The Biology and Culture of Tilapias

. Table 16 (cont'd)

Stocking data Growth data Harvesting data Culture

Pmi Bi G MSG DRIB B t MP period

(g) ~lm~ (4/m3) (gld) (%) (%) (41m3) (behn3) (mo) References and remarks

S. nibticus

Extensive. unfertilized pond. all males

Intensive, 24% protein moist pellets

Intensive. artificial lake, 25% protein

sjnlcing pellets

Intensive, artificial lake, 25% protein

sinking pellets

Intensive, artifical lake. 20% protein

sinking pellets

Intensive. unfertilized pond, 46% pro-

tein, all males

Intensive, unfertilized pond, 46% pro-

tein. all males

Intensive, artificial lake, 22% protein

Pellets

T. rendalli

Semi-intensive. fed Alocasia leaves

Semi-intensive. fed Abcasia leaves

Semi-intensive. fed Alocasia leaves

+ wheat bran

Philippart et al. 1979

Guerrero 1979a

Coche 1977

Coche 1977

Campbell 1978b

Philippart et al. 1979

Philippart et al. 1979

Campbell 1978b

McLamey 1978

Corredor 1978

Pmi : mean weight at stocking

N : number of flsh

: mean biomass at stocking

2 : average growth nte of individual fish d- the culture peiod

MSG : avede monthly specific growth rate

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

: mean biomass at harvest 100

% : avexage monthly produdon: (Bf - Bi) observed and recalculated on a 3Oday basis