Table 1.

Total antioxidant capacity of boar sperm samples submitted to oxidative stress (CTR except) and supplemented with aminoguanidine.

Treatment	Time (h)	Total Antioxidant Capacity (mM)
CTR	0	0.4 ± 0.1 a
CTR	2	0.1 ± 0.0 a,A
CTR-ox	2	0.4 ± 0.2 A
Ag10-ox	2	2.1 ± 0.1 ***
Ag1-ox	2	0.5 ± 0.1
Ag0.1-ox	2	0.4 ± 0.3
CTR	3.5	0.2 ± 0.0 a,A
CTR-ox	3.5	0.2 ± 0.0 A
Ag10-ox	3.5	2.2 ± 0.1 ***
Ag1-ox	3.5	0.5 ± 0.1 *
Ag0.1-ox	3.5	0.2 ± 0.1

Total antioxidant capacity is expressed as Trolox equivalents. Different superscript lower-case letters indicate significant differences (p < 0.05) among times for the control samples without induced oxidative stress. Different superscript upper-case letters indicate significant differences (p < 0.05) within each given time between the control samples with and without induced oxidative stress. The asterisks indicate significant differences (* p < 0.05; *** p ≤ 0.001) within each given time between the treatments and the control samples submitted to induced oxidative stress. CTR = control; ox = samples submitted to induced oxidative stress; Ag10 = 10 mM aminoguanidine; Ag1 = 1 mM aminoguanidine; and Ag0.1 = 0.1 mM aminoguanidine. Data are shown as mean ± standard error of 5 replicates.