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Effects of Alstonia boonei, Spondias mombin and Morinda lucida leaves extracts on growth and haematology of African Catfish (Clarias gariepinus) Juveniles
Department of Marine Sciences, University of Lagos, Akoka, Yaba, Lagos, Nigeria
July 2020
ABSTRACT
This study evaluated the growth performance and haematology of C. gariepinus fed A. boonei, S. mombin and M. lucida leaves extracts for 49 days. A total of 168 fingerlings were randomly allotted to seven treatment of twenty-four fish each at triplicate of eight fish per tank. The seven treatments are diet 1 (control, 0 mL), diet 2 (2mL A. boonei), diet 3 (4mL A. boonei), diet 4 (2mL S. mombin), diet 5 (4mL S. mombin), diet 6 (2mL M. lucida) and diet 7 (4mL M. lucida). Diets had no effects (p > 0.05) on mean weight gain, specific growth rate, feed conversion ratio and protein efficiency ratio across treatments. However, fish fed diet 3 (4mL A. boonei) recorded the highest values for mean weight gain, specific growth rate, feed conversion ratio, protein efficiency ratio and the best value (1.22±0.23) for feed conversion ratio when compared with others. With the exception of MCV and MCHC, no significant differences (p>0.05) were recorded in the values of haematological indices across treatments. The results of this study showed that 4 mL A. boonei could be used to supplement the diet of C. gariepinus for optimal growth and improved health.
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