Method for breeding hypoxia-resistant hybrid pelteobrus fulvidrus

A technology of yellow catfish and yellow catfish, applied in fish farming, application, climate change adaptation, etc., to achieve the effect of improving low oxygen resistance, growth performance, and fast growth performance

Active Publication Date: 2020-06-05
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a kind of method of breeding low-oxygen resistant hybrid yellow catfish, overcome the defect of existing yellow catfish species, improve the low-oxygen tolerance of yellow catfish, and obtain the low-oxygen-resistant yellow catfish Hybrid yellow catfish growing well

Method used

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  • Method for breeding hypoxia-resistant hybrid pelteobrus fulvidrus
  • Method for breeding hypoxia-resistant hybrid pelteobrus fulvidrus
  • Method for breeding hypoxia-resistant hybrid pelteobrus fulvidrus

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Embodiment 1

[0042] according to figure 1 The process shown for breeding low-oxygen-tolerant hybrid yellow catfish:

[0043] Step 1, in April 2011, select river yellow catfish from four geographical populations in the Pearl River system (Xijiang in Yunnan, Pearl River in Guangdong, Lijiang in Guangxi and Jinsha River in Sichuan). (female to male ratio 2:1), Guangdong Pearl River 130 (female to male ratio 2:1), Guangxi Lijiang 150 (female to male ratio 3:1) and Sichuan Jinsha River 145 (female to male ratio 3:1), the above geographical populations as the basis for selection. Full-sib families were constructed through interspecific crosses (4×4), including 16 hybrid combinations, and each combination established 6 families (a total of 96 families), including 6 Xijiang (♀)×Xijiang (♂) families, 6 1 Xijiang(♀)×Pearl River(♂) family, 6 Xijiang(♀)×Lijiang(♂) family, 6 Xijiang(♀)×Jinsha(♂) family, 6 Zhujiang(♀)×Xijiang(♂) family Family, 6 Pearl River(♀)×Pearl River(♂) family, 6 Pearl River(♀)×...

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Abstract

The invention provides a method for breeding hypoxia-resistant hybrid pelteobrus fulvidrus, and relates to the technical fields of breeding and propagation of aquatic animals. The method comprises thefollowing techniques: breeding male and female parents, carrying out matching, carrying out hypoxia stressing, screening hybrid offspring, and propagating and cultivating the hybrid offspring, and the like. Female parents are bred by virtue of a family breeding method, hypoxia-resistant families are screened by virtue of the hypoxia stressing, meanwhile, growth is considered, so that the hypoxiaresistance and growth performance of the offspring are improved; and pelteobagrus vachelli capable of rapidly growing is selected as male parents by virtue of a group breeding method. According to spawning induction technique and a propagation method provided by the embodiment of the invention, the spawning induction rate of female fish is higher than 95%, the fertilization rate is higher than 96%, and the hatching rate is higher than 94%. A first filial generation propagated by virtue of the method provided by the invention has relatively high growth speed, is hypoxia-resistant and is suitable for paddy field cultivation and long-distance transportation.

Description

technical field [0001] The invention belongs to the technical field of breeding and breeding of aquatic animals, and in particular relates to a method for breeding hypoxia-resistant hybrid yellow catfish. Background technique [0002] Driven by the country's rural policy guidance and scientific and technological progress, my country's fishery has achieved sustained and rapid development, and has realized a historic transformation from "fishing-based" to "breeding-based". In recent years, Jiangsu has been market-oriented, with high-quality, high-efficiency, ecology, and safety as the basic requirements. It has built a number of famous and high-quality aquatic product brands and industrial integration, including river crabs, crayfish, freshwater shrimps, yellow catfish, and puffer fish. , shad, etc. The output of famous, special and high-quality aquatic products accounts for more than 70% of Jiangsu's total fishery output. Yellow catfish is one of the "Top Ten Major Species" ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 强俊何杰梁明曹哲明徐跑
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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