Method for utilizing biofloc technology to optimize breeding of juvenile litopenaeus vannamei juvenile

A technology of biological floc and vanabin, which is applied in chemical instruments and methods, biological water/sewage treatment, application, etc., to achieve the effects of improving survival rate, reducing feeding amount and improving survival rate

Inactive Publication Date: 2017-05-31
FISHERIES RES INST OF FUJIAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, biofloc technology is not yet mature in my country, and there are related research reports on the application of biofloc technology in the growth period of fish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Put the hatched Litopenaeus vannamei nauplius into the culture unit with aquaculture water, the seedling water temperature is 31-32°C, and the nauplius feeding density is 2×10 5 ~3×10 5 Tail / m 3 The bait is mainly shrimp chips, BP powder, algae powder, and black grain powder in the early stage, and shrimp chips and Artemia nauplii in the later stage. Feeding amount in the early stage is 1~3g / m each time 3 , 2~5g / m2 in the later stage 3 , Feeding 8 times a day. The amount of feeding can be flexibly controlled according to the water color and the density of shrimp fry; the initial water intake of the nursery pond is 2 / 3 of the total water body, and the water is added daily from the late stage of the zodiac larvae. Water, daily water change 10% to 20%.

[0021] (2) Wait until the larvae develop to Z 3 During the early stage, glucose was added to the bait, and sucrose was added when it was developed to the later stage. The amount of glucose or sucrose added was 50...

Embodiment 2

[0025] (1) Put the hatched Litopenaeus vannamei nauplius into the culture unit with aquaculture water, the seedling water temperature is 31-32°C, and the nauplius feeding density is 2×10 5 ~3×10 5 Tail / m 3 The bait is mainly shrimp chips, BP powder, algae powder, and black grain powder in the early stage, and shrimp chips and Artemia nauplii in the later stage. Feeding amount in the early stage is 1~3g / m each time 3 , 2~5g / m2 in the later stage 3 , Feeding 8 times a day. The amount of feeding can be flexibly controlled according to the water color and the density of shrimp fry; the initial water intake of the nursery pond is 2 / 3 of the total water body, and the water is added daily from the late stage of the zodiac larvae. Water, daily water change 10% to 20%.

[0026] (2) Wait until the larvae develop to Z 3 At the early stage, glucose was added to the bait, and sucrose was added when it was developed to the later stage. The amount of glucose or sucrose added was 65% of...

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Abstract

The invention discloses a method for utilizing a biofloc technology to optimize breeding of juvenile litopenaeus vannamei, and relates to juvenile shrimp breeding. The method comprises the first step of putting incubated litopenaeus vannamei nauplius to a breeding unit containing breeding water to be subjected to breeding; the second step of adding a carbon source and probiotics into a body of water when the nauplius is developed to a Z2-M1 period, so that the biofloc is formed; the third step of reducing feeding amount and water exchanging amount after the biofloc is formed. The biofloc technology and an existing breeding technology are combined to be used for scale production of the juvenile litopenaeus vannamei, by using the biofloc to purify water quality and using the biofloc as a high protein fish bait for the juvenile litopenaeus vannamei, the effects of lowering water quality indexes like ammonia nitrogen, reducing the water exchanging amount and the feeding amount, and increasing the survival rate of the bred juvenile litopenaeus vannamei are reached, an ecological technical craft of breeding the juvenile litopenaeus vannamei is formed, and thus the method for utilizing the biofloc technology to optimize breeding of the juvenile litopenaeus vannamei has good ecological benefit and social benefit.

Description

technical field [0001] The invention relates to the cultivation of shrimp seedlings and belongs to the field of aquaculture, in particular to a method for optimizing the cultivation of Litopenaeus vannamei seedlings by using biofloc technology. Background technique [0002] Litopenaeus vannamei, also known as Penaeus vannamei, is native to the Pacific coastal waters of Central and South America. Since it was introduced into my country in 1988, it has gradually become the most important cultured species in the shrimp farming industry in my country. At present, the annual output of Litopenaeus vannamei in my country exceeds 1.5 million tons, accounting for about 85% of the total output of prawn farming in my country. The annual output of Litopenaeus vannamei seedlings in my country reaches 600 billion tails, and Fujian, as an important production base of Litopenaeus vannamei seedlings in China, accounts for 60% to 70% of the national total. [0003] With the rapid development...

Claims

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Application Information

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IPC IPC(8): A01K61/59C02F3/34
CPCC02F3/34C02F2103/20Y02A40/81
Inventor 杨章武杨元乙张哲李正良卓吓晃
Owner FISHERIES RES INST OF FUJIAN
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