. 2022 Apr 12;13:831945. doi: 10.3389/fmicb.2022.831945

Table 8.

Effects of trace mineral type (coated or uncoated) and supplementation level (300, 500, or 1,000 mg/kg) of trace minerals on serum antioxidant status in ducks.

Trace minerals	Level (mg/kg)	MDA, (nmol/ml)	SOD (pg./ml)	GSH-Px, (pg./ml)	T-AOC, (U-pg/ml)
Uncoated	300	15.21^a	305.30	293.30^d	12.68
	500	13.79^b	418.88	328.73^d	13.51
	1,000	9.09^d	505.25	416.72^b	14.77
Coated	300	11.73^c	381.03	375.03^c	13.35
	500	9.05^d	442.75	475.82^a	14.38
	1,000	9.93^d	555.05	392.23^b^,^c	15.29
SEM		0.900	41.018	30.112	2.263
Main effect
Trace minerals	Coated	10.24	459.61	410.75	14.28
Trace minerals	Uncoated	13.01	404.05	348.44	13.51
Level	300	14.44^a	346.61^c	334.17^b	13.01
	500	10.39^b	430.82^b	410.44^a	13.94
	1,000	9.59^c	535.13	404.48^a	15.06
Value of p
Trace minerals		<0.001	0.002	<0.001	0.406
Level		<0.001	<0.001	<0.001	0.16
Interaction		<0.001	0.348	<0.001	0.984

MDA, malondialdehyde; SOD, superoxide dismutase; GSH-Px, glutathione peroxidase; and T-AOC, total antioxidant capacity.

^a,b,c,d

Means within columns not sharing a common superscript are significantly different at the 5% level of probability.