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A Classification and Optimization Method of Anti-flow Performance of Penaeus japonicus Postlarvae

A technology of shrimp fry and grade, applied in application, climate change adaptation, fish farming, etc., can solve problems such as useless screening method of Japanese saccharomyces prawns, no impact on evaluation, etc.

Active Publication Date: 2018-12-25
ZHEJIANG OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, this field has not evaluated the impact of water flow velocity on the quality of Penaeus japonicus, and there is no report on the screening method for Penaeus japonicus that is resistant to flow velocity

Method used

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  • A Classification and Optimization Method of Anti-flow Performance of Penaeus japonicus Postlarvae
  • A Classification and Optimization Method of Anti-flow Performance of Penaeus japonicus Postlarvae
  • A Classification and Optimization Method of Anti-flow Performance of Penaeus japonicus Postlarvae

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Embodiment

[0021] A kind of grading and optimization method of anti-flow performance of Penaeus japonicus seedlings of the present invention comprises the following steps:

[0022] (1) Randomly select 30 or more shrimp juveniles from each pool of Penaeus japonicus nursery ponds, and measure the following morphological ratio indicators for each tail of shrimp juveniles to be tested in each pond under an anatomical microscope: length of first antennal peduncle / full length C 1 ;Eye diameter / full length C 3 ; third abdominal segment length / total length C 7 ;Forehead Sword Length / Head Breastplate Length C 13 ;

[0023] (2) C measured in step (1) 1 , C 3 , C 7 , C 13 The corresponding value is substituted into the following calculation formula: P=(9562.935C 1 +35470.811C 3 +19125.274C 7 +4477.221C 13 -3162.925) / (9791.617C 1 +34472.473C 3 +18545.578C 7 +4522.143C 13-3140.599); taking the shrimp seedlings in the same pond as a group, the P values ​​obtained by each shrimp seedling ...

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Abstract

The invention relates to a flow velocity resistance grading and optimal-selection method for juvenile Marsupenaeus japonicus. The method comprises the steps: determining C1, C3, C7 and C13 corresponding values of each juvenile Marsupenaeus japonicus, and substituting the corresponding values into a computing formula as follows: P=(9562.935C1+35470.811C3+19125.274C7+4477.221C13-3162.925) / (9791.617C1+34472.473C3+18545.578C7+4522.143C13-3140.599); and averaging obtained P values of each juvenile Marsupenaeus japonicus so as to obtain the average P value of juvenile Marsupenaeus japonicus of each pond, judging the quality grade of the juvenile Marsupenaeus japonicus according to the average P value, and screening out high-quality juvenile Marsupenaeus japonicus with high flow velocity resisting capability.

Description

technical field [0001] The invention relates to a method for optimizing high-quality seedlings of Penaeus japonicus in aquaculture industry, in particular to a method for optimizing Penaeus japonicus capable of resisting flow velocity, and belongs to the technical field of aquaculture of shrimps in agricultural aquaculture. Background technique [0002] Japanese sac shrimp (Marsupenaeus japonicus), also known as Japanese prawn, commonly known as "bamboo shrimp", "flower shrimp", etc., belongs to Arthropoda, Crustacea, Decapod order, and Penaeidae. It is widely distributed in the waters south of the Yangtze River Estuary in my country. It is an important aquatic product for traditional marine cultured shrimp species and export earnings in my country. Because of its bright body color, delicious meat, high nutritional and economic value, rapid growth, strong stress resistance, and suitable for long-distance dry transportation of live shrimp, since the mid-1980s when my country s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59
CPCY02A40/81
Inventor 申屠基康王志铮斯烈钢沈伟良任夙艺蒋宏雷
Owner ZHEJIANG OCEAN UNIV
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