412results about How to "Good growth" patented technology

The present invention discloses a fermentation plant leaf breeding pig feed, wherein raw materials of the feed comprise, by weight, 160-170 parts of corn, 20-30 parts of soybean meal, 10-20 parts of fermentation plant leaves, 5-8 parts of wheat bran, 8-12 parts of tea leaf residues, 5-10 parts of orange residues, 4-6 parts of slag , 4-6 parts of maifanite, 4-6 parts of a premix, 0.03-0.05 part of methionine, 04-0.5 part of lysine, 0.2-0.3 part of gravy salt, 0.2-0.3 part of allitricin, 0.05-0.15 part of multivitamin, 0.01-0.015 part of phytase, and 3-4 parts of Chinese herbs. According to the present invention, the fermentation plant leaves, the maifanite, the tea leaf residues, the orange residues, the slag and other raw materials are added to the formula, such that palatability and nutrition of the feed and feed intake of the breeding pig can be enhanced, a growth state of the breeding pig can be improved, growth requirements of the breeding pig can be met, pig meat quality can be improved, and good effects are provided for digestion promotion, feed utilization rate improvement, weight increase per day of chicken, economic benefits and the like.

The invention discloses a constructing method of stem cell breeding and differentiation microenvironment in vitro in the stem cell tissue engineering domain, which comprises the following steps: adopting sodium alginate and polylysine as material to prepare APA microencapsulation ES cell; adding microencapsulation ES cell in the ES growing culture medium; stewing at 37 Deg C in the culture box with 5% CO2; changing culture medium every 2-3d to obtain the product. The invention simplifies the operation to generate high-density and large scale augmentation, which can inhibit or delay the oriental differentiation for ES cell.

The invention discloses a piglet feed capable of strengthening immunity and a preparation method of the piglet feed. The piglet feed is prepared by mixing the ingredients of corn, vinegar residue, extruded soybean, litsea coreana powder, modified sweet potato vine bran, winter daphne and the like with Chinese herbal medicine according to certain parts by weight. A composite acidifier is added in the preparation method of the modified sweet potato vine bran piglet feed disclosed by the invention, so that the appetite of a piglet can be stimulated; food-intake of the piglet is increased; adsorption of the piglet on nutritional ingredients is facilitated; the disease resistance of the piglet is increased, and the quality guarantee period of the feed is long. The common antibiotic is replaced by the ingredients of the Chinese herbal medicine; removing of endotoxin of the piglet is facilitated; a good growth state of the piglet is kept; and the piglet feed can prevent and treat diseases, the piglet grows rapidly, the quality of the pork is improved, and the pork is suitable for being eaten by people.

The invention relates to the technical field of intelligent irrigation, and provides an irrigation method and device based on machine learning, and the method comprises the steps: reading environmentdata which comprises weather, soil humidity and plant growth condition data; performing feature engineering processing on the environment data to obtain prediction variable data; sending the prediction variable data to an irrigation effect prediction model, the irrigation effect prediction model being obtained based on labeled historical data training, the label being generated by using a manual method or a machine learning method; obtaining a target variable value output by the irrigation effect prediction model, and generating an irrigation scheme by utilizing the target variable value; andsending a control signal to the water outlet valve with the specified number according to the irrigation scheme. The irrigation opportunity is modeled and controlled based on plant growth conditions and environmental factors, the problem that irrigation cannot be carried out at the optimal opportunity through manual decision making or decision making based on a single environmental factor can be solved, the crop yield can be ensured, and labor and water resources are saved.

The invention provides a method for starting and efficiently operating a flocculent sludge and granular sludge coexisting autotrophic nitrogen removal system. The method comprises the following steps: firstly, inoculating a sludge from partial nitrification and from an anaerobic ammonium oxidation reactor, gradually increasing the concentration of influent ammonia nitrogen under the condition of intermittent aeration, starting, and changing the aeration mode into a continuous aeration mode by shortening the time of the anaerobic stage, so as to start a one-step autotrophic nitrogen removal system. After the starting is successful, a stable microbial community structure is created through a method of controlling the proportion of the flocculent sludge and the granular sludge, and the reaction period is adjusted according to the operation condition of the system to achieve efficient nitrogen removal of the system. The starting mode provided by the invention is fast and simple, the created system operates stably and efficiently, and the method is of important reference significance for the operation of the one-step autotrophic nitrogen removal system and other flocculent sludge and granular sludge coexisting systems.

The invention discloses streptomyces albidoflavus Actin-1. The streptomyces albidoflavus Actin-1 can grow and propagate with apple tree rot pathogenic bacterium mycelium as nutrition, long-term colonization of biocontrol bacteria on apple tree rot scabs is promoted, a long-term biological prevention and treatment function is achieved, meanwhile, the streptomyces albidoflavus Actin-1 is induced to generate multiple ectoenzyme cell wall hydrolytic enzymes, and pathogenic bacterium cells disintegrate in combination with the enzyme dissolving function; high antibacterial active matter can be generated, the bacteriostasis rate on the apple rot pathogenic bacteria is 89.82%, a good antibacterial effect is achieved on botryosphaeria berengeriana and other pathogenic bacteria, the bacteriostasis rate ranges from 76.08% to 87.10%, and broad spectrum bacteriostasis performance is achieved. The streptomyces albidoflavus Actin-1 is adopted as main biocontrol bacteria for preventing and treating the apple tree rot and other fruit and vegetable pathogenic bacteria, and the advantages of being good in prevention and treatment effect (100%), high in efficiency, low in recurrence rate (0), high in environment adaption capacity, high in stability, not likely to generate resistance to drugs and the like are achieved. Important significance is achieved on improving the prevention and treatment effect on the apple tree rot and other fruit and vegetable pathogenic bacteria, preventing pathogenic bacterium relapse and protecting the environment.

The invention discloses a constructing method and application of a koi brain cell line. The constructing method includes: placing koi brain tissue in digestive liquid A containing collagenase and trypsin for digestion; collecting cells; adding into digestive liquid b containing EDTA-4Na for digestion; performing primary culture and secondary culture after the cells which are digested are collected to obtain the koi brain cell line. Aiming at features of koi brain tissue cells, a digestion method combining collagenase with trypsin is adopted to separate tissue cells for primary culture, the koi brain cell line is constructed successfully and continuously transferred to more than 100 generations already, and a lot of koi brain source cells can be provided; the cells can maintain good growing state, so that the cells can be freeze-stored. The koi brain cell line is sensitive to koi herpes viruses with cytopathy occurring after being exposed to the viruses, and proliferated virus particles can be found through electron microscope observation. And the koi brain cell line can be directly applied to pathogenic characteristic study and vaccine development.

The invention provides a fattening goose feed and a preparation method thereof. The fattening goose feed is composed of the following raw materials in parts by weight: 20-30 parts of corn meal, 20-30 parts of extruded bean pulp, 5-10 parts of fish meal, 8-15 parts of bone tankage, 0.1-0.5 part of calcium hydrogen phosphate, 2-5 parts of table salt, 3-5 parts of soybean oil, 0.5-1 part of decavitamin, 0.5-1 part of compound amino acid, 0.1-0.4 part of micro-ecological enzyme preparation and 0.5-2 parts of traditional Chinese medicine additive. The fattening goose feed provided by the invention is reasonable in formula, complete in nutrition, capable of fully meeting the growth requirements of geese and promoting the healthy growth of the geese and is free of antibiotic, and the contained effective traditional Chinese medicine additive is beneficial to eliminating endotoxin of the geese to keep the good growth state of the geese and preventing diseases of the geese; according to the fattening goose feed, the geese can fast grow and the feed conversion ratio is increased.

The invention relates to an algae cultivation technology suitable for shallow sea huge-wave torrential-current sea areas, in particular to algae wind-wave resisting rope sinking type cultivation facility and method, which aim at solving the problem that raft culture algae seedlings are seriously lost in larger wind-wave sea area. The facility is provided with a seedling rope, a drop stone and a floating ball; one end of the seedling rope is tied with the floating ball or other floating bodies, and the other end of the seedling rope is tied with the drop stone or objects made of other materials; and the seedling rope is fixed with algae seedlings. When the algae is thrown, the seedling rope is orderly arrayed on a boat; when the boat reaches a cultivation water area, the boat speed is keptconstant and the algae seedlings are sequentially thrown; and the algae is harvested by a multitooth harrow or partly harvested by divers under water, thereby multiple cultivation can be realized. Theinvention not only ensures that the algae seedling rope completely keeps away from the influence of sea water, wind and wave on the upper layer, avoids the loss of algae cultivation caused by severeweather, but also ensures that the algae can be cultivated in open sea areas or sea areas on the periphery of islands with smoother water current exchange and clean water quality and can be suitable for shallow sea cultivation of small-medium economic algae.

The invention relates to a method for producing rotavirus vaccines in large scale by utilizing a bioreactor, and in particular relates to a method for culturing rotavirus inactivated vaccines in large scale by utilizing a 75L bioreactor. The method comprises the following steps: (1) carrying out reviving and passage on Vero cells; (2) collecting the cells and inoculating the cells into the bioreactor; (3) culturing the cells in the bioreactor; (4) changing the liquid and washing the cells; (5) activating and infecting rotaviruses; and (6) carrying out maintenance culture and harvesting on the rotaviruses. The method aims at overcoming the defect that in the large-scale production, the rotaviruses can not release cells easily, so that the obtained viruses are low in toxicity titer, and the inactivated rotavirus vaccines with high titer and high yield are obtained; the method also aims at overcoming the defect that in the large-scale production, the adsorption force and infection force of the rotaviruses are poor, and thus the yield and quality of the rotaviruses are greatly improved.