Table 3 Effect of melatonin on number of oocytes retrieved from ovaries and oviducts.

From: Melatonin improves age-induced fertility decline and attenuates ovarian mitochondrial oxidative stress in mice

Length of treatment (months)

Groups

No. of mice examined

Ovarian GV oocytes

No. of mice examined

Ovulated MII oocytes

Total number

Number of oocytes recovered/mouse Mean ± SD (n)

Total number

Number of oocytes recovered/mouse Mean ± SD (n)

6

Vehicle

13

402

30.5 ± 5.7

12

227

18.2 ± 4.4

Melatonin

12

386

31.9 ± 4.5

12

239

19.7. ± 5.6

12

Vehicle

19

313

16.3 ± 4.1

26

118

4.5 ± 3.8

Melatonin

19

447

23.2 ± 3.2*

19

186

9.6 ± 3.4*

  1. *P < 0.05, **P < 0.01 versus vehicle; values are mean ± SD.