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Method for incubating brachymystax lenok seeds

A cultivation method and technology of leptinus, which is applied in the field of cultivation of leptinus seedlings, can solve the problems of cumbersome cultivation technology, high mortality rate, and difficulty in popularization, and achieve simplification of breeding process, improvement of high mortality rate, and easy promotion Effect

Inactive Publication Date: 2010-06-30
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of high mortality rate in the cultivation process of leptosmolt seedlings, and the seedling cultivation technology of other fishes is too complicated, difficult to popularize, and is not suitable for cultivating leptin salmon seedlings, and to provide fine Cultivation method of squamous salmon seedlings

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  • Method for incubating brachymystax lenok seeds
  • Method for incubating brachymystax lenok seeds

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specific Embodiment approach 1

[0006] Specific embodiment one: in the present embodiment, the method for cultivating leptospirosis seedlings is carried out according to the following steps: one, by the density of 5000 fertilized eggs of each 30cm * 45cm parallel small groove, the leptospirosis fertilized eggs are put into Hatch the larvae in the sterilized parallel tanks in the dark until the larvae float up, pick out the egg skins, dead eggs and dead seedlings during the membrane breaking process; 2. After the larvae float up, stock them at a density of 10,000 in each 45cm×2.5m parallel tank Cultivate, delay 4 days and feed the compound feed with a diameter of ≤80 μm to induce the larvae to open their mouths. Feed 6 times a day, and the daily feeding amount is 10% to 15% of the larvae body weight. After the fry weight reaches 0.5g, change to daily feeding. 4 times, the daily feeding amount is 4% to 6% of the fry's weight for cultivation, and when the fry's weight reaches 5g, change to feeding twice a day, a...

specific Embodiment approach 2

[0009] Embodiment 2: This embodiment differs from Embodiment 1 in that: the hatching temperature of the fertilized eggs in Step 1 is 8-13°C. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0010] Embodiment 3: This embodiment is different from Embodiment 1 in that: the hatching temperature of the fertilized eggs in Step 1 is 10°C. Other steps and parameters are the same as in the first embodiment.

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Abstract

The invention relates to a method for incubating brachymystax lenok seeds, which belongs to the technical field of aquaculture technology, and solves the problem of high death rate during incubation process of brachymystax lenok seeds and the problem that the incubation technologies for other fish seeds are too complex, not easy to promote, and not suitable for incubating brachymystax lenok seeds. The method comprises the following steps: positioning fertilized eggs into a horizontal tank and incubating the fertilized eggs without light until floating upward; then relaying opening, acclimatizing and feeding the fertilized eggs with compound feed, and simultaneously controlling the environmental factors such as the cultivation density until the seeds reach a weight of 10-12g. By using the method, the survival rate of brachymystax lenok seeds can be improved by above 50 percent. The method has the advantages of environment protection, simple operation, low cost and easy promotion.

Description

technical field [0001] The invention belongs to the technical field of aquatic product cultivation, and in particular relates to a method for cultivating lingon salmon seedlings. Background technique [0002] Brachymystax lenok, also known as Brachymystax lenok, is a rare indigenous cold-water fish in my country. Because of its rich nutrition, tender meat, delicious meat, no intermuscular spines, and many edible parts, it is favored by consumers and has great breeding potential. At present, there is no specific operation technology for the domestication of lentil salmon fry in China. Although lentil salmon belongs to the family Salmonidae, due to the high mortality rate of lentil salmon under the traditional salmon fry breeding mode; and its spawning time , The particularity of the digestive system development of larvae and the strong hunger resistance of larvae, the seedling cultivation technology of other fishes is not suitable for cultivating lemur salmon seedlings. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 刘洋牟振波徐革锋李永发李明
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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