Utilization of Corncob as Feedstuff on Growth Performance, Feed Utilization and Carcass Composition of Nile Tilapia (Oreochromis niloticus L.)

Abstract

The utilization of corncob as feedstuff was investigated to examine the diet contained corncob in the fingerling Nile tilapia (Oreochromis niloticus L.). The initial weight of Nile tilapia fingerlings ranged from 14.66 – 16.66 g/fish. The experiment was divided into four groups by the levels of corncob of 0%, 2%, 8% and 15% and conducted for 120 days. At the end of experiment, the results showed that the growth performance and feed utilization each groups were not significant different (P > 0.05). In addition the carcass composition and composition of edible flesh have no difference (P > 0.05). On the other hand, the feed cost was decrease by variation with the level of corn cob in diet were 0.14, 0.56 and 1.05%, respectively. Moreover, the water qualities of fish fed with feed contained corncob at different levels were in range of water quality standard. The study indicated that the diets containing corncob at 15% of fiber no negative effect on growth, feed utilization, carcass composition and edible flesh quality. Moreover, it’s affected on cost - effectiveness.