CZ307635B6 - Training equipment, especially for training rattus norvegicus rats to compare human odors - Google Patents

Abstract

The training device, especially for training rattus norvegicus rats for the comparison of human odors, is in the shape of a rectangular trough (1), with its back (15) and lower portion (16) of surgical steel, the sides (8) and the front (14) of of the tempered glass, in the lower part (16) are the individual lower steel plates (2), in each individual lower steel plate (2) the circular opening (3) is smaller than the lid surface of the odor can (12) and (13) when the circular apertures (3) correspond to the size of the trained animal and the criteria for odor purity, i.e. 250 to 350 mm in diameter. The thickness of the tempered glass in the front side (14) and the side wall (8) is 3-5 mm, the thickness of the steel plates (2) and (4) is 2-4 mm. The trough (1) is divided into two regions (A) and (B), which are separated by a vertical steel plate (4) in which the animal passage opening (5) is opened and closed by the trap door (6) controlled by a training trainer. Under each individual lower steel plate (2) there is a space for external insertion of odor preserves (12) and (13), and the whole device is placed on the uprights (9) with wheels (10).

Description

The invention relates to a training device, particularly suitable for training rats Rattus norvegicus for the comparison of human odors.

BACKGROUND OF THE INVENTION

For the training of not only rats for odor comparisons, no compact training device is known which would ensure welfare of trained animals as well as odor purity so as not to mix the presented odors with each other or to directly contact the trained animal with the presented odors. The training device shall also be fully detachable in order to ensure that all its parts are cleaned of odor marks. Currently, there is no trainer to allow rats to study odor comparison while meeting their welfare requirements, an undesirable condition.

SUMMARY OF THE INVENTION

The above-mentioned drawbacks are eliminated by a training device, in particular for the training of Rattus norvegicus rats for comparing human odors, according to the invention, which has the form of a rectangular trough, its back and bottom being made of surgical steel, sides and tempered glass front. , in the lower part there are individual lower steel plates, in each individual lower steel plate the circular hole is smaller than the area of the odor can lid, where the distance of individual circular holes corresponds to the size of the trained animal and criteria for odor cleanness, ie 250 to 350 mm diameter thickness of tempered glass in front and side wall is 3 to 5 mm, thickness of steel plates is 2 to 4 mm, the trough is divided into two areas (A) and (B), which are separated by a vertical steel plate, in which there is an opening for the animal hatch and this opening is opened and closed by the pad The door is controlled by a training trainer, where under each individual lower steel plate there is space for external insertion of odor cans. The whole device is placed on the stands with wheels.

The training device according to the invention is characterized in that it is fully demountable and its individual parts are easily replaceable.

The training device according to the invention allows easy insertion of individual odor cans from outside to avoid mixing of individual odors in the area of the training trough. Another advantage is that any part of this device can be immediately exchanged for the same and thus constantly maintain the odor-clean environment necessary for the unquestionable odor comparison of human odors, which could then be used, for example, in the field of forensics. Furthermore, the training device is safe to use in order to prevent any injury to the animal through careless handling or action of the animal itself. The design of this training device meets strict criteria for odor cleanliness, easy dismantling and welfare of trained animals. The operator of the training device according to the invention is fast, safe and reliable and allows training not only in rats. This whole device is mobile.

Clarification of drawings

The training device of the invention is shown in FIG. 1 showing it in perspective.

- 1 GB 307635 B6

DETAILED DESCRIPTION OF THE INVENTION

Example 1

Figure 1 shows a training device according to the invention, respectively. the training trough 1 and the placement of the individual lower steel plates 2 with circular holes 3. The spacing of the individual circular holes 3 is 250 to 350 mm as required. The size of the individual circular openings 3 is the same and is smaller than the lid of the odor can 13, i.e. the size of the opening is 30 to 50 mm. The width of the training trough 1 corresponds to twice the average body length of the examined animal in adulthood, the spacing of the circular openings 3 for odor cans 13 corresponds to the average body length of the examined animal in adulthood.

In Figure 1, a vertical steel plate 4 with a circular opening 5, which can be closed by a trap door 6, is further shown. The size of the circular opening 5 is 50 to 70 mm, depending on the size of the animal being trained. The trap door 6 can be secured by a roller. In the sides 8 of the training trough 1, the circular openings 7 are secured by a movable cover, which gives them an animal reward. The entire training trough 1 is located on the stands 9 with wheels 10, so that the whole device can be easily manipulated.

After insertion of the canned odor 12 into the sector 11, the trapdoor 6 is locked in the initial position and a trained animal, in our case Rattus norvegicus, weighs between five weeks and three years, resp. 50 g to 800 g. After the smell is smelled from the canned smell 12 at position A, the trapdoor 6 is opened to the test animal and after passing the animal through the circular hole 5 into the second part B of the training trough 1, the trapdoor 6 is lowered the test animal could no longer return to the tested smell can 12 at position A. In the second part B of the training trough 1, the investigated animal sniffs all the sample smell cans 13 in the circular openings 3 and marks the stop with the same smell as the tested smell can 12 position A. After marking the correct sample smell can 13 in Part B of the training device, the animal to be examined is rewarded from the side opening 7.

The precondition for the whole training is a careful socialization of the rat pups from the time of birth to the time suitable for collection from the mother and for inclusion in a suitable group of rats divided by sex. Rats must be accustomed to human manipulation and not show any sign of aggression or timidity. Another condition is the rearing and keeping of the animals in suitably assembled social groups in spacious enriched cages with appropriate equipment taking into account the welfare of the group and each individual. To work in a training facility it is necessary to pre-educate the studied individuals, which consists in positioning training, which will be later investigated rat Rattus norvegicus to mark the correct smell can. Positive motivation with the help of clicker is used for pre-education.

Example 2

According to Example 1, a training device according to the invention was produced. An eight-month old rat was admitted to this training facility to designate the odor can 13 at position III with the same odor of can odor 12 at position I. The rat was admitted to the first part A of the training trough 1 where it smelled odor from odor can 12 located. in the sector 11, then the trap door 6 was opened and the rat passed through the circular hole 5 into the second part B of the training trough L After the rat was running, the trap door 6 was again placed in the home position. Then, the rat sniffed the canned smell 13 in the circular openings 3 and took the learned position for marking in the position of the canned smell 13. After correct marking, the rat was rewarded from the side circular opening 7.

-2GB 307635 B6

Industrial applicability

The new training device can be used in the training of rats to compare human smells for the needs of police forces and as the main, respectively. helper, evidence in identifying human odors. Given that the training device can verify human smells by more trained rats in a relatively short time in a row, the use of the smell training device seems to be an effective and inexpensive solution to the problem of lack of specialized dogs. This training device makes it easy to completely disassemble the individual parts and clean them from odor marks.

PATENT CLAIMS

Claims (16)

A training device, in particular for the training of rats of rattus norvegicus for comparing human odors, characterized in that it has the shape of a rectangular trough (1), its rear side (15) and lower part (16) being of surgical steel, hips (8). ) and a tempered glass front (14), at the bottom (16) there are individual lower steel plates (2), in each individual lower steel plate (2) the circular opening (3) is smaller than the area of the can smell lid (12) and (13), wherein the distance between the individual circular openings (3) corresponds to the size of the trained animal and to the odor purity criteria, on average 250 to 350 mm, the tempered glass in front (14) and side wall (8) being 3 up to 5 mm, the thickness of the steel plates (2) and (4) being 2 to 4 mm, the trough (1) being divided into two areas (A) and (B), separated by a vertical steel plate (4), in which there is an aperture (5) for the animal manhole and this ot The raft (5) is opened and closed by a trapdoor (6) controlled by a training trainer, where under each individual lower steel plate (2) there is space for external storage of odor cans (12) and (13) and the whole device is placed on stands (9). ) with wheels (10). 1 drawing List of reference marks: 1 - trough 2 - bottom steel plate 3 - circular hole 4 - vertical steel plate 5 - hole 6 - trap door 7 - side hole 8 -bok 9 - upright 10 - wheel 11 - sector 12 - can smell - test 13 - canned smells - samples 14 - front side 15 - back side 16 - lower part