Respiratory metabolism device of cow

Abstract

The invention relates to a respiratory metabolism device of a cow, belonging to the technical field of experiment equipment. The respiratory metabolism device of the cow mainly comprises a cuboid-shaped respiratory metabolism cabin, air inlet pipes, an air exhaust pipe, an entrance and exit for the tested cow, and a feces discharge pipe, wherein the air inlet pipes and the air exhaust pipe are each connected with an axial flow fan, an air velocity transducer and a gas flowmeter; the entrance and exit for the tested cow to go in and out is formed at the top of the respiratory metabolism cabin, an annular water tank is fixed adjacent to the entrance and exit for the tested cow in a surrounding manner, and the entrance and exit for the tested cow is sealed by a sealing cover; the floor of the respiratory metabolism cabin inclines with certain gradient along the horizontal direction, and the lowest point of the inclined part is connected with a U-shaped feces collection pipe. The respiratory metabolism device can test greenhouse gases generated when the cow has metabolism, is reasonable in integral structural design and simple in structure, the annular water tank at the entrance and exit is novel in structure, the sealing property is good, the U-shaped feces collection pipe fixed at the bottom of the device can be used for guaranteeing the sealing property of the respiratory metabolism cabin while being used for collecting feces and urine of the cow, and thus the accuracy of the test result of the experiment is improved.

Description

technical field [0001] The invention relates to the technical field of livestock experimental devices, in particular to a respiratory metabolism device for cattle. Background technique [0002] LivestockCH 4 Emissions of greenhouse gases such as greenhouse gases have exceeded the total industrial emissions, and in animal husbandry, cattle emissions account for the largest proportion. For this it is necessary for bovine CH 4 High-precision testing such as greenhouse gas emissions can provide basic data for effective emission reduction measures. The test of greenhouse gas emissions needs to be carried out in a closed respiratory metabolism chamber. The traditional respiratory metabolism chamber has a door on the side for cattle to enter and exit. After the cattle enter the metabolism chamber, the necessary sealing treatment is performed on the door gap. The technical requirements for sealing are high, and it is difficult to obtain test results with high reliability in pract...

AI Technical Summary

Problems solved by technology

The traditional respiratory metabolism chamber has a door for cattle to enter and exit on the side. After the cattle enter the metabolism chamber, the necessary sealing treatment is carried out on the door gap. The technical requirements for sealing are high, and it is difficult to obtain test results with high reliability in practice.

The invention patent discloses "a method for measuring greenhouse gas emissions of ruminant livestock (CN104104267127A)", which uses a fence-type metabolic cage placed on a large water tray, and a sealed shell is used to cover the metabolic chamber, and the water in the chassis Seal the metabolic chamber, but the water in the chassis evaporates into the metabolic chamber due to the heat generated by the experimental cattle, which is not conducive to the regulation of the microclimate environment in the metabolic chamber

However, there is no experimental device that satisfies the above-mentioned functions

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