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Grouper large scale total-artificial breeding method

A grouper, artificial technology, applied in fish farming, climate change adaptation, application and other directions, can solve the problems of low survival rate of seedlings, unsuitable bait, lack of nutrients, etc. high quality effect

Active Publication Date: 2014-01-08
NINGDE NANHAI AQUATIC PRODS TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, in the grouper nursery technology, the changes in the water environment factors of the nursery, the unsuitable bait at the opening stage of the larvae when the endogenous nutrition is converted to the exogenous nutrition, and the lack of nutrients in the long spine period and the spine harvest period can all lead to high mortality. rate; local hypoxia due to high fry density and juvenile and juvenile fish killing each other are also important reasons for the low survival rate of fry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1 Grouper standard nursery room and supporting facilities

[0030] 2 Broodstock

[0031] 2.1 Parent source

[0032] Choose wild broodstock or farmed adult fish with excellent biological properties as the broodstock. The body is complete, strong, disease-free (no symptoms of virus or bacterial infection), no injury, no deformity, strong vitality, good food intake, spot-banded grouper, oblique-banded grouper 、 Red spot grouper and Dongxing grouper weigh more than 1.0kg, and saddle band grouper weigh more than 5.0kg. The ratio of female to male is 2:1. The artificially raised grouper broodstock is controlled within three generations.

[0033] 2.2 Cultivation 2.2.1 Cultivation conditions

[0034] Broodstock cultivation can be carried out in standard grouper nursery rooms or cages. In the broodstock pond in the grouper standard nursery room, the water depth is more than 2.0m, and the temperature control, light control and aeration facilities are complete and easy to op...

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PUM

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Abstract

The invention discloses a grouper large scale total-artificial breeding method. The method comprises the steps of parent cultivation, artificial reproduction, offspring seed production, leaving pond of offspring seeds, and temporary rearing in a net cage. The grouper large scale total-artificial breeding method is suitable for seedling cultivation of orange-spotted groupers, or saddletail groupers, or giant groupers, or Hong Kong grouper, or East Star Groupers. The grouper large scale total-artificial breeding method solves the problem that the death rate of groupers in a current seedling cultivation technology is high, and broad prospect of scale development of grouper cultivation is achieved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for large-scale artificial breeding of grouper. Background technique [0002] Grouper, Epinephelus drummondhayi, also known as grouper, carp, and cross fish, belongs to the order Perciformes, and is a large and medium-sized marine fish in warm water. Grouper is rich in nutrition, tender and white, similar to chicken, known as "sea chicken". It is a low-fat, high-protein high-quality edible fish. A must-have dish for a feast. There are 12 species of grouper distributed along the coast of Fujian, among which the more common species with higher economic value are red-spotted grouper, salmon-spotted grouper, cloud-spotted grouper and net-spotted grouper. [0003] Groupers are hermaphroditic and have the characteristics of sex conversion. They are all females at birth, and they will turn into males after adulthood, that is, all females at the first sexual m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谢友亮阮经元周瑞发徐守文夏道演周绍锋阮经盛
Owner NINGDE NANHAI AQUATIC PRODS TECH
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