Protective effect of resveratrol against cadmium-induced toxicity on ovine oocyte in vitro maturation and fertilization

Table 2 Effect of Res supplementation during IVM on meiotic maturation and fertilization of Cd-exposed oocytes

Groups	N° of oocytes	N° of MII oocytes	N° of fertilized oocytes, %
Groups	N° of oocytes	N° of MII oocytes	Normal (2PNs)	Polyspermy (> 2PNs)	Asynchronous	Unfertilized
Ctr	120	105 (87.5%)^a	59 (56.2%)^a	23 (21.9%)^b	6 (4.8%)	17 (16.2%)
Cd	146	106 (72.6%)^b	39 (36.8%)^b	38 (35.8%)^c	7 (6.6%)	22 (20.7%)
Cd-Res 1	105	88 (83.8%)^a	47 (53.4%)^a	16 (18.2%)^b	7 (7.9%)	18 (20.4%)
Cd-Res 2	102	80 (78.4%)^ab	41 (51.2%)^a	13 (16.2%)^b	6 (7.5%)	20 (25.0%)

The rate of fertilization was calculated from the number of MII oocytes. Values with different superscripts (a, b, and c) in the same column are significantly different (a vs. b: P < 0.05; b vs. c: P < 0.01)

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