Table 1. Summary of the results of culture experiments in Brazil in which all-male tilapia hybrids (Sarotherodon niloticus 9 x S. hornorurn d) were stocked at different levels in 350-m2
earth ponds and grown for 367 days. The figures are from single ponds. Source: various Brazilian biologists cited in Lovshin (1977).
Stocking level (fishma)13,000 15,000 17.000 19.000 21,000 23.000 25,000 27,000 29.000 31.000Fish stockedlpond
Average initial weight (g)
Average final weight (g)
Productionlpond (kg)Productionlha (kg)
Survival (%I
Feed conversion ratio at 6 months
Feed conversion ratio at 10 months
Feed conversion ratio at 12 months
Ration fedlpond (kg)--
%eluded are 62 kg of fish that died due to poor water quality 2 days before harvest.