Closed multi-channel behavior tester

Abstract

The invention discloses a closed multi-channel behavior tester. The closed multi-channel behavior tester comprises a main body chamber, a selection arm connected with the main body chamber, and a terminal chamber connected with the selection arm; a selection arm connecting port is formed in the side wall of the main body chamber; a connecting sleeve is arranged on the top surface of the main bodychamber; the inlet end of the selection arm can be detachably connected with the connecting arm connecting port of the main body chamber, a sealed switch is arranged at the inlet end of the selectionarm, and the outlet end of the selection arm is sealed through a gauze element; the inlet end of the selection arm is also detachably connected with the connecting sleeve of the main body chamber; andthe terminal chamber is provided with a terminal chamber connection port, and the terminal chamber connection port is detachably connected with the outlet end of the selection arm. The closed multi-channel behavior tester provided by the invention can carry out research on behavior characteristics with repeatability for flying insects.

Description

technical field [0001] The invention relates to the field of experimental equipment for vector biological control research, in particular to a device for measuring the sex-taxis behavior of small flying insects (such as mosquitoes, midges, flies, moths, etc.). Background technique [0002] Flying insects are highly selective in habitat selection, host selection and feeding (or biting blood-sucking), and looking for eggs in breeding grounds. Factors affecting their selection mainly include a series of physical factors (such as light, temperature and humidity, etc.) and Chemical factors (certain specific chemical substances and odors produced, etc.). In the field of vector biological control and other fields, the study of habitat or host selectivity of certain harmful flying insects is of great significance for the development of applied products (such as repellents, attractants) and the assessment of the risk of different hosts being attacked by vector diseases. [0003] At ...

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Problems solved by technology

[0003] At present, this type of equipment commonly used is mainly used in the field of insects in a broad sense, such as insect olfactory instruments with different numbers of channels. In order to make the source of odor more concentrated, the connected pipes are usually thinner, which is suitable for reptiles to crawl through, but not applicable. Due to the flight of flying insects (such as insect four-arm olfactory instrument, six-arm olfactory instrument, etc.), using this type of equipment to carry out flying insect behavior tests will lead to a long duration of the experiment, and some flying insects to be tested are in a long-term retention selection state; In addition, there are some common defects in the design of this type of equipment: one is the open design, which requires the connection of the air extraction equipment and the olfactory instrument to form the flow direction of the olfactory stimulation substance (odor source), which is easy to cause the mixing of different sources of odor at the confluence, Moreover, the airflow will seriously interfere with the selectivity of insects; second, it is difficult to achieve repeatable operations, and the stability of scientific test results usually needs to be verified by repeatability. However, using the current olfactory instrument, the insects to be tested undergo a behavioral measurement. Afterwards, it is more complicated to collect the test insects again. Even if specific means can be used to collect and release the insects again, the batch of insects is often damaged obviously (for example, after the mosquitoes are collected again by the electric mosquito aspirator, many parts such as wings and limbs are damaged, and the vitality is reduced. The third is that when the source of the stimulus to be tested is a solid host animal (such as a small mammal, etc.), the conventional olfactory instrument cannot provide information on the overall stimulus source of the host (including Odor, temperature, etc.) for effective collection

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