Table 7.

Blood glucose and cortisol levels of Nile tilapia fed different levels of Persicaria odorata meal for 10 weeks.

Items	PO0	PO15	PO30	PO50	SEM	Linear	Quadratic
Hematological parameters
Glucose (mmol/L)	78.67 ± 4.04	79.33 ± 3.51	73.33 ± 1.15	67.00 ± 2.00⁣∗	2.375	0.010	0.071
Cortisol (mg/mL)	2.52 ± 0.20	1.86 ± 0.15⁣∗	1.76 ± 0.18⁣∗	1.77 ± 0.08⁣∗	0.166	< 0.001	0.016

Note: Data are mean ± SD values (three fish from each tank were pooled, n = 3).

⁣^∗Significant differences when compared to the control group (PO0, Dunnett's test, p < 0.05).