CN110140678B - Method for breeding finless eels in greenhouse - Google Patents
Method for breeding finless eels in greenhouse Download PDFInfo
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- CN110140678B CN110140678B CN201910603774.6A CN201910603774A CN110140678B CN 110140678 B CN110140678 B CN 110140678B CN 201910603774 A CN201910603774 A CN 201910603774A CN 110140678 B CN110140678 B CN 110140678B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to a method for breeding finless eels in a greenhouse, which specifically comprises the following steps: s1, selecting a place; s2, building a cultivation greenhouse; s3, building a culture pond; s4, cultivation management; s5, fishing the finless eels. The method for culturing the finless eels in the greenhouse solves the problems that the finless eels are not easy to catch and do not have habitation areas, the designed habitation blocks are convenient to move, 3-4 finless eels with different sizes can be cultured in one culture pond, the damage among the finless eels is avoided, and the economic benefit of finless eel culture is improved.
Description
Technical Field
The invention relates to the field of eel culture, in particular to a method for culturing eels in a greenhouse.
Background
The finless eel is very high in nutritive value, contains rich protein, lecithin and various vitamins, is a very good food, but the yield of the wild finless eel is limited, the quality of the wild finless eel is difficult to guarantee, and if water is polluted by heavy metals and the like, the eating of the finless eel can cause the accumulation of pollutants in human bodies.
The artificial breeding of the finless eels generally adopts mud pond culture or net cage culture, but has the following problems:
1. the mud-pond cultivated finless eels are not easy to catch;
2. the rice field eels are cultured in the net cage, the rice field eels do not inhabit, part of the rice field eels use water plants as inhabit, but the water plants are inconvenient to move;
3. one breeding pond can only breed finless eels with one size.
Therefore, the invention aims to develop a method for culturing the finless eels in the greenhouse, the culturing method solves the problems that the finless eels are not easy to catch and do not have habitats, the designed habitats are convenient to move, and 3-4 finless eels with different sizes can be cultured in one culturing pond.
Disclosure of Invention
The invention provides a method for breeding finless eels in a greenhouse, which comprises the following steps:
and S1, selecting places, wherein the places are selected from flat areas with sufficient water sources, cleanness and no pollution.
S2, building a greenhouse, wherein the width of the greenhouse is 3-4m, the height of the greenhouse is 2-3m, and the length of the greenhouse is determined by the culture scale without limitation; the greenhouse film is a PO film, and the frame in the greenhouse is a steel bar frame.
S3, constructing a culture pond, wherein the culture pond is cuboid, 3-4m in length, 1.5-2m in width and 1.2-1.5m in height, the upper ends of the left side and the right side of the culture pond are equidistantly provided with semicircular concave structures, and the distance between the semicircular concave structures is 60-100 cm.
The rotary wooden frame is arranged at the upper end of the culture pond and transversely placed on the culture pond, the rotary wooden frame is placed in a semicircular concave structure of the culture pond, a disc is arranged at the right end of the rotary wooden frame, the plane where the disc is located on the end face of the right end of the rotary wooden frame, the center of the disc is overlapped with the center of the end face of the right end of the rotary wooden frame, 3-5 circular wooden sticks are installed at the edge of the disc, the length of each circular wooden stick is 15-20cm, the diameter of each circular wooden stick is 4-6cm, the extension line of each circular wooden stick passes through the center of the disc, and the straight line where the wooden stick is located is overlapped with the plane where the disc is located.
3-5 inhabitation blocks are hung on the rotary wooden frame at equal distance, four corners of the upper end of each inhabitation block are tied by four long thin ropes, the other ends of the four thin ropes are tied at one end of a thick rope, and the other ends of the thick ropes are fixed on the rotary wooden frame.
The left side and the right side of the culture pond are provided with round iron rods, the straight line where the round iron rods are located is parallel to the length direction of the culture pond, the distance from the round iron rods to the ground is 1.6-1.8m, the round iron rods are fixed on the two vertical iron rods, metal rings are sleeved on the round iron rods, and the metal rings can move around the round iron rods.
3-4 kinds of culture nets are arranged in the culture pond, the upper edge and the lower edge of the front end and the lower end of each culture net are fixed on reinforcing steel bars with equal length, and the two ends of the reinforcing steel bars positioned on the upper edge are tied on the metal ring through ropes.
S4, cultivation management: the finless eels with different sizes are separately cultured in different culture nets; feeding the feed once every 1-2 days; changing water every 2-4 days; controlling the water temperature of the culture pond to be 22-27 ℃; aquatic plants are placed in the culture net.
S5, fishing the finless eels: the round wood stick is rotated to enable the rotary wood frame to rotate, the thick rope is wound by the rotary wood frame, the inhabitation block rises to leave the water surface, the finless eel leaves the inhabitation block and falls into the breeding net, and the rotary wood frame and the inhabitation block are taken away from the breeding pond.
The metal ring tied to the breeding net is moved, the metal ring drives the rope to pull the breeding net, the distance between the front side and the rear side of the breeding net is reduced, the rice field eels in the breeding net are concentrated, and the rice field eels in the breeding net are caught by the net bag.
Further, in the step S3, the inhabitation block is cuboid, a circular channel is arranged on the inhabitation block, the diameter of the circular channel is 3-5cm, the hollow rate of the inhabitation block is 40-60%, and the inhabitation block is made of EVA.
Furthermore, 3-4 specifications are simultaneously used for the breeding nets, the mesh openings of the breeding nets are 1mm, 3mm, 8mm and 18mm, the breeding net with the diameter of 18mm is used for the finless eels with the diameter of more than 20mm, the breeding net with the diameter of 8mm is used for the finless eels with the diameter of 10-20mm, the breeding net with the diameter of 3mm is used for the finless eels with the diameter of 5-10mm, and the breeding net with the diameter of 1mm is used for the finless eels with the diameter of less than 5 mm.
Further, in the step S4, the feed is a mixed pellet feed, and the feed comprises the following raw materials: 2-3 parts of tenebrio molitor, 3-4 parts of wheat bran, 2-3 parts of mussel meat, 2-3 parts of silkworm chrysalis and 1-2 parts of pig blood.
Further, in step S4, the water changing method includes: the inhabitation blocks are lifted to leave the water surface by rotating the wooden frame, the inhabitation blocks are washed by clear water firstly, then water is discharged while water is introduced, and the water body is stirred, so that food residues and excrement at the bottom of the culture pond flow out of the culture pond along with water flow, the water inflow is 1/3-1/2 of the original water amount of the culture pond, and the difference between the water inflow temperature and the original water temperature of the culture pond is less than 4 ℃.
Further, in step S4, the aquatic plant is at least one of water lily, water hyacinth and duckweed.
Wherein, this breed mode's characteristics lie in: the rice field eels with the diameter of more than 20mm use the breeding net with the diameter of 18mm, the rice field eels with the diameter of 10-20mm use the breeding net with the diameter of 8mm, the rice field eels with the diameter of 5-10mm use the breeding net with the diameter of 3mm, and the rice field eels with the diameter of less than 5mm use the breeding net with the diameter of 1mm, so that the function of separately breeding the rice field eels with different individual sizes in the same breeding pond is realized.
The upper and lower edges of the two end faces of the breeding net are fixed on the steel bars with equal length, the two ends of the steel bars are connected to the metal ring through the ropes, when the metal ring is moved, the ropes on the metal ring drive the breeding net to move, the distance between the two end faces of the breeding net is adjustable, and therefore the size of the breeding net can be controlled.
The improved rice field eel breeding pond is characterized in that inhabitation blocks are arranged in the breeding pond, each inhabitation block is provided with a circular channel, the diameter of each circular channel is 3-5cm, rice field eels can freely enter and exit the inhabitation block, the inhabitation blocks provide a safe inhabitation environment for the rice field eels, four corners of the upper ends of the inhabitation blocks are fixed on four thin lines, one ends of the thin lines are connected with the other ends of the thin lines, the other ends of the thick lines are fixed on a rotary wooden frame, the inhabitation blocks can be wound by the rotary wooden frame in a rotating mode, ascending and descending of the inhabitation blocks are achieved, the depth of the inhabitation blocks in water is adjustable, and the ascending and descending functions of the inhabitation blocks are also beneficial to the implementation of other operations in the breeding process.
Advantageous effects
1. The breeding method realizes the function of separately breeding the rice field eels with different individual sizes in the same breeding pond, the rice field eels have good habitation in the breeding pond and can grow at ease, and when the rice field eels are caught, the rice field eels are easily concentrated and are convenient to catch.
2. Due to the arrangement of the breeding nets with various specifications, finless eels with different sizes can be bred in one breeding pond, the situation that the large finless eels eat small finless eels is avoided, and the safety of the finless eels is guaranteed.
3. The arrangement of the inhabitation block provides a safe inhabitation environment for the finless eels, meets the natural habit of punching the holes of the finless eels, and is beneficial to the growth of the finless eels.
4. Due to the movable design of the two end faces of the breeding net, the volume of the breeding net can be changed as required, and rice field eels can be conveniently concentrated and caught during catching.
Drawings
FIG. 1 is a flow chart of the cultivation of the present invention;
FIG. 2 is a schematic view of a culture pond of the present invention;
FIG. 3 is a schematic view of a liftable habitat block of the invention;
FIG. 4 is a schematic view of a mobile farm net of the present invention;
Detailed Description
In the following, a preferred embodiment of the present invention is further described in detail, and a suitable cultivation method is designed according to conditions such as nutrition, temperature and the like required by the growth of finless eels, and the specific operation steps are as follows:
selecting a breeding place: selecting a flat area with sufficient water source, cleanness and no pollution, such as the vicinity of rivers, ponds and the like.
Building a cultivation greenhouse: the width of the greenhouse is 3.5m, the height of the greenhouse is 2.5m, and the length of the greenhouse is determined by the culture scale without limitation; the greenhouse film is a PO film, and a frame in the greenhouse is a steel bar frame; the size of the greenhouse can be properly adjusted according to the number of the cultured finless eels and the area of a culture place.
Building a culture pond: the breeding pond is cuboid in shape, 3m in length, 2m in width and 1.4m in height, semicircular concave structures are arranged at the upper ends of the left side and the right side of the breeding pond at equal intervals, and the distance between the semicircular concave structures is 80 cm.
Building a rotary wooden frame on the culture pond: rotatory wooden frame is violently put on breeding the pond, and rotatory wooden frame is placed in the concave structure of semicircle of breeding the pond, the right-hand member of rotatory wooden frame is equipped with the disc, disc place plane is in the terminal surface of rotatory wooden frame right-hand member, and the terminal surface center coincidence of disc center and rotatory wooden frame right-hand member, 3 circular wooden sticks are installed to the edge of disc, the length of circular wooden stick is 20cm, the diameter is 5cm, and the disc center is crossed to the extension line of circular wooden stick, the coincidence of wooden stick place sharp and disc place plane.
Suspending the inhabitation block below the rotary wooden frame: the rotary wooden frame is equidistantly provided with 4 inhabitation blocks, four corners of the upper end of each inhabitation block are tied by four equal-length thin ropes, the other ends of the four thin ropes are tied at one end of a thick rope, and the other end of the thick rope is fixed on the rotary wooden frame.
Round iron poles are built on the left side and the right side of the culture pond: the left side and the right side of the culture pond are provided with horizontal round iron rods, the straight line where the round iron rods are located is parallel to the length direction of the culture pond, the distance from the round iron rods to the ground is 1.6m, the round iron rods are fixed on the two vertical iron rods, and enough metal rings are sleeved on the round iron rods.
Setting of a breeding net: the breeding pond is internally provided with breeding nets with 4 specifications, the upper edge and the lower edge of the front end and the rear end of each breeding net are fixed on reinforcing steel bars with equal length, and the two ends of each reinforcing steel bar positioned on the upper edge are tied on the metal ring through ropes.
Cultivation management: the finless eels with different sizes are separately cultured in different culture nets, the diameter of the finless eels in the 18mm culture net is more than 20mm, the diameter of the finless eels in the 8mm culture net is 10-20mm, the diameter of the finless eels in the 3mm culture net is 5-10mm, and the diameter of the finless eels in the 1mm culture net is less than 5 mm.
The feed is fed every 2 days, the feed is mixed pellet feed, and the feed comprises the following raw materials: 2 parts of tenebrio molitor, 3 parts of wheat bran, 2 parts of mussel meat, 2 parts of silkworm chrysalis and 1 part of pig blood.
Changing water once every 3 days, lifting the inhabitation blocks away from the water surface by rotating the wooden frame, washing the inhabitation blocks with clear water, then feeding water while discharging water, stirring the water body, enabling food residues and excrement at the bottom of the culture pond to flow out of the culture pond along with water flow, wherein the water inflow is 1/3-1/2 of the original water amount of the culture pond, the difference between the water inflow temperature and the original water temperature of the culture pond is less than 4 ℃, and the water temperature of the culture pond is controlled to be 22-27 ℃.
Aquatic plants are placed in the culture net, and the aquatic plants are water lily and duckweed.
Preparing before fishing: the round wood stick is rotated to enable the rotary wood frame to rotate, the thick rope is wound by the rotary wood frame, the inhabitation block rises to leave the water surface, the finless eel leaves the inhabitation block and falls into the breeding net, and the rotary wood frame and the inhabitation block are taken away from the breeding pond.
Fishing the finless eels: the metal ring tied to the breeding net is moved, the metal ring drives the rope to pull the breeding net, the distance between the front side and the rear side of the breeding net is reduced, the rice field eels in the breeding net are concentrated, and the rice field eels in the breeding net are caught by the net bag.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A method for cultivating finless eels in a greenhouse is characterized in that: the method comprises the following steps:
s1, selecting places, wherein the places are selected from flat areas with sufficient water sources, cleanness and no pollution;
s2, building a greenhouse, wherein the width of the greenhouse is 3-4m, the height of the greenhouse is 2-3m, and the length of the greenhouse is determined by the culture scale without limitation; the greenhouse film is a PO film, and a frame in the greenhouse is a steel bar frame;
s3, constructing a culture pond, wherein the culture pond (1) is cuboid, 3-4m in length, 1.5-2m in width and 1.2-1.5m in height, semicircular concave structures are arranged at the upper ends of the left side and the right side of the culture pond (1) at equal intervals, and the distance between the semicircular concave structures is 60-100 cm;
the rotary wooden frame (2) is arranged at the upper end of the culture pond (1), the rotary wooden frame (2) is transversely placed on the culture pond (1), the rotary wooden frame (2) is placed in a semicircular concave structure of the culture pond (1), a disc (3) is arranged at the right end of the rotary wooden frame (2), the plane where the disc (3) is located on the end face of the right end of the rotary wooden frame (2), the center of the disc (3) is overlapped with the center of the end face of the right end of the rotary wooden frame (2), 3-5 circular wooden sticks (4) are installed at the edge of the disc (3), the length of each circular wooden stick (4) is 15-20cm, the diameter of each circular wooden stick is 4-6cm, the extension line of each circular wooden stick (4) passes through the center of the disc (3), and the straight line where the circular wooden stick (4) is located is overlapped with the plane where the disc (3) is located;
3-5 inhabitation blocks (5) are hung on the rotary wooden frame (2) at equal distance, four corners of the upper end of each inhabitation block (5) are tied by four thin ropes with equal length, the other ends of the four thin ropes are tied at one end of a thick rope, and the other end of the thick rope is fixed on the rotary wooden frame (2);
round iron rods (6) are arranged on the left side and the right side of the culture pond (1), the straight line where the round iron rods (6) are located is parallel to the length direction of the culture pond (1), the distance between each round iron rod (6) and the ground is 1.6-1.8m, the round iron rods (6) are fixed on two vertical iron rods (7), metal rings (8) are sleeved on the round iron rods (6), and the metal rings (8) move along the round iron rods (6);
3-4 kinds of culture nets (9) are arranged in the culture pond (1), the upper and lower edges of the front and rear ends of the culture nets (9) are fixed on reinforcing steel bars (10) with equal length, and the two ends of the reinforcing steel bars (10) positioned on the upper edge are tied on the metal ring (8) by ropes;
s4, cultivation management: the finless eels with different sizes are separately cultured in different culture nets (9); feeding the feed once every 1-2 days; changing water every 2-4 days; the water temperature of the culture pond (1) is controlled to be 22-27 ℃; aquatic plants are placed in the culture net (9);
s5, fishing the finless eels: rotating the round wooden stick (4) to enable the rotating wooden frame (2) to rotate, winding the thick rope by the rotating wooden frame (2), enabling the inhabitation block (5) to rise and leave the water surface, enabling the finless eels to leave the inhabitation block (5) and fall into the breeding net, and taking the rotating wooden frame (2) and the inhabitation block (5) away from the breeding pond; the metal ring (8) tied to the breeding net is moved, the metal ring (8) drives the rope to pull the breeding net (9), the distance between the front side and the rear side of the breeding net (9) is reduced, the rice field eels in the breeding net (9) are concentrated, and the rice field eels in the breeding net (9) are caught by the net bag.
2. The method of claim 1, wherein in step S3, the inhabitation block (5) is rectangular, the inhabitation block (5) has circular channels with a diameter of 3-5cm, the inhabitation block (5) has a hollow rate of 40-60%, and the inhabitation block (5) is made of EVA.
3. The method for greenhouse cultivation of finless eels as claimed in claim 1, wherein in step S4, 3-4 specifications are used for the cultivation net simultaneously, the mesh openings of the cultivation net are 1mm, 3mm, 8mm and 18mm, the finless eels with the diameter of more than 20mm use the cultivation net with the diameter of 18mm, the finless eels with the diameter of 10-20mm use the cultivation net with the diameter of 8mm, the finless eels with the diameter of 5-10mm use the cultivation net with the diameter of 3mm, and the finless eels with the diameter of 5mm use the cultivation net with the diameter of 1 mm.
4. The method for greenhouse cultivation of finless eels according to claim 1, wherein the feed is a mixed pellet feed, and the feed comprises the following raw materials: 2-3 parts of tenebrio molitor, 3-4 parts of wheat bran, 2-3 parts of mussel meat, 2-3 parts of silkworm chrysalis and 1-2 parts of pig blood.
5. The method for greenhouse cultivation of finless eels as claimed in claim 1, wherein in step S4, the water changing method comprises the following steps: the dwelling block (5) is lifted to leave the water surface by rotating the wooden frame (2), the dwelling block (5) is washed by clear water firstly, then water is discharged while water is fed, water is stirred, food residues and excrement at the bottom of the culture pond flow out of the culture pond along with water flow, the water inlet amount is 1/3-1/2 of the original water amount of the culture pond, and the difference between the water inlet temperature and the original water temperature of the culture pond is less than 4 ℃.
6. The method for greenhouse cultivation of finless eels as claimed in claim 1, wherein in step S4, the aquatic plant is at least one of water lily, water hyacinth and duckweed.
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| US5213058A (en) * | 1990-12-24 | 1993-05-25 | Parker Robert S | Recoverable aquaculture habitat utilizing pneumatic tire casings |
| CN104106483A (en) * | 2014-07-13 | 2014-10-22 | 长江大学 | Method for high-density net cage monopterus albus breeding in vinyl house |
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