Growth performance of Oreochromis Niloticus Fed Brewer’s dry grain (BDG) base NIFFR feed supplemented with Xylanase enzyme

Abstract

A total of 240 Oreochromis niloticus fingerlings with weight range of 3.12 – 3.19g in a 3×4 factorial design with triplicate groups were used for the study after two weeks acclimation by substituting wheat offal with brewer’s dry grain at 0, 10, 20, and 30% respectively, supplemented with three inclusion levels of xylanase enzyme at zero, recommended (1mg/kg) and above recommended (1.5mg/kg) levels in a 30% crude protein diet. Results showed treatment 8 recorded a significant weight gain compared to other treatment, though there was no significant difference (P>0.05) recorded in specific growth rate. Treatment three, six, and eight recorded the best result in all the parameters at an optimum inclusion level of 10% or 20% (with recommended enzyme ratio), and even at 30% (without enzyme inclusion) without any adverse effect. Treatment 10 recorded an overall poor result in all the parameters.