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Method for breeding cross-bred 'Hulongban' fish

A technology of tiger dragon and brown-spotted grouper, which is applied in application, climate change adaptation, fish farming, etc., to achieve the effects of simple operation, easy to master the operation method and high survival rate

Active Publication Date: 2011-01-05
广东省大亚湾水产试验中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been some researches on the hybrid breeding of seawater fish at home and abroad, but there are still few seawater fishes bred by crossbreeding.

Method used

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  • Method for breeding cross-bred 'Hulongban' fish
  • Method for breeding cross-bred 'Hulongban' fish

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Experimental program
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Embodiment Construction

[0016] The specific method steps of hybridization "tiger dragon spot" breeding test are as follows:

[0017] (1) Breeding and screening of broodstock: The broodstock is usually raised in the broodstock breeding pond, fed with fresh miscellaneous fish, intensively cultivated one month before the breeding season, and fed with enhanced feed for the broodstock. Before mating, the broodstock were caught, and their traits and gonads were checked one by one. Choose healthy broodstock with no injuries or deformities on the body surface; female brown-spotted grouper requires obvious abdominal swelling and ovary development to stage IV; male saddleband grouper requires light pressure on the abdomen to have white semen flow out;

[0018] (2) Hybrid parent matching: select the individual brown-spotted grouper female as the female parent, and the saddle-banded grouper male as the male parent during mating;

[0019] (3) Oxytocin: During the grouper breeding season, inject oxytocin hormone ...

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Abstract

The invention discloses a method for breeding cross-bred 'Hulongban' fish fry. The method comprises: widely crossing blotchy rock cod male individuals serving as female parents and Epinephelus lanceolatus male individuals serving as male parents; and producing cross-bred 'Hulongban' fish fry by artificial induced spawning, insemination, incubation and juvenile fish culture. The method for breeding the 'Hulongban' fish of the invention is simple in operation and suitable for large-scale production; the survival rate of the cultured 'Hulongban' fish fry is 5 to 10 percent; the 'Hulongban' fish fry breeding survival rate is 5 to 10 percent; the culture survival rate is over 95 percent; the survival rates are much higher than those of common grouper; and thus, the method has a promising market prospect.

Description

technical field [0001] The invention relates to a method for breeding seawater fish, in particular to a method for cultivating hybrid "Tiger Banner" fry. Background technique [0002] Grouper (Epinephelus sp.) is one of the famous and valuable marine fishes in the world. Its meat is tender and delicious, its market price is high, and its market is good. In 2004, the Food and Agriculture Organization of the United Nations listed grouper, tuna and yellowtail as the three most promising farmed fish in the next 20 years. In recent years, many countries in China, Taiwan, Japan, South Korea, Southeast Asia and Oceania are actively carrying out artificial breeding of grouper. [0003] Brown-spotted grouper (Epinephelus fuscoguttatus) is a medium-sized individual in the grouper genus, and its growth rate is average. It is relatively easy to breed broodstock and seedlings. At present, the technology is relatively mature, and it is easy to obtain mature eggs or fertilized eggs throug...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张海发王云新黄国光梁伟峰欧冲辉杨少森黄培卫张磊
Owner 广东省大亚湾水产试验中心
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