Data for all measured parameters were analyzed using SPSS for
Windows, Version 16.0. Variations of growth performance, feed utilization,
and proximate composition of monosex male tilapia between dietary treatments
were compared by one-way ANOVA. Where effects were significant,
ANOVA was followed by Tukey’s HSD post hoc test to detect differences
between means. Water quality data (temperature, dissolved oxygen, nitritenitrogen,
and total ammonia nitrogen concentration were analyzed through
repeated measure one-way ANOVA. Differences were significant at P < .05.