451 results about "Slow growth" patented technology

The invention relates to a water circulation system and a method for breeding marine fishes inland, and mainly solves the technical problems of complex process, large investment, high operating cost, large limitation of breeding varieties, low survival rate, slow growth and the like in the process of breeding the marine fishes in fresh water or low salinity salt water at present. A technical scheme comprises the following steps of: a, establishing the water circulation system; b, performing domestication on juvenile fishes of the marine fishes in the low salinity salt water in a gradient mode, namely breeding the juvenile fishes which are bred in the seawater in the brackish water temporarily, formulating a domestication strategy of slowing salinity gradually, and performing domesticationon the juvenile fishes of the marine fishes through three gradients, namely the brackish water phase, the low salinity phase and the ultra-low salinity phase; c, adding a physiological salt preparation, namely adding metal ions which play a key role in osmoregulation into the water or a feed; and d, managing the breeding, namely providing a preference temperature, illumination intensity and a daily illumination period. The water circulation system and the method are mainly used for breeding the marine fishes inland.

The invention discloses an antibiotic-free pig creep conservation general concentrate, which comprises the following components by weight percent: 0.03 to 0.15% of vitamins, 0.5 to 2.5% of microelements, 0.01 to 1.8% of amino acid, 0.2 to 2.5% of prebiotic, 0.03 to 0.15% of enzymic preparation, 0.2 to 5.0% of lactic acid bacteria, 5 to 40% of fermented soybean meal, 10 to 40% of whey powder, 4 to 16% of glucose powder, 10 to 40% of protein supplement, and 2 to 10% of vegetable oil. The antibiotic-free pig creep conservation general concentrate provided by the invention can be used for well controlling the diarrhea of piglets, and solving the problems of low feed intake, slow growth, and low immunity of piglets and the like, and has good palatability and high feed conversion rate.

The invention discloses a method for transforming the artificial young forest of western Sichuan subalpine low-efficiency picea asperata. On the cutover land of a western Sichuan subalpine forest region, a large area of artificial pure forest mainly comprising picea asperata is built, however, because nurturing measures are ineffective and shrub and broad-leaf pioneer tree species intrude into the artificial young forest, dense shrubs, poorer ventilation and insufficient illumination in the forest are caused to result in the conditions of high death rate, slow growth and difficult forest stand updating of trees of the artificial young forest. According to the invention, by adoption of the technical means of thinning, light-transmitting nurturing, pruning, removal of weeds and shrubs in the range being 0.5m beyond the crown projection of target tree species, after-culture of four-year-old seedlings of the picea asperata, nursery stock nurturing, forest stand management and the like, the forest stand structure, species composition and forest stand site conditions are improved, and the survival and growth of the trees are promoted obviously. The method disclosed by the invention has the advantage of improving the forest stand quality and economic benefits of the artificial young forest of the low-efficiency picea asperata and is likely to have a broad application prospect in the transformation of the western Sichuan subalpine low-efficiency artificial young forest.

The invention relates to an optical signal technology physical method for preserving vegetables and fruits and an optical signal generating device. By adopting a computer programmable pulse scanning signal generator, the invention controls a light-emitting device with a red, green and blue light source pack to generate a pulse-type optical signal or an optical signal of a pulse-type periodical scanning combined spectrum so as to illuminate fresh vegetables and fruits stored in a storage device under a room-temperature storage condition or a temperature and moisture control condition. Under the physical environmental condition of an artificial optical signal, the illuminated fresh vegetables and fruits obtain photon energy needed for an optical reaction in photosynthesis in an optical signal illumination environment with periodical brightness change so that cell tissues recover metabolism and maintain the slow operation of metabolism and growth inertia; through controlling the optical signal of a periodical pulse spectrum or a periodical pulse scanning spectrum or a periodical pulse scanning combined spectrum, and the illuminance, the pulse period and the combined scanning mode of a visible spectrum optical signal emitted by the red, green and blue light source pack are controllable so as to achieve the aims of controlling the slow growth process of the harvested vegetables and fruits under the room-temperature condition or the temperature and moisture control condition, effectively prolonging the fresh state of the harvested vegetables and fruits by the slow metabolism operation of the preserved vegetables and fruits, keeping the freshness of the stored vegetables and fruits and prolonging the preservation time.

The invention provides a breeding method capable of improving chicken quality. The breeding method capable of improving the chicken quality comprises a feed formula and a detoxification drug formula, wherein the feed formula comprises, by weight, 50% of corns, 20% of wheat bran, 10% of bean-cakes, 5% of green-hay powder, 3.8% of rice bran, 5%of cottonseed cakes, 3% of fishmeal, 1.5% of bone flour, 0.3% of salts, 0.4% of methionine, 0.5% of microelement premix feed, and 0.5% of disinfection drug. The detoxification drug formula comprises, by weight, 40 % of liquorice, 20% of scutellaria barbata, 12% of dandelions, 13% of garlic heads, and 15% of mung beans. Chicken are bought form a chicken farm, and the chicken are product chicken so that negative factors of breeding early days, slow growth, multiple diseases, medicine expenses and the like are avoided. Breeding periods are selected in spring and autumn, the temperature in spring and autumn is suitable for chicken growth, and diseases for the chicken are few. Original hormone residue and drug residue in chicken bodies can be fundamentally removed due to the fact that no hormone annexing agents are added into self-made feed and Chinese medicinal herb which has detoxication functions are added. The breeding method of the chicken is free-ranging and green grass and insects are a part of food sources. Thus, feed is saved, and the quality of chicken is improved.

The invention relates to a method for preparing a copper indium gallium selenide film by photoelectrochemical deposition, which is to deposit a copper indium gallium selenide film on a substrate placed in an electrolyte by using a photoelectrochemical deposition method; the electrolyte is selected from aqueous solution, organic solution, ion Liquid or mixed solution, which contains at least one of copper, indium, gallium, and selenium ions; the photoelectrochemical deposition process parameters are: the working electrode potential is -6.0 ~ 1.5V (vs SCE); at least one single color The light is used as incident light, and the included angle between the incident direction of the incident light and the working electrode is 0-90°. Finally, heat treatment can be performed on the obtained film. The invention solves the problems of poor film morphology, difficulty in indium and gallium deposition, and slow film growth rate encountered in traditional electrodeposited copper indium gallium selenide films, and has the advantages of good film quality, fast growth rate, controllable composition and good shape etc., the preparation method is low in cost, easy to realize large-area deposition of copper indium gallium selenide thin film, and is conducive to its large-scale industrial promotion and application.

A preparation method of perch feed. The perch feed comprises milk powder, apple powder, pumpkin powder, sea shrimp powder, conch meat powder, sea cowry powder, pig viscera powder, haw powder, balsam pear powder, millettia dielsiana powder, laminaria powder, malt meal, perilla powder, lotus leaf powder, plantain seed powder, balloonflower powder, and ginkgo powder, and the percentages are weight percentages; the perch feed has low price, accessible ingredients, a simple formula and preparation method, good breeding effect; perch bred by the feed grows fast, has large size, is healthy, and has low incidence; and the feed effectively overcomes the defects of slow growth, small size, light weight, disease susceptibility of perch due to insufficient nutrition.

The invention belongs to the field of marine microalgae cultivation, and relates to a formula of a Chaetoceros muelleri medium and a white plastic barrel aerated culture method. Chaetoceros muelleri is a small marine diatom, rich in polyunsaturated fatty acid and protein, and is a high-quality bait for raising sea treasures such as prawn and abalone. At present, an f / 2 culture medium formula used to produce Chaetoceros muelleri has problems of imbalanced and incomprehensive nutrients, slow growth, long multiplication time and low yield. ccording to experiments, nitrate is substituted by urea, which is used as a nitrogen source and supplemented by NaHCO3 and growth hormone, VB12 and VB1, so that the medium gains more comprehensive and balanced nutrients, and yield of Chaetoceros muelleri is increased by 87%. In addition, cement pool and glass cylinder barrel used for culture in current production have many disadvantages: easy pollution, difficult washing, inconvenient operation and easy cutting. Study in the invention shows that a white plastic barrel aerated culture method for culturing Chaetoceros muelleri has advantages of flexible operation, no pollution, easy washing, no cutting, low cost, high yield and large-scale promotion.

The present invention relates to specially-made fertilizer for culturing dendrobium candidum wall.ex lindl, and a preparation method thereof, and belongs to the technical field of organic fertilizer. According to the present invention, the specially-made cultivation fertilizer suitable for the dendrobium candidum wall.ex lindl growth is developed according to the wild natural environment of the dendrobium candidum wall.ex lindl and the characteristic of endomycorrhiza of the dendrobium candidum wall.ex lindl; the formula of the specially-made fertilizer comprises tea bran, fish meal, bone meal, a small amount of phosphorus fertilizer and 100 parts by weight of water, wherein a ratio of the tea bran to the fish meal to the bone meal is 2-4:4-8:4-8. The preparation method comprises: concurrently pouring various components in a plastic bucket according to the ratio, uniformly mixing, fermenting for 3-6 months, and collecting supernatant after fermenting and ripening to obtain the specially-made fertilizer. With the present invention, the difficulties of low transplant survival rate of the dendrobium candidum wall.ex lindl seedlings, slow growth, not high yield and high cultivation cost are solved, such that the transplant survival rate of the dendrobium candidum wall.ex lindl seedlings is more than 98%, the dendrobium candidum wall.ex lindl flowers or produces stems and leaves 1-3 years in advance, the yield is high (the yield per mu is more than 250 kg), the active ingredient content is high, and the quality is excellent; the technical assurance is provided for rapidly culturing the dendrobium candidum wall.ex lindl; the active promotion effects are provided for development, utilization, and meeting of living requirements of the dendrobium candidum wall.ex lindl; important social benefits and economic benefits are provided.

The invention relates to piglet preweaning feed and a preparation method thereof for solving the problems of bad palatability and low digestibility of the piglet preweaning feed. The technical scheme is that the piglet preweaning feed is a fully expanding particle product and consists of expanding corn, expanding soybean, wheatmeal, dairy products, fish meal, vegetables, an acidulant, water, edible fats, lysine, methionine, vitamin premix and minerals premix. In the method of the invention, the raw materials are mixed and ground, the mixture is stirred, and the obtained product is instantly expanded into the piglet fully expanding particle feed at high temperature under high pressure by a food expander. The product of the invention is totally cured, is soft and crisp and is instantly melt in the mouth or in the water. Compared with the existing practical feed, the feed greatly improves the palatability and the digestibility, has balanced nutrition arrangement, is beneficial for the pig to grow rapidly, solves the problems of low feed intake, slow growth, weight reduction after the piglets are weaned and the like, can prevent intestinal villus atrophy after the piglets are weaned, reduces weaning stress, improves the non-specific immunity capability and guarantees the health of the piglets.

The invention belongs to the field of phytoremediation of heavy metal polluted soil, and discloses a method for improving phytoremediation efficiency of copper-polluted soil on the basis of the existing phytoremediation method for the heavy metal polluted soil. The method comprises the following steps: applying a chemical enhancer containing powdered sulfur and ethylenediaminedisuccinic acid to the copper-polluted soil; spraying a nutrient solution containing exogenous plant hormone naming zeatin Z at a fixed period after planting elsholtzia splendens; picking the aboveground parts of elsholtzia splendens after the growing season is finished, so as to reach the purpose of remediating the heavy-metal copper polluted soil. With the adoption of the method, the growth of elsholtzia splendens is promoted, and the problems that high-copper soil represented by soil in a copper mine area inhibits the growth of elsholtzia splendens and causes short plant, small biomass and slow growth can be solved; the method has the advantages of being high in absorbing efficiency, high in degree of enrichment, and obvious in remediation effect.

The invention relates to a system of devices for kneading, mixing and fermenting viscoelastic dough comprising a swing tank (10) provided with a driven arm (30) and a helicoidal counter-arm (31) which is driven by a dough mixture flow and associated to a weakly stirring air-conditioning device producing and maintaining a constant temperature of air and dough pieces ranging from 20 to 26° C. during kneading, tempering and storing and corresponding to an accelerated fermentation and from 9 to 16° C. which makes it possible to carry out slow growth of the dough pieces and to produce sourdough corresponding to a second slow fermentation stage.

The invention provides a serum-free mesenchymal stem cell nutrient solution, which is simple in formula, low in cost and high in safety. The serum-free mesenchymal stem cell nutrient solution comprises a serum-free animal cell culture medium, a B27 serum-free additive, bFGFs (basic fibroblast growth factors) and EGFs (epidermal growth factors), wherein the nutrient solution also comprises fetuin and antibiotics. The nutrient solution does not contain animal serum, has higher safety and definite formula components, and is suitable for clinical treatment. Meanwhile, according to the serum-free mesenchymal stem cell nutrient solution, human fat stem cells can be normally attached to the surface of a culture vessel and grow, the antibiotics are added into the formula components, and the formula is simpler compared with that of the general serum-free nutrient solution. For the fat stem cells cultured according to the conventional formula, the cells began to differentiate and slowly grow after two generations. Compared with the fat stem cells cultured according to the conventional formula, the fat stem cells cultured according to the formula of the serum-free mesenchymal stem cell nutrient solution do not have the phenomena of differentiation and slow growth after being tested, so that the serum-free mesenchymal stem cell nutrient solution is extremely suitable for the growth of the fat stem cells and gum stem cells.

The invention relates to an artificial breeding technology for schizothorax grahami. The artificial breeding technology for the schizothorax grahami includes that cleaning and sterilizing a breeding pond; placing fish seeds; acclimatizing parent fishes and hastening parturition to spawn; incubating fish fries; feeding fodder; fishing and coming into the market. The artificial breeding technology for the schizothorax grahami is capable of effectively improving the problems of low survival rate, slow growth and low reproductive capacity of artificial schizothorax grahami breeding, improving the yield and economical benefit of the schizothorax grahami and promoting the development of the schizothorax grahami breeding industry.

The invention priovidese a new Broussonetia papyrifera mulberry tree hybrid distant hybridization and polyploidization breeding method. The method is characterized in that an inductive hybrid fruit callus doubling distant hybridization polyploid hybrid line is established by an embryo engineering and tissue culture technique of distant hybrids through a reproduction engineering kind improvement technology. The method comprises following steps: 1, obtaining distant hybrid fruits; 2, carrying out callus induction of the hybrid fruits; 3, carrying out colchicine treatment of the callus of the hybrid fruits; 4, carrying out recovery culture of treated calluses; 5, differentiating the calluses into bud seedlings; 6, differentiating the bud seedlings into roots; 7, transplanting tissue culture plants; 8, carrying out comparative observation and selection of survival plants; and 9, carrying out asexual propagation of the selected plants to form a stable kind (line). The method solves the problems comprising slow growth,weak adaptability, unclear trunk and bad material quality of present Broussonetia papyrifera, and allows the new polyploid Broussonetia papyrifera mulberry tree hybrid having the advantages of obvious trunk, strong adaptability and good material quality to be cultivated.

The invention discloses a feed for enhancing disease resistance of piglets and accelerating growth of the piglets. Due to the existence of antigenic protein of soybean meal, the diarrhea rate of the piglets is improved; and the stress of the weaning of the piglets causes the growth check, immunodepression and slow growth, and the feed has low returns. The feed comprises the following components in part by weight: 650 parts of soybean meal, 180 parts of fermentation product, 60 parts of fish meal, 40 parts of bone meal, 30 parts of mountain flour, 13 parts of salt, 3 parts of choline chloride,2 parts of phytase, 6 parts of lysine, 6 parts of vitamin and 1 part of immunoenhancement. The feed is used as a feed concentrate for enhancing disease resistance of piglets and accelerating growth of the piglets.

The method provides a method for assisting in laser engineered net shaping of an Al2O3-based eutectic ceramic cutter through ultrasound. Al2O3 and another kind of ceramic powder are placed in two powder cylinders of a powder feeder, inert gas serves as powder feeding and protective gas, and high-energy laser beams melt ceramic powder injected into a molten pool. By means of pre-adjustment of an ultrasonic device and real-time change of assisting ultrasound power, the equivalent effect of ultrasound on the molten pool is achieved. By means of the cavitation phenomenon of ultrasound, micro-bubbles in the molten pool float and are separated from the molten pool, and the porosity of a eutectic ceramic cutter material is effectively reduced. Due to the ultrasonication theory and the supercooling nucleation theory, a eutectic fiber structure is influenced to grow opposite to the heat flux direction, so thick dendritic crystal is converted into afterbirth-like crystal, and the eutectic spacing of the eutectic ceramic cutter material can reach nanoscale. The method can effectively inhibit material performance degradation caused by cracks and slow growth of a ceramic cutter material at high temperature, and an ultrasonic-assisted system can effectively refine grains, reduce porosity and effectively prevent cracks.

The invention provides a premix mate for laying hens in an egg producing period and a preparation and application of the premix mate and belongs to the field of animal feeds. The premix mate for the laying hens in the egg producing period is prepared from the following raw materials in parts by weight: peanut meal, hot chili residues, fermented cake meal and amino acid, sodium bicarbonate, betaine, hemoprotein, limestone powder, mycoprotein, a shell treasure, calcium hydrophosphate, quercetin, a mildew inhibitor, perennial sowthistle powder, compound probiotics and the like. According to the premix mate for the laying hens in the egg producing period, one part of bean pulp in a complete formula feed can be replaced, the antioxidant activity of the laying hen bodies can be effectively improved, the digestion and absorption rate and the conversion rate of the laying hens in the egg producing period are effectively improved, the immunity is significantly improved, healthy intestinal tracts of the laying hens are ensured, too thin faeces are prevented, unhairing of the egg producing period is improved and slow growth condition of feather is improved. For the conditions of poor quality of egg shells, multiple broken eggs and a short peak laying period, the colors and the quality of the egg shells are effectively improved, the health of bodies is promoted, the production performance is improved and the egg production period is prolonged.

The invention provides a preparation method of a guinea fowl feed, which is composed of the following components in parts by weight: sorghum flour, soybean leaf powder, vegetable bud powder, sweet potato protein powder, yellow mealworm powder, apple powder, green vegetable powder, corn leaf powder, lotus leaf powder, rape powder, vitamin A, pine needle powder, white sugar powder, licorice powder, chrysanthemum powder, malt powder, red jujube powder and hawthorn powder; the guinea fowls raised by the feed grow and develop fast and body types are robust and beautiful; the guinea fowls raised by the feed are big and strong and the morbidity thereof is low; and the guinea fowl feed effectively overcomes the defects of early-stage molting, less pecking, slow growth and development, small stature, light weight, less activity amount, poor palatable performance, high risk of suffering various infectious diseases and easy death of serious cases, which are caused by nutritional deficiency of the traditional feed.

The invention relates to a culture medium for improving germination and growth of Kumaiti Armeniaca vulgaris Lam pollen. The culture medium is prepared by adding gibberellin, naphthylacetic acid, indoleacetic acid or 2,4-dichlorphenoxyacetic acid serving as a growth regulator into agar, sucrose and boric acid which serve as basic culture medium components, or adding potassium nitrate, magnesium sulfate, urea, calcium sulfate, ammonium molybdate, sodium molybdate, ferric sulfate, zinc sulfate or copper sulfate serving as a chemical element into agar, sucrose and boric acid which serve as basic culture medium components in a mass ratio. The culture medium solves the problems of low germination rate of the pollen and slow growth of pollen tubes, and an effective path for improving the germination rate is found for Kumaiti. Through the culture medium, the germination and the growth of Luntai Armeniaca vulgaris Lam pollen are improved; and the culture medium is easy and convenient to operate, low in cost, short in period and high in germination rate, and has wide application prospect in drupe tree biology.

The invention relates to a Carya cathayensis Sarg. container seedling raising matrix, which is formed by blending the following raw materials by weight: 34-44 parts of peat, 25-35 parts of perlites, 25-35 parts of garden soil and 1 part of calcium magnesium phosphate. The fast Carya cathayensis Sarg. container seedling raising method consists of the following eight steps of: first, preparation ofthe container seedling raising matrix according to the weight parts of raw materials, second, seed collection and pretreatment, third, warming and germination acceleration of Carya cathayensis Sarg. seeds, fourth, seed potting, fifth, thermal insulation for overwintering, sixth, top dressing of the seedlings, seventh, grafting, and finally outplanting in December. From seed collection to outplanting, only 16 months are needed for robust grafted seedlings that can be transplanted to a land for growing field crops. The method of the invention overcomes the defects of slow growth speed of Carya cathayensis Sarg., long outplanting time, heavy matrix, and inconvenient ball transplanting on mountains in prior art. The seedling raising cycle is shortened, so that the batches of seedling supply to society can be increased, and the utilization rates of a thermotank, a seedbed, a greenhouse and other equipment can also be improved, thus substantially increasing the economic benefits of seedlingproduction units.

A preparation method of black-bone chicken feed, which is composed of: corn flour, bran powder, bean cake powder, apple powder, bitter gourd powder, pine needle powder, pineapple powder, pumpkin powder, loofah powder, garlic powder, hawthorn powder, salt, almond powder , walnut powder, safflower powder, asparagus powder, bellflower powder, malt powder, tangerine peel powder, and the percentages described are percentages by weight; effectively overcome some breeders and large-scale breeding farms when black-bone chickens are raised due to lack of nutrition. Pecking hair, dull coat color, slow growth, small size, light weight, loose feathers, less activity, easy to get sick, easy to die.

The present invention discloses one kind of plant growth nutrient liquid and its preparation process. During growth of plant, cell and tissue will produce active oxygen and the active oxygen should be eliminated timely to avoid plant presenility, slow growth or death. The enzymatic defense system protecting enzyme can eliminating active oxygen to promote plant growth, and the present invention compounds the plant growth nutrient liquid with SOD and other nutritious matters. The plant growth nutrient liquid has powerful antioxidant capacity and can lower active oxygen content in crop to reduce harm of active oxygen on crop. The present invention is used in tobacco, cotton, fruit tree, vegetable, etc. to reach the effects of raising yield and quality.

The invention discloses an under-forest planting method for paris polyphylla. The problem that in the prior art, paris polyphylla planted with an existing under-forest paris-polyphylla planting method easily suffers from pest damage to cause slow growth is mainly solved. Places that the rainfall is adequate, plants are distributed on the heights of all layers of the earth surface, air movement is good, temperature changing and humidity changing are stable are selected; leveling is carried out, ridges are made, matured fertilizer is added to serve as base fertilizer, and paris polyphylla seedlings are planted; in the second year, medicinal-material special fertilizer is started to be applied; the paris polyphylla seedlings are planted for four years and then dug with the old-left-bud cutting method. According to the scheme, the aims that growing is rapid, and pest damage is resisted are achieved, and the under-forest planting method for paris polyphylla has the quite high practical value and the popularization value.

The invention provides a pollution-free microptenus salmoides cultivation method which is capable of solving the problems of low survival rate and slow growth speed in the prior art. The pollution-free microptenus salmoides cultivation method comprises the following steps: 1), rearing pond construction; 2) fish fry stocking; 3) feeding management; 4) prevention and treatment of diseases; and 5) daily management. The microptenus salmoides are cultivated according to specifications and body length, so that occurrence of a phenomenon that the microptenus salmoides kill one another is completely eradicated to a certain degree; fresh and palatable baits are adopted, so that the growth speed of the microptenus salmoides is relatively rapid, meanwhile freshness and rich dissolved oxygen of water in a pond are ensured, and a comfortable growth space is provided for growth of the microptenus salmoides.