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Live food aquaculture training coursewww.aquatrain.org
Rotifer culture systems
Live food aquaculture training coursewww.aquatrain.org
Rotifer Batch Culture
Low density in large tanks 3 to 10 m3 inoculate at 50/ml increasing to 250/ml
Medium density in tanks 2 to 5 m3 inoculate at 200/ml increasing to 800/ml
High density in tanks 2 to 3 m3 inoculate at 500/ml increasing to 2000/ml
Ultra high density in 1 to 3 m3 inoculate at 1000/ml increasing to 3500/ml to
10,000/ml
Live food aquaculture training coursewww.aquatrain.org
Batch culture of Rotifers
Live food aquaculture training coursewww.aquatrain.org
Batch culture of Rotifers
500/ml 800/ml 1200/ml 2000/ml
• 4 day cycle
• 2000/ml - 500/ml = 1500/ml = 1.5 bil/m3
Live food aquaculture training coursewww.aquatrain.org
Semi-continuous culture of Rotifers
• 10 to 15 % harvested daily then taken for enrichment
• each tank operated for up to 10 days
Feed, B12
sterlised water
Live food aquaculture training coursewww.aquatrain.org
Semi-continuous culture of Rotifers
• 10 to 15 % harvested daily (12.5%)
• 250/ml harvested daily x 4 tanks = 1000/ml= 1 bill/m3
2000/ml 2000/ml 2000/ml 2000/ml
Live food aquaculture training coursewww.aquatrain.org
Continuous culture of Rotifers
• 20 to 25 % harvested daily (22.5%)
• 450/ml harvested daily x 4 tanks = 1800/ml = 1.8 bill/m3
2000/ml 2000/ml 2000/ml 2000/ml
RecircBiofilter
Prot SkimUV
Live food aquaculture training coursewww.aquatrain.org
High density continuous production
Recirculation system
Pump
Biofilter
Protein skimmer + O3
UV steriliser
Live food aquaculture training coursewww.aquatrain.org
High density rotifer production
Live food aquaculture training coursewww.aquatrain.org
Collection system
Rotifers Rinsing water
Aeration ring
Live food aquaculture training coursewww.aquatrain.org
Improved filter system
Rotifers Rinsing water
Aeration ring
Live food aquaculture training coursewww.aquatrain.org
Culture tank Settling tank (pump) Skimmer loop (ozone, Pskimmer, U.V.) Biofilter
Continuous rotifer production system (CROPS) Design
Live food aquaculture training coursewww.aquatrain.org
Design schematic
F ilte r 6 0 u mFilter 30 um
P
O z o n e
Ski
mm
er
U V
B ypass b io filter
Bio
flow
Air
lift
L o w P re ss u re A ir
O x y g e n
B ypass sk im m er
Live food aquaculture training coursewww.aquatrain.org
Construction
Live food aquaculture training coursewww.aquatrain.org
Ozonator and protein skimmer
Live food aquaculture training coursewww.aquatrain.org
Culture tank Settling tank (pump) Skimmer loop (ozone, Protein
skimmer, U.V.) Biofilter
Continuous rotifer production system (CROPS) Design
Live food aquaculture training coursewww.aquatrain.org
Improved CROPS Design
Live food aquaculture training coursewww.aquatrain.org
Paste feeding system
