Effects of dietary olive pomace meal levels on growth performance, feed utilization and bio-economic analysis of juvenile tilapia (Tilapia zillii)

Abstract

The aim of this study was to evaluate the effects of replacing wheat meal with olive pomace meal (at 10%, 209 and 309 ratios) on growth performance, feed evaluation and bio-economic analysis of Tilapia zillii.. The trial was performed by using four groups and three replications: 10 fish per/aquariums were fed with experimental diets for 45 days. The results of the research did not show any statically significant differences in the growth parameter among the fish groups that were fed with or without the olive pomace (p> 0.05). The use of 20% olive pomace meal diet showed similarities with con frol group growth performance and specific growth rate results. The best feed conversion ratio was observed in the control group while in the other groups it increased with increasing of olive pomace meal in diets (p> 0. 05).Thereplace of 10% olivepomace meal in diets showed similarities with the con frol group on in terms of feed conversion ratio On the other hand, the feeding costs of the olive pomace groups were found higher than the control fish group. In conclusion, specific proportions of olive pomace meal may be used as an alternative raw source in Tilapia zillii juvenile diet.