JP2001204298A - Method of rearing larva of beetles and rearing apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for the easy rearing of beetles achieving high survival ratio to imago in a high efficiency by the spontaneous transfer of the larva to a new feed bed and provide a rearing apparatus therefor. SOLUTION: A larva W of a beetle hatched from an egg is put into a new feed bed A in a rearing vessel 1. When the feed bed A is degraded by rearing, another new feed bed B placed in another rearing vessel 2 is connected to the old bed in a state in contact with each other. The larva W moves by its own powder from the old bed to the new bed searching for a fresh feed bed to achieve the spontaneous transfer of the larva to the new rearing vessel 2. The transfer procedure is repeated until the larva is grown to an imago. An opening of the rearing vessel 1 provided with openings 4, 5 at both ends is connected through a connecting means 3 to an opening of the rearing vessel 2 having openings 6, 7 at both ends.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method of breeding beetles such as beetles and stag beetles, and a breeding apparatus used in the method.

[0002]

2. Description of the Related Art Beetles such as beetles and stag beetles continue to decrease year by year due to the deterioration of their growing environment due to the use of pesticides in agriculture and forestry, the conversion of flatland forests to agricultural land and extensive deforestation. . The popularity of stag beetles among big city children is extremely high, especially for rare species such as giant stag beetle. Under such circumstances, breeding artificially for the purpose of distribution and sales has been actively performed.

[0003] Artificial breeding was initially performed by setting up a breeding ground in a forest or forest. In this method, a method was used in which a hole was drilled in a log waste material that became unnecessary due to shiitake mushroom cultivation and larvae were inserted, and the log was stacked directly on the soil, but in this method, a heavy log was used. It is avoided because of heavy labor such as transport and stacking. In addition, since this method is bred by nature, it depends on the weather and the condition of the log,
Production efficiency was also poor.

[0004] Therefore, the deciduous tree waste material is disclosed in
As described in No. 8036, the mycelium of mushrooms such as oyster mushrooms is grown in small pieces and granules, and this is used as a breeding mat, to which nutrients are added, bottled, and larvae are put therein. The breeding method has been adopted. Furthermore, at present, breeding mats use sawdust of deciduous trees such as oaks and oaks generated in large quantities at sawmills and the like.

However, in the above-described breeding method using breeding bottles, the mushroom mycelium is killed or germs spread in 1 to 2 months, and the excretion of larvae increases.
Most larvae will die if left untouched. Therefore, usually, a method has been devised to increase the adult rate by regularly transferring to fresh breeding mats. However, only a few of them died on the way and became adults.

[0006] As a result of studying the etiology of the larva, the inventor found that a problem occurred at the time of the transfer, and at the time of the transfer, the thing originally in the soil was exposed to the air with a temperature change, and Exposure to light, etc., the possibility of bacterial infection due to contact with transfer equipment and human fingers, and the pressure on the larvae and the environment different from the soil give strong stress to the larvae It was thought that it was the result.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is referred to as a "feeding bed" in the sense that fresh breeding mats (hereinafter referred to as "feed beds" in their own right serve as bait for larvae and house). The present invention provides a method for breeding beetles and stag beetles, such as beetles and stag beetles, which is easy to breed by natural transfer to larvae, and a breeding apparatus used for the breeding method.

[0008]

Means for Solving the Problems In order to solve the above problems, the present invention relates to a method for rearing larvae of beetles according to the present invention. When the food bed becomes old, a new food bed B put in another breeding container 2 is connected so as to be in contact with the old food bed, and the larva W is able to remove the old food floor by itself in search of a fresh food bed. By moving to a new food bed B, it is naturally transferred to another breeding container 2, and the transfer is repeated successively until it becomes an adult.

In the breeding apparatus of the present invention used in the above method, a breeding vessel 1 having openings 4 and 5 on both sides and a breeding vessel 2 having openings 6 and 7 on the other sides are connected. Opposing openings can be interconnected via means 3.

In the breeding apparatus having the above-described structure, the openings 4 and 6 at one end of the breeding containers 1 and 2 have ventilation holes 10.
And a deep-ventilation lid 8 that can secure the air pool space S, and a bottom lid 9 is applied to the openings 5 and 7 at the other end.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings showing examples. First, in the beetle larva breeding method of the present invention, as shown in FIG. 1, a beetle larva W hatched from an egg is placed in a new bait bed A placed in a breeding container 1, and the bait bed becomes old. The larva W moves from the old bait floor to the new bait floor B on its own in search of a fresh bait floor by connecting a new bait floor B placed in another breeding container 2 so as to contact the old bait floor. Then, the animals are naturally transferred to another breeding container 2, and the transfer is repeated successively until the animals become adults.

That is, in the present invention, at the time of transfer,
It does not expose anything that originally inhabits the soil to the air and expose it to the wind or light, nor does it come into contact with transfer equipment or human fingers to directly grab it.
Therefore, there is no chance that the larva will be infected with bacteria, the pressure that holds down the larva, or the stress that exerts a strong stress on the larva due to an environment different from the soil will not occur. The transfer is completed.

[0013]

[Embodiment of breeding method] The breeding of male stag beetle will be described in more detail. Male stag beetles hatch from eggs, and the first-instar larvae of 1 to 2 mm repeatedly molt and become pupae of about 30 g after the third instar. Then, about one month after the pupa, and about a year after hatching, it emerges and becomes an adult. The present invention is a method of artificially rearing in a container during the period of the larva.

At first, nutrients such as flour and kinako are added to deciduous sawdust such as oak and mizunara.
Plant mushroom fungi such as enoki mushrooms, kawara mushrooms, etc. and control the humidity and temperature to breed them so that the mushroom hypha spreads throughout the sawdust. The breeding container 1 is filled with the mushroom mycelium-attached sawdust (feeding bed) to the full opening, and the first-instar 1-2 mm larva hatched from an egg is placed therein.

After about two months, the mushroom mycelium on the feed bed stops growing and dies, and the larvae's feces increase in the container mixed with the feed bed. Then, in this state, various bacteria grow and the floor environment deteriorates, and the larvae in the floor weaken and die in a few weeks. Therefore, once every two months, the larvae are transferred to the breeding container 2 containing another new food bed. For this transfer, never use a transfer device or pinch with your fingers to directly touch the larvae.

The transfer method is as follows. In the order of (1) to (5) shown in the upper part of FIG. (Figure 1
(No. 3)), leave it for about a week. That is, the larva is drawn to the new feeding bed B and the old feeding bed A
(Fig. 3), the larva (W1) in the old food bed A crosses the boundary between the old food bed A and the new food bed B (W2), and then moves to another container. (Moving into the food bed B (W3)). If it still does not move, it can be stimulated by making an unpleasant sound on the old food bed side to urge it to move to the new food bed B direction.

Moved to another breeding container 2 ((4) in FIG. 1)
No.), a ventilation deep lid 8 is put on (shown at (5) in FIG. 1). Then, after the management is performed for about 2 months, the next transfer is performed again in the same manner as the above method. Such transfer was repeated 4 to 5 times, and the larvae became approximately 30
g of pupa will not move in the food bed. And
After about a month, the pupae evolve and become adult adults.

When the larvae are small, it is efficient to use the breeding container 2 having a size matching the size of the larva, or to unify the container size to the maximum required before the pupa. The use of successively larger larvae has the advantage of requiring less food bed when the larvae are smaller, and having the same container size does not require the larvae to select each one as the larvae grow.

[0019]

[Embodiment of breeding apparatus] The breeding apparatus of the present invention for use in the above larva breeding method is shown in FIGS.
As shown in the figure, a rearing container 1 having openings 4 and 5 on both side ends and a rearing container 2 having openings 6 and 7 on the other side ends are opposed to each other via a connecting means 3. To be interconnected. ((A) and FIG. 4 of FIG. 2 show a connected state, and (B) of FIG. 2 shows a separated state.)

Openings 4 and 6 at one end of the breeding containers 1 and 2 have a ventilation hole 10 with a filter 13 for preventing invasion of various bacteria and air for supplying air required for breathing. A deep ventilation lid 8 capable of securing the pool space S is provided, and a bottom lid 9 having a pedestal plate 11 for stably raising the breeding container can be provided in the openings 5 and 7 at the other end.

For this purpose, each of the openings 4, 6, 5, 7
Are provided with male threads 14 on the outer wall of the cylindrical surface, and female threads 15 corresponding to the male threads 14 on the inner surfaces of the cylindrical surfaces of the deep ventilation lid 8 and the bottom lid 9. And the said ventilation deep lid 8 and the bottom lid 9
Can be attached to any of the openings 4, 6, 5, and 7.

When the rearing containers 1 and 2 are connected at the time of transfer, the opening 5 of the rearing container 1 and the opening 6 of the other rearing container 2 are opposed to each other, and
Then, the connecting ring 12 having one female thread 15 is screwed and connected. The male thread 14 and the female thread 15 can be connected to each other even if they are of different sizes as long as the corresponding relationship is maintained between opposing ones. The connecting means 3 may be in various forms for connecting the two rearing containers 1 and 2 such as a rubber band stopper and a clip stopper, for example, in addition to the screwing method as described above.

[0023]

[How to use the breeding device] Regarding the use of the breeding device, as shown in FIG. 5, the breeding container 1 filled with the bait floor containing the larva W is always set up and the temperature and humidity are controlled. Keep it.

Then, about every two months, the larvae are replaced with the old feed bed A.
Is transferred from the breeding container 1 containing the to the breeding container 2 containing the new bait floor B. At that time, as shown in FIG.
And the ventilation deep lid 8 of the breeding container 2 containing the new bait floor B
Are removed, and the openings 5 and 6 are connected via the connecting means 3. Then, if left as it is for about one week, as shown in FIG.
6 and moves from the old food bed A to the new food bed B by itself.

After confirming the movement, as shown in FIG. 6, a ventilation deep lid 8 is attached to the opening 6, and the breeding container 1 is set up again to manage and store the temperature and humidity. deep.
In order to allow the larvae W to pass through without resistance, the larvae W are brought into close contact with the boundary between the new bait bed and the old bait bed at the openings 5 and 6 so that no space is created. For this purpose, it is advisable to insert the food bed so that it slightly rises from the mouths of the openings 5, 6. In this case, care should be taken so that the boundary is not too hard due to the overheating and the compression of the food bed.

Depending on the nature of the beetle, the breeding containers 1 and 2 may be placed vertically or horizontally depending on the nature of the beetle. FIG. 1 shows a vertical type, and FIG. 7A shows a horizontal type. In this horizontal type, as shown in FIG.
It is preferable to use a rectangular base plate 11 for the bottom cover 9.

[0027]

According to the present invention, as described above, beetle larvae naturally move to another breeding container 2 by self-moving from an old bait to a new bait in search of a fresh bait. In this case, the chance of bacterial infection and the cause of stress during the transfer can be almost eliminated. As a result, the larvae were successfully bred to adulthood with almost no death.

The transfer operation can be performed only by connecting the breeding containers and placing them for a while, so that it is possible to perform the transfer without touching the larvae and almost keeping the hands dirty. Further, the breeding containers 1 and 2 can be very easily connected by the connecting means 3, and there is no scattering of sawdust due to larva excavation as in the past, and post-processing is very easy.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating larval transfer procedures (1) to (5) of the present invention.

FIG. 2 is a perspective view showing a state in which the breeding apparatus is connected in (a) and a state in which (b) is separated.

FIG. 3 is a longitudinal side view showing a state in which a larva moves into a new food bed.

FIG. 4 is a longitudinal sectional side view showing a connected state of the breeding containers.

FIG. 5 is a longitudinal side view showing a state where larvae are contained in a feed bed A.

FIG. 6 is a longitudinal side view showing a state where larvae have been transferred to a new food bed B.

FIGS. 7A and 7B are perspective views each showing a horizontal type transfer method and FIG. 7B showing a form of a bottom cover;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Breeding container 2 Breeding container 3 Connecting means 4 Opening 5 Opening 6 Opening 7 Opening 8 Deep ventilation lid 9 Bottom lid 10 Ventilation hole 11 Pedestal plate 12 Connecting ring 13 Filter 14 Male thread 15 Female thread S Air pool Space A Feeding bed B Feeding bed W Larvae

Claims (3)

[Claims] 1. A beetle larva (W) hatched from an egg is placed in a new feed bed (A) placed in a breeding container (1), and when the feed bed becomes old, it is brought into contact with the old feed bed. By connecting a new feed bed (B) in another breeding container (2), the larva (W) moves from the old feed bed to the new feed bed (B) by itself in search of a fresh feed bed, A method for rearing larvae of beetles, which comprises naturally transferring to another breeding container (2) and repeating the transfer in order until the larva becomes an adult. 2. A breeding container (1) having openings (4) and (5) on both sides and another opening (6) on both sides.
2. A beetle larva breeding apparatus for use in a breeding method according to claim 1, wherein said breeding container (2) provided with (7) can be connected to each other through a connecting means (3) at an opening facing each other. 3. A breeding container (1) having openings (4) and (5) on both sides and another opening (6) on both sides.
The opening facing the breeding container (2) provided with (7) can be mutually connected via a connecting means (3), and the opening (1) on one side end of the breeding container (1), (2) is provided. 4) and (6) are provided with a deep ventilation lid (8) which has a ventilation hole (10) and can secure an air reservoir space (S), and has openings (5),
The beetle larva breeding apparatus according to claim 2, wherein the bottom cover (9) is provided on (7).