138results about How to "Feed less" patented technology

The invention relates to a controlled release bait material and a preparation method thereof. The controlled release bait material refers to small pills, micro-pills, microcapsules, microspheres, particles or sticks prepared from raw materials including a basic material, a feed attractant, a bonding agent, a hydrophilic high-polymer material, a water-insoluble high-polymer material, a quick-release material, a filler, a colorant, a flavoring agent and the like through a preparation means; and the controlled release bait material can be coated for improving the controlled release effect. The invention further discloses a preparation method of the bait material. The controlled release material has rapid and lasting attracting force on fishes, the fish attracting time can be adjusted according to the habit of a fisherman and the habits of fishes, the food ration and frequency of fishes are increased, the fishing success rate can be increased, the food intake of fishes in cultivation of fishes can be increased, the corrosion ratios of remnant feeds and feeds in water bodies are reduced, the utilization ratios of feeds is increased, and the water body environmental pollution is lowered. The preparation method provided by the invention is suitable for industrial production.

The invention discloses a synthetic method for semaglutide and belongs to the field of polypeptide synthesis. In the method, amino acids at 1-30 positions of a main sequence of the semaglutide is obtained by adopting solid phase synthesis, Val at 10 position and Ser at 11 position adopt Fmoc-Val10-Ser11 (Psi(Me, Me) pro)-OH; and an Lys side chain at 20 position adopts Fmoc-Lys(X)-OH. The method comprises the following steps of performing cracking precipitation to obtain a semaglutide crude peptide; and performing purification to obtain the semaglutide. In the method, by introducing the Fmoc-Val10-Ser11 (Psi(Me, Me) pro)-OH to solve the problem of difficult sequence synthesis of the semaglutide, difficult sequence synthesis becomes simple and easy; and meanwhile, the yield is greatly increased, the purity of the crude peptide is greatly improved, the production cost is greatly lowered, and industrial amplification production is facilitated.

The invention discloses a smelting method of non-quenched and tempered steel. The smelting method comprises the working procedures of converter smelting, LF refining, VD vacuum treatment and continuous casting, and comprises the specific technological steps that (1) nitrogen is blown at the bottom in the whole converter smelting process, and converter high-carbon drawing and tapping is carried out; (2) diffusion deoxidation is carried out in the LF refining process, good deoxidation and desulfurization effects are guaranteed, and the N content of molten steel after LF finishing is 75-90ppm; (3) VD vacuum treatment is carried out, wherein the content of N in the molten steel after hollow breaking is 50-60 ppm, after hollow breaking, soft blowing time is larger than or equal to 30 min, and argon flow is smaller than or equal to 25 L/min; and (4) continuous casting adopts crystallizer stirring and tail-end stirring, medium-high carbon tundish covering agent and medium-carbon crystallizercovering slag are used, and continuous casting billets are cooled slowly in an off-line mode. According to the smelting method of the non-quenched and tempered steel, the nitrogen content yield is stable, the performance of the non-quenched and tempered steel is good, calcium cyanamide (CaCN2) is not adopted, environmental pollution is small, the feeding amount of the manganese nitride wire is small, and the production cost is low.

The invention discloses a synthesizing method of sermaglutide. The synthesizing method comprises the following steps of step 1, preparing Fmoc-Gly-Wang resin; step 2, using the Fmoc-Gly-Wang resin, protective amino acids, and octadecandioic acid (OtBu)-gamma-Glu-OtBu-PEG-PEG-OH as the raw materials to prepare full-protective peptide resin which contains Depsipeptide Units; step 3, performing TFA (trifluoroacetic acid) cracking on the peptide resin, so as to obtain crude peptide; step 4, dissolving the crude peptide obtained in step 3, adjusting the pH (potential of hydrogen) value, and converting ester bonds into amide bonds to react, so as to obtain a crude product of the sermaglutide. The synthesizing method has the advantages that by introducing the Depsipeptide Units, the problem of difficulty in sequential synthesizing of the sermaglutide is solved, and the target product is obtained by the reaction of converting the ester bonds into the amide bonds; the purity and yield of the crude peptide are improved, and the synthesizing method is suitable for downstream purifying, and is suitable for industrialized production.

The invention discloses a harvester provided with a protective ladder and a lifting type lower header capable of smashing straw and preventing the smashed straw from splashing. The harvester comprises the lower header and the protective ladder, and the lower header is hinged to a front axle of the harvester. The lower header comprises a lower header main frame, a lower cutting mechanism, a straw smashing mechanism, a transmission mechanism and a lower header lifting mechanism. Blocking angle iron is further fixedly connected with the rear portion of a shield of the lower header main frame. The lower header lifting mechanism comprises a lower header lifting oil cylinder, a lower header lifting oil cylinder upper base and a lower header lifting oil cylinder lower base. The harvester provided with the protective ladder and the lifting type lower header capable of smashing straw and preventing the smashed straw from splashing can cut and smash straw left after grain harvesting, and the feed quantity of the harvester is reduced. Cutting stubbles are short and flat so that tillage can be convenient. The straw cutting and smashing efficiency is high, smashing is uniform, and the smashed straw cannot splash. The lower header can ascend and descend so as to control the height of the cutting stubbles and avoid obstacles to protect equipment safety. The arranged protective ladder makes people climb safely and conveniently, and can also be used as a safety guardrail.

A composite feed for calf is proportionally prepared from steam pressed corn flakes, steam pressed soybean flakes, soybean peel, cotton seed dregs, distilled corn generated by preparing alcohol, distilled grains generated by preparing beer, and edible salt through mixing, pulverizing and packing.

The invention provides feed for sows and a breeding method of sows, and relates to the technical field of breeding. The feed for the sows is prepared from feed for pre-pregnant sows, feed for pregnant sows and feed for lactating sows. The invention also provides the breeding method of the sows. The breeding method comprises the steps of (1) pig house management, (2) feeding management and (3) stocking management. The feed for the sows is reasonable in proportion of the three groups of feed, green and safe, and simple in preparation process; in a breeding process, by means of differential feeding in a targeted way in different stages, the different nutritional requirements of the sows at the different stages can be met, the health of the sows is guaranteed, the farrowing survival rate of the pregnant sows is improved, the probability of abortion, stillbirth and mummy fetuses is reduced, and the lactating sows are smooth in circulation of qi and blood, healthy in fur and smooth in milk secretion. After the feed for the sows and the breeding method of the sows are adopted, the sows are fed in a targeted way, so that the breeding benefit is maximized, the aims of saving cost and improving feed utilization rate are achieved, and the feed and the breeding method are worth of being generalized.

The invention relates to a combine harvester. The combine harvester is a full-feed harvester with a lifting device and is designed to combine the advantages of full-feed harvesters and semi-feed harvesters. The combine harvester is formed by restructuring a full-feed harvester consisting of a machine frame, a header, an ear conveying device, a threshing device, a storage device, a power device and a traveling device, that is, by mounting a crop lifting device in front of a hopper of the header to form the header with the hopper, a screw feeder, a cutter, a transmission mechanism and the lifting device. The combine harvester can be used to harvest laid crops, improve working efficiency, reduce loss during harvest, effectively reduce feed quantity, reduce machine load, faults and costs, is high in efficiency and easy to popularize, and overcomes drawbacks that the full-feed harvesters can not effectively harvest laid crops .

An insecticide for attracting and killing Groton bug contains dodecylchloropentacyclic decane powder or O, O-diethyl-O-3,5,6- trichloro-2-pyridyl) thionophate powder, cooked yolk powder, potato starch and other starch. Its advantages are high efficiency and high safety.

The invention discloses a large SRB wind power main bearing outer ring profiling rolling method. The method comprises the following steps that S1, in the blank manufacturing preparing stage, a blank (2) with the assigned process size is obtained, OD is the assigned forge piece outer diameter size, ID is the assigned forge piece inner diameter size, and H is the assigned forge piece height size; and S2, the blank size is input into a horizontal grinding replacing machine, OD1 is the blank outer diameter and is equal to the sum of OD and x, x is larger than 0, ID1 is the blank inner diameter andis equal to the difference of ID and y, y is larger than 0, H1 is the blank height and is the sum of H and z, and z is larger than 0. According to the large SRB wind power main bearing outer ring profiling rolling method, due to the high conical roller pressure, material gathering on the two end faces is achieved, near-net forming rolling of a large-wall-thickness-difference SRB bearing ring canbe achieved, the work face fit degree is high, metal flow line cutting-off is reduced, enhancing of the integral product performance is facilitated, and the product fatigue life is long. Through the high conical roller pressure, material gathering on the two end faces is achieved, the production process is stable, product consistency is good, and few quality problems exist; and through the high conical roller pressure, material gathering on the two end faces is achieved, the production efficiency is high, charging is little, cost is low, the material utilization rate is high, and enhancing ofthe market occupancy is facilitated.

The invention relates to steel for cold forging of a universal joint fork of a passenger car and a manufacturing method of the steel. The steel comprises the following chemical components in percentage by mass: 0.04 to 0.10 percent of C, 0.01 to 0.12 percent of Si, 0.40 to 0.60 percent of Mn, less than or equal to 0.015 percent of P, 0.020 to 0.035 percent of S, less than or equal to 0.10 percent of Cr, less than or equal to 0.10 percent of Ni, less than or equal to 0.10 percent of Cu, less than or equal to 0.02 percent of Mo, 0.020 to 0.050 percent of Al, 0.007 to 0.009 percent of N and the balance of Fe and inevitable impurity elements. The texture of the steel is ferrite and pearlite, and the spheroidization rate of the pearlite is larger than or equal to 85%. The production process route comprises the steps of molten iron pretreatment, primary smelting in a converter, refining, continuous casting, continuous casting billet cooling, continuous casting billet heating, rolling, cooling, spheroidizing annealing and lathing. Taking a bar with the diameter phi of 20-40 mm as an example, the surface hardness is smaller than or equal to 110 HV30; Rp0.2 is smaller than or equal to 280 MPa, Rm is smaller than or equal to 360 MPa, the ductility A5 is larger than or equal to 40%, the percentage reduction of area Z is larger than or equal to 75%, and a product has excellent plasticity and low deformation resistance and is steel for cold forging with ideal performance.

The invention discloses a harvester of a fixed lower header capable of preventing splashing of broken straws. The harvester comprises the lower header, wherein the lower header is firmly welded on a front axle of the harvester and comprises a lower header main frame, a lower cutting mechanism, a straw breaking mechanism and a transmission mechanism. The harvester also comprises a fixation rod and blocking angle iron, wherein a first right angle edge of the blocking angle iron is welded on the lower edge of the rear part of a blocking cover; and a second right angle edge is located under the first right angle edge and perpendicular to the horizontal ground. Each cutting blade is parallel to the horizontal ground. The transmission mechanism comprises a chain, a driven chain wheel, a first transmission shaft, a first pulley, a first belt, a second pulley, a second transmission shaft, a third pulley, a third belt, a tensioning pulley and a tensioning pulley installation shaft. The harvester of the fixed lower header capable of preventing the splashing of the broken straws disclosed by the invention has the advantages that straw parts left after cereal reaping can be cut and smashed, so a feeding amount of the harvester can be reduced, and machine losses and threshing loads can be reduced; stubble cutting is low and smooth, so ploughing becomes easier; and straw smashing efficiency is high, and the broken straws will not be splashed.

The invention discloses a harvester capable of chopping straw and provided with a fixed lower cutting table. The harvester comprises the lower cutting table. The lower cutting talbe is fixedly welded on a front axle of the harvester, and comprises a lower cutting table main frame, a lower cutting mechanism, a straw chopping mechanism and a transmission mechanism. One end of each of lower cutting table connecting rods is fixedly welded on the front axle. The lower cutting mechanism comprises a plurality of fixed tool bits which are arranged in a straight line and fixedly arranged on a base. Each cutting blade is parallel to the horizontal ground. The straw chopping mechanism is mounted in an accommodating space defined by the base, a covering shelter, a first sealing plate and a second sealing plate. The harvester has the advantages that the straw parts left after harvesting of crops can be cut and chopped, the feeding quantity of the harvester is reduced, the machine loss and the threshing load are reduced, the threshing effect is improved, the cut stubble heights are consistent, low and level and convenient for ploughing, the cutting and chopping efficiency of the straw is high, the chopped straw can be directly plough down in the soil in ploughing, and the straw is used as a base fertilizer after returning to the field.

The invention provides a premix for growth fattening pigs. The premix for the growth fattening pigs mainly comprises the following components in parts by mass: 0.4-0.5 part of composite vitamins, 1.3-1.6 parts of composite trace elements, 0.3-0.5 part of a composite phagostimulant, 14.0-17.0 parts of stone powder, 7.0-9.0 parts of dicalcium phosphate, 3.7-3.9 parts of sodium chloride, 6.0-10.0 parts of composite amino acids, 1.2-1.8 parts of complex enzymes, 0.5-0.6 part of choline, 0.4-0.5 part of an antioxidant, 0.25-0.50 part of cretian origanum oil and 56.0-65.0 parts of a carrier. The premix for the growth fattening pigs can effectively improve the digestion and the absorption of feeds by the fattening pigs, and reduce the raising cost. Besides, the invention further provides a preparation method of the premix for the growth fattening pigs. The method is simple and easy to operate, and the premix can be in mass production.

The invention relates to the technical field of piglet cultivation, in particular to a conservation method for piglets of Ziyun flower pigs. The method comprises the following steps of (1) after delivery of sows and in the feeding process, performing manual intervention and weaning the piglets when the weight of each piglet is above 4.5 kg; and (2) putting the piglets weaned in the step (1) into conservation rings according to the specification of 10 piglets per ring, paving on the lowest layer in the ring with a bedding material, covering with a mulching film and paving the upper layer with cotton after disinfecting the upper layer. According to the method, the newly born piglets are fed with pig milk and artificial milk alternately, so the stress resistance of the piglets is improved, the conditions of diarrhea and cold of the piglets caused by weaning at later period are avoided, the survival rate is increased, the growth of the piglets is effectively promoted, the development of organs is promoted and the immunity is improved; besides, scientific and reasonable vaccine injection is conducted in the conservation stage, so diseases are effectively avoided, the survival rate is increased, the slaughtering rate is guaranteed, and a guarantee is provided for huge requirements of the current market on the Ziyun flower pigs.

The invention relates to the technical field of mechanical equipment, in particular to a bundling machine feeding amount monitoring system and a bundling machine. The bundling machine feeding amount monitoring system comprises a compression mechanism, a bundling mechanism, a walking mechanism and a control device which are arranged at intervals, and the compression mechanism, the bundling mechanism, the walking mechanism and the control device are all arranged on the bundling machine; and the bundling machine feeding amount monitoring system synchronously works along with the bundling machine,the compression mechanism is provided with a first detection device, the bundling mechanism is provided with a second detection device, the walking mechanism is provided with a third detection device, and the first detection device, the second detection device and the third detection device are connected with the control device. According to the bundling machine feeding amount monitoring system,the feeding amount of the bundling machine can be monitored in real time, a driver can adjust the feeding amount conveniently in time, and the situation that the feeding amount is too high or too low,blockage is caused or the bundling size is too small, and the bundling efficiency is affected is avoided.

The invention discloses a synbiotic feed additive for pregnancy sows. The synbiotic feed additive is prepared from a composite probiotic agent, maltodextrin, isomaltooligosacharide, glucose, citric acid, complex vitamins, radix astragali, honeysuckle flowers, bighead atractylodes rhizomes, rhizoma atractylodis, cortex magnoliae officinalis, katsumada galangal seeds, Chinese mugwort, semen cuscutae, Chinese taxillus herb and crispateleaf ardisia roots, wherein the composite probiotic agent is a mixture of enterococcus faecium, microzymes, bacillus subtilis and bacillus coagulans. The inventionfurther provides an application method of the additive. During period of pregnancy of sows, the feed additive is added to feeds according to the addition quantity that the added feed additive is 0.3-5% of the weight of the pregnancy sows for feeding. The feed additive has the efficacy of preventing miscarriage, promoting delivery, nourishing the liver, supplementing qi, resisting bacteria, diminishing inflammation, being nutritive and health-care and the like, is free from toxic and side effects, and can be used as a feed additive to be added to a feed for the pregnancy sows for feeding. The feed additive can improve the constitutions of the pregnancy sows in essence, the immunity and the stress resistance of the pregnancy sows can be improved, the spontaneous delivery rate of the sows canbe greatly increased, and improving of quality of piglets produced by the sows can be facilitated.

The invention relates to a rice straw returning seeder and a corresponding rice straw returning seeding method, and belongs to the technical field of agriculture. The seeder is mainly composed of a walking chassis, a straw cutting and conveying device, a straw shredding device, a seeding device and a smashed straw spraying device. Straw picking, cutting, conveying, shredding, seeding and smashed straw covering operation can be completed at a time. The corresponding method comprises the steps that long straw stubble and threshing discharge obtained after rice harvesting are cut and collected, and the smashed straw with the length not larger than 8 cm is obtained through cutting; then, crop seeds are sown on an inasaka stubble field in rows, and then the field surface is evenly covered with shredded straw. According to the rice straw returning seeder and the corresponding rice straw returning seeding method, the full quantity of rice straw can be returned to the field, so that environmental protection is facilitated, the seeding quality of afterreap crop (rice, oilseed rape and the like) can be improved, the yield is improved, and therefore good social and economic benefits can be obtained through usage and popularization of the rice straw returning seeder and the corresponding rice straw returning seeding method.

The invention discloses fully-cooked granulated feed for greenhouse breeding of soft-shelled turtles and a preparation method of the feed. The feed is prepared from raw materials in parts by weight as follows: fish meal, fermented soybean meal, fermented sunflower seed meal, extruded soybeans, blue-green algae, glycine betaine, beta-glucan, pawpaws, vital gluten, fish oil, monocalcium phosphate, methionine, composite vitamins, composite minerals and a traditional Chinese medicine preparation. Compared with the prior art, the feed has the advantages as follows: the matching ratio of amino acid to protein raw materials is balanced, the content of crude protein in the feed is increased, the crude protein and other raw materials in the feed are matched and have a synergistic function, the feed amount of nitrogen and phosphorus is reduced, and accordingly, loss of nitrogen and phosphorus is reduced; livers of the bred soft-shelled turtles are small and bear little load, the disease resistance is higher, antibiotics are avoided, the breeding cost is saved, and the body immunity is activated by generating non-specific immunoregulation factors.

The invention discloses a tor-brevifilis and spinibarbus-hollandi pond micro flowing water aquaculture method. The tor-brevifilis and spinibarbus-hollandi pond micro flowing water aquaculture method includes the following steps: A, repairing and maintaining a pond; B, breeding fries, wherein in the beginning of March, 790 to 810 young spinibarbus hollandis with the sizes ranging from 50 g to 100 g are bred in every 667 square meters, in mid-April, and 780 to 820 tor brevifilises with the body lengths ranging from 1.5 cm to 2.5 cm and 18 to 20 water-quality-adjusting fishes with the sizes ranging from 1.8 kg to 2.1 kg are bred in every 667 square meters; C, managing feeding, wherein before taming feeding is carried out, minced fillets are fed once every day, and the everyday feeding amount is 1% of the weight of all the fishes; after taming feeding is carried out, when the water temperature is lower than 28 DEG C, the everyday feeding amount is 3% to 4% of the weight of all the fishes, and when the water temperature is higher than or equal to 28 DEG C, the everyday feeding amount is 2% to 3% of the weight of all the fishes; D, managing the water quality, wherein water in the pond is kept in the flowing state, and the water flowing speed ranges from 19 cm/s to 22 cm/s; E, carrying out daily management; F, preventing fish diseases.