Table 2.

Comparison of mean oocytes diameter after 6, 12, and 24 months and GSI values between experimental groups after 12 and 24 months of the study. Mann–Whitney test between each two groups and multiple comparisons Kruskal–Wallis test between all groups. Comparison of Spearman’s correlation coefficients (r) for the relationship between the oocytes diameter or GSI value and Pb concentration in gonads

Months of exposure	Control	8	13	24	49	8-dep	13-dep	24-dep	49-dep	Statistic	r
	Mean oocytes diameter
6	0.5a	0.7b	1.2c	1.1c	1.1c	–	–	–	–	p < 0.001	0.72***
12	0.8a	1.0b	0.8a	0.8a	0.8a	–	–	–	–	ns	−0.13
24	0.8a	0.8a	0.8a	0.9a	0.9a	0.8a	0.8a	0.8a	0.9a	ns	0.14
	GSI
12	11a	6b	7b	6b	8b	–	–	–	–	p < 0.001	−0.58***
24	14	10	11	13	12	11	10	12	14	ns	−0.49*

*p < 0.05; ***p < 0.001