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Method for obtaining high quality fertilized egg of scophthatmus maximus

A technology of turbot and fertilized eggs, applied in fish farming, application, climate change adaptation, etc., can solve the problems that have not been raised, obtain high-quality fertilized eggs comprehensive technology, and achieve the effect of improving quality

Inactive Publication Date: 2005-08-03
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned studies all focused on the biochemical composition of eggs and embryonic development, but did not propose comprehensive techniques on how to obtain high-quality fertilized eggs

Method used

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  • Method for obtaining high quality fertilized egg of scophthatmus maximus

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0018] Turbot is a newly introduced high-quality mariculture species, which has developed rapidly, but the technology is not yet perfect. During the seed production of turbot, the quality of eggs and the fertilization rate are extremely unstable, and the fertilization rate is less than 10% when it is low, which seriously affects the production of turbot seed. Through the adoption of comprehensive measures, the quality of turbot eggs and fertilized eggs was improved, and the fertilization success rate was 89.6%.

[0019] Describe technical content of the present invention in detail below by embodiment:

[0020] This study was carried out at the seawater fish breeding test site in Penglai City, Shandong Province, and comprehensive technical measures were implemented. The specific process is as follows:

[0021] Firstly, the cultivation of turbot broodstock and the method of artificial egg insemination were determined, and then the large-scale breeding experiment of broodstock c...

Embodiment 1

[0022] Embodiment 1, the cultivation of turbot broodstock and the determination of ovum collection and insemination method:

[0023] 1. Determination of broodstock breeding methods:

[0024] A total of 40 broodstock of turbot (Scophthalmus maximus L.) were selected in the experiment, and they were divided into 4 different experimental groups, with 4 females and 6 males in each group. There are 3 parallels in each group. The broodstock is the preferred healthy turbot with normal body color. The back of the normal body color turbot is blue-brown with bony protrusions, and the ventral surface is smooth and white. Age of broodstock: Both female and male are 3 years old. The average size is 2650±12.0g in weight and 45±4cm in total length. Placed in 12 20m3 cement ponds for flowing water aerated culture, the water for cultivation is ground seawater and natural seawater, mixed with sand after filtration, the annual water quality changes are: DO>6.0mg / L, pH=7.8-8.2, S=30-32, T=8-1...

Embodiment 2

[0095] Embodiment two, carry out the large-scale breeding test of broodstock cultivation and artificial insemination.

[0096] 240 broodstock of turbot (Scophthalmus maximus L.), which are preferably healthy turbot with normal body color. Age of broodstock: Both female and male are 3 years old. The average size is 2700±15.0g in weight and 46±4cm in total length. Placed in 8 20m3 cement ponds for flowing water aerated culture. The water used for culture is underground seawater and natural seawater, which are mixed with sand after filtration. The changes in water quality throughout the year are: DO>6.0mg / L, pH=7.8-8.2, S=30-32, T=8-18°C.

[0097]Feed and feeding of broodstock: The feed of broodstock is a prepared artificial compound feed, which is a semi-moist pellet feed prepared from the following feed materials and dosage (in 100 kg of ingredients): 60 kg of fresh defatted fish meal, 10 kg of soybean meal , 10 kg of peanut meal, 4 kg of feed yeast, 2 kg of compound multidi...

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Abstract

The method of obtaining high quality fertilized egg of scophthatmus maximus includes parent fish cultivation and artificial egg collecting and insemination. The parent fish cultivation includes selecting parent fishes and cultivation condition, selecting feed and raising, and controlling water temperature and light illumination conditions; and the artificial egg collecting and insemination includes artificial egg collection and artificial insemination. The present invention is one complete comprehensive operation technology and has high fish egg survival rate and successive fertilization rate to obtain high quality fertilized egg of scophthatmus maximus.

Description

Technical field: [0001] The invention belongs to the breeding technology of turbot, and relates to a method for obtaining high-quality fertilized eggs of turbot during broodstock cultivation and egg collection and fertilization. Background technique: [0002] Since turbot was introduced to China in 1992, it has achieved success in seed breeding and breeding, and the breeding industry of turbot has been formed in the northern coast of my country. However, the quality of turbot spawning is unstable and the quality of eggs is poor. Seriously restrict the development of turbot industry. How to obtain high-quality fertilized eggs is an urgent problem to be solved. Before the present invention is made, there is no relevant report on the comprehensive technology for obtaining high-quality fertilized eggs of turbot. There are research reports on the embryonic development of capturing turbot fertilized eggs in the world, but how to obtain high-quality fertilized eggs does not provid...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 马爱军陈超雷霁霖庄志猛王印庚
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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