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Method for inducing hucho taimen young fishes to open mouths and to be domesticated

A technology for juvenile salmon and juveniles, which is applied in the field of inducing juvenile salmon to open mouth and domestication, can solve the problems of pollution, lack of palatability and wide sources of juvenile salmon, and achieve short domestication time, easy preservation, The effect of a wide range of sources

Active Publication Date: 2015-07-15
BEIJING FISHERIES RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method of inducing juvenile salmon to open mouth and domesticate, to solve the problem of lack of conventional bait with strong palatability, wide source, easy preservation and no disease source pollution in the large-scale domestication of juvenile salmon

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  • Method for inducing hucho taimen young fishes to open mouths and to be domesticated

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Embodiment 1

[0035] An embodiment of the present invention provides a method for inducing juvenile salmon mouth opening and domestication. Specifically, the method includes three different domestication periods, and the three different domestication periods can adopt the following specific operation methods:

[0036]Floating management period (Phase 1): After the juvenile salmon floats completely, stabilize it for 1 day, then use a 280-mesh sieve to pour the juveniles into a sterilized circular hatching tank with a radius of 1m. 0.20m, the stocking density of Jerome salmon juveniles is about 6,000 fish / tank, and the domestication water temperature is about 11°C.

[0037] Lure feeding period (second phase): The lure feeding period is divided into three feeding stages. In the first feeding stage, the imported salmon and trout feed (Northern Omar) and Antarctic shrimp powder are mixed at 2:1 to directly lure Food was fed, 10 times a day, and fed for 4 days. In the second feeding stage, the s...

Embodiment 2

[0040] Another embodiment of the present invention provides the method of inducing juvenile salmon mouth opening and domestication, which can adopt the following specific operation methods:

[0041] Floating management period (Phase 1): After the juvenile salmon floats completely, stabilize it for 2 days, then use a 320-mesh sieve to pour the juveniles into a sterilized circular hatching tank with a radius of 1.5m. The water depth is 0.25m, the stocking density of juvenile salmon is about 8000 / tank, and the domestication water temperature is about 14℃.

[0042] Feeding period (second phase): The feeding period is divided into three feeding stages. In the first feeding stage, the imported salmon and trout feed (Northern Omar) and Antarctic shrimp powder are mixed at 3:1 to directly attract Food was fed, 12 times a day, and fed for 5 days. In the second feeding stage, the salmon and trout feed was mixed with Antarctic shrimp powder at a ratio of 4:1, and the feed was directly i...

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Abstract

The invention discloses a method for inducing hucho taimen young fishes to open mouths and to be domesticated. The method includes the steps: stabilizing the young fishes for 1-2 days and then pouring the young fishes into a disinfected hatching tank by a bolting silk after the young fishes completely float in a floating management period; mixing trout feed and krill powder according to the ratio of 2-3:1, feeding the young fishes for 4-5 days, changing the mixing ratio into 3-4:1, feeding the young fishes for 3-4 days, changing the mixing ratio into 6-8:1 and feeding the young fishes for 2-3 days in a food calling and feeding period; feeding the young fishes with 0.6-0.8mm trout feed for 3-4 days at a first stage, training the young fishes in scrambling for taking food, feeding the young fishes for 3-4 days at a second stage and training the food intake rhythm of the young fishes scrambling for pure total artificial feed in a total artificial feed feeding period. The method can solve the problem that large-scale domestication of the hucho taimen young fishes lack easily preserved conventional baits with a wide source and high palatability and without pathogenic pollution.

Description

technical field [0001] The invention relates to aquatic product cultivation technology, in particular to a method for inducing opening and domesticating juvenile salmon. Background technique [0002] Hucho taimen (Pallas) belongs to the Salmonidae, Salmonidae, and the genus Pallas. It is a rare cold-water fish in my country. The meat quality of fish fillets is better than that of common rainbow trout. It tastes delicious, grows fast, and is large. It is one of the few large-scale freshwater economic fishes that can grow to hundreds of catties. At present, domestic juvenile salmon domestication mostly adopts the mode of fresh bait+common salmon and trout feed (as disclosed in Chinese Patent Publication No. CN101218902A, a method for artificially cultivating and domesticating juvenile salmon fry adopts zooplankton, Water earthworms and artificial feed are domesticated in stages), and a small part is directly domesticated with common salmon and trout juvenile feed (such as the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A23K1/18A23K1/10A23K10/22A23K50/80
CPCY02A40/81
Inventor 杨贵强王占全袁丁徐绍刚贺杰付海利杨晓飞
Owner BEIJING FISHERIES RES INST
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