Fish feces collection device and use method thereof

Abstract

A fish feces collection device and a use method thereof. The collection device comprises an aquaculture container (1) provided with a cavity therein, a feces collection assembly (2), and a discharging component (3), wherein the discharging component (3) is located inside the aquaculture container (1), the discharging component (3) is provided with a water inlet hole (4) in communication with a cavity of the discharging component (3), and the water inlet hole (4) is provided inside the discharging component (3) in a region between a water surface and the bottom surface of the aquaculture container (1); and the cavity of the feces collection assembly (2) communicates with the cavity of the discharge component (3), and the other end of the cavity of the feces collection assembly (2) is connected to a driving device for driving a water flow to circulate between the aquaculture container (1) and the feces collection assembly (2).

Description

A fish feces collection device and its usage method Technical Field

[0001] This invention relates to the field of equipment for aquaculture, and in particular to a fish excrement collection device and its method of use. Background Technology

[0002] Precise feed formulation requires not only a thorough understanding of the nutritional needs of fish, but also analysis of the digestibility of feed nutrients. Because fish live in water, collecting fecal samples is particularly difficult compared to analyzing the digestibility of feed nutrients for terrestrial animals.

[0003] Currently, fish feces samples are mainly collected through methods such as siphon collection, net collection, and squeeze collection in tank culture. The siphon method involves placing a suction device inside the aquarium, connected to a feces collection container via a siphon tube. Because the suction device can only suck up feces located in its vicinity, there is considerable uncertainty; more feces around the suction device results in a larger volume of samples, while less around it results in a smaller volume. Net collection only allows collection after the fish feces have floated to the surface, severely impacting collection efficiency. Squeeze collection requires an adhesion device to hold the feces, as well as a scraper to remove the feces adhering to the adhesion device and push the feces to the discharge outlet. This method is not only structurally complex but also time-consuming and labor-intensive.

[0004] In summary, how to design a fish feces collection device and its usage method to improve the collection volume and efficiency of fish feces, and simplify the operation steps, is a technical problem that urgently needs to be solved by those skilled in the art.

[0005] Summary of the Invention

[0006] The purpose of this invention is to address the deficiencies and shortcomings of the prior art by providing a fish feces collection device and its usage method, so as to improve the collection volume and efficiency of fish feces, simplify the operation steps, and reduce the difficulty of operation.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] The present invention provides a fish feces collection device, including an aquaculture container with an internal cavity, a feces collection component and a discharge component. The discharge component is located inside the aquaculture container and has a water inlet hole that communicates with the cavity of the discharge component. The water inlet hole is provided in the area between the water surface and the bottom surface of the aquaculture container in the discharge component.

[0009] The cavity of the excrement collecting component is connected with the cavity of the discharging component, and the other end of the cavity of the excrement collecting component is connected with a driving device for driving water to circulate between the breeding container and the excrement collecting component.

[0010] Preferably, the discharging component is vertically arranged in the breeding container.

[0011] Preferably, the discharging component is located in the middle of the breeding container, or a plurality of discharging components are distributed along the length and / or width of the breeding container, and the interval between adjacent discharging components is not greater than the sum of the maximum collection ranges of the adjacent discharging components.

[0012] Preferably, the excrement collecting component comprises a water storage container and a feces storage container, the cavity of the water storage container is connected with the cavity of the discharging component, the feces storage container is located at the lowest end of the water storage container, the cavity of the water storage container is connected with the cavity of the feces storage container through a switch component for opening and closing the lower outlet of the water storage container, and the top end of the water storage container is connected with the driving device.

[0013] Preferably, the water storage container is connected with the discharging component through a connecting pipeline, and the cross-sectional area of the water storage container is greater than that of the connecting pipeline.

[0014] Preferably, the cavity of the bottom end of the water storage container has a structure of large at the top and small at the bottom.

[0015] Preferably, the switch component is a blocking plate arranged on the upper part of the bottom outlet of the water storage container, the cross-sectional area of the blocking plate is not less than that of the bottom outlet of the water storage container, the side walls of the water storage container face each other and are provided with sliding grooves matched with the blocking plate, and the blocking plate is slidingly arranged in the sliding grooves.

[0016] Preferably, the inside of the feces storage container is provided with a filtering device, and the filtering device is located at the lower part of the opening of the feces storage container.

[0017] The application also provides a use method of the fish excrement collecting device.

[0018] S1. Close the switch component, connect the clean feces storage container with the water storage container, and open the switch component after assembly;

[0019] S2. Start the driving device to make the excrement in the breeding container enter the feces storage container with water;

[0020] S3. Close the switch component, remove the feces storage container to take out the excrement, and repeat S1 to S3 until the collected excrement meets the requirement, and analyze the digestibility of fish feed according to the collected excrement.

[0021] Preferably, the fish feed comprises the following raw materials in parts by weight: fish meal 8 parts, meat meal 7 parts, rapeseed meal 14 parts, soybean meal 38 parts, sunflower meal 5 parts, soybean oil 3 parts, flour 20 parts, calcium dihydrogen phosphate 2 parts, vitamin premix 0.5 parts, trace element premix 2 parts, lysine 0.3 parts, methionine 0.2 parts.

[0022] The present application has the following technical effects relative to the prior art:

[0023] The present application sets the discharging component in the breeding container, the area between the water surface and the bottom of the breeding container of the discharging component is provided with the water inlet hole, the water inlet hole is communicated with the cavity in the discharging component, one end of the feces collecting assembly is communicated with the discharging component, and the other end is connected with the driving device for driving water circulation, so that the feces mixed in the water flows into the feces collecting assembly with the water, and the feces at different water levels can be collected at the same time, which not only improves the collection efficiency, but also improves the feces collection amount, and compared with the extrusion collection mode, the operation steps are reduced, the operation difficulty is reduced, and the test personnel are convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Fig. 1 is a structural schematic view of a fish feces collecting device;

[0026] Fig. 2 is an enlarged schematic view of A;

[0027] Fig. 3 is an enlarged schematic view of B;

[0028] Fig. 4 is a structural schematic view of a discharging component.

[0029] Among them, 1, breeding container; 2, feces collecting assembly; 3, discharging component; 4, water inlet hole; 5, water storage container; 6, feces storage container; 7, switching component; 8, connecting pipeline; 9, filtering device; 10, boss; 11, first necking; 12, second necking; 13, plugging plate; 14, handle. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] As shown in FIGS. 1 to 4, the present application provides a fish feces collecting device, which comprises a breeding container 1, a feces collecting assembly 2 and a discharging component 3 located inside the breeding container 1. The breeding container 1, the feces collecting assembly 2 and the discharging component 3 all have cavities inside. Water inlets 4 are arranged in the region between the water surface and the bottom surface of the breeding container 1 of the discharging component 3, and the water inlets 4 are in communication with the cavities inside the discharging component 3. The water in the breeding container 1 flows into the cavity of the discharging component 3 through the water inlets 4. By arranging the water inlets 4 in the region between the water surface and the bottom surface of the breeding container 1 of the discharging component 3, the feces at different water levels can flow into the cavity of the discharging component 3 with the water flow. Compared with the form of arranging the discharging component 3 only at the bottom of the breeding container 1, the present application can collect the feces without waiting for the feces to sink to the bottom of the breeding container 1, thereby improving the feces collecting efficiency. Moreover, the present application can collect the feces from multiple water levels at one time, and can also improve the amount of feces collected at one time compared with the mode of collecting the feces from only one water level at one time.

[0033] One end of the cavity of the feces collecting assembly 2 is in communication with the cavity of the discharging component 3, and the other end of the cavity of the feces collecting assembly 2 is connected with a driving device for driving the water flow to circulate between the breeding container 1 and the feces collecting assembly 2. The driving device can be a water pump or the like. In use, the driving device is turned on, so that the feces flow from the inside of the breeding container 1 through the water inlets 4 and the cavity of the discharging component 3 in sequence, and finally flow into the cavity of the feces collecting assembly 2 for feces collection. The collecting mode of the present application reduces the operation difficulty and simplifies the operation steps compared with the extrusion collection, and is convenient for the operator to operate. If the feces collecting assembly 2 is located inside the breeding container 1, the space inside the breeding container 1 is reduced, and it is inconvenient to clean the collected feces. Therefore, the feces collecting assembly 2 is preferably located outside the breeding container 1.

[0034] The breeding container 1 can be a fish tank, a fish barrel, a fish pond, etc. In the present application, the breeding container 1 is preferably a breeding barrel, and the discharging component 3 can be vertically arranged in the breeding container 1 or can be obliquely arranged in the breeding container 1. In the present application, the discharging component 3 is vertically arranged in the breeding container 1, that is, the length direction of the discharging component 3 is parallel to the axial direction of the breeding barrel, so as to uniformly collect feces at different water levels and avoid the problem that the amount of collected feces is reduced due to the fact that the discharging component 3 is too close to the edge of the breeding container 1 at some water levels. If the collection range of one discharging component 3 can cover different areas such as front and back and left and right at the same water level, only one discharging component 3 is arranged in the middle of the breeding container 1. If the collection range of one discharging component 3 cannot cover different areas such as front and back and left and right at the same water level, a plurality of discharging components 3 are arranged at intervals along the length and / or width direction of the breeding container 1, and the interval between adjacent discharging components 3 is not greater than the sum of the maximum collection ranges of the adjacent discharging components 3, so as to improve the amount of feces collected at one time.

[0035] In order to avoid fish entering, the diameter of the water inlet hole 4 is smaller than the size of the smallest fish in the breeding container 1. The discharging component 3 can be cylindrical, prismatic, etc. Preferably, the discharging component 3 is a tubular structure, the diameter of the tubular structure is 20-50 mm, and the diameter of the water inlet hole 4 is 3-10 mm.

[0036] The feces collection assembly 2 comprises a water storage container 5 and a feces storage container 6. The cavity of the water storage container 5 is in communication with the cavity of the discharging component 3. The feces storage container 6 is located at the lower part of the water storage container 5. The cavity of the water storage container 5 is in communication with the cavity of the feces storage container 6 through a switching component 7 for opening and closing the outlet at the lower part of the water storage container 5. The top end of the water storage container 5 is connected with a driving device. When it is necessary to collect feces, the switching component 7 is opened, so that the feces in the water storage container 5 enters the feces storage container 6. Conversely, the switching component 7 is closed. Preferably, the feces storage container 6 is connected with the lowest end of the water storage container 5.

[0037] In order to facilitate the removal of the collected feces, the feces storage container 6 and the water storage container 5 are preferably detachably connected. Preferably, the lower end of the water storage container 5 is provided with a first necked portion 11, the upper end of the feces storage container 6 is provided with a second necked portion 12, the first necked portion 11 is provided with external threads, and the second necked portion 12 is provided with internal threads matched with the external threads, so as to screw the feces storage container 6 on the water storage container 5.

[0038] In order to make the feces in the water storage container 5 more settled to the lowest end, so as to improve the amount of collected feces, the application is provided with a water storage container 5 connected with the discharging component 3 through a connecting pipeline 8, and the cross-sectional area of the cavity in the water storage container 5 is larger than that of the connecting pipeline 8, so as to reduce the flow rate of water flow in the water storage container 5 and make the feces settle; further, the cavity in the bottom of the water storage container 5 is large at the top and small at the bottom, so as to increase the contact area of the water at the lower part with the inner wall of the water storage container 5, so as to increase the settlement amount of the feces, wherein the cavity in the bottom of the water storage container 5 is the area of the cavity of the water storage container 5 located below the connecting pipeline 8 and above the first neck 11, preferably, the water storage container 5 is a return pipe with an inner diameter 2-3 times larger than that of the connecting pipeline 8, the inner diameter of the connecting pipeline 8 is 20-50 mm, and the lower end of the return pipe is a conical structure large at the top and small at the bottom. The bottom of the breeding container 1 is provided with a pipe joint, and the connecting pipeline 8 is connected with the discharging component 3 through the pipe joint.

[0039] The switch component 7 can be various valves or other structures, and the application preferably uses a sealing plate 13 placed at the upper part of the outlet in the bottom of the water storage container 5 (i.e. at the first neck 11), the cross-sectional area of the sealing plate 13 is not less than that of the first neck 11, the side wall of the water storage container 5 is provided with a sliding groove matched with the sealing plate 13, and the sealing plate 13 is slidably placed in the sliding groove. Taking out the sealing plate 13 from the sliding groove opens the first neck 11, so that water can flow into the feces storage container 6, and vice versa. In order to facilitate the removal of the sealing plate 13, a handle 14 is provided at the end of the sealing plate 13.

[0040] In order to facilitate the separation of the feces mixed in the water, the inside of the feces storage container 6 is provided with a filtering device 9, which is detachably placed at the lower part of the connecting part of the feces storage container 6 and the water storage container 5, so as to avoid damaging the filtering device 9, and the application preferably uses a filtering net bag as the filtering device 9, the mesh of which is 100-300 meshes, the inside of the feces storage container 6 is provided with a boss 10, preferably a ring-shaped boss, the filtering device 9 has an edge which is not easy to deform, and the edge is placed on the boss 10, the filtering device 9 is taken out when cleaning is needed, and after cleaning is completed, the filtering device 9 is placed back on the boss 10, and preferably, the feces storage container 6 is conical with the upper part small and the lower part large, so as to increase the amount of waste water that can be stored.

[0041] The application also provides a method for using the fish feces collecting device, which uses the fish feces collecting device as above, and includes the following contents:

[0042] S1. Close the switch component 7, connect the clean feces storage container 6 with the water storage container 5, and open the switch component 7 after assembly is completed;

[0043] Before S1, the following steps can also be included:

[0044] S11. Put water of a set level into the breeding container 1 and start the driving device to circulate the water;

[0045] S12. Put the test fish into the breeding container 1, and after domestication to a normal feeding state, start to feed the test feed, and observe and record the excretion peak time of the test fish;

[0046] S13. Before the excretion peak of the test fish appears, close the switch part 7, unscrew the manure storage container 6, and take out the filter device 9 to clean it. After cleaning, put the filter device 9 back into the manure storage container 6.

[0047] S2. Keep the water flow circulating, and make the manure in the breeding container 1 flow into the manure storage container 6 with the water flow, wherein the manure is intercepted on the upper surface of the filter device 9, and the water flows into the inside of the manure storage container 6;

[0048] If the driving device is not started in S1, start the driving device before S2 starts; if the driving device is started in S1, keep the driving device always in the started state. The manure settled at the bottom of the water storage container 5 enters the manure storage container 6, and the clean water in the upper part of the water storage container 5 flows into the circulating system.

[0049] S3. Close the switch part 7, unscrew the manure storage container 6, and take out the collected manure. Repeat S1 to S3 until the amount of collected manure reaches the test requirement, and analyze the digestibility of the fish feed according to the collected manure.

[0050] The taken-out manure is carefully placed on a sample picking platform for sample selection.

[0051] In this embodiment, the fish feed comprises the following raw materials in parts by weight: fish meal 8 parts, meat meal 7 parts, rapeseed meal 14 parts, soybean meal 38 parts, sunflower meal 5 parts, soybean oil 3 parts, flour 20 parts, calcium dihydrogen phosphate 2 parts, vitamin premix 0.5 parts, trace element premix 2 parts, lysine 0.3 parts, and methionine 0.2 parts.

[0052] The method is used to collect the manure of the test fish, and a comparison test is carried out under the condition that the fish feed, the size of the breeding container 1, and the number of the test fish in the breeding container 1 are consistent, wherein the experimental steps of the siphon method are to put the suction device connected with the pipeline into the bottom of the breeding container 1, so that the manure of the fish is sucked out through the suction device, until the water sucked out does not contain the manure of the fish; and the experimental steps of the net fishing method are to fish out the manure floating in the breeding container 1 in time with a fishing net after the excretion peak of the test fish, until no floating manure can be seen by naked eyes.

[0053] The test results are shown in the following table:

[0054] The test data results show that the sample amount collected by the method is obviously higher than that of other methods.

[0055] It is to be understood that the application is not limited to the details of the above-exemplified embodiment and can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are part of the application.

Claims

1. An apparatus for collecting fish faeces, characterised in that: The application relates to a fish breeding device, which comprises a breeding container, a feces collecting assembly and a discharging component. The cavity of the feces collecting assembly is connected with the cavity of the discharging component at one end, and the other end of the cavity of the feces collecting assembly is connected with a driving device for driving water circulation between the breeding container and the feces collecting assembly.

2. The fish waste collection device of claim 1, wherein: The discharging component is vertically arranged in the breeding container.

3. The fish waste collection device of claim 2, wherein: The discharging component is arranged in the middle of the breeding container, or a plurality of the discharging components are arranged at intervals along the length and / or width of the breeding container, and the interval between adjacent discharging components is not greater than the sum of the maximum collection ranges of the adjacent discharging components.

4. Fish waste collecting device according to any one of claims 1 to 3, characterized in that: The feces collecting assembly comprises a water storage container and a feces storage container, the cavity of the water storage container is connected with the cavity of the discharging component, the feces storage container is arranged at the lower part of the water storage container, the cavity of the water storage container is connected with the cavity of the feces storage container through a switch component for opening and closing the outlet at the lower part of the water storage container, and the top end of the water storage container is connected with the driving device.

5. The fish waste collection device of claim 4, wherein: The water storage container is connected with the discharging component through a connecting pipeline, and the cross-sectional area of the water storage container is greater than that of the connecting pipeline.

6. The fish waste collection device of claim 7, wherein: The cavity of the bottom end of the water storage container has a structure of being large at the top and small at the bottom.

7. The fish waste collection device of claim 6, wherein: The switch component is a blocking plate arranged at the upper part of the outlet at the bottom of the water storage container, the cross-sectional area of the blocking plate is not less than that of the outlet at the bottom of the water storage container, the side walls of the water storage container are arranged face to face and are provided with sliding grooves matched with the blocking plate, and the blocking plate is slidingly arranged in the sliding grooves.

8. The fish waste collection device of claim 7, wherein: The inside of the feces storage container is provided with a filtering device arranged at the lower part of the connecting part between the feces storage container and the water storage container.

9. A method of using a fish waste collection device, characterized by: The fish feces collecting device comprises the following steps: S1. closing the switch component, connecting the clean feces storage container with the water storage container, and then opening the switch component after assembly; S2. starting the driving device to make the feces in the breeding container enter the feces storage container with water; S3. closing the switch component, dismounting the feces storage container, taking out the collected feces, and repeating S1 to S3 until the collected amount of feces meets the experimental requirements, and analyzing the digestibility of fish feed according to the collected feces.

10. A method of using a fish waste collection device according to claim 9, characterized in that: The fish feed comprises the following raw materials in parts by weight: fish meal 8 parts, meat powder 7 parts, rapeseed meal 14 parts, soybean meal 38 parts, sunflower meal 5 parts, soybean oil 3 parts, flour 20 parts, calcium dihydrogen phosphate 2 parts, vitamin premix 0.5 part, trace element premix 2 parts, lysine 0.3 part and methionine 0.2 part.

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