CN103006226B - Device and method for determining breathing heat of livestock open type mask - Google Patents
Device and method for determining breathing heat of livestock open type mask Download PDFInfo
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- CN103006226B CN103006226B CN201210524551.9A CN201210524551A CN103006226B CN 103006226 B CN103006226 B CN 103006226B CN 201210524551 A CN201210524551 A CN 201210524551A CN 103006226 B CN103006226 B CN 103006226B
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Abstract
The invention relates to a device and method for determining breathing heat produced by a livestock. The device for determining the breathing heat of a livestock open type mask is characterized by comprising components of a breathing mask, an exchanger, a pressure difference determining instrument, a data collecting instrument and the like, wherein the breathing mask is provided with an air inspiration pipeline and an air expiration pipeline, and the air inspiration pipeline and the air expiration pipeline are the same pipeline. The invention also provides a method for determining the breathing heat produced by the livestock. According to the device and the method, provided by the invention, the humiture and the pressure difference of the pipeline can be monitored in real time due to the adoption of the open type breathing mask, the breathing oxygen consumption of the livestock can be directly analyzed by adopting a precise oxygen analyzer, and data can be recorded and analyzed in real time as the data collecting instrument is directly connected with a computer. The oxygen consumption of the livestock per heartbeat can be calculated by combining the determination of the heart rate of the livestock according to a principle that the oxygen consumption per heartbeat of the livestock in normal grazing or barn feeding is stable and the determination of the oxygen consumption of the livestock in short time and the heart rate, and the heat production quantity of the livestock can be then calculated according to heart rate monitoring data of the livestock in 24 hours.
Description
Technical field
The present invention relates to a kind of domestic animal and breathe heat production determinator and calorimetric thereof.
Background technology
Current mensuration domestic animal breathes heat production, generally adopt closed-circulation type mask respiratory calorimetry apparatus, this device faces upward honest and clean (Feng Yanglian by China Agricultural University Feng, the research of Mollison G.S.1985. new closed-circulation type mask breath heat measurement method. Beijing Agricultural University's journal, 1:7 ~ 78.) development, mask has air-breathing and two pipelines of exhaling, and adopts valve to control turnover gas.Pipeline is connected on airbag, and the steam absorbent produced in expiration absorbs.By calculate measure start and at the end of O in airbag
2, CO
2, CH
4the difference of gas componant, calculates O
2consumption and CO
2, CH
4generation, calculates quantity of heat production.Although the method is with low cost compared with respiratory chamber assay method, when shortcoming is and is difficult to avoid domestic animal to breathe, suck the impact of outside air or breath spilling face shield.And adopt inflation air pump to be difficult to continue to imitate the natural air pressure in airbag, be difficult to the normal general breathing ensureing domestic animal.In addition, this device needs to gather after gaseous sample carries out lab analysis and could calculate quantity of heat production.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art, a kind of livestock open type mask respiratory calorimetry apparatus is provided.The present invention adopts open type respiratory mask, Real-Time Monitoring pipeline humiture and pressure reduction, and can the respiration oxygen consumption of direct analysis domestic animal with accurate gas analyzer for O2, and data are directly connected real time record analysis with computer by data acquisition instrument.In conjunction with domestic animal heart rate measurement, according to normal grazing or the stable principle of drylot feeding domestic animal every heart beating oxygen consumption, consume according to short time (15 ~ 20min) domestic animal oxygen and the mensuration of heart rate, the every heart beating oxygen consumption of calculating domestic animal.Then according to the rhythm of the heart data computist livestock products heat (burn 1 liter of oxygen, release heat 20.47KJ) of domestic animal 24h.
For achieving the above object, the technical scheme that the present invention takes is: a kind of livestock open type mask respiratory calorimetry apparatus, it is characterized in that including breathing mask, described breathing mask is provided with air-breathing and expiration pipeline, and described air-breathing and expiration pipeline are a pipeline, also comprise exchanger, described exchanger comprises high pressure footpath pipe, low pressure footpath pipe, high pressure footpath pipe is arranged on one end of low pressure footpath pipe, and is connected with low pressure footpath pipe; High pressure footpath pipe is provided with pressure reduction analyzer air inlet link, low pressure footpath pipe is provided with pressure reduction analyzer gas outlet link; The other end of low pressure footpath pipe is connected by air pump connection tube and air pump; Described breathing mask is connected with the high pressure footpath pipe of exchanger by flexible pipe, and described flexible pipe is provided with filtering and heating device; Also comprise pressure reduction analyzer, the pressure reduction analyzer air inlet link of described exchanger is connected with the gas output tube of pressure reduction analyzer, the pressure reduction analyzer gas outlet link of described exchanger is connected with the gas inlet pipe of pressure reduction analyzer, and pressure reduction analyzer is connected with the first collection terminal of data collecting instrument.The pipeline that described flexible pipe is formed is described air-breathing and expiration pipeline.Described data collecting instrument is connected with computer, real-time monitoring image data, in conjunction with the mensuration of domestic animal heart rate, can the mensuration domestic animal respiration oxygen consumption of more convenient and quicker, and adopt air pump to be bled by breathing mask, the whole intake system of gas domestic animal can breathed out, more meets the general breathing state estimating of domestic animal.
The air pump connection tube of described exchanger is also provided with Temperature Humidity Sensor, and described Temperature Humidity Sensor is connected with the second collection terminal of data collecting instrument.
Described low pressure footpath pipe is also provided with canned pump air inlet link, described canned pump air inlet link is connected with canned pump, exchanger is connected with gas analyzer for O2 by canned pump, and described gas analyzer for O2 is connected with the 3rd collection terminal of data collecting instrument.
The caliber of the low pressure footpath pipe of described exchanger is 42 ~ 46mm, and the caliber of the high pressure footpath pipe of described exchanger is 18 ~ 25mm.
Distance between the gas inlet pipe of described pressure reduction analyzer and the gas output tube of pressure reduction analyzer is 25 ~ 40cm.
The flow of described canned pump is 1 ~ 4mL/min, and power is 50 ~ 60HZ.
Described breathing mask comprises rubber seal outer housing and is arranged on the plastic support duricrust in rubber seal outer housing, the intracavity inter-connection of described flexible pipe and plastic support duricrust.
The present invention also provides a kind of method of livestock open type mask breath heat measurement, and to be step be its main feature:
(1) make domestic animal adapt to breathing mask 10 ~ 15 days before test, adapt to 8 ~ 15 minutes every day;
(2) regulate gas analyzer for O2 zero, the canned pump connecting gas analyzer for O2 is in closed condition;
(3) allow domestic animal bring breathing mask, open air pump, the power of air pump is 800 ~ 1000 watts, and checks breathing mask sealing situation, and it is stable that bleeding regulating pump power makes pressure reduction analyzer data show;
(4) opened by canned pump, meanwhile, carry out data acquisition gas analyzer for O2, pressure reduction analyzer and Temperature Humidity Sensor data 15 ~ 20 minutes by data collecting instrument, period measures domestic animal heart rate, record test domestic animal title and testing time;
(5) close canned pump, remove breathing mask, preserve data;
Also comprise step:
(6) there is poorly sealed situation by order to avoid system, by 99.999% high pure nitrogen of known weight by breathing mask injected system, and again gather gas analyzer for O2, pressure reduction analyzer and Temperature Humidity Sensor data 10 ~ 15 minutes respectively, METHOD FOR CONTINUOUS DETERMINATION 3 times, according to the nitrogen loss in weight, the computing system response rate, these data are for correcting quantity of heat production evaluation.
The invention has the beneficial effects as follows:
The present invention is connected with computer by data collecting instrument, monitors image data in real time, can the mensuration domestic animal respiration oxygen consumption of more convenient and quicker.Air pump is adopted to be bled by breathing mask, the whole intake system of gas domestic animal can breathed out, compared with closed-circulation type respiratory mask test set, the method short time measures domestic animal respiration oxygen consumption, every heart beating oxygen consumption is calculated in conjunction with heart rate measurement, then according to 24h rhythm of the heart data computist livestock products heat, less to domestic animal interference, measure the general breathing state more meeting domestic animal.
Accompanying drawing illustrates:
Fig. 1 closed-circulation type mask respiratory calorimetry apparatus structural representation;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of exchanger of the present invention;
Fig. 4 is the structural representation of breathing mask of the present invention.
In figure: 1. breathing mask, 2. flexible pipe, 3. exchanger, 4. air pump, 5. filtering and heating device, 6. data collecting instrument, 7. Temperature Humidity Sensor, 8. pressure reduction analyzer, 9. gas analyzer for O2,10. canned pump, 11 rubber seal outer housings, 12 plastic support duricrusts, 31 high pressure footpath pipes, 32 low pressure footpath pipes, 33 air pump connection tubes, 34 pressure reduction analyzer air inlet links, 35 pressure reduction analyzer gas outlet links, 36 canned pump air inlet links
Detailed description of the invention
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of livestock open type mask respiratory calorimetry apparatus, include breathing mask 1, described breathing mask 1 is provided with air-breathing and expiration pipeline, and described air-breathing and expiration pipeline are a pipeline, also comprise exchanger 3, described exchanger 3 comprises high pressure footpath pipe 31, low pressure footpath pipe 32, high pressure footpath pipe 31 is arranged on one end of low pressure footpath pipe 32, and is connected with low pressure footpath pipe 32; High pressure footpath pipe 31 is provided with pressure reduction analyzer air inlet link 34, low pressure footpath pipe 32 is provided with pressure reduction analyzer gas outlet link 35; The other end of low pressure footpath pipe 32 is connected by air pump connection tube 33 and air pump 4; Described breathing mask 1 is connected with the high pressure footpath pipe 31 of exchanger 3 by flexible pipe 2, and described flexible pipe 2 is provided with filtering and heating device 5; Also comprise pressure reduction analyzer 8, the pressure reduction analyzer air inlet link 34 of described exchanger is connected with the gas output tube of pressure reduction analyzer 8, the pressure reduction analyzer gas outlet link 35 of described exchanger is connected with the gas inlet pipe of pressure reduction analyzer 8, and pressure reduction analyzer 8 is connected with the first collection terminal of data collecting instrument 6.The air pump connection tube 33 of described exchanger 3 is also provided with Temperature Humidity Sensor 7, and described Temperature Humidity Sensor 7 is connected with the second collection terminal of data collecting instrument 6.Described low pressure footpath pipe 32 is also provided with canned pump air inlet link 36, described canned pump air inlet link 36 is connected with canned pump 10, exchanger 3 is connected with gas analyzer for O2 9 by canned pump 10, and described gas analyzer for O2 9 is connected with the 3rd collection terminal of data collecting instrument 6.The caliber of the low pressure footpath pipe of described exchanger is 42 ~ 46mm, and the caliber of the high pressure footpath pipe of described exchanger is 18 ~ 25mm.Distance between the gas inlet pipe of described pressure reduction analyzer and the gas output tube of pressure reduction analyzer is 25 ~ 40cm.The flow of described canned pump is 1 ~ 4mL/min, and power is 50 ~ 60HZ.The plastic support duricrust 12 that described breathing mask 1 comprises rubber seal outer housing 11 and is arranged in rubber seal outer housing 11, described flexible pipe 2 and the intracavity inter-connection of plastic support duricrust 12.
Embodiment 2: identical with embodiment 1, the caliber of the low pressure footpath pipe of described exchanger is 42mm, and the caliber of the high pressure footpath pipe of described exchanger is 18mm.Distance between the gas inlet pipe of described pressure reduction analyzer and the gas output tube of pressure reduction analyzer is 25cm.The flow of described canned pump is 1mL/min, and power is 50HZ.
Embodiment 3: identical with embodiment 1, the caliber unlike the low pressure footpath pipe of described exchanger is 46mm, and the caliber of the high pressure footpath pipe of described exchanger is 25mm.Distance between the gas inlet pipe of described pressure reduction analyzer and the gas output tube of pressure reduction analyzer is 40cm.The flow of described canned pump is 4mL/min, and power is 60HZ.
Embodiment 4, identical with embodiment 1, the caliber unlike the low pressure footpath pipe of described exchanger is 43mm, and the caliber of the high pressure footpath pipe of described exchanger is 21mm.Distance between the gas inlet pipe of described pressure reduction analyzer and the gas output tube of pressure reduction analyzer is 32cm.The flow of described canned pump is 2mL/min, and power is 55HZ.
Embodiment 5, identical with embodiment 1, unlike not comprising canned pump 10, gas analyzer for O2 9 and temperature sensor 7 parts.
Embodiment 6, identical with embodiment 1, unlike not comprising pressure reduction analyzer 8 and temperature sensor 7 parts.
Embodiment 7, identical with embodiment 1, unlike not comprising pressure reduction analyzer 8 and canned pump 10, gas analyzer for O2 9 parts.
Embodiment 8: the present invention also provides a kind of method of livestock open type mask breath heat measurement, to be step be its main feature:
(1) make domestic animal adapt to breathing mask 10 ~ 15 days before test, adapt to 8 ~ 15 minutes every day;
(2) regulate gas analyzer for O2 zero, the canned pump connecting gas analyzer for O2 is in closed condition;
(3) allow domestic animal bring breathing mask, open air pump, the power of air pump is 800 ~ 1000 watts, and checks breathing mask sealing situation, and it is stable that bleeding regulating pump power makes pressure reduction analyzer data show;
(4) opened by canned pump, meanwhile, carry out data acquisition gas analyzer for O2, pressure reduction analyzer and Temperature Humidity Sensor data 15 ~ 20 minutes by data collecting instrument, period measures domestic animal heart rate, record test domestic animal title and testing time;
(5) close canned pump, remove breathing mask, preserve data;
Also comprise step:
(6) there is poorly sealed situation by order to avoid system, by 99.999% high pure nitrogen of known weight by breathing mask injected system, and again gather gas analyzer for O2, pressure reduction analyzer and Temperature Humidity Sensor data 10 ~ 15 minutes respectively, METHOD FOR CONTINUOUS DETERMINATION 3 times, according to the nitrogen loss in weight, the computing system response rate, these data are for correcting quantity of heat production evaluation.
Comparative example:
Adopting this invention to record growth Grazing Yak, 4 years old, body weight 250 kilograms, is 4.6 ~ 5.8mL/ (min*kgBW), quantity of heat production 715KJ/ (kg BW at the respiration oxygen consumption in summer (August)
0.75* day), winter (December) is 3 ~ 3.8mL/ (min*kgBW), quantity of heat production 415KJ/ (kg BW
0.75* day).Adopting this invention to convert and obtaining Growing Yak quantity of heat production of going on a hunger strike is 274KJ/ (kg BW
0.75* day).Adopting closed-circulation type mask respiratory calorimetry apparatus to measure 3 years old yak quantity of heat production of going on a hunger strike in spring is 312KJ/ (kgBW
0.75* day) (Han Xingtai, Hu Linghao etc. the research of Growing Yak energy metabolism. Qinghai Animal Husbandry, 1993,1:13 ~ 16.).Due to closed-circulation type mask respiratory calorimetry apparatus cannot the real time measure domestic animal at actual quantity of heat production of herding in the process of searching for food, therefore only determine quantity of heat production of going on a hunger strike, and the quantity of heat production difference of going on a hunger strike that two kinds of methods record is not remarkable.
The whole intake system of gas that the present invention adopts air pump domestic animal can be breathed out, avoids overflowing.Moisture absorption filtering and heating device can filter impurity in the gas that domestic animal breathes out and excess moisture, and if pipeline is longer can also be incubated gas, avoid ambient temperature on the impact of breath.The pressure differential that pressure reduction analyzer can produce between exchanger thickness pipe in Real-Time Monitoring pumping process, and be converted into standard pressure by Real-Time Monitoring humiture in pipeline.Other in extra heavy pipe are pumped into accurate gas analyzer for O2, the real time measure gassing oxygen content by sealing peristaltic pump.Humiture, pressure reduction, oxygen data are directly connected with computer by data collecting instrument, monitor image data in real time.After mensuration terminates, system injects high pure nitrogen by breathing mask, and measures the change of injecting front and back nitrogen mass, the computing system response rate, correction data.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a livestock open type mask respiratory calorimetry apparatus, include breathing mask, described breathing mask is provided with air-breathing and expiration pipeline, it is characterized in that described air-breathing and expiration pipeline are a pipeline, also comprise exchanger, described exchanger comprises high pressure footpath pipe, low pressure footpath pipe, and high pressure footpath pipe is arranged on one end of low pressure footpath pipe, and is connected with low pressure footpath pipe; High pressure footpath pipe is provided with pressure reduction analyzer air inlet link, low pressure footpath pipe is provided with pressure reduction analyzer gas outlet link; The other end of low pressure footpath pipe is connected by air pump connection tube and air pump; Described breathing mask is connected with the high pressure footpath pipe of exchanger by flexible pipe, and described flexible pipe is provided with filtering and heating device; Also comprise pressure reduction analyzer, the pressure reduction analyzer air inlet link of described exchanger is connected with the gas output tube of pressure reduction analyzer, the pressure reduction analyzer gas outlet link of described exchanger is connected with the gas inlet pipe of pressure reduction analyzer, and pressure reduction analyzer is connected with the first collection terminal of data collecting instrument; The air pump connection tube of described exchanger is also provided with Temperature Humidity Sensor, and described Temperature Humidity Sensor is connected with the second collection terminal of data collecting instrument; Described low pressure footpath pipe is also provided with canned pump air inlet link, described canned pump air inlet link is connected with canned pump, exchanger is connected with gas analyzer for O2 by canned pump, and described gas analyzer for O2 is connected with the 3rd collection terminal of data collecting instrument; The caliber of the low pressure footpath pipe of described exchanger is 42 ~ 46 mm, and the caliber of the high pressure footpath pipe of described exchanger is 18 ~ 25 mm; Distance between the gas inlet pipe of described pressure reduction analyzer and the gas output tube of pressure reduction analyzer is 25 ~ 40 cm; The flow of described canned pump is 1 ~ 4 mL/min, and power is 50 ~ 60 HZ; Described breathing mask comprises rubber seal outer housing and is arranged on the plastic support duricrust in rubber seal outer housing, the intracavity inter-connection of described flexible pipe and plastic support duricrust;
Also comprise heart rate measurement device and heart rate monitoring unit, the rhythm of the heart data computist livestock products heat of the heart rate data that described livestock open type mask respiratory calorimetry apparatus measures in conjunction with heart rate measurement device according to the data of the gas analyzer for O2 of data collecting instrument collection, pressure reduction analyzer and Temperature Humidity Sensor and heart rate monitoring unit monitoring.
2. use the livestock open type mask respiratory calorimetry apparatus described in claim 1 to carry out a method for breath heat measurement, it is characterized in that step is:
(1) make domestic animal adapt to breathing mask 10 ~ 15 days before test, adapt to 8 ~ 15 minutes every day;
(2) regulate gas analyzer for O2 zero, the canned pump connecting gas analyzer for O2 is in closed condition;
(3) allow domestic animal bring breathing mask, open air pump, the power of air pump is 800 ~ 1000 watts, and checks breathing mask sealing situation, and it is stable that bleeding regulating pump power makes pressure reduction analyzer data show;
(4) opened by canned pump, meanwhile, gathered the data 15 ~ 20 minutes of gas analyzer for O2, pressure reduction analyzer and Temperature Humidity Sensor by data collecting instrument, period measures domestic animal heart rate, record test domestic animal title and testing time;
(5) close canned pump, remove breathing mask, preserve data;
(6) in order to avoid system exists poorly sealed situation, by 99.999% high pure nitrogen of known weight by breathing mask injected system, and again gather gas analyzer for O2, pressure reduction analyzer and Temperature Humidity Sensor data 10 ~ 15 minutes respectively, METHOD FOR CONTINUOUS DETERMINATION 3 times, according to the nitrogen loss in weight, the computing system response rate, described system recoveries rate is for correcting quantity of heat production evaluation;
(7) measure the heart rate of domestic animal and rhythm of the heart is carried out to domestic animal, according to the data of the gas analyzer for O2 of data collecting instrument collection, pressure reduction analyzer and Temperature Humidity Sensor in conjunction with heart rate data and rhythm of the heart data computist livestock products heat.
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| CN201210524551.9A CN103006226B (en) | 2012-12-09 | 2012-12-09 | Device and method for determining breathing heat of livestock open type mask |
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| CN103006226B true CN103006226B (en) | 2015-03-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103340631A (en) * | 2013-07-02 | 2013-10-09 | 上海理工大学 | Maximum positive-negative pressure detecting device and detecting method |
| CN110320326A (en) * | 2019-05-31 | 2019-10-11 | 吉林省农业科学院 | The measuring method of gas reclaiming rate in respiratory metabolism cabin |
| CN110623670B (en) * | 2019-08-16 | 2020-07-10 | 浙江大学 | Split type respiration oxygen consumption real-time monitoring device |
| CN111407280B (en) * | 2020-03-10 | 2022-04-15 | 山东大学 | End-tidal CO of noninvasive ventilator2Monitoring device and method |
| CN111991670A (en) * | 2020-09-02 | 2020-11-27 | 杭州富阳万博空分设备有限公司 | Constant-temperature household oxygen generator and use method thereof |
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| US6582376B2 (en) * | 2001-09-13 | 2003-06-24 | Pranalytica, Inc. | Alveolar breath collection device and method |
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