Table 2. Effect of mitochondrial antioxidants on developmental competence of porcine embryos.

Group	No. of	No. of	No. of	Rate of	n=	TCN
	replicates	embryos	blastocysts	blastocyst (%)
Control	25	522	147	28.5 ± 3.2	89	37.8 ± 1.1
MitoT	25	526	158	30.5 ± 3.2	105	37.5 ± 1.0
MitoQ	25	534	171	32.2 ± 3.2	113	35.0 ± 1.3

At day 2 post-activation, > 4-cell stage embryos were cultured in medium containing ethanol (Con, 1:1000), and antioxidants (0.1 µM MitoT or 0.5 µM MitoQ) for 5 days, and the rate of blastocyst per embryos were examined. Total cell number (TCN) of the blastocysts and number of blastocyst (n) examined are shown. Data are presented as the mean ± SEM.