Live food aquaculture training course Demonstration of Artemia decapsulation.

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Live food aquaculture training course www.aquatrain.org Demonstration of Artemia decapsulation

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Transcript of Live food aquaculture training course Demonstration of Artemia decapsulation.

Page 1: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Demonstration of Artemia decapsulation

Page 2: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Background

Alveolar layer of the cyst are removed

Page 3: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Why decapsulated cysts?

A complete contamination free and sterile product

Separation problems after hatch are avoided

Page 4: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Preparation

Tank set-up with stainless steel filter and aeration system

Addition of water and strong aeration

Page 5: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Hydration

Dry cysts are hydrated in water with strong aeration

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Live food aquaculture training coursewww.aquatrain.org

Addition of chlorine and caustic soda => increases pH above 10

Addition of chlorine and hypoclorite solution

Temperature should be maintained within 25-30C

Page 7: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Colour change

1. Dark brown

2. Grey

3. Orange

The process is stopped immediately after orange colour appear

Process lasts from 5-15 min

Page 8: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Checking of bouyancy

Decapsulated cysts will sinkNon-decapsulated cysts will float

Page 9: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Termination of process Process is stopped by adding large amounts of water

until the smell of chlorine has disappeared

• Hypoclorite residue absorbed by the cysts is neutralized by

0.1 % Sodium Thio-sulfate

Page 10: Live food aquaculture training course Demonstration of Artemia decapsulation.

Live food aquaculture training coursewww.aquatrain.org

Transfer to hatching tank


Demonstration of Artemia decapsulation

Demonstration of Artemia decapsulation

INCO project Artemia biodiversity Beijing Workshop, September 23-26, 2002 Artemia characterisation based mainly on mtDNA RFLP analyses and progress in.

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r e Rese Journal of Aquaculture - longdom.org · to ensure thorough mixing. The composition of the emulsion used for enriching the . Artemia. is given in Table 1. Formulation of inert

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