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Grading and optimizing method for out of water enduring performance of marsupenaeus japonicas shrimp seed

A technology of shrimp fry and grade, applied in fish farming, application, climate change adaptation, etc.

Active Publication Date: 2016-05-04
ZHEJIANG OCEAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no evaluation in this field on the impact of dry dew on the quality of Penaeus japonicus, and there is no report on the screening method for Penaeus japonicus resistant to dry dew.

Method used

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  • Grading and optimizing method for out of water enduring performance of marsupenaeus japonicas shrimp seed
  • Grading and optimizing method for out of water enduring performance of marsupenaeus japonicas shrimp seed
  • Grading and optimizing method for out of water enduring performance of marsupenaeus japonicas shrimp seed

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Embodiment

[0020] A method for grading and optimizing the dry dew resistance of Penaeus japonicus seedlings according to the present invention comprises the following steps:

[0021] (1) First randomly select at least 30 or more shrimp seedlings from a certain seedling pond, and after temporarily raising them for 24 hours in an environment with a water temperature of 17.0-19°C and a pH of 7.9-8.3, use a microscope to measure the corresponding The following shape ratio value: head and breastplate length / full length C 4 ;Tail fan length / total length C 11 ;Height of carapace / length of carapace C 15 ;Abdominal segment height / first abdominal segment length C 16 ;

[0022] (2) C measured in step (1) 4 、C 11 、C 15 and C 16 The corresponding value is substituted into the following calculation formula: the selection model for resistance to dry dew is: P=(6503.274C 4 -9362.831C 11 +6388.296C 15 +1595.804C 16 -2938.016) / (6390.726C4 -9133.015C 11 +6287.753C 15 +1610.935C 16 -2921.642);...

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Abstract

Provided is a grading and optimizing method for out of water enduring performance of marsupenaeus japonicas shrimp seeds. The method comprises: substituting the following form scale value of a juvenile prawn into the following computational formula: P=(6503.274C4-9362.831C11+6388.296C15+1595.804C16-2938.016) / (6390.726C4-9133.015C11+6287.753C15+1610.935C16-2921.642); averaging the P values of all shrimp seeds, to obtain an average P value of each pond of shrimp seeds, and according to the average P value, determining values of out of water enduring performance of the shrimp seeds.

Description

technical field [0001] The present invention relates to a kind of optimal method of high-quality Penaeus japonicus in the aquaculture industry, specifically the ability to withstand dry dew (dry dew refers to the aquatic organisms in mariculture when the tide is low or other reasons (such as changing the water in the pond or transplanting) , transportation, etc.) and exposed to the air (out of water), can survive after rehydration, the exposure time determines the strength of the resistance to dry dew), the preferred method of Penaeus japonicus, belongs to the shrimp aquatic biological breeding technology in agricultural aquaculture field. 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. Indigenous species are m...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 沈伟良王志铮斯烈钢申屠基康任夙艺袁向阳蒋宏雷
Owner ZHEJIANG OCEAN UNIV
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