CN101278661A - Method for fresh water aquiculturing Chum salmon - Google Patents
Method for fresh water aquiculturing Chum salmon Download PDFInfo
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- CN101278661A CN101278661A CNA2008100645701A CN200810064570A CN101278661A CN 101278661 A CN101278661 A CN 101278661A CN A2008100645701 A CNA2008100645701 A CN A2008100645701A CN 200810064570 A CN200810064570 A CN 200810064570A CN 101278661 A CN101278661 A CN 101278661A
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- water
- chum salmon
- autumn
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- salmon
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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
-
- 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
- Y02A40/818—Alternative feeds for fish, e.g. in aquacultures
Abstract
A method for culturing autumn salmon in freshwater relates to a culturing method of the salmon and aims at solving the problem that the autumn salmon can only exist or be cultured in salty water from young fry to adult fish at present. The method is that the autumn salmon is cultured in the freshwater from the young fry to the adult fish; the water temperature is 6 to 20 DEG C; the dissolved oxygen concentration in the water is 7mg/L at least; water pH value is 6 to 7; artificial granular feed is dropped for feeding the autumn salmon; the culture consistency of the young fries is 300 to 500 salmons/m<2>; the culture water depth is 0.4 to 0.6m; when the weight is increased to 40 to 60g/salmon, the water depth is increased to 0.8 to 1m; when the weight is increased to 150g/salmon, the water depth is increased to 1 to 1.2m. The method is used for culturing the autumn salmon, and the survival rate from the young fry of the autumn salmon to the large commercial fish is more than 75 percent, which meets the requirement of batch culture.
Description
Technical field
The present invention relates to the cultural method of a kind of chum salmon.
Background technology
Chum salmon (Oncorhynchus keta) is a kind of hatching of laying eggs in fresh water, grows in seawater, and the cold water fish that migration is laid eggs in the fresh water during sexual maturity is one of famous and precious fish in the world.Chum salmon migration process is: juvenile fish descends the river mouth to swim into the deep-sea in riverine river from the birthplace, and life waters salinity increases gradually, and this is for falling the sea, and adult fish enters the birth river by the deep-sea to the migration of littoral river mouth, and life waters salinity reduces gradually, and this is the river of tracing back.Mid-term in last century, the Heilungkiang autumn chum salmon in China's economic fish, occupy critical role.For protecting and utilize the chum salmon resource; increase migration colony quantity; China adopts artificial fecundation to release, and (the artificial fecundation process mainly is the propagation in scale juvenile fish to autumn chum salmon technology; then put into the suitable river water area of ecological environmental condition; the sea growth falls in juvenile fish; form artificial fecundation and return colony), successfully obtain to return colony, obtained positive effect.But this ocean is herded the formula multiplication technique and is cultivated the chum salmon juvenile fish time in autumn generally be no more than 6 months in fresh water, the artificial culture time is shorter, most of the time is at the ocean self-sow, is subjected to the influence of physioclimate environment bigger, the autumn chum salmon the output instability.At present chum salmon all must or be cultured in the existence of salt solution (salinity is greater than 30 ‰) lining from the postlarva to the adult fish autumn.
Summary of the invention
Purpose of the present invention solves present autumn chum salmon all must be in existence of salt solution (salinity is greater than 30 ‰) lining or the problem of culturing from the postlarva to the adult fish, and the method for a kind of fresh water aquiculturing Chum salmon that provides.
The method that fresh water of the present invention is raised the autumn chum salmon be from postlarva to the finished product autumn chum salmon fresh water, culture always, culturing with the fresh water water temperature is 6-20 ℃, dissolved oxygen in water concentration is at least 7mg/L, water PH value is 6-7; The artificial pellet of autumn chum salmon of throwing something and feeding, day feeding volume is the 3%-5% of autumn chum salmon body weight, divide every day and throw something and feed for 2-4 time, the autumn chum salmon artificial feed protein content of wherein being thrown something and fed is 38%-48% (weight), and fat content is at least 15% (weight); Autumn chum salmon postlarva cultivation density is 300-500 tail/m
2, the breed depth of water is 0.4-0.6m; Autumn chum salmon weight rises to the 40-60g/ tail, and cultivation density is 100-200 tail/m
2, the breed depth of water is 0.8-1m; Autumn chum salmon weight rises to more than the 150g/ tail, and cultivation density is 50-100 tail/m
2, the breed depth of water is 1-1.2m.
This method cultures the autumn chum salmon, changed the autumn chum salmon need be from the juvenile fish to the adult fish from the fresh water migration to Ocean Living rule, realized the freshwater aquiculture of autumn chum salmon.Postlarva arrives the survival rate of big standard commodities fish more than 75%, and juvenile growth speed was up to for 0.97 gram/day, and body weight reaches 200 grams then, reaches 500-800 and restrains in 1 year.The fish body goes the heavy percentage of liveweight 92.41% of internal organ ghost, and ghost fish body protein content 48.23% reaches the requirement of culturing in batches.
Embodiment
Embodiment one: with the autumn chum salmon postlarva put into area 50m
2In the crawl of depth of water 0.4-0.6m, put the 300-500 tail in a suitable place to breed for every square metre, the water source is underground artesian spring water or underground water, adopt disposable flowing water or circulating water cultivation, water temperature utilizes increase current or inflator pump to make the oxyty of water at least at 7mg/l at 6-20 ℃, water PH value is at 6-7, and water quality index meets the growth requirement; The artificial pellet of the chum salmon of throwing something and feeding, protein content 38%-48% (weight), fat content is at least 15% (weight), and day feeding volume calculates by the 3-5% of fish body weight, and day throws something and feeds 2-4 time; When autumn chum salmon weight rises to the 40-60g/ tail, the area of crawl is increased to 100m
2, the depth of water is increased to 0.8-1m, cultivation density 100-200 tail/m
2When fish weighs the 150g/ tail when above, the depth of water is increased to 1-1.2m, cultivation density 50-100 tail/m
2
Embodiment two: what present embodiment and embodiment one were different is that autumn chum salmon artificial feed are made up of the additive of 50%-60% fish meal, 15%-20% shrimp med, 10%-15% soybean and 10%-20% by weight percentage; Wherein additive is made up of wheat flour, vitamin, Choline Chloride, calcium pantothenate, metallic element, refined fish oil and complex enzyme, and other are identical with embodiment one.
Proportionate relationship in the present embodiment additive between each component can be regulated according to the breed situation.
Embodiment three: present embodiment and embodiment one are different is that the water of cultivation fish pond is fresh water, salinity≤2 ‰, and other are identical with embodiment one.
Embodiment four: present embodiment and embodiment one are different be the water temperature of cultivation fish pond at 10-20 ℃, other are identical with embodiment ().
Embodiment five: present embodiment and embodiment one are different be the water temperature of cultivation fish pond at 16-20 ℃, other are identical with embodiment ().
Embodiment six: present embodiment and embodiment one are different be the water temperature of cultivation fish pond at 16 ℃, other are identical with embodiment ().
Embodiment seven: present embodiment and embodiment one are different be the water temperature of cultivation fish pond at 19 ℃, other are identical with embodiment one.
Claims (6)
1, a kind of method of fresh water aquiculturing Chum salmon, fresh water aquiculturing Chum salmon be characterised in that from postlarva to the finished product autumn chum salmon fresh water, culture always, culturing with the fresh water water temperature is 6-20 ℃, and dissolved oxygen in water concentration is at least 7mg/L, and water pH value is 6-7; The artificial pellet of autumn chum salmon of throwing something and feeding, wherein protein content is 38%-48% (weight), and fat content is at least 15% (weight), and a day feeding volume is the 3%-5% of autumn chum salmon body weight, divides every day and throws something and feeds for 2-4 time; Autumn chum salmon postlarva cultivation density is 300-500 tail/m
2, the breed depth of water is 0.4-0.6m; Autumn chum salmon weight rises to the 40-60g/ tail, and cultivation density is 100-200 tail/m
2, the breed depth of water is 0.8-1m; Autumn chum salmon weight rises to more than the 150g/ tail, and cultivation density is 50-100 tail/m
2, the breed depth of water is 1-1.2m.
2, the method for fresh water aquiculturing Chum salmon according to claim 1 is characterized in that autumn chum salmon artificial feed are made up of the additive of 50%-60% fish meal, 15%-20% shrimp med, 10%-15% soybean and 10%-20% by weight percentage; Wherein additive is made up of wheat flour, vitamin, Choline Chloride, calcium pantothenate, metallic element, refined fish oil and complex enzyme.
3, the method for fresh water aquiculturing Chum salmon according to claim 1 is characterized in that culturing with limneticum≤2 ‰.
4, according to the method for claim 1 or 4 described fresh water aquiculturing Chum salmons, it is characterized in that culturing with fresh water is underground artesian spring water or underground water.
5, the method for fresh water aquiculturing Chum salmon according to claim 1 is characterized in that juvenile fish to adult fish culture is 16-20 ℃ with the fresh water water temperature.
6, the method for fresh water aquiculturing Chum salmon according to claim 1 is characterized in that adopting disposable flowing water or circulating water cultivation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100645701A CN101278661A (en) | 2008-05-23 | 2008-05-23 | Method for fresh water aquiculturing Chum salmon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100645701A CN101278661A (en) | 2008-05-23 | 2008-05-23 | Method for fresh water aquiculturing Chum salmon |
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| CN101278661A true CN101278661A (en) | 2008-10-08 |
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| CNA2008100645701A Pending CN101278661A (en) | 2008-05-23 | 2008-05-23 | Method for fresh water aquiculturing Chum salmon |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103004673A (en) * | 2013-01-18 | 2013-04-03 | 中国水产科学研究院黑龙江水产研究所 | Salmon parent fish raising maturing method |
| CN109874708A (en) * | 2019-04-09 | 2019-06-14 | 北京市水生野生动植物救护中心 | A kind of method for culturing seedlings of land envelope type cherry salmon triploid seed |
| CN112155137A (en) * | 2020-11-03 | 2021-01-01 | 吉林省水产科学研究院 | Feed for juvenile salmon of salmon in horse scotch and preparation method thereof |
-
2008
- 2008-05-23 CN CNA2008100645701A patent/CN101278661A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103004673A (en) * | 2013-01-18 | 2013-04-03 | 中国水产科学研究院黑龙江水产研究所 | Salmon parent fish raising maturing method |
| CN109874708A (en) * | 2019-04-09 | 2019-06-14 | 北京市水生野生动植物救护中心 | A kind of method for culturing seedlings of land envelope type cherry salmon triploid seed |
| CN112155137A (en) * | 2020-11-03 | 2021-01-01 | 吉林省水产科学研究院 | Feed for juvenile salmon of salmon in horse scotch and preparation method thereof |
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Open date: 20081008 |