appears that supplemental feeds are sufficient for at least the first 84
days.
Feed rates in this study were substantially greater than those used in
earlier studies (Table 1). This was initiated to compensate for the lack of
nutritional contribution from natural food items at the high-biomass densities.
New management practices and increased production rates represent
a shift from semi-intensive culture to intensive culture as described
by Valenti and New (2000). However, additional research is needed to
quantify appropriate feed rates for different production technologies and
to determine the most economical use of phase-feeding techniques.