Method for improving survival rate of juvenile abalones in bait transferring period

A technology of survival rate and bait transfer, applied in the field of factory aquaculture, can solve the problems of poor feeding, mechanical damage and high mortality, and achieve the effect of reducing the risk of bacterial infection, low cost and simple operation.

Active Publication Date: 2019-11-22
威海长青海洋科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new, green and pollution-free breeding method that can significantly improve the survival rate of juve

Method used

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  • Method for improving survival rate of juvenile abalones in bait transferring period

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of XS1412C strain fermentation broth:

[0023] Pick a single colony to inoculate the 2216E culture solution, shake and culture at 26°C for 6-8 hours, inoculate the fermentation culture solution with 3% inoculation amount, and ferment at 30°C for 12-24 hours, and the bacterial concentration reaches 1×10 3 -1×10 8 cfu / mL is sufficient.

[0024] Preparation of chitosan-oligosaccharide solution: 10g chitosan was dissolved in 100mL 0.5% acetic acid solution; 35g low-viscosity sodium alginate was dissolved in 500mL seawater, and 30mL 1×10 7 -1×10 8 cfu / mL XS1412C strain fermentation broth, 35 ° C fermentation and enzymatic hydrolysis for 6 hours, boiling water bath inactivation for 10 minutes, after cooling to obtain fucoidan oligosaccharide solution; oligochitosan solution and fucoidan oligosaccharide solution were mixed at a ratio of 1:5, then filtered Sea water to 2L, spare.

[0025] A method for improving the survival rate of juvenile abalone during bait t...

Embodiment 2

[0030] Preparation of XS1412C strain fermentation broth:

[0031] Pick a single colony to inoculate the 2216E culture solution, shake and culture at 26°C for 6-8 hours, inoculate the fermentation culture solution with 4% inoculation amount, and ferment and culture at 30°C for 12-20 hours, until the bacterial concentration reaches 1×10 3 -1×10 8 cfu / mL is enough.

[0032] Preparation of chitosan-oligosaccharide solution: 16g chitosan was dissolved in 100mL 0.5% acetic acid solution; 21g low-viscosity sodium alginate was dissolved in 500mL seawater, and 25mL 1×10 7 -1×10 8 cfu / mL XS1412C strain fermentation broth, 35 ° C fermentation and enzymatic hydrolysis for 5 hours, boiling water bath inactivation for 10 minutes, after cooling, a fucoidan oligosaccharide solution was obtained; the chitosan oligosaccharide solution and the fucoidan oligosaccharide solution were mixed at a ratio of 1:5, and then filtered Sea water to 2L, spare.

[0033] A method for improving the survival...

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Abstract

The invention relates to the technical field of industrial aquaculture. Aiming at the problems of mechanical damage, poor feeding, pathogenic bacterium invasion, higher death rate and the like of juvenile abalones in a bait transferring period, the invention provides the following technical scheme: a method comprises the following steps: applying an XS1412C strain fermentation liquor among corrugated plates to which juvenile abalones are attached once every day at regular time in a week before juvenile abalone peeling; after juvenile abalone peeling, flushing away peeling liquid on the juvenile abalones collected in a net cage in clean sea water, and then soaking the juvenile abalones in an oligochitosan-alginate oligosaccharide solution for 20-90 seconds; after the juvenile abalones are transferred to a ridge tile attachment base, keeping running water in a juvenile abalone culture pond, keeping the water clear, and periodically feeding a bait added with the XS1412C strain fermentation liquor for 15-20 days. The method can remarkably improve the survival rate of the juvenile abalones in the bait transferring period, and meanwhile, is also beneficial to promotion of the growth of the juvenile abalones.

Description

technical field [0001] The invention relates to the technical field of industrialized aquaculture, in particular to a method for increasing the survival rate of juvenile abalone during bait transfer. Background technique [0002] There are many difficulties in the breeding process of abalone. Due to the prohibition of drugs, no drugs can be used to assist in the breeding of abalone, and the mortality rate of juvenile abalone farming is very high, especially during the period of baiting of juvenile abalone. The feeding period of juvenile abalone is the period when juvenile abalone switches from feeding on benthic diatoms to artificial feed. After the juvenile abalone is cultivated, the early growth mainly feeds on benthic diatoms. Usually, the benthic diatoms are cultivated on plastic corrugated boards, and the juvenile abalones are attached to the corrugated boards to feed. When the juvenile abalone grows to a certain size, the bait needs to be replaced. Peel off the juveni...

Claims

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Application Information

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IPC IPC(8): A01K61/51A01K61/13A23K50/80A23K10/18A23K20/163C12N1/20C12R1/15
CPCA23K10/18A23K20/163A23K50/80A01K61/13A01K61/51C12N1/20Y02A40/81
Inventor 姚艳艳卢龙飞杨晓斌肖露阳刘光谋李长青
Owner 威海长青海洋科技股份有限公司
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