Demonstration of Artemia decapsulation
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Transcript of Demonstration of Artemia decapsulation
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Demonstration of Artemia decapsulation
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Background
Alveolar layer of the cyst are removed
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Why decapsulated cysts?A complete contamination free and sterile
productSeparation problems after hatch are
avoided
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Preparation
Tank set-up with stainless steel filter and aeration system
Addition of water and strong aeration
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Hydration
Dry cysts are hydrated in water with strong aeration
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Addition of chlorine and caustic soda => increases pH above 10
Addition of chlorine and hypoclorite solution
Temperature should be maintained within 25-30C
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Colour change
1. Dark brown2. Grey3. OrangeThe process is stopped immediately after orange
colour appear
Process lasts from 5-15 min
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Checking of bouyancy
Decapsulated cysts will sinkNon-decapsulated cysts will float
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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
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Transfer to hatching tank