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Device and method for determining breathing heat of livestock open type mask

An open-circuit, livestock technology, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as difficult to imitate natural air pressure, difficult to ensure normal natural breathing of livestock, etc., to achieve the effect of small disturbance of livestock

Inactive Publication Date: 2013-04-03
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cost of this method is lower than that of the breathing chamber measurement method, the disadvantage is that it is difficult to avoid the influence of the outside air inhaled or the exhaled gas overflowing the mask when the livestock breathes.
Moreover, it is difficult to continuously imitate the natural air pressure in the air bag by using an inflatable air pump, and it is difficult to ensure the normal natural breathing of livestock

Method used

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  • Device and method for determining breathing heat of livestock open type mask
  • Device and method for determining breathing heat of livestock open type mask
  • Device and method for determining breathing heat of livestock open type mask

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 As shown, a livestock open-circuit mask respiratory calorimetry device includes a breathing mask 1, and the breathing mask 1 is provided with inhalation and exhalation pipelines, and the inhalation and exhalation pipelines are one The pipeline also includes an exchanger 3, and the exchanger 3 includes a high-pressure diameter pipe 31 and a low-pressure diameter pipe 32. The high-pressure diameter pipe 31 is arranged on one end of the low-pressure diameter pipe 32 and communicates with the low-pressure diameter pipe 32; The diameter pipe 31 is provided with the inlet connection end 34 of the pressure difference measuring instrument, and the low pressure diameter pipe 32 is provided with the air outlet connection end 35 of the pressure difference measuring instrument; The air pump 4 is connected; the breathing mask 1 is connected with the high-pressure diameter pipe 31 of the exchanger 3 through the flexible ...

Embodiment 2

[0028] Embodiment 2: Same as Embodiment 1, the pipe diameter of the low-pressure diameter pipe of the described exchanger is 42 mm, and the pipe diameter of the high-pressure diameter pipe of the described exchanger is 18 mm. The distance between the gas input pipe of the differential pressure measuring instrument and the gas output pipe of the differential pressure measuring instrument is 25 cm. The flow rate of the sealed pump is 1mL / min, and the power is 50HZ.

Embodiment 3

[0029] Embodiment 3: Same as Embodiment 1, except that the diameter of the low-pressure diameter pipe of the described exchanger is 46 mm, and the pipe diameter of the high-pressure diameter pipe of the described exchanger is 25 mm. The distance between the gas input pipe of the differential pressure measuring instrument and the gas output pipe of the differential pressure measuring instrument is 40 cm. The flow rate of the sealed pump is 4mL / min, and the power is 60HZ.

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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 [0001] The invention relates to a livestock respiratory heat production measuring device and its heat measurement. Background technique [0002] At present, a closed-circuit mask respiration calorimetry device is commonly used to measure livestock respiration heat production. : 7~78.) Developed, the mask has two pipelines for inhalation and exhalation, and the valve is used to control the air in and out. The tubing is connected to the air bag, and the moisture generated in the exhalation is absorbed by the absorbent. Determination of O in the air pocket at the beginning and end by calculation 2 , CO 2 、CH 4 The difference of gas composition, calculate O 2 Consumption and CO 2 、CH 4 Production, calculate the heat production. Although the cost of this method is lower than that of the breathing chamber method, the disadvantage is that it is difficult to avoid the influence of inhaling external air or exhaling gas overflowing the mask when livestock breat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/083
Inventor 丁路明龙瑞军王玉鹏郭旭生尚占环李小刚
Owner LANZHOU UNIVERSITY
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