Modeling Nile Tilapia Heterogeneous Growth under Different Stocking Densities during Pre-Grow-Out Stage

Table 3

Validation of the modified growth models in the homogeneous scenario for tilapia Oreochromis niloticus.

Models	Statistics	Treatment 1	Treatment 2	Treatment 3
von Bertalanffy	R^2; RMSE; U; U^m; U^s; U^c	0.985.79; 0.06; 0.09; 0.00; 0.91	0.97; 6.56; 0.09; 0.20; 0.00; 0.80	0.98; 7.39; 0.09; 0.64; 0.12; 0.24
Logistic 1	R^2; RMSE; U; U^m; U^s; U^c	0.99; 6.58; 0.06; 0.31; 0.15; 0.55	0.97; 5.97; 0.09; 0.11; 0.00; 0.88	0.98; 6.45; 0.09; 0.51; 0.19; 0.30
Pütter	R^2; RMSE; U; U^m; U^s; U^c	0.99; 5.62; 0.06; 0.08; 0.01; 0.92	0.97; 6.60; 0.09; 0.24; 0.00; 0.76	0.98; 8.21; 0.09; 0.66; 0.15; 0.20
Logistic 2	R^2; RMSE; U; U^m; U^s; U^c	0.99; 6.54; 0.07; 0.03; 0.35; 0.64	0.97; 5.84; 0.09; 0.05; 0.00; 0.95	0.98; 4.90; 0.09; 0.17; 0.25; 0.59
Gompertz	R^2; RMSE; U; U^m; U^s; U^c	0.99; 6.29; 0.06; 0.24; 0.03; 0.74	0.97; 7.35; 0.09; 0.39; 0.00; 0.61	0.98; 9.99; 0.10; 0.71; 0.15; 0.14

Note: R² = coefficient of determination; RMSE = root- mean- square error; U = Theil’s coefficient of inequality; U^m = proportion of mean; U^s = proportion of variance; U^c = proportion of covariance.