CN103004661A - Early-stage domestication and cultivation method of paddlefish seedlings - Google Patents
Early-stage domestication and cultivation method of paddlefish seedlings Download PDFInfo
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- CN103004661A CN103004661A CN2012105582404A CN201210558240A CN103004661A CN 103004661 A CN103004661 A CN 103004661A CN 2012105582404 A CN2012105582404 A CN 2012105582404A CN 201210558240 A CN201210558240 A CN 201210558240A CN 103004661 A CN103004661 A CN 103004661A
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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 an early-stage domestication and cultivation method of paddlefish seedlings, and relates to the early-stage domestication and cultivation method of fish seedlings. The technical problems that the mortality of paddlefish is high, the operation is complicated, the cost is higher, and the popularization is uneasy according to the traditional fish seedling cultivation method are solved, thereby providing the early-stage domestication and cultivation method of paddlefish seedlings. The method comprises the following steps that larval paddlefish seedlings are cultivated with live baits for 5-6d, and then are domesticated and bred with cultivated a compound feed, and simultaneously the breeding density and other environmental factors are controlled until the seedling weight is up to 1.5 to 2g and the seedling length is up to 4 to 5cm to complete the early-stage domestication and cultivation of paddlefish seedlings. The cultivated seedlings have good quality, and the survival rate can be increased by more than 50%. The method provided by the invention has the advantages of simplicity in operation, low cost, easiness in popularization and the like, and is applied to the field of aquatic product breeding.
Description
Technical field
The present invention relates to the early stage acclimatization culture method of fish seed.
Background technology
Paddlefish (polyodon spathula) belongs to Gadiformes, paddlefish section, and paddlefish belongs to.The good large-scale economic freshwater fish of Mississippi Valley, a kind of original North America, have that strong adaptability, growth are fast, the zooplankton that ingests, suitable production cost are low, can cultivate, fish in reservoir the high and economic worth high of rate, are the fish culture kinds of improving About The Ecosystem of Fishery, distributing fishery resources rationally.Since 1988 introduced paddlefish from the U.S., the paddlefish aquaculture had obtained fast development in China, now cultivates in the whole nation more than ten province, municipality directly under the Central Government, and economic benefit and social benefit are very remarkable.Paddlefish is pelagic fishes, and omnivorousness is take the filter food as main, similar to bighead; Under traditional fish seed rearing pattern, paddlefish seed lethality is high, with and the characteristics of food ration, recipe and feeding behaviour particularity, the seed acclimatization culture technology of other fish also is not suitable for paddlefish seed acclimatization culture.At present, the domestic concrete operations technology that does not also have the early stage domestication of paddlefish seed, in addition, need and to admix manufactured feed after the biological feed pulverizing in the tradition sturgeons seed acclimatization culture process, what have also need add other nutriments such as grease, multivitamin simultaneously, its operating process is complicated, and cost is higher; And a lot of places do not have condition to buy or cultivated the fresh and alive biological feed of q.s, and the pattern that therefore adopts conventional method to carry out the paddlefish seed rearing is difficult for promoting.
Summary of the invention
The present invention is that will to solve under traditional fish seed rearing mode the paddlefish lethality high, complicated operation, and cost is higher, is difficult for the technical problem promoted, thereby provides the paddlefish seed early stage acclimatization culture method.
The early stage acclimatization culture method of paddlefish seed of the present invention carries out in the steps below:
One, by the density of each circular glass steel tank 5000～6000 tail prelarva the paddlefish prelarva being put into circular glass steel tank through sterilization, is that 18～20 ℃ of lower live bait openings are cultivated 5～6d in temperature, removes dead seedling and residual thing in the cultivating process; Wherein, the diameter of described circular glass steel tank is 2～3m, and height is 40～50cm;
Two, after the prelarva opening is cultivated, be 10～100Lux in intensity of illumination, light application time is 6～12 hours/day, and temperature is under 18～22 ℃, and the manufactured feed of the diameter of throwing something and feeding≤80 μ m induces prelarva to ingest, and throws something and feeds every day 3～4 times;
Three, prelarva is behind manufactured feed food calling 2～3d, throw something and feed every day 8～10 times, every day, feeding volume was that 2%～3% of fry body weight is carried out acclimatization culture, after the fry body weight reaches 1～1.5g, throw something and feed every day 5～6 times, every day, feeding volume was 1%～2% of fry body weight, cultivated to the body weight of seed to reach 1.5～2g, body length is 4～5cm, namely finishes the early stage acclimatization culture of paddlefish seed; Wherein, the fry body weight greater than 0.5g after cultivation density be less than 0.5kg/m
3Manufactured feed is bought and is unified feed corporation,Ltd from middle mountain.
The present invention includes following beneficial effect:
1, anchovies of the present invention is behind the live bait opening, and the manufactured feed of only throwing something and feeding gets final product, and need not add other nutriments such as grease, multivitamin, and is easy and simple to handle, with low cost;
2, prelarva of the present invention is cultivated the control that is conducive to bacterial gill by the density of each circular glass steel tank 5000～6000 tail, reduces prelarva and stings the tail probability of disabling, and improves the opening survival rate of prelarva;
3, the seed quality better of the present invention's cultivation, survival rate can reach 78%～85%, improve more than 50%, the shortcoming of the high mortality of effectively having improved the factor such as biological feed nutrition under-supply and that applying biological bait brings in the paddlefish seed tradition type of rearing is unbalanced, portable causal organism and having caused, greatly simplified breeding technique, while also provides reference and experience for the domestication of other fish, is easy to promote.
Embodiment
Embodiment one: the early stage acclimatization culture method of paddlefish seed of present embodiment carries out in the steps below:
One, by the density of each circular glass steel tank 5000～6000 tail prelarva the paddlefish prelarva being put into circular glass steel tank through sterilization, is that 18～20 ℃ of lower live bait openings are cultivated 5～6d in temperature, removes dead seedling and residual thing in the cultivating process; Wherein, the diameter of described circular glass steel tank is 2～3m, and height is 40～50cm;
Two, after the prelarva opening is cultivated, be 10～100Lux in intensity of illumination, light application time is 6～12 hours/day, and temperature is under 18～22 ℃, and the manufactured feed of the diameter of throwing something and feeding≤80 μ m induces prelarva to ingest, and throws something and feeds every day 3～4 times;
Three, prelarva is behind manufactured feed food calling 2～3d, throw something and feed every day 8～10 times, every day, feeding volume was that 2%～3% of fry body weight is carried out acclimatization culture, after the fry body weight reaches 1～1.5g, throw something and feed every day 5～6 times, every day, feeding volume was 1%～2% of fry body weight, cultivated to the body weight of seed to reach 1.5～2g, body length is 4～5cm, namely finishes the early stage acclimatization culture of paddlefish seed; Wherein, the fry body weight greater than 0.5g after cultivation density be less than 0.5kg/m
3
Present embodiment comprises following beneficial effect:
1, the anchovies of present embodiment is behind the live bait opening, and the manufactured feed of only throwing something and feeding gets final product, and need not add other nutriments such as grease, multivitamin, and is easy and simple to handle, with low cost;
2, the prelarva of present embodiment is cultivated the control that is conducive to bacterial gill by the density of each circular glass steel tank 5000～6000 tail, reduces prelarva and stings the tail probability of disabling, and improves the opening survival rate of prelarva;
3, the seed quality better of present embodiment cultivation, survival rate can reach 78%～85%, improve more than 50%, the shortcoming of the high mortality of effectively having improved the factor such as biological feed nutrition under-supply and that applying biological bait brings in the paddlefish seed tradition type of rearing is unbalanced, portable causal organism and having caused, greatly simplified breeding technique, while also provides reference and experience for the domestication of other fish, is easy to promote.
Embodiment two: what present embodiment and embodiment one were different is: the circular glass steel tank is sterilized with povidone iodine in the step 1.Other is identical with embodiment one.
Embodiment three: what present embodiment was different from embodiment one or two is: be that 18 ℃ of lower live bait openings are cultivated 6d in temperature in the step 1.Other is identical with embodiment one or two.
Embodiment four: what present embodiment was different from one of embodiment one to three is: the diameter of described circular glass steel tank is 2m, and height is 40cm.Other is identical with one of embodiment one to three.
Embodiment five: what present embodiment was different from one of embodiment one to four is: intensity of illumination is 20～80Lux in the step 2, and light application time is 8～10 hours/day.Other is identical with one of embodiment one to four.
Embodiment six: what present embodiment was different from one of embodiment one to five is: after the fry body weight reaches 1g, throw something and feed every day 5 times in the step 3.Other is identical with one of embodiment one to five.
By following verification experimental verification beneficial effect of the present invention:
Test one: the early stage acclimatization culture method of paddlefish seed of this experiment is to realize according to the following steps:
One, the paddlefish prelarva being put into the circular glass steel tank of sterilizing through povidone iodine by the density of each circular glass steel tank 5000 tail prelarva, is that 18 ℃ of lower live bait openings are cultivated 6d in temperature, removes dead seedling and residual thing in the cultivating process; Wherein, the diameter of described circular glass steel tank is 2m, and height is 40cm;
Two, after the prelarva opening is cultivated, be 100Lux in intensity of illumination, light application time is 12 hours/day, and temperature is under 20 ℃, and the manufactured feed of the diameter 50 μ m that throw something and feed induces prelarva to ingest, and throws something and feeds every day 3 times;
Three, prelarva is behind manufactured feed food calling 2d, throw something and feed every day 8 times, every day, feeding volume was that 3% of fry body weight is carried out acclimatization culture, after the fry body weight reaches 1g, throw something and feed every day 5 times, every day, feeding volume was 2% of fry body weight, cultivated to the body weight of seed to reach 2.0g, the long 5cm of body, namely finished the early stage acclimatization culture of paddlefish seed; Wherein, the fry body weight is that cultivation density is 0.5kg/m behind the 0.5g
3
The anchovies of this test is behind the live bait opening, and the manufactured feed of only throwing something and feeding gets final product, and need not add other nutriments such as grease, multivitamin, and is easy and simple to handle, with low cost;
The prelarva of this test is cultivated the control that is conducive to bacterial gill by the density of each circular glass steel tank 5000 tail, reduce prelarva and sting the tail probability of disabling, and improves the opening survival rate of prelarva;
The seed quality better that this test is cultivated, each circular glass steel tank 5000 tail prelarva can survive 4000 tails, survival rate can reach 80%, the shortcoming of the high mortality of effectively having improved the factor such as biological feed nutrition under-supply and that applying biological bait brings in the paddlefish seed tradition type of rearing is unbalanced, portable causal organism and having caused, greatly simplified breeding technique, while also provides reference and experience for the domestication of other fish, is easy to promote.
Claims (6)
1. the early stage acclimatization culture method of paddlefish seed is characterized in that the early stage acclimatization culture method of paddlefish seed is to carry out according to the following steps:
One, by the density of each circular glass steel tank 5000～6000 tail prelarva the paddlefish prelarva being put into circular glass steel tank through sterilization, is that 18～20 ℃ of lower live bait openings are cultivated 5～6d in temperature, removes dead seedling and residual thing in the cultivating process; Wherein, the diameter of described circular glass steel tank is 2～3m, and height is 40～50cm;
Two, after the prelarva opening is cultivated, be 10～100Lux in intensity of illumination, light application time is 6～12 hours/day, and temperature is under 18～22 ℃, and the manufactured feed of the diameter of throwing something and feeding≤80 μ m induces prelarva to ingest, and throws something and feeds every day 3～4 times;
Three, prelarva is behind manufactured feed food calling 2～3d, throw something and feed every day 8～10 times, every day, feeding volume was that 2%～3% of fry body weight is carried out acclimatization culture, after the fry body weight reaches 1～1.5g, throw something and feed every day 5～6 times, every day, feeding volume was 1%～2% of fry body weight, cultivated to the body weight of seed to reach 1.5～2g, body length is 4～5cm, namely finishes the early stage acclimatization culture of paddlefish seed; Wherein, the fry body weight greater than 0.5g after cultivation density be less than 0.5kg/m
3
2. the early stage acclimatization culture method of paddlefish seed according to claim 1 is characterized in that the circular glass steel tank is sterilized with povidone iodine in the step 1.
3. the early stage acclimatization culture method of paddlefish seed according to claim 1 is characterized in that in the step 1 in temperature being that 18 ℃ of lower live bait openings are cultivated 6d.
4. the early stage acclimatization culture method of paddlefish seed according to claim 1, the diameter that it is characterized in that the steel tank of circular glass described in the step 1 is 2m, height is 40cm.
5. the early stage acclimatization culture method of paddlefish seed according to claim 1 is characterized in that intensity of illumination is 20～80Lux in the step 2, and light application time is 8～10 hours/day.
6. the early stage acclimatization culture method of paddlefish seed according to claim 1 is characterized in that in the step 3 throwing something and feeding every day 5 times after the fry body weight reaches 1g.
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| CN2012105582404A CN103004661A (en) | 2012-12-20 | 2012-12-20 | Early-stage domestication and cultivation method of paddlefish seedlings |
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| CN2012105582404A CN103004661A (en) | 2012-12-20 | 2012-12-20 | Early-stage domestication and cultivation method of paddlefish seedlings |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103329830A (en) * | 2013-07-12 | 2013-10-02 | 中国水产科学研究院长江水产研究所 | Wild-training method for improving feeding ability of released Acipenser dabryanus |
| CN103348941A (en) * | 2013-06-28 | 2013-10-16 | 镇江水中仙渔业发展有限公司 | Cultivation method of sturgeon |
| CN103548736A (en) * | 2013-11-01 | 2014-02-05 | 中国水产科学研究院黑龙江水产研究所 | Method for domesticating and cultivating Huso dauricus fry |
| CN104823894A (en) * | 2015-06-03 | 2015-08-12 | 铜陵县国斌水产综合养殖有限责任公司 | Paddlefish breeding method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103348941A (en) * | 2013-06-28 | 2013-10-16 | 镇江水中仙渔业发展有限公司 | Cultivation method of sturgeon |
| CN103348941B (en) * | 2013-06-28 | 2015-11-04 | 镇江水中仙渔业发展有限公司 | The cultural method of a kind of sturgeon |
| CN103329830A (en) * | 2013-07-12 | 2013-10-02 | 中国水产科学研究院长江水产研究所 | Wild-training method for improving feeding ability of released Acipenser dabryanus |
| CN103329830B (en) * | 2013-07-12 | 2015-03-11 | 中国水产科学研究院长江水产研究所 | Wild-training method for improving feeding ability of released Acipenser dabryanus |
| CN103548736A (en) * | 2013-11-01 | 2014-02-05 | 中国水产科学研究院黑龙江水产研究所 | Method for domesticating and cultivating Huso dauricus fry |
| CN103548736B (en) * | 2013-11-01 | 2016-03-23 | 中国水产科学研究院黑龙江水产研究所 | The domestication by low temperature breeding method of a kind of Huso huso seed |
| CN104823894A (en) * | 2015-06-03 | 2015-08-12 | 铜陵县国斌水产综合养殖有限责任公司 | Paddlefish breeding method |
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Application publication date: 20130403 |