CN102144588A - Method for artificially propagating odontobutis obscurus - Google Patents
Method for artificially propagating odontobutis obscurus Download PDFInfo
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- CN102144588A CN102144588A CN2011100866481A CN201110086648A CN102144588A CN 102144588 A CN102144588 A CN 102144588A CN 2011100866481 A CN2011100866481 A CN 2011100866481A CN 201110086648 A CN201110086648 A CN 201110086648A CN 102144588 A CN102144588 A CN 102144588A
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- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention provides a method for artificially propagating odontobutis obscurus, which is characterized by comprising the following steps of: firstly, selecting a plurality of pairs of sexually matured male and female odontobutis obscurus and placing into a spawning pond; secondly, placing a plurality of odontobutis obscura ovipositors in the spawning pond, wherein the number of the odontobutis obscura ovipositors is more than of the pairing number of the sexually matured male and female odontobutis obscurus, a wood horizontal trapezoidal cylinder is adopted as a male and female odontobutis obscurus mating place in each ovipositor, and a mesh used for spawning by the odontobutis obscurus is placed on inner side surfaces of two bevel edges of the trapezoidal cylinder; thirdly, controlling the illumination intensity of the environment of the spawning pond to be not more than 50lux, the environmental noise to be not more than 50 decibels and water temperature to be 18-29 DEG C until the female odontobutis obscurus leave the ovipositors, and ending spawning; and fourthly, taking out the mesh spawned with spawns from the ovipositors, laying the mesh on two sides of a rectangular bracket horizontally, placing into a hatching pond, ensuring that the distance between the mesh spawned with the spawns and a water surface is not less than 5cm, introducing oxygen to the hatching water body, and simultaneously controlling the hatching water temperature between 25 DEG C and 30 DEG C, the illumination intensity of the hatching pond to be less than 50lux and the environmental noise to be not more than 50 decibels until an odontobutis obscurus fry is hatched. The method for artificially propagating the odontobutis obscurus is simple and has high seedling rate.
Description
Technical field
The present invention relates to a kind of artificial propagation of fish method, specifically a kind of Odontobutis obscura artificial fecundation method.
Background technology
Odontobutis obscura (Odontobutis obscurus) belongs to Perciformes, Eleotridae, Odontobutis.Be commonly called as: sleeper, husky snakehead, soil is fish, native foolish crust, mole cricket public affairs.English name: Dark sleeper.Body is sturdy, and is big and wealthy, and flat slightly, belly is perfectly round, and the rear portion is flat-sided.Mouth is big, and upper, oblique segmentation reaches oculocentric below.Last lower jaw tool serration.Vomer is anodontia.Eye is little, and is outstanding.Two in dorsal fin, each self-separation.Each fin does not all have hard thorn.Pectoral fin is big, circle; The tail fin trailing edge is round slightly.No side line.Body is pitchy, has yellow brilliance, and belly is yellowish, and there is irregular bulk black speckle on the side, and each fin all has the faint yellow striped alternate with black.
Odontobutis obscura happiness moves in the bottom of stream and the many pasture and water of lake offshore, rubble, stone crack, silt.A little less than the swimming power.Hiding winter and survive the winter under than depths or stone at water layer, is main food with shrimp, small fish.1 age fish promptly reach sexual maturity, be spawning season at the beginning of the 4-6 month, the spawning ground is many in leeward arm of lake.Milter in sunny night or noon earlier in the bank pit hole of depth of water 1-2 rice, broken crock and clam shell Nei Ying cave, send " cluck,coo " cry, lure raun to go into nest.Lay eggs activity generally in the morning during 6-7, carry out in the time of the about 18-25 of water temperature ℃.The ovum proper alignment adheres on clam shell, tile or the stone.Promptly leave away after raun lays eggs, milter is then kept nest and protects ovum, hatches until prelarva.
Odontobutis obscura is distributed widely in waters, east China each province.Its delicious meat, nutritious is the higher aquatic products of a kind of economic worth.
Because the breeding of Odontobutis obscura is had relatively high expectations to water body, reproduction rate under its wild state is not high, add the decline of China's water body quality in recent years, cause the Odontobutis obscura quantity of producing under the wild condition sharply to descend, cause its market price high, institute's quantity of selling is very limited on the market at present, therefore, carry out artificial propagation and breed and have crucial economic worth, and carry out the hatching that the key of propagating artificially is a fry, the key of fry hatching is the collection and the hatching of fish-egg.Because the Odontobutis obscura under wild state hobby is mostly laid eggs under stone or tile, therefore the domestic and international artificial spawning that carries out is the tile of placing some in water body mostly, treat that again tile being put into the hatchery after fish lays eggs hatches, disclose this propagation method as Chinese patent ZL2006100503576, the collection that this tile type is laid eggs, though incubator can be realized fish-egg, because its structure is comparatively simple, otherness is bigger, has had a strong impact on the raising of Odontobutis obscura spawning rate and incubation rate.Therefore, according to the life characteristic of Odontobutis obscura, inventing a kind of new artificial fecundation method, is to enlarge cultured area, makes it benefit popular key.
Summary of the invention
The objective of the invention is spawning rate and the not high problem of incubation rate, invent a kind of Odontobutis obscura artificial fecundation method that can significantly improve spawning rate and incubation rate at existing propagation method existence.
Technical scheme of the present invention is:
A kind of Odontobutis obscura artificial fecundation method is characterized in that it may further comprise the steps:
At first, select the some spawning ponds that are opposite to of sexually matured male and female Odontobutis obscura;
Secondly, incubate at product and to place the Odontobutis obscura oopod of quantity greater than described logarithm in the pond, described oopod adopts wooden horizontally-arranged trapezoidal cylindrical shell as male and female Odontobutis obscura mating place, places to be used for the screen cloth of laying eggs for Odontobutis obscura on two hypotenuse medial surfaces of trapezoidal cylindrical shell;
The 3rd, the illuminance of control spawning pond environment of living in is not more than 50 luxs, and environmental noise is no more than 50 decibels, and the control water temperature is left oopod until female Odontobutis obscura, the end of laying eggs at 18-29 ℃;
The 4th, there is the screen cloth of fish-egg from oopod, to take out product, level is taken to put on the both sides of rectangle support and is placed the hatchery, makes the distance of producing dried up of the screen cloth that fish-egg is arranged all be not less than 5 centimetres, and logical oxygen in the hatching water body makes the oxygen content 〉=5mg/m of water body
3, the water temperature of control hatching simultaneously is between 25-30 ℃, and the illuminance of hatchery is less than 50 luxs, and environmental noise is no more than 50 decibels, hatches up to fry.
Described rectangle support is processed by the hollow pvc pipe that can produce buoyancy, its two long limits be provided with screen cloth on the nylon pin thread or the nylon box that matches of box or pin thread so that have the screen cloth of fish-egg to be horizontally fixed under the rectangle support product, the width of described rectangle support should match with the length of screen cloth; On described rectangle support, also be hung with the sedimentation piece of controlling hoverheight in the water body wherein.
The cross section of described wooden trapezoidal cylindrical shell is an isosceles trapezoid, these isosceles trapezoidal with angle α horizontal plane be the 45-60 degree, this angle is suitable for the spawning habit of Odontobutis obscura.
The quantity that described product is incubated the Odontobutis obscura in the pond is each 8-10 bar of male and female, and the quantity of oopod is 9-11.
Beneficial effect of the present invention:
The present invention has improved spawning rate by building suitable mate and oviposit environment for Odontobutis obscura, and by comparing with the tile type oopod, spawning rate generally improves more than 10%.And oviposition period can be shortened to about 5 days by average about 7 days of past.And experiment showed, that Odontobutis obscura has a kind of natural power of getting close to wooden oopod, and in same water body, to place wooden simultaneously and the tile oopod, Odontobutis obscura is preferentially selected wooden oopod of the present invention.
The present invention has improved the incubation rate of fish-egg by the control of water temperature, illumination, noise, emergence rate on year-on-year basis value added also more than 10%.
The present invention is simple, easily goes, and equipment needed thereby drops into little, and the output height has excellent popularization and is worth.
Description of drawings
Fig. 1 is the structural representation of trapezoidal wooden oopod of the present invention.
Fig. 2 is the structural representation of trapezoidal cylindrical shell of the present invention.
Fig. 3 is the structural representation of the screen cloth of the usefulness of laying eggs of the present invention.
Fig. 4 is the structural representation of hatchery of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Shown in Fig. 1-4.
A kind of Odontobutis obscura artificial fecundation method, it may further comprise the steps:
At first, select the some spawning ponds that are opposite to of sexually matured male and female Odontobutis obscura, it is right that the logarithm of the male and female Odontobutis obscura of placing in each spawning pond is generally 8-10, spawning pond can adopt the structure identical with Fig. 4, lay eggs during concrete enforcement and hatch the pond that to adopt same structure, and not good with indoor pond, in order to guarantee incubation rate, the pond of having produced behind the ovum should carry out using for hatching behind the cleaning-sterilizing again;
Secondly, incubate in the pond at product and to place the Odontobutis obscura oopod of quantity greater than described logarithm, generally speaking the quantity of oopod more preferably greater than one to two of female milter logarithm so that milter has certain leeway of selecting, described oopod adopts wooden horizontally-arranged trapezoidal cylindrical shell as male and female Odontobutis obscura mating place, places to be used for the screen cloth that the confession Odontobutis obscura is laid eggs on two hypotenuse medial surfaces of trapezoidal cylindrical shell; The structure of oopod as Figure 1-3.It mainly is made up of trapezoidal cylindrical shell 1 and screen cloth 2, as shown in Figure 1, the two ends of described cylindrical shell 1 connect, its cross section is trapezium structure, trapezoidal upper bottom surface can be used for placing stone or iron block so that it can fall to the bottom reliably, as shown in Figure 2, two hypotenuse plates 5 that cylindrical shell 1 of the present invention is gone up side plate 3 and following side plate 4 by the last side plate 3 that is parallel to each other, following side plate 4 and connection are formed, its cross section is trapezium structure and two ends connect, the span of the angle α of hypotenuse plate and base plate is between the 45-60 degree, this angle helps raun lays eggs, and the angle of laying eggs with it matches.All can be positioned with screen cloth 2(such as Fig. 3 on the medial surface of one or two hypotenuse plate 5), screen cloth 2 can be by the flexible connection of velcro realization with hypotenuse plate 5, can respectively be fixed with a nylon pin thread or box 6 in the inboard, two ends or the outside of hypotenuse plate 5, respectively be provided with a nylon box or a pin thread 7 that matches with described nylon pin thread or box 6 simultaneously at the two ends of screen cloth 2;
The 3rd, the illuminance of control spawning pond environment of living in is not more than 50 luxs, and environmental noise is no more than 50 decibels, and the control water temperature is left oopod until female Odontobutis obscura, the end of laying eggs at 18-29 ℃;
The 4th, have the screen cloth 2 of fish-egg to take out from oopod product, level is taken to put on the both sides of rectangle support 7 ' and is placed the hatchery, makes the distance of producing 2 dried up of the screen cloths that fish-egg is arranged all be not less than 5 centimetres, in the hatching water body, lead to oxygen, make the oxygen content 〉=5mg/m of water body
3, the water temperature of control hatching simultaneously is between 25-30 ℃, and the illuminance of hatchery is less than 50 luxs, and environmental noise is no more than 50 decibels, hatches up to fry.Described rectangle support 7 ' is processed by the hollow pvc pipe that can produce buoyancy, its two long limits be provided with screen cloth on the nylon pin thread or the nylon box that matches of box or pin thread so that have the screen cloth of fish-egg to be horizontally fixed under the rectangle support product, the width of described rectangle support should match with the length of screen cloth; On described rectangle support, also be hung with the sedimentation piece of controlling hoverheight in the water body wherein.
During concrete enforcement, structure as shown in Figure 4 can be adopted in the hatchery, its main cuboid fiberglass pond body 1 ', water inlet pipe 2 ' and air inlet pipe 3 ' are formed, the water inlet of described water inlet pipe 2 ' links to each other with the water source, the water side of water inlet pipe 2 ' is positioned at pond body 1 ' one end top, on the water side of water inlet pipe 2 ', inlet valve 4 ' is installed, described air inlet pipe 3 ' is installed on one side of pond body 1 ', its inlet end links to each other with the center air pump, on air inlet pipe 3 ', be provided with a plurality of air outlet adapters 5 ', each air outlet adapter 5 ' both can link to each other with one or more aeration heads by gas-distribution pipe, and aeration head is positioned under the water level, and the also available end socket of air outlet adapter 5 ' is sealed; Be provided with discharge outlet 6 ' on the inner bottom surface of pond body 1, pool wall is provided with gap, also can set up the support 7 ' that is used to hang oopod on the pond in case of necessity, in order to control water temperature, also can thermometer that measure water temperature be installed at Chi Tizhong.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1. Odontobutis obscura artificial fecundation method is characterized in that it may further comprise the steps:
At first, select the some spawning ponds that are opposite to of sexually matured male and female Odontobutis obscura;
Secondly, incubate at product and to place the Odontobutis obscura oopod of quantity greater than described logarithm in the pond, described oopod adopts wooden horizontally-arranged trapezoidal cylindrical shell as male and female Odontobutis obscura mating place, places to be used for the screen cloth of laying eggs for Odontobutis obscura on two hypotenuse medial surfaces of trapezoidal cylindrical shell;
The 3rd, the illuminance of control spawning pond environment of living in is not more than 50 luxs, and environmental noise is no more than 50 decibels, and the control water temperature is left oopod until female Odontobutis obscura, the end of laying eggs at 18-29 ℃;
The 4th, there is the screen cloth of fish-egg from oopod, to take out product, level is taken to put on the both sides of rectangle support and is placed the hatchery, makes the distance of producing dried up of the screen cloth that fish-egg is arranged all be not less than 5 centimetres, and logical oxygen in the hatching water body makes the oxygen content 〉=5mg/m of water body
3, the water temperature of control hatching simultaneously is between 25-30 ℃, and the illuminance of hatchery is less than 50 luxs, and environmental noise is no more than 50 decibels, hatches up to fry.
2. Odontobutis obscura artificial fecundation method according to claim 1, it is characterized in that described rectangle support is processed by the hollow pvc pipe that can produce buoyancy, its two long limits be provided with screen cloth on the nylon pin thread or the nylon box that matches of box or pin thread so that have the screen cloth of fish-egg to be horizontally fixed under the rectangle support product, the width of described rectangle support should match with the length of screen cloth; On described rectangle support, also be hung with the sedimentation piece of controlling hoverheight in the water body wherein.
3. Odontobutis obscura artificial fecundation method according to claim 1, the cross section that it is characterized in that described wooden trapezoidal cylindrical shell is an isosceles trapezoid, these isosceles trapezoidal with angle α horizontal plane be the 45-60 degree, this angle is suitable for the spawning habit of Odontobutis obscura.
4. Odontobutis obscura artificial fecundation method according to claim 1 is characterized in that it is each 8-10 bar of male and female that described product is incubated the quantity of the Odontobutis obscura in the pond, and the quantity of oopod is 9-11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100866481A CN102144588B (en) | 2011-04-07 | 2011-04-07 | Method for artificially propagating odontobutis obscurus |
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| CN2011100866481A CN102144588B (en) | 2011-04-07 | 2011-04-07 | Method for artificially propagating odontobutis obscurus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102499147A (en) * | 2011-11-01 | 2012-06-20 | 苏州市水产研究所有限公司 | Odontobutis obscura artificial propagation method |
| CN102726329A (en) * | 2012-06-25 | 2012-10-17 | 句容市句容水库管理所 | Artificial propagation management method for odontobutis obscurus |
| CN102893930A (en) * | 2012-03-22 | 2013-01-30 | 曲宪成 | Large-scale artificial propagation method for odontobutis potamophila |
| CN103651219A (en) * | 2013-12-26 | 2014-03-26 | 南京师范大学 | Cross breeding method for river odontobutis obscurus and marbled sand gobies |
| CN103843709A (en) * | 2014-03-19 | 2014-06-11 | 南京师范大学 | Method for controlling early-bred of odontobutis potamophila |
| CN104026051A (en) * | 2014-06-09 | 2014-09-10 | 盐城市盐都区水产养殖场 | Method for breeding or odontobutis obscurus |
| CN104106485A (en) * | 2014-07-21 | 2014-10-22 | 江苏虎石潭农业发展有限公司 | Triangle spreading type ovipositor for adhesive egg fish |
| CN105340803A (en) * | 2015-11-25 | 2016-02-24 | 江苏帅丰特种水产苗种科技有限公司 | Artificial cross-breeding method for Odontobutis obscura and Oxyeleotris marmorata |
| CN106818569A (en) * | 2017-02-15 | 2017-06-13 | 云南茂湾水产养殖有限责任公司 | Removable anti-unrestrained fish spawning bed and its application process |
| CN107624685A (en) * | 2017-09-30 | 2018-01-26 | 南京市水产科学研究所 | A kind of half-manual breeding method of Odontobulis mpotamophila embryonated egg |
| CN107996475A (en) * | 2018-01-09 | 2018-05-08 | 钱光芸 | Odontobutis obscura concentrates the method for taking ovum |
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Patent Citations (3)
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| CN1846480A (en) * | 2006-04-14 | 2006-10-18 | 浙江省淡水水产研究所 | Artificial breeding method and incubator for shatang carp |
| CN201135078Y (en) * | 2007-12-29 | 2008-10-22 | 华中农业大学 | A water saving and mould proof hatching device suitable for yellow catfish fertilized ovum |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102499147A (en) * | 2011-11-01 | 2012-06-20 | 苏州市水产研究所有限公司 | Odontobutis obscura artificial propagation method |
| CN102893930A (en) * | 2012-03-22 | 2013-01-30 | 曲宪成 | Large-scale artificial propagation method for odontobutis potamophila |
| CN102726329A (en) * | 2012-06-25 | 2012-10-17 | 句容市句容水库管理所 | Artificial propagation management method for odontobutis obscurus |
| CN102726329B (en) * | 2012-06-25 | 2014-01-29 | 句容市句容水库管理所 | Artificial propagation management method for odontobutis obscurus |
| CN103651219A (en) * | 2013-12-26 | 2014-03-26 | 南京师范大学 | Cross breeding method for river odontobutis obscurus and marbled sand gobies |
| CN103843709B (en) * | 2014-03-19 | 2015-12-30 | 南京师范大学 | A kind ofly control the early numerous method of Odontobulis mpotamophila |
| CN103843709A (en) * | 2014-03-19 | 2014-06-11 | 南京师范大学 | Method for controlling early-bred of odontobutis potamophila |
| CN104026051A (en) * | 2014-06-09 | 2014-09-10 | 盐城市盐都区水产养殖场 | Method for breeding or odontobutis obscurus |
| CN104026051B (en) * | 2014-06-09 | 2016-04-20 | 盐城市盐都区水产养殖场 | A kind of Odontobutis obscura mating system |
| CN104106485A (en) * | 2014-07-21 | 2014-10-22 | 江苏虎石潭农业发展有限公司 | Triangle spreading type ovipositor for adhesive egg fish |
| CN105340803A (en) * | 2015-11-25 | 2016-02-24 | 江苏帅丰特种水产苗种科技有限公司 | Artificial cross-breeding method for Odontobutis obscura and Oxyeleotris marmorata |
| CN106818569A (en) * | 2017-02-15 | 2017-06-13 | 云南茂湾水产养殖有限责任公司 | Removable anti-unrestrained fish spawning bed and its application process |
| CN107624685A (en) * | 2017-09-30 | 2018-01-26 | 南京市水产科学研究所 | A kind of half-manual breeding method of Odontobulis mpotamophila embryonated egg |
| CN107996475A (en) * | 2018-01-09 | 2018-05-08 | 钱光芸 | Odontobutis obscura concentrates the method for taking ovum |
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| CN102144588B (en) | 2013-02-27 |
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