CN106719170B - Sturgeon hatching method - Google Patents
Sturgeon hatching method Download PDFInfo
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- CN106719170B CN106719170B CN201611250952.4A CN201611250952A CN106719170B CN 106719170 B CN106719170 B CN 106719170B CN 201611250952 A CN201611250952 A CN 201611250952A CN 106719170 B CN106719170 B CN 106719170B
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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 discloses a sturgeon hatching method, which comprises the following steps: constructing a pond in a creek running water without pollution in a mountain area; the net cage is used as an incubation groove, the inner layer of the net cage is provided with meshes, and the net cloth is soft; fully fertilizing sperm and ovum, standing for a moment, discarding sewage, and debonding with pulvis Talci; placing the debonded fertilized eggs in an incubation net cage for incubation for 18-24 hours; continuing incubation for 68-72 hours; continuously incubating for 24-48 hours; the young fish is continuously cultured in the incubator for 72 to 96 hours after coming out of the membrane. According to the sturgeon hatching method, according to the characteristics of growth and reproduction of sturgeons, the required environmental conditions of sturgeon oosperms are accurately adjusted, the required oxygen material elements are provided, the hatching of the sturgeons is well guaranteed, the sturgeon hatching rate is improved, the hatched sturgeon fries are strong in physique, the follow-up breeding is effectively guaranteed, and the sturgeon breeding cost is reduced.
Description
Technical Field
The invention relates to the technical field of sturgeon culture, in particular to a sturgeon hatching method.
Background
Sturgeons are fish of the order Acipenseridae, which belong to the order Osteichthyes, class Aphis radiata, order Scleroderma, order Acipenseridae. Sturgeon is one of the earliest vertebrates in origin, and is named as Chinese sturgeon, huso, bitter preserved fish, and the like according to different regions or varieties, and the weight of the sturgeon is 68-250 kg. China is one of the countries with the most sturgeon varieties, the most widespread sturgeon varieties and the most abundant sturgeon resources in the world. There are 8 species of wild sturgeons in China, including acipenser schrenckii, huso dauricus and acipenser schrencki distributed in Heilongjiang, Songhua river and Wusullijiang river basin; chinese sturgeons, acipenser dabryanus and white sturgeons distributed in Yangtze river and Jinshajiang river basin; sturgeons distributed in waters of Yining Xinjiang et al; siberian sturgeons distributed in the brother Qisshe, the Bronto-Hai, the Baussing lake, Xinjiang. Wherein, the Chinese sturgeon is a precious fish which is a special product in China and belongs to a first-level protected animal in China. The sturgeon has the effects of tonifying qi and deficiency, activating blood and treating stranguria, tonifying stomach and the like, is delicious and smooth in taste and fragrant and sweet in mouth, has a great number of advantages, is gradually aroused by artificially cultured sturgeons, and continuously meets the requirements of people on the sturgeons. And all parts of the sturgeon body can be eaten, and the taste is delicious and unique, so that higher benefits can be obtained by culturing the sturgeon. The artificially cultured sturgeon is mainly cultured by larvae, juvenile fishes and juvenile fishes, namely, the juvenile fishes are mainly cultured into adult fishes for people to eat. And then relatively less in the aspect of the breeding, hatching and cultivating of sturgeon, this is that the breeding and hatching of sturgeon require highly to breed the technique, for accelerating sturgeon and breed, for the follow-up breed fry source of sturgeon, improve and breed efficiency, sturgeon hatching technique also increases gradually, present sturgeon hatching method mainly is to place the embryonated egg and hatch in the incubator that has the function of turning, keeps required temperature during the hatching, established incubation time. Although this kind of incubation mode has improved the hatchability to a certain extent, has promoted sturgeon's aquaculture, because need make a round trip to turn the incubator, often appear turning when too big, cause the embryonated egg to destroy on the contrary, influence the hatching, the hatchability does not reach ideal effect for sturgeon breeds the cost increase. In addition, the temperature does not combine sturgeon hatching characteristics to adjust temperature rivers during hatching for the embryonated egg can't obtain elements such as required environment and oxygen material, makes the hatchability low, increases sturgeon hatching cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sturgeon hatching method which reasonably provides oxygen material elements for a sturgeon fertilized egg environment and further improves the sturgeon hatching rate.
A sturgeon hatching method comprises the following steps: (1) selecting an address: constructing a pond in a stream which is close to a mountain area and has no pollution, wherein the stream flows through the pond, the stream has microflow, wind resistance and shady back, the pond is 5-6 m deep, and the water source is sufficient; (2) setting an incubation net cage: the net cage is used as an incubation groove, meshes are arranged on the inner layer of the net cage, the net cloth is soft, the outer layer of the net cage plays a role in protection, and the arranged net cage is fixed on a corner of a pond, wherein the water quality is fresh; (3) fertilization: using 12-18 ml of semen for 1-2 kg of sturgeon roes, firstly diluting the semen 180 times with sterile water, then pouring the diluted semen into the roes, uniformly stirring for 5-6 minutes to fully fertilize the roes, standing for a moment, discarding sewage, and using talcum powder for debonding, wherein the debonding time is 30-45 minutes; (4) hatching in the first stage: placing the debonded fertilized eggs in an incubation net cage for incubation, wherein the incubation water temperature is 12-18 ℃, the incubation time is 18-24 hours, the dissolved oxygen value of a water body is kept at 4-5 mg/L, and the water flow speed is kept at 0.8-1 m/s; (5) and (3) hatching in the second stage: adjusting the temperature of the incubation water to be 20-22 ℃, continuing incubation for 68-72 hours, keeping the dissolved oxygen value of the water body at 6-8 mg/L, and keeping the water flow speed at 1-1.2 m/s; (6) hatching in the third stage: adjusting the temperature of the incubation water to be 16-18 ℃, continuing incubation for 24-48 hours, keeping the dissolved oxygen value of the water body at 5-6 mg/L, and keeping the water flow speed at 1.2-1.5 m/s; (7) and (3) film discharging management: and continuously culturing the young fishes in the incubator for 72 to 96 hours after the young fishes come out of the membranes, keeping the water temperature at 20 to 22 ℃, and keeping the water flow speed at 1.2 to 1.5 m/s.
Further, step (4) of the sturgeon hatching method is a first stage hatching: and (3) placing the debonded fertilized eggs in an incubation net cage for incubation, wherein the incubation water temperature is 18 ℃, and the water dissolved oxygen value is kept at 5 mg/L.
Further, step (5) of the sturgeon hatching method is a second stage hatching: the temperature of the hatching water is adjusted to be 22 ℃, and the dissolved oxygen value of the water body is kept at 8 mg/L.
Further, step (6) of the sturgeon hatching method is a third stage hatching: the temperature of the hatching water is adjusted to be 18 ℃, and the dissolved oxygen value of the water body is kept at 6 mg/L.
The sturgeon hatching method has the advantages that according to the growth and reproduction characteristics of sturgeons, the required environmental conditions of sturgeon oosperms are accurately adjusted, the required oxygen material elements are provided, the sturgeon hatching is well guaranteed, the sturgeon hatching rate is improved, the hatched sturgeon fries are strong in physique, the follow-up breeding is effectively guaranteed, the sturgeon breeding cost is reduced, and the sturgeon breeding efficiency is improved. And the method has simple steps and convenient operation, and is suitable for popularization and application.
Detailed Description
The applicant breeds sturgeons for a long time, repeatedly adjusts the living environment of the sturgeons by observing the life habits of the sturgeons, continuously improves the sturgeon hatching conditions, researches and summarizes the sturgeon hatching method, better improves the sturgeon hatching rate, saves the sturgeon breeding cost and improves the sturgeon breeding benefits. The present invention is described below with reference to examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
A sturgeon hatching method is characterized in that: the method comprises the following steps:
(1) selecting an address: constructing a pond in a stream which is close to a mountain area and has no pollution, wherein the stream flows through the pond, the stream has microflow, wind resistance and shady back, the pond is 5-6 m deep, and the water source is sufficient;
(2) setting an incubation net cage: the net cage is used as an incubation groove, meshes are arranged on the inner layer of the net cage, the net cloth is soft, the outer layer of the net cage plays a role in protection, and the arranged net cage is fixed on a corner of a pond, wherein the water quality is fresh;
(3) fertilization: using 12-18 ml of semen for 1-2 kg of sturgeon roes, firstly diluting the semen 180 times with sterile water, then pouring the diluted semen into the roes, uniformly stirring for 5-6 minutes to fully fertilize the roes, standing for a moment, discarding sewage, and using talcum powder for debonding, wherein the debonding time is 30-45 minutes;
(4) hatching in the first stage: placing the debonded fertilized eggs in an incubation net cage for incubation, wherein the incubation water temperature is 12-18 ℃, the incubation time is 18-24 hours, the dissolved oxygen value of a water body is kept at 4-5 mg/L, and the water flow speed is kept at 0.8-1 m/s;
(5) and (3) hatching in the second stage: adjusting the temperature of the incubation water to be 20-22 ℃, continuing incubation for 68-72 hours, keeping the dissolved oxygen value of the water body at 6-8 mg/L, and keeping the water flow speed at 1-1.2 m/s;
(6) hatching in the third stage: adjusting the temperature of the incubation water to be 16-18 ℃, continuing incubation for 24-48 hours, keeping the dissolved oxygen value of the water body at 5-6 mg/L, and keeping the water flow speed at 1.2-1.5 m/s;
(7) and (3) film discharging management: and continuously culturing the young fishes in the incubator for 72 to 96 hours after the young fishes come out of the membranes, keeping the water temperature at 20 to 22 ℃, and keeping the water flow speed at 1.2 to 1.5 m/s.
In order to improve the incubation rate of the sturgeons, the sturgeon incubation method comprises the following steps of (4) first-stage incubation: and (3) placing the debonded fertilized eggs in an incubation net cage for incubation, wherein the incubation water temperature is 18 ℃, and the water dissolved oxygen value is kept at 5 mg/L.
In order to better improve the sturgeon hatching rate, the sturgeon hatching method comprises the following steps of (5) hatching in a second stage: the temperature of the hatching water is adjusted to be 22 ℃, and the dissolved oxygen value of the water body is kept at 8 mg/L.
Provides the conditions for hatching the sturgeons reasonably and further improves the hatching rate of the sturgeons. Step (6) of the sturgeon hatching method, hatching in the third stage: the temperature of the hatching water is adjusted to be 18 ℃, and the dissolved oxygen value of the water body is kept at 6 mg/L.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A sturgeon hatching method is characterized in that: the method comprises the following steps:
(1) selecting an address: constructing a pond in a stream which is close to a mountain area and has no pollution, wherein the stream flows through the pond, the stream has microflow, wind resistance and shady back, the pond is 5-6 m deep, and the water source is sufficient;
(2) setting an incubation net cage: the net cage is used as an incubation groove, soft net cloth is arranged on the inner layer of the net cage, the outer layer of the net cage plays a role in protection, and the arranged net cage is fixed on a corner of a pond, wherein the water quality of the corner is fresh;
(3) fertilization: using 12-18 ml of semen for 1-2 kg of sturgeon roes, firstly diluting the semen 180 times with sterile water, then pouring the diluted semen into the roes, uniformly stirring for 5-6 minutes to fully fertilize the roes, standing for a moment, discarding sewage, and using talcum powder for debonding, wherein the debonding time is 30-45 minutes;
(4) hatching in the first stage: placing the debonded fertilized eggs in an incubation net cage for incubation, wherein the incubation water temperature is 12-18 ℃, the incubation time is 18-24 hours, the dissolved oxygen value of a water body is kept at 4-5 mg/L, and the water flow speed is kept at 0.8-1 m/s;
(5) and (3) hatching in the second stage: adjusting the temperature of the incubation water to be 20-22 ℃, continuing incubation for 68-72 hours, keeping the dissolved oxygen value of the water body at 6-8 mg/L, and keeping the water flow speed at 1-1.2 m/s;
(6) hatching in the third stage: adjusting the temperature of the incubation water to be 16-18 ℃, continuing incubation for 24-48 hours, keeping the dissolved oxygen value of the water body at 5-6 mg/L, and keeping the water flow speed at 1.2-1.5 m/s;
(7) and (3) film discharging management: and continuously culturing the young fishes in the incubator for 72 to 96 hours after the young fishes come out of the membranes, keeping the water temperature at 20 to 22 ℃, and keeping the water flow speed at 1.2 to 1.5 m/s.
2. A method of incubating sturgeons according to claim 1, characterized in that: the step (4) comprises a first stage incubation: and (3) placing the debonded fertilized eggs in an incubation net cage for incubation, wherein the incubation water temperature is 18 ℃, and the water dissolved oxygen value is kept at 5 mg/L.
3. A method of incubating sturgeons according to claim 1, characterized in that: the step (5) is a second stage incubation: the temperature of the hatching water is adjusted to be 22 ℃, and the dissolved oxygen value of the water body is kept at 8 mg/L.
4. A method of incubating sturgeons according to claim 1, characterized in that: the step (6) is a third stage hatching: the temperature of the hatching water is adjusted to be 18 ℃, and the dissolved oxygen value of the water body is kept at 6 mg/L.
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| CN201611250952.4A CN106719170B (en) | 2016-12-30 | 2016-12-30 | Sturgeon hatching method |
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| CN109511581B (en) * | 2018-11-07 | 2021-08-24 | 湖北清江鲟鱼谷特种渔业有限公司 | Sturgeon parent breeding method for producing caviar |
| CN110178766B (en) * | 2019-07-10 | 2021-11-09 | 新疆伊河鲟业科技股份有限公司 | Artificial breeding method of Acipenser lapipenser |
| CN114009380A (en) * | 2021-10-25 | 2022-02-08 | 湖北清江鲟鱼谷特种渔业有限公司 | Sturgeon hatching method and system based on neural network model |
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| CN203435544U (en) * | 2013-08-29 | 2014-02-19 | 中国水产科学研究院南海水产研究所 | Marine fish large-scale seedling culture and incubation net cage |
| CN104160986B (en) * | 2014-06-11 | 2016-08-24 | 贵州省水产研究所 | A kind of mountain area sturgeon parent culture and induced spawning method |
| CN104145866B (en) * | 2014-08-22 | 2016-02-24 | 王维坤 | The method of Leusiscus brandti artificial breeding, enhancement releasing |
| CN104663547B (en) * | 2015-03-11 | 2017-06-13 | 中国水产科学研究院长江水产研究所 | A kind of perch carp large-scale artificial propagation method |
| CN105028269B (en) * | 2015-06-25 | 2017-12-08 | 遵义绥阳县芙蓉江鲟鱼繁养有限公司 | A kind of method for culturing seedlings of sturgeon |
| CN105557586A (en) * | 2016-01-13 | 2016-05-11 | 杭州千岛湖鲟龙科技股份有限公司 | Hybrid breeding method for female Siberian sturgeon and male Amur sturgeon |
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