Artificial cultivation and domestication method for hucho taimen seedling

A technology for artificially cultivating salmon, which is applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of unsuitable salmon and other problems, and achieve good quality, low cost and fast growth of domesticated seedlings Effect

Inactive Publication Date: 2008-07-16
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no specific operation technology for the domestication of juvenile salmon juveniles in China. Although the salmon belongs to the family Salmonidae, its breeding time is different from that of most short-day salmonids that spawn in autumn and winter. The spawning t

Method used

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Experimental program
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Effect test

specific Embodiment approach 1

[0010] Specific embodiment one: the method for artificially cultivating and domesticating the salmon fry of the present embodiment is completed by the following four periods:

[0011] The first period, hatching management period: the larvae of the floating juveniles are reared in the hatching parallel tanks, and the hatching tanks are washed 2 to 10 times with salt water with a mass concentration of 1% every day, and the dead eggs and dead eggs in the hatching parallel tanks are picked out. Seedlings and eggs;

[0012] The operation process should be gentle to avoid damaging the yolk sac of the larvae and causing death.

[0013] The second phase, the feeding period of zooplankton: put the floating juveniles into parallel tanks after disinfection for 4 to 7 days, and feed zooplankton 6 to 8 times a day;

[0014] The floating juveniles are scooped out from the hatching parallel tank with a vessel and placed in the parallel tank. Because the juvenile salmon fry are wild, they t...

specific Embodiment approach 2

[0017] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the hatching water temperature of the first phase is 5 ℃~13 ℃, and the stocking density in each 30cm×45cm hatching parallel tank is 20,000 tails. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0018] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the water temperature during the domestication period of the second phase and the third phase is 8~15 ℃, and the stocking density of each 45cm×2.5m parallel tank is 6000~8000 tails, Parallel grooves are put into clear water and the water depth is 0.8 meters. Other steps are the same as in the first embodiment.

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Abstract

An artificial culture and domestication method for a fingerling of Hucho taimen relates to the aquatic product culturing field which solves the problem that the current culturing technology is not suitable for the fingerling of Hucho taimen and can be finished by the following four phases: 1. cleaning a hatching slot 2 to 10 times a day and picking out dead eggs, dead fingerling and egg skin; 2. feeding zooplanktons for 4 to 7 days and 6 to 8 times one day; 3. feeding the zooplanktons and water earthworms for the first 3 to 5 days; then feeding the water earthworms for 4 to 5 times a day for the next one week; then feeding massive materials once every morning for three weeks and feeding the water earthworms in the daytime and at night for 4 to 5 times a day; 4. feeding artificial feedstock in the morning and massive materials in the daytime for 2 to 3 times a day and the water earthworms at night during the first 2 to 3 weeks; and feeding the artificial feedstock for 3 to 4 times a day by every 2.5 to 3 hours for one time and feeding the water earthworms at night after the next 2 to 4 weeks; feeding the artificial feedstock four times a day for the last 15 days and finishing the domestication work. The domestication method of the invention has the advantages of simple and convenient operation, low cost and good domestication fingerling quality.

Description

technical field [0001] The invention relates to the technical field of aquatic product cultivation, in particular to a method for artificially cultivating and domesticating jellyfish seedlings. Background technique [0002] Zheluo salmon, whose English name is Hucho taimen, belongs to the family Salmonidae and belongs to the genus Zheluo. It is the fastest growing and largest salmonid fish, weighing several hundred catties. Zheluo salmon is a famous and precious cold-water fish in my country. It has tender meat and delicious taste. It is very popular among the masses and has high economic value. Zheluo salmon has a distant relationship with the main cultured species of salmon and trout in my country. It has strong disease resistance to the current salmon and trout epidemic, so it has the advantages of easy to master the breeding technology. At present, there is no specific operation technology for the domestication of juvenile salmon juveniles in China. Although the salmon ...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K50/80
CPCY02A40/81
Inventor 尹家胜王丙乾徐伟匡友谊
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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