JPH01108928A - Breeding apparatus for experimental animal such as mouse, rat, etc. - Google Patents

Abstract

PURPOSE: To provide the subject device which is divided to an animal breeding room side and a water feed room side by providing the inside of a cage with a specific partition and prevents the malfunction of a water feeder due to wooden chips and the breakage of the front end of the water feeder when animals move around. CONSTITUTION: The partition plate 4 made of a wire net is hung and mounted on the rear surface of a metallic wire grid cap 3 to be placed in the open port at the upper surface of the cage 1 contg. the wooden chips to segment the inside of the cage to the room B where the animals move around and the drinking chamber A. The partition plate is provided with a hole 5 for the animal to put its head and mouth tip at the time of drinking the water and the side wall of the cage is provided with a hole 2 for insertion of the water feeder. The water feeder is mounted to face upward with respect to the cage and the front end port of a drinking capillary is retreated slightly inward from the front end port of its outside pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a breeding apparatus for experimental animals such as mice and rats.

[Conventional technology]

Conventionally, in laboratory animal breeding equipment for mice, rats, etc., wood chips are placed inside a plastic box-shaped cage with an open top, and a metal wire grid cover is placed over the open top to automatically supply water from the side of the cage. A system in which the tip of the container is inserted into the cage and the animal inside the cage drinks water is generally used.

However, in this type of breeding equipment, when the experimental animal is exercising and moving around in the cage, it is easy to touch the tip of the automatic waterer, and during exercise, the tip of the automatic waterer can be used as a play tool. Move the drinking tube at the tip of the water dispenser to cause water to leak into the cage. If even a small amount of water accumulates in the cage, the experimental animal's body will become cold and lose weight, and if the animal is undergoing treatment and its effects, it may interfere with the experiment, and it may also cause problems with exercise. When the automatic water dispenser is being used, the wood chips are thrown away and piled up around the tip of the automatic water dispenser, causing the tip of the automatic water dispenser to come into contact with the wood chips, which also moves the tip of the water cup tube inside the automatic water dispenser outer tube, causing hot water to leak. Or.

Alternatively, the animal may not be able to drink water from the automatic waterer because the automatic waterer does not operate properly, resulting in an insufficient amount of water for the animal and the risk of death.

Also, when connecting the cage to the automatic water dispenser attached to the water supply pipe, insert the tip of the automatic water dispenser into the water dispenser insertion hole of the cage, and insert the cold part attached to the automatic water dispenser into the insertion hole of the cage. ° Including fixed. However, since the cage is sterilized and sterilized using Autogelap, the shape of the insertion hole of the cage is also the same. The heat from the poisoning caused the water to deform and the stopper attached to the automatic water dispenser to not work properly.
In research institutions where experimental animals are kept in hundreds of cages arranged side by side, it is difficult to connect cages and automatic water feeders, which is troublesome.

[Problem to be solved by the invention]

The present invention places wood chips in the conventional box-shaped cage as described above,
In a device that breeds laboratory animals by inserting the tip of the automatic waterer from the side of the cage, we have removed and solved the cause of water leaking from the tip of the automatic waterer into the cage, and we have installed hundreds of waterers side by side. The aim is to simplify the connection between the breeding cage and the automatic waterer, thereby streamlining the work.

[Means for solving problems]

The present invention provides one partition within the box-shaped cage.

It is divided into an interlocking compartment where experimental objects can move around, and a water drinking compartment.When animals are exercising in the cage, they are prevented from touching the tip of the automatic water dispenser, and when they are trying to drink water, they are placed in a small It is provided inside the outer pipe of the automatic water dispenser so that the user can insert the tip of the mouth through the hole and drink water from the tip of the automatic water dispenser, and also to prevent the water that returns from the tip of the automatic water dispenser from leaking into the cage when drinking water. Create an automatic water dispenser by retracting the tip of the water drinking tube slightly inward from the outer tube tip opening, and then inserting the automatic water dispenser slightly upward into the cage to open the water drinking tube of the automatic water dispenser. Water leaking from the tip of the tube passes through the outer tube of the automatic water dispenser and flows to the lower base side of the automatic water cooler, allowing it to flow out of the cage. In addition, in order to make the connection means between a large number of automatic water dispensers connected to a water supply pipe and a large number of cages simple and effective, in the present invention, a rubber cup is attached to the outer pipe of the automatic water dispenser, If you push the cage toward the automatic water dispenser, the tip of the automatic water dispenser outer tube will naturally be inserted into the cage hole, and even if the shape of the cage hole is slightly deformed due to steam disinfection, the automatic water dispenser A rubber cup attached to the outer tube presses against the circumferential wall of the cage hole, thereby sealing the gap between the inserted water supply device (outer) α and the cage hole.

〔Example〕

FIG. 1 is a perspective view of an embodiment of the present invention, showing a state in which a metal wire lattice lid provided with partition plates is inserted into a box-shaped cage according to the present invention. 1 in the figure is a plastic box-shaped cage with an open top, and a self-contained cage on the rear side wall. III]f@A hole 2 for inserting a water container is provided. 3 is a metal wire lattice lid, as shown in the perspective view No. 3121, the inside of the cage is connected to the water drinking side A of the animal;
A partition plate 4 made of a metal mesh is attached to the lower surface of the metal wire lattice lid, dividing the room into a room side B where animals roam. The lower side of this partition plate is dimensioned to reach the inner bottom surface of the cage. 5 is a hole provided in the metal mesh partition plate at a position opposite to the cage hole 2, and when the animal tries to drink water, the animal's proboscis is inserted into this hole 5 to the tip of the automatic waterer inserted into the cage. It's as big a hole as possible.

6 is a feeding chamber formed integrally with the metal wire lattice lid. As shown in Fig. 2, when the animal moves the tip of the drinking tube 8 provided at the center of the outer tube 7 of the automatic watering device with its mouth, water will be released from the tip of the watering device. An automatic water dispenser is used in which water comes out little by little so that water can be drunk.9 In the present invention, the tip opening of the water drinking tube 8 of this automatic water dispenser is connected to the tip opening of the outer tube 7. Use one that is set back slightly inward.

Also, to attach it to the cage, as shown in Figure 2.

The tip of the automatic water dispenser is inserted into the water dispenser insertion hole of the cage, and the tip of the automatic water dispenser is attached to the cage with the tip slightly inclined upward. This is when an animal drinks water by moving the tip of its drinking tubule.

The water leaking from the tip of the tube on the water drinking side does not fall into the cage, but passes through the outer tube 7 of the automatic water dispenser, flows to the base of the outer tube F, and flows from the outer tube base to the outside of the cage through the rubber tube 9, etc. This is to make it flow out.

10 is a rubber cup attached to the insertion outer tube of the automatic water dispenser as shown in FIG. Reference numeral 11 indicates a water supply pipe that supplies water to an automatic water supply device.In the case of a device that rears many cages side by side, a large number of automatic water supply devices are connected to water supply pipes corresponding to the positions of the many cages arranged side by side. 11, and when trying to connect the cage and automatic water supply device, t,! If you push the cage towards the specified automatic water dispenser, the water tube of the automatic water dispenser will naturally be inserted into the insertion hole provided in the cage, and the circumferential wall of the hole in the cage will fit into the rubber of the water dispenser. The rubber cup makes pressure contact with the cage cup to close the gap around the cage hole, and when the cage is pushed forward, this rubber cup acts as a stopper and the cage becomes an automatic water feeder without the need for a special stopper means. It stops at a predetermined position and the two are connected by pressure contact.

[Function and effect of the invention]

As described above, the present invention is an apparatus for breeding laboratory animals in a nine-box cage filled with wood chips, in which a metal mesh partition plate is attached hanging down to the bottom surface of the metal and grid lid that is in contact with the top opening of the cage. The interior is divided into a room where animals can move around all the time and a room where they can drink water.
On the narrow tip side of the cage where the water dispenser is inserted,
Swirl height (Even if you try to stack them up, there is a partition board for one compartment, so wood chips will not get into the water bowl compartment, so wood chips will not cause the automatic waterer to operate A, and this partition board allows animals to automatically water while they are exercising.) There is no need to tamper with the tip of the bowl.

Therefore, it is possible to prevent water from leaking into the cage from the tip of the automatic water supply device. Also, when an animal drinks water from the tip of the automatic waterer,
The automatic water dispenser is installed facing upwards in relation to the cage, and the tip of the water tube of the automatic water dispenser is set back a little further inward than the outer tube tip of the automatic water dispenser, so that leaked water can be absorbed by the animal. When drinking water! The water passes through the outer pipe and flows to the base outlet of the automatic water supply device, so that it can flow out of the cage without leaking into the cage. Therefore, in the apparatus of the present invention, various harmful effects on the domestic animals, such as water leaking from the drinking bowl and collecting in the cage, can be prevented.

Furthermore, since a rubber cup is attached to the insertion outer tube of the automatic water dispenser, the cage and the automatic water dispenser can be connected.

Since removal can be done by a simple pressure-welding operation, it is extremely effective in reducing the labor required for raising y1 in research facilities where several hundred or more experimental animals are kept side by side.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention showing a state in which a metal wire lattice lid provided with partition plates is inserted into a box-shaped cage according to the present invention, and Fig. 2 shows an automatic water supply device installed in the cage with an upward tilt. Figure 3 is a perspective view of the metal wire lattice lid, and Figure 4 is a perspective view showing the state in which a rubber cup is attached to the automatic water dispenser. 1... Box-shaped cage with open top surface 2... Automatic water feeder insertion hole 3... Metal wire grid lid 5 with partition mesh plate 4 attached...
- Hole 6 into which the animal's head and mouth are inserted when trying to drink water...Feeding chamber part 7 formed integrally with the lattice lid...Outer pipe part 8 of the automatic water dispenser...Inner center of the outer pipe Water drinking tube 9 attached to...
・-Rubber pipe for water outflow

Claims (2)

[Claims] (1) In a device for breeding experimental animals by placing wood chips in a box-shaped cage with an open top and inserting an automatic waterer into the cage from the rear side of the cage, the bottom surface of the metal wire grid that is placed against the top surface of the cage is A metal mesh partition plate is hung down to divide the inside of the cage into the animal breeding room and the water supply room, and this partition plate has a hole through which the animal can insert its head to drink water from the tip of the automatic water dispenser. The automatic water dispenser is installed by retracting the tip of the water drinking tube on the cage insertion side a little further inward than the tip of the outer tube, and slanting the automatic water dispenser upward with respect to the cage. A breeding device for experimental animals such as mice and lattes, in which water leaking from the tip of the water drinking tube passes through the outer tube and flows out to the base side of the automatic water supply device. (2) A metal wire lattice lid with a partition plate on the bottom that divides the inside of the cage into an experimental animal breeding room and a drinking room is placed on the open top of the box-shaped cage, and the cage's automatic water feeder is A laboratory animal breeding device for mice, rats, etc., characterized in that a rubber cup is attached to the outer tube on the cage insertion side, and the cage and automatic water supply device are connected by pressing the cup part against the side wall of the cage.