CN102919136B - Pig house capable of respectively collecting pig manure and pig urine and wash water - Google Patents
Pig house capable of respectively collecting pig manure and pig urine and wash water Download PDFInfo
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- CN102919136B CN102919136B CN201210452863.3A CN201210452863A CN102919136B CN 102919136 B CN102919136 B CN 102919136B CN 201210452863 A CN201210452863 A CN 201210452863A CN 102919136 B CN102919136 B CN 102919136B
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- 210000002700 urine Anatomy 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 210000003608 fece Anatomy 0.000 title claims abstract description 28
- 239000010871 livestock manure Substances 0.000 title claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 35
- 238000012546 transfer Methods 0.000 claims abstract description 28
- 238000011010 flushing procedure Methods 0.000 claims description 19
- 230000035622 drinking Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000003651 drinking water Substances 0.000 claims description 6
- 235000020188 drinking water Nutrition 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- 239000003344 environmental pollutant Substances 0.000 description 8
- 244000144972 livestock Species 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 244000144977 poultry Species 0.000 description 8
- 238000007599 discharging Methods 0.000 description 7
- 238000009395 breeding Methods 0.000 description 5
- 230000001488 breeding effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 206010059410 Faecaluria Diseases 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003975 animal breeding Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention relates to a pig house capable of respectively collecting pig manure, pig urine and wash water. The pig house capable of respectively collecting the pig manure, the pig urine and the wash water comprises a pig house body, an automatic feeding device and a drinker, and is characterized in that a urine drainage ditch and a sewage drainage ditch are arranged on an outer side of the pig house body, wherein the sewage drainage ditch is arranged on an outer side of the urine drainage ditch. An excrement drainage platform is arranged on a corner of the pig house body, and an excrement accumulation pool is arranged outside a wall opposite to a side of the excrement drain platform. A urine drainage shallow ditch is arranged around the excrement drain platform, and the urine drainage shallow ditch is directly drained to the urine drainage ditch by a urine drainage guide pipe penetrating the wall or drained to the sewage drainage ditch by the urine drainage guide pipe penetrating the wall through see-saw type transfer bridge groove after the urine drainage shallow ditch is connected with a urine discharge ditch in abutted mode along the direction of the wall or a fence. A water drainage shallow ditch is arranged around the drinker and drained to the sewage drainage ditch by a water drainage guide pipe penetrating the wall and crossing the urine discharge ditch after the water drainage shallow ditch is connected with a water drainage ditch in abutted mode along the wall or the fence.
Description
Technical field
The present invention relates to a kind of pig house that can collect respectively pig manure, pig urine and flushing water, is the new way that a kind of piggery pollutant decrement reduces discharging, and belongs to agriculture environmental protection field.
Background technology
In recent years; livestock and poultry scale concentrates cultivation to be rapidly developed, and meanwhile, also brings livestock and poultry fecaluria concentrations and rinse sewage to roll up; because most of plant fails feces of livestock and poultry to carry out effective disposal and utilization, feces of livestock and poultry pollution problem becomes increasingly conspicuous.According to national Pollutant source investigation bulletin for the first time, 2.43 hundred million tons of whole nation livestock and poultry breeding industry ight soil generations, 1.63 hundred million tons of urine generations, main Sewage Water Emissions amount: 1268.26 ten thousand tons of chemical oxygen demands, 102.48 ten thousand tons of total nitrogens, 16.04 ten thousand tons of total phosphorus, account for respectively 41.9%, 21.67% and 37.9% of national Sewage Water Emissions amount.Livestock and poultry pollute the important pollution source that become current agricultural, rural area and water body environment, and for this reason, country is about to put into effect relevant policies, lists plant's pollution reduction one of in important content of national pollution reduction.
For livestock and poultry breeding industry manure contamination, administer, each state is human and material resources and the financial resources of the amount of having high input all, but because plant's pollutant discharge amount is large, pollutant levels are high, and breeding enterprise benefit is relatively low, be difficult to adopt and apply batch production pollution treatment technology and means, therefore, how effectively to reduce plant's generation and discharge capacity, become the important technology the most that aquaculture manure contamination is administered.
Application number is the patent of invention of CN201210223585.4, provides a kind of plant special leakage dropping-board, comprises and leaks dropping-board body, and described leakage dropping-board body is provided with at least two cracks, makes pig manure, urine directly drain to bottom.
Application number is the utility model patent of CN201120342935.X, a kind of improved pig breeding farm is provided, comprise colony house, described colony house bottom is covered with padding layer, and padding layer bottom is provided with anti-leakage layer, in the colony house on padding layer top, be provided with slatted floor, its advantage is: adopt slatted floor, live pig and padding layer are separated to cultivation, make the growth of live pig more comfortable, environment is better, easy to clean.
Application number is the utility model patent of CN200420047247.0, provides the special liftoff crack in a kind of piggery to raise high bed, includes strutbeam, leg and cast-iron slatted plate, and the outside, two ends of cast-iron slatted plate is provided with takes ear; The upper plane layout of strutbeam has sunk type fishplate bar groove, the two ends of strutbeam are provided with T shape inclined-plane enlarged footing wide at the top and narrow at the bottom, the upper end of leg is T-shaped groove trifid structure wide at the top and narrow at the bottom, the two ends of every strutbeam are overlapped in by T shape inclined-plane enlarged footing in the T-shaped groove of leg and make to connect to form cast-iron slatted plate supporter, and the backup plate body place, ear below that takes of crevice board is provided with boss.
Above three patents all propose in pig house to install leaks dropping-board, by the fecaluria bottom that bleeds, saves the pig house flushing of every day, has reduced sewage generation.
Application number is the utility model patent of CN201020681118.2, a kind of water-saving cleaning device that rinses and sterilize for animal-breeding field stop house has been proposed, comprise spray gun, the output cover of spray gun has nozzle, and described water-saving cleaning device also comprises the pressurized air storage device being connected with described spray gun by air-out hose and the water storage device being connected with described spray gun by delivery hose.In this utility model, aqueous vapor, simultaneously from nozzle ejection, had both increased the speed of current, had saved the water yield, and this patent provides a kind of method and apparatus that reduces flushing water.
In addition, the fermentation bed cultivation technology of applying in the many provinces and cities of China at present, also be the effective technical way that a kind of plant pollutant decrement reduces discharging, this technology is based on controlling feces of livestock and poultry discharge and a kind of breeding way polluting, its Basic practice is through in the pig house of particular design, inserts organic bedding and padding, as wood chip, again piglet is put into pig house, pig all lives in above organic bedding and padding to delivering for sale from little.The excreta of pig is absorbed by organic bedding and padding and is degraded rapidly, digests by microorganism wherein, in daily management, no longer needs the excreta of pig to carry out labor cleaning, reaches the object of zero-emission.
The different technologies means that above patent all provides plant's excreta to reduce discharging, wherein adopt the mode of leaking dropping-board, although can reduce punching circle water, but because improving pig house building height and install, needs leak dropping-board, can increase pig house building cost, and the liquid dung of collecting, because of water content, and brings difficulty to subsequent treatment; Adopt fermentation bed to raise pig technology, can reach the target that reduces discharging even zero-emission, but also because of high further the applying of hindering deep-litter systems of bedding and padding cost.In addition all not mentioned method that pig manure, urine and flushing water are separated and means of all patented technologies.
Summary of the invention
Technical problem
The object of the invention is to: in order to solve piggery excrement, urine and flushing water separate collection and the technical problem of processing and utilizing respectively, reach the object that piggery pollutant decrement reduces discharging.
Technical scheme
The object of the present invention is achieved like this: a kind of pig house that can collect respectively pig manure, pig urine and flushing water, comprise pig house, self-feeder, drinking bowl, it is characterized in that: in an outside of pig house, be provided with urine discharge ditch and sewage discharge ditch, wherein, sewage discharge ditch is positioned at the outside of urine discharge ditch; At an a corner for pig house, have defecate platform, corresponding to the wall of defecate platform one side, be provided with ight soil outward and pile up pond; At defecate platform periphery, be provided with the shallow ridges of urinating, after the shallow ridges of urinating docks with along the ditch of urinating of wall or jube trend, urine directly enters urine discharge ditch by the conduit of urinating through body of wall, or flushing water enters sewage discharge ditch by the conduit of urinating through body of wall by seesaw type transfer bridge groove; At drinking bowl periphery, be provided with draining shallow ridges, after draining shallow ridges dock with along the drain ditch of wall or jube trend, then enter sewage discharge ditch by the drainage duct that passes body of wall and cross urine discharge ditch.
In the present invention: defecate platform is that area is 0.5～1.0m
2the cemented platform of any surface finish, its height maintains an equal level with the drinking-water region of searching for food; The water conservancy diversion direction of draining shallow ridges, drain ditch and the fixing drainpipe connecting successively tilts toward sewage discharge ditch; The shallow ridges of urinating connecting successively, the water conservancy diversion direction of urinate ditch and the conduit of urinating tilt toward urine discharge ditch.
In the present invention: the equal semicircular in shape in bottom of described urinate shallow ridges and draining shallow ridges, their ditch depth all≤10mm, ditch suitable for reading wide all≤50mm.
In the present invention: described seesaw type transfer bridge groove refers to: the transfer bridge groove that a diameter is greater than the conduit of urinating is installed below the conduit of urinating, transfer bridge groove opening up, cross section semicircular in shape, it extends to sewage discharge ditch by the below of the conduit of urinating; The middle part of transfer bridge groove is by fulcrum support between urine discharge ditch and sewage discharge ditch, and one end of pull rope is fixedly connected with one end of transfer bridge groove, in one end of transfer bridge groove, during higher or lower than the other end, the pull rope other end of crossing exterior wall is fixed in pig house.
In the present invention: the material of described seesaw type transfer bridge groove is PE or PVC.
In the present invention: the material of described seesaw type transfer bridge groove is natural mao bamboon.
Beneficial effect
The invention has the advantages that: utilize the life habit of pig, by the method for artificial domestication, guiding live pig concentrates on to enclose on inner platform and voids excreta, and by excrement and urine separate collection, avoids fecaluria to mix, and is convenient to colony house and sweeps and rinse, and reduces washing water quantity; Set up drainage shallow ridges, will drip from drinking bowl, and leak to branch to and give up outer rain rill, reduce sewage quantity; The Cao Qiao that crosses that can sling is installed at end-of-the-pipe, flushing water and urine are separated and be drained to rain rill, reduce sewage quantity; In addition, after excrement, urine are separated with flushing water, collect, be convenient to processing and the recycling of follow-up excrement, urine and flushing water, minimizing construction is for cultivating the dirty investment of processing setting and equipment of excrement.
Technology indicators of overall performance of the present invention is with the advantage of similar technology comparison: by excrement, urine separate collection, can reduce piggery wash water more than 30%, flushing water and urine are collected respectively, can reduce the storage of excrement sewage and processing unit volume more than 50%; The present invention can be applicable to the piggery of different scales, adopts the technology of the present invention, and one-time investment is few, easy and simple to handle, safeguard that simple cost is low, and plant's excretion pollutant is easy to process and recycling, can make piggery pollutant decrement reduce discharging.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the embodiment of the present invention
In figure: 1, pig house door, 2, self-feeder, 3, drinking bowl, 4, drinking water pipeline and drinking-water nipple, 5, drain ditch, 6, fixing drainpipe, 7, sewage discharge ditch, 8, defecate platform, 9, pig manure; 10, ight soil is piled up pond, and 11, the ditch of urinating, 12, seesaw type aqueduct bridge, 13, urine discharge ditch.
Embodiment
Accompanying drawing discloses the concrete structure of the embodiment of the present invention without limitation, below in conjunction with accompanying drawing, the present embodiment is further described.
As seen from the figure, the present invention is a kind of pig house that can collect respectively pig manure 9, pig urine and flushing water, comprise pig house, self-feeder 2, drinking bowl 3 and pig house door 1, in an outside of pig house, be provided with urine discharge ditch 13 and sewage discharge ditch 7, wherein, sewage discharge ditch 7 is positioned at the outside of urine discharge ditch 13; At an a corner for pig house, have defecate platform 8, corresponding to the wall of defecate platform 8 one sides, be provided with ight soil outward and pile up pond 10; At defecate platform 8 peripheries, be provided with the shallow ridges of urinating, after the shallow ridges of urinating docks with along the ditch 11 of urinating of wall or jube trend, by the conduit of urinating through body of wall, directly enter urine discharge ditch 13, or by seesaw type transfer bridge groove 12, enter sewage discharge ditch 7 by the conduit of urinating through body of wall; At drinking bowl 3 peripheries, be provided with draining shallow ridges, after draining shallow ridges docks with the drain ditch 5 along wall or jube, then by entering sewage discharge ditch 7 through body of wall the drainage duct of crossing urine discharge ditch 13.
In the present embodiment, defecate platform 8 is that area is 0.5～1.0m
2the cemented platform of any surface finish, its height maintains an equal level with the drinking-water region of searching for food; The water conservancy diversion direction of draining shallow ridges, drain ditch and the fixing drainpipe 6 connecting successively tilts toward sewage discharge ditch 7; The shallow ridges of urinating connecting successively, the water conservancy diversion direction of urinate ditch 11 and the conduit of urinating tilt toward urine discharge ditch 13.
During concrete enforcement, the equal semicircular in shape in bottom of described urinate shallow ridges and draining shallow ridges, their ditch depth all≤10mm, ditch suitable for reading wide all≤50mm.
During concrete enforcement, described seesaw type transfer bridge groove 12 refers to: the transfer bridge groove that a diameter is greater than the conduit of urinating is installed below the conduit of urinating, and transfer bridge groove opening up, cross section semicircular in shape, it extends to sewage discharge ditch 7 by the below of the conduit of urinating; The middle part of transfer bridge groove by fulcrum support between urine discharge ditch 13 and sewage discharge ditch 7, one end of pull rope is fixedly connected with one end of transfer bridge groove, in one end of transfer bridge groove, during higher or lower than the other end, the pull rope other end of crossing exterior wall is fixed in pig house.
During concrete enforcement, the material of described seesaw type transfer bridge groove 12 is PE or PVC.
During concrete enforcement, the material of described seesaw type transfer bridge groove 12 is natural mao bamboon.
During actual use, to entering the pig of colony house by the method for artificial domestication, guiding it to concentrate on the defecate platform 8 in pig house voids excreta, after pig manure 9 is piled up a part, the extrapolated ight soil that is put in is piled up in pond 10, the urine of discharging with excretion pig manure 9 flows into and urinates in ditch 11 with gradient, and collect in inflow urine discharge ditch 13, now seesaw type aqueduct bridge 12 one end are in mentioning state; Pig in colony house is taken food by self-feeder 2, and drinks water by drinking-water nipple 4, and the water of water clock flows into drain ditch 5 and confluxes in sewage discharge ditch 7 through watering place 3; Rinse during colony house, first by seesaw type aqueduct bridge 12 other ends in mentioning state, then a small amount of ight soil residue, remaining feed are rinsed in sewage discharge ditch 7, because ight soil is separated in advance, therefore can greatly reduce the consumption of pig house washing water.
Claims (5)
1. can collect respectively the pig house of pig manure, pig urine and flushing water for one kind, comprise pig house, self-feeder, drinking bowl, it is characterized in that: in an outside of pig house, be provided with urine discharge ditch and sewage discharge ditch, wherein, sewage discharge ditch is positioned at the outside of urine discharge ditch; At an a corner for pig house, have defecate platform, corresponding to the wall of defecate platform one side, be provided with ight soil outward and pile up pond; At defecate platform periphery, be provided with the shallow ridges of urinating, after the shallow ridges of urinating docks with along the ditch of urinating of wall or jube trend, urine directly enters urine discharge ditch by the conduit of urinating through body of wall, or flushing water enters sewage discharge ditch by the conduit of urinating through body of wall by seesaw type transfer bridge groove; At drinking bowl periphery, be provided with draining shallow ridges, after draining shallow ridges dock with along the drain ditch of wall or jube trend, then enter sewage discharge ditch by the drainage duct that passes body of wall and cross urine discharge ditch; Described seesaw type transfer bridge groove refers to: the transfer bridge groove that a diameter is greater than the conduit of urinating is installed below the conduit of urinating, and transfer bridge groove opening up, cross section semicircular in shape, it extends to sewage discharge ditch by the below of the conduit of urinating; The middle part of transfer bridge groove is by fulcrum support between urine discharge ditch and sewage discharge ditch, and one end of pull rope is fixedly connected with one end of transfer bridge groove, in one end of transfer bridge groove, during higher or lower than the other end, the pull rope other end of crossing exterior wall is fixed in pig house.
2. the pig house that can collect respectively pig manure, pig urine and flushing water according to claim 1, is characterized in that: defecate platform is that area is 0.5～1.0m
2the cemented platform of any surface finish, its height maintains an equal level with the drinking-water region of searching for food; The water conservancy diversion direction of draining shallow ridges, drain ditch and the fixing drainpipe connecting successively tilts toward sewage discharge ditch; The shallow ridges of urinating connecting successively, the water conservancy diversion direction of urinate ditch and the conduit of urinating tilt toward urine discharge ditch.
3. the pig house that can collect respectively pig manure, pig urine and flushing water according to claim 2, is characterized in that: the equal semicircular in shape in bottom of described urinate shallow ridges and draining shallow ridges, their ditch depth all≤10mm, ditch suitable for reading wide all≤50mm.
4. according to the pig house that can collect respectively pig manure, pig urine and flushing water described in claim 1 or 2 or 3, it is characterized in that: the material of described seesaw type transfer bridge groove is PE or PVC.
5. according to the pig house that can collect respectively pig manure, pig urine and flushing water described in claim 1 or 2 or 3, it is characterized in that: the material of described seesaw type transfer bridge groove is natural mao bamboon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452863.3A CN102919136B (en) | 2012-11-13 | 2012-11-13 | Pig house capable of respectively collecting pig manure and pig urine and wash water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452863.3A CN102919136B (en) | 2012-11-13 | 2012-11-13 | Pig house capable of respectively collecting pig manure and pig urine and wash water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102919136A CN102919136A (en) | 2013-02-13 |
| CN102919136B true CN102919136B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210452863.3A Expired - Fee Related CN102919136B (en) | 2012-11-13 | 2012-11-13 | Pig house capable of respectively collecting pig manure and pig urine and wash water |
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| Country | Link |
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| CN (1) | CN102919136B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109258495A (en) * | 2018-10-19 | 2019-01-25 | 剑河县森态林缘山羊养殖有限公司 | A kind of sheep hurdle strives the bolt sheep frame of food with anti-collision |
| CN109452182B (en) * | 2018-12-29 | 2024-03-19 | 祥云大有林牧有限公司 | Intelligent excrement treatment device system for intensive pig farm |
| CN112335551B (en) * | 2020-10-31 | 2023-07-07 | 清苑县华泰隆生态养殖基地 | Black hair pigsty convenient to clean and breed and method |
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|---|---|---|---|---|
| CN2786962Y (en) * | 2005-03-31 | 2006-06-14 | 赖淑銮 | Environment-friendly animal house |
| CN101461330A (en) * | 2009-01-08 | 2009-06-24 | 廖贯廷 | Method and device for eliminating bad odor in pig farm |
| CN201839680U (en) * | 2010-07-15 | 2011-05-25 | 江苏省农业科学院 | Excrement gutter inside pig house |
| CN202222248U (en) * | 2011-09-20 | 2012-05-23 | 江苏省农业科学院 | Novel double-column fattening house |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003023896A (en) * | 2001-07-16 | 2003-01-28 | Taiyo Kogyo Co Ltd | Floor structure |
| KR20100086125A (en) * | 2009-01-22 | 2010-07-30 | 정한솔 | An apartment pigpen to cut global pollution |
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2012
- 2012-11-13 CN CN201210452863.3A patent/CN102919136B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786962Y (en) * | 2005-03-31 | 2006-06-14 | 赖淑銮 | Environment-friendly animal house |
| CN101461330A (en) * | 2009-01-08 | 2009-06-24 | 廖贯廷 | Method and device for eliminating bad odor in pig farm |
| CN201839680U (en) * | 2010-07-15 | 2011-05-25 | 江苏省农业科学院 | Excrement gutter inside pig house |
| CN202222248U (en) * | 2011-09-20 | 2012-05-23 | 江苏省农业科学院 | Novel double-column fattening house |
Non-Patent Citations (2)
| Title |
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| 廖新.猪厂清粪的技术与设施（上）.《养殖技术顾问》.2006,(第1期),11. * |
| 王宝艾 等.关于猪粪尿处理***的现状(上).《洛阳农专学报》.1992,第12卷(第4期),58-60. * |
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| CN102919136A (en) | 2013-02-13 |
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Granted publication date: 20140423 |