[1] Univ Ghent, Lab Aquaculture & Artemia Reference Ctr, Dept Anim Sci & Aquat Ecol, Coupure Links 653, B-9000 Ghent, Belgium
[2] Mt Moon Univ, Fac Agr & Environm Sci, Dept Crop & Anim Prod, POB 367, Ft Prtal, Uganda
[3] Busitema Univ, Fac Agr & Anim Sci, Dept Agribusiness & Extens, POB 236,Jinja Malaba Rd, Tororo, Uganda
[4] Univ Greenwich, Nat Resources Inst, Food & Markets Dept, Cent Ave, Kent ME4 4TB, England
[5] Univ Ghent, Fac Biosci Engn, Dept Agr Econ, Coupure Links 653, B-9000 Ghent, Belgium