133results about How to "Ammonia reduction" patented technology

A biologic deodoring and cleaning agent for treating the refuse to prepare fertilizer and cleaning and activating water area contains high-safety yeast, lactobacillus, nitrogen-fixing bacteria, functional bacillus, and photosynthetic bacteria.

A flue gas desulphurization denitration method adopting two activated-carbon adsorption columns (1, 2) in series connection and comprising a flue gas temperature control apparatus and a device therefor are provided. The method includes I) a step of flue gas temperature control and II) a step of desulphurization and denitration, wherein the step of flue gas temperature control comprises (1) a step of subjecting flue gas to first time of cooling by feeding cold air into a flue conveying high-temperature flue gas to activated-carbon adsorption columns from a cold-air inlet at an upstream position (P1) of the flue, (2) spraying cooling water or cold water mist into the flue gas in the flue from a process water spray nozzle at the downstream position (P2) of the position (P1) from which the cold air is fed, and allowing the flue gas to flow along the flue to the adsorption columns, and (3) feeding diluted ammonia gas into the flue gas in the adsorption columns after the flue gas is fed into gas feeding chambers of the adsorption columns. The temperature of the flue gas fed into the adsorption columns is controlled by mixing with the cold air and spraying water. The two activated-carbon adsorption columns (1, 2) in series connection are adopted to significantly increase the denitration efficiency of the device.

The present invention discloses a microbial feed additive. It is made up by using carrier, protein feed, rice bran or wheat bran, cane sugar, bone powder or shell powder, white peony root, acanthopanax root, aspidium and fermenting agent through a certain preparation process. The above-mentioned described carrier can utilize waste material obtained by cultivating edible mushroom. Said additive can raise utilization rate of feed by 20%-30%, and can promote animal growth and development.

Belonging to the premix field, the invention relates to an additive premix for laying hens. The premix of the invention mainly contains: soybean meal, calcium hydrogen phosphate, stone powder, salt, compound vitamin, nicotinic acid, D-calcium pantothenate, biotin, choline chloride, copper sulfate, ferrous sulfate, zinc sulfate, manganese sulfate, potassium iodide premix, sodium selenite premix, ethoxy quinoline, phytase, microecologics, xylo oligosaccharide, bentonite and rice husk. With xylo oligosaccharide and a plurality of probiotics and without antibiotic, the premix in the invention hasa reasonable formula and high viable bacteria content. Animal feeding experiments prove that the additive premix in the invention has ideal feeding effects. The ammonia concentration, the death and culling rate, and the broken egg rate can be reduced, while the laying rate and egg weight are enhanced. The composite premix provided in the invention can well promote the laying performance and health status of laying hens, and meet the needs of mass raising households, and is suitable for green and healthy culture so as to produce pollution-free egg products.

The invention relates to a culture medium for breeding earthworms and a stereoscopic earthworm breeding method and device and belongs to the technical field of earthworm breeding. The culture medium is prepared through the following method that firstly, a base material and EM bacterium liquid are mixed, humidity is adjusted to 80%-90% to obtain a mixed material, and the base material is mainly composed of livestock feces, coarse fiber materials and sludge; secondly, the mixed material is subjected to closed anaerobic fermentation for 22-26 h, and after temperature is lowered to 28-32 DEG C, the EM bacterium liquid is added to continue the closed anaerobic fermentation for 22-26 h, and a fermented material is obtained; and thirdly, net bags are filled with the fermented material, and after compacting, the culture medium is obtained after piling and thorough decomposing are performed for 1-3 days. The culture medium achieves that pollution is treated through cultivation and achieves effective recycling of organic solid waste, nutrient substances in the base material are reserved to the maximum extent, and the culture medium is suitable for growing and breeding of the earthworms; and a three-dimensional stereoscopic space is provided for activity and breeding of the earthworms, adult earthworms are not needed to be separated manually, and intensified stereoscopic breeding of the earthworms in a greenhouse or in an indoor environment can be achieved easily.

The invention discloses a dynamic nutrition feeding method for improving nutrition metabolism of pig organisms. The method comprises the steps as follows: A, raw materials are selected, and daily rations A with nutritional levels of corresponding stages are prepared; B, daily rations B with reduced nutrient levels of crude protein, crude fat and salt are prepared on the basis of the step A, and the daily rations B comprise corn, bean pulp, wheat, wheat bran, corn DDGS (distillers dried grains with soluble), calcium hydrophosphate, rock flour, lysine 98, soya-bean oil, baking soda, salt and fodder A and fodder B which are prepared by the crude protein, the crude fat and the salt; C, the pigs are fed with different daily rations in the morning and in the afternoon, and the pigs are fed with the daily rations A during the time period from seven o'clock to twelve o'clock in the morning; and D, feeding is performed twice a day, and the feeding amount of the morning as well as the feeding amount of the afternoon accounts for a half of the total amount of the day. The method is feasible and the operation is simple and convenient; the problems of absorption and antagonism among nutrient substances and the like are avoided, and metabolism utilization of the pig organisms to the nutrient substances is effectively improved; the feeding cost is reduced, the production performance is improved, and the feed reward is increased; and pollution caused by harmful gases such as ammonia gas and the like in air of a pigsty and excreta to the environment can be reduced.

The invention discloses a preparation method of corn processing by-product fermented feed and a used composite microbial agent. The fermented feed is prepared through fermentation of the composite microbial agent containing Bacillus subtilis, Saccharomyces cerevisiae and Lactobacillus acidophilus as well as fermentation raw materials, has a special sour and sweet smell, has good palatability and can be absorbed and utilized by animals easily. The increment of the daily milk yield of dairy cows fed with the fermented feed is increased, the number of somatic cells in milk is reduced, the average daily gain of each mutton sheep fed with the fermented feed is increased, animal waste has a good shape, and the ammoniac odor and other odors are reduced. Low-quality by-products produced during processing of corn are treated with the microbial fermentation technology, many macromolecular substances are degraded, biological feed products containing active substances such as probiotics, active enzymes and the like are obtained, waste is turned into wealth, protein resources are increased, grains are saved, and an effective path is provided for solving of the environmental pollution problem.

The invention discloses feed additives for improving the reproductive performance of breeding fur-bearing animals. The feed additives are prepared from composite Chinese herbal medicine extracts, pine needle meal, arginine, tocopheryl acetate, beta-carotene, biotin, folic acid, soy isoflavone, dihydropyridine, vitamin C, selenium yeast, organic chromium, oligosaccharides, biological active peptide, non-starch polysaccharide enzyme, amino acid chelated microelements and microecologics, wherein composite Chinese herbal medicine is prepared from epimedium brevicornu maxim, gynostemma pentaphylla, semen cuscutae, eucommia ulmoides, mulberry, polygonum multiflorum, radix rehmanniae preparata, astragali complanati semen, fructus liquidambaris and radix glycyrrhizae. By scientifically preparing composite Chinese herbal medicine extracts and various raw materials, the synergic effect of 1+1>2 is achieved, the product effect is remarkable, the reproductive performance of breeding fur-bearing animals such as minks, foxes and raccoon dogs can be remarkably improved, use is safe and convenient, drug residues, drug resistance and other problems do not exist, and wide market prospects are achieved.

The invention relates to an environment modifier for disinfection with dry powder. The modifier is prepared from adsorbent, disinfectant and environment modifier and has multifunctional dry powder formula for disinfecting the piggery, removing peculiar smell in the piggery, preventing neonate pigs from infecting diseases, reducing the humidity in the piggery, drying the neonate pigs rapidly so as to eat colostrums quickly to obtain immunity, preventing endometritis of sow, treating wound, preventing piglet from fighting as a result of ablactation and reducing the diarrhea. The environment modifier for disinfection with dry powder is simple to use, has high efficiency and little use amount, is environment-friendly, has no residual toxicity, remarkably improves the weight and the survival rate of piglet, greatly reduces the working capacity and labour cost and provides guarantee for environment disinfection and epidemic prevention.

The invention discloses a method and device for growth of nitride materials at low temperature through laser assistance. The method comprises the steps that precursor steam of a non-nitrogen element and active nitrogen precursor gas are conveyed to a substrate material at the temperature ranging from 250 DEG C to 800 DEG C in a reaction chamber; a laser beam with the wavelength equal to the length of active nitrogen molecular bond resonance waves is utilized for acting on active nitrogen gas to enable laser energy to be directly coupled to active nitrogen gas molecules; and breakage of NH keys is accelerated, sufficient active nitrogen is provided, the non-nitrogen element chemically react with the active nitrogen, the III group of nitrogen film coating materials are deposited, and sustained action is carried out until a sediment covers a whole substrate and reaches the needed thickness. The device comprises a vacuum reaction cavity, a gas pre-mixing cavity, a wavelength tunable laser device and a moving mechanism. On the basis of improvement in the active nitrogen utilization rate and reduction of the environmental pollution, large-area, rapid and high-quality growth of the nitrogen film coating materials under the low-temperature environment can be achieved.

The invention discloses a strain for high-temperature composting of sludge and the application thereof and belongs to the technical field of microbial fermentation. The strain D1 is Ureibacillus thermosphaericus with the preservation number of CGMCC No.12329. The highest growth temperature of the strain is 80 DEG C, temperature increases fast during fermentation of organic matter such as composted sludge, the duration of high temperature is long, quick multiplication can be achieved in a high-temperature composting environment, organic matter is degraded, composting process is promoted, and all indexes meet the composting discharge standard. The invention further provides a preparing method and application of a composting inoculant prepared from the strain D1. The composting inoculant is low in production cost, stable in quality, capable of being applied to high-temperature sludge composting, environment-friendly, free of pollution, excellent in performance and high in economic benefits and social benefits, and water content of a pile is not increased.

The invention discloses a cultural technology of meat ducks by using a biological fermentation bed, which has no pollution and zero discharge and saves labor and time. The cultural method comprises the following steps of: cultivating by using biological packing materials, wherein beneficial floras of the biological packing materials construct a strong and benign environment; and adsorbing, neutralizing, degrading and converting organic matters in excretion by the biological packing materials. The invention has no obvious odor discharge and no bed washing after selling meat ducks, realizes zero discharge and generates no washing sewage.

The invention provides a W flame boiler of a turbulent burner with an inner direct flow and outer turbulent flow ammonia spraying device and relates to the W flame boiler. The W flame boiler solves the problems that an existing W flame boiler of the turbulent burner is high in NOx discharge amount and low in denitrifying efficiency. The center of a first stage ammonia spraying device is placed atthe upper edge of a front furnace arch or a back furnace arch, the distance L from the center line of a second stage ammonia spraying device to the upper edge of the front furnace arch or the back furnace arch is 1-2m, the center of the first stage ammonia spraying device is located in a same horizontal plane, and the center of the second stage ammonia spraying device is located on a same horizontal plane; the first stage ammonia spraying device and the second stage ammonia spraying device comprise inner tubes, outer rubes and a plurality of turbulent blades, the inner tubes and the outer tubes are arranged coaxially, the plurality of turbulent blades are uniformly distributed between the inner tubes and the outer tubes, the inner tubes are direct flow nozzles, and the plurality of turbulent blades arranged between the outer tubes and the inner tubes are turbulent nozzles which form the ammonia spraying device with an inner direct flow and an outer turbulent flow. The W flame boiler provided by the invention belongs to the technical field of NOx emission reduction.

A flue gas desulphurization denitration method including flue gas temperature control in an activated-carbon adsorption column and a device therefor are provided. The method includes I) a step of flue gas temperature control and II) a step of desulphurization and denitration, wherein the step of flue gas temperature control comprises (1) a step of subjecting flue gas to first time of cooling by feeding cold air into a flue conveying high-temperature flue gas to the activated-carbon adsorption column from a cold-air inlet at an upstream position (P1) of the flue, and (2) spraying cooling water or cold water mist into the flue gas in the flue from a process water spray nozzle at the downstream position (P2) of the position (P1) from which the cold air is fed, adjusting the temperature of the flue gas fed into the adsorption column to be in a preset range of T3, for example, the T3 ranges from 105-150 DEG C. The temperature of the flue gas fed into the adsorption column is controlled by mixing with the cold air and spraying water.

The invention discloses a process of removing sulfur and ammonia from coke gas to prepare ammonia water. On the basis of existing AS methods, ammonia in the coke gas serves as an alkali source, ammonia water containing solution serves as a medium, the ammonia and hydrogen sulfide in the coke gas are removed by cyclic ammonia / sulfur absorption, desulphurizing, ammonia-washing rich solution pressurization, deabsorption and regeneration process, and meanwhile the remaining ammonia water is processed by a low-pressure ammonia distilling tower which takes remaining heat of a system as a heat source, and 5-20% of ammonia water is byproduct in the process. The process comprises an ammonia and hydrogen sulfide absorption part, an ammonia and hydrogen deabsorption part and remaining ammonia water based ammonia distilling part. Clean gas produced by the process can meet requirements of Admittance Standard of Coking Industry, and the process disclosed by the invention has the advantages of short process flow, low operation cost, good resource utilization and good environmental protection effect.

The invention discloses a preparation method of a probiotic feed additive. In the method, liquid spawns containing a variety of microbial communities, solid culture media, molasses and urea are mixed and prepared into the probiotic feed additive via solid fermentation, drying and pulverization; the probiotic feed additive prepared by the method can be added into livestock and poultry feed to promote the growth of the livestock and poultry, enhance the organism immunity of the livestock and poultry and regulate intestinal ecological balance; meat, egg and milk products have no chemical residues, which can meet the requirements of green food; the undesirable odor and ammonia odor of the manure of the livestock and poultry are reduced, flies, maggots and other pests are reduced, and the culture environment is improved.

The invention discloses a method for reducing ammonia in mainstream smoke of cigarettes, which includes: packing tobacco / finished cigarettes with paper cartons with a stacking thickness of 26-72cm and a stacking density of 0.20-0.34g / cm<3>; placing the cigarette cartons on a conveying device at the conveying speed of 0.02-0.3m / s, and subjecting the cartons to electronic beam / X-ray irradiation generated by an electronic accelerator, wherein the electronic accelerator is 5-10MeV in energy, 0.3-20mA in beam current, 10-20kW in beam power, 100cm in largest scanning width, 5-15Hz in scanning frequency, 1-10kGy in irradiation dose and 5-35 DEG C in set operating temperature; allowing the cartons to pass a scanning widow of the electronic accelerator twice for irradiation, wherein the distance from the center of each carton to the scanning window of the electronic accelerator is 40-60cm in irradiation; and limiting the ambient humidity to be no larger than 60% in operation.

The invention discloses a device and a method for recovering ammonia and tert-butyl alcohol in a cyclohexanone ammoximation production process. The device consists of an oximation reaction system, a reaction product pre-separation system, a tert-butyl alcohol rectification recovery system, a reaction tail gas condensation system and a reaction tail gas absorption system. According to the invention, the reaction tail gas absorption system adopts two-stage absorption of tert-butyl alcohol and water, so that the desalted water amount for absorption is greatly reduced, the ammonia, tert-butyl alcohol and water amount to the tert-butyl alcohol rectification recovery system are reduced, the water amount in the cyclohexanone-oxime aqueous solution is reduced, and the toluene circulation amount and energy consumption of a downstream cyclohexanone-oxime refining system are favorably reduced; the reaction product pretreatment system is arranged, so that the treatment load of the tert-butyl alcohol rectification recovery system can be reduced, and the condensation effect of the rectification tower I is improved; double-effect rectification is adopted in the rectification recovery system, anda condensation, absorption and vacuum pressurization combined process is adopted in rectification of non-condensable gas, so that the vacuum load and chilled water consumption are reduced; and the steam consumption can be saved by 40-50%, the cooling water consumption can be reduced by 35-50%, the chilled water consumption can be reduced by 10%, the desalted water consumption can be reduced by more than 50%, the treatment load of related facilities can be reduced, and the energy can be saved.

The invention relates to a preparation method of a biological organic and inorganic mixed liquid fertilizer. The preparation method comprises the steps of evenly mixing materials according to the ratio of EM solid glass Cassie to dried poultry litter to 1% EM stoste being (5-8) to (88-92) to (3-4) (parts by weight), yarding and fermenting for 21-25 days at room temperature, airing until the moisture content is lower than or equal to 30wt%; putting the materials into a fermentation tank according to the ratio of an ingredient to EM active carbon of 1 to 9 (weight ratio); hermetically fermenting for 5-7 days under an intermittent mixing condition; filtering the fermentation liquor to remove insoluble substance to obtain the clear liquid and store; mixing nutrients of nitrogen, phosphorus and potassium in the filtrate, so that the content ratio of nitrogen to phosphorus to potassium achieves the ratio of N to P2O5 to K2O being 1 to 2 to 2.5 (weight ratio), and N+P2O5+K2O is higher than or equal to 110g / L, and storing and bottling the materials. The preparation method disclosed by the invention is fast in fermentation speed, short in preparation period, and high in fermentation degree; the efficient biological organic and inorganic mixed liquid fertilizer can be obtained, and the preparation method has the effects of comprehensive nutrition, high fertilizer efficiency, nuisanceless property and obvious yield-increasing effect of crop.

Compositions of bacteria which are effective for the nitrification of wastewater, particularly at low temperatures, are described. The compositions are comprised of 35 strains or populations of at least partially characterized isolated bacteria. These compositions may be used to treat wastewater contaminated with animal fecal waste and / or ammonia. In use, wastewater is contacted with the bacterial composition of the invention under aerobic conditions and for a period of time effective to oxidize ammonia therein.

The invention discloses a strain for producing colorful nattos and a production process, belongs to the field of fermentation, and in particular relates to the strain for producing the colorful nattos, the production process and sensory evaluation thereof. The invention provides bacillus subtitlis strain with a preservation number of CGMCC No.5860 for producing the colorful nattos. In the implementation scheme of fermenting production of the colorful nattos, the fermenting culture conditions are as follows: the fermenting temperature is within 38 and 40 DEG C, the humidity is within 70 and 90percent, and the fermentation time is within 20 and 30 hours. According to the strain for producing the colorful nattos and the production process, a new strain after mutation breeding is adopted anddifferent beans are adopted as raw materials for producing the nattos, and produced nattos have uniformly covered mycoderm and excellent dietary property.

The invention discloses a complete formula feed for domesticated snakes. The complete formula feed is prepared from the following raw materials in parts by weight: 40 to 90 parts of fish meat, 5 to 40 parts of chicken meat, 5 to 40 parts of duck meat, 5 to 20 parts of flour, 0.1 to 0.5 part of hawthorn fruit powder, 0.05 to 0.5 part of coptis chinensis powder, 0.01 to 0.5 part of astragalus membranaceus powder, 0.05 to 0.5 part of pericarpium citri reticulatae powder, 0.01 to 0.1 part of compound enzyme, 0.001 to 0.01 part of decavitamin, 0.001 to 0.01 part of microelement, 0.001 to 0.005 part of wild silkworm spore fungus, 1 to 5 parts of wheat plant protein powder, 2 to 10 parts of sodium alginate and 2 to 10 parts of calcium chloride. After the domesticated snakes are fed by the complete formula feed, the domesticated snakes have the characteristics of rapid growth, few disease suffering times, good digestive absorption and low parasite infection rate. Thus, the survival rate and the fecundity of the domesticated snakes are obviously improved.

The invention relates to a method for keeping activity of probiotic. The probiotic is adsorbed into holes of microporous starch to generate a microporous adsorbate, and the microporous adsorbate and a mixture of nutrients required by aquatic seedlings form a core material; chitosan is used as a wall material, wherein the chitosan is insoluble in water but soluble in 1 percent lactic acid solution; and a microcapsule is prepared by using a spraying and drying method, the grain diameter of the microcapsule is less than 150mu m, and the ratio of the wall material to the core material is (3-10):100. The method can prevent the inactivation of the probiotic, and can play a role in slow release. The aperture of the micropore is 1mu m; the microporous starch, the ratio of the micropore cavity volume of which to the total volume of the starch is more than 50 percent, is used for adsorbing the probiotic into the holes of the microporous starch; the adsorbate of the microporous starch, which adsorbs the probiotic, is used as the core material; and the chitosan is used as a coating of the wall material. The method has the advantages that the microcapsule prepared by micropore adsorption and envelope can effectively keep the activity of the envelope during processing and manufacturing through experiment so as to develop the application prospect of the probiotic in aquatic feed.

The invention relates to a microbial agent and straw organic feed produced through the microbial agent. A proper quantity of fermentation strains are added into an aqueous solution with herba lycopi and kobold flowers being smashed, so that a microorganism leavening agent is prepared; smashed waste mushroom residues obtained after straw is used as a raw material to produce edible mushrooms are mixed with the microorganism leavening agent according to the weight part proportion of 9 to 1, sterilization, fermentation, drying and pelleting are sequentially conducted on the material after the moisture content is adjusted, and accordingly a microbial agent particle product is obtained. The microbial agent is mixed with straw powder according to the weight part proportion of 1 to 19, sterilization, fermentation, drying and pelleting are sequentially conducted on the material after the moisture content is adjusted, and accordingly a crude fiber straw organic feed product is obtained. The microbial agent is mixed with waste mushroom residue powder obtained after straw is used as the raw material to produce the edible mushrooms according to the weight part proportion of 1 to 19, sterilization, fermentation, drying and pelleting are sequentially conducted on the material after the moisture content is adjusted, and accordingly an edible mushroom waste mushroom residue straw organic feed product is obtained.

The invention relates to a pit-type nitriding furnace. The pit-type nitriding furnace comprises a furnace shell, a furnace cover, an inner furnace container and a wind guide barrel. The inner furnace container is arranged inside the furnace shell. The wind guide barrel with the two ends open is hung in the inner furnace container. A tripod is arranged between the wind guide barrel and the inner furnace container for supporting. The bottom of the inner furnace container is an arc surface. A furnace container bottom board is arranged at the position where the bottom of the inner furnace container and an inner furnace container body are connected and is provided with holes. A draught fan is fixed in the middle of the upper end of the furnace cover. A cooling water tank is arranged between the draught fan and the furnace cover. A heat collection box is fixed to the lower end of the furnace cover. The draught fan is connected with a blade through a shaft penetrating through the heat collection box. The draught fan is arranged on the furnace cover, the wind guide barrel is arranged inside the inner furnace container, and the draught fan and the inner furnace container are matched, so that gas is emitted and circulates from bottom to top and heat inside the furnace is distributed more uniformly. The tripod is arranged between the wind guide barrel and the inner furnace container and further improves the intensity of the inner furnace container, and the inner furnace container can be effectively prevented from deforming.

The invention relates to bacillus coagulans which is preserved in China Center For Type Culture Collection (CCTCC) and has the preservation number of CCTCC M2016440, and application of the bacillus coagulans to a digestion aspect of livestock. The bacillus coagulans has a high lactic acid production capability, promotes digestion on feed of the livestock, and can be applied to the aspect of feeding the livestock. The bacillus coagulans can secrete a lot of lactic acid, thereby effectively inhibiting the growth of harmful bacteria, improving an intestine microenvironment, promoting intestine development, enhancing intestine functions and promoting digestion and absorption on the feed of the livestock. Meanwhile, the bacillus coagulans has good environment stress resistance, can be used for effectively inhibiting the growth of the harmful bacteria, rapidly reducing ammonia gas in the environment and improving a breeding environment, and can be used for carrying out harmless treatment on corpses of the livestock, and deodorization and bacterium inhibition of a livestock farm. The invention further provides a composition for harmlessly treating the corpses of the livestock and a composition for deodorizing and inhibiting bacteria of the livestock farm.

The invention relates to a biological organic fertilizer. An agricultural waste (chicken manure) is converted into the biological organic fertilizer which is nuisanceless, can be applied to the organic cultivation of paddies, and belongs to the technical field of special biological fertilizers for the paddies. The biological organic fertilizer is formed by uniformly mixing and composting the following raw materials in part by weight by means of microbial fermentation: 5-8 parts of EM (effective microorganism) solid Bo Kathy, 88-92 parts of the chicken manure (with a moisture content of 50%-60%), and 3-4 parts of 1% EM stock solution. The biological organic fertilizer has the advantages that the fermentation technique is simple, the fermentation time is short, the composted biological organic fertilizer has complete nutrition and high fertilizer efficiency, is nuisanceless and can replace the application of a chemical fertilizer and a farm insecticide, the capability of the resistance to the diseases and the insect pests of the paddies can be improved, and the quality of paddy rice is improved; and synchronously, the biological organic fertilizer further has the characteristics that the agricultural surface source pollution is controlled in terms of a source, the ecological environment of a paddy field is protected, and the sustainable development of the production of the paddies is promoted. The biological organic fertilizer has an obvious application effect in the production of organic paddies and has wide market foreground and better economic benefit and environmental benefit.

The invention belongs to the technical field of feed and particularly relates to biologically fermented feed and a preparation method thereof. The biologically fermented feed is prepared from raw materials as follows: wheat middling, sorghum, barley, soybean meal, fermented materials, soybean oil and a premix without antibiotics. The quality and flavor of animal products can be greatly improved if the product is used for feeding animals for a long time, and after usage, little excrement, ammonia gas and odor are produced.