Key words: fish growth model, feed conversion, feeding rate, SGR, adaptive feeding This study aimed to develop a fish growth model that incorporates time-dependent variations in feeding rate to support the application of adaptive feeding strategies, a...
Key words: fish growth model, feed conversion, feeding rate, SGR, adaptive feeding This study aimed to develop a fish growth model that incorporates time-dependent variations in feeding rate to support the application of adaptive feeding strategies, and to evaluate the growth prediction patterns and underlying mechanisms of the model using olive flounder (Paralichthys olivaceus) growth data. The study was conducted in four stages. First, a variable SGR model(vSGRf) was developed by extending the relationships among conventional fish growth models to simultaneously describe temporal changes in feeding rate and growth response. Second, the basic performance and predictive mechanism of the vSGRf model were evaluated using experimental growth data of olive flounder under different feeding rate conditions. Third, additional validation was performed using published olive flounder growth data to assess the generality of the model across heterogeneous experimental conditions. Finally, the model was applied to field-scale growth data from commercial farms to examine its practical applicability.