Device and method for replacing nutrient solution for indoor cultivation of daphnia magna

A technology for culture solution and large fleas, which is applied to the field of devices for indoor cultivation of large fleas to replace the culture medium, can solve problems such as time-consuming, and achieve the effects of avoiding physical injury, improving separation efficiency and separation time.

Inactive Publication Date: 2014-02-12
HUAZHONG AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The traditional way to replace the culture medium is to use a pipette to carefully transfer the large daphnia individuals one by o

Method used

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  • Device and method for replacing nutrient solution for indoor cultivation of daphnia magna

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0023] 1. The device for replacing the culture medium

[0024] 1. Overall

[0025] As shown in Figure 1, the device comprises a water tank 10, a baffle 20, a new culture solution 30, an old culture solution 40 and a light bulb 50;

[0026] The water tank 10 is divided into two parts by the baffle plate 20 placed in the middle of the water tank 10 into a left water tank 11 and a right water tank 12. A small hole 21 and a rubber plug 22 thereof are arranged in the middle of the bottom of the baffle plate 20, and the left water tank 11 is filled with fresh water tanks. solution 30, the right tank 12 is poured into the old culture solution 40 and Daphnia magna 00, and the left side of the tank 10 is provided with a bulb 50.

[0027] 2. Functional components

[0028] 1) Sink 10

[0029] Water tank 10 is a kind of rectangular container.

[0030] 2) Baffle 20

[0031...

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Abstract

The invention discloses a device and method for replacing a nutrient solution for indoor cultivation of daphnia magna and belongs to the technical field of nutrient solution replacement of water creatures. The device comprises a water trough (10), a baffle (20), a new nutrient solution (30), an old nutrient solution (40) and a bulb (50). The water trough (10) is divided into a left water trough (11) and a right water trough (12) by the baffle (20) arranged in the middle of the water trough (10). The middle of the bottom of the baffle (20) is provided with a small hole (21) and a rubber plug (22) of the small hole (21). The new nutrient solution (30) is contained in the left water trough (11), the old nutrient solution (40) and the daphnia magna (00) are poured into the right water trough (12), and the bulb (50) is arranged at the left side of the water trough (10). According to the device and method for exchanging the nutrient solution for indoor cultivation of the daphnia magna, possible physical injury to a daphnia magna body is avoided in the process of separation; food debris, excreta of the daphnia magna, slough and the like in the old nutrient solution are basically prevented from entering the new nutrient solution; compared with a normal suction method, the method has the advantages that the separation efficiency is improved and the separation time is shortened.

Description

technical field [0001] The invention relates to the technical field of replacing culture fluid for aquatic organisms, in particular to a device and method for replacing culture fluid for indoor cultivation of Daphnia magna. Background technique [0002] Daphnia magna, also known as water fleas or scratches, is commonly known as red worms or fish worms, and belongs to Cladocera (Cladocera), which refers to animals of the phylum Arthropoda, Crustacea, Branchopods, Dimorpha, and Cladocera. As a model organism for environmental pollution monitoring, Daphnia magna has great scientific research value. [0003] When using Daphnia magna for scientific experiments, it is often necessary to artificially cultivate Daphnia magna indoors. Since static cultivation is often adopted, it is necessary to replace the culture medium frequently to remove the molting and some food residues produced by Daphnia magna. , but also in order to avoid a large change in pH concentration without changing...

Claims

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Application Information

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IPC IPC(8): A01K67/033
Inventor 王永模刘慧李广胜
Owner HUAZHONG AGRI UNIV
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