A device for measuring the body length of the experimental animal mouse physiological state

Abstract

The invention provides a body length measurement device for experimental animal rat physiological state, comprising a preparation chamber, a body length measurement channel, a platform and an image recording device; the platform has an inclined surface, and the body length measurement channel is obliquely arranged on the side of the platform On an inclined surface; the bottom end of the body length measurement channel is an inlet, and the top is an outlet; the outlet of the preparation warehouse is connected to the inlet of the body length measurement channel; scales are arranged on the bottom surface of the body length measurement channel; the body length The channel side walls on both sides of the measurement channel can move to both sides along the direction perpendicular to the body length measurement channel; the image recording device is used to take and record the images of experimental animals and rats in the body length measurement channel. The device of the invention can realize accurate and non-invasive measurement of the body length of experimental animals.

Description

technical field [0001] The invention relates to the field of measuring device technology (biotechnology), in particular to a device for measuring the body length of experimental animals in the physiological state of rats. Background technique [0002] With the rapid development of modern medicine, experimental animals are more widely used in various fields, especially rats and mice among experimental animals, due to their advantages such as low price, small size, easy breeding, strong reproductive ability, and similar gene sequence to humans And is commonly used. [0003] Body length is one of the most basic physiological indicators of experimental animals. In the construction and evaluation of many commonly used animal models, body length is an indispensable indicator. For example, the Lee's index of experimental mice is a common indicator for judging the degree of obesity in rodents. , is calculated from two indicators of body weight and body length. [0004] At present,...

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Problems solved by technology

[0004] At present, there are mainly two ways to measure the body length of rodents. One is to measure the body length with a soft ruler in the awake state of experimental animals. However, due to the activity of experimental animals and the strong flexibility of the body, it is difficult to measure the actual body length of animals. , the data obtained have large errors; the second is to measure the body length of the animal after anesthesia. Although the body length measurement of the animal is accurate under anesthesia, the effect of anesthesia on the animal does not apply to all experimental projects, single or frequent animal Anesthesia may affect the nervous system, exercise state, water intake, food intake, etc., leading to deviations in some key measurement indicators, which in turn affect the experimental conclusions

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