66results about How to "Feeding method is simple" patented technology

The invention discloses a method for propagating Phytoseiulus Persimilis, which comprises the steps: planting and cultivation of host plant, inoculation and feeding of Tetranychus cinnabarinus, inoculation and feeding of Phytoseiulus Persimilis as well as collection, package and refrigeration of Phytoseiulus Persimilis. The method takes mass propagation of Phytoseiulus Persimilis as the purpose, provides technical support for feeding Phytoseiulus Persimilis on scale, and provides special predacity natural enemy for Tetranychus pest mites on greenhouse crops for biological control. The invention is a production method in which living hosts (firstly host plant and host Tetranychidae are cultivated) are adopted for feeding Phytoseiulus Persimilis, and makes a series of breakthroughs on key techniques for artificial mass propagation of Phytoseiulus Persimilis. The method of the invention can lead the production cost of Phytoseiulus Persimilis to be stabilized, the production period to be 25 days, and the production scale to reach 10,000/m<2>.

The invention discloses a sillago sihama fry mouth opening bait culturing, selecting and feeding method and belongs to the technical field of artificial fish breeding. Sillago sihama fry mouth opening bait is cultured and selected in a high-place pond which is disinfected through a dry method, and water in the high-place pond is disinfected. The sillago sihama fry mouth opening bait is obtained through the steps of water disinfection, fertilizer applying, chlorella culturing, basic bionic bait culturing, high-density zooplankton culturing, macrozooplankton restraining, microzooplankton collecting, selecting and other steps. The mouth opening bait can meet the requirement for nutrition for sillago sihama fry growing, and healthy growing of sillago sihama fry is promoted. The bait culturing, selecting and feeding method is simple and easy to implement. The sillago sihama fry mouth opening bait culturing, selecting and feeding technology can establish a technological basis for improving the sillago sihama fry artificial cultivation technology and adding a new band for marine fish culture in China, and has important significance in sillago sihama cultivation industrialization development.

The invention discloses a method for breeding grubs with fermented cow dung, and belongs to the technical field of grub breeding. The method for breeding the grubs comprises the steps of culture medium preparation, egg breeding, egg collecting, staging breeding, grub adult cultivation and the like. The cow dung is selected for breeding the grubs on a large scale, the breeding method is simple, convenient to use and low in cost, animal waste is utilized, pollution to the environment can be reduced, and remarkable economic benefits can be achieved. According to the method, the breeding density,the breeding condition, breeding feed preparation and grub screening and separating are studied, and the grubs can be bred intensively.

The invention relates to an aquaculture method, and provides a feeding method of tilapia. By means of the feeding method of the tilapia, the tilapia can be fed with fodder regularly in a discontinuous mode, the labor intensity that cultivation workers need to feed the fodder every day is relieved, accordingly, the labor cost is saved, and cultivation benefits are improved. Juvenile tilapia is placed in an aquarium in a water circulating aquaculture system and is fed by tilapia matching fodder; during the cultivation period of the tilapia, the feeding mode that the tilapia is fed for 3-5 days every time after famishing for one day is adopted, excrement and residual fodder in the aquarium are removed by a siphonage every time before feeding and after feeding, and drained water is complemented by tap water which is fully aerated; during the feeding period, natural lighting is adopted, an air pump is utilized for air inflation continuously for 24 hours, the water temperature is 25.5-31.8 DEG C, and the amount of dissolved oxygen is 5.1-7.2mg/L.

The invention provides a method for synthesizing a liquid crystal compound containing 1, 3-dioxahexane, which comprises procedures of hydrogenating and reducing alkyl or alkyl cyclohexyl diethyl malonate into alkyl or alkyl cyclohexyl propanediol by a reducing agent. With the method for synthesizing the liquid crystal compound containing 1, 3-dioxahexane, a compound composed by potassium borohydride and anhydrous lithium chloride is adopted as the reducing agent which is easy to be preserved; the batch charging method is simple; and the yield coefficient of the reaction is relatively ideal, with low cost and safe operation.

The invention discloses an alkaline-free anti-crack concrete shrinkage reducing agent comprising the following components in percentage by weight: 35-66% of I-grade coal ash, 8-18% of polypropylene staple fiber, 2-18% of polyethylene glycol, 3-17% of methacrylic acid, 2-15% of calcium formate, 3-16% of neopentyl glycol and 0.2-0.8% of sodium dodecyl benzene sulfonate. The invention provides possibility for realizing the comprehensive improvement of an additive technology, reducing concrete shrinkage, inhibiting non-loaded cracks and improving the durability of concrete through the research on and application as a shrinkage reducing additive and creates the environment-friendly alkaline-free anti-crack concrete shrinkage reducing agent. The technology is simple in feeding way, easily-controlled in production condition, simple in process and capable of producing the alkaline-free anti-crack concrete shrinkage reducing agent which is low in alkaline content and mixing amount and capable of effectively controlling the shrinkage of concrete. The alkaline-free anti-crack concrete shrinkage reducing agent has a relatively good social benefit and a relatively high economic benefit.

The invention discloses a black swan feeding method. According to the feeding growth periods of black swans, the method is divided into four growing steps including the young swan period, the small swan period, the growing period and the breeding period, factors such as different fodders and living environments are worked out according to different growths of the black swans of all the periods so as to improve the survival rate and growing quality of the black swans, and healthy growth of the black swans is ensured. Fodders used in the method do not use any chemical agent fodder additive, components are simple, nutrition is complete, the preparation cost is low, environmental protection and harmlessness are achieved, and the feeding method is simple and easy to operate.

The invention relates to a method for propagating Japan exorista japonica with wax moth. The method comprises the steps of putting 60 Japan exorista japonica pupas which are pupated in the same day ina raising cage; placing wax moth larvae treated with 75% alcohol and hot water of 60 DEG C with a culture dish, and placing the culture dish in the raising cage; taking out the culture dish each 2h,moving the wax moth larvae on which the exorista japonica lays eggs, to a disposable plastic cup, wherein 50 exorista japonica pupae are placed in each cup; after 15-20d, taking out the exorista japonica from the disposable transparent plastic cup, and integrally placing the exorista japonica in a new disposable transparent plastic cup, wherein 60 exorista japonica pupae are placed in each disposable transparent plastic cup; and after the exorista japonica are subjected to emergence, moving the disposable transparent plastic cup into a new exorista japonica collecting cage, and starting new round of raising and propagating. The host wax moth larvae used by the method are easy to obtain, simple to operate, and low in cost for raising Japan exorista japonica.

The invention discloses a preparation method of vinyl alkylphosphonate, the vinyl alkylphosphonate and application of the vinyl alkylphosphonate. The preparation method of the vinyl alkylphosphonatecomprises the following steps: A, performing a mixing reaction: mixing phosphorus oxychloride and hexamethyldisiloxane to react for 1 hour; B, adding a catalyst: adding a catalyst into a reacted solution in step A, wherein the catalyst is gamma-aluminum oxide nanofibers; C, carrying out a dropwise adding reaction: dropwise adding a mixed solution of ethylene glycol and trifluoroethanol or a mixed solution of ethylene glycol and allyl alcohol into the reacted solution obtained in step B, controlling the temperature to be 80-90 DEG C in the dropwise adding process, and carrying out heat preservation reaction for 5 hours after dropwise adding is finished; and D, carrying out reduced pressure distillation: collecting 100-120 DEG C/(10-15) mmHg fractions to obtain the vinyl trifluoroethyl phosphate or vinyl allyl phosphate. The method has the beneficial effects of simple process, easiness in operation, low energy consumption, simple feeding mode, few byproducts, high product yield and high product purity.

The invention discloses a feeding control unit which relates to a control device of aluminum powder feeding equipment in aluminum triethyl production equipment. The feeding control unit consists of a nitrogen control unit, a pressure detection unit and a vacuum control unit, wherein the nitrogen control unit consists of a first nitrogen valve unit and a second nitrogen valve unit; the first nitrogen valve unit is arranged between a nitrogen source and the nitrogen replacing tank body of the feeding device; and the second nitrogen valve is arranged between the nitrogen source and the feed delivery tank body of the feeding device. The invention can independently control different working tanks, and the two tank bodies work at the same time without interfering with each other, thereby optimizing the process and enhancing the industrial efficiency; and the invention has simpler structure, is easier for operators to master, and can effectively improve operating efficiency and equipment safety.

The invention provides a freshwater shrimp and crab mixed culture method and relates to the technical field of family aquaculture. The method comprises the steps of pond building, pond cleaning, freshwater shrimp and crab delivery, and pond management. The method is reasonable, the operation is convenient and the culture is convenient.

The invention provides a method for raising Hongyu laying quails. The method comprises the following steps: raising 20-40-day old quails in a coop at 26.5 DEG C, keeping the humidity in the coop to be 65 percent, and keeping the indoor humidity to be 60 percent in the late growing period; leading the daily lighting time in the coop to be not less than 12 hours per day; feeding 20-35-day old quails every 2 hours with growing period feed for totally 8 times; in the laying period, keeping a quiet environment and temperature in the coop to be 25-28 DEG C, feeding quail growing feed every 4 hours for 3 times, and lighting for not less than 16 hours; and observing the conditions of quails in the coop, checking whether the temperature and humidity in the coop are qualified or not, and regulating in time. The method which is provided according to the behavior characteristics of Hongyu laying quails is simple, the quails in the growing period have high growing speed, high survival rate and high laying rate, and the synergistic effect of raw materials is maximized by reasonable proportioning of the raw materials, so that the immunity of the quails is improved, and the incidence rate of the quails is effectively reduced.

The invention provides a method for collecting pupae of Serangium japonicum Chapin. The method includes the steps of obtaining eggs of the Serangium japonicum Chapin, feeding young Serangium japonicum Chapin, collecting the pupae of the Serangium japonicum Chapin and the like. Compared with the prior art, the method for collecting the pupae of the Serangium japonicum Chapin has the advantages that the eggs of the Serangium japonicum Chapin, relative consistent in development conditions, can be obtained continuously, single-faced corrugated boards easily available to raw materials are made into pupating rings easily and conveniently, and accordingly collection of the pupae is facilitated; rapid efficient large-batch reproduction of the Serangium japonicum Chapin is achieved, and the method is scientific, reasonable, simple to operate, convenient and practical.