94 results about "Pastoral area" patented technology

A method for rotation grazing of the goat in the artificial grassland includes choosing proper varietis of herbage and forage crops, building artificial grass land, dividing the grassland into isolated multiple areas, and rotation grazing. Its advantages are high-quality herbage, and ecological protection.

The invention is feed suitable for supplementary feeding of tibetan sheep ewe in pregnancy in alpine pastoral areas of tibetan plateau and a preparation method thereof, and is characterized in that corn, highland barley, table salt, a composite premix, and a rape cake are scientifically blended according to the nutritional requirement characteristics of tibetan sheep in pregnancy, and are processed into particle feed which is suitable for feeding and transportation and is used for correct supplementary feeding of tibetan sheep ewe in pregnancy. According to the invention, a supplementary feeding formula which is determined to be suitable for local agricultural and sideline product resource conditions and the nutritional requirement characteristics of tibetan sheep is adopted; by supplementary feeding of ewe in late pregnancy, the nutritional requirements of a fetus for rapid growth are met, and thus the survival rate of lambs is effectively increased. Meanwhile, an important local agricultural and sideline product of a rape cake is made full use of to reduce production cost, and particles are prepared which can overcome practical difficulties of far transportation distances and dispersed feeding sites, and are suitable for popularization and application in alpine pastoral areas of tibetan plateau.

The invention belongs to the technical field of grassland insect pest monitoring and early warning. The invention discloses an alpine pastoral area grassland insect pest monitoring and early warning system and method based on big data. The alpine pasturing area grassland insect pest monitoring and early warning system based on big data comprises a grassland monitoring module, a grassland growth vigor judgment module, an image processing module, a central control module, an insect pest identification and judgment module, an insect pest estimation module, an insect pest early warning module, aninsect killing module, a driving module, a big data processing module, a data storage module, a wireless communication module, a power supply module, a terminal module and a display module. By adjusting the contrast enhancement parameter, the result grassland image is determined according to the adjusted contrast enhancement parameter, and the accuracy of the contrast enhancement parameter is improved, so that the grassland image enhancement effect is improved; accuracy calculation is carried out on the prediction model according to the collected actual value and the prediction value, the prediction model can be evaluated, and data support is provided for optimization of the prediction model.

The invention discloses a production method of colloidal gold immunochromatography test paper strip for detecting canine Echinococcus granulosus infection. The production method comprises the following steps: cloning, expressing and purifying an EdiagA864 recombinant protein, preparing and purifying a monoclonal antibody and a rabbit polyclonal antibody, sintering a colloidal gold solution by using a trisodium citrate reducing technology, labeling the monoclonal antibody with colloidal gold to produce a colloidal gold pad, and assembling the test paper strip, and using Echinococcus granulosus EdiagA864 polyclonal antibody as adetection line and a goat anti-mouse antibody as a quality inspection line. The test paper strip has the characteristics of fastness and convenience in operation, no special devices, clear detection result, rapid judgment, and suitableness for clinic and onsite rapid diagnosis and large-scale epidemiology investigation of pastoral areas. The test paper strip has high specificity and sensitivity; and the method uses Echinococcus granulosus EdiagA864 monoclonal antibody and polyclonal antibody sandwich, the monoclonal antibody guarantees the specificity of the method, and the polyclonal antibody improves the sensitivity of the method. Compared with traditional arecoline catharsis methods, the test paper strip has the advantages of guaranteeing of the safety of detection personnel, and avoiding of egg infection.

The invention relates to a removable multi-energy air-dried mutton and beef processing apparatus applicable to agricultural and pastoral areas. The apparatus is simple in structure and convenient to operate, does not need external power and is applicable in different climate conditions and different areas. The apparatus is very suitable for processing of air-dried mutton and beef in agricultural and pastoral areas, and also can be moved to different places for processing work. The apparatus is capable of automatically adjusting the temperature in the apparatus. The apparatus provided by the invention mainly helps to solve the disadvantages that conventional processing manners of air-dried mutton and beef are bad in health safety and products are unstable in quality, also helps to provide convenience for herdsman production and life, and helps to furthest utilize the energy resource of the local.

The invention relates to a solar energy bale drying apparatus mainly composed of a round bale drying box, a square bale drying box, an air supplying pipe, a steering gear, a solar energy air heat collector and a fan, the round bale drying box and the square bale drying box are respectively connected with the air supply pipe, the air supply pipe is connected with an air outlet of the fan, an air inlet of the fan is connected with the solar energy air heat collector. The round bale drying box is composed of a round bale upper air duct, a round bale middle air duct, a round bale lower air duct, a round bale lifting oil cylinder and a round bale wind connecting pipe. The square bale drying box is composed of a square bale upper air duct, a square bale middle air duct, a square bale lower air duct, a square bale lifting oil cylinder and a square bale wind connecting pipe. The invention provides a solar energy bale drying apparatus for drying the forage bale in the wide pastoral area and the area where the economy is relatively fallen behind and the energy is in the shortage.

The invention relates to a technical method for arctic-alpine pasturing area around-house local-condition-oriented grass seed selection and planting and pasture harvesting and storing, in particular to arctic-alpine pasturing area around-house artificial grass planting technology, and solves the problem of shortage of fodder grass in winter and spring of arctic-alpine areas. The whole-set technology includes the steps of address selection for around-house artificial grass planting, selection of locally-excellent grass seed-highland barley for sowing, and local-condition-oriented fertilizing, irrigation management and harvesting and storing under arctic-alpine weather conditions. By the technology, utilization efficiency of pasturing area grassland and pasture yield can be improved, water loss and soil erosion can be prevented effectively, and convenience is brought to management and protection; fodder grass in winter and spring can be supplemented through harvesting and storing, so that economic benefit is remarkable.

The invention relates to a technical method for greenhouse building, proper grass seed combining and planting and pasture harvesting and storing in arctic-alpine pasturing areas, in particular to a method for artificial pasture planting in greenhouses in arctic-alpine pasturing areas, and aims to solve the problem of shortage of fodder grass in winter and spring in the arctic-alpine areas. The whole-set method includes: providing greenhouse building parameters according to weather and soil conditions of the arctic-alpine pasturing areas and biological features of pasture; selecting three kinds of pasture including elymus nutans, elymus sibiricus and poa annua which are good in local seed introduction and domestication effect for seeding according to a proportion; performing fertilizing, irrigation management and harvesting and storing suited to local conditions and arctic-alpine weather conditions. By the method, utilization efficiency of weather resources like water, heat and light and pasture yield can be improved; fodder grass in winter and spring can be supplemented through harvesting and storing, so that economic benefit is remarkable.

The invention relates to an embedded revetment of a plateau pastoral area, and belongs to the field of ecological restoration. The embedded revetment comprises a geogrid, an embedded concrete cell, a revetment substrate and revetment plants, wherein the geogrid is of a grid net structure; the geogrid is fixed to a slope of the revetment; the concrete cell is a concrete plate; a plurality of cavities and grooves are formed in one side of the concrete plate; the cavities penetrate through the concrete plate in the plate thickness direction; the side, back to the groove surfaces, of the concrete plate is fixedly connected with the geogrid; the cavities are filled with the revetment substrate; and the revetment plants are planted in the revetment substrate. According to the embedded revetment, defects of ecological revetments in plain areas are overcome, the revetment can resist severe conditions of high, cold and high-altitude areas, hydraulic scouring is effectively prevented, the function of fixing the slope is achieved, stability and landscape requirements of the ecological revetment are met, and the ecological environment of the water source region of Three Rivers is maintained.

The invention discloses a silage bacteria agent for oat grass in an alpine pastoral area. The silage bacteria agent is prepared by 4x109-5x109 CFU / g of pediococcus pentosaceus, 2x109-3x109 CFU / g of lactobacillus plantarum, 0.5-0.6 g / g of starch and mineral elements (0.02-0.04 mg / g of copper sulfate, 0.06-0.08 mg / g of magnesium sulfate, 0.8-1.2 mg / g zinc sulfate, 6.2-6.6 mg / g sodium acetate, and 0.8-1.2 mg / g sodium citrate). According to the silage bacteria agent for the oat grass in the alpine pastoral area, silage lactic acid strains adapting to local environmental conditions are separated and selected from artificially cultivated oat grass and soil in the area, compounding and application evaluation of the silage strains are carried out, the silage bacteria agent suitable for oat grass feeding processing in the alpine pastoral area is developed, the technical demand of high-qualified silage fodder concocting and processing is solved, and the technology level of efficiently conversing and utilizing artificial forage resources is effectively improved.

The invention discloses a livestock stage overgrazing early warning method based on cluster analysis in that field of early war of overgrazing. The livestock overgrazing early warning method based oncluster analysis includes that a locator is arranged on that livestock of the pastoral area to be detected, the locator comprise the locating data of the livestock movement records of the pastoral area, the original trajectory data is cleaned and pretreated, the cleaning comprises the steps of removing irrelevant fields, removing null values, removing duplicate values, removing abnormal values, clustering analysis, and using a classical clustering algorithm k-means to perform basic clustering on the cleaned and pre-processed trajectory data; calculating the grazing intensity, comparing grazingintensity with overgrazing threshold, areas greater than or equal to the overgrazing threshold give an alert, as that trajectory data is accumulate over time, the graze intensity during the ten-day period is accumulatively calculated, and the grazing intensity is calculate based on the positioning data generated by the positioner worn by the livestock during the grazing process, which includes the motion records of the livestock in the pastoral area, and the cluster analysis method is combined to carry out the overgrazing warning.

An all-weather vacuum energy pump thermoelectric power generation heating and cooling water taking system device from air comprises a solar collector, a double-pump radiator, a vacuum energy thermoelectric power generation pump, a breeze generator, a semiconductor refrigeration pump, a cold source toothed wet air condenser, a funnel-type water trap, a charging and discharging controller, a VV storage battery and the like. A new idea is provided to solve the worldwide problem that fresh water is deficient and on the verge of depletion. As energy of the device includes all-weather solar energy and wind energy, the solar energy is used when the sun is available, the wind energy is used when the sun is unavailable, raw materials of the device are moisture air, the device is widely applied, can meet requirements of daily life and is particularly suitable for places with poor water quality, water shortage or water transport inconvenience such as mountain sentry posts of disaster areas or troops, border defense, islands, wetlands, other arid and semi-arid areas and the like, particularly, Gobi deserts can be changed into oases, water supply can be realized in severe environments, people can drink safe and clean drinking water anytime and anyplace, and water used in agricultural and pastoral areas can be supplied.

The invention discloses an organic cultivation method for gramineous pasture in alpine pastoral areas. The organic cultivation method comprises the steps of land selection, soil preparation and fertilizer application, seed selection and planting, filed management, and harvest after maturity; the step of land selection comprises selecting a land parcel with organic certification or an organic certification conversion period, wherein the land parcel is a complete land parcel containing no land parcel of conventional production; the step of soil preparation and fertilizer application comprises uniformly applying a base fertilizer on the ground surface of the selected land parcel, and carrying out soil deep tillage and soil airing on the soil of the land parcel; the step of seed selection andplanting comprises applying a seed fertilizer during a sowing process, and applying the seed fertilizer by using a seed-fertilizer layering sowing machine; and the step of field management comprises applying topdressing before the stem elongation of the pasture, wherein the base fertilizer, the seed fertilizer and the topdressing are selected from farmyard manure, biological organic fertilizers ora combination of the farmyard manure and the biological organic fertilizers, the farmyard manure is prepared by composting and decomposing animal manure, livestock and poultry manure, green manure and straw, and the biological organic fertilizer are approved by a certificate authority.

Provided is a soilless seedling-cultivation device and method for vegetables in gardens of high-altitude agricultural and pastoral areas. The soilless seedling-cultivation device and method are characterized in that the device is of an n-shaped structure and has three layers of cultivation racks and is integrated designed and composed of a steel structure, lighting, heat-preserving, ventilating, irrigating, cultivation bed and power systems; the device uses a seedling-cultivation management method for vegetables in all kinds; the steel structure is composed of a framework, cross beams and the like outside the device; a lighting system is a polyvinyl chloride plastic film lighting surface adopting sunlight as a light source; a heat-preserving system is composed of a double-layer plastic film, an outer-hanging heat-preserving quilt and a heat-preserving pad at the indoor bottom; a ventilating system is composed of mobile ventilating windows and doors on two sides; a cultivation bed system is composed of a polyvinyl chloride plastic film and a cultivation medium; the seedling-cultivation management method for vegetables in all kinds uses an organic medium as the medium for breeding and cultivation of vegetable seedlings so that functions of ventilating, decreasing temperature and eliminating humidity are fulfilled; and lighting daytime is prolonged by means of a movable device. The soilless seedling-cultivation device and method for vegetables in gardens of high-altitude agricultural and pastoral areas have following beneficial effects: the device can be utilizes as effective equipment for production or scientific researches and has a great business prospect.

The invention relates to the field of a pastoral snow disaster resilience evaluation method, in particular to a method for characterizing temporal and spatial characteristics of pastoral snow disasterresilience by a triple exponential model. The method includes the following steps: (1) triple index characterization index and calculation, the triple index is: snow disaster index SI, animal husbandry disaster index AI, geographic disaster reduction index GI; (2) calculating the vulnerability of animal husbandry system; (3) calculating the resilience of animal husbandry system; (4) establishingthe decomposition function of resilience structure of animal husbandry system; (5) spatial expression of triple exponent and resilience. Through a triple index model characterizing the spatial characteristics of snow disaster resilience in a pastoral area, the invention resolves the snow disaster resilience in the pastoral area into a comprehensive effect of triple structural variables of snow disaster index, animal husbandry anti-disaster index and geographic disaster reduction index, and reveals the temporal and spatial variation law of snow disaster resilience and triple structural variables in the pastoral area. The method can provide guarantee for improving resilience and sustainable development of snow disaster in pastoral areas.

The invention relates to a superconductive glass pipe distribution type photo-thermal power generation system. The system comprises a superconductive glass pipe thermal collector, an energy storage device, an STL power generator, and a superconductive auxiliary heater, and is characterized in that: radiation heads of the superconductive glass pipe thermal collector are inserted into thermal transfer sleeves of the energy storage device to store the quickly obtained photo-thermal energy in energy storage liquid and a plurality of energy storage bags of the energy storage device, and three thermal heads of a displacement cylinder of the STL power generator are inserted into the energy storage device to obtain thermal energy and generate power. Compared with the prior art, the system is high in thermoelectric conversion efficiency and low in cost, and is simple and reliable; land is saved; devices of the traditional photo-thermal power generation system such as a distribution station and a current condenser are not needed; the system can be used for power generation and bathing, and is especially suitable for distribution type power generation for families in countryside, pastoral areas and mountainous areas and citizens living in small and medium-sized cities or downtowns; and the pressure of environmental protection and power supply is lightened, and thus the superconductive glass pipe distribution type solar-thermal power generation system is of great significance.

The invention provides a yak Triton production method suitable for a pastoral area. According to the yak Triton production method, yak Triton is produced mainly by a ready-to-use starter and a solar energy hot air drying method. According to the product, the water content is less than 11%, the luminance (L*value) is larger than 82 and obviously higher than traditional Triton (L*value 57-74), the yellow degree (b*value) is less than 18.5 and obviously lower than the traditional Triton (b*value 23-28), 5-HMF is less than 2.1 and obviously lower than the traditional Triton ((18-45)mg / L). In a word, the yak Triton production method is fast in fermentation and drying, the production process is clean and sanitary, labor is saved, and the product is strong in oxidation resistance, good in color, luster and flavor, stable in quality, and the like.

Disclosed is complementary power generation equipment. The complementary power generation equipment comprises a wind power generation apparatus, a photovoltaic power generation apparatus, a wind power and solar power complementary controller, a storage battery pack, electrical equipment, an operating state data acquisition module, a wireless module, a background server, an intelligent mobile terminal, a control module and an image acquisition module, wherein the wind power generation apparatus, the photovoltaic power generation apparatus and the storage battery pack are connected with the wind power and solar power complementary controller separately; the operating state data acquisition module is used for collecting real-time operating state data; the background server is used for transmitting real-time processed data to the intelligent mobile terminal; the intelligent mobile terminal is used for transmitting a control instruction to the background server; the control module is used for receiving and responding to the control instruction; and the image acquisition module comprises a camera shooting unit, an illumination unit and an illumination control unit. The complementary power generation equipment is applicable to application environments which are sparsely populated, far from large power grids, low in electrical load and has inconvenient transportation, such as a communication base station, a microwave station, a border post, a remote pastoral area, an island in the sea, and the like, and the monitoring effect is relatively good.

The invention relates to a forage grass type complete formula pellet feed for fattening sheep and a preparation method thereof. The pellet feed uses Leymus chinensis and / or Urtica cannabina as a key component. According to the invention, Leymus chinensis and / or Urtica cannabina is cooperatively applied to total mixed rations for fattening sheep, so the pellet feed substantially improves amino acid nutrients and PUFA (polyunsaturated fatty acid) deposition in mutton and the concentrations of alhumin and glucose in blood, and promotes absorption and metabolism of energy and nutrients for the fattening sheep; and Leymus chinensis and Urtica cannabina are plants widely distributed in northern grassland and are thus easily available and cheap for farmers in pastoral areas and semi-pastoral areas.

The invention discloses a method for efficient reproduction of yaks and production of dzos. Through group management, nutrition control, oestrus identification and artificial insemination, the femaleyaks can resume the oestrus cycle in an oestrus season to achieve oestrus, mating and conception, a feed supplement standard and an efficient reproduction mode are planned for the female yaks different in reproductive conditions, the estrus rate of the yaks and the dzo conception effect are improved, the production of the dzos is accelerated, the technical and industrial development of efficient breeding of dzos is promoted, thus the problems are solved that the yaks in china are low germplasm performance and the breeding efficiency is low, and the healthy and green development of ecological breeding of the yaks and the dzos in the vast pastoral areas of the Tibet plateau is facilitated.

The invention relates to the technical field of livestock breeding, and especially relates to an intensive fatting breeding method for shortening a fattening period of sheep lambs in a pastoral area. The method specifically comprises the following steps: (1) from birth of a lamb to 28 day old, feeding by breast feeding, from 29 to 70 day old, feeding to transition from breast milk to milk replacer; in 10-70 day old, gradually adding starters; (2) in 71 day old, stopping to feed the milk replacer and the starters, starting to feed fattening granules, in 71 to 180 day old, feeding the fattening granules until the lamb is ready for slaughter. The method is suitable for lamb breeding and intensive fatting in northern pastoral areas, especially for multiple birth lambs and meat-type hybrid lambs, and the method can make lambs rapidly grow and fatten in a health manner, and promotes body condition recovery of a ewe, and shortens breeding cycle.

The invention discloses a phase change constant temperature system of Kazakh yurts in the Xinjiang region. The phase change constant temperature system comprises a solar heat collecting device, a circulating pump, a throttling valve, a phase change heat storage and supplying device and connected pipelines; and the phase change heat storage and supplying device is mainly of a sleeve structure, a circulating working medium flows in the inner circle pipe pass, and an outer circle shell pass is filled with a phase change material. Compared with the prior art, the phase change constant temperaturesystem has the advantages that a traditional yurt heat supplying mode is changed, nighttime furnace combustion harm is reduced, environment pollution and combustion exhaust emission are lowered, the dwelling environment of herdsmen is improved, and the comfort degree of the yurts is increased; rich solar resources of the Xinjiang region are utilized, and by combining with the phase change material, the purposes of energy conservation and emission reduction are achieved; and the phase change constant temperature system is simple in structure, convenient to dismount and mount and suitable for the Kazakh yurts which are set up in search of water and grass in pastoral areas.

The invention provides a jet circulating fluid generator, comprising a magnetic generator, a speed regulation gear mechanism, a water rotary table, a stream guidance jar and a refluence jar, wherein, the inner part of the water rotary table is provided with an impeller, an output shaft of the water rotary table is connected with a rotor of the magnetic generator by the speed regulation gear mechanism, the upper ends of the stream guidance jar and the refluence jar are provided with a pressure adjusting air chamber, an inflator is connected with the stream guidance jar and the refluence jar, one end of a high pressure water pipe is connected with a water outlet valve on the lower part of the stream guidance jar, the other end of the high pressure water pipe is provided with a nozzle which is over against the impeller inside the water rotary table, the two ends of a refluence water pipe are respectively switched in the stream guidance jar and the refluence jar, the water rotary table is communicated with a cushioning ball which is switched in the refluence jar through a cushion water pipe. The jet circulating fluid generator of the invention has simple structure, low production cost and no environment pollution; the jet circulating fluid generator has the characteristics of energy and water saving, safety and convenient maintenance, etc., thereby being suitable for the disperse building and use, especially for the peasant household in remote and mountain areas and pastoral areas.

The invention discloses a preparation method of green corn stalk feed. The preparation method comprises the following steps: harvesting corns when 70 percent ripen leaves are green; internally cutting the leaves and green corn cobs into small segments with the length of 2cm to 6cm; adding 10 times of water into glucoamylase and hemicellulase and uniformly stirring; adding 10 times of water into white sugar, urea and edible alkali and dissolving; spraying two solutions on the small segments of green corn stalks; after turning, blending and airing, covering plastic cloth and sealing and fermenting for 6 to 8 days at room temperature of 25 DEG C to 30 DEG C; when the plastic cloth is uncovered and the green corn segments diffuse a rich wine aroma, showing that fermentation is finished and drying the green corn segments in the sun or drying to obtain a finished product. The preparation method of green corn stalk feed, disclosed by the invention, mainly provides fermented feed, which has abundant nutrients and relatively good palatability, for herbivorous animals in winter and spring; a production method is simple and easy to learn and is suitable for popularization and application in pastoral areas.

The invention discloses a multifunctional intelligent plateau ecological cell house and belongs to the technical fields such as intelligent control, ecological houses and green energy. A transparent conductive film material is used as a cell membrane of the ecological house. Bubble houses or dwellings are used as cell nucleuses of the ecological house. An ecological factor control module, an electric energy supply module, an oxygen supply module, a self-service medicine selling module, a water supply module, an intelligent ecological bathroom module and the like are additionally arranged in the ecological house. The internal environment of the cell house can be constantly kept stable by applying an intelligent control technology. Meanwhile, energy sources are provided for the cell house by adoption of innovative technologies such as an active solar energy utilization technology, a passive solar energy utilization technology, a kinetic energy power generation technology and a temperature difference power generation technology. The ecological cell house is mainly used for bad-weather areas mainly of plateaus, and based on tents generally existing in plateau agricultural and pastoral areas, intelligentization of the cell house is improved, zero energy consumption of the cell house is achieved, and therefore a multifunctional plateau ecological cell house internal environment life sustaining system is provided.

The invention discloses a method of using distiller's grains to make an earthworm feeding matrix. The earthworm feeding matrix comprises, by weight, 45-50 parts of distiller's grains, 30-35 parts of straw, 10-20 parts of excrement, 3-5 parts of rotten fruit and vegetable, 1-3 parts of thermoactinomyces, 0.6-0.7 part of quick lime, 1-3 parts of gypsum powder, 3-5 parts of nutrient solution and 10-15 parts of sandy soil. The method includes pretreatment, prewetting, rotting, decomposing and blending. Starch in the distiller's grains can be converted through fermentation to synthesize nutritionalsubstances which can be absorbed by earthworms, so that spasm of the earthworms is reduced, and macromolecular substances in the distiller's grains can be decomposed into micromolecules to be conducive to being absorbed by the earthworms. The straw is prewetted through distiller's grain extract, so the decomposing process of the straw is accelerated, and content of organic acid and protein is increased. Only a small amount of excrement is added into the matrix, so that difficulty of breeding the earthworms in non-pastoral areas is lowered. The matrix prepared by the method can guarantee healthy growth of the earthworms, so that quality of the earthworms is ensured.

The invention relates to the technical field of sanitary public pit toilets, and particularly relates to an ecological sanitary public pit toilet for plateau severe cold farming and pastoral areas. The ecological hygiene public pit toilet for plateau severe cold farming and pastoral areas comprises toilet rooms for men and women, an excrement outlet of an excrement and urine diversity type toiletstool arranged in the toilet chamber is connected with the first excrement tank reactor chamber; a manure pit reactor chamber II is arranged on the adjacent side of the manure pit reactor chamber I; wherein an excrement passing opening and an inter-chamber flashboard are arranged between the first chamber and the second chamber of the excrement pool reactor, heat coils are arranged at the bottomsof the first chamber and the second chamber of the excrement pool reactor, phase change heat storage structures are arranged at the lower parts of the first chamber and the second chamber, and the phase change heat storage structures are provided with heat coils which are communicated with a heating medium circulating pump and a solar heat collector through water distributing and collecting devices. And the manure pit reactor chamber I and the manure pit reactor chamber II are provided with air inlet pipes, exhaust pipes and exhaust fans. And the pit toilet is powered by a self-contained wind-solar hybrid power supply system. The invention provides a sanitary public pit toilet which is suitable for plateau severe cold farming and pastoral areas, free of water supply, water drainage, powersupply and heat supply and capable of collecting and operating excrement and urine separately.

The invention belongs to the field of animal husbandry, and provides a grazing method for producing mutton rich in natural DHA. According to the method, sheep are grazed in different periods of time and are grazed continuously for 3-5 hours every afternoon, different supplementary feeding is provided in different seasons, and the grazed sheep are preferably Tibetan sheep. The technical scheme of the invention is low in cost and simple and easy to implement, only involves grazing time and simple supplementary feeding, needs small investment in manpower and facilities, avoids the use of any additive, and is not subject to regional restriction. The method is especially applicable to the pastoral areas in the Qinghai-Tibet plateau and the agriculture-nomad areas, and is a win-win method which not only can improve the precipitation amount of DHA and EPA (eicosapentaenoic acid) in mutton, but also can reduce the livestock carrying pressure on the grassland.