Evaluation of fixed and demand feeding regimes for cage culture of Oreochromis aureus
1988
Hargreaves, J.A. | Rakocy, J.E. | Nair, A. (Virgin Islands Univ., Kingshill, St. Croix (USA). V.I. Agricultural Experiment Station)
Growth, feed conversion, marketable fish production, and labor required for feeding were compared for fixed and demand feeding regimes for cage culture of blue tilapia (Oreochromis aureus). Fish growth was not different (P0.1). Observed mean feed conversion ratios of fish obtaining feed from demand feeders were lower than for fish fed according to a fixed regime. Differences in marketable production of fish fed according to the two regimes were obscured by differential mortality and interference by tilapia recruits to cages. Labor for demand feeding was 6% to 12% of the requirement for fixed feeding.
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