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Orienting mating and breeding method for Ictalurus punctatus

A technology for channel catfish and directional mating, which is applied in fish farming, application, climate change adaptation, etc., can solve problems affecting the quality of offspring and easily causing inbreeding, and achieve the effect of preventing species degeneration and improving economic benefits

Inactive Publication Date: 2009-07-15
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that channel catfish mainly adopts natural mating and breeding method to breed, which easily causes inbreeding and directly affects the quality of offspring, and to invent a method for directional mating and breeding of channel catfish to solve the problem of genetic selection of channel catfish The key technical links of production, so as to carry out the purposeful development and breeding of improved varieties, and improve the economic traits of offspring

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  • Orienting mating and breeding method for Ictalurus punctatus
  • Orienting mating and breeding method for Ictalurus punctatus

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 , 2 shown.

[0024] A method for directed mating and breeding of channel catfish, comprising the following steps:

[0025] First of all, one channel catfish for directional mating is selectively matured, each with an individual length of 40-60 cm, and one channel catfish for directional mating is placed in a directional ovipositor (such as figure 1 Shown), targeted refers to the offspring of non-inbreeding should be selected, the directional ovipositor mainly consists of a water container 1 (can use large tanks, cement pools and other containers with cover or without cover, when cover should ensure ventilation) and an inner cylinder 3 (preferably made of ceramic materials), the inner bottom of the water container 1 is equipped with a water-permeable cushion 2, and the two ends of the inner cylinder 3 are connected and placed o...

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Abstract

The invention relates to a directional hybridization propagation method of Ictalurus punctatuses. The method mainly comprises the following steps: step 1, the Ictalurus punctatuses are put in a copulatory device, and brightness and noise of the copulatory device are controlled; and step 2, laid eggs are put in single hatching troughs for hatching so as to obtain ideal Ictalurus punctatus fries. The invention is beneficial to improve the quality of offspring and prevent a degeneration phenomenon due to close propagation from generating.

Description

technical field [0001] The invention relates to a method for breeding edible fish, in particular to a method for mating and breeding of channel catfish, in particular to a method for directional mating and breeding of channel catfish. Background technique [0002] Channel catfish (Ictalures Punctatus), also known as American catfish and channel catfish, belongs to Siluriformes and Catfish family. It is native to the United States. It has tender and delicious meat, wide temperature range, fast growth speed, strong disease resistance and high feed conversion rate. It is easy to form the characteristics of seedling breeding, breeding, feed, and processing industrial production. It is the species with the most mature breeding technology and the highest breeding output in the United States. The breeding area is about 60,000 hectares and the breeding output is about 300,000 tons. Since it was introduced in my country in the 1980s, channel catfish has been extended to more than 20 ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 边文冀蔡永祥陈校辉彭建安秦钦王明华张明生张晓伟史阳白朱锡和王宗华
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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