CN201919488U - Artificial reproduction device for pikeperch - Google Patents
Artificial reproduction device for pikeperch Download PDFInfo
- Publication number
- CN201919488U CN201919488U CN2011200588477U CN201120058847U CN201919488U CN 201919488 U CN201919488 U CN 201919488U CN 2011200588477 U CN2011200588477 U CN 2011200588477U CN 201120058847 U CN201120058847 U CN 201120058847U CN 201919488 U CN201919488 U CN 201919488U
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- CN
- China
- Prior art keywords
- milter
- zander
- artificial propagation
- things concealed
- oviposition substrate
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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
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- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses an artificial reproduction device for the pikeperch. The device comprises a support frame and a concealing object for milter; etamine is arranged in the support frame to form a spawning substrate; the concealing object for milter is arranged above the spawning substrate, and the bottom of the concealing object for milter is 30cm to 80cm away from the spawning substrate; and the spawning substrate has 40 to 100 meshes. By adopting the artificial reproduction device for the pikeperch, the spawning areas for the pikeperch are relatively fixed, and the distribution of oosperm is relatively uniform, therefore the efficiency of hatching out fish fries is improved.
Description
Technical field
The utility model relates to a kind of artificial propagation device, is specifically related to a kind of zander artificial propagation device, belongs to artificial propagation techniques.
Background technology
Zander (Lucioperca lucioperca) belongs to Perciformes (Pericformes), Percidae (Percidae), Lucioperca (Lucioperca).The zander natural distribution only is distributed in the Yilihe River, Xinjiang water system and Eerqisihe River water system in river, the lake of the Saltwater Sea, Black Sea, the Caspian Sea and the Baltic Sea water system in Europe in China.Zander is one of important economic fish of Perciformes.This fish thermophilic wide (0 ℃ ~ 33 ℃), salt tolerant alkali are all can live well in 11 ‰ waters from fresh water to the salinity.The zander growth is fast, fine and tender taste, and thorn is few between flesh, processes easy, and nutritive value is high, and its protein content surpasses 21.03%, and is more taller than mandarin fish (17.56%), 5 kinds cause bright amino acid content is 9.31%, be higher than trout (9.11%), so its eating effect also is better than mandarin fish.
In recent years, Chinese scholars has also been carried out certain research to the reproductive biology of zander, and the artificial propagation techniques of zander has also had breakthrough.Because during the pairing of zander male and female, lay eggs at water-bed layer, ovum is a viscosity, milter has the habit of guarding fertilized egg, therefore when carrying out the zander artificial propagation, both at home and abroad artificial propagation devices that adopt are about to fortune windmillpalm sheath-fibre and are fixed on the bamboo bar more, be sunken to the bottom, as the oviposition substrate (this matrix often is called as " fish nest " in the artificial propagation of fish technology) of zander.
Yet, find that in actual applications above-mentioned artificial propagation device exists following weak point: (1) is because the oestrusing, lay eggs and the hand inspection activities such as situation of laying eggs of female milter, situations such as fortune windmillpalm sheath-fibre easily reels off raw silk from cocoons, comes off, and be sunken in the water body, and, when collecting the zander fry, palm silk and fry are not easily separated, have had a strong impact on emerge efficient and fry transportation survival rate; (2) because the oviposition substrate that fortune windmillpalm sheath-fibre is made is difficult to accomplish the close ovum that do not leak, the partial fertilization ovum can directly be fallen in the substrate, causes the waste of fertilized egg; (3) because the density of fortune windmillpalm sheath-fibre is bigger than water, thereby it is actually and is suspended from below the fixture (as the bamboo bar) in water body, and zander lays eggs on oviposition substrate, therefore, fertilized egg on above-mentioned fish nest, distributes be difficult for even; (4) above-mentioned oviposition substrate does not provide the hiding place that can guard fish-egg to milter, therefore, lay eggs the position sometimes at the center of fish nest with exterior domain, perhaps raun directly produces ovum at the bottom of the pond, has influenced hatching.
Summary of the invention
The utility model purpose provides a kind of zander artificial propagation device, to improve spawning rate, the fertilized egg distribution consistency degree of zander, improves the efficient of emerging of collecting fry.
For achieving the above object, the technical solution adopted in the utility model is: a kind of zander artificial propagation device, comprise bracing frame and milter things concealed, and be provided with bolting silk in the support frame as described above, form oviposition substrate; Described milter things concealed is located at the top of oviposition substrate, and the bottom of milter things concealed and the distance of oviposition substrate are 30 ~ 80 cm; The order number of described bolting silk is 40 ~ 100 orders.
Above, support frame as described above is to be used for installing bolting silk to form oviposition substrate; Described milter things concealed is that the fertilized egg habit of guarding according to milter is provided with, thereby realizes determining and the raun location of laying eggs of milter position.The distance of described milter things concealed and oviposition substrate is meant the distance of the bottom of milter things concealed to oviposition substrate.
Further technical scheme, described milter things concealed be spherical, be located at oviposition substrate directly over, the spheroid bottom of milter things concealed and the distance of oviposition substrate are 30 ~ 40 cm.For example, can adopt waste and old net sheet to make the spherical milter things concealed that diameter is 20cm.
Further technical scheme, support frame as described above are circular, circumferentially are evenly equipped with at least 3 connecting lines on the bracing frame, and connecting line combines the suspension line that constitutes zander artificial propagation device.
Further technical scheme, the diameter of support frame as described above is 80 ~ 120 cm.
In the technique scheme, described milter things concealed hangs on the described suspension line.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, the utility model design has obtained a kind of new zander artificial propagation device, is easy to make the zone of laying eggs of zander comparatively fixing, and fertilized egg distributes comparatively even, thereby has improved the efficient of emerging of fry.
2, the utility model equipment for breeding is used in evidence, and incubation rate can bring up to 87.5% by existing 62.3%, thereby has active operation significance.
3, the fertilized egg of using equipment for breeding of the present utility model to obtain is cleaned very much, collects easily, catches out after fry hatches, and transportation survival rate is brought up to more than 95% by existing 76%.
4, the utility model is simple in structure, is convenient to preparation, is suitable for applying.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the bracing frame among the utility model embodiment one and the structural representation of bolting silk.
Wherein: 1, bracing frame; 2, milter things concealed; 3, oviposition substrate; 4, connecting line.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one
Shown in Fig. 1 ~ 2, a kind of zander artificial propagation device comprises bracing frame 1 and milter things concealed 2, is provided with bolting silk in the support frame as described above, forms oviposition substrate 3; Described milter things concealed is located at the top of oviposition substrate;
It is 1 meter annulus that bracing frame can be made diameter with the reinforcing bar of 5 mm, is seamed into a plane with 40 mesh sieve thin,tough silk then, forms oviposition substrate 3, gets three formal wires, and one of line is in relation on the annulus, and the other end merges the suspension line of knotting back as oviposition substrate; Hang the spherical milter things concealed that the diameter of being made by waste and old net sheet is 20 cm at suspension line tieing place, the spacing of this things concealed and bolting silk must remain on more than 30 ~ 40 cm.
Spawning pond: diameter is the cement pit of 3 m, and 1 in vertical type drainpipe is established at the center, pond, and it is individual that pool side is established water inlet pipe, and water level is controlled at 90 cm, and each adopts 3 of oxygen gas heads of ovum pond laying increasing.
The parent population pairing: behind artificial induced spawning, the male and female parent population becomes 1 group by the 1:1 proportional paired, and each spawning pond is put into female milter each 3 tails, i.e. 3 groups of parent populations.
Oviposition substrate is made and is thrown in: bracing frame and oviposition substrate are hung in the spawning pond 5 cm at the bottom of the dried up mud sump; Each 1 of every tail milter input oviposition substrate and things concealed.
Inspection lay eggs situation and hatching: after during the next morning 10:00, every 2 hours oviposition substrate is mentioned, checked the situation of laying eggs, milter often was hidden in and guarded fertilized egg below the things concealed this moment, and aggressiveness is arranged.After treating that three groups of fishes all lay eggs, can untie the milter things concealed, and slowly mention oviposition substrate, oviposition substrate is moved to the hatchery; Or directly catch out parent population, oviposition substrate is hung on continue hatching in original spawning pond.
Claims (5)
1. a zander artificial propagation device is characterized in that: comprise bracing frame (1) and milter things concealed (2), be provided with bolting silk in the support frame as described above, form oviposition substrate (3); Described milter things concealed is located at the top of oviposition substrate, and the bottom of milter things concealed and the distance of oviposition substrate are 30 ~ 80 cm; The order number of described bolting silk is 40 ~ 100 orders.
2. zander artificial propagation device according to claim 1 is characterized in that: described milter things concealed is for spherical, be located at oviposition substrate directly over, the spheroid bottom of milter things concealed is 30 ~ 40 cm with the distance of oviposition substrate.
3. zander artificial propagation device according to claim 1 is characterized in that: support frame as described above circumferentially is evenly equipped with at least 3 connecting lines (4) for circular on the bracing frame, and connecting line combines the suspension line that constitutes zander artificial propagation device.
4. zander artificial propagation device according to claim 3 is characterized in that: the diameter of support frame as described above is 80 ~ 120 cm.
5. zander artificial propagation device according to claim 3 is characterized in that: described milter things concealed hangs on the described suspension line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200588477U CN201919488U (en) | 2011-03-08 | 2011-03-08 | Artificial reproduction device for pikeperch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200588477U CN201919488U (en) | 2011-03-08 | 2011-03-08 | Artificial reproduction device for pikeperch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201919488U true CN201919488U (en) | 2011-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200588477U Expired - Fee Related CN201919488U (en) | 2011-03-08 | 2011-03-08 | Artificial reproduction device for pikeperch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201919488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105052783A (en) * | 2015-07-15 | 2015-11-18 | 新疆维吾尔自治区水产科学研究所 | Method for improving survival rate of zander fertilized eggs |
-
2011
- 2011-03-08 CN CN2011200588477U patent/CN201919488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105052783A (en) * | 2015-07-15 | 2015-11-18 | 新疆维吾尔自治区水产科学研究所 | Method for improving survival rate of zander fertilized eggs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20190308 |