, micro amino acid and the like as auxiliary materials. After the main materials are mixed and minced, the auxiliary materials are added, and starch is then mixed. After being stirred and rubbed, the materials are filled by plastic casings in a sausage stuffer and dotted. Finally, sausages are sterilized at a temperature of 95-100 DEG C. The giant salamander compound bait can replace fresh fish and shrimp bait to feed giant salamanders. When the giant salamander compound bait is used for feeding, the plastic casings are stripped off, and the giant salamander compound bait is cut into strip materials suitable for the giant salamanders to swallow and thrown into a salamander pond. The giant salamander compound bait has good palatability. Practices prove that when the bait is used for feeding the giant salamanders, the breeding cost of the giant salamanders can be reduced by 30-50%, the growth rate of commercial salamanders can be increased by 10-30%, the salamander reproduction rate can be increased by 50-100%, and thedisease incidence rate of the giant salamanders is obviously reduced.

The invention relates to a method for preparing a microbial fertilizer, a nutrient solution, a fodder and a pesticide and for fermentation bed cultivation by utilizing indigenous microorganism probiotics. The microorganism probiotics are formed by fermenting eight pure natural materials, including indigenous bacteria, green juice, fresh fish amino acid, enzyme alcohol, Chinese prescription nutrient solution, lactic acid bacteria, natural calcium and water-soluble calcium phosphate potassium; the microorganism probiotics contain the mixed flock of various beneficial bacteria, such as, lactic acid bacteria, photosynthetic bacteria, bacillus and yeast; the fertilizer can be used for fertilizing and loosening soil; the agricultural products are free from residue, taste nice and are high in yield; the fodder can be used for guaranteeing no residue on the cultured animal meat product; the meat is tender and free from smell; after the microorganism nutrient solution is used, the microorganism pesticide can prevent and treat insect diseases; the chemical pesticide and the fertilizer residue can be eliminated and decomposed; when the fermentation bed is used for culturing, the excrement cleaning is not required; the animal excrement is decomposed by the fermented padding while beneficial mycoprotein is formed; the fodder can be eaten by the animals; the microbial fertilizer is odorless, zero-emission, environment-friendly, pollution-free to environment and beneficial to the health of human and animals.

The invention discloses a laying hen breeding method, which comprises the following steps of (1) chicken culture: lively and healthy chickens with regular size are selected, and the chickens are cultured at 36 to 37 DEG C; (2) growing period breeding: after one month, the chickens are moved out from a chicken culture room, and are bred at 21 to 24 DEG C, the breeding density is 20 to 25 chickens per square meter, the relative humidity is 55 to 60 percent, the illumination time is 8 to 10h / d, and the illumination intensity is 1 to 1.3w / m<2>; (3) egg laying period culture: the breeding density is 15 to 20 chickens per square meter, the temperature is 15 to 23 DEG C, the humidity is 60 to 70 percent, starting from 20 week old, the illumination is increased by 0.5h per week until the illumination time is 14 to 16h / d, in addition, the illumination intensity is increased to 4 to 5w / m<2>, and in four weeks before the hen elimination, the illumination time is gradually prolonged to 17h until the elimination, eggs are picked in time for creating egg-free environment; (4) hygiene and disease control: ventilation and air exchange are carried out in a henhouse in time, and air in the henhouse keeps fresh. The invention provides the healthy and scientific laying hen breeding method capable of improving the laying hen rate.

The invention discloses a concentrated feed containing Chinese herbal medicine for growing-finishing pig. The concentrated feed comprises soybean meal, fish meal, rapeseed meal, stone powder, calcium hydrogen phosphate, soybean oil, and premix; the following Chinese herbal medicine components are added into the concentrated feed: rhizoma atractylodis, processed fleece-flower root, gentian, tangerine peel, white peony root, parched medicated leaven, parched hawthorn, parched malt, medulla tetrapanacis, semen cuscutae, stir-fried betelnut, radix astragali, scutellaria, rhubarb powder, etc. The feed can improve the immunity, disease resistance, and stress resistance of growing-finishing pigs; the feed has improved quality, can enhance the appetite of the animals, and promote the digestion and the absorption; and the utilization rate of the feed is increased, and the breeding cost is reduced. The feed also has blood circulation invigorating, stomach-strengthening, parasite-expelling, and rapid fattening functions.

The invention discloses a device for ecologically culturing seashell and alga in shallow sea and a method thereof. The device comprises a seashell culture raft and an alga culture raft. The seashell culture raft comprises at least two paralleled floating ropes; buoys are arranged on the floating ropes and are connected with the floating ropes through floating ties; the two ends of each floating rope are fixed by underwater fixing mechanisms; the alga culture raft made by at least one culture curtain is arranged above each two adjacent floating ropes; the adjacent culture curtains are fixed by floating bamboo perpendicular to the floating ropes; and the two ends of the floating bamboo are connected with the floating ties. The device can be used to carry out the hanging culture of the seashell on the floating ropes and carry out the culture of the alga in the culture curtains floating above the floating ropes, thereby realizing the composite culture of the seashell and the alga. The device and the method have the advantages of reducing the culture cost, improving the culture efficiency and culture space utilization factor, and having good effects on the comprehensive use of shallow sea waters, the improvement of the water environment and the prevention and control of diseases.

The invention discloses bacillus pumilus, a probiotics preparation and a preparation method and application thereof. The Bacillus pumilus LV149 is preserved in China center for type culture collection (CCTCC) in Nov. 23th, 2011, and the preservation number is CCTCC NO: M 2011411. The bacillus pumilus LV149 has strong extracellular protease, lipase and amylase activities, has wide rejection capability to vibrio and has no hemolytic activity. The Bacillus pumilus LV149 serves as fermenting bacterial strains and is performed with solid fermentation, drying and smashing so as to prepare bacillus pumilus probiotics preparation which uses Bacillus pumilus LV149 as the active ingredients. The bacillus pumilus probiotics preparation can be added into prawn feeds for feeding prawns, so that growth of prawn intestinal pathogenic vibrio can be restrained, prawn vibriosis can be reduced, simultaneously prawn growth is promoted, fish bait coefficient is reduced, quality of commodity is improved, culture cycle is shortened, accordingly culture risk and culture cost are reduced, biological safety is high and the bacillus pumilus, the probiotics preparation and the preparation method and application thereof have wide application prospect in aquaculture.

The invention relates to a feed, in particular to a wholewheat feed suitable for medium and big pigs of 50 kg before slaughter stage. The feed comprises the following components by mass percent of air dry matters: 0-2 percent of fish meal, 0-25 percent of bean pulp, 1-10 percent of rapeseed meal, 0-10 percent of bran coat, 0-30 percent of corn DDGS (distillers dried grains with soluble), 0-15 percent of whole milk rice bran, 0-60 percent of wheat, 0.3-1.5 percent of calcium carbonate, 0.5-1 percent of secondary calcium phosphate, 0-2 percent of soybean oil, 2 percent of premix and additive and 0 / 01-0.02 percent of wheat complex enzyme. The wholewheat feed has the benefits that firstly, corn is completely replaced by wheat through optimizing the feed formula, the growth of medium and big pigs is not influenced and the meat quality is remarkably improved; secondly, the feed active ingredients all conform to the feed hygienic standard and national standard, so that adverse effects can not be caused on the nutritional value of pork pigs; and thirdly, the pork pig raising cost is effectively lowered.

The invention relates to protein feed rich in small peptides and multi-enzyme strains and a preparation method thereof. The protein feed is prepared by fermenting soybean meal, cottonseed meal, rapeseed meal, bone meal, wheat bran, common salt, light calcium carbonate, water and strains in a fermentation bin. The preparation method of the protein feed comprises the following steps: mixing the soybean meal, the cottonseed meal, the rapeseed meal, the bone meal, the wheat bran, the common salt and the light calcium carbonate in percentage by weight; adding 20-30 percent of water; sending the mixture to an air steamer; adding high-pressure steam to the air steamer so as to increase the air pressure to 1-2 MPa and the temperature to 140-200 DEG C; keeping the pressure for 4-6 minutes; momentarily releasing the mixture in the air steamer; sending the mixture to the fermentation bin; inoculating 3-5 percent of strains when the temperature of the mixture falls to 30-37 DEG C; fermenting for 72 hours at the temperature of 32-37 DEG C; discharging from the bin; and bagging to obtain a finished product. The product has strong disease-resistant function and low cost, increases the productionof animal by-products by more than 20 percent, is nontoxic, harmless and pollution-free and can inhibit food-borne diseases represented in cancers and subhealth phenomena from spreading.

The present invention discloses a high nutrition health chicken feed and a preparation method thereof. Raw materials comprise 30-40 parts of corn flour, 15-25 parts of soybean meal powder, 12-13 parts of dry maggot powder, 9-12 parts of fish meal, 4-6 parts of bone meal, 4-5 parts of brewer's yeast powder, 3-4 parts of seaweed powder, 3-5 parts of shrimp shell, 2-4 parts of sunflower leaves, 3-5 parts of dehydrated carrot, 1-2 parts of dehydrated marigold, 0.2-0.3 part of gravy salt, and a proper amount of an additive and a phagostimulant. The health chicken fed with the high nutrition health chicken feed has characteristics of strong immunity, fast production, high feed conversion rate, robust shape, bright color feathers, fresh meat, and no raw meat odor.

The invention relates to the technical field of feed processing and specifically provides a microbial fermented feed and a production process thereof. The microbial fermented feed is composed of 60% by mass of waste stevia rebaudiana residue, 15% by mass of corn flour, 15% by mass of soybean meal and 10% by mass of liquid strains, wherein the liquid strains comprise lactobacillus fermenti, saccharomyces cerevisiae, bacillus subtilis and clostridium butyricum. According to the invention, a plurality of microbes are utilized and scientifically collocated for fermentation of processing waste of stevia rebaudiana, and the microbial fermented feed with the advantages of low cost, a high nutritional value, fragrant flavor and agreeable taste is produced.

The invention provides a sea cucumber bottom-sowing culture facility suitable for a soft seabed. The facility comprises frameworks, built-in separation nets, built-in dense nets, cuffs, a traction rope, an anchoring object and a marking floater. The frameworks are arranged in parallel and are covered with outer-wrapping netlike clothing, the frameworks are mutually connected to be of a telescopic mesh cage shape, the built-in separation nets for separating each framework into a plurality of culture units are arranged on each framework, the built-in dense net for catching and gathering sea cucumber baits is arranged in each culture unit, cuffs for taking and placing a sea cucumber is arranged on the outer-wrapping netlike clothing of each culture unit, the frameworks on two ends are respectively and sequentially connected with the traction rope and the anchoring object to be fixedly arranged in a seabed, and the marking floater is connected onto one end of the culture facility. Compared with the traditional culture facility, the culture facility provided by the invention is light and convenient, can be compressed, and is convenient for transportation, throwing and management, and the affect from a natural disaster of typhoon and the like is avoided; and by the adoption of the culture facility, the problems of easiness in entrapping by silt, poor culture effect and the like of the traditional culture facility can be solved, particle-like suspended matters in seabed water can be effectively held back as sea cucumber baits, and the survival ratio and the growth rate of the sea cucumber are improved.

The invention relates to a formula of a macrobrachium nipponense feed and a method for preparing a macrobrachium nipponense compound feed from the macrobrachium nipponense feed. The formula of the macrobrachium nipponense feed consists of fish meal, fermented soybean meal, peanut meal, blood powder, yeast, flour, multi-vitamin, multi-mineral, shrimp bran, soybean oil, fish oil, phospholipid oil, squid liver powder and yeast extract. The method for preparing the macrobrachium nipponense compound feed from the macrobrachium nipponense feed comprises the following steps of: weighing according tothe feed formula, stirring and mixing in a stirrer, introducing steam, preparing particles with the particle size of 1 to 1.6mm, dehydrating, cooling, and reducing the temperature of the particles toroom temperature to obtain the macrobrachium nipponense compound feed. The macrobrachium nipponense compound feed is used for feeding macrobrachium nipponense, contributes to meeting the nutritional requirements of the macrobrachium nipponense and improving the food intake of the macrobrachium nipponense, improves feed utilization, increases the yield of the cultured macrobrachium nipponense and reduces culture cost. The macrobrachium nipponense compound feed is applied to the feed used in the culture of the macrobrachium nipponense.

The invention belongs to the field of biotechnology, and relates to Lactobacillus acidophilus and application thereof and a feed additive thereof and a premix compound thereof. The Lactobacillus acidophilus of the invention has strong stress tolerance, and can tolerate simulated gastric fluid and simulated bile salt so as to guarantee that a great quantity of viable bacteria can smoothly enter the intestinal tract of an animal, and the viable bacteria play a probiotic role, so that the immunity of the animal is improved, and the breeding cost is reduced. The product obtained from the Lactobacillus acidophilus of the invention through culture, high-density fermentation and addition of protectant has a high content of viable Lactobacillus acidophilus, can be added as a biological feed additive in the drinking water or feed for breeding animals, and can be prepared into feed such as premix compound and so on, so as to reduce the addition of antibiotics, indeed improve the intestinal tract health and the immunity of animals, and increase the production performance of animals.

The invention discloses a swelling granular mixed feed for adult pelteobagrus fulvidraco, relating to the field of pelteobagrus fulvidraco feed. The feed is suitable for feeding the pelteobagrus fulvidraco in adult stage (namely the pelteobagrus fulvidraco in the adult stage with the weight of more than 20g); the feed is a mixture prepared by all raw materials according to the processing method of swelling granular feeds; according to the weight percentage, the feed comprises the following raw materials of: 36-40% of fish meal, 15.58-19.6% of flour, 3.5-4% of cottonseed meal, 16-20% of soybean meal, 6-7% of maize protamine, 4.5-5.5% of fish oil, 6-7% of beer yeast, 1-1.5% of mineral matters, 0.5-0.6% of choline chloride and 0.2% of multivitamin. Compared with normal mixed feed, the swelling granular mixed feed has the advantages of comprehensive nutrition, high livability, little pollution on culture water, greenness, and no public nuisance.

The invention provides a novel production process of fermented soybean meal by synchronous solid fermentation and enzymolysis. The process increases feeding value of the soybean meal by synchronization of probiotic fermentation and protease enzymolysis and mainly includes: high molecular weight protein is degraded into small molecular weight protein, polypeptide, small peptide and the like easy to absorb by animals by enzymolysis of an external added protease and microbial secretion composite enzyme system; and antinutritional factors in the soybean meal are removed by microbial fermentation, content of organic acids and microbes in the fermented soybean meal is increased, and accordingly feeding value of the soybean meal is increased. The fermented soybean meal produced by the production process is rich in various digestive enzymes, most of the antinutritional factors in the soybean meal are degraded, content of soluble protein in the soybean meal is increased, a certain amount of organic acids and special flavor is added, the soybean meal has high feeding value and is applicable to livestock and poultry feed and aquatic feed, and the soybean meal serving as the aquatic feed is capable of partially replacing fish meal in application.

The invention discloses a humic acid composite slow-release fertilizer and a method for preparing the same. In the fertilizer, weathered coal and the common fertilizer are used as raw materials, and subjected to activation of the weathered coal, material mixing, high-temperature spraying granulation and drying to obtain the fertilizer. By the organic-inorganic combination, the organic-inorganic mutual-aid control and the nutrient slow release, the fertilizer improves the utilization rate of the fertilizer (10 to 15 percent), reduces loss of nutrients and avoids the secondary pollution. The fertilizer has the characteristics of wide material source, high mechanical strength of fertilizer particle (the mechanical strength is more than and equal to 16N), no deliquescence, convenient transportation and use and the like, and has wide application prospect in production.

The invention relates to a composite microorganism ferment material which is characterized in that production strains select production strains of which the growth rate is quick and the enzyme production quantity is large by combining with through ray inducement and production performance detection. The processing technique employs innovative symbiosis compatibility design of probiotics and multi-compound fermentation technology, the number of the live probiotics in the products achieves five billion per gram, and the products simultaneously contain polyoses, polypeptide, organized enzyme, organic acid, phytosterin, triterpennoids saponin and the like active metabolite. Specific enzyme producing inducer is added to growth medium, the latest single creature venting valve is employed on the package, which not only can be added to complete feed of livestock or poultry but also can be directly added into feedstuff, thereby effectively promoting breakdown and absorption of giant molecule nutrient substance in the intestinal canal of livestock or poultry, thereby eliminating the action of anti-nutritional factors in the feedstuff, remarkably increasing utilization ratio of the feedstuff, and reducing the feeding cost.

The invention relates to an ecological circulation system and a breeding method, in particular to an ecological circulation system for litopenaeus vannamei systematic breeding and a breeding method. The ecological circulation system comprises a litopenaeus vannamei pond, a net frame aerating system is arranged in the litopenaeus vannamei pond, a sewage suction and energy-saving discharge system is arranged at the bottom of the litopenaeus vannamei pond and communicated with a sewage suction and filter system, the sewage suction and filter system is communicated with a water circulating and refluxing system, and the water circulating and refluxing system is communicated with the litopenaeus vannamei pond. The breeding method includes steps of pond cleaning and treating, litopenaeus vannamei and bait throwing, periodically cleaning, water circulating and sewage suction, aerating equipment starting, pond patrolling and observing and litopenaeus vannamei outputting. The ecological circulation system and the breeding method have the advantages of compact and reasonable structure, comprehensive circulation and utilization, breeding cost reduction and higher litopenaeus vannamei quality.

The invention relates to concentrated feed special for beef cattle. The concentrated feed special for beef cattle comprises the following components by weight: 18%-25% of corn, 5%-10% of wheat bran, 1%-5% of soybean meal, 6%-12% of cottonseed meal, 8%-24% of DDGS feed, 0.5%-2% of molasses, 8%-16% of corn germ meal, 16%-28% of corn fibers, 1%-2.5% of corn protein powder, 1.2%-2.2% of stone powder,0.5%-0.8% of table salt, 0.3%-0.5% of calcium hydrophosphate, and 2%-5% of seasoning. The concentrated feed special for beef cattle of the invention is rich in various nutritional components, has an improved feed conversion rate and daily weight gain after eating by cattle, greatly reduces culture cost, and is a safe, environment-friendly, high-quality, high-efficient cattle concentrated feed formula.

The invention relates to a bottom-dwelling food organism medium for cultivating procambarus clarkia and a using method of the bottom-dwelling food organism medium; the medium and bottom sediment at bottom of a pool are mixed to be injected into river water filtered by a 60-mesh bolting-silk for cultivating aquatic bottom-dwelling organisms and proliferative waterweeds; the cultured food organism can replace more than 50% of artificial diet, the cultivation cost is greatly reduced, and the high-quality bottom-dwelling food organisms can provide a nutrient source for rapid growth of the procambarus clarkia, so as to greatly improve the growth size, yield and benefit; and the produced high-quality commodity shrimps can have improved market competitiveness, and reduced cultivation cost and cultivation risk.

The invention discloses hemp fimble leaf-based total mixed ration granulated feed for sheep. The hemp fimble leaf-based total mixed ration granulated feed is prepared from the following raw materials by mass percentage in parts by dry weight: 40-55 parts of dry hemp fimble leaves, 40-55 parts of dry straw, 12-20 parts of corn, 10-15 parts of soybean meal, 10-15 parts of bran, 4-6 parts of trace element premix, 0.8-1.5 parts of calcium hydrogen phosphate and 0.5-1.2 parts of salt which are processed into the total mixed ration granulated feed for sheep through processes such as triturating, grinding, weighing, mixing, tempering and granulating. Animal feeding tests show that in the test period, the average daily feed intake of lambs in a group fed by the total mixed ration granulated feed is higher than that of a control group by 70g, the daily gain is increased by 17.25g compared with the control group, and the net income per sheep is increased compared with the control group on average.

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