salinity & tilapia culture

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By: Jhon Delfin & Liana De Soto alinity & Tilapia Cultu

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2011 uog summer research apprentice program

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Page 1: Salinity &  Tilapia  Culture

By: Jhon Delfin & Liana De Soto

Salinity & Tilapia Culture

Page 2: Salinity &  Tilapia  Culture

(Oreochromis Niloticus x Oreochromis Mossambicus)

Page 3: Salinity &  Tilapia  Culture

The Beginning: Calculations

The Beginning: Calculati ons-Volume : ∏r 2(h)

Page 4: Salinity &  Tilapia  Culture

Finding the inflow rate

Page 5: Salinity &  Tilapia  Culture

Exchange rate

Salinity (ppt)

R H V Inflow Rate Exchange Rate

(in.) (m) (in.) (m) (m3) (m3/min) (%)

33 27.5 0.6985 23 0.5842 0.895 0.016 2574

24 28 0.7112 24 0.6096 0.968 0.019 2826

4 27.5 0.6985 23.25 0.59055 0.905 0.01 1592

14 27.75 0.70485 24 0.6096 0.951 0.0165 2498

Tank # Time:

Target Exchange Rate

Target Salinity

Calculate Inflow Rate(m3/min)

Inflow Rate(liter/min)Total Inflow

Total Exhange Rate

(%) (ppt) SeawaterFreshwater Seawater Freshwater (m3/min) (%)

OT51:04pm 100 33 0.001 0.000 0.622 0.000 0.001 100

OT61:30pm 1600 24 0.007 0.004 7.134 3.567 0.011 1592

OT111:44pm 1600 4 0.000 0.01 0.000 10.000 0.010 1600.000

OT121:45pm 1600 14 0.004 0.007 3.504 7.007 0.011 1592

Calculating Salinity Adjustments

Page 6: Salinity &  Tilapia  Culture

Acclimating tilapia to targeted salinity

Page 7: Salinity &  Tilapia  Culture

Salinity MonitoringMaintenance & Feeding

Page 8: Salinity &  Tilapia  Culture

Weight & count

Page 9: Salinity &  Tilapia  Culture

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 336

8

10

12

14

16

18

20

f(x) = 0.609977116704806 x − 0.403524027459953R² = 0.943990112961662f(x) = 0.530091533180778 x + 1.13409610983982R² = 0.962122570409208f(x) = 0.524942791762014 x + 1.04118993135011R² = 0.939108449116478

f(x) = 0.654233409610984 x − 0.148054919908468R² = 0.964250602164039

Salinity vs. Tilapia Weight

4Linear (4)14Linear (14)24Linear (24)33Linear (33)

July

Ave

rage

Wei

ght (

g)

Page 10: Salinity &  Tilapia  Culture

18 20 22 24 26 28 30 320

0.5

1

1.5

2

2.5

3

3.5

4

Food Conversion Rate

3324414

July

FCR

(%)

Page 11: Salinity &  Tilapia  Culture

33 24 4 143.8

3.9

4

4.1

4.2

4.3

4.4

4.5

Specific Growth Rate

Salinity (ppt)

Dai

ly S

GR

in P

erce

ntag

es (%

)

Page 12: Salinity &  Tilapia  Culture

33 24 4 1482

84

86

88

90

92

94

96

98

100Survival Rate

Salinity (ppt)

Surv

ival

Rat

e in

Per

cent

ages

(%)

Page 13: Salinity &  Tilapia  Culture

33 24 4 1462

64

66

68

70

72

74

76

78

80

Weight Gain

Salinity (ppt)

Body

Mas

s G

aine

d in

Gra

ms

(g)

Page 14: Salinity &  Tilapia  Culture

Conclusion

Page 15: Salinity &  Tilapia  Culture

Feeding

Page 16: Salinity &  Tilapia  Culture

Making of Fish Roe

Page 17: Salinity &  Tilapia  Culture

Algae

CENSORED

Page 18: Salinity &  Tilapia  Culture

Miscellaneous