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GROWTH STUDIES ON Clarias gariepinus JUVENILES FED DIFFERENTLY FORMULATED FISH FEEDS WITH NEEM LEAF ADDITIVE CULTURED IN FIBRE GLASS TANKS
Abstract
Studies on the growth of Clarias gariepinus juveniles (initial mean weights of 13.33 ±0.18g) fed four differently
formulated fish diets and control were carried out in fibre glass tanks for eight weeks to assess the effect of neem
leaf additive on bambara nut waste and Mucuna based diets. At the end of the experiment, fish fed commercial
feed (E) had the highest growth response(58.33 ± 3.18g) followed by bambara nut-neem diet (C) (39.17 ± 1.41g),
while fish fed bambara nut waste based diet (A) (33.77 ± 1.68g) had the lowest. The highest mean weight gain per
day was observed in fish fed commercial diet (E) (0.80 ± 0.06g) followed by fish fed bambara-neem diet (C) (0.46
± 0.02g), while bambara nut waste (A) (0.35 ± 0.01g) recorded the lowest. The highest specific growth rate (SGR)
value was observed in fish fed commercial diet (E) (2.64 ± 0.10), followed by bambara nut-neem diet (C) (1.92 ±
0.05g), while fish fed bambara nut waste diet (A) (1.55 ± 0.07) had the lowest value. Feed intake was highest for
fish fed commercial diet E (84.23 ± 11.20g), followed by Mucuna diet B (72.87 ± 9.21g), while fish fed Mucunaneem
leaf diet (C) (53.23 ± 2.84g) had the lowest. The highest feed conversion ratio was observed in fish fed
bambara nut waste diet (A) 2.90 ± 0.11g), followed by fish fed bambara nut waste-neem leaf diet (C) (2.69 ±
0.12g), while commercial diet (E) (1.8 ± 0.14g) had the lowest value. All the results were significant (P<0.05).
There was no significant (P> 0.05) difference on percentage mortality among the dietary treatments, which
ranged from 1.67 ± 0.33 to 3.33 ± 0.67%. The result from this study indicate that, though response from neem leaf
additive was low, percentage mortality was not significant. Neem leaf additive is therefore recommended in the
diet of C. gariepinus juvenile without compromising growth performance and feed u
