Effects of Varying Dietary Protein Levels on Growth Performance, Survival, Body Composition, Haemato-Biochemical Profile, and Metabolic Responses of Hypselobarbus jerdoni (Day, 1870) Juveniles

Table 4

Digestive enzyme activities of H. jerdoni juveniles fed diets containing varying levels of dietary protein for the experimental period of 60 days.

^aTreatments	^bAmylase	^bProtease	^cLipase
TCP20	1.85^d	53.24^a	4.90
TCP25	1.52^c	61.00^b	5.24
TCP30	1.47^bc	62.89^bc	4.11
TCP35	1.32^b	66.49^cd	4.78
TCP40	1.08^a	66.91^d	4.62
TCP45	1.09^a	67.24^d	5.28
SEM	0.07	1.26	0.21
Overall ( value)	0.001	0.001	0.680
Linear ( value)	0.001	0.001	0.878
Quadratic ( value)	0.001	0.001	0.529

Mean values (n = 3) in the same column with different superscripts differ significantly (). ^aTreatment groups having graded levels of protein, i.e., TCP20, 200 g/kg protein; TCP25, 250 g/kg protein; TCP30, 300 g/kg protein; TCP35, 350 g/kg protein; TCP40, 400 g/kg protein; TCP45, 450 g/kg protein. ^bAmylase activity is expressed as the micromole of maltose released/min/mg protein. ^cProtease activity is expressed as millimole of tyrosine released/min/mg protein. ^dLipase activity is expressed as units/min/mg protein.