Artificial breeding method for Lethrinus nebulosus Forskal

A naked-cheek seabream and artificial technology, which is applied to the field of artificial seedlings of the star-spotted sea-cheek seabream, can solve the problems of long growth cycle, low survival rate, poor meat quality, etc., and achieve the effects of promoting absorption, rapid growth and development, and high nutritional value.

Active Publication Date: 2019-07-19
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the culture technology of star-spotted bream is not yet mature, resulting in low survival rate, long growth cycle, poor meat quality, etc.

Method used

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  • Artificial breeding method for Lethrinus nebulosus Forskal

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Effect test

Embodiment 1

[0024] A method for artificially raising seedlings of star-spotted bream, comprising the following steps:

[0025] (1) Setting of cultivation pool

[0026] Choose a cultivation pool with an area of ​​3 acres, a flat ground, a pool depth of more than 3 meters, and a water storage depth of more than 2.5 meters. The inner slope around the pool is built with red bricks, the surface is plastered with cement mortar, the bottom of the pool is sandy loam, the water inlet and outlet are smooth, and the four corners of the pool are diagonal Aerators are installed on the line, and the stocking density of larvae is 4000 fish / m 2 ;

[0027] (2) Water quality management in cultivation ponds

[0028] Keep the transparency of the nursery pond at 45cm, adjust it by pumping seawater, change the water every 3 days, control the water temperature at 25°C, the pH value at 6.0, the dissolved oxygen at 3mg / L, and spray 0.5×10 photosynthetic bacteria every 7 days. 9 CFU / mL, nitrifying bacteria 1.8×...

Embodiment 2

[0038] A method for artificially raising seedlings of star-spotted bream, comprising the following steps:

[0039] (1) Setting of cultivation pool

[0040] Choose a cultivation pool with an area of ​​5 acres, a flat ground, a pool depth of more than 3 meters, and a water storage depth of more than 2.5 meters. The inner slopes around the pool are built with red bricks, the surface is plastered with cement mortar, the bottom of the pool is sandy loam, the water inlet and outlet are smooth, and the four corners of the pool are diagonal Aerators are installed on the line, and the stocking density of larvae is 8000 fish / m 2 ;

[0041] (2) Water quality management in cultivation ponds

[0042] Keep the transparency of the nursery pond at 60cm, adjust by pumping seawater, change the water every 5 days, control the water temperature to 30°C, the pH value to 9.0, the dissolved oxygen to 5 mg / L, and spray 1×10 photosynthetic bacteria 3 times every 10 days. 9 CFU / mL, nitrifying bacter...

Embodiment 3

[0052] A method for artificially raising seedlings of star-spotted bream, comprising the following steps:

[0053] (1) Setting of cultivation pool

[0054] Choose a cultivation pool with an area of ​​4 acres, a flat ground, a depth of more than 3 meters, and a water storage depth of more than 2.5 meters. The surrounding slopes of the pool are built with red bricks, and the surface is plastered with cement mortar. The bottom of the pool is sandy loam, the water inlet and outlet are smooth, and the four corners of the pool are diagonal Aerators are installed on the line, and the stocking density of larvae is 6000 fish / m 2 ;

[0055] (2) Water quality management in cultivation ponds

[0056] Keep the transparency of the nursery pond at 50cm, adjust by pumping seawater, change the water every 4 days, control the water temperature at 28°C, the pH value at 7.0, the dissolved oxygen at 4mg / L, and spray 0.8×10 photosynthetic bacteria twice every 8 days 9 CFU / mL, nitrifying bacteria...

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Abstract

The invention provides an artificial breeding method for Lethrinus nebulosus Forskal. The artificial breeding method includes the steps: breeding pond setting; breeding pond water quality management;aerator management; larva fish three-stage breeding. The survival rate of fries can reach 90% under the condition of artificial breeding, fish bodies are healthy and strong, fat content is low and lower than 10%, the average body length reaches 40mm, selenium enrichment quantity reaches 1.5mg / kg or more, the Lethrinus nebulosus Forskal rapidly grows and is short in period, fresh and tender in texture and fresh and crispy in taste, Lethrinus nebulosus Forskal offspring seeds can be bred on a large scale, large-scale breeding requirements are met, and economic benefits and ecological benefits can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of aquatic cultivation, in particular to a method for artificially raising seedlings of the star-spotted bream. Background technique [0002] Lethrinus nebulosus belongs to the class Osteichthyes, order Perciformes, superfamily Percoidae, family Lethrinidae, and genus Le-thrinus. Star-spotted bream is mainly distributed in the South China Sea in China, and Hainan Province has a large output. It is one of the catches of bottom trawling fishery in Hainan, Guangdong, Guangxi and other provinces. It is also a high-quality economical edible fish with rich nutrition and has become another excellent species in mariculture. However, at present, the culture technology of star-spotted bream is not yet mature, resulting in low survival rate, long growth cycle and poor meat quality. Contents of the invention [0003] In view of this, the present invention proposes a method for artificially raising seedlings of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K10/30A23K10/37A23K20/163A23K50/80
CPCA01K61/10A23K50/80A23K10/30A23K10/37A23K20/163Y02A40/818Y02A40/81Y02P60/87
Inventor 蔡建顺蔡春有蔡有森黄春仁蔡镇辉蔡四川蔡惠明蔡金泉
Owner HAINAN CHENHAI AQUATIC CO LTD
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