A method for promoting production of rock seabream in flowing water and a method for cultivating larvae and juveniles

A method for cultivating and cultivating sea bream, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of low fertilized egg acquisition rate, difficulty in cultivating larvae and juveniles, and low seed yield, etc. The effect of low wastage rate, high body length and high survival rate

Active Publication Date: 2022-02-11
宁德市富发水产有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that in the process of breeding and production of redfish seedlings, the rate of obtaining fertilized eggs of stonefish is low, the cultivation of larvae is difficult, and the seed production is low and unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Selection of broodstock: The broodstock should be complete in size, normal in color, healthy without injury, lively in action, over 2 years old, and with a body weight of 550g or more.

[0038] Temporary rearing and cultivation of broodstock to promote maturation: After the broodstock is disinfected, enter the broodstock pond, and adopt a simulated ecological method (pay attention to conditions such as quiet, dark, water depth, water temperature, and running water) for 1 day. Broodstock density 3 / m 3 , 120 broodstock groups. The seawater used for the first time in the broodstock pool must be subjected to sedimentation, sand filtration, and the special pool is sterilized with 10ppm bleaching powder for more than 24 hours, and then neutralized with the same concentration of sodium thiosulfate and aerated for about 4 hours to keep the environment quiet. The stone bream that enters the broodstock pond can be fed with bait on the 2nd day. The bait is palatable whole oyster...

Embodiment 2

[0051] Selection of broodstock: The broodstock should be complete in size, normal in color, healthy without injury, lively in action, over 2 years old, and with a body weight of 550g or more.

[0052] Temporary rearing and cultivation of broodstock to promote maturation: After the broodstock is disinfected, enter the broodstock pond, and adopt a simulated ecological method (pay attention to conditions such as quiet, dark, water depth, water temperature, and running water) for 1 day. Broodstock density 4 / m 3 , the population remains >160 tails. The seawater used for the first time in the broodstock pool must be subjected to sedimentation, sand filtration, and the special pool is sterilized with 10ppm bleaching powder for more than 24 hours, and then neutralized with the same concentration of sodium thiosulfate and aerated for about 4 hours to keep the environment quiet. The stone bream that enters the broodstock pond can be fed with bait on the 2nd day. The bait is palatable ...

Embodiment 3

[0065] Selection of broodstock: The broodstock should be complete in size, normal in color, healthy without injury, lively in action, over 2 years old, and with a body weight of 550g or more.

[0066] Temporary rearing and cultivation of broodstock to promote maturation: After the broodstock is disinfected, enter the broodstock pond, and adopt a simulated ecological method (pay attention to conditions such as quiet, dark, water depth, water temperature, and running water) for 1 day. Broodstock density 5 / m 3 , the group keeps 200 tails. The seawater used for the first time in the broodstock pool must be subjected to sedimentation, sand filtration, and the special pool is sterilized with 10ppm bleaching powder for more than 24 hours, and then neutralized with the same concentration of sodium thiosulfate and aerated for about 4 hours to keep the environment quiet. The stone bream that enters the broodstock pond can be fed with bait on the 2nd day. The bait is palatable whole oy...

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PUM

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Abstract

The invention relates to a flowing-water type production-promoting method for barnacles and a method for cultivating larvae and juveniles, and belongs to the technical field of fish aquatic organism cultivation in aquaculture. The method for promoting production of the stone seabream flowing water according to the present invention comprises: 1) putting the sterilized broodstock into the broodstock pool to obtain domesticated broodstock; Jet flow for 15-20 days to complete broodstock mating and broodstock ovulation; 3) to raise the water level in the broodstock pond, and the floating eggs flow out from the overflow hole of the broodstock pond, and a baffle is set at the overflow port to drain the floating eggs to the overflow pipe for collection to obtain strips Stonefish eggs. The method of the invention can greatly increase the rate of obtaining fertilized eggs of the stone seabream, improve the survival rate of larvae and juveniles, and achieve the purpose of mass production.

Description

technical field [0001] The invention relates to the technical field of fish aquaculture in aquaculture, and in particular to a method for promoting the production of barnacles in flowing water and a method for cultivating larvae. Background technique [0002] Oplegnathus fasciatus, belonging to the order Perciformes, Oplegnathidae, Oplegnathus, is a temperate tropical offshore fish. Porcupine bream has beautiful body, bright color, tender meat and high nutritional value. It is a seawater fish with high economic value and ornamental value. The market price can reach as high as 300 yuan / kg. Through artificial breeding technology research, it is very hopeful that it will be developed into an emerging excellent variety for industrial farming, seawater cage culture, recreational fishery, and multiplication and release in my country. At present, research on the cultivation and reproduction technology of the broodstock of the stone seabream has been carried out in China, and a sma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/17A01K63/04
CPCA01K61/10A01K61/17A01K63/04A01K63/042Y02A40/81
Inventor 陈佳刘兴彪刘志民柯巧珍余训凯黄匡南翁华松
Owner 宁德市富发水产有限公司
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