JP2003000094A - Apparatus for selecting cultured feed organism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for selecting cultured feed organisms, capable of reducing manual work force by automatically selecting the feed organisms having required sizes from a culturing aquarium. SOLUTION: This apparatus has the culturing aquarium 1 storing a culturing liquid W including the feed organisms B, a recovering net 2 having reticulations 21, 21... with required sizes and a shaking tool 3 for shaking a net-supporting part 31 to which the recovering net 2 can be freely detachable. The cultured liquid W in the culturing aquarium 1 is sent through a delivering passage 11 to the recovering net 2 to allow the feed organisms B having sizes larger than the reticulations 21 to be scooped by the recovering net 2 by passing the culturing liquid W through the recovering net 2 while shaking the recovering net 2 by the shaking tool 3. As a result, the work force is reduced and the selecting speed is remarkably improved by automating the selecting operation of the feed organisms which has been required to rely on the man power by shaking the recovering net 2 by the shaking tool 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a culture feed organism selection apparatus for automatically selecting a feed organism of a required size from a culture water tank to reduce work labor by human power.

[0002]

2. Description of the Related Art As is well known, fish are a valuable marine resource for us, and are widely cultivated.
By the way, rotifers that are plankton (hereinafter referred to as "rotifers") are used as a feed used for aquaculture, particularly as a feed for larval larvae just after hatching (initial feed).

The characteristic of this rotifer is that it is highly nutritious and easily digested and absorbed, that it has high proliferative ability due to parthenogenesis, and that it does not deteriorate water quality. , Cultured in an aquarium.

In order to provide an optimum initial feed for larvae, microorganisms such as chlorella and yeast, which serve as food for rotifers, and impurities such as excrement of rotifers are removed,
Only a rotifer of a required size or larger needs to be concentrated and removed from the culture water tank.

However, this sorting work involves manually inserting a net such as a tuna net into the culture water tank of the rotifer and scooping up the contained liquid, and then shaking the net to shake off the unwanted matter to rotifer of a required size. It was to remove the oil and it had to be repeated many times to obtain the required amount, which required a great deal of labor.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above drawbacks, and its object is to:
It is an object of the present invention to provide a culture feed organism selection apparatus that automatically selects a feed organism of a required size from a culture water tank to reduce work labor by human power.

[0007]

Means adopted by the present inventor for solving the above problems will be described below with reference to the accompanying drawings.

That is, according to the present invention, a culture water tank 1 containing a culture solution W containing a feed organism B; and a mesh 21 of a required size.
A recovery net 2 having 21; and a shaker 3 for rocking the net support 31 to which the recovery net 2 can be detachably attached, the culture solution W in the culture water tank 1 being delivered.
It is fed into the collection net 2 via 11 and this collection net 2
By passing the culture solution W through the shaker 3 while shaking the same, a technical means was adopted in which the feed organism B having a size larger than the mesh 21 can be filtered and selected in the recovery net 2.

Further, in order to solve the above-mentioned problems, the present invention arranges a drainage container 4 below the net supporting portion 31 in addition to the above-mentioned means as necessary, and collects the unnecessary liquid D passing through the recovery net 2. The technical means of discharging from the drainage channel 41 of the drainage container 4 was adopted.

Further, in order to solve the above-mentioned problems, the present invention adopts a technical means of advancing and retracting the shaker 3 by a compressed air cylinder in addition to the above-mentioned means as necessary.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in more detail with reference to the drawings specifically showing the following.

An embodiment of the present invention will be described with reference to FIGS. 1 and 2. In the figure, what is indicated by reference numeral 1 is a culture water tank, and the culture water tank 1 contains a culture solution W containing a feed organism B. What is designated by reference numeral 2 is a collection net, and the collection net 2 has a mesh 21 of a required size.
21 and a handle 22. The meshes 21, 21, ... Are minute, and in the present embodiment, 0.
2 mm. What is indicated by reference numeral 3 is a shaker,
The shaker 3 is connected to a net support 31 to which the recovery net 2 can be detachably attached, and a compressor C
The net support portion 31 is shaken by power such as.

Further, what is indicated by reference numeral 4 is a drainage container, and this drainage container 4 is arranged below the net support portion 31, and the unnecessary liquid D which has passed through the mesh 21 of the recovery net 2 is discharged. It is for doing. In the present embodiment, the drain support container 4 has a net support 31 installed therein.

The selection procedure of this embodiment will be described below.
Rotifers are cultivated in the culture tank 1 as a feed organism B, and in particular, the water rotifer is employed. First,
The culture solution W in the culture water tank 1 is fed into the recovery net 2 (at about 120 liters / minute) via the delivery path 11. As the culture solution W, seawater or diluted seawater is used.

At this time, the recovery net 2 is moved by the shaker 3 (preferably, stroke widths of 30 mm to 70 mm, 60).
Allow culture medium W to pass through with rocking (in turns / minute). In the present embodiment, a compressed air cylinder is adopted as the shaker 3 to move it back and forth. The reason for this is that if a motor is used near the device, the seawater of the culture solution W easily conducts electricity, so there is a risk of electric shock due to electric leakage, and the electric wiring part is easily corroded by seawater and may cause a failure. This is because.

Further, in this embodiment, the required size of the feed organism B to be selected can be set by the mesh 21 of the recovery net 2. The horned rotifer employed in this embodiment has a body length of about 0.1 mm to 0.3 mm, and has an optimal size of 0.2 mm as a bait.
Select and collect the above items.

By shaking the collecting net 2, the feeding organism B having a size larger than the mesh 21 is picked up in the collecting net 2, while feeding organisms having a body length of less than 0.2 mm and feeding organisms. The unnecessary liquid D containing impurities such as microorganisms such as Chlorella and yeast and excrements of feed organisms is selected from the recovery net 2, passes through and is discharged. At this time, by disposing the drainage container 4 below the net support portion 31, the unnecessary liquid D that has passed through the recovery net 2 can be discharged from the drainage channel 41 of the drainage container 4.

Further, by connecting the drainage channel 41 to the culture water tank 1,
By feeding the unnecessary liquid D again, it is possible to grow the feed organism B that has not reached the required size again. In addition, when seawater is used as the culture solution W, it may be difficult to replenish it again due to the location conditions of the water tank.

In this way, the feed organism B having a size larger than the required size can be collected by filtering and selecting the feed organism B to give an optimal initial feed to the larvae.

Although the present invention is constructed as described above,
The present invention is by no means limited to the illustrated embodiments, and various modifications can be made within the scope of the claims. For example, the shaker 3 is not limited to one operated by pneumatic pressure. , A hydraulic cylinder may be used, and the feeding organism B is not limited to the horned rotifer, other rotifers, or other plankton may be adopted. Belong to the target range.

[0021]

As described above with reference to the embodiments, in the present invention, the sorting operation of the feeding organisms, which had to rely on human power, was automated by shaking the collection net with a shaker. As a result, the work effort can be reduced and the sorting speed can be dramatically improved, so that the industrial utility value is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an embodiment of the present invention.

[Explanation of symbols]

1 culture water tank 11 Delivery route 2 collection net 21 mesh 22 Handle 3 shaker 31 Net support 4 drainage containers 41 drainage W medium B Feeding organism D unnecessary liquid C compressor

Claims (3)

[Claims] 1. A culture water tank 1 containing a culture solution W containing a feed organism B; a recovery net 2 having meshes 21, 21 ... Of a required size; a net to which the recovery net 2 can be detachably attached. The shaker 3 that shakes the support portion 31 is provided, and the culture solution W in the culture water tank 1 is fed into the recovery net 2 through the delivery path 11, and the recovery net 2 is shaken by the shaker 3. A culture feed organism sorter characterized in that the feed organism B having a size larger than the mesh 21 can be picked up and sorted in the recovery net 2 by allowing the same culture solution W to pass while shaking. 2. The drainage container 4 is disposed below the net support portion 31, and the unnecessary liquid D passing through the recovery net 2 is discharged from the drainage channel 41 of the drainage container 4. 1. The culture feed biological selection device according to 1. 3. The culture feed bio-sorting device according to claim 1, wherein the shaker 3 is moved forward and backward by a compressed air cylinder.