Growth performance, oxidative stress and immune status of newly weaned pigs fed peroxidized lipids with or without supplemental vitamin E or polyphenols

Table 4 Serum oxidative stress markers in piglets fed control or peroxidized oil supplemented without or with antioxidants¹

Item	Treatments
	Control oil			Peroxidized oil			SEM	P-value²
	CON	VITE	POL	CON	VITE	POL	SEM	O	D	S	O × D	O × S	S × D	O × S × D
8-hydroxydeoxyguanosine, ng/mL
Day 14	5.1	5.5	5.1	4.6	5.1	4.2	0.79	0.128	0.653	0.705	0.458	0.298	0.513	0.856
Day 35	4.8	4.9	5.7	4.8	5.3	4.8	0.79	0.128	0.653	0.705	0.458	0.298	0.513	0.856
Protein carbonyl, pmol/mg protein
Day 14	2.09	1.91	1.93	1.89	2.24	2.10	0.22	< 0.001	< 0.001	0.446	< 0.001	0.231	0.553	0.099
Day 35	2.28	2.58	2.37	3.25	3.11	3.69	0.22	< 0.001	< 0.001	0.446	< 0.001	0.231	0.553	0.099
Malondialdehyde, μmol/L
Day 14	11.7	13.9	12.5	8.6	8.3	8.4	0.89	< 0.001	0.004	0.165	0.001	0.132	0.457	0.460
Day 35	11.2	12.2	14.1	11.9	12.0	12.1	0.89	< 0.001	0.004	0.165	0.001	0.132	0.457	0.460
Total antioxidant capacity, Cu reducing equivalents/mL
Day 14	288	323	303	295	255	261	15.87	< 0.001	< 0.001	0.538	0.924	0.045	0.025	0.305
Day 35	335	355	379	317	310	335	15.87	< 0.001	< 0.001	0.538	0.924	0.045	0.025	0.305

¹Values represent least squares means of 8 pigs. Antioxidant supplementation consisted of control (CON), vitamin E (VITE) or polyphenols (POL)
²Effects abbreviations: O oil source, D day, S supplementation, and their interactions

ISSN: 2049-1891