Fish Nutrition and the Economic Way to Feed Fish

BACKGROUND

The aim of most farmers has always been to 1 maximize their gains and break even within the shortest possible period. However, no healthy animal can develop optimally without being adequately well fed. Fish are normally fed collectively without special monitoring of individual fish feeding behaviour or agility. Thus, it must be ensured that an adequate quantity of feed is served periodically without (much) wastage. Feed may be served based on an estimated fish biomass (total body weight) or to satiation to ensure adequate growth. The biomass is estimated at intervals by random sampling of a number of fish through which the total weight and growth rate of cultured - fish are deduced. A selected percentage of the estimated biomass is then served as the daily feed intake, based on the age, size and management