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Cultivating method for offspring seeds of spotted trout

A breeding method and technology of spotted trout, which is applied in the field of fish farming, can solve problems such as lack of experience in breeding spotted trout seedlings, and achieve the effects of reducing breeding costs, easy promotion, and bright flesh color

Inactive Publication Date: 2013-09-04
MARICULTURE INST OF SHANDONG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, so far, my country lacks experience in artificial hatching and seed cultivation of spotted trout, and it is expected that a technical scheme for a seedling cultivation method of spotted trout will be produced as soon as possible.

Method used

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Embodiment Construction

[0025] A seedling cultivation method of spotted trout, said method is carried out according to the following steps:

[0026] ⑴Egg transportation of spotted trout

[0027] Usually, eyed eggs are transported from abroad to my country. Eyed eggs are transported by dry method at low temperature, and the transportation temperature is 4-6°C. At this time, the accumulated temperature of eyed eggs is 245°C·d. After the arrival, open the package, put the eyed eggs into fresh water at 6°C for 30 minutes, and then gradually increase the water temperature to 10°C.

[0028] ⑵Hatching of eyesight eggs

[0029] Eye-catching eggs will be disinfected before hatching to eliminate the pathogens carried, such as bacteria, viruses, parasites, etc. Eye-catching eggs are soaked in pvp-I available iodine 100mg / L for 5-10 minutes, rinsed with clean water for 10 minutes repeatedly, and then put into an upflow hatching bucket for running water incubation. The hatching water temperature is 10-12°C, th...

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Abstract

The invention provides a cultivating method for offspring seeds of spotted trout. By the cultivating method, a large quantity of high-quality and healthy spotted trout fries can be acquired, and survival rate of juvenile fishes is high, so that cultivation popularization and factorization of the spotted trout can be realized. The cultivating method includes the following steps: (1), transporting eyed eggs of the spotted trout, (2), incubating the eyed eggs, (3), cultivating the fries at an early stage, (4), cultivating the fries at a late stage, (5) cultivating advanced fries, and (6), cultivating the juvenile fishes. By the cultivating method, incubation and cultivation conditions for the eyed eggs of the spotted trout are acquired; experiments show that incubation rate of the eyed eggs of the spotted trout can be increased to 97%, and the survival rate of the fries can reach 92%; and through the cultivating method, the fries grow quickly, cultivation cycle can be shortened, and cultivation cost can be reduced.

Description

technical field [0001] The invention relates to fish culture, in particular to a method for cultivating spotted trout seedlings. Background technique [0002] Speckled trout (Oncorhynchus mykiss), commonly known as the noble fish, is a kind of salmon family fish. It is named after the whole body is covered with spots. It is a cold-water anadromous fish. Steelhead trout is a new breed of rainbow trout, which has excellent characteristics such as stress resistance, fast growth, and high temperature resistance. In 2010, it was jointly introduced to my country by Shandong Mariculture Research Institute and Qingdao Fuka Marine Biotechnology Co., Ltd. Spotted trout has a wider temperature range than other salmon species. Its survival temperature is 0-24°C, the suitable water temperature is 8-21°C, and the optimum growth water temperature is 10-18°C; It can survive in the range of salinity, so it can be cultured in fresh water and sea water. Speckled trout has strong disease resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 菅玉霞郭文潘雷高凤祥胡发文张少春李莉王雪
Owner MARICULTURE INST OF SHANDONG PROVINCE
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