Open AccessSome Physiological Responses of Clarias gariepinus Fed Graded Levels of Cirina forda Larvae Based Diets
Author(s) -
A. A. Adewumi,
E. O. Idowu,
Jelhry Edward,
O.A. Iwalaye,
O.O. Fadiya,
B.D. Obafemi
Publication year - 2019
Publication title -
food science and nutrition studies
Language(s) - English
Resource type - Journals
eISSN - 2573-167X
pISSN - 2573-1661
DOI - 10.22158/fsns.v3n4p160
Subject(s) - clarias gariepinus , biology , zoology , fish meal , meal , maltase , digestive enzyme , feed conversion ratio , food science , fish <actinopterygii> , catfish , body weight , amylase , biochemistry , fishery , enzyme , endocrinology
The study examined the growth performance, hematological and digestive enzymes of Clarias gariepinus juveniles fed Cirina forda meal (CFM) based diets in the laboratory for a period of 10weeks. Five iso-nitrogenous (30%) experimental diets were formulated at various levels of CFM inclusion levels of 0% (control), 10%, 20%, 30%, 40% and 50%, designated as diets Q, A10, B20, C30, D40 and E50 respectively. Fish fed the CFM based diets showed mean weight gain (MWG), specific growth rate (SGR) and protein efficiency ratio (PER) comparable to the control diet. There was significant differences in the digestive enzyme activities of the fish as the CFM level in the experimental diets increased. Protease and maltase activities significantly increased, with diet C30 recording the highest maltase activity (4.37) while the cellulase and glucanase activities of the fish significantly (P 0.05) between the PCV and RBC of the blood of the fish fed the various diets. Highest RBC (2.75 x106/µL) was obtained in fish fed the control diet while the lowest (2.55 x106/µL) was recorded in the fish fed diet E50. The White Blood Cell count and the Neutrophils of the fish fed the trial diets were not significantly higher (P>0.05) than those of the fish fed the control diets. From the results of this experiment, it is concluded that up to 50% inclusion level of Cirina forda meal in the diet of Clarias gariepinus was tolerable for good growth and physiological well-being of the fish.