Table 2. Summary of results obtained with the &-male tilapia hybrid (Sarotherodon niloticus? x S. hornorurn d) cultured with organic and inorganic fertilizers and rations in the
northeast of Brazil.
Average Average Net Culture
Stocking Fish stocking final yield Conversion Growth Net yield period
ratema Fertiier ration wt (g) wt (g) kgFa ratio glday kglhalday (days)
control
Cow manure 840 kg/ha/wk- control
Cow manure 840 kglhalwk
Cow manure 1,400 kg/ha/wk
TSPI-29 kgFall5 d AS^-29 kglhall5 d
Cow manure. 1,400 kgbalwk
control
TSP-17 kglhal15 d
AS-40 kglhall5 d
TSP-8.7 kglhaIl5 d
TSP-56 kg/ha/l5 d AS-56 kg/ha/l5 d
70 pigsha of water
120 pigsha of water
60 pigsha of water
Chicken manure. 500 kg/ha/wk- 50% wheat bran, 50% castor bean
meal, 3% body weightld
50% wheat bran, 50% castor bean
meal, 3% body weightld
50% wheat bran, 50% castor bean
meal, 3% body - wt/d
Rice bran, 3% body wtld
Castor bean meal, 3% body wtld
Palm nut cake, 3% body wt/d
Cottonseed cake, 3% body wt/d
50% palm nut cake
50% palm nut cake, 50% cottonseed
cake, 5% body wtld
50% palm nut cake. 50% cottonseed
cake, 5% body wt/d
50% palm nut cake, 50% cottonseed
cake. 5% body wtld
cottonseed cake. 2% fish body wtld~TSP = Triple Superphosphate
AS = Ammonium Sulfate