KR20170036933A - The real time-measuring apparatus and method of methane gas from the rumen of cattle - Google Patents

The real time-measuring apparatus and method of methane gas from the rumen of cattle Download PDF

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KR20170036933A
KR20170036933A KR1020150135537A KR20150135537A KR20170036933A KR 20170036933 A KR20170036933 A KR 20170036933A KR 1020150135537 A KR1020150135537 A KR 1020150135537A KR 20150135537 A KR20150135537 A KR 20150135537A KR 20170036933 A KR20170036933 A KR 20170036933A
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methane gas
gas
rumen
measurement
methane
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KR1020150135537A
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Korean (ko)
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최창원
이동훈
최성호
박미경
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대구대학교 산학협력단
경북대학교 산학협력단
충북대학교 산학협력단
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D1/00—Surgical instruments for veterinary use
    • A61D1/14—Devices for degassing animals' stomachs

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Abstract

The present invention relates to an apparatus and a method for real-time measurement of methane gas generated in the rumen of cattle. The apparatus includes: a flexible tube (10) inserted into the rumen (11: first stomach) of cattle and serving as a path of movement of the methane gas generated in the rumen of the cattle; a relief valve (20); a gas collecting chamber (30); a methane gas sensor (40); data collection and control means (50); and a solenoid valve (60). The method includes: a methane gas measurement preparation step (S1 step) of installing the real-time methane gas measurement apparatus; a methane gas collection step (S2 step) of collecting the methane gas; a methane gas measurement step (S3 step) of measuring the concentration of the methane gas in real time; a measurement data management step (S4 step) of managing the result of the measurement; and a methane gas discharge step (S5 step) of discharging the methane gas in the gas collecting chamber (30) by controlling the solenoid valve (60) after the completion of the measurement of the methane gas concentration. The apparatus and the method allow precise real-time methane gas measurement by allowing the real-time measurement of the methane gas generated in the rumen of the cattle. The precisely measured methane gas generation amount can result in the measurement of the actual amount of greenhouse gas generated by microbes in the rumen during feeding with materials that can be used in various ingredient feeds, food byproducts, and other types of feeds. In addition, the present invention can be used for the development of greenhouse gas-reducing feeds. The real-time methane gas measurement apparatus has a simple configuration, and thus the apparatus can be manufactured at a low cost. Accordingly, the price of the product can be lowered while the apparatus can be used for long without malfunction. Accordingly, its service life can be extended.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for real-time measurement of methane gas generated from cattle rumen,

The present invention relates to a method for measuring methane gas, and more particularly, to a method for measuring methane gas generated from bovine rumen during real-time activities (ingestion, digestion, metabolism, excretion, etc.) The present invention relates to an apparatus and method for real-time measurement of methane gas generated from a rumen of cattle which quantitatively measures the amount of methane gas.

Four conventional methods for measuring methane gas in cattle can be used. A method using a SF6 substance, a method using a breathing chamber, a method using a vacuum sample tube (in vitro) for measurement, and a method for calculating the ratio of volatile fatty acids.

The first method of measuring methane gas using SF6 is to detect the presence or absence of the substance on the cow's neck and use the sensor to measure the result. However, depending on the physiological conditions of wind, air pressure and cattle, There is a drawback that it becomes very unstable.

The use of the second breathing chamber requires expensive equipment costs, maintenance of the equipment is difficult, and there is a disadvantage that several animals can not be used at the same time in the experiment. Also, since the external air is generated and the generated air is compared, there is a problem that it is not an accurate result.

In the third in vitro method, a gas sample is sampled with a vacuum tube. However, there is a concern that air can be introduced because it is sampled using some injection needles. Also, since it is a limited and artificial method, It is a hard way to apply it directly.

Finally, it is a method to calculate the concentration ratio of acetic acid and propionic acid which are volatile fatty acids in the rumen liquid. Because it is impossible to measure the volume of the whole stomach and gastric juice. However, there is a limit to the predicted value calculated by calculation, so it is difficult to adapt to the field through quantification although the trend can be deduced.

Particularly, in the method using the above-described breathing chamber, there are a hooded breathing chamber and an open circuit breathing chamber as the most frequently used facilities for collecting and measuring methane gas discharged through a respiratory apparatus of a ruminant.

These are facilities to place the head of the livestock or the entire body in the chamber and measure the amount of methane gas generated by the methane fermentation of microorganisms on the rumen through the mouth in real time. And research for constructing a feed-benefit strategy for abatement.

Recently, climate change is emerging as a top priority agenda in the world, and Korea is also pushing to join the mandate to reduce greenhouse gas emissions such as methane.

For reference, the carbon dioxide (CO 2), methane (CH 4), nitrous oxide (N 2 O), hydrogen fluorocarbons (HFCs), perfluorocarbons (PFCs), hexafluoride, sulfur (SF 6) is designated as six greenhouse gases Korea is the ninth largest greenhouse gas producer in the world.

Methane is a greenhouse gas that has a greenhouse effect of more than 20 times that of carbon dioxide, which remains in the atmosphere for about 8.4 years until it is removed once it is discharged. It occupies 16% of the world's greenhouse gas emissions, and methane is a typical material destroying the ozone layer.

According to the Rural Development Administration, the amount of methane emitted for one year by Hanwoo / cattle, and 1.6 for cows is equal to the amount of methane emitted by a car for one year.

Domestic standards About 900 billion tons of methane gas is emitted annually, of which about 30% is caused by the digestive system of ruminants such as cattle, sheep and goats.

In livestock, greenhouse gases mainly occur in two parts. There are farts in the process of digesting livestock and excretion of fodder. These two factors contribute to the generation of large greenhouse gases.

Ruminants such as cows do not digest feeds with gastric juices, but microbes in the stomach eat and digest the feed. The cow replicates the feed collected in the stomach and bites about 40 to 60 times, then repeats the swallowing repeatedly several times throughout the day. In this process, the methane gas is discharged through the trim. Therefore, major countries including Korea are carrying out research to reduce methane produced by microorganisms.

Therefore, the RDA is conducting research to measure and reduce the accurate amount of methane emitted through the trimming of ruminant cattle in order to positively cope with changes in the domestic and foreign countries due to global warming.

This is because it can be used to develop feeds to reduce the methane emissions of ruminants or to develop methane reducers by measuring the amount of methane gas emitted by the ruminant livestock quickly and accurately.

However, there is a need for a device that can easily and accurately measure the amount of methane emitted by feed ruminants or ruminant livestock feeds to reduce methane emissions from livestock farms. However, existing hooded or open circuit breathing chambers Has the following problems.

First, existing hooded breathing chambers or open circuit breathing chambers consist of special facilities and precise instruments, making it difficult to construct a system for directly measuring the amount of methane generated in general livestock farms.

The existing hooded breathing chamber or open circuit breathing chamber has a high installation cost and is difficult to collect blood or milk during breathing gas measurement test. In addition, the amount of methane gas is measured in real time, but accuracy is low.

Therefore, it is possible to easily and accurately measure the amount of methane emitted by the ruminant livestock even in a case where the installation cost is low in the general livestock farmhouse, so that the dosage of the special feed or methane abatement agent for reducing methane emission can be adjusted, And it is necessary to develop a methane gas measuring device that can help reduce environmental pollution.

A conventional methane gas measuring apparatus developed in view of the above-mentioned situation is disclosed in Patent Document No. 1104759 entitled " Apparatus for measuring methane gas emission during ruminant breathing "(Patent Document 1).

The "apparatus for measuring methane gas emission during ruminant breathing" of the above-mentioned Japanese Patent No. 1104759 includes a mask 1 covering the mouth portion of a ruminant as shown in FIGS. 1 and 2; A methane gas detection module (2) having a gas sensor (202) coupled to the front of the mask to detect the amount of methane gas emitted during respiration of the ruminant; A volumeter 3 installed in front of the methane gas detection module 2 to measure the amount of air discharged during respiration of the ruminant; And a dehumidification filter 6 provided between the mask 1 and the methane gas detection module 2 so that data on the amount of methane gas in a short distance can be received and monitored by the computer monitor 7 via wireless communication.

However, since the mask 1 is required to be removed while the bovine tallow is consumed, the "apparatus for measuring the methane gas emission during the ruminant breathing" of the above-mentioned Japanese Patent No. 1104759 requires the amount of the methane gas discharged into the bovine mouth There is a problem in that it can not be measured at all.

Patent Document 1: Japanese Patent No. 1104759,

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to solve the various drawbacks and problems caused by the apparatus for measuring methane emissions of ruminants, And a method and apparatus for real-time measurement of methane gas generated from a rumen capable of accurately measuring methane gas in real time by measuring gas.

Another object of the present invention is to provide a method and apparatus for measuring the amount of methane gas generated from a methane gas generated on a bovine cattle by inserting a tube into the rumen of cattle, The present invention provides a method and apparatus for real-time measurement of methane gas generated from cattle rumen that can be used for the development of a feed for reducing greenhouse gases as well as measuring a greenhouse gas production chamber.

It is a further object of the present invention to provide a methane gas real-time measuring device which is simple in construction and has a low cost for manufacturing a device, which can reduce the price of the product and can be used for long- And an apparatus and method for real-time measurement of methane gas are provided.

In order to accomplish the above object, there is provided an apparatus for real-time measurement of methane gas generated from a rumen of a cattle in accordance with the present invention, comprising: a soft tube (11) inserted into a rumen (11) (10); A relief valve (20) connected to the soft tube (10) for opening and closing the flow of methane gas; A gas collection chamber 30 connected to the relief valve 20 and collecting methane gas input through a relief valve 20; A methane gas sensor 40 installed inside the gas collection chamber 30 for measuring the concentration of methane gas; A data acquisition and control means 50 connected to the methane gas sensor 40; And a solenoid valve (60) connected to the gas collection chamber (30) for discharging methane gas in the gas collection chamber (30) after completion of measurement of methane gas concentration in the gas collection chamber (30).

The present invention can accurately measure the methane gas in real time by measuring the methane gas generated on the bovine by inserting the tube into the rumen of the bovine, and can accurately measure the methane gas from the measured methane gas production amount to various diets, food byproducts and other feeds It can be used not only to measure greenhouse gas production by rumen microorganisms, but also to develop feeds for reducing greenhouse gases when the available materials are fed. The construction of the methane gas real time measurement device is simple, There is a special advantage that the life of the device can be stably used for a long period of time without failures while the cost of the product can be reduced.

1 is a perspective view of a conventional mask type methane gas amount measuring instrument,
FIG. 2 is a schematic view showing a conventional mask type methane gas measurement system,
FIG. 3 is a schematic view of a methane gas real-time measuring apparatus generated from a rumen of a cattle of the present invention,
4 is a flow chart showing the execution of the methane gas real-time measurement method generated from the rumen of the cattle of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an apparatus and method for real-time methane gas measurement in a rumen of a cattle of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a block diagram of an apparatus for real-time measurement of methane gas generated from a rumen of a cattle of the present invention, and FIG. 4 is a flow chart of an actual measurement method of methane gas generated from a rumen of the cattle of the present invention. The device comprises a soft tube 10 inserted into the rumen 11 of the bovine rumen and acting as a path for methane gas generated in the bum rumen 11; A relief valve (20) connected to the soft tube (10) for opening and closing the flow of methane gas; A gas collection chamber 30 connected to the relief valve 20 and collecting methane gas input through a relief valve 20; A methane gas sensor 40 installed inside the gas collection chamber 30 for measuring the concentration of methane gas; A data acquisition and control means 50 connected to the methane gas sensor 40; And a solenoid valve 60 connected to the gas collection chamber 30 for discharging the methane gas of the gas collection chamber 30 after completion of measurement of methane gas concentration in the gas collection chamber 30. [

Preferably, the flexible tube 10 is connected to the cannula using a cannula so that the length of the flexible tube 10 can be adjusted without any hindrance to the daily behavior of the cattle. In the relief valve 20, And the pressure of the inside of the rumen 11 of the cattle is lowered after the opening of the cattle rumen 11 is started so that the movement of the methane gas flowing back from the gas collection chamber 30 to the rumen 11 of the bovine .

The gas collection chamber 30 preferably has a structure capable of changing its internal volume.

The method for real-time methane gas measurement in the rumen of a cattle according to the present invention comprises the steps of inserting a soft tube 10 inside a cattle rumen (11, first position) and a methane gas measurement preparation step S1 Step; A methane gas collection step (S2) of collecting methane gas by introducing methane gas generated from the cattle rumen (11, first place) into the gas collection chamber (30) through the soft tube (10) and the relief valve (20) Wow; A methane gas measuring step (S3) of measuring the concentration of methane gas collected in the gas collecting chamber (30) by the methane gas sensor (40) in real time; A measurement data management step (S4) for storing and managing the measurement result of the methane gas measurement step (S3) in the data collection and control means (50); And a methane gas discharge step (S5) of discharging the methane gas in the gas collection chamber 30 by controlling the solenoid valve 60 with the data collection and control means 50 after completion of the methane gas concentration measurement.

Example

A methane gas real-time measuring device generated from the rumen of the present invention was prepared and the methane gas generated from the rumen of the cattle was measured in real time by the method of the present invention.

First, a cannula was inserted into the soft tube 10 inside the cow's rumen 11 (first position) in the methane gas measurement preparation step (S1 step), and a methane gas real time measurement device was installed.

Methane gas generated in the rumen (11, first place) of the cow in the methane gas collection step (S2) is introduced into the gas collection chamber (30) through the soft tube (10) and the relief valve (20) And the concentration of the methane gas collected in the gas collecting chamber 30 in the methane gas measuring step (step S3) is measured in real time by the methane gas sensor 40.

Next, the real-time measurement result of the methane gas is stored and stored in the data collection and control means 50 in the measurement data management step (S4 step), and the data is collected after the completion of the methane gas concentration measurement in the methane gas discharge step (S5 step) And the control means (50) controls the solenoid valve (60) to discharge methane gas in the gas collecting chamber (30).

As a result, it was confirmed that the methane gas generated on the bovine can be accurately measured in real time through the apparatus and method for real-time measurement of methane gas generated from the rumen of the cattle of the present invention.

While the present invention has been described with reference to the preferred embodiments, it is to be understood that the present invention is not limited thereto and various changes and modifications may be made without departing from the scope of the invention.

10: soft tube 11: rumen (first place)
20: relief valve 30: gas collecting chamber
40: Methane gas sensor 50: Data collection and control means
60: Solenoid valve

Claims (5)

A soft tube 10 inserted into the rumen 11 (first position) of the cattle and serving as a movement path of methane gas generated from the rumen of the cattle; A relief valve (20) connected to the soft tube (10) for opening and closing the flow of methane gas; A gas collection chamber 30 connected to the relief valve 20 and collecting methane gas input through a relief valve 20; A methane gas sensor 40 installed inside the gas collection chamber 30 for measuring the concentration of methane gas; A data acquisition and control means 50 connected to the methane gas sensor 40; A solenoid valve 60 connected to the gas collection chamber 30 for discharging the methane gas of the gas collection chamber 30 after completion of measurement of methane gas concentration in the gas collection chamber 30, Gas real time measuring device. The apparatus of claim 1, wherein the flexible tube (10) is connected using a cannula so as to be adjustable in length so as not to interfere with the daily behavior of the cattle. The relief valve as claimed in claim 1, wherein the relief valve (20) is opened when methane gas is generated in the brewery rumen (11) and the pressure inside the brewery rumen (11) rises and when the pressure inside the brewery rumen And closing the flow of the methane gas flowing back from the gas collection chamber (30) to the rumen (11) of the bovine. The apparatus of claim 1, wherein the gas collection chamber (30) has a structure capable of changing its internal volume. A methane gas measurement preparation step (S1 step) of inserting a soft tube (10) into the rumen (11, first position) of the bovine and installing a methane gas real time measurement device; A methane gas collection step (S2) of collecting methane gas by introducing methane gas generated from the cattle rumen (11, first place) into the gas collection chamber (30) through the soft tube (10) and the relief valve (20) Wow; A methane gas measuring step (S3) of measuring the concentration of methane gas collected in the gas collecting chamber (30) by the methane gas sensor (40) in real time; A measurement data management step (S4) for storing and managing the measurement result of the methane gas measurement step (S3) in the data collection and control means (50); And a methane gas discharging step (S5) of discharging methane gas in the gas collecting chamber (30) by controlling the solenoid valve (60) with the data collection and control means (50) after completion of the methane gas concentration measurement Real - time methane gas measurement method in bovine rumen.
KR1020150135537A 2015-09-24 2015-09-24 The real time-measuring apparatus and method of methane gas from the rumen of cattle KR20170036933A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590640A (en) * 2019-12-23 2021-07-07 Zelp Ltd Gas monitoring device
CN114324772A (en) * 2022-01-06 2022-04-12 周荣满 Ruminant digestive system exhaust methane collecting and processing device
WO2022220233A1 (en) * 2021-04-16 2022-10-20 株式会社トクヤマ Gas measuring device for measuring gas in digestive organs of livestock
KR20230122417A (en) 2022-02-14 2023-08-22 주식회사 유라이크코리아 Low Carbon Livestock Management System
KR20240006349A (en) 2022-07-06 2024-01-15 주식회사 빅스솔루션 Method for estimating methane of ruminants

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH114759A (en) 1997-06-13 1999-01-12 Akihiro Irita Cooking device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH114759A (en) 1997-06-13 1999-01-12 Akihiro Irita Cooking device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2590640A (en) * 2019-12-23 2021-07-07 Zelp Ltd Gas monitoring device
WO2022220233A1 (en) * 2021-04-16 2022-10-20 株式会社トクヤマ Gas measuring device for measuring gas in digestive organs of livestock
CN114324772A (en) * 2022-01-06 2022-04-12 周荣满 Ruminant digestive system exhaust methane collecting and processing device
KR20230122417A (en) 2022-02-14 2023-08-22 주식회사 유라이크코리아 Low Carbon Livestock Management System
KR20240006349A (en) 2022-07-06 2024-01-15 주식회사 빅스솔루션 Method for estimating methane of ruminants

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