Table 4. Effects of IgG at different dilution proportions on cleavage at 48 h during IVF

IgG	No. of oocytes	Cleavage at 48 h (%)
0	232	53.21 ± 1.20
1:50	213	52.32 ± 1.08
1:200	182	54.65 ± 0.43
1:500	196	51.46 ± 1.52
1:1000	215	54.73 ± 2.18
1:2000	233	53.92 ± 1.74

The experiment was replicated four times.
Percentages are expressed as the mean ± SEM.
Cell cleavage was no. of 2-cell/no. of oocytes.
IgG, Immunoglobulin G; IVF, in vitro fertilization.