Table 18. A comparison of the production potentials of Sarotherodon aureus, S. niloticus, Cyprinus carpio, Zctalurus punctatus and Salmo gairdneri in intensive
cage culture. Data averaged from various authors: see Table 16 for Sarotherodon spp. and Coche 1978,1979 for other species.
Estimated annual
Best average Actual average production
Growth production production potential
(dd) (kg/m3/mo) (Wm3/mo) (kg/m3*) Feeding FCRS. aureus 1.0 to 1.7 > 25 over 5 mo 10 to 20 200 to > 300 40% protein floating pellets 1.0 to 1.8
S. niloticus 1.0 to 2.3 > 15over4mo 5 to 10 200 to > 300 25 to 30+% protein 1.9 to 2.2
sinking pellp
C. car~w 3.3 to 7.7 > 35 over 3.5 mo 5 to 30 > 420 30 to 354% protein 1.6 t~ 2.3
I. punctatus 1.5 to 2.2 25 over 8 mo 10 to 20 240 36% protein floating pellets 1.0 to 1.7
Salmo gairdneri 0.3 to 1.9 25 over 4 mo 1 to10 300 40 to 46% protein 1.4 to 2.5
*mainly based on data from small cages (1 to 6 m3); these values would be lower for larger cages.