Validation of a growth simulation model for catfish
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Computer simulations can help in understanding how a fish population responds to a series of decision variables and external factors, thus contributing to better control of the production system. This paper describes a model which has been expanded to deal more explicitly with the effects of water quality and stocking density. The purpose of this paper is to compare simulated model results with actual pond trial results to determine the accuracy of the simulation and to assess the need and ability to make adjustments to the model. Data from a pond experiment using satiation and restricted feeding regimes at 26, 32, and 38% feed protein level were used to validate and adjust the parameters of the simulation model. Actual feeding, temperature, and dissolved oxygen (DO) were incorporated into the simulation, and feed consumption and final weight were compared to simulated feed consumption and final weight. After adjustments for water quality, stocking density, and growth parameters, simulated results ranged from 0 to 9% of pond experiment results. Simulated results of restricted feeding treatments were within 5% of pond results. © 1994.
author list (cited authors)
Tai, C., Hatch, L. U., Masser, M. P., Cacho, O. J., & Hoffman, D. G.