The Biology and Culture of Tilapias

Table 13 (cont'd)

Country Feeding details

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Stocking data Growth data Harvesting data Culture

B. G MSG DRIB Pmf Bf MP period

~/m~ (kg/A3) (gld) (96) (%I (g) (kg/m3) (kg/m3) FCR (dl References and remarks

Belgium commercial pellets

(46% protein):

DFR 7% B

Ivory Coast

Central African
Republic

Belgium

chicken feed pellets

(24.7% protein):

DFR 4 to 6% B

see Table 94 :

DFR 6% B

commercial pellets

(46% protein): DFR 7

reducing to 3% B

Philippart et al. 1979: 0.5 ma

cages in thermal effluent.

average temperature 27.9'~

Coche 1977: 1 m3 cages

(mesh 2.5 cm) in lake; DO

< 5 mg/L; monosex males

N'Zimasse 1979: 1 m3 cages

in fertilized ponds; monosex

males; low DO'S

Philippart et al. 1979; 0.5 m3

cages in thermal effluent,

average temperature 25 to

27'~; monosex males;

**DFR= 7%B;*DFR=3%B

Bi :
G:
MSG :
DRIB :
Pmf :
Bf :
MP :
FCR :
DFR :
B:
DO :

mean weight at stocking

number of fish

mean biomass at stocking

average growth rate of individual fish during the culture period

average monthly specific growth rate

daily rate of increase of the biomass calculated from Bf = Bi (1 + i)n where n is the culture period in days and i is EB

mean weight at harvest 100

mean biomass at harvest

average monthly production: (Bf - Bi) observed and recalculated on a 3May basis)

feed conversion ratio, on a net weight basis unless otherwise indicated

daily feeding rate as % B (biomass)

biomass

dissolved oxygen