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Crossbreeding and seedling method of odontobutis potamophila and odontobutis yaluensis

A kind of duck green sand pond snakehead, hybrid breeding technology, applied in fish farming, application, climate change adaptation, etc.

Inactive Publication Date: 2014-12-17
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

There has not been any report on the cross-breeding of the river channa and the duckling channa

Method used

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Embodiment Construction

[0019] A method for cross-breeding and seedling breeding of river snakehead female fish and duck green snakehead male fish comprises the following steps:

[0020] 1. Selection of parents: select strong individuals, no diseases, no disabilities, no parasites on the body surface, good nutritional status, and more than 1-year-old river sand pond snakehead as the female parent, the size is 45g ~ 120g; the same conditions are screened to meet the requirements The Yalu sand pond snakehead is used as the male parent, and the specification is 60g-150g.

[0021] 2. Breeding and reproductive control of broodstock: Put the male and female fishes in the indoor 60×50×40cm according to the ratio of male and female respectively for cultivation, and the breeding density is 15-25 fish / m2 per tank 3 , The dissolved oxygen is maintained above 5mg / L, the light is 600-2000Lux, the circulating micro-water flow is stimulated, and the water is changed 1-2 times a day; The water temperature of the ri...

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Abstract

The invention discloses a crossbreeding and seedling method of odontobutis potamophila and odontobutis yaluensis. The crossbreeding and seedling method comprises the steps of parent selection, breeding and reproduction regulation and control, artificial insemination and incubation, and larvae juvenile fish cultivation. A hybrid fish has good characteristics of male parent and female parent, the large-scale production of hybrid fish fries can be achieved, a new strain (breed) of odontobutis obscura is hopefully crossbred and cultivated, and accordingly economical benefits of cultivation of the odontobutis obscura of China are effectively improved.

Description

technical field [0001] The invention relates to a method for distant hybridization of fish, in particular to a method for cross-breeding and raising seedlings of fish between different species of river snakehead and duck-green snakehead, and belongs to the technical field of aquatic animal cross-breeding. Background technique [0002] Odontobutis potamophila belongs to Perciformes, Gobioidei, Odontobutidae, Odontobutis, commonly known as catfish and tiger shark , tiger head nerd, grass carp, Tubu fish, black grass bag, etc., are a relatively rare small economic fish. The common individual is about 50g, and the largest individual is 175g. It is mainly distributed in the middle and lower reaches of the Yangtze River and various tributaries along the river, the Minjiang River system, the Qiantang River system, and occasionally the Yellow River system. Because of its tender meat, delicious taste and few spines, the river snakehead is deeply loved by people in Jiangsu, Zhejiang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 尹绍武祝斐张丽娟胡亚丽
Owner NANJING NORMAL UNIVERSITY
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