Efficient outdoor ecological pond artificial fry breeding method for lutjanus argentimaculatus

An ecological pond and Zihong technology, which is applied in botany equipment and methods, food processing, climate change adaptation, etc., can solve the problems of unfavorable purple snapper expansion, insufficient size, and low survival rate, so as to improve the survival rate of fry And specifications, large specifications, high survival rate

Active Publication Date: 2020-05-15
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a large demand for purple snappers, and there is also a large demand for purple snapper fry. However, the existing methods for raising seedlings of purple...

Method used

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  • Efficient outdoor ecological pond artificial fry breeding method for lutjanus argentimaculatus

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A method for artificially raising seedlings in an outdoor ecological pond of an efficient purple snapper, comprising the following steps:

[0027] (1) Choose an outdoor ecological pond of 1 mu, lay volcanic rocks, gravel, vermiculite and biological ceramsite at the bottom of the pond, the mass ratio is 1:1:4:0.8, and the laying amount per square meter is 1kg;

[0028] Before the larvae open their mouths, use pure natural light to cultivate Thalassiosira, Chlorella and Chrysophylla respectively;

[0029] (2) Before the larvae open their mouths, inoculate the pond with Thalassiosira 90,000 / mL, Chlorella 40,000 / mL, and Chrysophylla 10,000 / mL. After the water quality in the pond is stable, put the purple snapper larvae To the pond, the stocking density is about 30,000 tails / mu;

[0030] (3) In the larval stage after the larvae opened their mouths, oyster larvae were fed every day, and soy milk was sprinkled. The density of the oyster larvae was 5 / mL, and the soy ...

Embodiment 2

[0034] A method for artificially raising seedlings in an outdoor ecological pond of an efficient purple snapper, comprising the following steps:

[0035] (1) Choose an outdoor ecological pond of 1 mu, lay volcanic rocks, gravel, vermiculite and biological ceramsite at the bottom of the pond, the mass ratio is 1:2:2:1.2, and the laying amount per square meter is 2kg;

[0036] Before the larvae open their mouths, use pure natural light to cultivate Thalassiosira, Chlorella and Chrysophylla respectively;

[0037] (2) Before the larvae open their mouths, inoculate the pond with 60,000 Thalassiosira sp., 60,000 Chlorella, and 30,000 Chrysophytes / mL. After the water quality in the pond is stable, put the purple snapper larvae into the pond. To the pond, the stocking density is about 30,000 tails / mu;

[0038] (3) In the larvae stage after the larvae have opened their mouths, feed oyster larvae every day, and sprinkle soy milk. The density of the oyster larvae is about 8 / mL, an...

Embodiment 3

[0042] A method for artificially raising seedlings in an outdoor ecological pond of an efficient purple snapper, comprising the following steps:

[0043] (1) Choose an outdoor ecological pond of 1 mu, lay volcanic rocks, gravel, vermiculite and biological ceramsite on the bottom of the pond, the mass ratio is 1:1.8:3:1, and the laying amount per square meter is 1.5kg;

[0044] Before the larvae open their mouths, use pure natural light to cultivate Thalassiosira, Chlorella and Chrysophylla respectively;

[0045] (2) Before the larvae open their mouths, inoculate the pond with 70,000 thalassira, 50,000 chlorella, and 20,000 golden algae / mL into the pond. After the water quality in the pond is stable, put the purple snapper larvae To the pond, the stocking density is 30,000 tails / mu;

[0046] (3) In the larval stage after the larvae opened their mouths, oyster larvae were fed every day, and soy milk was sprinkled. The density of the oyster larvae was about 7 / mL, and the s...

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Abstract

The invention provides an efficient outdoor ecological pond artificial fry breeding method for lutjanus argentimaculatus. The method comprises the following steps: (1) arranging a pond, and laying volcanic rock, gravel, vermiculite and biological ceramsite on the bottom of the pond; (2) before larva fish eats food, inoculating 60,000-90,000/mL of thalassiosira, 40,000-60,000/mL of chlorella and 10,000-30,000/mL of golden algae into the pond, and after the water quality in the pond is stable, placing the lutjanus argentimaculatus into the pond, wherein the placing density is 20,000-40,000/mu; (3) after the larva fish eats food, in the larva fish period, feeding the larva fish with oyster larvae every day, and splashing soybean milk in the pond, wherein the density of the oyster larvae is 5-8/mL; (4) in the juvenile fish period, feeding juvenile fish with rotifers and Moina mongolica daday, wherein the density of the rotifers is 3-5/mL, the density of the Moina mongolica daday is 50-80/L, and meanwhile, splashing soybean milk and bean dregs in the pond at the same time; and (5) in the juvenile fish period, feeding the juvenile fish with the rotifers and heliozooid, wherein the density of the rotifers is 8-10/mL, the density of the heliozooid is 10-25/mL, and harvesting the lutjanus argentimaculatus after keeping breeding for 20-40 days. The survival rate of harvested lutjanus argentimaculatus fries is high, the specification is large, and variation is reduced.

Description

technical field [0001] The invention relates to the technical field of purple snapper seedling cultivation, in particular to an efficient method for artificial seedling cultivation of purple snapper in an outdoor ecological pond. Background technique [0002] The purple snapper (Lutjanus argentimaculatus) is a large-scale economic fish in the middle and lower layers of warm water shallow seas. It is distributed in the Indian Ocean, the central and western Pacific Ocean. Shallow waters with sandy bottom. According to reports, there are more than 103 species of snappers living in various oceans of the world, most of which are economic species, and the purple snapper is considered to be one of the species with the most economic value and development prospects in this family. Purple snapper is rich in nutrition, delicious, rich in protein, DHA and EPA. It is a high-quality marine fish with a large market demand. There is a large demand for purple snapper, and there is also a l...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01G22/00A01G22/60A23K50/80A23K10/20A23K10/30A23K10/37
CPCA01K61/10A01G22/00A01G22/60A23K50/80A23K10/20A23K10/30A23K10/37Y02A40/818Y02A40/81Y02P60/87
Inventor 蔡有森蔡春有蔡四川蔡建顺黄春仁李伟蔡金泉蔡惠明张国庆蔡智怀陈猛猛吴光灿陈艺斌刘赐福李伟峰罗磊蔡艺新王景宝
Owner HAINAN CHENHAI AQUATIC CO LTD
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