CN103202249B - Drop cultivating device and method of pomfret larvae - Google Patents
Drop cultivating device and method of pomfret larvae Download PDFInfo
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- CN103202249B CN103202249B CN201310081769.6A CN201310081769A CN103202249B CN 103202249 B CN103202249 B CN 103202249B CN 201310081769 A CN201310081769 A CN 201310081769A CN 103202249 B CN103202249 B CN 103202249B
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- wheel animalcule
- bucket
- throwing
- nursery pond
- dripped
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- 241000630524 Taractes rubescens Species 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title abstract description 11
- 241000700141 Rotifera Species 0.000 claims abstract description 66
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000003203 everyday effect Effects 0.000 claims abstract description 4
- 238000009395 breeding Methods 0.000 claims description 21
- 230000001488 breeding effect Effects 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 3
- 230000004083 survival effect Effects 0.000 abstract description 7
- 230000000384 rearing effect Effects 0.000 description 5
- 241000251468 Actinopterygii Species 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 206010022998 Irritability Diseases 0.000 description 3
- 230000001418 larval effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000801108 Ephippus orbis Species 0.000 description 1
- 241001214258 Pampus argenteus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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 a drop cultivating device and a method of pomfret larvae. The device comprises a nursery pond and a rotifer cultivating barrel, wherein the rotifer cultivating barrel is placed on one side of the nursery pond. A rotifer outlet hole with a valve is arranged on the lower end of the rotifer cultivating barrel, the rotifer outlet hole is connected with a circle of circular pipe which is located in the inner side above the nursery pond, a plurality of air holes are formed on the lower side of the circular pipe, and the air holes are connected with air pipes which droop down into the nursery pond through an air valve. According to the cultivating device, the method comprises of using chlorella to perform enhanced cultivation on rotifer; opening the air valve on the air pipe regularly every day; then opening the valve on the rotifer outlet hole, the dropping speed of rotifer is controlled at the degree that the dropping is at a constant speed but water flow is not formed, and closing the valve on the rotifer outlet hole after fixed time. According to the invention, the cultivating survival rate of larvae can be increased.
Description
Technical field
The present invention relates to fish offspring seed cultivation method, particularly relate to the young postlarva of a kind of silvery pomfret and drip breeding arrangement and the method for throwing.
Background technology
Silvery pomfret (Pampus argenteus) is commonly called as orbfish, is one of main marine products economic fish of China coast, and it is nutritious, delicious in taste, has very high market value.But due to continuous deterioration and the overfishing etc. of seawater environment, there is the sign that significantly fails in wild silvery pomfret resource.Along with the continuous expansion of the market demand, only depend on and fish for wild silvery pomfret resource and can not meet the current market demand far away.Since the 1980s, domestic researcher has just started the research work to silvery pomfret reproductive biology successively.But little Yi comes off due to silvery pomfret squama, and coerced by irritability and dead, operation easier is larger.In the last few years, along with the continuous progress of investigative technique means, although scientific research personnel has captured the many bottleneck difficult problems in silvery pomfret artificial breeding and breeding process, the propagation in scale of unrealized silvery pomfret still so far.One of reason is during seed rearing to be that survival rate is on the low side during larval rearing.
In silvery pomfret larval rearing process, seed is coerced by irritability very easily and death occurs.Wherein the daily operation of throwing something and feeding is also one of key factor affecting silvery pomfret larval rearing survival rate.Under normal circumstances, carrying out in fish seed rearing process, the daily operation of throwing something and feeding of the living baits such as wheel animalcule is among the disposable seedling pond of throwing something and feeding.Thisly conventionally can cause following several adverse consequences, the one, bait is easily excessive causes waste; The 2nd, living bait is serious at long rear nutrition leak of the time of Miao Chizhong, after being ingested, easily causes seed oligotrophy; The 3rd, easily cause the accumulation of the dead bait in bottom, seedling pond, thereby destroy the condition of water quality in seedling pond, finally affect the survival rate of seed.Therefore, how carrying out effective bait feeding operation is a technical barrier in the research of silvery pomfret artificial breeding.
Summary of the invention
Technical problem to be solved by this invention is to provide the young postlarva of a kind of silvery pomfret and drips throwing breeding arrangement and method, reduces the stress reaction of young postlarva, ensures the nutritive value of the living bait of taking in and stablizing of seedling pond water quality, improves the cultivating survival rate of young postlarva.
The technical solution adopted for the present invention to solve the technical problems is: provide the young postlarva of a kind of silvery pomfret to drip throwing breeding arrangement, comprise nursery pond and wheel animalcule cultivation bucket, described wheel animalcule is cultivated bucket and is placed on described nursery pond on one side; A described wheel animalcule cultivation bucket lower end is provided with is with valvular wheel animalcule delivery outlet; Described wheel animalcule delivery outlet is connected with a circle pipe that is positioned at inner side, nursery pond top by pipeline; On the downside tube wall of described pipe, be furnished with multiple pores; Described pore is connected with the tracheae hanging down in nursery pond by air valve.
Described wheel animalcule is cultivated the height of bucket higher than described nursery pond.
The bucket end that described wheel animalcule is cultivated bucket, is conical structure, and conical lower section is also provided with Central Drainage mouth.
The position of described wheel animalcule delivery outlet exceeds conical lower section 5cm.
Described wheel animalcule is cultivated in bucket bucket inflating air stone.
The length of described tracheae is take the water surface in nursery pond described in end in contact under tracheae as full-length.
The technical solution adopted for the present invention to solve the technical problems is: also provide the young postlarva of a kind of silvery pomfret to drip throwing breeding method, adopt above-mentioned breeding arrangement, comprise the following steps:
(1) in cultivating bucket, wheel animalcule adopt chlorella to carry out wheel animalcule reinforced cultivating;
(2) air valve on tracheae is opened in set time every day, then by the valve open of wheel animalcule equipped at outlet port, a throwing speed for wheel animalcule be controlled at the uniform velocity splash into but do not become the degree of current by adjustings;
(3) spend the set time and closed the valve of wheel animalcule equipped at outlet port.
After described step (3), also comprise that the wheel animalcule that wheel animalcule is cultivated to bucket inner bottom part death is drained in time and the step of supplementary chlorella.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, has following advantage and good effect: the irritability that the present invention has avoided artificial bait throwing in to bring is coerced, and has farthest reduced the stress damage of the young postlarva of silvery pomfret; Can save bait, avoid too wasting, reduce seedling cost, also fully ensured that the wheel animalcule that fry is taken in contains more rich nutrient, is beneficial to growing of pomfret fingerlings simultaneously; The present invention has avoided the accumulation of too much dead bait in nursery pond, has ensured the condition of water quality in nursery pond, improves the survival rate of cultivating.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
The first embodiment of the present invention relates to the young postlarva of a kind of silvery pomfret and drips throwing breeding arrangement, as shown in Figure 1, comprises nursery pond 1 and wheel animalcule cultivation bucket 2, and described wheel animalcule is cultivated bucket 2 and is placed on described nursery pond 1 on one side by support 3; Described wheel animalcule cultivation bucket 2 lower ends are provided with is with valvular wheel animalcule delivery outlet; Described wheel animalcule delivery outlet is connected with a circle PVC pipe 7 that is positioned at nursery pond 1 inner side, top by pvc pipe road 4; On the downside tube wall of described PVC pipe 7, be evenly arranged multiple pores of arranging along circular tube circumference; Described pore is connected with the tracheae 9 hanging down in nursery pond by air valve 8.Described wheel animalcule is cultivated the height of bucket 2 higher than described nursery pond 1.The bucket end that described wheel animalcule is cultivated bucket 2, is conical structure, and conical lower section is also provided with Central Drainage mouth 6.The position of described wheel animalcule delivery outlet exceeds conical lower section 5cm.Described wheel animalcule is cultivated in 2 barrels, bucket inflating air stone 5.The length of described tracheae 9 is take the water surface in nursery pond 1 described in 9 times end in contact of tracheae as full-length.
The second embodiment of the present invention relates to the young postlarva of a kind of silvery pomfret and drips throwing breeding method, adopts above-mentioned breeding arrangement, comprises the following steps:
(1) in cultivating bucket, wheel animalcule adopt chlorella to carry out wheel animalcule reinforced cultivating;
(2) air valve on tracheae is opened in set time every day, then by the valve open of wheel animalcule equipped at outlet port, a throwing speed for wheel animalcule be controlled at the uniform velocity splash into but do not become the degree of current by adjustings;
(3) spend the set time and closed the valve of wheel animalcule equipped at outlet port.
After described step (3), also comprise that the wheel animalcule that wheel animalcule is cultivated to bucket inner bottom part death is drained in time and the step of supplementary chlorella.
Next further illustrate the present invention with a specific embodiment.
To June, carry out dripping of the young postlarva of silvery pomfret at Dongtou County, Wenzhou City, Zhejiang Province nursery and thrown culture experiment 2012 Mays on days.Cultivate 3 age in days pomfret fingerlings to 25 ages in days.Cultivation starts front elder generation and in wheel animalcule is cultivated bucket, adopts chlorella to carry out the reinforced cultivating of wheel animalcule.In process of the test, 7 of every mornings are to point in afternoons 4, first all air valves above PVC pipe are opened by a small margin, then the valve of wheel animalcule equipped at outlet port is slowly opened, by regulating, the throwing speed of dripping of wheel animalcule is controlled at and at the uniform velocity splashes into but do not become the degree of current, close the valve of wheel animalcule delivery outlet at 4 in afternoon., the wheel animalcule of wheel animalcule hot housing bucket inner bottom part death is drained in time meanwhile, and supplement chlorella in time.After off-test, the cultivating survival rate of the young postlarva of silvery pomfret has improved nearly 20% than traditional aspect, and it is nearly 25% that bait utilization has reduced, and the dirts such as the dead bait in nursery pond bottom obviously reduce.
Claims (8)
1. the young postlarva of silvery pomfret is dripped a throwing breeding arrangement, comprises nursery pond (1) and wheel animalcule cultivation bucket (2), it is characterized in that, described wheel animalcule is cultivated bucket (2) and is placed on described nursery pond (1) on one side; Described wheel animalcule cultivation bucket (2) lower end is provided with is with valvular wheel animalcule delivery outlet; Described wheel animalcule delivery outlet is connected with a circle pipe (7) that is positioned at inner side, nursery pond (1) top by pipeline (4); On the downside tube wall of described pipe (7), be furnished with multiple pores; Described pore is connected with the tracheae (9) hanging down in nursery pond (1) by air valve (8).
2. the young postlarva of silvery pomfret according to claim 1 is dripped throwing breeding arrangement, it is characterized in that, described wheel animalcule is cultivated the height of bucket (2) higher than described nursery pond (1).
3. the young postlarva of silvery pomfret according to claim 1 is dripped throwing breeding arrangement, it is characterized in that, the bucket end that described wheel animalcule is cultivated bucket (2) is conical structure, and conical lower section is also provided with Central Drainage mouth (6).
4. the young postlarva of silvery pomfret according to claim 3 is dripped throwing breeding arrangement, it is characterized in that, the position of described wheel animalcule delivery outlet exceeds conical lower section 5cm.
5. the young postlarva of silvery pomfret according to claim 1 is dripped throwing breeding arrangement, it is characterized in that, described wheel animalcule is cultivated in bucket (2) bucket inflating air stone (5).
6. the young postlarva of silvery pomfret according to claim 1 is dripped throwing breeding arrangement, it is characterized in that, the length of described tracheae (9) is take the water surface in nursery pond (1) described in the lower end in contact of tracheae (9) as full-length.
7. the young postlarva of silvery pomfret is dripped a throwing breeding method, it is characterized in that, adopts the breeding arrangement as described in arbitrary claim in claim 1-6, comprises the following steps:
(1) in cultivating bucket, wheel animalcule adopt chlorella to carry out wheel animalcule reinforced cultivating;
(2) air valve on tracheae is opened in set time every day, then by the valve open of wheel animalcule equipped at outlet port, a throwing speed for wheel animalcule be controlled at the uniform velocity splash into but do not become the degree of current by adjustings;
(3) spend the set time and closed the valve of wheel animalcule equipped at outlet port.
8. the young postlarva of silvery pomfret according to claim 7 is dripped throwing breeding method, it is characterized in that, also comprises that the wheel animalcule that wheel animalcule is cultivated to the death of bucket inner bottom part is drained in time and the step of supplementary chlorella after described step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081769.6A CN103202249B (en) | 2013-03-14 | 2013-03-14 | Drop cultivating device and method of pomfret larvae |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081769.6A CN103202249B (en) | 2013-03-14 | 2013-03-14 | Drop cultivating device and method of pomfret larvae |
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| CN103202249A CN103202249A (en) | 2013-07-17 |
| CN103202249B true CN103202249B (en) | 2014-06-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103988803B (en) * | 2014-06-18 | 2016-01-13 | 宁德市富发水产有限公司 | The hatching of a kind of hydrocone type zooplankton feed and feeding system and using method thereof |
| CN104719205B (en) * | 2015-03-20 | 2017-08-25 | 北京农业信息技术研究中心 | A kind of intelligentized temporary culture method for aquaculture fry |
| CN104872045A (en) * | 2015-06-01 | 2015-09-02 | 邹苏琪 | Fully-automatic juvenile fish breeding device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU660636A1 (en) * | 1977-11-16 | 1979-05-05 | Yaremenko Vladislav V | Device for distributing feed to fish in water reservoirs |
| CN202456089U (en) * | 2012-02-29 | 2012-10-03 | 中国水产科学研究院东海水产研究所 | Young silvery pomfret fry culture experiment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100308581B1 (en) * | 1999-06-23 | 2001-09-24 | 구선영 | Nursery System for Raising Fishes Having Buoyancy-Control Function and Method of Using the System |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU660636A1 (en) * | 1977-11-16 | 1979-05-05 | Yaremenko Vladislav V | Device for distributing feed to fish in water reservoirs |
| CN202456089U (en) * | 2012-02-29 | 2012-10-03 | 中国水产科学研究院东海水产研究所 | Young silvery pomfret fry culture experiment device |
Non-Patent Citations (6)
| Title |
|---|
| 人工养殖银鲳子代胚胎发育及仔稚幼鱼形态观察;施兆鸿等;《中国水产科学》;20110331;第18卷(第2期);第267-274页 * |
| 人工育苗条件下银鲳仔稚幼鱼摄食与生长特性;施兆鸿等;《海洋水产研究 》;20070831;第28卷(第4期);第38-46页 * |
| 施兆鸿等.人工养殖银鲳子代胚胎发育及仔稚幼鱼形态观察.《中国水产科学》.2011,第18卷(第2期),第267-274页. |
| 施兆鸿等.人工育苗条件下银鲳仔稚幼鱼摄食与生长特性.《海洋水产研究 》.2007,第28卷(第4期),第38-46页. |
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